MTD E664F, E6A4E, E662H, E644E, E642E User Manual

OPERATOR’S MANUAL

9/98

Model Numbers

E662H, E642E

614E, E644E

E664F, E6A4E

Model Style 4 Shown

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

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 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. 770-10045A

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

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 State of California to cause cancer, birth defects or other reproductive harm.

DANGER: Your snow thrower 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. If you violate any of these rules, you may cause serious injury to yourself or others.

1. TRAINING

• Read this operator's manual carefully in its entirety before attempting to assemble or operate this machine. Be completely familiar with the controls and the proper use of this machine before operating it. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.

• Never allow children under 14 years old to operate a snow thrower. Children 14 years old and over should only operate snow thrower under close parental supervision. Only persons well acquainted with these rules of safe operation should be allowed to use your snow thrower.

• No one should operate this unit while intoxicated or while taking medication that impairs the senses or reactions.

• Keep the area of operation clear of all persons, especially small children and pets.

• Exercise caution to avoid slipping or falling, especially when operating 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 parts. Wear footwear which will improve footing on slippery surfaces.

• Before working with gasoline, extinguish all cigarettes and other sources of ignition. Check the fuel before starting the engine. Gasoline is an extremely flammable fuel. Do not fill the gasoline tank indoors, while the engine is running, or until engine has been allowed to cool at least two minutes. Replace gasoline cap securely and wipe off any spilled gasoline before starting the engine as it may cause a fire or explosion.

• Use a grounded three wire plug-in for all units with electric drive motors or electric starting motors.

• Adjust collector housing height to clear gravel or crushed rock surface.

• Never attempt to make any adjustments while engine is running (except where specifically recommended by manufacturer).

• Let engine and machine adjust to outdoor temperature before starting to clear snow.

• Always wear safety glasses or eye shields during operation or while performing an adjustment or repair, to protect eyes from foreign objects that may be thrown from the machine in any direction.

3. OPERATION

• Do not put hands or feet near or under rotating parts. Keep clear of discharge opening and auger at all times.

• Exercise extreme caution when operating on or crossing gravel drives, walks, or roads. Stay alert for hidden hazards or traffic. Do not carry passengers.

• After striking a foreign object, stop the engine, remove wire from spark plug, and thoroughly inspect the snow thrower for any damage. Repair the damage before restarting and operating the snow thrower.

• If the snow thrower should start to vibrate abnormally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble.

• Stop engine whenever you leave the operating position, before unclogging the collector/impeller housing or discharge guide, and making any repairs, adjustments, or inspections. Never place your hand in the discharge or collector openings. Use a stick or wooden broom handle to unclog the discharge opening.

• Take all possible precautions when leaving the unit unattended. Disengage the collector/impeller, stop the engine, and remove the key.

• When cleaning, repairing, or inspecting, make certain collector/impeller and all moving parts have stopped. Disconnect spark plug wire and keep away from plug to prevent accidental starting.

• Do not run engine indoors, except when starting engine and transporting snow thrower in or out of building. Open doors. Exhaust fumes are dangerous.

• Do not clear snow across the face of slopes. Exercise extreme caution when changing direction on slopes. Do not attempt to clear steep slopes.

• Never operate snow thrower without guards, plates, or other safety protection devices in place.

• Never operate snow thrower near glass enclosure, automobiles, window wells, drop off, etc., without proper adjustments of snow thrower discharge angle. Keep children and pets away.

• Do not overload machine capacity by attempting to clear snow at too fast a rate.

• Never operate the machine at high transport speeds on slippery surfaces. Look behind and use care when backing.

• Never direct discharge at bystanders or allow anyone in front of unit.

• Disengage power to 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. MAINTENANCE AND STORAGE

• Check shear bolts, engine mounting bolts, etc., at frequent intervals for proper tightness to be sure equipment is in safe working condition.

• Never store the machine with fuel in the fuel tank inside a building where ignition sources are present, such as hot water and space heaters, clothes dryers, and the like. Allow engine to cool before storing in any enclosure.

• Always refer to operator's manual instructions for important details if snow thrower is to be stored for an extended period.

• Run machine a few minutes after throwing snow to prevent freeze up of collector/impeller.

• Check clutch controls periodically to verify they engage and disengage properly and readjust if necessary. Refer to operator's manual for adjustment instructions.

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.

Figure 1

DANGER

AVOID INJURY FROM ROTATING AUGER KEEP HANDS, FEET AND CLOTHING AWAY.

WARNING

STOP ENGINE BEFORE REMOVING

1. DEBRIS AND SERVICING UNIT

KEEP CLEAR OF IMPELLER WHILE

2. ENGINE IS RUNNING

NEVER DIRECT DISCHARGE AT BYSTANDERS OR WINDOWS OR ALLOW ANYONE IN FRONT OF UNIT

THOROUGHLY INSPECT THE AREA

4. WHERE THE EQUIPMENT IS TO BE USED AND REMOVE ALL DOOR MATS, SLEDS, BOARDS, WIRES AND OTHER FOREIGN OBJECTS

REFER TO OWNERS MANUAL FOR

5. FULL INSTRUCTIONS

3396MW

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.

•Every snow thrower has a model plate. You can locate it by standing behind the unit in the operating position and looking down at the rear frame below the engine. See Figure 2.

This is where your model numberwill be.

XXX-X-XXX-X-XXXXXXXXXXXXXX

This is where your serial number will be.

Copy the model number here:

MTD PRODUCTS INC

CLEVELAND, OHIO 44136

Copy the serial number here:

Figure 2

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 serial number ready. By having the model and serial number ready, you help the Customer Support Representative give you faster service. To find your units model and serial number, see SECTION 2: FINDING YOUR MODEL NUMBER.

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

Hex Bolts

5/16-18 x 1-3/4" Long

(710-3180)

Hex Bolts

5/16-18 x 3/4" Long

(710-3008)

Saddle

Lock Washers

5/16" I.D.

(736-0119)

Carriage Bolts

5/16-18 x 1-1/2" Long

(710-0262)

Hex Nuts

5/16-18 Thread

(712-3010)

ATTACHING THE CHUTE CRANK

Flat Washers

3/8" I.D. x 5/8" O.D.

(736-0185)

Hairpin Clip

(714-0104)

AUGER SHEAR BOLTS

NOTE: The augers are secured to the spiral shaft with two shear bolts and hex

lock nuts. If you hit a hard foreign object or an 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.

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)

(784-5599)

ATTACHING THE CHUTE ASSEMBLY

1/4-20 x 3/4" Long

Hex Lock Nuts

1/4-20 Thread

(712-3027)

ATTACHING THE SHIFT ROD

AND CLUTCH CABLES

Ferrule

(711-0677)

Flat Washers

5/16" I.D. x 5/8" O.D.

(736-0264)

ATTACHING THE CLUTCH GRIPS

Hex Screw 5/16-18

x 2.0 (710-0116)

Hairpin Clips

(714-0104)

“Z”-Fitting (R)

(746-0778)

Hex Bolts

(710-3015)

Chute Flange

Keepers

(731-0851A)

Jam Nuts

#10-24 Thread

(712-0121)

Shear Bolts

5/16-18 x

1-1/2" Long

(710-0890A)

Hex Lock Nuts 5/16-18 Thread

(712-0429)

Spacer

.325 I.D. x .50 O.D. x .25

(750-1032)

Hex Top L-Nut

5/16-18 (712-0429)

SECTION 5: ASSEMBLY INSTRUCTIONS

IMPORTANT: After assembly, service engine with

gasoline, and check oil level as instructed in the separate engine manual packed with your unit.

NOTE: All references to right or left side of the

snow thrower are determined from behind the unit in the operating position.

UNPACKING

1. Remove staples or break glue on the top flaps of the carton. Remove any loose parts like operator’s manual or hardware pack included with unit.

2. Cut along dotted lines and lay end of carton down flat. Remove packing material.

3. Roll unit out of carton. Check carton thoroughly for loose parts.

4. Extend cables out behind unit and lay them on the floor.

5. Lay out the contents of the hardware pack according to the illustration in section 4 and identify each part.

6. Find the loose parts in the carton and lay these on the floor. See Figure 3. You should locate the

following loose parts in the carton:

1. Handle Panel

2. Right Handle

3. Left Handle

4. Auger Control Grip

5. Traction Drive Control Grip

6. Right Clutch Grip Bracket

7. Left Clutch Grip Bracket

8. Shift Rod (Not Illustrated)

9. Chute Crank Assembly (Not Illustrated)

10. Chute Assembly (Not Illustrated)

11. Hardware Pack (Not Illustrated)

Attaching the Handle Assembly. (Hardware A and E)

Lay loose parts out on flat surface.

1. Handle Panel

2. Right Handle

3. Left Handle

4. Auger Control Grip

1. Attach left handle and grip bracket to handle panel with two carriage bolts, lock washers and hex nuts. (Be sure the bend in the grip bracket is towards the center of the handle panel. (See Figure 4.) Do not tighten at this time.

Outer Edge of Handle

Panel

Left Grip Bracket

5. Traction Drive Grip

6. Right Grip Bracket

7. Left Grip Bracket

Figure 3

Handle Panel

Control

TOOLS REQUIRED

The snow thrower comes partly assembled in the carton. You will have to complete the assembly. Follow assembly instructions in this operator’s manual to make the job safe and easy. You will need the following tools to assemble the snow thrower.

A. Set of Wrenches (3/8", 9/16", 1/2" or

adjustable)

B. Pair of pliers

Carriage

Bolts

Hex Nuts

Left Handle

(curves in)

Lock Washers

Figure 4

2. Locate auger control grip, part #4 in Figure 3. The triangular metal tab on the auger control grip must face the center of the handle panel.

3. Insert curved end of the Z fitting into the top hole in the triangular metal tab on the auger control grip. See Figure 5.

Triangle

Metal Tab

Auger Control

Grip

“Z” Fitting

Figure 5

4. Place the auger control grip on top of the left handle. The triangular metal tab must be between the handle and the grip bracket. See Figure 6.

5. Secure with hex bolt, spacer and lock nut. See Figure 6. (Do not overtighten this bolt as it will prevent the grips from automatically returning to their upright position.)

6. Repeat process for the right side Traction Drive Control Grip.

7. Lay handle assembly behind snow thrower. See Figure 7.

Hex Bolt

Lock Washer

Left Handle

Spacer

Hex Screw

Handle

Panel

Triangle Metal Tab

Auger Control Grip

Clutch Grip Bracket

Figure 6

Hex Lock Nut

“Z” Fitting

Figure 7

8. Insert a hex bolt and lock washer through the lower hole on the bottom of the handle. See Figure 7.

9. Hold the handle assembly up to the bottom of the snow thrower frame and thread the hex bolt into the lower hole in snow thrower frame. Do not tighten at this time. See Figure 8.

Figure 8

10. Repeat process on the other side.

11. Raise the handle assembly into the upright position and align the top holes in the handles with the top holes in the snow thrower frame. Attach using hex bolts, lock washers and saddles. (Curve in saddle must match the curve in the handle.) See Figure 9 and Figure 10.

12. Tighten four carriage bolts and nuts used to attach the handle panel to the right and left handles in step 1.

13. Tighten all hardware used to attach the handle assembly to the snow thrower frame.

Traction

Models 642 and 662

Models 614, 644, 664, and 6A4

Drive

Clutch

Flat

Washer

Shift

Lever

Ferrule

Figure 9

Lock

Washers

Cable Roller Guide

Handle

Tab

Hex Bolt

3/4” Long

Hex

Bolt 1-3/4”

Long

Figure 10

ATTACHING SHIFT ROD (Hardware D)

1. Place the shift lever in the fastest forward speed position.

2. Models 642, 662: Rotate the shift arm assembly counter clockwise, as far as it will go. Insert the shift rod through the shift arm assembly. When installed the shift arm assembly should point to the right. Secure with flat washer and hairpin clip. See Figure 11. Models 614, 644, 664 and 6A4: Rotate the shift arm assembly counter clockwise as far as it will go. Insert the shift rod through the shift arm assembly. When installed, the shift arm assembly should point left. Secure with flat washer and hairpin clip. See Figure 12.

Hairpin

Clip

Flat

Washer

Hairpin

Clip

Shift

Rod

Shift

Arm

Assembly

Figure 11

Flat

Washer

Hairpin

Clip

Flat

Washer

Hairpin

Clip

Shift

Lever

Shift

Ferrule

Rod

Shift

Arm

Assembly

Figure 12

3. Models 642, 662: Thread the ferrule up or down the shift rod and align with the lower hole on the wider side of the shift lever assembly behind the handle panel. See Figure 11. Models 614, 644, 664, and 6A4: Thread the ferrule onto the shift rod, up or down the shift rod and align with the far hole on the narrow side of the shift lever assembly behind the handle panel. See Figure 12.

4. Secure the ferrule to the shift arm assembly with flat washer and hairpin clip.

NOTE: Make certain to check for correct

adjustment of the shift rod as instructed in the FINAL ADJUSTMENTS section before operating the snow thrower.

ATTACHING CLUTCH CABLES (Hardware D)

1. Thread the hex jam nuts all the way up the threaded portion of the “Z” ends.

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 Figure 13.

WARNING: If cable is tightened so

there is tension on the cable with the clutch grip released, the safety features of the snow thrower may be overridden.

“Z” End

Hex Jam

Nut

Chute

Assembly

Hex Bolt

Hex Lock Nut

Chute Flange

Keeper

Figure 14

ATTACHING THE CHUTE CRANK (Hardware C)

1. Insert hex bolt through the upper chute crank bracket (located on the chute crank). See Figure 15.

Lock Washer

Hex Nut

Hex Bolt

Cable is Straight

Figure 13

4. When correct adjustment is reached, tighten the hex nut against the cable to lock it in position.

ATTACHING THE CHUTE ASSEMBLY (Hardware B)

1. Place chute assembly over chute opening, with the opening in the chute assembly facing the front of the unit.

2. Place chute flange keepers beneath lip of chute assembly, flat side down.

3. Insert hex bolt up through chute flange keeper and chute assembly as shown in Figure 14. Secure with hex lock nut.

4. After assembling all three chute flange keepers, tighten all nuts and bolts securely, then back off 1/4 turn to allow easier movement.

Upper Chute

Crank Bracket

Figure 15

2. Place the hex bolt into the hole provided in the left handle. Secure with lock washer and hex nut. Do not tighten at this point.

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 16.

Carriage Bolts Hex Lock Nuts

Lower Chute Crank

Bracket

Figure 16

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 chute crank bracket. See Figure 17.

Flat Washer

Hairpin Clip

Chute Crank

Bracket

Figure 17

5. Place the other flat washer on the end of the chute crank, and insert hairpin clip into hole in the end of crank. See Figure 17.

6. Adjust the chute bracket so that the spiral on the chute crank fully engages the teeth on the chute assembly.

7. Tighten the nuts on the lower chute crank bracket securely. Tighten the hex bolt and nut on the upper chute crank bracket on the handle.

Chute Crank

LAMP WIRING (If Equipped)

Lamp Wire

Right Handle

Figure 18

1. Wrap the wire from the lamp down the right handle until the wire can be plugged into the alternator lead wire under the fuel tank. See Figure 18. Be sure lamp wire does not interfere with the movement of any controls or cables.

Alternator Lead

IMPORTANT: After attaching the shift rod and

clutch cables, check the adjustments as instructed, and make any final adjustments necessary before operating your snow thrower. Failure to follow the instructions may cause damage to the snow thrower.

FINAL ADJUSTMENTS Auger Drive Clutch

1. To check the adjustment of the auger drive clutch, push forward on the left hand clutch grip 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 depress the auger drive clutch grip against the left handle completely.

3. If necessary, loosen the hex jam nut and thread the cable in (for less slack) or out (for more slack) as necessary. Refer to Figure 13. Recheck the adjustment. Tighten the jam nut against the cable when correct adjustment is reached.

Traction Drive Clutch and Shift Lever Adjustment

To check the adjustment of the traction drive clutch and shift lever:

1. Move the shift lever all the way to the highest speed. With the traction drive lever released, push the snow thrower forward. The unit should roll forward.

2. Then engage the traction drive clutch grip. The wheels should stop turning.

3. Now release the traction drive clutch 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.

4. If you have resistance when moving the shift lever or the wheels stop when they should not, loosen the jam nut on the traction drive cable and unthread the cable one turn. If the wheels do not stop when you engage the traction drive clutch grip, loosen the jam nut on the traction drive cable and thread the cable in one turn. Recheck the adjustment and repeat as necessary.

5. Tighten the jam nut to secure the cable when correct adjustment is reached.

NOTE: If you are uncertain that you have reached

the correct adjustment, refer to SECTION 8: ADJUSTMENTS.

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