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Scag Power Equipment STT-31BSD User's Manual

1. e 9 GLOW PLUG LIGHT 8 El a HATER SEPERATOR s eurn GLOW PLUG RELAY Ls WATER TEMP LIGHT a wong NGK RELAY MPUR STRIPE WATER TEMP GLOW PLUG INJECTION PUMP A OIL SENDER HOURMETER Loy OIL PRESSURE SWITCH CLUTCH 60 z2 n REPLACEMENT DECALS AND INFORMATION PLATES Advantage DANGER NWARN I NG I Y SPINNING BLADE ROTATING BLADES AND BELTS KEEP CLEAR Shut off engine disengoge blode 1 S D x Use coution in directing dischorge u CONTACT CAN INJURE x Reod instruction monuol before operoting lt is DO NOT OPERATE UNLESS GRASS CATCHER MULCHING KIT OR 482285 DISCHARGE CHUTE 15 INSTALLED CAUTION Avoid injuru from burns brut of f MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING PATENTS 4 487 006 4 991 382 5 826 416 4 885 903 4 998 948 5 832 708 4 920 733 5 042 239 5 865 018 4 967 543 5118517 192 666 PATENTS PENDING engine before removing Fuel tank cap 48656 Heavy Duty F REVERSE Commer cial 481568 481971 481971 482290 FORWARD R START DRIVE PROCEDURE Engoge porking broke Disengoge mower deck drive Move control handles to neutral Lock position eStort engine Releose pork
2. D gt o B SGB024 Slope Cut Sloping Bent spindle mounting area See your authorized SCAG dealer See your authorized SCAG dealer Ridges Across Width of Cutting Path Internal spindle failure See your authorized SCAG dealer Bent deck housing DN NAM AC N M NAA AN UN AA NAV N Width of Deck D _ 2 SGB025 21 See your authorized SCAG dealer Section 6 ADJUSTMENTS 6 1 PARKING BRAKE ADJUSTMENT AMWARNING Do not operate the mower if the parking brake is not operable Possible severe injury could result The parking brake linkage should be adjusted whenever the parking brake lever is placed in the ENGAGE position and the parking brake will not prevent the mower from moving If the following procedures do not allow you to engage the parking brake properly contact your Scag dealer for further brake adjustments Position a floor jack under the rear of the machine Raise the machine and support it to prevent it from falling Block the caster wheels to prevent the machine from moving Remove the drive wheels With the brake lever in the disengaged position check the distance between the top of the frame tube and the bottom of the brake handle The distance should be 2 to 2 1 4 See Figure 6 1 If the distance is not at the specified measurement adjust by loosening the jam nu
3. N OS N S NS S IOIO Q O O QI ONL l OO Y GO N O 36 38 39 41 Ref Part No 451481 04001 09 43606 04041 07 423946 9270 04001 45 04021 09 482283 481780 422682 04003 12 423425 04029 01 04019 03 04003 30 48661 43584 04003 04 482622 04021 09 451648 04019 04 04017 27 451480 423489 04021 09 04001 19 04001 125 04021 13 481559 04021 20 481657 482028 01 451450 451451 451452 451453 481025 04021 07 451416 04001 167 43583 482504 Description Fender Weldment RH Bolt Hex Head 5 16 18 x 1 Zinc Spacer Flatwasher 3 8 391 x 938 x 105 Seat Plate Suspension Seat Assembly Bolt Hex Head 3 8 16 x 2 0 Nut Elastic Stop 3 8 16 Battery Not Avail through Scag Pad Battery Cover Cover Battery Bolt Carriage 5 16 18 x 3 4 Plate Battery Box Wing Nut 1 4 20 x 3 4 Nut Hex Serrated Flange 5 16 18 Bolt Carriage 1 4 20 x 6 Rubber Pad Spacer Caster Wheel Bolt Carriage 5 16 18 x 1 Seal Lock Nut 3 8 16 Elast Stop Main Frame Nut Hex Serrated Flange 3 8 16 Screw Hex Serrated Flange 3 8 16 x 1 Fender Weldment LH Foot Plate Nut Hex Elastic Stop 3 8 16 Bolt Hex Head 3 8 16 x 1 Bolt Hex Head 5 8 11 x 4 Nut Hex Elastic Stop 5 8 11 Cap Grease Nut Hex Elastic Stop 1 0 14 Bearing W Race Plug 1 4 28 THD Form Extention Weldment Caster 61A LH Extention Weldment Caster 6
4. 7 5 ENGINE FUEL SYSTEM DANGER To avoid injury from burns allow the mowerto cool before removing the fuel tank cap and refueling Fuel Filter 57 with hose clamps above and below vei Figure 7 5 Fuel Filter STT99FF 1 A Filling the Fuel Tank Fill the fuel tank at the beginning of each operating day to within one inch below the filler neck Do not overfill Use clean fresh diesel fuel with a minimum cetane rating of 40 B Replacing In Line Fuel Filter Element NOTE The fuel filter is located below the hydraulic tank Figure 7 5 is for illustration purposes only The in line fuel filter Figure 7 5 should be replaced after every 500 hours of operation or annually whichever occurs first 1 Close the shut off valve Remove the two clamps securing the fuel filter to the fuel hose Remove the fuel filter 33 2 Install a new fuel filter Be sure it is installed in the proper direction Secure to the fuel hose using the two clamps 7 6 ENGINE AIR CLEANER A Cleaning and or Replacing Air Cleaner Element For any air cleaner the operating environment dictates the air cleaner service periods To make it convenient for you we have installed an Air Cleaner Indicator which is located just behind the air filter The indicator window will turn red when it is time to service the air filter Do not service the filter unless this indicator is red NOTE In extremely dusty conditions it may be
5. gain access to the cutter deck gearbox Section 7 SCAG 2 Clean and remove the check plug from the side of 2 Visually check the coolant level The coolant level the gearbox See Figure 7 12 Visually check that should be up to the bottom of the filler neck as the lubricant level is up to the bottom edge of the shown in figure 7 13 Add a mixture of coolant and check plug hole If lubricant is low add SAE 80 90 soft water as needed lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole NOTE Install the check plug and tighten securely Refer to the coolant manuafacturer s instruc tions for the proper coolant mixture ratio B Changing Lubricant Fill to Bottom of Filler Neck The lubricant in the cutter deck gearbox should be changed every 500 hours of operation or yearly whichever occurs first 1 Place a suitable container beneath the cutter deck gearbox and locate the gearbox drain plug 2 Remove the drain plug and drain the lubricant into the container and properly discard it 53646418 Figure 7 13 Coolant Level in Radiator 3 Re install the drain plug and add EP 80 90 lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole Install 3 Replace the radiator cap Push down on the cap and the check plug and tighten securely turn clockwise until it stops 7 12 COOLING SYSTEM iiia The cooling system
6. Ref Part No No OQ 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 37 38 40 41 42 43 44 45 46 47 48 482308 481742 482366 423379 04010 26 423639 481284 04019 03 48136 12 451486 422703 482404 423640 423637 451487 482363 04001 145 04030 06 04041 33 482403 423381 451403 423382 482362 04041 33 482270 04021 07 482602 43621 423638 423383 451404 423424 451083 482368 482405 481816 481924 481818 423915 48136 15 04001 08 04001 52 481827 04002 01 04001 32 Description Radiator Hose Upper Radiator Hose Lower Radiator Shroud Fan Screw 10 32 x 1 2 Coolant Tank Assembly w hose Not Avail Through Scag Contact Briggs amp Stratton Support Bracket Hood Bumper Rubber Nut Serrated Flange 5 16 18 Clamp 1 1 2 Dia Hood Weldment Hinge Hood Muffler with Guard Brace Muffler Support Mounting Bracket Hood Mounting Bracket Weldment Rear Engine Mount Engine ISO Mount Rear Bolt Hex Head 1 2 13 x 3 1 2 Lockwasher 1 2 Spring Flatwasher 1 2 531 x 2 0 x 25 Manifold Extension Exhaust Mounting Bracket Engine Mounting Bracket Weldment Engine L H Mounting Bracket Engine L H Engine ISO Mount Front Flatwasher 1 2 531 x 2 0 x 25 Engine Briggs amp Stratton 31hp Diesel Spec Not Available Through Scag Contact Briggs amp Stratton Nut Elastic Stop 1 2 13 Bus
7. Section 3 SPECIFICATIONS SCAG SABRE TOOTH TIGER ZERO TURN RIDER CUTTER DECK MODEL STT 31850 Type SMST 72A Advantage SMST 61A Advantage Floating adjustable anti scalping hybrid design combines out front and belly mount designs Advantage special extended front edge allows Bahia or other tough grasses to enter the deck standing upright for a clean cutting Construction 10 gauge steel top reinforced with 7 gauge support plate deck skirt is 7 gauge steel True Cutting Width 72 cutter deck 71 5 inches 181 6 cm 61 cutter deck 61 0 155 0cm Cutting Height Adjustment Foot operated pedal adjustment from operator s seat 1 to 6 in 1 4 increments Cutter Blades 72 Three 3 24 blades 61 Three 3 21 blades Cutter Deck Drive Drive shaft to 90 degree gear box Blade Engagement Electric blade engagement clutch with control panel knob Discharge Opening Extra wide 11 5 discharge opening with spring loaded discharge chute Caster Wheels 13 x 5 6 caster wheels with tapered roller bearing pivots Spindles Heavy duty 1 1 8 top dimension spindle shaft cast housing taper roller bearing low maintenance with top access grease fitting and grease overfill relief poppet Spindle Pulleys Split Steel with easily removed taper hubs Cutter Deck Belts B section with Kevlar cord Anti Scalp Rollers Two front two rear 4 1 2 adjustable two rear 12 fixed ADDITIONAL SPE
8. 2004 POWER EQUIPMENT lt gt MODEL STT 31BSD THIS MANUAL CONTAINS THE OPERATING INSTRUCTIONS AND SAFETY INFORMA TION FOR YOUR SCAG MOWER READING THIS MANUAL CAN PROVIDE YOU WITH ASSISTANCE IN MAINTENANCE AND AD JUSTMENT PROCEDURES TO KEEP YOUR MOWER PERFORMING TO MAXIMUM EFFI CIENCY THE SPECIFIC MODELS THAT THIS BOOK COVERS ARE CONTAINED ON THE INSIDE COVER BEFORE OPERATING YOUR MACHINE PLEASE READ ALL THE INFOR MATION ENCLOSED SCAG POWER EQUIPMENT DIVISION OF METALCRAFT OF MAYVILLE INC PART NO 03153 PRINTED 10 04 PRINTED IN USA WARNING FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY Keep all shields in place especially the grass discharge chute Before performing any maintenance or service stop the machine and remove the spark plug wires and ignition key Ifa mechanism becomes clogged stop the engine before cleaning Keep hands feet and clothing away from power driven parts Read this manual completely as well as other manuals that came with your mower Keep others off the tractor only one person at a time REMEMBER YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR Hazard control and accident prevention are dependent upon the awareness concern prudence and proper training of the personnel involved in the operation transport maintenance and storage of the equipment This manual covers the operating instructions and illustra
9. 482290 START DRIVE PROCEDURE Engage parking brake Disengage mower deck drive Move control handles IMPORTANT ADJUSTMENT PROCEDURES to neutral Lock position Stort engine ReLeose porking brake Select forward or reverse with hurdo control handles N WARNING AVOID SERIOUS INJURY DEATH Read the Operator s Manual Operate only on slopes you can back up If machine stops going uphill stop blades and back down slowly Avoid sudden turns Do not mow when children or others are around Never carry children even with blades off Look down and behind before and while backing Keep safety devices guards shields switches etc in place and working Remove objects that could be thrown by the bLades ANWARNING SERIOUS INJURY OR DEATH M Y RESULT FROM MACHINE ROLLOVER Fallure to follow these Instructions could result In senlous Injury death Do not operate machine on steep slopes on nean drop offs Avold sharp and or quick turns Do not exceed the machine weight rating of the ROPS Always use seat belt Do not Jump If machine tips ROPS Is foldable Always keep ROPS fully extended WHEN ROPS MUST BE DOWN Do not use the seat belt Drive with extra care If equiped with seat platform Do not operate machine without seat platform pin In place 286304500 READ OPERATOR S MAN
10. Lockwasher 10 Spring Nut 10 Ring Isolator Nut Elastic Stop 3 8 16 Nut Elastic Stop 10 32 Lockwasher 5 16 Spring Muffler Clamp 1 1 2 Dia 51 BRAKE AND STEERING COMPONENTS 22 TO RH PUMP 4 TO LH 37 STT2002B amp SC 70 32 52 BRAKE AND STEERING COMPONENTS Ref Part No No Q gt Q N 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 482340 461386 04001 32 04030 04 04041 07 422372 451483 451484 04001 17 04021 10 04001 45 04021 09 423488 48224 43607 04069 01 04001 13 04021 13 461601 461602 04003 04 43600 04003 12 04019 03 04050 01 43602 45918 04003 02 04040 14 04021 08 43477 481389 04060 01 04061 06 482586 04020 25 481767 04020 26 482585 04021 10 482794 04001 31 48114 04 461082 481548 Description Grip Handle Bar Handle Bar Includes item 1 Bolt Hex Head 3 8 16 x 1 1 4 Lockwasher 3 8 Flatwasher 3 8 391 x 938 x 105 Bar Control Lever Control Lever Weldment LH Control Lever Weldment RH Bolt Hex Head 5 16 18 x 2 Nut Hex Elastic Stop 5 16 18 Bolt Hex Head 3 8 16 x 2 Nut Hex Elastic Stop Mount Control Linkage Ball Bearings Neutral Return Spacer Pin Rue Cotter 3 8 Dia Bolt Hex Head 5 16 18 x 2 75 Zinc Nut Hex Elastic Stop 5 8 11 Bracket Control Lever LH Bracket Control Lever RH Bolt Carriage
11. Neutral Adjustment Be sure the dump valve levers are in the run position and the steering control levers are in the neutral lock position With an operator in the seat start the engine and disengage the parking brake Run the engine at full operating speed and check if the machine creeps forward or backwards LOOSEN HERE ADJUST HERE 2KBSGRHCRA Figure 6 3 RH Steering Control Rod Adjustment 23 Adjust RH wheel by loosening the jam nuts the steering control rod and turning the rod until the drive wheel turns in the forward direction Turn the rod back until the drive wheel stops moving Turn the rod an additional 1 2 turn See Figure 6 3 Tighten the jam nuts and repeat for the LH wheel See Figure 6 4 Actuate the steering control levers forward and reverse several times and return them to the neutral position Check that the drive wheels remained in neutral and readjust if necessary Check that the steering control levers hit the stop before the pumps reach full stroke Adjust as needed LOOSEN 39080147 1 LOOSEN HERE Sa AN L7 U ADJUST HERE 2KBSGLHCRA Figure 6 4 LH Steering Control Rod Adjustment Section 6 Tracking Adjustment Stop engine and remove key from ignition before making any adjustments Wait for all moving parts to come to a complete stop before beginning work AXCAUTION The engine and d
12. pull the left steering lever back The further the lever is pulled back the quicker the mower will turn left To steer the mower right while traveling forward pull the right steering control lever back The further the lever is pulled back the quicker the mower will turn right NOTE Smooth operation of the steering levers will produce smooth mower operation While learning the operation of the steering controls keep the travel speed low IMPORTANT Do not travel forward over a curb The mower will hang up on the curb Raise the deck and travel backwards over the curb at a 45 degree angle see section 4 13 on Page 16 for cutter deck raising instructions Reverse Travel AXCAUTION Disengage power to the mower before backing up Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower AXCAUTION Before backing up observe the rear for persons and obstructions Clear the area before backing up Possible injury or property damage could occur To travel in reverse pull both handles back Keep the travel speed low while traveling in reverse 15 NOTE The mower may not travel straight in reverse Slight adjustments may need to be made using the steering controls To steer left while traveling in reverse allow the left steering control lever to move forward The further the control is allowed to move forward the quicker the mower will turn l
13. 2 Change the engine oil and oil filter after the first 5 hours of operation See Section 7 4 3 Check hydraulic oil level in reservoir See Section 7 3 4 Check for loose hardware Tighten as needed 5 Check interlock system for proper operation See Section 4 2 6 Check tire pressure Adjust pressure if necessary See Section 7 10 4 4 STARTING THE ENGINE CAUTION DO NOT USE STARTING FLUIDS Use of starting fluids in the air intake system may be potentially explosive or cause a runaway engine condition that could result in engine damage and or personal injury Before initial start or after running out of fuel you must prime the fuel pump located on the right side of the engine Pump the primer pump until it can no longer be depressed Be sure the fuel shutoff valve located behind the operator s seat is completely open See Section 7 5 Page 30 Sit in the operator s seat fasten seat belt and place the steering control levers in the neutral position Engage the parking brake Place the PTO switch in the disengaged position 14 Section 4 Move the engine throttle control to about half engine speed Turn the ignition key to the on position until the yellow indicator for the glow plugs goes out Then turn the ignition key to the START position and release the key as soon as the engine starts Do not hold the key in the START position for more than 15 seconds at a time Allow at least 60
14. 5 16 18 x 1 Spacer Bearing Bolt Carriage 5 16 18 x 3 4 Nut Hex Serrated Flange 5 16 18 Ring Retaining 5 8 External E Spacer Bracket Neutral Return Bolt Carriage 1 4 20 x 3 4 Flatwasher 1 4 312 x 750 x 065 Nut Hex Elastic Stop 1 4 20 Pin Retaining Spring Spring Roll Pin Spring 5 32 x 3 4 Pin Cotter 9 16 x 1 1 2 Rod End Male 3 8 24 RH Thread Nut 3 8 24 RH Thread Tube Control Link Nut Hex 3 8 24 LH Thread Rod End Male 3 8 24 LH Thread Locknut 5 16 18 Elastic Stop Gas Damper Bolt Hex Head 3 8 16 x 2 1 2 Grease Fitting Lever Parking Brake Includes item 43 Grip Parking Brake 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 No No 04001 22 04019 04 48343 04 04064 02 04061 02 04004 34 48544 48796 04001 08 04001 147 481637 04010 12 461471 461472 45953 48807 04001 163 04021 19 04001 52 481787 04001 12 481601 04064 16 43063 461438 04063 25 481850 481851 481852 04028 02 48680 422373 04001 20 423279 423491 04017 16 04003 36 04001 19 481638 04001 168 Description Bolt Hex Head 3 8 16 x 2 3 4 Nut Hex Serrated Flange 3 8 16 Clevis Traction Control Pin Clevis 3 8 16 x 1 1 16 Pin Cotter 3 32 x 75 Rod Parking Brake Rod End LH Thread Bushing Self Align Bolt Hex Head 5 16 18 x 3 4 Bolt Hex Hd 3 8 24 x 5 1 4 23 4 Thr
15. 8 Flat Washer 3 8 Grade 8 Spring Bearing Pivot Idler Short Bolt Hex Head 3 8 16 x 2 3 4 Key 1 4 x 1 4 x 1 Bolt Hex Head 5 16 18 x 1 00 Idler Arm Pulley Pump Idler Spacer Ref Part No No 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 04001 138 04030 04 04020 04 04021 05 43604 04001 62 04021 10 04001 49 04030 03 422684 481284 04019 03 04001 19 48030 09 04003 12 482438 43296 43297 481025 481035 481022 43312 48114 04 48677 43644 481024 43534 04012 08 04021 05 04001 21 Description Bolt Hex Head 3 8 16 x 3 75 Grade 8 Lock Washer 3 8 638 x 380 x 094 Nut 3 8 16 Nut Elastic 3 8 16 Pivot Idler Long Bolt Hex Head 3 8 16 x 3 1 4 Nut Elastic 5 16 18 Bolt Hex Head 5 16 18 x 3 00 Lock Washer 5 16 Brace Engine Mounting Plate Bumper Rubber Nut Serr 5 16 18 Bolt Hex Head 3 8 16 x 1 00 Clamp Wire Bolt Carr 5 16 18 x 75 Driveshaft Spacer Inside Bushing Seal 2 00 OD x 1 625 Bore Nut 1 06 18 Roller Bearing Assembly Spacer Outside Grease Fitting 1 4 28 Self Tapping Relief Fitting Spindle Housing Seal 2 00 OD x 1 5 Bore Shaft Spindle Screw Set 3 8 16 x 3 8 Nut Center Lock 3 8 16 Bolt Hex Head 3 8 16 x 1 3 4 49 STT BSD 2002EAP 50 RADIATOR amp ENGINE BRACKETS
16. AID EXTERNAL CONTACT Flush with water EYES Flush with water for at least 15 minutes and get medical attention immediately INTERNAL Drink large quantities of water Follow with Milk Of Magnesia beaten egg or vegetable oil Get medical attention immediately In case of internal contact DO NOT give fluids that would induce vomiting B Charging the Battery Refer to the battery charger s manual for specific instructions Under normal conditions the engine s alternator will have no problem keeping a charge on the battery If the battery has been completely discharged for a long period of time the alternator may not be able to recharge the battery and a battery charger will be required DO NOT charge a frozen battery It may explode and cause injury Let the battery warm before attaching a charger Whenever possible remove the battery from the mower before charging and make sure the electrolyte covers the plates in all cells WARNING BATTERIES PRODUCE EXPLOSIVE GASES Charge the battery in a well ventilated space so gases produced while charging can dissipate 34 Charging rates between 3 and 50 amperes are satisfactory if excessive gassing or spewing of electrolyte does not occur or the battery does not feel excessively hot over 125 F If spewing or gassing occurs or the temperature exceeds 125 the charging rate must be reduced or temporarily stopped to permit cooling C Jum
17. Blade Sharpening WARNING Always wear proper hand and eye protection 2 Check the balance of the blade If the blades are out when working with cutter blades of balance vibration and premature wear can occur See your authorized Scag dealer for blade balancing or special tools if you choose to balance your own blades 3 Check the cutter blades for straightness If the cutter blades appear bent they will need to be replaced C Blade Replacement A WARNING WARNING Do not attempt to straighten a bent blade and never weld a broken or cracked blade Always replace it with a new blade to assure safety Always wear proper hand and eye protection when working with cutter blades 1 Remove the ignition key before replacing the blades 4 Ifablade cutting edge is dull or nicked it should be sharpened Remove the blades for sharpening See Blade Replacement 2 Raise the mower deck to the highest position Place the lanyard pin in the highest cutting height positon to NOTE prevent the cutter deck from falling Keep the blades sharp Cutting with dull blades not only yields a poor mowing job but slows the cutting speed of the mower and causes extra wear on the engine and the blade drive by pulling hard 35 Secure the cutter blades to prevent them from rotating use the optional Blade Buddy tool P N 9212 to assist in securing the cutter blades remove the nut from the blade attaching bolt R
18. DUMP VALVE CONTROL 7 Oil Pressure Figure 4 1 Indicates engine oil pressure Reference the engine operator s manual for further information 8 Hourmeter Figure 4 1 Indicates the number of hours the engine has been operated It operates 39050141858 whenever engine 15 running It be used Figure 4 2 Dump Valve Control keep track of maintenance intervals and the amount of time required to perform various tasks 16 Cutting Height Adjustment Figure 4 1 Used to set the cutter deck at the desired cutting height 9 Fuse Holders Figure 4 1 There are two 20 amp fuses and one 40 amp fuse that protect the 17 Deck Release Lever Figure 4 1 Used to lock mower s electrical system To replace fuses pull the cutter deck in the transport position Push the fuse out of the socket and install a new fuse foot pedal forward and lift up on the release lever to release the cutter deck for normal mowing 10 Left Steering Control Figure 4 1 Used to control the mower s left wheel when traveling 18 Temperature Gauge Figure 4 1 Indicates the forward or reverse operating temperature of the engine 11 Right Steering Control Figure 4 1 Used to 19 Seat Belt Figure 4 1 Used to secure the control the mower s right wheel when traveling operator Seat belt must be worn at all times during forward or reverse operation 12 Parking Brake Control Figure 4 1 Used to 4 2 SAFETY INTERLOCK SYSTEM engage and disengage the par
19. Drive Shaft Q Q N WV Chassis Grease Mobilix 2 found at Mobil Service Stations Ronex MP found at Exxon Service Stations Super Lube 2 amp Super Stay M 2 found at Conoco Stations Shell Alvania 2 found at Shell Service Stations Lidok 2 found at industrial shops Compatible Greases 29 Section 7 5 Figure 7 1 Lubrication Fitting Points GREASE FITTING LUBRICATION 224 4 Z 7 3 rp AX 2 30 Section 7 7 3 HYDRAULIC SYSTEM A Checking Hydraulic Oil Level The hydraulic oil level should be checked after the first 10 hours of operation Thereafter check the oil after every 200 hours of machine operation or monthly whichever occurs first IMPORTANT If the oil level is consistently low check for leaks and correct immediately Wipe dirt and contaminants from around the reservoir cap Remove the cap from the hydraulic oil reservoir Visually check the level of hydraulic oil Hydraulic oil must be at least 3 inches from top of the filler neck If the level cannot be determined visually use clean tape measure to check the level If the fluid is low 20W50 motor oil DO NOT overfill overfilling the oil reservoir may cause oil seepage around the cap area Clean the fill cap and install it onto the reservoir Hydraulic Oil Reservoir STT99HOR 1 Figure 7 2 Hydraulic Oil Reservoir 3
20. Hydraulic Oil Filter Element PIETER DRAIN PLUG Figure 7 4 Engine Dipstick Filter Oil Drain The hydraulic oil filter should be changed after every 500 hours of operation or annually whichever occurs first A Checking Engine Crankcase Oil Level 1 Remove oil filter element Figure 7 3 and properly discard it Fill the new filter with clean oil The engine oil level should be checked after every 8 hours and install the filter Hand tighten only of operation or daily as instructed in the Engine Operator s Manual furnished with this mower See Figure 7 4 2 Run the engine at idle speed with the speed control lever in neutral for five minutes B Changing Engine Crankcase Oil 3 Check the oil level in the hydraulic tank It must be After the first 5 hours of operation change the engine 3 inches from the top of the filler neck If crankcase oil and replace the oil filter Thereafter change necessary add SAE 20W50 motor oil the engine crankcase oil after every 100 hours of operation or bi weekly whichever occurs first Refer to the Engine Operator s Manual furnished with this mower for instructions See Figure 7 4 C Changing Engine Oil Filter After the first 5 hours of operation replace the engine oil filter Thereafter replace the oil filter after every 200 hours of operation or every month whichever occurs first Refer to Engine Operator s Manual for instructions See Figure 7 4 32 Section 7
21. PTO clutch brake 2 Disengage the cutter blades follow the following steps A Start and run the engine at approximately 3 4 3 Slow the engine to idle speed throttle 4 Engage the parking brake B Engage and disengage the PTO approximately 25 times waiting for 10 5 Turn the ignition key to the OFF position and remove seconds between each on off cycle the key NOTE 4 9 AFTER OPERATION Burnishing the electric clutch improves longevity and performance and should be done on every new machine and after a clutch Wash the entire mower after each use Do not use replacement The burnishing procedure should high pressure spray or direct the spray onto electrical not be performed while cutting grass components 4 7 HILLSIDE OPERATION IMPORTANT Do not wash a hot or running engine Cold water will damage the engine Use compressed air to clean the engine if it is hot AWARNING DO NOT operate on steep slopes To check a slope attempt to back up it with the cutter deck down 2 Keep the entire mower clean to inhibit serious heat damage to the engine or hydraulic oil circuit If the machine can back up the slope without the wheels slipping reduce speed and use extreme 3 Check the drive belts for proper alignment and any caution ALWAYS FOLLOW OSHA APPROVED signs of wear Correct and adjust if necessary AXDANGER OPERATION 1 The mower has been designed for good traction and stability under normal mowing condi
22. seconds between each cranking attempt to prevent overheating of the starter motor Prolonged cranking can damage the starter motor and shorten battery life Allow engine to warm before operating the mower 4 5 GROUND TRAVEL AND STEERING IMPORTANT If you are not familiar with the operation of a machine with lever steering and or hydrostatic transmissions the steering and ground speed operations should be learned and practiced in an open area away from buildings fences or obstructions Practice until you are comfortable with the handling of the machine before attempting to mow Learn the operation on flat ground before operating on slopes IMPORTANT Start practicing with a slow engine speed and slow forward travel Learn to feather the steering controls to obtain a smooth operating action Practice operating the mower until you are comfortable with the controls before proceeding to mow Forward Travel To travel forward with the mower disengage the parking brake and slowly push the steering control levers forward an equal distance The further the steering control levers are pushed forward the greater the forward speed will be To increase the speed push the steering control levers further forward and to decrease the speed pull the steering control levers back Section 4 To stop the forward travel pull the steering control levers back to the neutral position To steer the mower left while traveling forward
23. should be flushed and the coolant replaced every 500 hours of op A WARNING eration or annually See your Scag dealer for proper coolant replacement To avoid burns always allow the engine to cool before removing the radiator cap B Cleaning the Radiator Debris Screen After each day of operation remove and clean the A Checking Coolant Level The coolant level should checked before each day operation avoid personal injury always wear safety 1 Remove radiator cap by turning it slowly glasses when using compressed air counterclockwise to the first stop and allow any pressure to be released Push down on the cap and turn counterclockwise to remove 1 Pull the debris screen up to remove 2 Clean the debris screen with compressed air or a water hose 37 SCAG Section 7 NOTE Check the radiator for excessive debris and clean with compressed air Never spray a hot engine with water use only compressed air to remove debris 3 Re install the debris screen to the radiator C Checking The Fan Belt Tension Periodically check the fan belt tension The belt should deflect 1 2 with 10 pounds of pressure See your Scag dealer if the belt is in need of adjustment or replacement 7 13 BODY DECK AND UPHOLSTERY AXCAUTION Do not wash any portion of the equipment while it is hot Do not wash the engine use compressed air 1 Afte
24. warranty does not cover any mower that has been subject to misuse neglect negligence or accident or that has been operated in any way contrary to the operating instructions as specified in the Operator s Manual The warranty does not apply to any damage to the mower that is the result of improper maintenance or to any mower or parts that have not been assembled or installed as specified in the Operator s Manual and Assembly Manual The warranty does not cover any mower that has been altered or modified changing performance or durability In addition the warranty does not extend to repairs made necessary by normal wear or by the use of parts or accessories which in the reasonable judgment of Scag are either incompatible with the Scag mower or adversely affect its operation performance or durability Scag Power Equipment reserves the right to change or improve the design of any mower without assuming any obliga tion to modify any mower previously manufactured All other implied warranties are limited in duration to the two 2 year warranty period or ninety 90 days for mowers used for rental purpose Accordingly any such implied warranties including merchantability fitness for a particular purpose or otherwise are disclaimed in their entirety after the expiration of the appropriate two year or ninety day warranty period Scag s obligation under this warranty is strictly and exclusively limited to the repair or replacement of defective part
25. 1 B Changing Hydraulic Oil The hydraulic oil should be changed after every 500 hours or annually whichever occurs first The oil should also be changed if the color of the fluid has become black or milky A black color and or a rancid odor usually indicates possible overheating of the oil and a milky color usually indicates water in the hydraulic oil NOTE The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil Park the mower on a level surface and stop the engine Place a suitable container under the hydraulic oil reservoir Remove the fill cap from the reservoir Remove the drain plug from the bottom of the reservoir See Figure 7 2 Allow the fluid to drain into the container and properly discard it Re install the drain plug into the reservoir and be sure it is tight NOTE Before efling the hydraulic oil reservoir the hydraulic oil filter should be changed as outlined in section C on the next page Fill the reservoir to 3 inches from the top of the filler neck with 20W50 motor oil Replace the reservoir fill cap Start the engine and drive forward and backward for two minutes Check the oil level in the reservoir If necessary add oil to the reservoir SCAG Section 7 7 4 ENGINE OIL HYDRAULIC OIL FILTER Vd 390S0155 1 ENGINE _ DIPSTICK Figure 7 3 Hydraulic Oil Filter STT BSD2001EOF ENGINE OIL C Changing
26. 1 423463 04014 03 481547 48540 04001 20 04019 04 04050 10 04001 74 04003 04 04009 02 Description Flatwasher 3 8 Link Deck Lift Rod End Female 1 2 20 RH Rod End Female 1 2 20 LH Nut Jam 1 2 20 RH Nut Jam 1 2 20 LH Nut 3 8 16 Elastic Stop Slide Weldment Height Adjustment Spacer Decklift Pedal Pin Decklift Swivel Joint LH Swivel Joint RH Bellcrank Weldment LH Rear Bellcrank Weldment RH Rear Locknut 3 8 16 Center Lock Guide Short Guide Long Lockplate Decklift Latch Includes items 208 21 Bushing 502 1 0 Grip Deck Latch Spring Helper 61 8 72 Cutter Decks Only Foot Pedal Height Adjustment Nut Hex 5 8 11 Nut Hex Serrated Flange 5 16 18 Flatwasher 5 8 656 x 1 312 x 095 Flatwasher 1 1 062 x 1 50 x 048 Grease Fitting Cotter Pin 3 16 x 1 Nut Hex Elastic Stop 5 16 18 Stud 5 8 11 x 22 0 Ring Pin 1 2 x 3 30 Ring Retaining 1 External E Nut Hex Elastic Stop 1 2 13 Bolt Carriage 3 8 16 x 1 1 4 Bracket Cutting Height Adjustment Screw Cap 5 16 18 x 3 FHHS Lanyard Deck Height Pin Chain Bolt Hex Head 3 8 16 x 1 1 2 Nut Hex Serrated Flange 3 8 16 Ring Retaining 1 2 External E Bolt Hex Head 1 2 13 x 3 Bolt Carriage 5 16 18 x 1 Bolt Shoulder 1 2 x 3 4 43 SHEET METAL COMPONENTS Suspension Seat STT BSG 2005 SMC 44 SHEET METAL COMPONENTS No cO O OQ G
27. 1A RH Extention Weldment Caster 72A LH Extention Weldment Caster 72A RH Seal 2 00 OD x 1 625 Bore Nut Hex Elastic Stop 1 2 13 Yoke Weldment Caster 61A amp 72A Bolt Hex Head 1 2 13 x 9 1 2 61 amp 72A Sleeve Caster Wheel 61A 72A Wheel Assy Inc items 20 42 43 54 55 Ref No 42 43 44 45 46 47 48 49 50 Part No 482619 482620 41020 481284 48566 04001 59 04019 02 482942 461447 461448 461449 461450 482940 482943 482948 482950 482945 482946 482621 48114 07 424106 482941 04001 01 04001 145 481825 04001 71 423419 423624 04040 13 482952 482944 482948 04021 08 9240 423674 04001 01 Description Tire 13 x 6 50 4 Ply 61A 72A Rim Assembly 61A 8 72A Inc item 55 Weight 61 cutter deck only Bumper Rubber Cable Seat Stop Bolt Hex Head 1 4 20 x 1 1 4 Nut Hex Serrated Flange 1 4 20 Shock Absorber Kit Caster Wheel Assy Inc 31 thru 43 61A LH Caster Wheel Assy Inc 31 thru 43 61A RH Caster Wheel Assy Inc 31 thru 43 72 LH Caster Wheel Assy Inc 31 thru 43 72 RH Back Cusion Kit Lumbar Kit Knob Kit Armrest Only Armrest Assembly Kit LH Armrest Assembly Kit RH Bearing w Race Grease Fitting Seat Stop Seat Cusion Kit Seat Drain Kit Included with Seat Cusion Bolt Hex Head 1 4 20 x 3 4 Bolt Hex Head 1 2 13 x 3 5 Footrest Bolt Hex Head 1 2 13 x 1 5 Mounting Bracket Battery Suppor
28. 23958 482295 43590 04003 23 Description Nut Special 1 1 16 18 Grease Fitting Relief Fitting Tapered Spindle Spring Discharge Chute Guide Roller Cutter Blade 21 0 61 Cutter Blade 24 5 72 Gearbox Assembly Deck Drive Belt Cutter Deck Drive 61 Belt Cutter Deck Drive 72 Roller Shaft Tapered Hub 1 1 8 Bore Tapered Hub 1 Bore Idler Arm Cutter Deck Bearings Ball Pulley Idler Base Idler Pivot Pulley 6 35 O D 61 Pulley 6 95 O D 72 Mounting Plate Gearbox Belt Cover 61 Belt Cover LH 72 Belt Cover RH 72 Pusharm includes items 44 63 amp 64 Baffle Custom Cut 61A Baffle Custom Cut 72A Nut Hex Head 5 8 18 UNF Rod End 5 8 Male RH Thread Bolt Hex Head 5 8 11 x 4 1 2 Spring Cutter Deck Pulley 6 75 O D 61 Pulley 6 35 O D 72 U Nut 3 8 16 Nut Hex Elastic Stop 5 8 11 Discharge Baffle 61 Discharge Baffle 72 Guide Roller Spacer Spindle Bolt Carriage 3 8 16 x 1 41 SCA 5 CUTTER DECK CONTROLS STT2002CDC CUTTER DECK 42 CUTTER DECK CONTROLS Ref No OQ Part No 04041 07 481764 481765 481766 04020 27 04020 28 04021 09 482429 43391 43487 43526 43527 45904 45905 04021 05 422381 423509 422346 46975 48100 14 481428 481598 422451 04020 09 04019 03 04040 09 04041 14 48114 04 04061 07 04021 10 04004 44 04067 05 04050 08 04021 07 04003 1
29. 24 04012 04 25 481884 26 04001 172 27 04063 27 28 481461 29 481460 30 04063 11 31 04001 101 32 04030 05 33 04041 28 34 04001 109 35 04021 09 36 04041 07 37 04063 20 38 461079 39 04001 46 40 04019 04 41 48181 42 04001 136 43 04043 04 44 481522 45 48224 46 43576 47 04001 145 48 04063 20 49 04001 09 50 461015 51 48198 52 43277 OQ GQ N Description Belt Guard Rear Hinge Rear Belt Guard Latch Hood Carr Bolt 1 4 20 x 5 Nut Serr Flg 1 4 20 Screw 10 32 x 5 Phillips Head Lock Washer 10 Nut 10 32 Weldment Pump Mounting Spacer Engine Stud Anti Rotation Linkage Assembly Anti Rotation Tie Cable Pin Rue Bolt Hex Head 3 8 16 x 1 50 Spindle Assembly Deck Drive Clutch Electric PTO Pulley 6 35 dia Tapered Bore Hub Tapered 1 dia Key 1 4 x 1 4 x 1 5 Bolt Hex Head 5 16 18 x 1 1 2 Grade 8 Pulley 6 25 OD Tapered Pulley 5 45 OD Set Screw 5 16 18 x 375 Hub Tapered 17mm Bore Bolt Hex Head 1 4 20 x 1 Grade 8 Key 5mm x 5mm x 30mm Belt Pump Drive Belt Deck Drive Key 1 4 x 1 4 x 2 5 Bolt Hex Head 7 16 20 x 2 5 Lock Washer 7 16 Flat Washer 7 16 x 469 x 1 75 x 25 Bolt Hex Head 1 4 20 x 1 375 Nut Elastic Stop 3 8 16 Flat Washer 3 8 391 x 938 x 105 Key 1 4 x 1 4 x 1 00 Idler Arm Bolt Hex Head 3 8 16 x 2 25 Nut Serr Flg 3 8 16 Pulley PTO Idler Bolt Hex Head 3 8 16 x 1 5 Grade
30. 4 Belt Adjustment 65 Belt Alignment 6 6 Cutter Deck Adjustments Section 7 Maintenance 71 Maintenance Chart 7 2 Lubrication Fitting Points 7 3 Hydraulic System 74 Engine Oil 7 5 Engine Fuel System 7 6 Engine Air Cleaner 77 Battery 7 8 Drive Belts 7 9 7 10 711 Cutter Deck Gearbox 7 12 Cooling System 7 13 Deck Hopper and Upholstery Section 8 Illustrated Parts List SMST 61 Adv 72 Adv Cutter Decks Cutter Deck Controls Sheet Metal Components STT Roll Over Protection Deck Drive Components Radiator Coolers amp Engine Brackets Brake amp Steering Components Fuel amp Hydraulic System Electrical System Hydraulic Pump Assembly BDP 21L Wire Harness STT 31BSD Replacement Decals Warranty Statement Section 1 GENERAL INFORMATION 1 1 INTRODUCTION Your mower was built to the highest standards in the industry However the prolonged life and maximum efficiency of your mower depends on you following the operating maintenance and adjustment instructions in this manual If additional information or service is needed contact your Scag Power Equipment Dealer We encourage you to contact your dealer for repairs All Scag dealers are informed of the latest methods to service this equipment and provide prompt and efficient service in the field or at their service shop They carry a full line of Scag service parts USE OF OTHER THAN ORIGINAL SCAG REPLACEMENT PARTS WILL VOID THE WARRAN
31. 7 6 Check lubricant in cutter deck gearbox See paragraph 7 11 Perform these maintenance procedures more frequently under extreme dusty or dirty conditions 28 Section 7 MAINTENANCE CHART RECOMMENDED SERVICE INTERVALS CONT D Break In First 10 8 40 Procedure Apply grease to fittings Comments See paragraph 7 2 Check hardware for tightness Change engine oil filter See paragraph 7 4 Check hydraulic oil level Replace engine fuel filter See paragraph 7 3 See paragraph 7 5 Drain hydraulic system and replace hydraulic oil See paragraph 7 3 Use SAE 20W50 Motor Oil Replace hydraulic oil filter See paragraph 7 3 Replace cutter deck gearbox lubricant See paragraph 7 1 Change coolant See paragraph 7 12 7 2 LUBRICATION GREASE FITTING LUBRICATION CHART SEE FIGURE 7 1 LUBRICATION INTERVAL 500 Hours Yearly 100 Hours Bi Weekly 200 Hours Monthly 40 Hours Weekly 100 Hours Bi Weekly 40 Hours Weekly 40 Hours Weekly 200 Hours Monthly 40 Hours Weekly NO OF LOCATION PLACES Caster Wheel Pivot Caster Wheel Bearings LUBRICANT Chassis Grease Chassis Grease Brake Actuator Cutter Deck Bellcranks Chassis Grease Chassis Grease Chassis Grease Lithium MP White Grease 2125 Lithium MP White Grease 2125 Chassis Grease Cutter Deck Pusharms PTO Spindle Cutter Deck Spindle Brake Handle Cutter Deck
32. 8 HG 9004100 1430 O Ring 9 70402 Charge Relief Valve Kit 10 HG 9007200 3116 Socket Head Screw 11 HG 2510027 Check Valve Kit Includes Check Plug Spring O Ring Orifice Check Valve 12 HG 2513030 Bypass Valve Kit Includes Bypass Valve O Ring Back up Ring 13 HG 50619 Valve Plate 14 HG 70080 Cylinder Block Kit 15 50574 Trunion Seal Retaining Ring 16 2510073 Overhaul Kit 17 HG 50552 Roller Thrust Bearing 18 HG 50203 Swash Plate 19 HG 2000014 Trunnion Arm 20 HG 2000015 Guide Slot 21 HG 2000025 Block Spring 22 HG 2000037 Lip Seal 23 50601 Pump Shaft 24 2000032 Ball Bearing 25 2000038 Retaining Ring 26 HG 51092 Lip Seal 27 2000038 Retaining Ring 28 2000023 Spacer 59 WIRE HARNESS STT 31BSD PART NUMBER 483057 LH NEUTRAL GRN STRIPE 11 6RN 14 L3 11 RED 14 64 PINK 8 aN TE WHT W RED STRIPE MODULE PLUG BLK BRAKE INTERLOCK SEATSWITCH 20 FUSE POS VOLTMETER volere m H KEYSWITCH xa GROUND STARTER STARTER SOLENOID BLK ea OK s e ALTERNATOR RED 1 of o CN aK s
33. BSD Decals 2 62 LIMITED WARRANTY COMMERCIAL EQUIPMENT part of the Scag commercial mower manufactured by Scag Power Equipment and found in the reasonable judgment of Scag to be defective in materials or workmanship will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts and labor This warranty is limited to the original purchaser and is not transferable Proof of purchase will be required by the dealer to substantiate any warranty claims All warranty work must be performed by an Authorized Scag Service Dealer This warranty is limited to the following specified periods from the date of the original retail purchase for defects in materials or workmanship Wear items including drive belts blades hydraulic hoses and tires are warranted for ninety 90 days Batteries are covered for ninety 90 days Frame and structural components including oil reservoir fittings and oil coolers are warranted for 2 years Parts and labor Ist year Parts only 2nd year Cutter decks are warranted against cracking for a period of three 3 years Parts and labor Ist year Parts only 2nd and 3rd year The repair or replacement of the cutter deck will be at the option of Scag Power Equipment We reserve the right to request components for evaluation This warranty does not cover any mower that has been subject to misuse neglect negligence or accident or that has been operated in any way contrary to the op
34. CIFICATIONS Seat Thick padded seat cushions with special springs Padded arm rests lever adjustment forward and back APPROXIMATE DIMENSIONS 72 61 Length 92 0 89 5 Tracking Width 56 0 56 0 Width 83 0 73 0 Width with discharge chute up 73 0 63 0 Height 43 0 43 0 Turning Radius zero radius turning zero radious turning Weight 1635 168 1600 Ibs PRODUCTIVITY The following chart will aid you in determining how many acres your Scag mower will cut per day The chart is an estimate based on 8 hours per day cutting time at 7 MPH with an allowance for overlap and turns calculated in Cutting Width 61 Acres Per Day 27 Date of Issue October 2004 Specifications Subject To Change Without Notice 11 Section 4 OPERATING INSTRUCTIONS AXCAUTION Do not attempt to operate this mower unless you have read this manual Learn the location and purpose of all controls and instruments before you operate this mower 4 1 CONTROLS AND INSTRUMENT IDENTIFICATION Before operating the mower familiarize yourself with all mower and engine controls Knowing the location function and operation of these controls is important for safe and efficient operation of the mower 1 Ignition Switch Figure 4 1 The ignition switch is used to start the engine and has three positions OFF ON and START DECK LIFT Water Seperator Indicator Figure 4 1 Amber indicator turns on when the Water Sepera
35. NCE CONSIDERATIONS 8 STORAGE 12 Carefully release pressure from components with stored energy Use jack stands to support components when required 1 Never make adjustments to the machine with the engine running unless specifically instructed to do so A If the engine is running keep hands feet and WA R N N G n clothing away from moving parts Hydraulic fluid is under high pressure Keep body and hands away from pinholes or nozzles 2 Disengage drives lower implement set parking that eject hydraulic fluid under high pressure brake stop engine and remove key or disconnect If you need service on your hydraulic system spark plug wire to prevent accidental starting of the please see your authorized Scag dealer If engine when servicing or adjusting the machine hydraulic fluid is injected into the skin it must Wait for all movement to stop before adjusting be surgically removed within a few hours by a cleaning or repairing doctor or gangrene may result 3 Disconnect battery or remove spark plug wire before 13 Let the engine cool before storing making any repairs Disconnect the negative terminal first and the positive last Reconnect the 14 DO store the machine near open positive first and the negative last 15 Shut off fuel while storing or transporting 4 Keep all nuts bolts and screws tight to ensure machine is in safe working condition Check blade un mounting bolts frequ
36. NE AND DRIVE TRAIN COMPONENTS The detail servicing and repair of the engine hydraulic pumps and gearboxes are not covered in this manual only routine maintenance and general service instructions are provided For service of these components during the limited warranty period it is important to contact your Scag dealer or find a local authorized servicing agent of the component manufacturer Any unauthorized work done on these components during the warranty period may void your warranty ISO Symbols CE Mark Parking Spinning Blade P On Start Spring Tension on Idler Off Stop Falling Hazard Continuously Variable Linear Cutting Element Basic Symbol Pinch Point Cutting Element Engage Hourmeter Elapsed Operating Hours Cutting Element Disengage Thown Object Hazard Read Operator s Manual Keep Bystanders Away Section 2 SAFETY INFORMATION 2 1 INTRODUCTION Your mower is only as safe as the operator Carelessness or operator error may result in serious bodily injury or death Hazard control and accident prevention are dependent upon the awareness concern prudence and proper training of the personnel involved in the operation transport maintenance and storage of the equipment Make sure every operator is properly trained and thoroughly familiar with all of the controls before operating the mower The owner user can prevent and is responsible for
37. STALLED 17 SCAG Section 4 4 13 ADJUSTING CUTTING HEIGHT DECK RELEASE LEVER The mower deck can be adjusted from a height of 1 inch y to 6 inches at 1 4 inch intervals To adjust the cutting height 1 Push the cutting height adjustment foot pedal all the way forward using your right foot until it locks in place Figure 4 6 2 Insertthe lanyard pin into the cutting height index at the desired cutting height Push forward on the deck lift foot lever hold in place and lift up on the deck release lever Figure 4 7 Slowly release the foot pedal A deck height decal is located on the cutting height index as an aid in adjusting the deck to the desired height Figure 4 6 39050151 1 Figure 4 7 Deck Release Lever LANYARD HEIGHT ADJUSTMENT PEDAL 390S01 40 1 Figure 4 6 Adjusting Cutting Height 18 Section 5 TROUBLESHOOTING CUTTING CONDITIONS CONDITION CAUSE CURE Stringers Occasional Blades of Uncut Width of Deck 4 gt p Low engine RPM Run engine at full RPM Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull blades incorrect sharpening Sharpen blades Deck plugged grass accumulation Clean underside of deck Beltsslipping B SGB020 Streaking Strips of Uncut Grass in Cutting Path F Width of Deck 4 wo gt Streaking Strips of Uncut G
38. TY When ordering parts always give the model and serial number of your tractor The serial number plate is located where shown in Figure 1 1 SERIAL NUMBER PLATE LOCATION 390S0137A Figure 1 1 Tractor Serial Number Plate Location USE ONLY SCAG APPROVED ATTACHMENTS AND ACCESSORIES Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine Scag approved attachments and accessories GC STT p n 9049 9039 GC STT CS p n 9053 9041 Mulch Plate p n 9261 9262 Hurricane Mulch p n 9266 9267 Cup Holder p n 9240 STT Hitch p n 9242 STT Bumper p n 9256 STT Suspension Seat p n 9270 STT Lights p n 9279 Tiger Striper p n 9269 Blade Buddy p n 9212 AWARNING For pictorial clarity some illustrations and figures in this manual may show shields guards or plates open or removed Under no circumstances should your mower be operated without these devices in place All information is based upon product information available at the time of approval for printing Scag Power Equipment reserves the right to make changes at any time without notice and without incurring any obligation 1 2 DIRECTION REFERENCE The Right and Left Front and Rear of the machine are referenced from the operator s right and left when seated in the normal operating position and facing the forward travel direction 1 3 SERVICING THE ENGI
39. UAL FOR MORE DETAILS Check tire pressure Drive tires 12 psi Caster tires 25 psi NEUTRAL ADJUSTMENT Loosen jam nuts Rotate turnbuckLe With an operator in the seat engine running control Levers in neutral and the parking brake disengaged adjust control Linkage Loosen jam nuts If wheel rotates forward adjust turnbuckle CCW If wheel rotates rearward adjust turnbuckLe CW Adjust until drive wheel stops turning Tighten jam nuts Repeat for opposite side TRACKING ADJUSTMENT If the machine pulls to the right adjust LH control Linkage CCW to slow Left wheel If the machine pulls to the Left adjust RH control Linkage CCW to slow right wheel Readjust neutral if necessary FREE WHEEL OPERATION To move machine without running the engine rotate both dump valves Located at the LH side of the pumps CCW 1 2 turn to freewheel positions Return dump valves to original position to operate the mower Tighten to 7 10 Ft Lbs HYDRAULIC FLUID LEVEL Gearbox Lubricant SAE 80090 gear oil Check hydraulic fluid Level while fluid is cool Fluid Level should be 3 below top of filler neck Fill with SAE 20W50 motor oil only IMPORTANT DRIVESHAFT MAINTAINANCE Grease yokes 3 4 pumps Ever 200 P Do not overfill Room for Trained operators only 483046 hot fluid expansion must 7 be allowed resultin expansion may cause Leaks in t
40. Wheel Bracket Bolt Hex Serrated Flange 3 8 16 x 1 Flatwasher 5 8 688 x 1 75 x 134 Locknut 3 8 16 Center Lock Discharge Chute 61 amp 72 Adv Bolt Hex Head 5 16 18 x 1 75 Front Bolt Hex Head 5 16 18 x 1 50 Rear Nut Hex Elastic Stop 5 16 18 Nut 5 8 11 UNC Push Arm Shaft Bolt Hex Head 5 8 11 x 9 50 Bolt Carriage 5 16 18 x 75 Bolt Hex Head 5 16 18 x 4 75 Key 1 4 x 1 4 x 2 Key 1 4 x 1 4 x 1 25 Flatwasher 3 8 39 x 938 x 105 HD Bolt Hex Head 5 16 18 x 1 3 4 Grade 8 Nut Hex Serrated Flange 5 16 18 Bolt Hex Head 1 2 20 x 1 Grade 8 Bushing 376 1 0 Oilite Lockwasher 5 16 Flatwasher 5 16 375 x 875 x 083 Flatwasher 3 8 391 x 938 x 105 Nut Hex Elastic Stop 3 8 16 Bolt Hex Head 3 8 16 x 3 25 Bolt Hex Head 3 8 16 x 2 50 Pivot Idler Short Bolt Hex Head 3 8 16 x 1 50 Grade 8 Spindle Assembly Spindle Shaft Seal Top Bearing Assembly Spindle Housing Spacer Outside Spacer Inside Seal Bottom Spindle Bushing Bottom Ref Part No No 43 44 45 46 47 48 49 50 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 481035 48114 04 48677 482245 48038 482881 482882 482486 481558 481980 45944 48926 48141 461174 48224 482416 422713 482745 482747 422426 422413 422677 422708 461516 423792 423795 04020 16 48763 04001 79 481597 482746 482745 04110 03 04021 13 423957 4
41. accidents or injuries occuring to themselves other people or property READ THIS OPERATOR S MANUAL BEFORE ATTEMPTING TO START YOUR MOWER A replacement manual is available from your authorized Scag Service Dealer or by contacting Scag Power Equipment Service Department at P O Box 152 Mayville WI 53050 or via the Internet at www scag com The manual for your machine can be downloaded by using the model and serial number or use the contact form to make your request Please indicate the complete model and serial number of your Scag product when requesting replacement manuals 2 2 SIGNAL WORDS This symbol means Attention Become Alert Your Safety is Involved The symbol is used with the following signal words to attract your attention to safety messages found on the decals on the machine and throughout this manual The message that follows the symbol contains important information about safety To avoid injury and possible death carefully read the message Be sure to fully understand the causes of possible injury or death Signal Word It is a distinctive word found on the safety decals on the machine and throughout this manual that alerts the viewer to the existence and relative degree of the hazard DANGER The signal word DANGER denotes that an extremely hazardous situation exists on or near the machine that could result in high probability of death or irrepairable injury if proper precautions are not
42. authorized SCAG dealer Bent spindle area See your authorized SCAG dealer Dullblade Uneven ground Tire pressures not equal Sharpen blade May need to reduce ground speed raise cutting height and or change direction of cut Check and adjust tire pressure Wheels uneven Check and adjust tire pressure Deck mounted incorrectly See your authorized SCAG dealer Deck not level side to side 20 Check for level and correct Section 5 TROUBLESHOOTING CONT D CONDITION Scalping Blades Low tire pressures Check and adjust pressures Hitting Dirt or Cutting Very Close to Ground speed too fast Slow speed to adjust for conditions the Ground Cutting too low May need to reduce ground speed raise cutting height change direction of cut and or change pitch and level Rough terrain May need to reduce ground speed raise cutting height and or change direction of cut Ground speed too fast Slow speed to adjust for conditions I Width of Deck Wet grass EC 5 o a 5 gt 5 SGB022 Step Cut Ridge Blades not mounted evenly Cut grass after it has dried out Adjust pitch and level in Center of Replace blade Cutting path Bent blade liv View 4 Internalspindle failure See your authorized SCAG dealer UA NY Lf Mounting of spindle incorrect AV A UNA I Width of
43. by inch Cooler Oil Elbow 90 Degree 9 16 O ring x 3 8 Hose Elbow 90 Degree 3 4 O ring x 3 8 Hose Oil Filter Base Assembly 1 2 ID Tank to Filter Base Fuel Hose to Carb 1 4 ID order by inch Fuel Filter Purchase from Briggs amp Stratton Fuel Hose 1 4 ID order by inch Valve Shutoff Clamp Fuel Hose 5 16 ID Fuel Hose 5 16 ID order by inch Hose Fitting Bushing Bolt Hex Head 5 16 18 x1 0 Zinc Nut Serrated Flange 5 16 18 Oil Filter Tee 3 4 O ring x JIC x 1 2 Hose Nut Hex Elastic Stop 1 4 20 Cap Hydraulic Tank Insert Filler Neck O Ring Oil Reservoir Assembly includes 24 27 39 Elbow 90 Degree 9 16 18 JIC x 9 16 O Ring Hose Clamp 0 69 dia Hose 3 8 ID Pushlock order by inch Screw Phillips Head 1 4 20 Cap Fuel Tank Assembly includes items 23 amp 24 Clamp Hose Elbow 90 Degree 7 8 14 THD Bushing 7 8 14 JIC x 3 4 16 O Ring Ref Part No No 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 423701 04019 03 04003 02 482574 423513 423485 482516 48350 05 04001 59 04030 02 04060 06 482571 482573 422694 481793 481792 04021 09 04001 32 481819 482498 04021 09 04043 04 423524 423525 04001 08 48059 03 481179 481778 Description Support Bracket Fuel Tank Nut 5 16 18 Serrated Flange Bolt Carraige 1 4 20 x 3 4 Elbow 90 Degree Strap Hydraulic Tank Suppo
44. c PTO Module Interlock Battery not available through Scag Switch PTO Switch Key Includes Nut and Lockwasher Nut 5 8 32 Special Lock Washer 5 8 Cable Control Throttle Choke Switch Seat Gauge Water Temperature Gauge Oil Pressure Gauge Volts Panel Instrument Panel Bracket Fuse Holder Screw 10 32 x 1 5 Phillips Nut 10 32 Elastic Stop Fuse Holder w 20 Amp Fuse Fuse 20 Amp Harness Wiring Screw 10 32 x 5 Phillips Nut Hex 10 32 Lock Washer 10 Relay Bolt Hex Head 1 4 20 x 75 Lock Washer 1 4 Base Instrument Panel U Nut 1 4 20 Key amp Ring Assembly Sender Unit Water Temperature Switch Low Oil Pressure Sender Unit Oil Pressure Manifold Oil Hose Oil Pressure Sender Bolt Hex Head M8 1 25 x 14 Hour Meter Clamp Cable 5 ID Clamp Cable 75 ID Boot Positive Battery Terminal Washer Star Indicator Light Glow Plugs Indicator Light Water Separator Relay 40 Amp Fitting Oil Sender 45 Degree Fuse 40 Amp Fuse Holder Not Shown 57 HYDRAULIC PUMP ASSEMBLY BDP 21L 9 58 HYDRAULIC PUMP ASSEMBLY BDP 21L Ref Part No No Description 1 HG 2510065 Housing Kit Includes Housing Journal Bearing 2 HG 2510066 End Cap 3 HG 50641 Straight Headless Pin 4 50633 Socket Head Screw 5 HG 50381 End Cap Gasket 6 HG 2510071 Charge Pump Kit Includes Charge Cover Gerotor Assy O Ring 7 HG 50406 Gerotor Assembly
45. chine when measuring the front height Check the distance from the top of the cutter deck to the floor at the rear RH side of the cutter deck directly behind the cutter deck hanging chains Next check the distance from the top of the cutter deck to the floor at the front RH side of the cutter deck directly in front of the cutter deck hanging chains The measurement at the front of the cutter deck should be equal to the measurement at the rear of the deck Make these measurements at the LH side of the cutter deck also If the measurement at the front of the deck is not equal to the rear the cutter deck pitch must be adjusted as follows 1 Loosen the jam nuts on both adjusting rods See Figure 6 5 2 Using a wrench on the spring compression nut See Figure 6 5 turn the adjusting rods until the 1 4 forward pitch is obtained on both the RH and the LH side of the cutter deck Tighten both jam nuts NOTE To prevent the cutter deck from teetering all four cutter deck hanging chains must have tension on them If all four chains do not have tension on them and the deck teeters you must readjust the cutter deck as outlined in the procedures above Section 6 Cutter Deck Height The cutter deck height adjustment is made to ensure that the cutter deck is cutting at the height indicated on the cutting height index gauge To check for proper deck height be sure that the mower 15 on a flat level surface and the tires are properly in
46. d Switch Screw Hex SLTD WSHR Head 10 32 x 3 4 Brake Linkage LH Brake Linkage RH Bellcrank Brake Actuator Spring Bolt Hex Head 1 2 13 x 3 3 4 Locknut Hex 1 2 13 Center Lock Bolt Hex Head 1 2 13 x 2 1 2 Wheel Motor Ross Bolt Hex Head 5 16 18 x 1 75 Zinc Brake Band Assembly Pin Clevis 3 8 Dia x 1 93 Spacer Wheel Hub Brake Drum Assembly Key Woodruff 5 16 x 1 Wheel Assembly 24 x 12 12 Turf Master Rim W Valve Stem Tire 24 x 12 12 Turf Master Lug Nut 1 2 20 Nut Hex Castle Threaded Plate Bolt Hex Head 3 8 16 x 1 1 2 Plate Weldment Motor Backing Actuator Switch Bolt Hex Serrated Flange 5 16 18 x 3 4 Bolt Carriage 3 8 16 x 4 3 4 Bolt Hex Head 3 8 16 x 1 Switch Bolt Hex Head 3 8 16 x 1 1 4 Grade 8 53 FUEL AND HYDRAULIC SYSTEM 2 To Back Side of Reservoir 2002 STT BSD F amp HS eps 54 FUEL AND HYDRAULIC SYSTEM Ref Part No No 04110 01 48136 13 04001 03 48811 482505 482266 01 482266 02 482417 482563 10 48058 O O OQ 12 48058 13 481308 14 48059 04 15 481178 16 481312 17 48309 18 04001 09 19 04019 03 20 48758 21 482483 22 04021 08 23 481164 24 481507 25 48603 02 26 461451 27 482572 28 48136 13 29 48811 30 04010 10 31 48571 02 32 461452 33 48136 05 34 48350 05 35 48938 02 Description U Nut 1 4 20 Hose Clamp 0 69 dia Bolt Hex Head 1 4 20 x 2 0 Hose 3 8 ID Pushlock order
47. deck See Figure 6 9 The Advantage cutter deck will deliver the best quality of cut in very tall wiry tough to cut grass 3 1 2 Position factory setting baffle is installed using the middle set of holes on the front baffle welded inside the cutter deck See Figure 6 10 For general purpose cutting place the Custom Cut Baffle in the 3 1 2 position This gives the best mix of cutting performance in all types of grass 4 Position baffle is installed using the bottom set of holes on the front baffle welded inside the cutter deck See Figure 6 11 Placing the baffle in the 4 setting will enhance fall cutting leaf pickup and reduce cutter deck blowout Section 6 To adjust the Custom Cut Baffle height 1 Place the cutter deck in the transport position 2 Remove the hardware securing the Custom Cut Baffle to the cutter deck See Figure 6 8 NOTE Hardware location used in the illustrations are for reference only Location of hardware may vary depending on cutter deck size MOUNTING HARDWARE MOUNTING HARDWARE Figure 6 8 Custom Cut Baffle 3 Move the Custom Cut Baffle to desired position See Figures 6 9 through 6 11 for position 4 Reinstall the mounting hardware as shown See Figures 6 10 though 6 11 Torque hardware to 398 13 SET HOLES 3 SETTING CARRIAGE BOLT N ELASTIC STOP NUT Figure 6 9 3 Custom Cut Baffle Posi
48. e wearing shorts always wear adequate protective clothing including long pants Wearing safety glasses safety shoes and a helmet is advisable and is required by some local ordinances and insurance regulations Operator hearing protection is recommended particularly for continuous operation of the mower Wear suitable hearing protection Prolonged exposure to loud noise can cause hearing impairment or loss Keep the machine and attachments in good operating condition Keep all shields and safety devices in place If a shield safety device or decal is defective or damaged repair or replace it before operating the machine AWARNING This machine is equipped with an interlock system intended to protect the operator and others from injury This is accomplished by preventing the engine from starting unless the deck drive is disengaged the parking brake is on the steering control levers are in the neutral position and the operator is in the seat The system shuts off the engine if the operator leaves the seat with the deck drive engaged and or the steering control levers are not in the neutral postion and the parking brake is not engaged Never operate equipment with the interlock system disconnected or malfunctioning 10 Be sure the interlock switches are functioning 11 correctly Fuel is flammable handle it with care Fill the fuel tank outdoors Never fill it indoors Use a funnel or spout to prevent spillage Clean u
49. eft To steer right while traveling in reverse allow the right steering control lever to move forward The further the control is allowed to move forward the quicker the mower will turn right To stop the reverse travel allow the steering control levers to return to the neutral position If the mower is to be parked engage the parking brake 4 6 ENGAGING THE DECK DRIVE CUTTER BLADES 1 Set the throttle at about 3 4 speed Do not attempt to engage the deck drive at high speed as this shortens the electric clutch life use only moderate engine speed when engaging the deck drive 2 Engage the deck drive by pulling out on the yellow switch located on the instrument panel Figure 4 3 to the engage position PULL UP TO ENGAGE PUSH DOWN TO DISENGAGE STT99CES Figure 4 3 Cutter Engage Switch NOTE A squealing noise may be heard when engaging or disengaging the deck drive It is caused by the electric clutch plates meshing as the mower comes up to speed SCAG Section 4 3 To disengage the deck drive push the switch in to 3 Keep tires properly inflated the disengage position 4 8 PARKING THE MOWER 4 Always operate the engine at full throttle to properly maintain cutting speed If the engine starts to lug down reduce the forward speed and allow the engine to operate at maximum RPM 1 Stop on level ground and place the steering control levers in the neutral position 5 To properly burnish the electric
50. emove the cutter blade bolt and spacer from the spindle shaft Figure 7 10 NOTE The front of the machine will have to be raised slightly to remove the blade bolt from the cutter spindle To install the new cutter blade put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade HEX NUT TORQUE TO 75 LB FT SHAFT HEX HEAD BOLT NUT SPINDLE ASSEMBLY CUTTER BLADE SPACER CUTTER BLADE WASHER HEX HEAD BOLT 390S0160 Figure 7 10 Blade Replacement NOTE Be sure that the blade is installed with the lift wing toward the top Install the spacer onto the blade bolt and insert the bolt into the cutter spindle shaft 36 Section 7 6 Install the hex nut to the blade bolt at the top of the cutter spindle Secure the blades from rotating and torque to 75 ft lbs See Figure 7 10 7 10 TIRES Check the tire pressures after every 8 hours of operation or daily Caster Wheels Drive Wheels 7 11 CUTTER DECK GEARBOX A Checking Lubricant Level AXCAUTION The cutter deck gearbox can reach high operating temperatures Allow the cutter deck gearbox to cool before servicing CUTTER DECK GEARBOX 390S0161 Figure 7 12 Cutter Deck Gearbox The fluid level in the cutter deck gearbox Figure 7 12 should be checked after every 100 hours of operation or bi weekly whichever occurs first 1 Lower the cutter deck to to its lowest position to
51. emove the ignition key Using a stick or similar item dislodge the clogged material Then resume normal mowing 7 Operate the engine at full throttle for best cutting Mowing with a lower RPM causes the mower to tear the grass The engine is designed to be operated at full speed 4 11 MOVING MOWER WITH ENGINE STOPPED 8 Use the alternate stripe pattern for best lawn appearance Vary the direction of the stripe each To free wheel or move the mower around without the time the grass is mowed to avoid wear patterns in the engine running place the dump valve levers in the FREE grass WHEEL position Figure 4 2 Disengage the parking DUNE VAINE brake and move the mower by hand The dump valve 1 CONTROL levers must be returned to the DRIVE position and torqued to 10ft lbs to drive the mower 4 12 RECOMMENDATIONS FOR MOWING 1 not mow with dull blades A dull blade will tear grass resulting in poor lawn appearance and reduced mowing power 2 The discharge chute must not be removed and must be kept in the lowest position to deflect grass clippings and thrown objects downward Direct the side discharge away from sidewalks or streets to Figure 4 2 Dump Valve Control minimize cleanup of clippings When mowing close to obstacles direct the discharge away from the obstacles to reduce the chance of property damage by thrown objects AWWARNING DO NOT OPERATE WITHOUT DISCHARGE CHUTE MULCHING KIT OR ENTIRE GRASS CATCHER IN
52. en the lock nuts This will cause the control rod to stroke the RH pump less slowing down the RH wheel See Figure 6 3 NOTE If after making the adjustment as outlined in step 2A the machine creeps forward or backward the neutral adjustment must be made as described on page 21 6 3 THROTTLE CONTROL These adjustments must be performed by your Scag dealer to ensure proper and efficient running of the engine Should either need adjustment contact your authorized Scag service center 6 4 BELT ADJUSTMENT A WARNING Before removing any guards shut the engine off and remove the ignition key All drive belts and cutter deck belts are spring loaded and self tensioning The belts should be checked periodically for proper alignment and wear 6 5 BELT ALIGNMENT Belt alignment is important for proper performance of your Scag mower If you experience frequent belt wear or breakage see your authorized Scag service center for belt adjustment 24 Section 6 6 6 CUTTER DECK ADJUSTMENTS Cutter deck level pitch and height are set at the factory However if these adjustments should ever need to made the following procedures will aid in obtaining the proper cutter deck adjustment NOTE Before proceeding with the cutter deck adjustments be sure that all tires are properly inflated Cutter Deck Level The cutter deck should be level from side to side for proper cutting performance To check for level be s
53. ently to be sure they are tight 16 DO NOT store fuel near flames or drain indoors 17 Charge batteries in an open well ventilated area away from spark and flames Unplug charger before connecting or disconnecting from battery Wear protective clothing and use insulated tools 5 Do not change the engine governor settings or overspeed the engine See the engine operator s manual for information on engine settings 6 To reduce fire hazard keep the cutting units drives muffler and engine free of grass leaves excessive grease oil and dirt Section 2 2 7 SAFETY AND INSTRUCTIONAL DECALS DANGER SPINNING BLADE AAWARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR S MANUAL R REVERSE KEEP CLEAR 481039 CONTACT CAN INJURE 482285 482285 NWARN ING ROTATING BLADES AND BELTS Keep hands feet amp clothing clear Keep all guords in place Shut off engine amp disengage bLade FORWARD 481568 N CAUTION Ew from hut off clutch before servicing Use caution in directing discharge Read instruction manual before operating DO NOT OPERATE UNLESS GRASS CATCHER MULCHING KIT OR DISCHARGE CHUTE IS INSTALLED IMPORTANT Operation on slopes can be hazardous See your Scag dealer for available RoLL Oven Protective Systems 482834 482834 burns engine before removing fuel tank cap 482286 x
54. erating instructions as specified in the Operator s Manual Engines and electric starters are covered by the engine manufacturer s warranty period Major drive system components are warranted for two 2 years by Scag Power Equipment Parts and labor 181 year Parts only 2nd year Two year warranty exclude fittings hoses drive belts The repair or replacement of the hydraulic pump or hydraulic motor will be at the option of Scag Power Equipment This warranty does not cover any mower that has been subject to misuse neglect negligence or accident or that has been operated in any way contrary to the operating instructions as specified in the Operator s Manual Electric clutches have a Limited Warranty for 2 year Parts and labor Ist year Parts only 2nd year Cutter Spindle Assemblies 46631 have a Limited Warranty for three years Parts and labor Ist year Parts only 2nd and 3rd year Any Scag product used for rental purposes is covered by a 90 day warranty The Scag mower including any defective part must be returned to an Authorized Scag Service Dealer within the warranty period The expense of delivering the mower to the dealer for warranty work and the expense of returning it to the owner after repair will be paid for by the owner Scag s responsibility is limited to making the required repairs and no claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any Scag mower This
55. flated 1 Place the cutter deck in the transport position Loosen the jam nuts both ends of the deck height control rod See Figure 6 6 LANYARD PIN HEIGHT ADJUSTMENT PEDAL Figure 6 6 Cutter Deck Height Adjustment Turn the control rod See Figure 6 6 until there is a 1 4 space between the rear deck stop and the top of the cutter deck See Figure 6 7 Tighten the jam nuts on the control rod x 390S0175 1 Figure 6 7 Cutter Deck Stop 26 3 Check the cutter deck cutting height by placing the lanyard pin in the 3 position on the cutting height index Release the deck from the transport positon and allow the deck to move to the 3 cutting height position Check the measurement from the floor to the cutter blade tip If the measurement 15 not at 3 adjustment can be made using the deck height control rod See Figure 6 6 NOTE If an adjustment has to be made be sure that the cutter deck can easily be locked into the transport position Custom Cut Baffle Adjustment The Custom Cut Baffle is designed to deliver optimum airflow and superior cutting performance in any type of grass The Custom Cut Baffle can be raised or lowered to precisely tailor deck s performance for type of grass being cut The baffle can be set in three 3 different positions for optimum performance A 3 Position baffle is installed using the top set of holes on the front baffle welded inside the cutter
56. he system Grease 8 10 pumps 483046 50 hours 482710 482710 390S0150E Rev 1 Section 3 SPECIFICATIONS SCAG SABRE TOOTH TIGER ZERO TURN RIDER ENGINE General Type Brand Model Horsepower Type Displacement Cylinders Governor Airlntake Group Exhaust Group Fuel Injection Oil Pump Group Valve Group Electrical Charging System ENGINE DECK Fuel Tank Drive Wheels Tires Parking Brake Frame DRIVE SYSTEM Type Hydro Pumps Drive Wheel Motors Transmission Belt Idler Hydro Fluid Cooling Group Steering Travel Control Axles Wire Harness Safety Group Instrument Panel Forward Ground Speed Range Reverse Ground Speed Range Date of Issue October 2004 MODEL STT 31BSD Heavy Duty Industrial Commercial Turbo Charged Diesel Briggs Daihatsu Vanguard Liquid Cooled 31 DM950D 31 HP 3600RPM water cooled 4 cycle overhead valve 3 cylinder diesel engine 952cc 3 inline sleeves High speed flyweight governor runs faster than engine crankshaft provides precision speed governing and a steady low idle 3600 rpm 100 rpm idle set at 1700 rpm Canister type air filter system Single exhaustcanister muffler Distributor injection pump Positive displacement Gerotor oil pump with remote oil filter capacity 3 2 U S quarts 3 01trs withoil filter Overhead 12 volt battery with alternator solid state ignition with key start 40 a
57. hing Radiator Isolator Bushing Radiator ISO Mount Support Bracket Radiator Mounting Bracket Engine R H Mounting Bracket Weldment Engine R H Mounting Bracket Water Seperator Debris Screen Hose Air Intake Air Cleaner Assembly w mounting Band Pre Cleaner Engine Air Adapter Pre Cleaner Indicator Air Cleaner Bracket Air Cleaner Clamp Hose 2 1 2 Dia Fuel Filter Water Seperator Not Avail Through Scag Bolt Hex Head 5 16 18 x 3 4 Bolt Hex Head 1 2 13 x 2 1 2 Elbow Exhaust Bolt Hex Head M8 1 25 x 3mm Bolt Hex Head 3 8 16 x 1 1 4 Ref Part No No 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 04017 16 423641 04001 32 04041 07 04041 32 04003 04 04021 10 482603 04041 35 04021 21 04021 10 04003 12 04003 04 04017 16 481309 04010 21 04031 01 04020 01 482601 04021 09 04021 01 04030 03 48633 Description Bolt Hex Head 5 16 18 x 3 4 Catch Bracket Hood Latch Bolt Hex Head 3 8 16 x 1 1 4 Flatwasher 3 8 391 x 938 x 105 Flatwasher 1 2 531 x 2 13 x 1345 Bolt Carriage 5 16 18 x 1 Nut Elastic Stop 5 16 18 Rubber Isolator Flatwasher 7 16 469 x 2 0 x 1345 Nut Center Lock 7 16 14 Nut Elastic Stop 5 16 18 Bolt Carriage 5 16 18 x 3 4 Bolt Not Available Through Scag Contact Briggs amp Stratton Bolt Carriage 5 16 18 x 1 Bolt Hex Head 5 16 18 x 3 4 Serr Flange Latch Hood Screw 10 32 x 375
58. hout the wheels slipping reduce speed and use extreme caution ALWAYS FOLLOW OSHA APPROVED OPERATION Section 2 2 4 OPERATION CONSIDERATIONS CONT D To prevent tipping or loss of control start and stop smoothly avoid unnecessary turns and travel at reduced speed When using any attachment never direct the discharge of material toward bystanders or allow anyone near the machine while in operation Before attempting to start the engine with the operator in the seat disengage power to the cutter deck place the steering control levers in the neutral position and engage the parking brake If the mower discharge ever plugs shut off the engine remove the ignition key and wait for all movement to stop before removing the obstruction AWARNING DO NOT use your hand to dislodge the clogged discharge chute Use a stick or other device to remove clogged material 13 14 15 Take all possible precautions when leaving the machine unattended such as disengaging the mower lowering the attachments setting the parking brake stopping the engine and removing the key Disengage power to the attachments when transporting or when not in use The machine and attachments should be stopped and inspected for damage after striking a foreign object and damage should be repaired before restarting and operating the machine AXCAUTION DO NOT touch the engine or the muffler while the engine is running or immedia
59. ing broke Select Forword or reverse with AAWARNING CUTTING CUTTING HEIGHT HEIGHT hyrdo control hondLes INSTALL BELT COVER BEFORE WARNING OPERATING MACHINE 5 1 2 6 READ OPERATOR S MANUAL 481039 481039 AVOID SERIOUS INJURY OR DEATH 4 3 4m sor LR OFF M 4 ON atop blode and ort deen asa sudden turns a not when children or others 4 e ever corry children even with ott while bocking o before ond DECK pr ond working 482360 Pues PUSH IN TO DISENGAGE 3 1 4 m not could 482360 rain 482580 SCAG sug up 2 1 2 POWER EQUIPMENT 1 3 4m 482528 BOTTOM ROW TOP ROW OF HOLES OF HOLES 482565 482565 482493 482493 2004 STT 31BSD Decals 61 REPLACEMENT DECALS AND INFORMATION PLATES SCAG TURBO DIESEL CAG AX WARNING DO NOT OPERATE WITHOUT DISCHARGE CHUTE MULCHING 48314 KIT OR ENTIRE GRASS CATCHER INSTALLED 482165 482165 My y Z 481921 481925 482581 i IMPORTANT Operation on slopes can be hazardous See your Scag dealer for avai Lable RoLL Over Protective Systems 282824 Se Sy pur S 482834 lt a i n K IMPORTANT ADJUSTMENT PROCEDURES NEUTRAL ADJUSTMENT READ OPERATOR S MANUAL FOR MORE DETAILS Jm Check
60. king brakes Pull the yi M The mower is equipped with a safety interlock system ever forward to disengage the parking brakes that prevents the engine from starting unless the deck drive is disengaged the parking brake is engaged the 13 Fuel Tank Gauge Figure 4 1 Indicates the steering control levers are in the neutral position and the amount of fuel in the fuel tank operator is in the seat The interlock system shuts off the engine if the operator leaves the seat with the 14 Dump Valve Control Levers Figure 4 2 steering control levers not in the neutral position and or the cutter blades engaged and the parking brake not engaged Located on the hydraulic pumps used to wheel the mower Rotating the levers clockwise until they stop allows the unit to move under hydraulic power The levers must be in this position and torqued to 1Oft Ibs during operation of the mower Rotating the levers counter clockwise allows the mower to be moved by hand free wheeling AWARNING Never operate the mower with the interlock system disconnected or malfunctioning Do not disengage or bypass any switch injury to yourself and others or property damage could result 15 Deck Lift Foot Lever Figure 4 1 Used to raise and lower the cutter deck 13 4 3 INITIAL RUN IN PROCEDURES First Day of Use or Approximately 10 Hours Check all belts for proper alignment and wear at 2 4 and 8 hours
61. mp regulated charging system solenoid shift type starter 10 gallon 38 0 litres seamless polyethylene tank with fuel gauge cap 24x12 12 four ply pneumatic tubeless radius edge offset rims to improve operator s view Lever operated interlocked parking brake prevents operation with parking brake engaged Compact tractor frame with structural steel tubing construction Hydro drive with two variable displacement pumps and two cast iron motors for independent control of each drive wheel Two Hydro Gear Model BDP 21L pumps with dump valves for movement without running engine Two 23 cubic inch cast iron high torque wheel motors Self adjusting self tightening sealed bearings 6qt capacity nylon fluid reservoir uses SAE 20W50 fluid and 10 micron filter Twin lever fingertip steering control with gas shock dampeners for smooth responsive control to each wheel 1 1 4 heavy duty tapered motor shafts 14 gauge wire Seat actuated engine kill neutral interlock mower engagement BBC switch parking brake Voltmeter water temperature gauge oil pressure gauge key switch throttle fuses BBC switch hourmeter located at rear of machine glow plug indicator water separator indicator Oto 10 5 mph NOTE 0 to 5 0 mph The machine will travel at 10 5 mph for transport purposes For best cutting performance the forward travel speed should be adjusted depending on the cutting conditions Specifications Subject To Change Without Notice 10
62. necessary to check the indicator daily to prevent engine damage Snapopen the two clips securing the air cleaner cover to the air cleaner box Remove the air cleaner cover clean the duck bill vent of any dust and set the cover aside 2 Remove the air cleaner element and inspect 3 Clean or replace the element as recommended by the engine manufacturer 4 Replace the air filter cover and be sure to snap the two clips closed 5 Resetthe air cleaner indicator by pushing the button on the end of the indicator The indicator window should return to clear 7 7 BATTERY WARNING Lead acid batteries produce flammable and explosive gases To avoid personal injury when checking testing or charging batteries DO NOT use smoking materials near batteries Keep arcs sparks and flames away from batteries Provide proper ventilation and wear safety glasses Section 7 AMWARNING Battery posts terminals and related accessories contain lead and lead compounds chemicals known to cause cancer and reproductive harm Wash hands after handling WARNING Electric storage battery fluid contains sulfuric acid which is POISON and can cause SEVERE CHEMICAL BURNS Avoid contact of fluid with eyes skin or clothing Use proper protective gear when handling batteries DO NOT tip any battery beyond 45 angle in any direction If fluid contact does occur follow first aid suggestions below BATTERY ELECTROLYTE FIRST
63. p Starting 1 The booster battery must be a 12 volt type vehicle is used for jump starting it must have a negative ground system 2 When connecting the jumper cables connect the positive cable to the positive battery post then connect the negative cable to the negative battery post Section 7 SCAG 7 8 DRIVE BELTS B Blade Sharpening NOTE If possible use a file to sharpen the blade Using a wheel grinder may burn the blade All drive belts are spring loaded and self tensioning however after the first 2 4 8 and 10 hours of operation the belts should be checked for proper alignment and wear Thereafter check the belts after every 40 hours of operation or weekly whichever occurs first NOTE DO NOT sharpen the blades beyond 1 3 of the NOTE width of the blade See Figure 7 9 Page 33 If you experience frequent belt wear or breakage see your authorized Scag service center for belt adjustment 1 Sharpen the cutting edge at the same bevel as the original See Figure 7 9 Page 33 Sharpen only the 7 9 CUTTER BLADES top of the cutting edge to maintain sharpness A Blade Inspection Angle Blade Back Do Not Cut In 2 Raise the mower deck to the highest position Place thelanyard pin in the highest cutting height positon to 1 Remove ignition key before servicing blades X Must NOT Exceed 1 3 Blade Width prevent cutter deck from falling Figure 7 9
64. p any spillage before starting the engine 12 13 14 15 16 17 DO NOT add fuel to a running or hot engine Allow the engine to cool for several minutes before adding fuel Keep flammable objects cigarettes matches etc open flames and sparks away from the fuel tank and fuel container Equipment must comply with the latest requirements per SAE J137 and or ANSI ASAE 5279 when driven on public roads NOTE If the mower is driven on public roads it must comply with state and local ordinances as well as SAE J137 and or ANSI ASAE S279 requirements Contact your local authorities for regulations and equipment requirements DO NOT operate without the side discharge chute installed and in the down position or with an optional grass catcher or mulch plate completely installed Check the blade mounting bolts at frequent intervals for proper tightness Make sure all hydraulic fluid connections are tight and all hydraulic hoses and lines are in good condition before starting the machine 2 4 OPERATION CONSIDERATIONS Know the function of all controls and how to stop quickly Reduce speed and exercise extreme caution on slopes and in sharp turns to prevent tipping or loss of control Be especially cautious when changing directions on slopes WARNING DO NOT operate on steep slopes To check a slope attempt to back up it with the cutter deck down If the machine can back up the slope wit
65. r each use wash the mower and cutter deck Use cold water and automotive cleaners Do not use pressure cleaners 2 Donot spray electrical components 3 Use a mild soap solution or vinyl rubber cleaner to clean the seat 4 Repair damaged metal surfaces using Scag touch up paint available from your authorized Scag dealer Wax the mower for maximum paint protection 38 NOTES 39 61A 72A CUTTER DECKS 60 24 52 lt 14 29 20 L N 2 a EP lt h ote 18 ASP 6 x V gt EM POM 71 25 s STT BSG 2004 CD 61A 72A CUTTER DECKS Ref Part No No 461657 461659 04003 04 04019 04 481625 01 481632 04003 26 422478 04017 27 04043 06 10 04021 05 11 461296 12 04001 12 04001 11 13 04021 10 14 04020 09 15 451240 16 04001 41 17 04003 12 18 04001 154 19 04063 08 20 04063 01 21 04043 04 22 04001 11 23 04021 10 24 04001 172 25 48100 15 26 04030 03 27 04040 15 28 04041 07 29 04021 09 30 04001 62 31 04001 31 32 43503 33 04001 136 34 461663 35 43589 36 481024 37 481022 38 43644 39 43312 40 43296 41 481025 42 43297 OO O QI 8 OO N Description Cutter Deck 61 Advantage Includes Decals Cutter Deck 72 Advantage Includes Decals Bolt Carriage 5 16 18 x 1 Nut Hex Serrated Flange 3 8 16 Wing nut 3 8 16 Anti Scalp Wheel Bolt Carriage 3 8 16 x 4 Anti Scalp
66. rass Between Cutting Paths SS SS lt lt lt a SS Dull worn blades Adjust belt tension Sharpen blades Incorrect blade sharpening Sharpen blades Low engine RPM Run engine at full RPM Beltslipping Adjust belt tension Deck plugged grass accumulation Clean underside of deck Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Bent blades Not enough overlapping between rows Width Width of f s 0 o Decks scans Deck 19 Replace blades Increase overlap of each pass TROUBLESHOOTING CONT D CONDITION Uneven Cut on Flat Ground Wavy High Low Appearance Scalloped Cut or Rough Contour v NA K l I Width of Deck 4 5 5 2 368020 2 A es N AS Uneven Cut Uneven Ground Wavy Appearance High Low Scalloped Cut or Rough Contour BUS l NAY N lt SW N LT I Width of Deck o Sloping Ridge Across Width of Cutting Path Lift worn from blade Section 5 Replace blade Blade upside down Mount with cutting edge toward ground Deck plugged grass accumulation Clean underside of deck Too much blade angle deck pitch Adjust pitch and level Deck mounted improperly See your
67. rive unit can get hot during operation causing burn injuries Allow engine and drive components to cool before making any adjustments NOTE Before proceeding with this adjustment be sure that the caster wheels turn freely and that the tire pressure in the drive wheels is correct If the tire pressure is not correct the machine will pull to the side with the lower pressure 1 Ifat full speed the mower pulls right it is an indication that the left wheel is turning faster than the right wheel To adjust this condition proceed as follows A Stop the machine and place the steering control levers in the neutral position Loosen the lock nuts securing the ball joints at each end of the LH steering control rod Rotate the control rod to lengthen the rod and tighten the lock nuts This will cause the control rod to stroke the LH pump less slowing down the LH wheel See Figure 6 4 NOTE If after making the adjustment as outlined in step IA the machine creeps forward or backward the neutral adjustment must be made as described on page 21 2 If at full speed the mower pulls left it is an indication that the right wheel is turning faster than the left wheel To adjust this condition proceed as follows A Stop the machine and place the steering control levers in the neutral position Loosen the lock nuts securing the ball joints at each end of the RH steering control rod Rotate the control rod to lengthen the rod and tight
68. rt Bracket Hydraulic Tank Hose Assembly Pump Elbow 90 Degree 7 8 14 Thread Bolt Hex Head 1 4 20 x 1 14 Lockwasher 1 4 Spring Roll Pin Spring 3 16 x 3 4 Bushing 56 Dia Bushing 78 Dia Clamp Plate Pump Control Block Pump Control Pump Left Hand BDP 21L 305 Nut Hex Elastic Stop 3 8 16 Bolt Hex Head 3 8 16 x 1 1 4 Pump Right Hand BDP 21L 403 Cap Fuel Tank W Gauge Nut Hex Elastic Stop 3 8 16 Flatwasher 3 8 391 x 938 x 105 Grade 8 Mounting Bracket LH Oil Cooler Mounting Bracket RH Oil Cooler Bolt Hex Head 5 16 18 x 3 4 Clamp 3 16 Hose Hose 3 16 1 0 order by inch Hose Fitting Straight DAPCO Available through the individual engine manufacturer 55 ELECTRICAL SYSTEM 2005STTBSD EES 56 ELECTRICAL SYSTEM Ref Part No No O GQ N 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 40 41 42 43 Description 481176 08 Cable Positive Battery 481176 07 Cable Negative Battery 461613 481808 481687 48798 48017 03 48017 04 481806 481638 481183 481805 481184 423544 42413 04010 11 04021 01 48297 48298 483057 04010 01 04020 01 04031 01 483013 04001 01 04030 02 451081 04110 01 48017 02 481791 481812 481811 481813 481919 04002 17 483072 48030 09 48030 10 481335 04031 03 481182 482361 481826 482365 481824 481089 Clutch Electri
69. s and Scag does not assume or authorize anyone to assume for them any other obligation Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you Scag assumes no responsibility for incidental consequential or other damages including but not limited to expense for gasoline expense of delivering the mower to an Authorized Scag Service Dealer and expense of returning it to the owner mechanic s travel time telephone or telegram charges rental of a like product during the time warranty repairs are being performed travel loss or damage to personal property loss of revenue loss of use of the mower loss of time or inconve nience Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limita tion or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state
70. t Bracket Battery Box Flat Washer 1 2 562 x 1 375 x 109 Seat Adjustment Track Set Weight Adjustment Kit Knob Kit Nut Elastic Stop 1 4 20 Cup Holder Assembly Mounting Bracket STT Cup Holder Bolt Hex Head 1 4 20 x 3 4 45 SEAT BELT BRACKET STT ROLL OVER PROTECTION SYSTEM SEAT BELT BRACKET 46 STT BSD 2005 ROPS STT ROLL OVER PROTECTION SYSTEM Ref Part No No 461817 04001 82 04021 19 04001 178 04040 11 483150 04001 45 04041 07 43606 10 04021 09 11 04001 09 12 424192 13 04030 05 14 04019 03 15 04040 13 O O O OQ GQ N Description STT ROPS Bolt Hex Head 1 2 13 x 4 1 2 Nut Center Lock 1 2 13 Bolt Hex Head 7 16 20 x 1 Flatwasher 7 16 500 x 1 25 x 083 Seat Belt Bolt Hex Head 3 8 16 x 2 Flatwasher 3 8 391 x 938 x 105 Sleeve Seat Base Mounting Nut Elastic Stop 3 8 16 Bolt Hex Head 5 16 18 x 1 Bracket Seat Hold Down Lockwasher 7 16 Nut Serrated Flange 5 16 18 Flatwasher 1 2 562 x 1 375 x 109 47 DECK DRIVE COMPONENTS MEM Z 2003 STTBSD DDC DECK DRIVE COMPONENTS Ref Part No No 423464 481531 481309 04003 07 04019 02 04010 01 04031 01 04020 01 9 451458 10 43506 11 43507 12 482433 13 48028 05 14 04069 01 15 04001 20 16 461697 17 461613 18 481398 19 481536 20 04063 06 21 04001 175 22 482752 23 482791
71. taken WARNING The signal word WARNING denotes that a hazard exists on or near the machine that can result in injury or death if proper precautions are not taken CAUTION The signal word CAUTION is a reminder of safety practices on or near the machine that could result in personal injury if proper precautions are not taken Your safety and the safety of others depends significantly upon your knowledge and understanding of all correct operating practices and procedures of this machine 2 3 BEFORE OPERATION CONSIDERATIONS E NEVER allow children to operate this riding mower Do not allow adults to operate this machine without proper instructions gt DO NOT mow when children and or others are present Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator Be alert and turn machine off if a child enters the area pa Clear the area to be mowed of objects that could be picked up and thrown by the cutter blades DO NOT carry passengers DO NOT operate the machine under the influence of alcohol or drugs Section 2 2 3 BEFORE OPERATION CONSIDERATIONS If the operator s or mechanic s cannot read English or Spanish it is the owner s responsibility to explain this material to them DO NOT wear loose fitting clothing Loose clothing jewelry or long hair could get tangled in moving parts Do not operate the machin
72. ted parts list for STT 31BSD with a serial number of A7400001 to A7499999 SMST 61A with a serial number of A7500001 to A7599999 SMST 72A with a serial number of A7600001 to A7699999 Always use the entire serial number listed on the serial number tag when referring to this product SCA is POWER EQUIPMENT TABLE OF CONTENTS SUBJECT Section 1 General Information 1 1 Introduction 12 Directional Reference 13 Servicing the Engine and Drive Train Components Section 2 Safety Information Symbols 2 1 Introduction 22 Signal Words 23 Before Operation Considerations 2 4 Operation Considerations 2 5 Roll Over Protection System 2 6 Maintenance Considerations 2 7 Safety and Instructional Decals Section 3 Specifications Section 4 Operating Instructions 4 Controls and Instrument Identification 4 2 Safety Interlock System 4 3 Initial Run In Procedures 4 4 Starting Engine 4 5 Ground Travel and Steering 4 6 Engaging the Deck Drive 47 Hillside Operation 4 8 Parking the Mower 49 After Operation 4 10 Removing Clogged Material 4 11 Moving Mower with Engine Stopped 4 12 Recommendations for Mowing 4 13 Adjusting Cutting Height Section 5 Troubleshooting Cutting Conditions 19 21 TABLE OF CONTENTS CONT D SUBJECT Section 6 Adjustments 6 1 Parking Brake Adjustment 6 2 Travel Adjustments 6 3 Throttle Control and Choke Adjustments 6
73. tely after stopping These areas may be hot enough to cause a burn AWARNING DO NOT run the engine inside a building or a confined area without proper ventilation Exhaust fumes are hazardous and could cause death 10 11 12 Be alert for holes rocks roots and other hidden hazards in the terrain Keep away from any dropoff Beware of overhead obstructions low limbs etc underground obstacles sprinklers pipes tree roots etc Cautiously enter a new area Be alert for hidden hazards Disengage power to cutter deck before backing up Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower DO NOT turn sharply Use care when backing up Disengage power to cutter deck before crossing roads walks or gravel drives Mow only in daylight or good artificial light NEVER raise the deck with the blades engaged 16 17 18 Keep hands and feet away from cutter blades and moving parts Contact can injure Use care when loading or unloading the machine onto a trailer or truck Use care when approaching blind corners shrubs trees or other objects that may obscure vision 2 5 ROLL OVER PROTECTION SYSTEM AWARNING Seat belt must be securely fastened during operation Failure to do so could cause serious injury or loss of life Section 2 This mower has been designed for good traction and stability under normal mowing condi
74. tion FLATWASHER 27 MIDDLE SET OF HOLES FOR 3 1 2 SETTING ELASTIC STOP NUT FLATWASHER Figure 6 10 3 1 2 Custom Cut Baffle Position BOTTOM SET OF HOLES CARRIAGE BOLT FOR 4 SETTING y lt lt lt lt je ee 74 d b af AN q i J U ELASTIC STOP NUT Figure 6 11 4 Custom Cut Baffle Position FLATWASHER Section 7 MAINTENANCE 7 1 MAINTENANCE CHART RECOMMENDED SERVICE INTERVALS Break In 8 First 10 500 Procedure Check all hardware for tightness Comments Check hydraulic oil level See paragraph 7 3 Check all belts for proper alignment See paragraph 7 8 First 5 Change engine oil and filter See paragraph 7 4 x Check hydraulic hoses for leaks Check coolant level Use extreme caution when checking the hydraulic hoses See paragraph 2 5 See paragraph 7 12 Check engine oil level See paragraph 7 4 Clean mower See paragraph 7 14 Check condition of blades See paragraph 7 9 Apply grease to fittings See paragraph 7 2 Check tire pressure See paragraph 7 10 Check coolant level Check battery electrolyte level clean battery posts and cables See paragraph 7 12 See paragraph 7 7 Check belts for proper alignment See paragraph 7 8 Apply grease to fittings See paragraph 7 2 Change engine oil Clean air cleaner element See paragraph 7 4 See paragraph
75. tions However To avoid injury from burns allow the mower to cool caution must be used when traveling on slopes before removing the fuel tank cap and refueling especially when the grass is wet Wet grass reduces traction and steering control The Roll Over Protection System is standard equipment for this machine See section 2 5 page 6 of this manual for further details After the mower has cooled down fill the fuel tank with fresh clean fuel with a minimum cetane rating of 40 at the end of every day of operation 2 To prevent tipping or loss of control start and stop 5 smoothly avoid unnecessary turns and travel at reduced speed Check the tire pressure Adjust pressure if necessary 16 Section 4 SCAG 4 10 REMOVING CLOGGED MATERIAL 3 Cut grass when it is dry and not too tall Do not cut grass too short cut off 1 3 or less of existing grass for best appearance Mow frequently AADANGER ROTATING BLADES 4 Keep mower and discharge chute clean NEVER PUT YOUR HANDS INTOTHE DISCHARGE CHUTE FOR ANY REASON Shut off the engine 5 When mowing wet or tall grass mow the grass twice and remove the key and only then use a stick or Raise the mower to the highest setting for the first similar object to remove material if clogging has pass and then make a second pass to the desired occurred height 6 Use slow travel speed for trimming purposes 1 Ifthe discharge chute becomes clogged shut off the engine and r
76. tions However caution must be used when traveling on slopes especially when the grass is wet Do not mow on wet grass Wet grass reduces traction and steering control Any or all parts of the Roll Over Protection System MUST NOT be removed Failure to adhere to this guideline could result in injury or death The potential exposure of this seat belt to severe enviromental conditions make it crucial to inspect the seat belt system regularly It is recommended that the seat belt be inspected on a daily basis for signs of damage Any seat belt system that shows cuts fraying extreme or unusual wear significant discoloration due to UV exposure dirt or stiffness abrasion to the seat belt webbing or damage to the buckle latch plate hardware or any other obvious problem should be replaced immediately AWARNING Failure to properly inspect and maintain the seat belt can cause serious injury or loss of life 1 Check the full length of the seat belt webbing for cuts wear fraying dirt and stiffness See Figure 2 1 2 Check the seat belt webbing in areas exposed to ultra violet rays from the sun or extreme dust or dirt If the original color of the webbing in these areas is extremely faded and or is packed with dirt the physical strength of this webbing may have deteriorated If this condition exists replace the seat belt system 3 Check the buckle and latch for proper operation and determine if the latch plate is exessively
77. tire pressure Drive tires 12 psi Caster tires 25 psi Gearbox Lubricant Rotate turnbuckle Y Z With an operator in the seat engine running control Levers HYDRAULIC FLUID LEVEL SAE BOWSO gear oil In neutral and the parking boto al sengoge adjust control lt a Check hydraulic fluld Level Linkage Loosen jam nuts If wheel rotates forward adjust While Fluid Is cool Fluid turnbugkle CCN IT wheel rotates rearward adjust turnbUckLe O x Level should be below toj Adjust until drive wheel stops turning Tighten jam nuts of filler neck FILL IMPORTANT Repeat for opposite side SAE 20450 motor oil only DRIVESHAFT MAINTENANCE TRACKING ADJUSTMENT o Grease yokes 3 4 pumps 1f the machine pulls to the night adjust LH control Linkage N CCH to slow Left wheel If the machine pulls to the Left IMPORTANT ____ very 200 hours adjust RH control Linkage to slow right Wheel Readjuet I Do not overfill Room For neutral If necessary gt uy hot fluid expansion must FREE WHEEL OPERATION H ON sag cates Grease spline 8 10 pumps To move machine without running the engine rotate both dump Ne Weis Every 50 hours valves Located at the LH side of the pumps 1 2 turn to even fneewheel positions Return dump valves to original position 481664 481663 483154 to operate the mower Tighten to 7 10 ft lbs 2 483154 2005 STT 31
78. tor is full and needs to be cleaned out Mower Deck Switch Figure 4 1 Used to engage and disengage the mower drive system Pulling up on the switch will engage the deck drive Pushing down on the switch will disengage the deck drive Glow Plug Indicator Figure 4 1 Yellow indicator turns off when the glow plugs have been properly heated after the ignition switch is turned on Engine Throttle Control Figure 4 1 Used to control the engine speed Pushing the lever forward increases engine speed Pulling the lever back decreases engine speed Full back position is the IDLE position Full forward is the cutting position RIGHT STEERING LEFT STEERING CONTROL lt CONTROL CUTTING HEIGHT PARKING BRAKE B WATER TEMPERATURE Bane Boon Bagg Bagg nang 333 ADJUSTMENT CONTROL MOWER DECK SWITCH WATER SEPARATOR INDICATOR OIL PRESSURE GLOW PLUG INDICATOR IGNITION SWITCH L VOLTMETER DUMP VALVE E 4 FUEL GAUGE HOURMETER BSD2005CONTROLS Figure 4 1 Controls and Instruments 12 Section 4 Voltmeter Figure 4 1 Indicates the condition of the charging system When the engine is running in normal operating conditions the needle should be in the 12 to 14 volt range
79. ts at both ends of the brake control rod and turning the rod until the proper distance is achieved See Figure 6 1 Tighten the jam nuts With the brake in the engaged position check the distance between the lower nut on the brake actuator rod and the brake actuator lever on the LH side of the machine The distance should be 1 8 See Figure 6 2 If the distance is not at the specified measurement loosen the jam nut at the clevis on the top of the brake actuator rod See Figure 6 2 Turn the bolt at the bottom of the brake actuator lever until the 1 8 measurement is achieved and tighten the jam nut at the clevis on the brake actuator rod See Figure 6 2 22 7 Repeat steps 4 6 on the RH side of the machine 8 Replace the drive wheels and test the brake NOTE If this procedure does not achieve proper brake adjustment please contact your authorized Scag dealer LOOSEN HERE 390S0152 1 2 to 2 1 4 Clearance Figure 6 1 Brake Adjustment 390S0153 1 Figure 6 2 Brake Rod Adjustment 6 2 TRAVEL ADJUSTMENTS Neutral or tracking adjustments will need to be made if A The steering control levers are in the neutral position and the machine creeps forward or backward Neutral Adjustment See Page 21 Section 6 B The steering control levers are in full forward position and the mower pulls to one side or the other when traveling in a forward direction Tracking Adjustment See Page 23
80. ure that the mower is on a flat level surface the tires are properly inflated and the cutter deck is set at the most common cutting height that you will use On the RH side of the machine check the distance from the bottom of the cutter deck to the floor Next check the distance from the bottom of the cutter deck to the floor on the LH side of the machine Both measurements should be the same If the two measurements are different the cutter deck level must be adjusted as follows 1 On the front LH side of the cutter deck locate the cutter deck adjusting bolt See Figure 6 5 JAM NUT ADJUST HERE 390S0174 1 Figure 6 5 Cutter Deck Adjustment 2 Loosen the elastic stop nut and move the bolt up or down in the slot to adjust the cutter deck until the distance from the bottom of the cutter deck to the floor is the same as the measurement on the RH side of the machine 25 3 Tighten the elastic stop nut to secure the cutter deck in the proper position Cutter Deck Pitch The pitch of the cutter deck should be equal between the front and rear of the cutter deck for proper cutting performance To check for proper deck pitch be sure that the mower is on a flat level surface and the tires are properly inflated Use the following procedures however measure from the top of the cutter deck rather than the bottom edge Lay a straight edged object on the top of the Advantage cutter deck protruding towards the front of the ma
81. worn deformed or of the buckle is damaged or cracked See Figure 2 1 INSPECT BUCKLE amp LATCH T INSPECT WEBBING Figure 2 1 Seat Belt Inspection A WARNING Reduce speed when turning operating on slopes slick or wet surfaces Allow extra distance to stop Stay off of slopes too steep for safe operation To check a slope attemp to back up it with the cutter deck down If the machine can not back up the slope without the wheels slipping do not operate the machine on this slope ALWAYS travel up or down the slope whenever possible Never across the slope DO NOT mow near drop offs ditches or embankments The machine could suddenly roll over if a wheel goes over the edge or if the edge caves in Operate the machine smoothly no sudden turns starts or stops on a slope NEVER tow on slopes The weight of the towed equipment may cause loss of traction and loss of control DO NOT permit untrained personnel to operate the machine SCAG Section 2 7 Park the machine on level ground and engage the parking brake 8 NEVER allow untrained personnel to service the machine 9 Use care when checking blades Wrap the blade s or wear gloves and use caution when servicing blades Only replace blades NEVER straighten or weld blades 10 Keep all parts in good working condition Replace all worn or damaged decals Figure 2 2 STT BSD With Roll Over 11 Protection System 2 6 MAINTENA

Scag Power Equipment STT-31BSD User's Manual

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