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OPERATOR’S MANUAL
Model Numbers
E662H, E642E
614E, E644E
E664F, E6A4E
Model Style 4 Shown
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
Warning:
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
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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES 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 YOUR SNOW THROWER. 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 St
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• If the snow thrower should start to vibrate • Never operate the machine at high transport abnormally, stop the engine and check immediately speeds on slippery surfaces. Look behind and use for the cause. Vibration is generally a warning of care when backing. trouble. • Never direct discharge at bystanders or allow • Stop engine whenever you leave the operating anyone in front of unit. position, before unclogging the collector/impeller • Disengage power to collector/impeller when housing or dis
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SECTION 2: FINDING YOUR MODEL NUMBER This Operator’s Manual is an important part of your new snow thrower. It will help you assemble, prepare and maintain your snow thrower. Please read and understand what it says. Before you start to prepare your snow thrower for its first use, please locate the model plate and copy the information from it in this Operator’s Manual. The information on the model plate is very important if you need help from your dealer or the MTD customer support department.
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SECTION 4: CONTENTS OF HARDWARE PACK Lay out the hardware according to the illustration for identification purposes. Parts are illustrated approximately one-half size. Part numbers are shown in parentheses. (Hardware pack may contain extra items which are not used on your unit.) ATTACHING THE HANDLE ASSEMBLY ATTACHING THE CHUTE ASSEMBLY A B Hex Bolts Hex Bolts 1/4-20 x 3/4" Long 5/16-18 x 1-3/4" Long (710-3015) (710-3180) Hex Bolts Hex Lock Nuts 5/16-18 x 3/4" Long 1/4-20 Thread (710-3008) (712
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SECTION 5: ASSEMBLY INSTRUCTIONS IMPORTANT: After assembly, service engine with Attaching the Handle Assembly. gasoline, and check oil level as instructed in the (Hardware A and E) separate engine manual packed with your unit. Lay loose parts out on flat surface. NOTE: All references to right or left side of the 1. Handle Panel 5. Traction Drive Control snow thrower are determined from behind the unit in Grip 2. Right Handle the operating position. 6. Right Grip Bracket 3. Left Handle 7. Left
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3. Insert curved end of the Z fitting into the top hole 5. Secure with hex bolt, spacer and lock nut. See in the triangular metal tab on the auger control Figure 6. (Do not overtighten this bolt as it will grip. See Figure 5. prevent the grips from automatically returning to their upright position.) 6. Repeat process for the right side Traction Drive Control Grip. Triangle Metal Tab 7. Lay handle assembly behind snow thrower. See Figure 7. Auger Control Grip “Z” Fitting Hex Bolt Figure 5 4. Pl
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Traction Shift Drive Lever Clutch Ferrule Flat Washer Hairpin Shift Clip Rod Flat Washer Hairpin Shift Clip Arm Assembly Figure 9 Models 642 and 662 Figure 11 Flat Washer Lock Washers Shift Hairpin Lever Cable Clip Roller Hex Bolt Handle Guide 3/4” Long Tab Ferrule Hex Shift Bolt 1-3/4” Rod Long Flat Washer Figure 10 Hairpin Shift Clip Arm ATTACHING SHIFT ROD Assembly (Hardware D) Models 614, 644, 664, and 6A4 1. Place the shift lever in the fastest forward speed Figure 12 position.
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ATTACHING CLUTCH CABLES (Hardware D) Chute Assembly 1. Thread the hex jam nuts all the way up the threaded portion of the “Z” ends. Hex Bolt 2. Make certain all cables are in the grooves of the cable roller guides. The roller guides are located in the lower rear of the unit. Lift the clutch grip in the raised (up) position. 3. Thread the cable onto the threaded portion of the “Z” end until there is no slack in the cable, but the cable is NOT tight. Do not overtighten cable. See Hex Lock Nut F
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4. Place one flat washer on the end of the chute FINAL ADJUSTMENTS crank, then insert the end of the crank into the hole in the plastic bushing in the chute crank Auger Drive Clutch bracket. See Figure 17. 1. To check the adjustment of the auger drive clutch, push forward on the left hand clutch grip Flat Washer Chute Crank depressing the rubber bumper under the clutch grip. There should be slack in the cable. 2. Release the clutch grip. The cable should be straight. Make certain you can depres
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Adjusting The Skid Shoes The space between the shave plate and the ground can be adjusted by adjusting the skid shoes. 1. Place skid shoes in the low position to remove snow close to the ground. Place skid shoes in a higher position to remove snow from uneven ground. See Figure 19. Low Position 2. Adjust skid shoes by loosening the four hex nuts High Position and carriage bolts and moving skid shoes to Hex Nuts Skid Carriage Bolts desired position. Make certain the entire bottom Shoe surface of
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Auger Auger Traction Drive Drive Drive Traction Clutch Clutch Clutch Drive Clutch Shift Shift Chute Lever Lever Chute Crank Crank Models 642 and 662 Models 614, 644, 664, and 6A4 Figure 22 Figure 23 SECTION 7: OPERATION BEFORE STARTING WARNING: Observe all Warning Labels Metal Loop on the snow thrower prior to use. See on Spark Figure 1. Plug Wire Rubber Boot Your snow thrower is shipped with oil; however, you must check the oil level before operating. Be Figure 24 careful not to overfil
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Follow all instructions carefully. Determine that your 4. Push primer button two or three times. Refer to Figure 21. If engine is warm, push primer button house wiring is a three wire grounded system. Ask a once only. licensed electrician if you are not certain. If your house wiring system is not a three-wire grounded NOTE: Always cover vent hole in primer button system, do not use this electric starter under any when pushing. Additional priming may be necessary conditions. If your system is gro
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TO ENGAGE DRIVE/AUGER WARNING: Temperature of muffler and 1. With the engine running near top speed, move o surrounding areas may exceed 150 F. shift lever into one of the FORWARD or Avoid these areas. REVERSE positions. Select a speed appropriate for the snow conditions that exist. Use the • For most efficient snow removal, remove slower speeds until you are familiar with the snow immediately after it falls. operation of the snow thrower. •Discharge snow downwind whenever 2. Squeeze the left ha
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5. If adjustment is necessary, loosen the jam nut Models 614, 644, 664, and 6A4: on the traction drive cable, and thread cable in 3. Push down on the shift arm assembly as far as it or out as necessary. will go. Thread the ferrule up or down the shift 6. Tighten the jam nut to secure the cable when rod and align it with the hole closest to the shift correct adjustment is reached. Reassemble the knob on the narrow side of the shift lever frame cover with six self-tapping screws. assembly behind
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SECTION 9: LUBRICATION WARNING: Disconnect the spark plug GEAR CASE wire and ground against the engine The gear case is lubricated with grease at the before performing any lubrication or factory and does not require checking. If maintenance. disassembled for any reason, lubricate with 2 ENGINE ounces of shell grease, part number 737-0168. Refer to engine manual for all engine lubrication IMPORTANT: Do not overfill the gear case. instructions. Damage to the seals could result. Be sure the vent W
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5. Roll the front and rear auger belts off the engine AUGER BELTS pulley. See Figure 30. NOTE: It is necessary to remove both belts in 6. Unhook the idler spring from the hex bolt on the order to change either one. If changing just one belt, auger housing. See Figure 31. be certain to check the condition of the other belt. 7. Back out the stop bolt to allow the belts to slip 1. Remove the plastic belt cover on the front of the between the bolt and auger pulley. engine by removing the two self-t
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6. Lightly tap the hex nut to dislodge the ball bearing Friction from the right side of frame. Remove the hex nut Wheel and bell washer from left end of shaft. Friction Wheel Disc 7. Slide the gear shaft to the right and slide the friction wheel assembly from the shaft. Drive Belt 8. Remove the six screws from the friction wheel assembly (three from each side). Remove the friction wheel rubber from between the friction Support Bracket wheel plates. 9. Reassemble new friction wheel rubber to th
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SECTION 12: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Corrective Action Engine fails to start Fuel tank empty, or stale fuel. Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Blocked fuel line. Clean fuel line. Choke not in ON position Move switch to ON position Faulty spark plug. Clean, adjust gap or replace. Key not in switch on engine. Insert key. Spark plug wire Connect spark plug wire. disconnected. Primer button not depres
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Gear Assembly All Models 9 1 5 8 12 13 6 10 17 16 15 14 3 4 7 11 2 REF. PART REF. PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION 1 618-0123 Housing—L.H. 9 721-0325 Plug 618-0124 Housing—R.H. 10 721-0327 Seal-Oil 2 710-0642 Hex Screw 1/4-20 x .75 11 736-0351 Washer-Flat 3 711-0908 Spiral Axle 24" 12 736-0369 Washer-Flat 711-0909 Spiral Axle 26" 13 736-0445 Washer-Flat 711-0910 Spiral Axle 28" 14 737-0168 Grease 4 714-0161 Key 15 741-0662 Bearing-Flange 5 715-0143 Pin-Spiral 16 741-0663 Bearing-Flan
