Yard-Man 53AA1A3G401 User's Manual
Contents
1. ENTIRE GRASS CATCHER IS IN ITS PROPER PLACE ASSEMBLE CHUTE DEFLECTOR TO THIS UNIT BEFORE OPERATING SLOPE GAUGE SECTION 2 Use this page as a guide to determine slopes where you may not operate safely Do not operate your lawn mower on such slopes E 3 SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE I ref A POWER POLE ie ACORNER OF A BUILDING SA l au ORAFENCE POST Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury If operating a walk behind mower on such a slope it is extremely difficult to maintain your footing and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes Operate WALK BEHIND mowers across the face of slopes never up and down slopes SECTION 3 KNOW YOUR Z SERIES NOTE Reference to right or left hand side of the mower is observed from the operating position Throttle Lever and Drive Handles Choke Lever Indicator Panel Parking Brake Pedal peed Control Bar Right Control Lift Handle Panel Figure 1 WARNING Be familiar with all controls A and their proper operation Know how to stop the machine and disengage them quickly PTO Switch Right Control Panel Ignition Light Switch The ignition light switch is located on the right cont2. REF PART NO NO DESCRIPTION 1 757 3014 Seat 2 731 3154 Seat Slide 3 712 3004A Flange Lock Nut 5 16 18 4 732 3098 Spring Index 5 720 0190 Height Adjustment Knob 6 603 0294 Seat Base Bracket Assembly 7 712 3005 Flange Lock Nut 3 8 16 8 732 3080 Spring Compression 9 738 0372 Shoulder Spacer 10 710 1260A Hex Washer Screw 5 16 18 x 750 11 747 3342 Rod 12 710 0520 Hex Cap Screw 3 8 16 x 1 5 13 710 0347 Hex Cap Screw 3 8 16 x 1 75 14 736 0227 Flat Washer 390 ID x 1 5 OD 15 603 0318A Seat Spring Plate Assembly 16 738 3156 Shoulder Spacer 17 738 0296 Shoulder Screw 18 714 0104 Cotter Pin 19 732 0827 Torsion Spring 5 16 20 736 0314 Thrust Washer 21 738 3166 Shoulder Spacer 22 603 0470 Seat Mounting Bracket Assembly 37 Model 53AA1A3G401 40 gt 12 22 21 17 20 16 19 i N 38 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 711 0642A Handle Button 21 712 0431 Flange Lock Nut 3 8 16 2 731 3158 Handle Deck Lift Grip 22 738 3151 Shoulder Screw 3 8 16 56 x 27 3 732 3097 Compression Spring 23 712 3015 Jam Nut 5 8 11 4 747 3405 Front Lift Rod 24 1736 0158 Lock Washer 5 8 5 738 0507B Shoulder Screw 500 Dia x 434 25 712 3016 Lock Hex Nut 5 8 11 6 710 0216 Hex Cap Screw 3 8 16 x 75 26 1711 3266 Clevis Pin 7 603 0422 Shaft Mounting Bracket LH 27 703 3407 Front Lift Bracke
3. See Figure 23 Adjustable Link Retaining 42 Deck Bracket and Arm Figure 25 Support G Pin Ky Installing Mower Deck Belt Hanger H Remove the mower deck and the old mower deck Bracket drive belt from the mower deck Install and route the new belt according to the Figure 23 DI routing diagram See Figure 26 Move the lift handle to position 7 all the way up Install the mower deck Refer to Installing The Remove the belt from the outside pulley of the Mower Deck mower deck by pulling and holding the belt so part of it is outside the pulley To Clutch Pulley Figure 26 Installing The Mower Deck Slide the mower deck under the Z Series making sure belt covers are removed From the rear reach under the muffler cover and grasp the belt from the mower deck and bring it between the hydraulic units e Bring the belt between the pulley and the clutch Do not put the belt into the pulley grove yet e From the front of the Z Series hold both front lift rods up and slide the mower deck forward until the lift rods go into the bracket e Slide the mower deck backwards to insert the front lift rods into the brackets See Figure 25 Align the mower deck so the lift link aligns with the hanger bracket on the mower deck See Figure 27 Adjustable Link Lift Link Support Pin Hanger Bracket Figure 27 e Pul
4. insert the dipstick and check the hydraulic oil level Draining Hydraulic Oil e Place the Z Series on a level surface and engage the parking brake e Stop the engine and remove the key from the ignition switch e Remove the mower deck See Removing the Mower Deck section Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase Remove hydraulic fill plug dipstick e Place a suitable container at least 2 gallon under the hydraulic oil filter Remove the hydraulic filter to allow hydraulic oil to drain See Figure 16 e Place a small pan under the skid plate and drain oil from both left and right axles Replace both axle drain plugs and install new hydraulic oil filter Add proper amount of hydraulic oil to reservoir e Run and check oil level Re N V Tr A Uy po z A EAN Hydraulic Oil Filter Left Transmission Drain Plug Figure 16 placing The Head Lamp Bulb Detach the bottom of the rubber boot cover on the drive handles Slide the boot cover all the way up toward the drive handles to access the drive handle bolts Remove drive handle bolts drive handles and rubber boot Remove the four bolts securing the retaining plate to the control tower cover Pull up on the control tower cover and slide up and over the control tower Locate the rear of the light fixture where the wire attaches See Figure 17 Remove the
5. wear bent cracked Replace with blade which meets original equipment specifications Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Never tamper with safety devices Check their proper operation regularly Use all guards as instructed in this manual A After striking a foreign object stop the engine remove the wire from the spark plug and thoroughly inspect the mower for any damage Repair the damage before restarting and operating the mower Grass catcher components are subject to wear damage and deterioration which could expose moving parts or allow objects to be thrown For your safety protection frequently check components and replace with manufacturer s recommended parts when necessary Mower blades are sharp and can cut Wrap the blade s or wear gloves and use extra caution when servicing blade s Check brake operation frequently Adjust and service as required Muffler engine and belt guards become hot during operation and can cause a burn Allow to cool down before touching Do not change the engine governor settings or overspeed the engine Excessive engine speeds are dangerous TO REDUCE THE RISK OF INJURY DO NOT OPERATE MOWER UNLESS DISCHARGE CHUTE COVER OR GRASS CATCHER IS IN ITS PROPER PLACE A DANGER ASSEMBLE CHUTE DEFLECTOR a TO THIS UNIT BEFORE OPERATING MACHINE 20 21 22 23 Observe prop
6. 736 0171 Lock Washer 7 16 66 750 3176 Idler Spacer 33 1736 3015 Flat Washer 469 ID x 875 OD 67 746 3089 Declutching Cable 34 603 0377A Idler Arm Assembly 68 712 3007 Jam Nut 5 16 18 29 Model 53AA1A3G401 REF PART NO NO DESCRIPTION 1 618 3110A Drive Ass y Complete 2 712 3004A Hex Flange Lock Nut 5 16 18 3 715 0136 Spiral Pin 3 16 x 1 25 4 717 3396 Spur Gear 14T 5 717 3455 Hydro Transmission 6 718 3053 Parking Brake Lever 7 721 0343 O Ring 2 0 Dia 8 727 3125 Cap Nut 3 8 30 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 618 3110A Drive Ass y Complete 13 1717 3395 Spur Gear 13T 1 611 3012 Axle Assembly 14 1717 3397 Ring Gear 46T 710 0852 Ribbed Neck Stud 15 719 3114 Axle Outer Housing 2 618 3106 Carrier Assembly Output 16 721 0381 Oil Seal 3 618 3107 Gear Assembly 51T Internal 8 20T 17 721 0393 Oil Seal 4 618 3109 Housing Ass y 18 727 3124 Elbow Fitting 5 710 1342 Hex Washer Screw 1 4 20 x 1 1 8 19 732 0752 Brake Shoe Spring 6 711 1048 Brake Shaft 20 736 0351 Shim Washer 76 x 1 5 x 030 7 712 3027 Hex Flange Lock Nut 1 4 20 736 0492 Shim Washer 76 x 1 5 x 010 8 715 0156 Roll Pin 736 0493 Shim Washer 76 x 1 5 x 020 9 715 0219 Dowel Pin 21 741 0665 Needle Bearing 10 715 3045 Bushing 22 741 3033A Ball Bearing 11 716 3015 Inverted Retaining Ring 23 741 3080 Nee
7. Control Handle 35 712 0453 Retainer Nut 1 4 20 10 731 3128A Lens 36 747 3303 Support Rod 11 710 0642 Hex Washer Screw 1 4 20 x 750 37 726 0106 Speed Cap 1 4 12 703 2648 Bellow Retainer Bracket 38 710 3015 Hex Cap Screw 1 4 20 x 75 13 738 0754 Shoulder Screw 437 x 54 39 603 0643 Spring Clip Bracket Asm 14 731 3325 Seat Base 40 712 3027 Hex Flange Nut 1 4 20 15 703 3288 Cruise Control Mounting Bracket 41 749 3082 Engine Support Tube 16 712 3004A Flange Lock Nut 5 16 18 42 710 3180 Hex Cap Screw 5 19 18 x 1 75 17 710 0276 Carriage Screw 5 16 18 x 1 0 43 750 3200 Spacer 18 736 0242 Bell Washer 340 ID x 872 OD 44 710 0946 Machine Screw 1 4 20 x 625 19 720 0241 Wing Nut Knob 5 16 18 45 731 3327 Body 20 726 0289 Plug 46 725 3233 Electric PTO Knob 21 731 3329 Console 47 703 1341B Key 22 738 3163A Shoulder Screw 75 x 245 3 8 16 48 603 0425 Control Panel Asm RH 23 736 3039 Flat Washer 406 x 1 5 49 731 3196 Control Panel Cover RH 24 703 2928 Body Hinge 50 603 0578 Body Mounting Plate Asm 25 710 0376 Hex Cap Screw 5 16 18 x 1 0 51 731 3328 Front Body Floor 26 736 0226 Flat Washer 474 ID x 879 OD 52 1703 3078 Support Latch Bracket 23 Model 53AA1A3G401 Model 53AA1A3G401 REF PART NO NO DESCRIPTION 1 603 0649 Parking Brake Shift Ass y 2 714 3004 Cotter Pin 3 710 3178 Carriage Bolt 3 8 16 x 75 4 741 0324 Hex Flange Bearing 506 ID x 590 5 70
8. be asked to enter the serial number in order to process your call For more details about your unit visit our website at www yardman com SECTION 1 MAINTAINING SAFETY WARNING This symbol points out important safety instructions which if not followed could endanger the personal safety and or property of yourself and others Read and follow all instructions in this manual before attempting to operate this machine Failure to comply with these instructions may result in personal injury When you see this symbol heed its warning WARNING The Engine Exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm DANGER This machine was built to be operated according to the rules for safe operation in this manual As with any type of power equipment carelessness or error on the part of the operator can result in serious injury This machine is capable of amputating hands and feet and throwing objects Failure to observe the following safety instructions could result in serious injury or death GENERAL OPERATION 11 Turn off blade s when not mowing 12 Stop engine and wait until blade s comes to a complete stop before a removing grass catcher or unclogging chute or b making any repairs adjusting or removing any grass or debris 1 Read understand and follow all instructions in the manual and on the machine before starting Keep this manual in a saf
9. cracks especially if you strike a foreign object Replace when necessary SECTION 8 TROUBLESHOOTING Trouble Possible Cause s Corrective Action Engine fails to start PTO switch engaged Brake pedal not engaged Spark plug wire disconnected Throttle control lever not in correct starting position Fuel tank empty or stale fuel Blocked fuel line Faulty spark plug Engine flooded Disengage PTO switch Engage brake pedal Connect wire to spark plug Move throttle lever to FAST or START posi tion Fill tank with clean fresh not over 30 days gasoline Clean fuel line Clean adjust gap or replace Crank engine with throttle in FAST position Engine runs erratic Unit running in START position Choke lever toward ON position Spark plug wire loose Blocked fuel line or stale fuel Vent in gas cap plugged Water or dirt in fuel system Dirty air cleaner Move throttle lever to FAST position Push choke lever to OFF position Connect and tighten spark plug wire Clean fuel line fill tank with clean fresh not over 30 days gasoline Clear vent Drain fuel tank Refill with fresh fuel Clean air cleaner Engine overheats Engine oil level low Air flow restricted Fill crankcase with proper oil Remove blower housing and clean Occasional skip hesitates at high speed Spark plug gap too close Adjust gap to 030 Idles poorly Spark plug foul
10. hydrostatic cooling fan Pull the drive belt out of the unit Installing Drive Belt Set the parking brake and insert drive belt up and over the left and right hydostatic cooling fans Do not place the belt into the drive pulley groves at this time e Place the drive belt into the top groove of the engine pulley and route the belt to the inside of the idler pulley Roll the belt up into the groove of the left drive pulley and roll the belt up into the groove of the right drive pulley Make sure that the belt is seated in all pulley grooves and release the parking brake The drive belt should be tightened by the idler pulley if the belt was installed correctly e Check the belt for correct routing and reinstall the mower deck SECTION 7 MAINTAINING MOWER DECK Checking The Level Of The Mower Deck Side to Side e Position the Z Series on a hard and level surface and place the PTO switch in the OFF position Engage the parking brake and turn the ignition switch to the OFF position and remove key Remove spark plug wire s from the spark plug s Raise the lift handle to the highest setting 7 e Position the mower blades so they run perpendicular to the Z Series See Figure 18 L yi L Pale Blade Jes Measurement Figure 18 Measure the distance from the outside of the left blade tip to the ground and the distance from the outside of the right blade tip to the ground Both measure
11. 0 0506 Hex Cap Screw 1 2 20 x 5 5 7 712 0229 Push Nut 3 8 ID 17 750 0456 Spacer 79 ID x 347 Lg 8 710 3178 Carriage Bolt 3 8 16 x 75 18 634 3169 Wheel Comp 11 0 x 4 0 x 5 0 9 710 0514 Hex Cap Screw 3 8 16 x 1 0 19 1750 3197 Wheel Spacer 10 736 0169 Lock Washer 3 8 20 603 0382 Front Axle Ass y 40 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 712 0455 Retaining Nut 3 8 16 10 1710 1174 Carriage Bolt 5 16 18 x 2 0 2 603 0720B Frame Assembly 11 736 0451 Shoulder Washer 320 ID x 93 OD 3 1712 0251 Retaining Nut 3 8 16 12 710 0521 Hex Cap Screw 3 8 16 x 3 0 4 710 0216 Hex Cap Screw 3 8 16 x 75 13 710 0859 Hex Cap Screw 3 8 16 x 2 5 5 712 0431 Lock Nut 3 8 16 14 719 3130 Counter Weight 6 710 3144 Hex Cap Screw 3 8 16 x 2 0 15 726 0298 End Cap 7 749 3061 Lower Bumper Tube 16 603 0620 Bumper Ass y 8 1712 3004 Lock Nut 5 16 18 17 736 3004 Flat Washer 406 ID x 875 OD 9 749 3062 Upper Bumper Tube 18 712 0431 Flange Lock Nut 3 8 16 41 Model 53AA1A3G401 42 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 732 0556 Spring Extension 94 OD x 7 57 LG 30 741 0338 Flange Bearing 3 4 ID x 52 LG 2 712 3006 Hex Nut 1 4 20 31 1603 0581 Pivot Arm Pulley Asm 3 710 0597 Hex Cap Screw 1 4 20 x 1 0 32 732 0850 Spring Extens
12. 270 Bell Washer 265 ID x 75 OD 26 712 0239 Hex Lock Nut 1 2 20 55 618 3129 Spindle Assembly 27 736 0179 Flat Washer 1 2 ID x 1 25 OD 56 711 3314 Roller Pin 28 736 0188 Flat Washer 76 ID x 1 49 OD 57 710 3008 Hex Cap Screw 5 16 18 x 75 29 750 0656 Spacer 50 OD x 75 ID 43 Model 53AA1A3G401 REF PART NO NO DESCRIPTION 1 751 3124B Fuel Cap 2 751 3143 Fuel Tank 3 736 0227 Flat Washer 390 ID x 1 5 OD 4 736 0169 Lock Washer 3 8 5 703 2783 Fuel Tank Mounting Bracket 6 710 0870 Hex Washer Screw 3 8 16 x 625 7 710 1260A Hex Washer Screw 5 16 18 x 75 8 734 1596 Tire 20 x 8 8 9 634 3005 Rim Ass y 8 x 6 19 10 734 0255 Tubeless Air Valve 11 634 3050 Wheel Comp 20 x 8 8 44 NOTES 46 47 MANUFACTURER S LIMITED WARRANTY FOR YARD MAN The limited warranty set forth below is given by MTD PRODUCTS INC MTD with respect to new merchandise purchased and used in the United States its possessions and territories MTD warrants this product against defects in material and workmanship for a period of two 2 years commencing on the date of original purchase and will at its option repair or replace free of charge any part found to be defective in material or workmanship This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator s Manual furnished with the product and has not been subjec
13. 270 Bell Washer 265 x 75 20 725 0157 Cable Tie 43 725 3001 Solenoid Switch 21 710 3009 Screw 10 24 x 75 44 736 3006 Lock Washer 1 4 ID x 3 4 OD 22 746 3074 Throttle Cable 45 710 0751 Hex Cap Screw 1 4 20 x 620 23 746 3073 Choke Cable 46 725 1711 Retainer Clip 33 Model 53AA1A3G401 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 629 3033 Main Wire Harness Not Shown 16 731 3233 Battery Tray 2 723 0455 Foam Protector 17 725 1722 Battery 3 710 3013 Hex Cap Screw 1 4 20 x 50 18 783 0462 PTO Switch Retainer Bracket 4 703 2809 Indicator Mounting Bracket 19 712 0397 Wing Nut 1 4 20 5 726 0349 Ratchet Retainer 20 725 1346 Ignition Switch Nut 5 8 32 6 725 1718 Relay 21 1725 1347 Ignition Cap Switch 7 712 3027 Hex Flange Nut 1 4 20 22 1725 3163 Ignition Switch 8 710 0134 Carriage Screw 1 4 20 x 62 23 1725 3251 Voltage Sensor 9 703 2836 Headlight Mounting Bracket 24 725 3250 Headlight Assembly 10 725 3164A Safety Switch 25 1731 3184 Headlight 11 725 3253 Seat Switch 26 732 0816 Switch Mounting Spring 12 725 0157 Cable Tie 27 1710 0425 Machine Screw 10 24 x 5 8 13 712 0271 Hex Nut 1 4 20 28 712 0161 Hex Lock Nut 4410 24 14 710 3015 Hex Cap Screw 1 4 20 x 75 29 703 3149A Battery Strip 15 747 3347 Battery Retainer Rod 35 Model 53AA1A3G401 36 Model 53AA1A3G401
14. 3 3400 Brake Mounting Bracket 6 747 3404 Connecting Brake Rod 7 714 0104 Cotter Pin 8 710 0134 Carriage Screw 1 4 20 x 62 9 712 3027 Hex Flange Lock Nut 1 4 20 10 703 3405 Support Plate 11 1714 0101 Cotter Pin 12 1703 2857 Retaining Rod Bracket 13 732 0827 Torsion Spring 5 16 14 747 3397 Parking Brake Retaining Rod 15 735 0664 Parking Brake Pad 16 603 0683 Brake Rod Ass y 17 711 3357 Ferrule 18 712 0314 Jam Nut 1 4 28 19 736 0258 Flat Washer 385 ID x 1 0 OD 20 712 0431 Flange Lock Nut 3 8 16 21 747 3266A Bracket Rod 22 732 0463 Extension Spring 23 732 0800 Extension Spring 24 747 3284 Release Pump Rod RH 25 747 3363 Release Pump Rod LH 25 Model 53AA1A3G401 26 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 603 0340 Bellcrank Ass y Upper LH 20 714 0104 Cotter Pin 2 603 0341 Bellcrank Ass y Upper RH 21 723 0420 Spherical Rod End RH 3 8 24 3 603 0342 Bellcrank Ass y Lower LH 22 1723 0421 Spherical Rod End LH 3 8 24 4 603 0343 Bellcrank Ass y Lower RH 23 1727 3113 Damper Cylinder 5 603 0647 Support Ass y Tower 24 732 3084 Spring Compression 6 603 0410 Rod Ass y Control RH 25 736 0169 Lock Washer 3 8 7 603 0411 Rod Ass y Control LH 26 736 0539 Thrust Washer 625 ID x 1 12 OD 8 710 0216 Hex Cap Screw 3 8 16 x 75 27 736 3004 Flat Washer 406 ID x 875 OD 9 710 3005 Hex Cap Screw 3 8 16 x 1 25 28 737 0280 Grease Fit
15. YaRD MaN A WMD MTD YaRD MaN OPERATOR S MANUAL Model 53AA1A3G401 ForA For A Growing World World MTD IMPORTANT READ SAFETY RULES AND INSTRUCTIONS CAREFULLY Warning This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest covered brush covered or grass covered land unless the engine s exhaust system is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department P O Box 368022 Cleveland Ohio 44136 9722 MTD PRODUCTS INC P O BOX 368022 CLEVELAND OHIO 44136 9722 PRINTED IN U S A FORM NO 770 10326A ECO No 952 4 00 TABLE OF CONTENTS Content Page Maintaining Safetyii cna assiale aaae a aaa iii fi 3 Slope GAITA tidad 6 Know Your Z Sere ini das 7 Operating Your Z Series iai ee ee aa aa aas aaa narran Rere aa a 10 Making Ad USINES rrene iid iii ii rara 12 Maintaining Your Z Series 14 Maintaining Mower DeckK cnn nn nnnn rra rr nnnn cnn rra 18 TroublestioO linia dd di ea
16. al first and the NEGATIVE Black wire second Be certain that the wires are connected to the correct terminals Charging If the unit has not been in use for an extended period of time charge the battery with an automotive type 12 volt charger for a minimum of one hour at six amps Never store battery without a full charge Tires The two front wheels are caster wheels that swivel to accommodate the direction of the Z Series The two rear wheels are used to propel the Z Series in the direction of input from the drive handles Inflation pressure of the tires is important for stability while the Z Series is in operation See tire side wall for proper inflation pressure 1 WARNING Periodically inspect the blade adapter for cracks especially if you strike a foreign object Replace when necessary Removing The Drive Belt Visually inspect the drive belt for wear and cracking If the drive belt shows signs of glazing fraying cracking or excess wear it needs to be replaced Follow these steps to replace the drive belt Set parking brake and remove the mower deck belt from the engine pulley See Removing the Mower in MOWER DECK section e Locate the drive belt and roll drive belt down off the left drive pulley Then roll the drive belt down off the right drive pulley and remove the drive belt from the engine pulley e Carefully pull the belt up and over the right hydrostatic cooling fan and then lift up and over the left
17. all not be liable for incidental or consequential loss or damages including without limitation expenses incurred for substitute or replacement lawn care ser vices for transportation or for related expenses or for rental expenses to temporarily replace a warranted product Some states do not allow the exclusion or limita tion of incidental or consequential damages so the above exclusion or limitation may not apply to you In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold Alteration of the safety features of the product shall void this War ranty You assume the risk and liability for loss damage or injury to you and your property and or to others and their property arising out of the use or misuse or inability to use the product This limited warranty shall not extend to anyone other than the original purchaser original lessee or the person for whom it was purchased as a gift How State Law Relates to this Warranty This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state
18. arts thereof These items carry a separate manufacturer s warranty Please refer to the applicable manufacturers warranty on these items b Log splitter pumps valves and cylinders have a sepa rate one year warranty YARD MAN c Routine maintenance items such as lubricants filters blade sharpening and tune ups or adjustments such as brake adjustments clutch adjustments or deck adjustments and normal deterioration of the exterior finish due to use or exposure d MTD does not extend any warranty for products sold or exported outside of the United States of America its possessions and territories except those sold through MTD s authorized channels of export distribu tion No implied warranty including any implied warranty of merchantability or fitness for a particular purpose applies after the applicable period of express written warranty above as to the parts as identified No other express warranty or guaranty whether written or oral except as mentioned above given by any person or entity including a dealer or retailer with respect to any product shall bind MTD During the period of the War ranty the exclusive remedy is repair or replacement of the product as set forth above Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales MTD sh
19. blind corners shrubs trees or other objects that may obscure your vision of a child or other hazard Remove key when machine is unattended to prevent unauthorized operation SERVICE 1 Use extreme care in handling gasoline and other fuels They are extremely flammable and the vapors are explosive Use only an approved container Never remove fuel cap or add fuel with the engine running Allow engine to cool at least two minutes before refueling Replace fuel cap securely and wipe off any spilled fuel before starting the engine as it may cause a fire or explosion Extinguish all cigarettes cigars pipes and other sources of ignition Never refuel the machine indoors because fuel vapors will accumulate in the area Never store the fuel container or machine inside where there is an open flame or spark such as a gas hot water heater space heater or furnace Never run a machine inside a closed area To reduce fire hazard keep the machine free of grass leaves or other debris build up Clean up oil or fuel spillage Allow machine to cool at least 5 minutes before storing Before cleaning repairing or inspecting make certain the blade and all moving parts have stopped Disconnect the spark plug wire and keep the wire away from the spark plug to prevent accidental starting Check the blade and engine mounting bolts at frequent intervals for proper tightness Also visually inspect blade for damage e g excessive
20. dle Bearing 12 716 3018 Snap Ring 24 761 3049 Shoe Brake 31 Model 53AA1A3G401 To Starter 32 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 710 1314 Socket Screw 5 16 18 x 625 24 6712 0161 Hex Lock Nut 10 24 2 736 0119 Lock Washer 5 16 25 736 0607 Lock Washer 5 16 3 721 0208 Gasket 26 712 0431 Flange Lock Nut 3 8 16 4 1751 0619 Exhaust Pipe 27 736 0258 Flat Washer 385 x 1 0 5 710 0642 Hex Washer Screw 1 4 20 x 750 28 747 3362 Rear Belt Retainer Rod 6 710 3178 Carriage Bolt 3 8 16 x 75 29 736 3010 Flat Washer 407 x 812 7 751B213146 Casing Clamp 30 710 1007 Hex Washer Screw 3 8 16 x 1 5 8 710 1237 Hex Washer screw 10 32 x 625 31 603 0317 Clutch Retainer Assembly 9 703 2859 Muffler Bracket 32 726 3008 Heat Shield Cable Clip 10 703 3004 Muffler Guide 33 710 0502A Hex Washer Screw 3 8 16 x 1 25 11 751 3140 Oil Drain 34 754 3100 V Belt 12 751 3142 Oil Drain Cap 35 756 3060A Transmission Drive Pulley 13 1751 3141 Oil Drain Hose 36 714 0128 Key 14 751 0564 Muffler Deflector 37 717 3467 Electric Clutch 15 751 0617 Muffler 38 750 3106 Spacer Clutch 16 710 0148 Hex Washer Screw 8 32 x 375 39 736 0171 Lock Washer 7 16 17 726 0205 Hose Clamp 40 710 0510 Hex Cap Screw 7 16 20 x 3 0 18 751 0535 Fuel Line Hose 41 712 0291 Hex Lock Nut 1 4 20 19 749 3048 Fuel Line 42 736 0
21. e grease fittings one on each wheel spindle and one in middle of caster assembly The caster wheels have one grease fitting on each wheel Lubricate these with a grease gun at least once a season See Figure 14 Deck Lift Pivot Lift Handle The deck lift pivot assembly has grease fittings on each end and the lift handle has a grease fitting on its lower side Lubricate with a grease gun at least once a season See Figure 14 Mower Deck The mower deck may have grease fittings located on the idler assembly or the spindle assemblies Deck Lift Pivot Grease Fittings XS Control Tower Grease Fittings Pivot Bar Grease Fitting Caster Wheel Spindle Grease Fitting Caster Wheel Grease Fitting Mower Deck Grease Fittings Figure 14 Engine Refer to the separate engine manual for engine maintenance instructions Service air cleaner every 25 hours under normal conditions Clean every few hours under extremely dusty conditions To service the air cleaner refer to the separate engine manual The spark plug s should be cleaned and the gap reset once a season Spark plug replacement is recommended at the start of each mowing season Check engine manual for correct plug type and gap specifications Fuel Tank The fuel tank cap is located on the left rear fender panel Remove the fuel cap by unscrewing and fill the gas tank from
22. e place for future and regular elerenico anelioporoelngreplacement pars 13 Mow only in daylight or good artificial light 2 Only allow responsible individuals familiar with the 14 Do not operate the machine while under the instructions to operate the machine Know controls i influence of alcohol or drugs ana tow to Slop HS machine quickly 15 Watch for traffic when operating near or crossing 3 Do not put hands or feet under mower deck or near roadways rotating parts 16 Use extra care when loading or unloading the 4 Clear the area of objects such as rocks toys wire etc which could be picked up and thrown by the blade A small object may have been overlooked and could be accidentally thrown by the mower in any direction and cause injury to you ora bystander To help avoid a thrown objects injury keep children bystanders and helpers at least 75 17 feet from the mower while it is in operation Always wear safety glasses or safety goggles during operation or while performing an adjustment or 18 repair to protect eyes from foreign objects Stop the blade s when crossing gravel drives walks or machine into a trailer or truck This unit should not be driven up or down a ramp onto a trailer or truck under power because the unit could tip over causing serious personal injury The unit must be pushed manually on a ramp to load or unload properly Never make a cutting height adjustment while engine is running if operator must dismo
23. ed faulty or gap too wide Dirty air cleaner Reset gap to 030 or replace spark plug Clean air cleaner Excessive vibration Cutting blade loose or unbalanced Bent cutting blade Tighten blade and adapter Balance blade Replace blade Mower will not mulch grass Engine speed too low Wet grass Excessively high grass Dull blade Set throttle at full throttle Do not mow when grass is wet wait until later to cut Mow once at a high cutting height then mow again at desired height or make a nar rower cutting swath 1 2 width Sharpen or replace blade Uneven cut Wheels not positioned correctly Dull blade Uneven tire pressure Place all four wheels in same height posi tion Sharpen or replace blade Equal tire pressure in all four wheels 21 Model 53AA1A3G401 22 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 731 3326 Engine Cover 27 738 0296 Shoulder Screw 437 x 286 2 731 3263 Control Handle 28 712 0185 Speed U Type Nut 1 4 20 3 710 0451 Carriage Bolt 5 16 18 x 750 29 732 0830 Spring Clip 4 735 0251 Foot Pad 30 720 0302 Lever 5 731 3185 Bellow 31 731 3195A Control Panel LH 6 712 0431 Flange Lock Nut 3 8 16 32 726 3047 Push Nut 7 703 2807B Mounting Bracket 33 603 0424 Control Panel Asm LH 8 710 3168 Carriage Bolt 3 8 16 34 723 3042 Snap Bushing 9 749 3081 Cruise
24. er disposal laws and regulations Improper disposal of fluids and materials can harm the environment and the ecology Prior to disposal determine the proper method to dispose of waste from your local Environmental Protection Agency Recycling centers are established to properly dispose of materials in an environmentally safe fashion Use proper containers when draining fluids Do not use food or beverage containers that may mislead someone into drinking from them Properly dispose of the containers immediately following the draining of fluids DO NOT pour oil or other fluids into the ground down a drain or into a stream pond lake or other body of water Observe Environmental Protection Agency regulations when disposing of oil fuel coolant brake fluid filters batteries tires and other harmful waste WARNING YOUR RESPONSIBILITY Restrict the use of this power machine to persons who read understand and follow the warnings and instructions in this manual and on the machine 4 DANGER AVOID SERIOUS INJURY OR DEATH KEEP HANDS AND FEET AWAY FROM ROTATING PARTS REMOVE OBJECTS THAT CAN BE THROWN BY THE BLADE IN ANY DIRECTION WEAR SAFETY GLASSES DO NOT MOW WHEN CHILDREN OR OTHERS ARE AROUND NEVER CARRY CHILDREN USE EXTRA CAUTION ON SLOPES DO NOT MOW SLOPES GREATER THAN 15 MOW UP AND DOWN NOT ACROSS AVOID SUDDEN TURNS USE LOW GEAR A DANGER KEEP HANDS AND FEET AWAY DO NOT OPERATE MOWER UNLESS THIS GUARD OR
25. h low engine oil can severely damage the engine Battery The BATTERY indicator light will illuminate any time the ignition key is in the ON position and the engine is not running If it illuminates while the engine is running then the battery is in need of a charge Refer to the MAINTENANCE section of this manual for the proper battery charging procedure Fuel The fuel tank is near empty and it needs to be filled with clean and fresh gasoline Low Fuel Engine Oil Battery Figure 6 Brake Pedal and Parking Brake Pedal The brake pedal is located on the lower left side of the control tower and it is used to engage the brake in order to slow down or stop the unit It also is used to engage the parking brake See Figure 1 and Figure 7 Parking Brake Pedal The parking brake pedal is located on the lower right side of the control tower Engage the parking brake when the unit is not in use See Figure 7 e Push down on the brake pedal and hold e Push down on the parking brake pedal and hold Release brake pedal to lock parking brake engagement e To release parking brake pedal press down on brake pedal and release Drive Handles Speed Control Bar Parking Brake Pedal Figure 7 Drive Handles The drive handles left and right are located at the top of the control tower The drive handles are used to move steer and stop the Z Series The drive handles will return toward the neutral position w
26. hen released however the driver should place the drive handles in the neutral position so the unit will not move If the drive handles are not placed in the neutral position the Z Series may creep See Figure 1 and Figure 7 When the engine is running the unit will move in accordance with the drive handles push pull or both as they are moved from the neutral position When the drive handles are released they immediately return towards the neutral position as the unit slows to a stop position while the engine continues to run The rear wheels move and steer the unit The left drive handle controls the left rear wheel and the right drive handle controls the right rear wheel When a drive handle is moved forward the respective wheel turns forward When a drive handle is moved backward the respective wheel turns in reverse Each drive handle has a range in the forward position push and the reverse position pull The drive handles can be moved together in the same direction or independent of each other in any combination i e left push right pull refer also to the Quick Reference OPERATION section See Figure 8 Speed Control Bar Wing Nut Figure 8 Speed Control Bar The speed control bar is connected to the console with two wing nuts and it is used as a grab bar for entry or exit from the tractor and allows for pre set maximum travel speed See Figure 1 and Figure 8 Loosen the wing nut
27. ion 1 0 OD x 6 14 LG 4 703 2559 Stop Bracket 33 736 0100 Flat Washer 531 ID x 1 25 OD 5 703 2945 Pulley Shield LH 34 603 0584 Deck Mounting Plate Asm 6 703 3237 Pulley Shield RH 35 736 0187 Flat Washer 64 ID x 1 24 OD 7 712 3004A Flange Lock Nut 5 16 18 36 710 3037 Hex Cap Screw 3 8 16 x 1 75 8 737 3000 Grease Fitting 3 16 37 738 0988 Shoulder Spacer 9 603 0580 Rod Assembly 38 750 3164 Spacer 635 ID x 2 0 LG 10 710 1336 Spindle Bolt 3 4 16 x 4 25 39 703 3147 Idler Pivot Arm 11 756 3089 Pulley 40 754 3092 V Belt 12 738 0213 Shoulder Screw 41 731 3005 Roller 13 736 0192 Flat Washer 531 ID x 93 OD 42 710 1260A Hex Washer Screw 5 16 18 x 750 14 732 0851A Extension Spring 75 OD x 8 63 LG 43 742 3033 Blade 15 750 0151 Spacer 550 ID x 750 OD 44 712 3078 Hex Flange Nut 3 4 16 16 603 0316 Deck Assembly 42 45 748 3065 Spindle Spacer 17 711 3358 Pin Roller 46 710 3178 Carriage Bolt 3 8 16 x 75 LG 18 712 0431 Lock Flange Nut 3 8 16 47 714 0115 Cotter Pin 19 710 3151 Hex Cap Screw 5 8 18 x 4 25 48 747 3013 Support Pin 20 736 0258 Flat Washer 385 ID x 1 0 OD 49 715 3003 Pin 21 736 0290 Flat Washer 5 8 ID x 1 0 OD 50 732 0802 Spring Compression 22 741 0524 Bearing 625 ID x 1 57 OD 51 736 0160 Flat Washer 536 ID x 930 OD 23 716 3020 Snap Ring 52 731 1032 Chute Asm 24 756 0627 Flat Idler Pulley 53 710 0751 Hex Cap Screw 1 4 20 x 620 25 756 3103 Double Pulley 54 736 0
28. ion or the parking brake disengaged it automatically shuts the engine off Starting Engine Insert the key into the ignition switch Move the choke lever to the full choke position all the way toward the front of the unit e Move the throttle lever to the FAST Rabbit position all the way toward the front of the unit NOTE Less choking may be required due to engine temperature variance If the engine is warm choking may not be necessary e Push the PTO power take off switch to OFF e Fully depress the brake pedal e Turn the ignition switch to the START position and release it as soon as the engine starts It will return to the ON position e Move the choke lever to the OFF position rearward NOTE f starting problems are encountered refer to the TROUBLESHOOTING section Driving the Z Series Set the throttle to the fastest position rabbit Release the parking brake by depressing the parking brake pedal e Gradually move the drive handles in the desired direction referring to the Quick Reference Chart NOTE The Z Series speed is based on the position of the drive handles Push the handles forward to increase speed and back toward neutral for slower speeds Driving On Slopes Before operating the Z Series on any slope e Use the SLOPE GAUGE to determine if the slope is safe for operation A e If safe for operation walk the slope and look for hazards such as rocks mounds ruts stumps or o
29. ke Adjustment Position the Z Series on a level surface and move the throttle lever to the slowest position turtle Stop the engine remove the key from the ignition and engage the parking brake e Release both hydraulic relief levers From the rear push on the frame and try to move the Z Series If you can move it then the brake force must be increased Go to ADJUSTING BRAKE FORCE If you can not move it the go on to next step e Release the parking brake and try again to move the Z Series by pushing If you can not move it then the brake force must be decreased Go to ADJUSTING BRAKE FORCE If you can move it then you are done no adjustment necessary Measure Gap Brake Arm Adjusting Brake Force Place the Z Series on level surface without the brake engaged and place blocks behind the wheels e Turn the engine OFF and remove the key from the ignition e From underneath the Z Series directly behind the caster wheel pivot bar locate the brake rods There is one on the right and one on the left See Figure 11 The factory sets a 1 16 gap minimum between the brake arm and frame of the Z Series More adjustment may be necessary If increased force is needed then rotate brake rods clockwise If decreased force is needed then rotate brake rods counterclockwise Repeat process on the other brake rod e Check the operation of the brakes before operating If the adjustment does not help see y
30. l the support pin out and align with holes in hanger bracket and lift link e Release the support pin so that it goes through both holes to secure deck Repeat these steps for other side of the deck From the rear attach the belt around the clutch pulley Engage tension bar by moving it into the bracket to maintain belt tension and replace belt covers 20 Mower Blades A e Secure the mower blade by putting a piece of wood between the blade and the housing See Figure 28 e Remove the hex flange nut that secures the blade to the spindle assembly WARNING The mower blades are sharp and can cause severe injury Always protect hands by wearing heavy leather work gloves to grasp blades Figure 28 It is extremely important that each cutting blade edge be ground equally to maintain proper blade balance An unbalanced blade will cause excessive vibration when rotating at high speeds may cause damage to the unit or result in personal injury The blade can be tested by balancing it on a round shaft screwdriver Grind metal from the heavy side until it balances evenly When replacing the blade be sure to install the blade with the side of the blade marked Bottom or with a part number stamped in it facing the ground when the mower is in the operating position IMPORTANT Tighten the hex nut that secures mower blade to spindle to 100 ft lbs WARNING Periodically inspect the blade A adapter for
31. lifting device e With quarter inch by seven inch pins still installed in the top and bottom linkage arms loosen the jam nuts at both the front and rear ends of linkage that runs from bottom linkage arms to hydrostatic pumps See Figure 13 Spherical Rods Figure 13 e Set parking brake and start the engine set throttle at full speed Make sure that the PTO is OFF e Rotate rods lengthen or shorten to bring each hydrostat to neutral NOTE The control linkage going to the hydrostatic pump has left handed threads at the pump and right handed threads at the tower Tighten the jam nuts earlier loosened and reassembled the safety switches Remove quarter inch by seven inch pins from top and bottom holes e Reassemble body panels and drive handle assembly Make sure that all hardware is tightened SECTION 6 MAINTAINING YOUR Z SERIES WARNING Before performing any maintenance or repairs stop the engine disconnect the spark plug wire and ground against the engine to prevent unintended starting A Lubrication Engine Lubricate the engine with motor oil as instructed in the separate engine manual packed with your unit Control Tower There are two grease fittings that are located on the right side of tower Lubricate both with a grease gun at least once a season The control tower cover must be removed to lubricate See Figure 14 Caster Assembly Wheels There are thre
32. ly 5 0 11 727 3153 Outlet Hose LH 45 703 2888 Idler Bracket 12 710 0216 Hex Cap Screw 3 8 16 x 75 46 712 3004A Flange Lock Nut 5 16 18 13 712 0455 Retainer Nut 3 8 16 47 710 3103 Hex Cap Screw 5 16 18 x 2 0 14 747 3360A Belt Retainer Rod RH 48 727 3100 Connection Fitting 1 2 x 3 8 15 710 0378 Hex Cap Screw 5 16 18 x 2 5 49 603 0358B Skid Plate Assembly 16 736 3089 Flat Washer 5 16 50 747 3361 Belt Rod LH 17 723 3071 Filter Element 51 603 0450 Support Pump Assembly 18 731 1449A Fan Blade 52 710 3178 Carriage Bolt 3 8 16 x 75 19 712 0333 Hex Nut 1 2 20 53 749 3040 Frame Strut 20 703 3168 Mounting Pulley Bracket 54 736 0921 Lock Washer 1 2 21 756 0625 Roller Cable 55 710 1189 Hex Washer Screw 12 24 x 625 22 738 0924 Hex Shoulder Screw 1 4 28 x 375 56 756 0974 Transmission Pulley 23 703 3169 Retainer Cable Bracket 57 732 0729 Wire Ring 24 712 0117 Lock Nut 1 4 28 58 736 0185 Flat Washer 25 618 3165 Complete Transmission Assembly LH 59 710 3144 Hex Cap Screw 3 8 16 x 2 0 26 712 3050 Lug Nut 60 618 3164 Complete Transmission Assembly RH 27 710 0347 Hex Cap Screw 3 8 16 x 1 75 61 710 0751 Hex Cap Screw 1 4 20 x 62 28 736 0258 Flat Washer 385 ID x 1 0 OD 62 703 2907 Bearing Cup 29 756 0627 Flat Idler Pulley 3 5 OD 63 741 0600 Ball Bearing 30 703 3174 Mounting Bracket Cable 64 756 3085 Idler Pulley 5 0 31 712 3019 Hex Nut 7 16 14 65 712 0324 Hex Lock Nut 1 4 20 32
33. ments and repeat steps if necessary e Tighten the rear jam nuts after adjustments of the front lift rods are completed Front Lift Rods Figure 21 Removing The Mower Deck Turn the pulley counterclockwise until the belt is completely off the pulley WARNING Do not remove deck immedi e Locate the clutch pulley in the rear of the tractor A ately after operating the tractor Allow the below the muffler to remove the belt from the pulley engine and other moving parts ample time See Figure 24 to cool down e Position the Z Series on a hard flat surface and engage the parking brake e Move the lift handle to the L position e Remove belt covers by removing hex nuts that hold on the covers See Figure 22 e E Belt Le A Val Covers Figure 24 From the front of the Z Series pull the mower deck towards you to release the retaining arms from the mower deck Lift and hold up the retaining arms Move the mower deck toward the rear of the tractor until the front lift rods clear the mower deck From the right side pull the mower deck out from under the tractor See Figure 25 Figure 22 e Release the tension bar by pushing bar out of the bracket Lift the tension bar over the bracket and allow the bar to rest on the mower deck Pull support pin out to release hanger bracket from lift link and turn support pin until it is against outside of hanger bracket
34. ments taken should be within 1 16 If they are not proceed to the next step e Remove the shoulder screw that holds the lift link to the hanger bracket on the side to be adjusted See Figure 19 Turn the adjustable link the appropriate distance up or down Every 1 2 turn equals 1 32 Support Pin Hanger Bracket Figure 19 Front To Rear e Position the Z Series on a hard level surface and place the PTO switch in the OFF position Engage the parking brake and turn the ignition switch to the OFF position and remove the key Remove spark plug wire s from the spark plug s e Raise the lift handle to the highest setting 7 e Position the mower blades so the ends of each blade point to the front and to the rear of the Z Series See Figure 20 Figure 20 e Measure the distance from the front of the blade tip to the ground and the rear of the blade tip to the ground The front edge of each blade should be lower than its back edge by 1 8 to 1 4 Determine the appropriate distance necessary for proper adjustment and proceed if necessary to the next step e Lower the deck to the lowest position Loosen the rear jam nuts on the front lift rods and turn the front lock nuts clockwise to raise the front of the mower deck or counterclockwise to lower the front of the mower deck See Figure 21 e Raise the deck to the highest position Recheck the blade measure
35. ng Extinguish cigarettes cigars pipes and other sources of ignition Operating Guidelines Study this manual carefully for it has been provided to help you safely operate and maintain this unit and familiarize yourself with all instruments and controls e NORIDERS Keep children and pets away from unit during operation Always look down and behind before and while backing up e Keep safety devices guards shields and switches in place and working e Use the SLOPE GAUGE to determine safe operating areas Go up and down slopes not across e Before leaving operator s position disengage the PTO down engage the parking brake and turn ignition switch to OFF IMPORTANT We do not recommend the use of a pressure washer or garden hose to clean your unit They may cause damage to electric components spindles pulleys bearings or the engine Stopping The Z Series e Bring the Z Series to a stop by pulling the drive handles to the neutral position e Disengage the PTO down Push down on the brake pedal and hold Push down on the parking brake to lock engagement e Turn the ignition to the OFF position Remove the key WARNING Always remove the key from the ignition switch to avoid accidental A starting Safety interlock Switches The engine will not crank or start without the brake pedal fully engaged and the PTO disengaged down e Ifthe operator leaves the unit with the PTO in the Run posit
36. ot have a steering wheel instead drive handles are used to steer and to move the unit When the drive handles are in the full positions pull or push the wheels turn at full soeed based on the throttle setting Positions between neutral and full are proportional across the range based on the throttle setting The quick reference chart indicates the direction the Z Series will move based on the position of the drive handles See Figure 10 Release Handles Neutral Stop Pull Handles Equal Back Push Handles Equal Forward Straight Reverse Straight Forward Full Right Forward And Full Full Right Back and Full Left Right Neutral And Left Forward Left Back Zero Turn Left Forward Zero Turn Right Right Turn 9 S Right Forward And Left Neutral Right Neutral And Left Back Right Back And Left Neutral Left Turn Reverse Left Reverse Right Ry gy ODO Figure 10 SECTION 5 MAKING AD USTMENTS Adjusting the Mower Deck Height Adjusting the Seat Position To push or pull the lift lever depress and hold the e Lift the seat adjustment lever Refer to Figure 4 button Refer to Figure 5 e Slide the seat either forward or back to the desired Move the handle up down to the desired location location Release button at the desired position Lock the seat in position by releasing the seat adjustment lever Checking the Bra
37. our dealer Figure 11 Steering Adjustment Remove the ignition key from ignition switch and detach the bottom of the rubber boot cover on the drive handles Slide the boot cover all the way up toward the drive handles to access the drive handle bolts e Remove both bolts securing the drive handles and remove the drive handles and the rubber boot e Remove the four bolts securing the retaining plate to the control tower cover Pull up on the cover and slide up and over the control tower Remove both safety switches from their respective holders by squeezing together on the retaining clips while gently pushing upward until the switches clear the brackets Remove bolts that secure linkage to upper control handles and lower control arms The shock absorbers should remain connected to linkage See Figure 12 Figure 12 Insert quarter inch by seven inch pin or equivalent through the top and bottom alignment holes of the control arms to secure arms at positive neutral e With the shock absorber still bolted to linkage loosen the jam nuts at both ends of the linkage so the alignaball adjustment can be made e Adjust the alignaball until retaining bolts slips through alignaball and hole in arm with little effort Re install bolts washers and nuts in all four ends of linkage Tighten jam nuts against alignaball ends to keep ends from turning Lift rear wheels off ground using floor jack or other suitable
38. r eeettt tay 21 22 PANS EIS bas eye i ea th eae conio dla tace o nd ae O FINDING MODEL NUMBER This Operator s Manual is an important part of your new Z Series It will help you assemble prepare and maintain the unit for best performance Please read and understand what it says Before you start assembling your new equipment please locate the model plate on the equipment and copy the information from it in the space provided below The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer You can locate the model number by opening the engine cover and looking down at the battery stand It is located on the rear face of the battery stand A sample model plate is explained below For future reference please copy the model number and the serial number of the equipment in the space below Model Number Serial Number Copy the model number here Copy the serial number here MTD MTD PRODUCTS INC CLEVELAND OHIO 44136 CALLING CUSTOMER SUPPORT If you have difficulty assembling this product or have any questions regarding the controls operation or maintenance of this unit please call the Customer Support Department Call 1 330 220 4MTD 4683 or 1 800 800 7310 to reach a Customer Support representative Please have your unit s model number and serial number ready when you call See previous section to locate this information You will
39. rol panel and it is used to start the engine Insert key into en the ignition switch and turn clockwise to the START position Release key to the ON position once engine Ignition Light Switch has fired The ignition switch is also used to operate the headlights when the switch is in the ON LIGHT position On See Figure 1 and Figure 2 Light Hour Meter The hour meter is located on the right control panel and Hour Meter the meter s display stays on continuously The hour value is the number of hours of engine s operation Use the hour value to determine when maintenance is required See Figure 1 and Figure 2 Figure 2 Electric PTO Power Take Off Switch The PTO switch is located on the right control panel and it is used to control the engagement of the cutting blades When the knob is up the cutting blades are engaged When the knob is down the cutting blades are disengaged See Figure 1 and Figure 2 NOTE The PTO knob must be in the disengaged OFF position when starting the engine when shifting into reverse and when the operator leaves the seat Throttle Lever and Choke Lever The choke lever is located on the left control panel Activating the choke control closes the choke plate on the carburetor and aids in starting the engine during initial or cold engine start up During normal operation the choke lever should be in the OFF position Push the lever forward to turn choke on and pull choke le
40. s located on either side of the plastic console e Rotate speed control bar to desire location e Tighten wing nut to secure speed control bar NOTE Limit loosening the wing nuts to 1 1 2 turns This will insure proper assembly of the screw not visible on the other side of the plastic console The speed control bar also aids the drive handles in making perfect U turns To move forward grasp both drive handles and the speed control bar at the same time then release the left drive handle to turn left and then grasp it again to continue straight ahead or release the right drive handle to turn right Refer also to the Quick Reference Chart located in the OPERATION Section SECTION 4 OPERATING YOUR Z SERIES WARNING Read understand and follow all instructions and warnings on the machine and in this manual before operating Gas and Oil Fill Up Service the engine with gasoline and oil as instructed in the separate engine manual packed with your mower Read instructions carefully IMPORTANT Your unit is shipped with oil however you MUST check the oil level before operating Be careful not to overfill Overfilling with oil may cause the engine to smoke This will result in poor engine performance and could cause permanent engine damage A WARNING Use extreme care when handling gasoline Gasoline is extremely flammable and the vapors are explosive Never fuel machine indoors or while the engine is hot or runni
41. sion in p JOEL y y R tr l set padobrake st i d on the mower deck or contact the engine exhaust MARRA SS RAR SRO NS SUI hee presenting a potential fire hazard key before dismounting SLOPE OPERATION I ons Slopes are a major factor related to loss of control and tip over accidents which can result in severe injury or death All slopes require extra caution If you cannot back up the slope or if you feel uneasy on it do not mow it For your safety use the slope gauge included as part of this manual to measure slopes before operating this unit on a sloped or hilly area If the slope is greater than 15 as shown on the slope gauge do not operate this unit on that area or serious injury could result Mow up and down slopes not across Remove obstacles such as rocks limbs etc Watch for holes ruts or bumps Uneven terrain could overturn the machine Tall grass can hide obstacles Use slow speed Choose a low enough gear so that you will not have to stop or shift while on the slope Always keep machine in gear when going down slopes to take advantage of engine braking action Follow the manufacturer s recommendations for wheel weights or counterweights to improve stability Use extra care with grass catchers or other attachments These can change the stability of the machine Keep all movement on the slopes slow and gradual Do not make sudden changes in speed or direction Rapid engagement or braking could cause the fron
42. t 8 603 0370 Pivot Link Bearing Ass y 28 603 0401 Lift Arm Ass y 9 603 0313 Lift Shaft Ass y 29 738 0183 Shoulder Screw 3 8 16 50 x 21 10 703 2621 Adjustable Deck Lift Link 30 603 0257 Fork Lift Ass y 11 1703 2780 Lift Parallel Link 31 710 3011 Hex Cap Screw 3 8 16 x 2 25 12 603 0327 Handle Bearing Ass y 32 747 3276 Lift Link Rod 13 1703 2772 Deck Height Adjustable Plate 33 736 0300 Flat Washer 406 x 875 14 738 3150 Lift Handle Shoulder Screw 34 747 3267 Handle Arm 15 712 3020 Top Lock Jam Nut 3 8 16 35 750 3200 Spacer 448 ID x 688 OD 16 603 0423 Shaft Mounting Bracket RH 36 712 0290 Lock Nut 7 16 14 17 1710 3083 Hex Cap Screw 5 16 18 x 1 375 37 712 3009 Hex Center L Nut 5 16 18 18 711 0773 Eye Bolt Adjustable Link 38 710 0431 Hex Screw 3 8 16 x 1 50 19 738 0380 Shoulder Screw 3 8 16 39 737 0280 Grease Fitting 20 712 0206 Hex Nut 1 2 13 40 747 3406 Front Mounting Rod Bracket 39 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 712 3075 Hex Lock Nut 1 0 14 11 736 0227 Flat Washer 3 8 x 1 5 2 736 0274 Flat Washer 12 1731 0374 Flange Bearing 1 0 ID 3 603 0389A Pin Ass y Pivot 13 737 0280 Grease Fitting 4 737 3090 Adapter 1 8 NPTF x 1 8 NPTF 14 603 0363 Castor Wheel Bracket 5 737 3072 Grease Fitting 65 w Extension 15 712 0239 Hex Center Lock Nut 1 2 20 6 712 0431 Hex Flange Lock Nut 3 8 16 16 171
43. t of the machine to lift and rapidly flip over backwards which could cause serious injury Avoid starting or stopping on a slope If tires lose traction disengage the blade s and proceed slowly straight down the slope DO NOT E 2 5 CH Do not turn on slopes unless necessary then turn slowly and gradually downhill if possible Do not mow near drop offs ditches or embankments The mower could suddenly turn over if a wheel is over the edge of a cliff or ditch or if an edge caves in Do not mow on wet grass Reduced traction could cause sliding Do not try to stabilize the machine by putting your foot on the ground Do not use grass catcher on steep slopes ILDREN Tragic accidents can occur if the operator is not alert to the presence of children Children are often attracted to the machine and the mowing activity Never assume that children will remain where you last saw them Keep children out of the mowing area and in watchful care of an adult other than the operator Be alert and turn machine off if children enter the area Before and when backing look behind and down for small children Never carry children They may fall off and be seriously injured or interfere with the safe machine operation Never allow children under 14 years old to operate the machine Children 14 years and over should only operate machine under close parental supervision and proper instruction Use extra care when approaching
44. t to misuse abuse com mercial use neglect accident improper maintenance alteration vandalism theft fire water or damage because of other peril or natural disaster Damage resulting from the installation or use of any accessory or attachment not approved by MTD Products Inc for use with the product s covered by this manual will void your warranty as to any resulting damages Normal wear parts or components thereof are subject to separate terms as follows All normal wear part or compo nent failures will be covered on the product for a period of 90 days regardless of cause After 90 days but within the two year period normal wear part failures will be covered ONLY IF caused by defects in material or workmanship of OTHER component parts Normal wear parts and compo nents include but are not limited to belts blades blade adapters grass bags rider deck wheels seats snow thrower skid shoes shave plates and tires Batteries are covered by a 90 day limited replacement warranty HOW TO OBTAIN SERVICE Warranty service is available WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER To locate the dealer in your area please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD PROD UCTS INC by calling 1 800 800 7310 or writing to RO Box 368022 Cleveland Ohio 44136 9722 This limited warranty does not provide coverage in the following cases a The engine or component p
45. ther irregularities After removing debris and identifying irregularities of the slope back the Z Series up the steepest slope you intend to work If it cannot negotiate the slope in reverse the slope is too steep Use the following guidelines when operating on a slope e Drive UP and DOWN slopes Never drive across slopes Avoid turns when driving on a slope If you must turn turn down the slope Turning up a slope greatly increases the chance of roll over Avoid stopping when driving on a slope If you must stop start slowly and smoothly to reduce the chance of flipping the Z Series over backwards WARNING Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet The tractor could overturn and cause serious injury Mowing For best results it is recommended that the first two laps be cut with the discharge thrown towards the center After the first two laps reverse the direction to throw the discharge to the outside for the balance of cutting This will give a better appearance to the lawn e Donotcut grass too short Short grass invites weed growth and yellows quickly in dry weather Mowing should always be done with the engine at full throttle Do not mow at high ground speed especially if mulching or bagging Under heavier conditions it may be necessary to go back over the cut area a second time to get a clean cut Do not attempt to mow heavy br
46. this point Checking Hydraulic Oil Check the oil level of hydraulic units only when the engine is OFF During initial break in first five hours of operation check oil before each use and then check after every 50 hours of operation G Hydraulic Fill Plug Dipstick Hydraulic Fill Figure 15 Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase See Figure 15 Remove the hydraulic fill plug dipstick and read the level If hydraulic oil level is inside operating range then do nothing If hydraulic oil level is below operating range the add hydraulic oil before operating Also check for leaks If hydraulic oil level is above operating range then drain excess oil before operating e Reinstall the dipstick completely into the fill tube Adding Hydraulic Oil WARNING Never overfill the hydraulic A units Damage can result if the oil level is not within the operating range When adding hydraulic oil do so in small quantities and recheck the oil level before adding more e Place the Z Series on a level surface and engage the parking brake e Stop the engine and remove the key from the ignition switch e Clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase e Remove the hydraulic fill plug and insert a clean funnel into the hydraulic fill point See Figure 15 Pour proper amount of hydraulic oil level
47. ting 10 710 3178 Carriage Bolt 3 8 16 x 75 29 737 3072 Grease Fitting w Tube 11 711 1111 Control Shaft 30 737 3073 Adapter 1 4 20 12 711 1124 Pin 31 738 0296 Shoulder Bolt 437 Dia x 268 13 712 0312 Hex Jam Nut LH 3 8 24 32 738 3153 Shoulder Bolt 14 1712 0365 Hex Center Lock Nut 33 741 3063 Sleeve Bearing 15 712 0431 Hex Flange Lock Nut 3 8 16 34 747 3281 Control Rod LH 31 5 8 16 712 0453 Retainer 1 4 20 35 747 3282 Control Rod RH 35 3 8 17 712 0711 Hex Jam Nut 3 8 24 36 736 0300 Flat Washer 406 ID x 87 OD 18 712 3001 Hex Jam Nut 3 8 24 37 703 3405 Support Plate 19 712 3004A Hex Flange Lock Nut 5 16 18 27 Model 53AA1A3G401 28 Model 53AA1A3G401 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 737 3069 Pipe Plug 35 603 0102 Shoulder Screw 2 737 3070A Pipe Dipstick 36 732 0478 Extension Spring 6 12 Lg 3 603 0639 Hydraulic Tank Assembly 37 712 0431 Flange Lock Nut 3 8 16 4 727 3116 Connection Fitting 38 712 3027 Lock Nut 1 4 20 5 721 0223 Seal 39 703 3380 Declutching Cable Bracket 6 738 0940 Drain Plug 40 736 0119 Lock Washer 5 16 7 727 3120 Inlet Tube LH 41 738 0704 Shoulder Screw 8 727 3155 Tee Fitting 42 710 3008 Hex Cap Screw 5 16 18 x 75 9 727 3154 Outlet Hose RH 43 710 3011 Hex Cap Screw 3 8 16 x 2 25 10 727 3121 Inlet Tube RH 44 603 0362 Idler Pulley Assemb
48. unt to do so Wear sturdy rough soled work shoes and close fitting slacks and shirts Do not wear loose fitting clothes or jewelry They can be caught in moving roads a y arts Never operate a unit in bare feet sandals or 5 Be sure the area is clear of other people before a p mowing Stopimachine FANYONE enters INE arsa 19 Check overhead clearance carefully before driving 6 Never carry passengers 7 Disengage blade s before shifting into reverse and backing up Always look down and behind before and while backing under power lines wires bridges or low hanging tree branches before entering or leaving buildings or in any other situation where the operator may be struck or pulled from the unit which could result in 8 Be aware of the mower and attachment discharge P direction and do not point it at anyone Do not serous MUN ae 20 Disengage all attachment clutches thorough operate the mower without either the entire grass gag ries depress the brake pedal and shift into neutral catcher or the chute guard in place P P before attempting to start engine an ON EA di sona is machine 21 Your mower is designed to cut normal residential ped Se CHANG OPETANON ANC EXCESSIVE grass of a height no more than 10 Do not attempt to mow through unusually tall dry grass e g 10 Never leave a running machine unattended l O asture or piles of dry leaves Debris may build u Always turn off blade s place transmis
49. ush weeds or extremely tall grass Your Z Series is designed to mow lawns not clear brush Keep the blades sharp and replace the blades when worn Refer to the MAINTENANCE section of the manual for proper blade sharpening instructions Pushing Your Unit To push your unit you will have to first relieve the hydrostatic pumps WARNING The hydraulic relief levers are A near engine parts that can be hot To avoid injury wait until engine parts have cooled before disengaging e Position the Z Series on a flat and level surface and engage the parking brake e Remove the hydraulic relief levers from the lock position There is a lever for the right and left hydraulic pump e Slide the levers into the slots to relieve the hydraulic pumps See Figure 9 Disengage parking brake and push unit Relief Lever Lock Position Unit will not roll Neutral Position Unit will roll Left Relief Lever Shown Figure 9 Quick Reference Chart The Z Series can turn with a zero radius The Z Series uses the rear tires to turn When turning with a zero radius the rear tires are used as the pivot point A conventional tractor can make a circle but it needs a turning radius usually based on the distance between the front and rear wheels With a shorter overall length and a zero turn radius the Z Series has an excellent maneuverability The Z Series does n
50. ver back to turn choke off See Figure 1 and Figure 3 The throttle lever is also located on the left control panel and it is used to regulate the engine speed To get maximum efficiency from cutting the throttle should be in the FAST position when operating the mower Push the throttle lever forward for faster engine speed and pull lever back for slower engine speed See Figure 3 Throttle Lever _ Figure 3 Seat Adjustment Lever The seat adjustment lever is located beneath the seat and it is used to move the seat forward and backward See Figure 4 Pull up on the seat adjustment lever and push the seat forward or back to the desired position e Release the seat adjustment lever so that it locks the seat in place WARNING Do not try to adjust the seat A position while operating the Z Series Figure 4 Lift Handle The lift handle is located on the right fender and it raises and lowers the cutting height of the mower deck The height positions are one through seven and the L is the lock position The lock position is used when removing the mower deck See Figure 1 and Figure 5 Positions Figure 5 Indicator Panel The indicator panel is located at the top of the control tower See Figure 1 and Figure 6 When the corre sponding light is illuminated it indicates Low Engine Oil Stop the tractor immediately and check the engine oil level Continuing to operate wit
51. wire from the light bulb assembly and squeeze the tab on the connector that attaches the wire to the light bulb assembly Pull the wire from the light bulb assembly and turn the light bulb assembly counterclockwise to release it from the light fixture Carefully pull the light bulb out of the light fixture and insert the replacement light bulb into the light fixture Turn the light bulb assembly clockwise until it locks in place and carefully insert the connector into the light bulb assembly Replace the control tower cover and drive handle assemblies Headlight Mounting Bracket Connector a Bulb Figure 17 Changing The Fuse The fuse can be located on a wiring harness ina protective cover between the engine and the battery Remove the old fuse and replace with same rated fuse Battery The battery is sealed and is maintenance free Acid levels can not be checked Always keep the battery cables and terminals clean and free of corrosive build up e After cleaning the battery and terminals apply a light coat of petroleum jelly or grease to the terminals and over the positive terminal boot Always keep the boot positioned over the positive terminal to prevent shorting IMPORTANT If removing the battery for any reason disconnect the NEGATIVE Black wire from it s terminal first follow by the POSITIVE Red wire When reinstalling the battery always connect the POSITIVE Red wire to it s termin
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