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 18

SECTION 12:  TROUBLE SHOOTING GUIDE

For repairs beyond the minor adjustments above, contact your local authorized service dealer.

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).
Improper gasoline and oil 
mixture.

Fill tank with clean, fresh mixture of gasoline and oil. Fuel will 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.

Refer to the engine manual packed with your unit.

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 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 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 Belt Tension Adjustment in 
Adjustment section of this manual.
Replace drive belt. Refer to Belt Replacement in Maintenance 
section of this manual.

Unit fails to
discharge snow

Discharge chute clogged.

Foreign object lodged in 
auger.
Incorrect adjustment of drive 
cable.
Drive belt loose or damaged.

Stop engine immediately and disconnect spark plug wire. Clean 
discharge chute and inside of auger housing.
Stop engine immediately and disconnect spark plug wire. 
Remove object from auger.
Adjust drive cable. Refer to Belt Tension Adjustment in 
Adjustment section of this manual.
Replace drive belt. Refer to Belt Replacement in Maintenance 
section of this manual.

Summary of Contents for E740

Page 1: ...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 eng...

Page 2: ...rating in reverse 2 PREPARATION Thoroughly inspect the area where the equipment is to be used and remove all door mats sleds boards wires and other foreign objects Disengage all clutches and shift into neutral before starting engine Do not operate equipment without wearing adequate winter outer garments Do not wear jewelry long scarfs or other loose clothing which could become entangled in moving ...

Page 3: ...collector impeller when transporting or not in use Use only attachments and accessories approved by the manufacturer of snow thrower such as wheel weights counter weights cabs etc Never operate the snow thrower without good visibility or light Always be sure of your footing and keep a firm hold on the handles Walk never run Muffler and engine become hot and can cause a burn Do not touch 4 MAINTENA...

Page 4: ...t the dash panel The model plate will look like Figure 1 Figure 1 SECTION 3 CALLING CUSTOMER SUPPORT If you are having difficulty assembling this product or if you have any question regarding the controls operation or maintenance of this snow thrower please call the Customer Support Department You can reach them by calling 1 800 800 7310 Before you call make sure that you have both your model and ...

Page 5: ...7 A ATTACHING THE HANDLE ASSEMBLY B ATTACHING THE CHUTE ASSEMBLY C ATTACHING THE CHUTE CRANK Flat Washers 3 8 I D x 5 8 O D 736 0185 Hairpin Clip 714 0104 Hex Bolt 5 16 18 x 1 1 2 Long 710 0442 Lock Washer 5 16 I D 736 0119 Hex Nut 5 16 18 Thread 712 3010 Ferrule 711 0677 Hairpin Clips 714 0104 Flat Washers 5 16 I D x 5 8 O D 736 0264 D ATTACHING THE SHIFT ROD AND CLUTCH CABLES Hex Lock Nuts 5 16 ...

Page 6: ...at this time 4 Place handle tab over the upper hole in handle so the curve in the handle tab matches the curve in the handle Secure to the snow thrower using 1 3 4 hex bolt and lock washer Do not tighten at this time 5 Attach the left handle in the same manner Do not tighten at this time 6 Place the handle panel in position between the handles To hold the handle panel in place engage both clutch g...

Page 7: ...attaching the other end of the chute crank 3 Loosen the carriage bolts and hex lock nuts which secure the lower chute crank bracket to the extension on the left side of the chute assembly See figure 7 4 Place one flat washer on the end of the chute crank then insert the end of the crank into the hole in the plastic bushing in the lower chute crank bracket See figure 8 Place the other flat washer o...

Page 8: ...THE CLUTCH CABLES The Z end of the clutch cables are hooked into the clutch grips on each handle Attach cables as follows 1 Thread the hex jam nuts all the way up the threaded portion of the Z ends of the clutch cables 2 Make certain each cable is in groove of cable roller guides Place the clutch grip in the raised up position 3 Thread the cable onto the threaded portion of the Z and until there i...

Page 9: ...Release the trac tion drive clutch and make sure the tracks again turn Move the shift lever back to the fast reverse position then all the way forward again There should be no resistance in movement of shift lever If you have resistance when moving the shift lever or you are unable to turn the tracks by pushing the snow thrower loosen the lock nut on the traction drive cable and unthread the cable...

Page 10: ... drive auger drive clutch must also be released CHUTE CRANK See figure 14 The chute crank is located on left hand side of the snow thrower To change the direction in which snow is thrown turn chute crank as follows 1 Crank clockwise to discharge to the left 2 Crank counterclockwise to discharge to the right LEFT AND RIGHT TRACK CONTROLS The left and right track controls are located on the undersid...

Page 11: ...Assembly Instructions Figure 16 1 Attach spark plug wire to spark plug 2 Make certain the fuel shut off valve is in the open vertical position 3 Make certain the auger drive and traction drive clutch grips are in the disengaged released position 4 Move throttle control up to FAST position Insert ignition key into slot See figure 16 Be certain it snaps into place Do not turn key 5 Rotate choke knob...

Page 12: ...tions 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 2 Squeeze the traction drive clutch grip against the right handle and the snow thrower will move Release it and the drive motion will stop NOTE NEVER move shift lever without first releasing the drive clutch TO ENGAGE AUGER...

Page 13: ...ositions of the shift lever With the traction drive clutch engaged the friction wheel must contact the drive plate See figure 17 If adjustment is necessary loosen the lock nut on the traction drive cable and thread the cable in or out as necessary Tighten the lock nut to secure the cable when correct adjustment is reached Reassemble the frame cover NOTE If you placed plastic under the gas cap be c...

Page 14: ... all grease and oil off of the rubber friction wheel and aluminum drive plate DRIVE AND SHIFTING MECHANISM At least once a season or after every 25 hours of operation remove rear cover Lubricate 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 Refer to fig...

Page 15: ...me to the auger housing to aid in belt removal 8 Lift the rear auger belt from the auger pulley and slip belt between the support bracket and the auger pulley See figure 21 Repeat this step for the front auger belt 9 Replace both auger drive belts by following instructions in reverse order DRIVE BELT 1 Follow steps 1 through 4 of previous instructions 2 Pull idler pulley up and lift belt off engin...

Page 16: ...from the right side of frame then remove hex bolt and bell washer from left end of shaft 7 Sliding the shaft to the right remove the spacer sprocket and friction wheel assembly from the shaft See figure 24 8 Remove the six screws from the friction wheel assembly three from each side Remove the friction wheel rubber from between the friction wheel plate 9 Reassemble new friction wheel rubber to the...

Page 17: ...weather deteriorates and will cause serious starting problems NOTE Fuel stabilizer such as STA BIL is an acceptable alternative in minimizing the formation of fuel gum deposits during storage Add stabilizer to gasoline in fuel tank or storage container Always follow mix ratio found on stabilizer container Run engine at least 10 minutes after adding stabilizer to allow it to reach carburetor Do not...

Page 18: ...wer 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 Dra...

Page 19: ...5699 3 710 0642 Screw 5 13 736 0351 Washer Flat 2 4 711 0909 Spiral Axle 26 1 14 736 0369 Washer Flat 4 5 714 0161 Key 1 15 736 0445 Washer Flat 1 6 715 0143 Pin Spiral 1 16 737 0168 Grease 1 5 oz 7 717 0526 Shaft Worm 1 17 741 0662 Bearing Flange 1 8 717 0528 Gear Worm 1 18 741 0663 Bearing Flange 1 9 718 0186 Collar Thrust 1 618 0121 Ass y Complete 26 10 721 0325 Plug 1 ...

Page 20: ...20 Handle Assembly ...

Page 21: ...82 Bracket Handle Support R H 1 15 714 0507 Pin Cotter 3 46 736 0119 Washer Lock 7 16 715 0138 Pin Roll 1 47 710 0538 Screw 2 17 720 0201A Knob 1 48 710 3180 Screw 2 18 720 0232 Knob Shift 1 49 784 5599 Tab Handle 2 19 720 0274 Grip 2 50 736 0140 Washer Flat 2 20 720 0284 Knob 1 51 714 0507 Pin Cotter 4 21 726 0102 Cap Push 1 52 684 0022 Crank Chute 1 22 731 0921 Chute Upper 1 53 710 0442 Screw 1 ...

Page 22: ...peller Assembly 1 25 736 0242 Washer Bell 16 8 705 5226 Reinforcement Chute 1 26 738 0281 Screw Shoulder 1 9 710 0134 Screw Carriage 5 27 741 0245 Bearing Flange 2 10 710 0451 Screw Carriage 10 28 741 0309 Bearing Ball 1 11 710 0604 Screw Hex 6 29 741 0475 Bushing Plastic 1 12 710 0890 Shear Bolt 2 30 741 0493A Bushing Flange 4 13 712 0116 Nut Hex Lock 1 31 756 0178 Idler Flat 1 14 712 0310 Nut He...

Page 23: ...23 Track and Frame ...

Page 24: ...24 Track and Frame ...

Page 25: ...le Drive Clutch 1 19 710 0602 Screw 8 64 746 0950 Cable with Trigger Lever 2 20 710 0604 Screw 6 65 748 0190 Spacer 1 21 710 0875 Screw 2 66 748 0234 Spacer Shoulder 2 22 710 0654A Screw 4 67 748 0353A Lift Shaft Drive 1 23 710 0788 Screw 2 68 750 0547 Spacer 2 24 710 0896 Screw 10 69 750 0903 Spacer Split 2 25 710 1087 Screw 2 70 750 0904 Spacer Split 1 26 710 0538 Screw 2 71 750 0909 Spacer 2 27...

Page 26: ...1 21 754 0346 V Belt 1 6 710 0342 Screw Hex 1 22 754 0430 V Belt 2 7 710 0696 Screw Hex 1 23 756 0313 Idler Flat 1 9 710 0896 Screw Hex 2 24 756 0569 Pulley Half 4 10 712 0181 Nut Hex 1 25 756 0967 Pulley Auger 2 11 731 1324 Cover Belt 1 26 756 0986 Pulley Half 1 12 732 0710 Spring 1 27 756 0987 Pulley Half 1 13 736 0119 Washer Lock 1 28 390 987 Electric Start Kit 1 14 736 0242 Washer Bell 1 29 85...

Page 27: ...27 George ...

Page 28: ...ce Department of MTD PRODUCTS INC Transportation charges Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser Units exported out of the United States MTD PRODUCTS INC 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 PRO...

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