MTD 644E Operator'S Manual Download Page 31 | Manualshive

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Summary of Contents for 644E

Page 1: ...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...

Page 2: ...he model number and the serial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine related issues with regards to performance power rating specifications warranty and service Please refer to the engine manufacturer s Owner s Operator s Manual packed separately with your unit for more information CALLING CUSTOMER SUPPORT Please do NOT ...

Page 3: ...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 3 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 4 Use a gr...

Page 4: ...ved by the manufacturer e g wheel weights tire chains cabs etc 20 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 MAINTENANCE AND STORAGE 1 Never tamper with safety devices Check their proper operation regularly Refer to the maintenance and adjustment sec...

Page 5: ...ts 710 1880 2 Lock Washers 736 0119 4 Saddle 784 5599 2 B ATTACHING HANDLE PANEL Carriage Bolts 710 0262 4 Hex Patch Nuts Cupped Washers 736 0242 4 C D ATTACHING CLUTCH CABLES AND SHIFT ROD Z Cable Fitting 746 0778 2 Jam Nuts 712 0121 2 E ATTACHING CHUTE ASSEMBLY Hex Bolts 710 3015 2 Hex Lock Nuts 712 3027 6 Chute Flange Keepers 731 0851A 3 Not Shown F ATTACHING CHUTE DIRECTIONAL CONTROL Flat Wash...

Page 6: ...oreign object or ice jam the snow thrower is designed so that the bolts may shear Two replacement shear bolts and nuts are provided for your convenience Store in a safe place until needed See Figure 1 Figure 1 Loose Parts Boxed Unit Listed below are the parts of the snow thrower packed loose with units that come unassembled in a box You will need these parts along with hardware from the hardware p...

Page 7: ... panel See Figure 11 Make certain all cables are in the grooves of the cable roller guides located in the lower rear of the unit one on each side See Figure 9 Thread the coupling end of the cable onto the threaded portion of the Z fitting until the rubber bumper located on the underside of the clutch lever only lightly contacts the upper handle IMPORTANT The cable should have very little slack but...

Page 8: ...wer hole in snow thrower frame Do not tighten at this time See Figure 8 Repeat process on the other side Figure 8 Raise the handle assembly into the upright position and align the top holes in the handle with the top holes in the snow thrower frame Attach using 2 long hex bolts lock washers and saddles Curve in saddle must match the curve in the handle See Figure 9 Tighten all hardware used to att...

Page 9: ... NOT be tight An overtightened cable may prohibit the auger and drive from disengaging WARNING Over tightening the cable may prohibit the auger and drive from disengaging and compromise the safety of the snow thrower Do NOT overtighten the cable Once properly adjusted tighten the jam nut against the coupling end of the cable to lock it in position NOTE Refer to Auger Control Test in the Operation ...

Page 10: ...le in the end of control See Figure 14 Adjust the chute bracket so that the spiral on the chute directional control fully engages the teeth on the chute assembly Tighten nuts on the lower chute bracket securely Tighten hex nut on the eye bolt on chute directional control Figure 14 Lamp Wiring If Equipped NOTE A lamp is an optional feature of some model snow throwers and is NOT standard equipment O...

Page 11: ...his snow thrower Position one 1 is the slowest and position five 5 is the fastest Reverse Your snow thrower has two reverse R speeds R1 is the slower while R2 is the faster of the two NOTE Model 614 644 and 664 has five forward positions and two reverse Auger Drive Control The auger drive control is located on the left handle Squeeze the control grip to engage the augers Release to stop the snow t...

Page 12: ...pletely See Figure 16 SECTION 5 OPERATING YOUR SNOW THROWER Before Starting WARNING Read understand and follow all instructions and warnings on the machine and in this manual before operating Gas Oil Fill Up Service the engine with gasoline and oil as instructed in the separate engine manual packed with your snow thrower Read instructions carefully WARNING Use extreme care when handling gasoline G...

Page 13: ...ter handle 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 To Stop Engine Run engine for a few minutes before stopping to help dry off any moisture on the engine To help prevent possible freeze up of starter proceed as follows Electric Starter If equipped Connect power cord to switch bo...

Page 14: ...Lever and the Traction Auger Control Lock Lever Stop the engine by removing the ignition key Remove the clean out tool from the clip which secures it to the rear of the auger housing Use the shovel shaped end of the clean out tool to dislodge and scoop any snow and ice which has formed in and near the discharge chute WARNING Never use your hands to clean snow and ice from the discharge chute or au...

Page 15: ...t should roll forward Then engage the traction control grip The 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 the wheels should keep turning If you have resistance when moving the shift lever or the wheels stop when th...

Page 16: ... 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 Adjust skid shoes by loosening the four hex nuts and carriage bolts Move skid shoes to desired position 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 Carburetor M...

Page 17: ...ng repair ing or inspecting disengage all clutch levers and stop engine Wait until all mov ing parts have come to a complete stop Disconnect spark plug wire and ground it against the engine to prevent unintended starting Lubrication Engine Refer to the separate engine manual packed with your unit for all engine lubrication instructions WARNING If any adjustments need to be made to the engine while...

Page 18: ... moving parts have come to a complete stop Disconnect spark plug wire and ground it against the engine to prevent unintended starting Engine Refer to the separate engine manual packed with your unit for all engine maintenance procedures 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 wh...

Page 19: ... by removing the two self tapping screws See Figure 27 Drain the gasoline from the snow thrower or place a piece of plastic under the gas cap Tip the snow thrower up and forward so that it rests on the auger housing Figure 27 Remove six self tapping screws from the frame cover underneath the snow thrower Roll the front and rear auger belts off the engine pulley See Figure 28 Figure 28 Unhook the i...

Page 20: ...ve the four screws from the friction wheel assembly See Figure 32 Remove the friction wheel rubber from between the friction wheel plate Reassemble new friction wheel rubber to the friction wheel assembly tightening the four screws in rotation and with equal force See Figure 32 Figure 32 Slide friction wheel assembly back onto the gear shaft Be sure to align the pin on the shift rod with hole in t...

Page 21: ...el line Move switch to ON position Clean adjust gap or replace Insert key Connect spark plug wire Refer to the engine manual 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 will not last over thirty da...

Page 22: ... SECTION 10 MODELS 614E 644E 664G 4 2 1 3 5 6 7 8 10 11 12 13 8 14 15 16 17 7 18 18 7 19 20 21 16 6 22 23 13 13 6 7 24 6 16 26 27 28 25 29 30 31 32 33 34 36 37 33 32 32 33 35 37 36 33 32 31 30 6 38 39 40 ...

Page 23: ... 20 741 0309 Ball Bearing 21 684 0039D 24 Housing Assembly 684 0041D 28 Housing Assembly 22 736 0169 Lock Washer 3 8 23 712 0798 Hex Nut 3 8 16 24 784 5580 Slide Shoe 25 784 5581A 24 Shave Plate 784 5582A 28 Shave Plate 26 684 0065 Impeller Assembly 27 715 0114 Pin 28 618 0120A 24 Gear Assembly 618 0122A 28 Gear Assembly 29 710 0726 Hex Washer Screw 5 16 12 30 784 5618 Bearing Housing 31 741 0245 ...

Page 24: ...9 19 20 20 21 22 53 54 25 26 27 28 29 30 53 23 34 35 23 36 38 54 39 40 41 39 42 43 44 45 46 17 14 13 7 37 10 12 24 6 7 55 55 57 58 59 47 48 49 50 51 52 42 62 64 65 63 23 16 36 61 60 27 22 Models w Folding Handles Ref Nos 22 and 27 reversed for fold down handles 24 ...

Page 25: ...710 0262 Carriage Bolt 5 16 18 x 1 50 29 684 0106 Control Panel Assy 30 749 0911C Handle LH 34 784 5599 Handle Tab 35 710 04039 Hex Cap Screw 5 16 18 x 2 0 36 710 1880 Hex Cap Screw 5 16 18 x 75 37 736 0185 Flat Washer 38 731 04426 Upper Chute 39 736 0159 5 16 Washer 40 710 0451 Carriage Bolt 5 16 18 x 75 41 710 04071 Carriage Screw 5 16 18 x 1 0 42 720 0284 Knob Black 720 04032 Knob Yellow 43 731...

Page 26: ... Wheels 13 or 15 Wheels 4 7 7 8 9 10 10 11 11 12 41 5 13 14 15 16 17 18 1 19 20 21 22 23 24 25 26 28 29 41 41 30 31 32 33 34 8 35 Drive Clutch Cable Auger Clutch Cable Auger Clutch Cable Blower Housing 36 20 37 38 39 40 27 42 42 42 43 44 45 46 47 ...

Page 27: ...her Screw 1 4 20 21 736 0351 Flat Washer 760 ID x 50 OD 22 717 1445 Gear 23 714 0126 Key 24 717 04094 7 Tooth Shaft 25 715 0249 Roll Pin 26 714 0143 Klik Pin 27 684 0042C Friction Wheel Assembly 28 656 0012A Friction Disc Wheel 29 684 0013B Wheel Shift Rod Assembly 30 746 0897 Drive Cable 31 748 0190 Spacer 32 684 0021 Friction Wheel Bracket Assembly 33 732 0264 Extension Spring 34 712 0711 Jam Nu...

Page 28: ...Cap Screw 5 16 24 15 712 0181 Lock Jam Nut 3 8 16 16 756 0569 Pulley Half 17 736 0242 Bell Washer 18 736 0505 Flat Washer 19 736 0507 Washer 20 754 0430B Belt 21 756 0967 Auger Pulley 22 736 0247 Flat Washer 23 736 0331 Bell Washer 24 710 0696 Hex Cap Screw 3 8 24 25 748 0360 Pulley 26 710 0654A Hex Washer Screw 3 8 16 x 1 0 REF NO PART NO DESCRIPTION 2 3 4 5 6 7 4 8 9 10 11 12 13 14 15 16 17 18 1...

Page 29: ...45B Hex Lock Screw 5 16 24 x 875 17 736 0242 Bell Washer 340 ID x 872 OD 18 736 0505 Flat Washer 341 ID x 50 OD 19 756 0967 Auger Pulley 20 756 0569 Pulley Half 21 754 0430B V Belt 22 736 0247 Flat Washer 23 736 0331 Bell Washer 39 ID x 1 13 OD 24 710 0696 Hex Cap Screw 3 8 24 x 875 25 748 0360 Pulley Adapter 26 OEM 390 987 Electric Start 27 629 0071 Extension Cord Three Prong REF NO PART NO DESCR...

Page 30: ...Washer 15 741 0662 Flange Bearing 16 741 0663 Flange Bearing 17 618 0120A Ass y Complete 24 618 0122A Ass y Complete 28 REF NO PART NO DESCRIPTION 2 12 4 6 8 10 9 14 11 7 16 1 3 15 5 13 3 17 Wheel Assembly SIZE REF NO 1 WHEEL ASS Y COMPLETE REF NO 2 TIRE ONLY REF NO 3 AIR VALVE REF NO 4 RIM ONLY REF NO 5 SLEEVE BEARING 2 REF NO 6 SPACER 13 x 4 634 0114A 734 1732 734 0255 734 1713A 741 0401 731 040...

Page 31: ...31 NOTES ...

Page 32: ...aintenance items such as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments 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 its possessions and territories except those sold through MTD s authorized channels of export distribution e Re...

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