MTD 640 Snow Blower User Manual
Contents
1. Belt Replacement A Auger Belts WARNING Disconnect the spark plug wire from the spark plug and ground NOTE It is necessary to remove both belts in order to change either one If changing just one belt be certain to check the condition of the other belt e Remove the plastic belt cover in front of the engine by removing the two self tapping screws See Figure 14 e Drain the gasoline from the snow thrower or place a piece of plastic under the gas cap e Tip the snow thrower up and forward so that it rests on the housing e Remove six self tapping screws from the frame cover underneath the snow thrower See Figure 14 for the location of the hardware Figure 14 e Roll the front and rear auger belts off the engine pulley See Figure 15 Drive Belt Rear Auger Belt Engine an ESC gt Pulley Engine Pulley Pulley Figure 15 e Unhookthe idler spring from the hex bolt on the auger housing See Figure 16 e Back out the stop bolt to allow belts to slip between the bolt and the auger pulley See Figure 17 NOTE t may be necessary to loosen the six hex nuts that fasten the frame to the auger housing e Liftthe rear auger belt from the auger pulley and slip belt between the support bracket and the auger pulley See Figure 16 Repeat this step for front auger belt except models 600 610E e Replace both auger drive belts by following instructions in reverse order l Le S2. OPERATOR S MANUAL Snow Thrower Model 640 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 FORM NO 770 10167C 6 2001 PRINTED IN U S A TABLE OF CONTENTS Content Page Important Safe Operation Practices ii 3 Assembling Your Snow Thrower ii 5 Know Your Snow Thrower ii 7 Operating Your Snow ThroWer i 8 Making AdjUStMents eee aaa aaa aaa 9 Maintaining Your Snow Thrower i 11 Servicing Your Snow ThroWer ui 12 Off Season Storage iii 14 TFOUDIOSNOOUNG iiss siae do ni
3. surrounding areas become hot and can cause a burn Do not touch e Discharge snow downwind whenever possible Slightly overlap each previous path Set the skid shoes 1 4 below the scraper bar for normal usage The skid shoes may be adjusted upward for hard packed snow Adjust downward when using on gravel or crushed rock e Avoid possible starter freeze up Clean the snow thrower thoroughly after each use SECTION 5 MAKING ADJUSTMENTS WARNING NEVER attempt to make any adjustments while the engine is running except where specified in the operators manual A Chute Assembly The distance snow is thrown can be adjusted by changing the angle of the chute assembly Refer to Chute Tilt Control on page 7 Skid Shoe The space between shave plate and ground can be adjusted by raising or lowering the skid shoes Refer to Skid Shoe Adjustment on page 12 Traction Control Refer to Final Adjustments on page 6 to adjust traction control If you are want to check further for correct adjustment proceed as follows WARNING Drain the gasoline out of snow A thrower engine place a piece of plastic film under the gas cap to avoid spillage before beginning the job e Tip the snow thrower forward allowing it to rest on the auger housing e Remove the frame cover underneath the snow thrower by removing six self tapping screws e With the traction control released there must be clearance between the friction wheel and t
4. 0193 Compression Spring 4 684 0036 Handle Ass y Engagement R H 39 732 0746 Torsion Spring 5 684 0037 Handle Ass y Engagement I H 40 735 0199A Bumper Rubber 6 684 0103 Handle Panel Ass y 41 736 0105 Bell Washer 401 x 870 7 710 0458 Carriage Bolt 5 16 18 x 1 75 42 712 3068 Hex Nut 5 16 18 8 710 0276 Carriage Screw 5 16 18 x 1 0 43 736 0159 Washer 349 ID x 879 OD 9 710 0449 Carriage Screw 5 16 18 x 2 25 44 736 0185 Flat Washer 375 ID x 738 OD 10 710 0451 Carriage Bolt 5 16 18 x 75 45 736 0119 Bell Washer 340 ID x 872 OD 11 710 0459A Hex Head Screw 3 8 24 x 1 5 46 736 0275 Flat Washer 344 ID x 688 OD 12 710 0599 Hex Washer Screw 1 4 20 x 50 48 736 0451 Saddle Washer 320 ID x 93 OD 14 710 1003 Hex Washer Screw 10 16 x 625 49 736 0509 Washer Spec 15 710 1880 Hex Cap Screw 5 16 18 51 735 0234 Rubber Grommet 16 710 3015 Hex Cap Screw 1 4 20 x 75 52 746 0778 Z Fitting 17 711 0653 Clevis Pin 53 747 0620A Upper Shift Rod 18 711 0677 Ferrule 54 747 0621 Lower Shift Rod 19 712 0116 Jam Nut 3 8 24 55 747 0877 Rod Cam 20 712 0121 Nut 10 24 56 748 0362 Cam Handle 21 712 0271 Hex Nut 1 4 20 57 748 0363 Pawl Handle Lock 22 710 0788 Hex Washer Screw 1 4 20 x 1 0 58 749 0951 Lower Handle 23 712 3010 Hex Nut 5 16 18 59 749 0952A Upper Handle RH 24 712 3027 Flange Lock Nut 1 4 20 60 749 0953A Upper Handle LH 25 714 0507 Cotter Pin 61 750 0963 Clutch Rod Connector 28 720
5. 0201A Chute Crank Knob 62 784 5619A Shift Handle 29 720 0232 Knob Shift 63 747 0697 Eyebolt Chute Crank 30 720 0274 Grip 64 784 5679 Handle Support Bracket LH 31 720 0284 Wing Nut 65 784 5680 Handle Support Bracket RH 32 726 0100 Push Cap 66 784 5681 Handle Support Bracket LH 33 731 0851A Chute Flange Keeper 67 784 5682 Handle Support Bracket RH 34 731 0921 Upper Chute 68 710 0643 Hex Bolt 5 16 18 x 1 0 35 731 1300A Lower Chute 69 712 0429 Lock Nut 17 Model 640 Auger Clutch 13 or 15 Wheels 16 Wheels Drive Clutch ZL DI 7 N IR a Cd Model 640 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 710 1652 Hex Screw 22 717 1445 Gear 2 784 5688 Drive Cable Guide Bracket 23 714 0126 Key 3 784 5687A Auger Clutch Cable Bracket 24 717 1444 7 Tooth Shaft 4 756 0625 Roller Cable 25 715 0249 Roll Pin 5 738 0924 Hex Screw 1 4 28 26 714 0143 Klik Pin 6 684 0030 Frame Assembly 27 684 0042B Friction Wheel Assembly 7 741 0563 Ball Bearing 28 656 0012A Friction Disc Wheel 8 736 0105 Bell Washer 29 684 0013B Wheel Shift Rod Assembly 9 712 0116 Lock Jam Nut 30 746 0897 Drive Cable 10 741 0598 Hex Flange Bearing 31 748 0190 Spacer 11 736 0188 Flat Washer 32 684 0021 Friction Wheel Bracket Assembly 12 784 5689A Front Support Guide Bracket 33 732 0264 Extension Spring 13 710 05
6. 2 731 1324 Belt Cover 16 756 0569 Pulley Half 3 732 0710 Extension Spring 17 736 0242 Bell Washer 4 710 0627 Hex Screw 5 16 24 x 75 18 736 0505 Flat Washer 5 710 3005 Hex Cap Screw 3 8 16 x 1 25 19 754 0430A Belt 6 05896A Drive Clutch Idler Bracket 20 756 0967 Auger Pulley 7 748 0234 Shoulder Spacer 21 736 0247 Flat Washer 3 8 x 1 25 OD 8 756 0987 Pulley Half 22 736 0331 Bell Washer 9 754 0346 V Belt 23 710 0696 Hex Cap Screw 3 8 24 10 756 0986 Pulley Half 24 748 0360 Adapter Pulley 11 736 0270 Bell Washer 25 710 0654A Hex Screw 3 8 16 x 1 0 12 710 0230 Hex Cap Screw 1 4 28 x 50 26 629 0071 Extension Cord 13 756 0313 Flat Idler 27 OEM 390 987 Electric Start 14 710 1245A Lock Hex Cap Screw 5 16 24 20 Model 640 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 712 0116 Lock Jam Nut 3 8 24 27 736 0169 Lock Washer 3 8 2 756 0178 Flat Idler 28 712 0798 Hex Nut 3 8 16 3 784 5632A Auger Idler Arm 30 784 5580 Snow Shoe 4 710 0459A Hex Cap Screw 3 8 24 x 1 50 31 736 0242 Bell Washer 5 738 0281 Shoulder Screw 32 712 3010 Hex Nut 5 16 18 6 736 0174 Wave Washer 33 784 5581A 24 Shave Plate 7 732 0611 Extension Spring 784 5579A 26 Shave Plate 8 712 3068 Hex Nut 5 16 18 784 5582A 28 Shave Plate 9 712 3010 Hex Nut 5 16 18 34 710 0260 Carriage Bolt 5 16 18 x 62 10 736 0119 Lock Washer 5 16 35 684 0065 Impeller Assembly 11 05931 Housing 36
7. eta lina 14 Parts Listzzasi szata R libere ao ii ii 15 FINDING MODEL NUMBER This Operator s Manual is an important part of your new snow thrower 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 standing behind the unit in the operating position and looking down at the rear frame below the engine 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 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 be asked to enter the serial n
8. holes on the right side of the unit See Figure 11 One Wheel Driving Insert the click pin only through the outside hole of the axle not the rim on the right side of the snow thrower This position gives power drive to the left wheel only making the unit easier to maneuver Both Wheels Driving Insert the click pin through the hole in the hub of the rim and the inside hole on the snow thrower s right axle This position is good for heavy snow as there is power drive in both wheels f Click Pin 4 in Outside Hole Figure 11 IMPORTANT Never operate the snow thrower with the click pin inserted through both the rim and the outside hole in the axle Doing so can result in serious damage to the drive system SECTION 6 MAINTAINING YOUR SNOW THROWER A WARNING Before servicing repairing or inspecting disengage all clutch levers and stop engine Wait until all moving parts have come to a complete stop Disconnect spark plug wire and ground it against the engine to prevent unintended starting Lubrication Chute Directional Control e The worm gear on the chute directional control should be greased with multipurpose automotive grease Wheels e Oil or spray lubricant into bearings at least once a season Pull the klick pins and remove wheels clean and coat axles with a multipurpose automotive grease See Figure 12 Klick Pin Axle Figure 12 Gear Shaft e Lubricate the gear shaft with a good all weat
9. 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 shall 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
10. power Spark plug wire loose Gas cap vent hole plugged Exhaust port plugged Connect and tighten spark plug wire Remove ice and snow from cap Be certain vent hole is clear Clean see Maintenance section of engine manual Engine overheats Carburetor not adjusted properly Incorrect fuel mixture Refer to the engine manual packed with your unit or have carburetor adjusted by an authorized service dealer Drain fuel tank Refill with proper fuel mixture Excessive vibration Loose parts or damaged auger Stop engine immediately and disconnect spark plug wire Tighten all bolts and nuts Make all necessary repairs If vibration continues have unit serviced by an authorized service dealer Unit fails to propel itself Incorrect adjustment of drive cable Drive belt loose or damaged Adjust drive cable Refer to Adjustment section of this manual Replace drive belt Refer to Belt Replacement on page 12 Unit fails to discharge snow Discharge chute clogged Foreign object lodged in auger Incorrect adjustment of drive cable Drive belt loose or damaged Shear bolt s sheared Stop engine immediately and disconnect spark plug wire Clean dis charge chute and inside of auger housing Stop engine immediately and disconnect spark plug wire Remove object from auger Adjust drive cable Refer to Adjustment section of this manual Replace drive belt Refer to Belt Replacement on page 12
11. screws from the frame cover underneath the snow thrower e Remove the klick pins which secure the wheels and remove the wheels from the axle e Using a wrench to hold the shaft loosen but do not completely remove the hex nut and bell washer on left end of gear shaft See Figure 18 e Lightly tap the hex nut to dislodge the ball bearing from the right side of frame Remove the hex nut and bell washer from left end of shaft e Slide the gear shaft to the right and slide the friction wheel assembly from the shaft e Remove the six screws from the friction wheel assembly three from each side Remove the friction wheel rubber from between the friction wheel plate See Figure 19 Friction Wheel Plates J Bearing lo p SY Screws Friction Wheel Rubber Figure 19 e Reassemble new friction wheel rubber to the friction wheel assembly tightening the six screws in rotation and with equal force e Position the friction wheel assembly up onto the pin of the shift rod assembly and slide the shaft through the assembly Reassemble the wheels and the frame cover SECTION 8 OFF SEASON STORAGE A WARNING Never store engine with fuel in tank indoors or in enclosed poorly ventilated areas where fuel fumes may reach an open flame spark or pilot light as on a furnace water heater clothes dryer or other gas appliance e If unit is to be stored over 30 days prepare the engine for storage following inst
12. shipping purposes Check tire pressure and reduce to 15 to 20 psi NOTE f the tire pressure is not equal in both tires the unit may pull to one side or the other Auger Control To check the adjustment of the auger control push forward on the left hand control depressing the rubber bumper on end of control There should be slack in the cable Release the control The cable should be straight Make certain you can depress the auger control against the left handle completely If necessary loosen the hex jam nut and thread the cable in for less slack or out for more slack as necessary Recheck adjustment Tighten jam nut when correct adjustment is reached See Figure 5 Make sure cable is straight Figure 5 Traction Control and Shift Lever To check the adjustment of the traction control and shift lever move the shift lever all the way forward to sixth 6 position With the traction control released push the snow thrower forward The unit should move forward freely Then engage the traction control grip Wheels should stop turning Now release the traction control grip and push the unit again Move the shift lever back to the fast reverse position then all the way forward again There should be no resistance in the shift lever and wheels should keep turning If you feel resistance when moving the shift lever or the wheels stop when they should not loosen the jam nut on the traction control cable and unthrea
13. 38 Lock Hex Screw 34 712 0711 Jam Nut 3 8 24 14 736 0242 Bell Washer 340 ID x 872 OD 35 746 0898 Drive Cable 15 714 0474 Cotter Pin 36 738 0869 Axle 13 Wheels 16 736 0160 Flat Washer 536 ID x 930 OD 738 0830 Axle 16 Wheels 17 710 0788 Hex Washer Screw 1 4 20 37 784 5617A Friction Plate 18 784 5590 Frame Shift Bracket 38 735 0243B Friction Wheel Rubber 19 784 5638 Frame Cover 39 718 0301A Friction Wheel Hub 20 710 1652 Hex Washer TT Screw 1 4 20 40 618 0063 Friction Wheel Bearing 21 736 0351 Flat Washer 760 ID x 50 OD WHEEL ASSEMBLIES MODEL SIZE REF NO 1 REF NO 2 REF NO 3 REF NO 4 REF NO 5 NUMBER WHEEL ASS Y TIRE AIR RIM SLEEVE COMPLETE ONLY VALVE ONLY BEARING 2 31AE600E 13x5 734 1714 734 1527 734 0255 734 1713 741 0401 31AE610E 13x5 734 1714 734 1527 734 0255 734 1713 741 0401 31AE640F 16 5x 4 8 734 1709 734 1530 734 0255 734 1708 741 0401 31AE660G 16 x 6 5 734 1712 734 1525 734 0255 734 1711 741 0401 31AE6COF 16 5 x 4 8 734 1709 734 1530 734 0255 734 1708 741 0401 19 Model 640 IMPORTANT For a proper working machine use Factory Approved Parts V BELTS are specially designed to engage and disengage safely A substitute non OEM V Belt can be dangerous by not disengaging completely REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 710 1652 Hex Washer Screw 1 4 20 x 625 15 712 0181 Lock Jam Nut 3 8 16
14. 715 0114 Pin 12 741 0309 Ball Bearing 37 618 0120A 24 Gear Assembly 13 710 0451 Carriage Bolt 5 16 18 x 75 618 0121A 26 Gear Assembly 14 705 5226 Reinforcement Chute 618 0122A 28 Gear Assembly 15 684 0039C 24 Housing Assembly 38 605 5188A Spiral 24 RH 684 0040C 26 Housing Assembly 605 5192A Spiral 26 RH 684 0041C 28 Housing Assembly 605 5196A Spiral 28 RH 16 712 3010 Hex Nut 5 16 18 39 736 0188 Flat Washer 18 736 0242 Bell Washer 40 741 0493A Flange Bushing 19 741 0475 Bushing 41 605 5189A Spiral 24 LH 20 784 5647 Chute Crank Bracket 605 5193A Spiral 26 LH 21 731 1379C Chute Adapter 605 5197A Spiral 28 LH 22 712 0324 Hex Lock Nut 1 4 20 42 710 0890A Shear Bolt 5 16 18 x 1 5 23 736 0463 Flat Washer 43 712 0429 Lock Nut 5 16 18 25 710 0703 Carriage Screw 1 4 20 x 75 44 741 0245 Hex Flange Bearing 26 710 0604A Hex Washer TT Screw 5 16 18 45 784 5618 Bearing Housing 21 YOUR NOTES Date Comment 22 YOUR NOTES Date Comment 23 MANUFACTURER S LIMITED WARRANTY 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 cha
15. Replace shear bolt s NOTE For repairs beyond the minor adjustments listed above contact your nearest authorized service dealer or call 1 800 800 7310 for the Customer Support Center Refer to separate engine manual packed with your snow thrower for more engine related information 14 SECTION 10 PARTS LIST FOR MODEL 640 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 618 0123 RH Reducer Housing 10 721 0325 Grease Plug 2 618 0124 LH Reducer Housing 11 721 0327 Grease Seal 3 710 0642 Hex Screw 1 4 20 x 75 12 736 0351 Flat Washer 76 x 1 5 x 030 4 711 0908 Spiral Axle 24 13 736 0369 Flat Washer 508 x 1 0 x 020 711 0909 Spiral Axle 26 14 736 0445 Flat Washer 76 x 1 5 x 060 711 0910 Spiral Axle 28 15 741 0662 Flange Bearing 75 x 1 0 x 59 5 714 0161 Key 16 741 0663 Flange Bearing 75 x 1 0 x 925 6 715 0143 Pin Spiral 17 618 0120A Ass y Complete 24 7 717 0528 Worm Gear 20T 618 0121A Ass y Complete 26 8 717 0526 Worm Shaft 618 0122A Ass y Complete 28 9 718 0186 Thrust Collar Model 640 pa 5 1 12 56 ITEM 21 GOES TO GROUND WIRE 55 7 57 OF LIGHT ASSEMBLY 30 4 17 Sa 2 67 Qe Model 640 REF PART REF PART NO NO DESCRIPTION NO NO DESCRIPTION 1 625 0007 Light Ass y Top Mount 36 731 1393 Handle Panel 2 684 0008A Shift Arm Ass y 37 732 0145 Compression Spring 3 705 5204A Chute Crank Ass y 38 732
16. act the Customer Service Department of MTD PROD UCTS INC by calling 1 800 800 7310 or writing to P O Box 368022 Cleveland Ohio 44136 9722 This limited warranty does not provide coverage in the following cases a The engine or component parts thereof These items carry a separate manufacturer s warranty Please refer to the applicable manufacturers warranty on these items b Hydraulic pumps valves and cylinders have a sepa rate one year warranty 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
17. all snow and moisture from the carburetor cover in the area of the control levers Also move control levers back and forth several times Leave throttle control lever in the STOP or OFF position Leave choke control in the FULL choke position e Remove ignition key and disconnect spark plug wire Do not turn key IMPORTANT Do not lose ignition key Keep it in a safe place Engine will not start without the ignition key L Engage Drive With the engine running near top speed move shift lever into one of the five FORWARD positions or two REVERSE positions Select a speed appropriate for the snow conditions that exist Use the slower speeds until you are familiar with the operation of the snow thrower Squeeze the auger control and the augers will turn Release it and the augers will stop e Squeeze traction control and the snow thrower will move Release it and unit will stop Never move shift lever without releasing traction control To Engage Augers e To engage augers and start throwing snow squeeze the auger control against the left handle Release to stop the augers Tire Chains Optional Equipment e Tire chains should be used whenever extra traction is needed If your unit is not equipped with tire chains you may purchase them Operating Tips NOTE Allow the engine to warm up for a few minutes as the engine will not develop full power until it reaches operating temperature WARNING The muffler engine and their
18. d the cable one turn If the wheels do not stop when you engage the traction control grip loosen the jam nut on the traction control cable and thread the cable in one turn Recheck the adjustment and repeat as necessary Tighten the jam nut to secure the cable when correct adjustment is reached SECTION 3 KNOW YOUR SNOW THROWER WARNING Be familiar with all controls and A their proper operation Know how to stop the machine and disengage them quickly Operating Controls Traction Auger Control Lock j Shift Lever Auger Control Discharge Directional Control Figure 6 Shift Lever The shift lever is located in the center of the handle panel The shift lever may be moved into one of eight positions Run engine with throttle in the fast position Use the shift lever to determine ground speed Forward There are six speeds Position one 1 is the slowest Position six 6 is the fastest Reverse There are two reverse R speeds R1 and R2 The R2 closest to the operator all the way back is the faster of the two Auger Control The auger control is located on the left handle Squeeze the control to engage the augers release to stop the augers Remember that traction control must also be released Traction Auger Control Lock The traction control is located on the right handle Squeeze the control to engage the wheel drive Release to stop This same control also locks the auger control so y
19. ed as follows e Rotate choke knob to OFF position e Connect power cord to switch box on engine Plug the other end of power cord into a three prong 120 volt grounded AC receptacle e Push starter button to crank engine As you crank the engine move choke knob to FULL choke position e When engine starts release starter button and move choke gradually to OFF If engine falters move choke immediately to FULL and then gradually to OFF e When disconnecting the power cord always unplug from the three prong receptacle first and then from the snow thrower Stop Engine To stop engine remove the ignition key Do not turn key Disconnect the spark plug wire from the spark plug to prevent accidental starting while equipment is unattended To prevent starter freeze up e Run engine for a few minutes before stopping to help dry off any moisture on the engine e Electric Starter Connect power cord to switch box on engine then to 120 volt AC receptacle With the engine running push starter button and spin the starter for several seconds The unusual sound made by spinning the starter will not harm engine or starter Disconnect the power cord from receptacle first and then from switch box e Recoil Starter With engine running pull starter rope with a rapid continuous full arm stroke three or four times Pulling the starter rope will produce a loud clattering sound which is not harmful to the engine or starter e Wipe
20. ever tamper with safety devices Check their proper operation regularly Disengage all clutch levers and stop engine Wait until the auger impeller come to a complete stop Disconnect the spark plug wire and ground against the engine to prevent unintended starting before cleaning repairing or inspecting Check bolts and screws for proper tightness at frequent intervals to keep the machine in safe working condition Also visually inspect machine for any damage Do not change the engine governor setting or over speed the engine The governor controls the maximum safe operating speed of the engine Snow thrower shave plates and skid shoes are subject to wear and damage For your safety protection frequently check all components and replace with original equipment manufacturer s O E M parts only Use of parts which do not meet the original equipment specifications may lead to improper performance and compromise safety Check clutch controls periodically to verify they engage and disengage properly and adjust if necessary Refer to the adjustment section in this operator s manual for instructions Maintain or replace safety and instruction labels as necessary Observe proper disposal laws and regulations for gas oil etc to protect the environment Prior to storing run machine a few minutes to clear snow from machine and prevent freeze up of auger impeller Never store the machine or fuel container inside where there is an
21. gines Adjust collector housing height to clear gravel or crushed rock surfaces Disengage all clutch levers before starting the engine 7 Never attempt to make any adjustments while engine is running except where specifically recommended in the operators manual Let engine and machine adjust to outdoor temperature before starting to clear snow To avoid personal injury or property damage use extreme care in handling gasoline Gasoline is extremely flammable and the vapors are explosive Serious personal injury can occur when gasoline is spilled on yourself or your clothes which can ignite Wash your skin and change clothes immediately a Use only an approved gasoline container b Extinguish all cigarettes cigars pipes and other sources of ignition c Never fuel machine indoors d Never remove gas cap or add fuel while the engine is hot or running e Allow engine to cool at least two minutes before refueling f Never over fill fuel tank Fill tank to no more than inch below bottom of filler neck to provide space for fuel expansion g Replace gasoline cap and tighten securely h If gasoline is spilled wipe it off the engine and equipment Move machine to another area Wait5 minutes before starting the engine i Never store the machine or fuel container inside where there is an open flame spark or pilot light e g furnace water heater space heater clothes dryer etc j Allow machine to cool at least 5 m
22. gure 13 SECTION 7 SERVICING YOUR SNOW THROWER WARNING Before servicing repairing or inspecting disengage all clutch levers and stop engine Wait until all moving parts have come to a complete stop Disconnect spark plug wire and ground it against the engine to prevent unintended starting A Augers The augers are secured to the spiral shaft with two shear bolts and hex lock nuts If the snow thrower hits a foreign object or ice jam hex bolts will shear e fthe augers will not turn check to see if the bolts have sheared Two replacement shear bolts and hex lock nuts have been provided with the snow thrower For future use order part number 710 0890A shear bolt 5 16 18 x 1 5 and 712 0429 hex lock nut 5 16 18 Shave Plate and Skid Shoes The shave plate and skid shoes on the bottom of the snow thrower are subject to wear They should be checked periodically and replaced when necessary e To remove skid shoes remove the four carriage bolts bellwashers and hex nuts which attach them to the snow thrower Reassemble new skid shoes with the four carriage bolts bell washers cupped side goes against skid shoes and hex nuts Make certain the skid shoes are adjusted to be level e Toremove shave plate remove carriage bolts bell washers and hex nuts which attach it to the snow thrower housing e Reassemble new shave plate making sure heads of the carriage bolts are to the inside of the housing Tighten securely
23. he drive plate in all positions of the shift lever e With traction control engaged the friction wheel must contact the drive plate See Figure 9 Figure 9 If adjustment is necessary e Loosen the jam nut on the traction drive cable and thread the cable in or out as necessary e Retighten the jam nut to secure the cable when correct adjustment is reached e Reassemble the frame cover NOTE If you placed plastic film under the gas cap be certain to remove it before operating the snow thrower Auger Control Refer to details on page 6 to adjust the auger control Shift Rod To adjust the shift rod proceed as follows e Remove hairpin clip and slide shift rod connector up to separate upper and lower shift rod See Figure 10 e Place shift lever in sixth 6 position or fastest forward speed e Rotate shift arm assembly counter clockwise as far as it will go e Thread the upper shift rod on the ferrule to align upper shift rod elbow with lower shift rod hole e Insert cotter pin and slide shift rod connector down Tap to secure the connector into place IMPORTANT Check for correct adjustment of the shift lever rod as instructed on page 6 before operating the snow thrower Upper Shift Rod Shift Rod Connector Shift Arm Assembly Figure 10 Drive Wheels The wheels may be adjusted for two different methods of operation The adjustment is made by placing the click pins in one of two different
24. her multi purpose light grease at least once a season or after every 25 hours of operation IMPORTANT Keep all grease and oil off friction wheel and drive plate Drive and Shifting Mechanism e Remove rear cover Oil any chains sprockets gears bearings shafts and shifting mechanism at least once a season Use engine oil or a spray lubricant Avoid getting oil on rubber friction wheel and aluminum drive plate Gear Case The worm gear case has been filled with grease at the factory If disassembled for repairs lubricate with 2 ounces of shell grease part no 737 0168 IMPORTANT Do not overfill the gear case Damage to the seals could result Be sure the vent plug is free of grease in order to relieve pressure Engine e Refer to the engine manual for maintenance procedures and instructions WARNING When following instructions in the engine manual for draining oil be sure to protect frame to avoid oil dripping onto transmission parts Follow the precautions listed under Stopping Engine to prevent possible freeze up Auger Shaft e Atleast once a season remove shear bolts on auger shaft Oil or spray lubricant inside shaft Also lubricate the auger bearings at least once a season See Figure 13 Shear Bolts sn LB Bearings Bearings Fi
25. hine and disengage them quickly Never allow children under 14 years old to operate this machine Children 14 years old and over should read and understand the operation instructions and safety rules in this manual and should be trained and supervised by a parent Never allow adults to operate this machine without proper instruction Thrown objects can cause serious personal injury Plan your snow throwing pattern to avoid discharge of material toward roads bystanders and the like Keep bystanders helpers pets and children at least 75 feet from the machine while it is in operation Stop machine if anyone enters the area Exercise caution to avoid slipping or falling especially when operating in reverse Preparation 1 Thoroughly inspect the area where the equipment is to be used Remove all door mats newspapers sleds boards wires and other foreign objects which could be tripped over or thrown by the auger impeller Always wear safety glasses or eye shields during operation and while performing an adjustment or repair to protect your eyes Thrown objects which ricochet can cause serious injury to the eyes Do not operate without wearing adequate winter outer garments Do not wear jewelry long scarves or other loose clothing which could become entangled in moving parts Wear footwear which will improve footing on slippery surfaces Use a grounded three wire extension cord and receptacle for all units with electric start en
26. ine without good visibility or light Always be sure of your footing and keep a firm hold on the handles Walk never run Disengage power to the auger impeller when transporting or not in use Never operate machine at high transport speeds on slippery surfaces Look down and behind and use care when in reverse Ifthe machine should start to vibrate abnormally stop the engine disconnect the spark plug and ground it against the engine Inspect thoroughly for damage Repair any damage before starting and operating Disengage all clutch levers and stop engine before you leave the operating position behind the handles Wait until the auger impeller comes to a complete stop before unclogging the discharge chute making any adjustments or inspections Never put your hand in the discharge or collector openings Always use a clearing tool to unclog the discharge opening Use only attachments and accessories approved by the manufacturer e g wheel weights tire chains cabs etc If situations occur which are not covered in this manual use care and good judgment Contact your dealer or telephone 1 800 800 7310 for assistance and the name of your nearest servicing dealer ISCHARG AMD M CHUTE CONTACT WITH a ii sa C4 2 ul a w EL EE i gt A o E 5 I 2 EE z z 3 g 5 5 E g a 5 ae F a ad NEVER PUT Maintenance and Storage 1 2 10 11 N
27. inutes before storing Operation 1 Do not put hands or feet near rotating parts in the auger impeller housing or discharge chute Contact with the rotating parts can amputate hands and feet The auger impeller clutch lever is a safety device Never bypass its operation Doing so makes the machine unsafe and may cause personal injury The clutch levers must operate easily in both directions and automatically return to the disengaged position when released 10 11 12 13 14 15 16 17 18 19 20 Never operate with a missing or damaged discharge chute Keep all safety devices in place and working Never run an engine indoors or in a poorly ventilated area Engine exhaust contains carbon monoxide an odorless and deadly gas Do not operate machine while under the influence of alcohol or drugs Muffler and engine become hot and can cause a burn Do not touch Exercise extreme caution when operating on or crossing gravel surfaces Stay alert for hidden hazards or traffic Exercise caution when changing direction and while operating on slopes Plan your snow throwing pattern to avoid discharge towards windows walls cars etc To avoid property damage or personal injury caused by a ricochet Never direct discharge at children bystanders and pets or allow anyone in front of the machine Do not overload machine capacity by attempting to clear snow at too fast of a rate Never operate this mach
28. lug before starting Gas And Oil Fill up WARNING Use extreme care when handling gasoline Gasoline is extremely flammable and the vapors are explosive Never fuel machine indoor or while the engine is hot or running Extinguish cigarettes cigars pipes and other sources of ignition e Aplastic cup was provided inside the fuel fill opening on the fuel tank Remove and discard this cup before filling up the tank Use the separate fuel tank cap to close after fill up Starting Engine e Attach spark plug wire to spark plug Make certain the metal loop on end of the spark plug wire inside the boot is fastened securely over the metal tip on the spark plug See Figure 8 Metal Loop Rubber Boot Figure 8 e Make sure the fuel shut off valve if so equipped is in the OPEN vertical position e Make certain the auger and traction controls are in the disengaged released position e Move throttle control up to FAST position Insert ignition key into slot Be certain it snaps into place Do not turn key See Figure 7 NOTE Engine will not start unless ignition key is inserted into ignition slot in carburetor cover Do not turn ignition key Recoil Starter e Rotate choke knob to FULL choke position cold engine start e If engine is warm place choke in OFF position instead of FULL e Push primer button three or four times for cold engine start e f engine is warm push primer button once only NOTE A
29. lways cover vent hole in primer button when pushing Additional priming may be necessary for first start if temperature is below 15 degrees Fahrenheit e Grasp starter handle and pull rope out slowly until it pulls slightly harder Let rope rewind slowly e Pull starter handle rapidly Do not allow handle to snap back Allow it to rewind slowly while keeping a firm hold on the starter handle e Repeat step above until engine starts e As engine warms up and begins to operate evenly rotate choke knob slowly to OFF position If engine falters return to FULL choke then slowly move to OFF position Electric Starter The electric starter is equipped with a grounded three wire power cord and plug and is designed to operate on 120 volt AC household current WARNING The electric starter must be A used with a properly grounded three prong receptacle at all times to avoid possibility of electric shock Follow all instructions carefully to operate the electric starter e Determine that your house wiring is a three wire grounded system Ask a licensed electrician if you are not certain e If your home wiring system is not a three wire grounded system do not use this electric starter under any conditions e If your home electrical system is grounded but a three hole receptacle is not available one should be installed by a licensed electrician before using the electric starter e If you have a grounded three prong receptacle proce
30. open flame spark or pilot light such as a water heater furnace clothes dryer etc Always refer to the operator s manual for proper instructions on off season storage 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 The safety labels are given below for your reference AVMV ONIHLOTO ANY 41334 SGNWH d34y YADNV ONILVLOYW NOYI AUNFNI GIOAV 1 KEEP AWAY FROM ROTATING IMPELLER AND AUGER CONTACT WITH IMPELLER OR AUGER CAN AMPUTATE HANDS AND FEET 2 DISENGAGE CLUTCH LEVERS STOP ENGINE AND REMAIN BEHIND HANDLES UNTIL ALL MOVING PARTS HAVE STOPPED BEFORE UNCLOGGING OR SERVICING MACHINE 3 T0 AVOID THROWN OBJECTS INJURIES NEVER DIRECT DISCHARGE AT BYSTANDERS USE EXTRA CAUTION WHEN OPERATING ON GRAVEL SURFACES ERDAL Aid 4 READ OPERATOR S MANUAL J SECTION 2 ASSEMBLING YOUR SNOW THROWER Unpacking e Remove staples or break glue on the top flaps of the carton Remove any loose parts included with unit i e Operator s Manual etc e Cut along corners and lay end of carton down flat Remove packing material e Roll unit out of carton Check carton thoroughly for loose parts before discarding Before Assembly WARNING Disconnect spark plug wire A and ground it against the engine to prevent unintended starting NOTE All references to right or left side of the snow thrower are de
31. ou can turn the chute directional control without interrupting the snow throwing process If the auger control is engaged with the traction control engaged the operator can release the auger control on the left handle and the augers will remain engaged Release the traction control to stop both the augers and wheel drive auger control must also be released Chute Directional Control The chute directional control is located on left hand side of the snow thrower To change the direction in which snow is thrown turn chute directional control as follows e Crank clockwise to discharge to the left e Crank counterclockwise to discharge to the right Throttle Control The throttle control is located on the engine It regulates the speed of the engine See Figure 7 Ignition Key The ignition key must be inserted in the switch before the unit will start Remove the ignition key when snow thrower is not in use Fuel Shut off Valve If equipped The fuel shut off valve located under fuel tank controls fuel flow from tank See Figure 7 Spark Plug Primer Recoil Starter Handle Ignition Key Contor Open gt Fuel Shut Off Valve Figure 7 SECTION 4 OPERATING YOUR SNOW THROWER Before Starting T WARNING Read understand and follow all instructions and warnings on the machine and in this manual before operating e The spark plug wire was disconnected for safety Attach spark plug wire to spark p
32. rge 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 subject 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 cont
33. ructions in the engine manual Remove all dirt from exterior of engine and equipment Follow lubrication recommendations on page 11 NOTE When storing any type of power equipment in an poorly ventilated or metal storage shed care should be taken to rustproof the equipment especially springs cables and all moving parts SECTION 9 TROUBLE SHOOTING GUIDE Trouble Possible Cause s Corrective Action Engine fails to start Fuel tank empty or stale fuel Blocked fuel line Choke not in ON position Faulty spark plug Key not in switch on engine Spark plug wire disconnected Primer button not depressed Fuel shut off valve closed if so equipped Fill tank with clean fresh gasoline Fuel may not last over thirty days unless a fuel stabilizer is used Clean fuel line Move switch to ON position Clean adjust gap or replace Insert key Connect spark plug wire Refer to the engine manual packed with your unit Open fuel shut off valve Engine runs erratic Unit running on CHOKE Blocked fuel line or stale fuel Water or dirt in fuel system Carburetor out of adjustment Move choke lever to OFF position Clean fuel line fill tank with clean fresh gasoline Fuel may not last over thirty days unless a fuel stabilizer is used Drain fuel tank Refill with fresh fuel Refer to the engine manual packed with your unit or have carburetor adjusted by an authorized service dealer Loss of
34. termined from behind the unit in the operating position Assembly Tips For convenience in assembly remove the chute from the carton and lay it on top of the engine Do not unwrap the chute till you have installed the handle panel and the clutch cables Attaching the Handle WARNING Disconnect the spark plug A wire and ground it against the engine to prevent unintended starting e Remove the two plastic wing nuts two cupped washers a carriage bolt on the right side and an eyebolt on the left side from the lower handle See Figure 1 e Raise upper handle assembly in the direction shown in Figure 1 and align with lower handle P Raise handle Remove carriage A this way bolt 8 washer Remove Handle eye bolt Lower Handle Figure 1 NOTE Make sure cables are set in the cable roller guides in the lower rear of the snow thrower e Secure the upper handle to the lower handle with the hardware removed earlier e Adjust eyebolt on the chute directional control so the control rod does not contact the engine Move the hex nut against the handle in order to adjust Retighten the wing nut to secure the chute directional control in this position See Figure 2 Shift Rod Connector Lower Shift Rod Eyebolt Figure 2 Assembling the Shift Rod e Slide the shift rod connector down over
35. the end of the lower shift rod Tap the connector until it locks on the lower shift rod NOTE f the connector is not properly assembled the shift rod will pivot and you will not be able to shift gears or change directions Connecting Headlight Unwrap the headlight wire which is attached to the headlight beneath the handle panel Wind it around the right handle several times to remove excess slack in the wire See Figure 3 e Plug the wire from the headlight into the wire lead coming from the right side of the engine underneath the fuel tank Lamp Wire Alternator Lead z Right Handle Figure 3 Final Adjustments Skid Shoes The space between the shave plate and the ground can be adjusted For close snow removal place skid shoes in the low position Use middle or high position when area to be cleared is uneven A Carriage Bolts Adjust skid shoes by loosening the four hex nuts and carriage bolts and moving skid shoes to desired position See Figure 4 Make certain the entire bottom surface of skid shoe is against the ground to avoid uneven wear on the skid shoes Retighten nuts and bolts securely Hex Nuts Figure 4 WARNING Do not operate this snow thrower on gravel as loose gravel can be easily picked up and thrown by the auger causing injury to the operator and or damage to the snow thrower Tire Pressure Pneumatic Tires The tires are over inflated for
36. umber in order to process your call For more details about your unit visit our website at www mtdproducts com SECTION 1 IMPORTANT SAFE OPERATION PRACTICES A A A Training 1 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 Engine Exhaust some of its constituents and certain vehicle components contain or emit chemicals known to State of California to cause cancer and 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 Read understand and follow all instructions on the machine and in the manual s before attempting to assemble and operate Keep this manual in a safe place for future and regular reference and for ordering replacement parts Be familiar with all controls and their proper operation Know how to stop the mac
37. upport Bracket Rear Auger Belt Front Auger Pulley Pulley Idler Auger Bracket Spring Housing Spring Figure 16 Drive Belt e Follow steps 1 through 4 of previous instructions e Pull idler pulley up and lift belt off engine pulley and friction wheel disc See Figure 15 e Back out the stop bolt until the support bracket rests on the auger pulley See Figure 17 e Slip belt between friction wheel and friction wheel disc Remove and replace belt Reassemble following the instructions in reverse order NOTE The support bracket must rest on the stop bolt after the new belt has been assembled See Figure 25 Friction Wheel gt gt Drive Belt Friction Ww Stop Bolt _ Support Bracket e EA Figure 17 Changing Friction Wheel Rubber The rubber on the friction wheel is subject to wear and should be checked after 25 hours of operation and periodically thereafter Replace the friction wheel rubber if any signs of wear or cracking are found e Drain the gasoline from the snow thrower or place a piece of plastic under the gas cap e Tip the snow thrower up and forward so that it rests on the housing See Figure 18 4 28 BI o Hex Nut and Chute 3 A Bell Washer A Note The unit is shown standing on p auger housing 5 Z Auger m Figure 18 e Remove six self tapping
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