MTD 644E, 664G User Manual

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Page 1

Operator’s Manual

Snow Thrower

Models

614E, 644E, 664G

Model 664 Shown

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 361131 Cleveland, Ohio 44136-0019.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

PRINTED IN U.S.A.

FORM NO.

770-10045H.fm (6/2003)

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TABLE OF CONTENTS

Content Page

Important Safe Operation Practices...................................................................3

Hardware Pack...................................................................................................5

Assembling Your Snow Thrower........................................................................6

Know Your Snow Thrower..................................................................................11

Operating Your Snow Thrower...........................................................................12

Making Adjustments...........................................................................................15

Maintaining Your Snow Thrower ........................................................................17

Service...............................................................................................................18

Troubleshooting .................................................................................................21

Parts List............................................................................................................22

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 perform ance. 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 prov ided below. The information on the model plate is very important if you need help from our Cust omer Support Department or an authorized dealer.

• You can locate the model number b y standing behind th e unit in the operating position and looking down at the rear frame below the engine. A sample model plate is explained below. For futu re reference, please copy the model number and the seri al number of the e quipment in the space below.

Copy the model number here:

www.mtdproducts.com

MTD LLC P. O. BOX CLEVELAND,OH 330-220-4683 800-800-7310

361131

44136

Copy the serial number here:

ENGINE INFORMATION

The engine manufacturer is responsible for all engine-re lated issues with regards to performance, power- rating, specifications, warranty and service. Please refer to the engine manufacturer’s Own er’s/Operator’s Manua l packed separately with your unit for more information.

CALLING CUSTOMER SUPPORT

Please do NOT return the unit to the retailer from which it was purchased, without first contacting Customer Support.

Should you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Depart ment.

Call 1- (330) 2 20-4MTD (4683) or 1- ( 800)-800-7310 to reach a Customer Support representative. Please have your u nit’s model number and serial number re ady when you call. See previous section to locate this information. You will be asked to enter the serial number in order to process your call.

For more details about your unit, visit our website at www.mtdproducts.com

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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

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 the State of California to cause cancer, 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.

TRAINING

1. 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.

2. Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly.

3. 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.

4. Never allow adults to operate this machine without proper instruction.

5. Thrown objects can cause serious personal injury. Plan your snow-throwing pattern to avoid discharge of material toward roads, bystanders and the like.

6. 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.

7. 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 doormats, newspapers, sleds, boards, wires and other foreign objects, which could be tripped over or thrown by the auger/impeller.

2. Always wear safety glasses or eye shields during operation and while performing an adjustment or repair to protect your eyes. Throw n 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 grounded three-wire extension cord and receptacle for all units with electric start engines.

5. Adjust collector housing height to clear gravel or crushed rock surfaces.

6. 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 operator’s manual.

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

9. 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

½ 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. Wait 5

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 minutes 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.

2. The auger/impeller clutch lever is a safety device. Never bypass its operation. Doing so makes the machine unsafe and may cause personal injury.

3. The clutch levers must operate easily in both directions and automatically return to the disengaged position when released.

4. Never operate with a missing or damaged discharge chute. Keep all safety devices in place and working.

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5. Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

6. Do not operate machine while under the influence of alcohol or drugs.

7. Muffler and engine become hot and can cause a burn. Do not touch.

8. Exercise extreme caution when operating on or crossing gravel surfaces. Stay alert for hidden hazards or traffic.

9. Exercise caution when changing direction and while operating on slopes.

10. Plan your snow-throwing pattern to avoid discharge towards windows, walls, cars etc. Thus, avoiding possible property damage or personal injury caused by a ricochet.

11. Never direct discharge at children, bystanders and pets or allow anyone in front of the machine.

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

13. Never operate this machine without good visibility or light. Always be sure of your footing and keep a firm hold on the handles. Walk, never run.

14. Disengage power to the auger/impeller when transporting or not in use.

15. Never operate machine at high transport speeds on slippery surfaces. Look down and behind and use care when in reverse.

16. If the machine should start to vibrate abnormally, stop the engine, disconnect the spark plug wire and ground it against the engine. Inspect thoroughly for damage. Repair any damage before starting and operating.

17. 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.

18. Never put your hand in the discharge or collector openings. Always use the clean-out tool provided to unclog the discharge opening. Do not unclog discharge chute while engine is running.Shut off engine and remain behind handles until all moving parts have stopped before unclogging.

19. Use only attachments and accessories approved by the manufacturer (e.g. wheel weights, tire chai ns, 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 sections of this manual.

2. Before cleaning, repairing, or inspecting machine 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.

3. 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.

4. Do not change the engine governor setting or over-speed the engine. The governor controls the maximum safe operating speed of the engine.

5. 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 (OEM) parts only. “Use of parts which do not meet the original equipment specifications may lead to improper performance and compromise safety!”

6. 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.

7. Maintain or replace safety and instruction labels, as necessary.

8. Observe proper disposal laws and regulations for gas, oil, etc. to protect the environment.

9. Prior to storing, run machine a few minutes to clear snow from machine and prevent freeze up of auger/impeller.

10. Never store the machine or fuel container inside where there is an open flame, spark or pilot light such as a water heater, furnace, clothes dryer etc.

11. Always refer to the operator’s manual for proper instructions on off-season storage.

WARNING: 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.

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SECTION 2: CONTENTS OF HARDWARE PACK (Boxed Units)

Lay out the hardware according to the illustration below for identification purposes. Part numbers are shown in parentheses. (Hardware pack may contain extra items which are not used on your unit.)

ATTACHING THE HANDLES

Hex Bolts 710-04039 (2)

Hex Bolts 710-1880 (2)

ATTACHING CHUTE DIRECTIONAL CONTROL

Cupped Washer 736-0242

Flat Washer 736-0185 (1)

Lock Washers 736-0119 (4)

Eyebolt (Not Shown) 747-0697

Hex Nuts 712-3010 (2)

Saddle 784-5599 (2)

ATTACHING HANDLE PANEL

ATTACHING CLUTCH CABLES AND SHIFT ROD

(Z Fittings might be already attached to cables)

Ferrule 711-0677

Carriage Bolts 710-0262 (4)

Hex Patch Nuts

712-3068 (4)

Cupped Washers 736-0242 (4)

Z Cable Fitting 746-0778 (2)

Hairpin Clips 714-0104 (2)

ATTACHING THE CLUTCH GRIPS

Jam Nuts 712-0121 (2)

Flat Washers 736-0275 (2)

Hex Screws 710-3103 (2)

REPLACEMENT SHEAR BOLTS

Hex Lock Nuts 712-0429 (2)

Spacer 750-1032 (2)

Hex Top L-Nut 712-0429 (2)

Hex Bolts 710-0890A (2)

Hairpin Clip 714-0104

ATTACHING CHUTE ASSEMBLY

Hex Bolts 710-3015 (2)

Hex Lock Nuts 712-3027 (6)

Chute Flange Keepers 731-0851A (3) Not Shown

NOTE: The augers are secured to the spiral shaft with two sh ea r bolts and hex lock nu ts. If you hit a har d fore ign

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 nee ded.

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SECTION 3: ASSEMBLING YOUR SNOW THROWER

NOTE: References to right or left side of the snow

thrower are determined from behind the unit in the operating position. The “operator’s position” is defined as standing directly behind the snow thrower, facing the handle panel.

NOTE: This Operator’s Manual covers several

models. Snow thrower features vary by model. Not all features discussed in this manual are applicable to all snow thrower models.

Unpacking

Crate

• Remove screws from the top sides and ends of the shipping crate.

• Set panel aside to avoid tire punctures or personal injury.

• Remove and discard plastic bag that covers unit.

• Remove any loose parts included with unit (i.e., Operator’s Manual, etc).

• Roll unit out of crate.

Box

• Remove staples or break glue on top flaps of the carton. Remove any loose parts included with unit (i.e., operator’s manual, etc.) .

• Cut corners of the carton and lay ends down fl at. Remove packing material.

• Roll unit out of carton. Check carton thoroughly for loose parts before discarding.

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 pack, illustrated on the previous page, to assemble the equipment. Identify the loose parts before proceeding to assemble. See Figure 2.

Handle Panel

Auger Control

Tr action Control

Right Clutch Bracket

Left Clutch Bracket

Shift Rod

Left Handle

Right Handle

Loose Parts (Crated Unit)

The augers are secured to the auger shaft with two shear bolts and hex lock nuts. If you hit a foreign object or ice jam, the snow thrower is designed so tha t 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.

ATTACHING CLUTCH CABLES

Z Cable Fitting 746-0778 (2)

REPLACEMENT SHEAR BOLTS

Hex Bolts 710-0890A (2)

Figure 1

Jam Nuts 712-0121 (2)

Hex Lock Nuts 712-0429 (2)

Extension

Cord*

Discharge Chute

Figure 2

1. Right and Left Handles

2. Handle Panel Assembly

3. Right and Left Clutch Brackets

4. Discharge Chute

5. Chute Directional Control

6. Shift Rod

7. Auger and Traction Controls

8. Hardware Pack

9. Extension Cord (*If Equipped)

Chute Directional

Control

NOTE: Follow the Hardware Pack/Loose Parts above

and Assembly instructions below per the packaging of your unit. So if your unit came in a box, proceed to page 7, Assembly (Boxed Unit) and use Hardware Pack on page 5 and Loose Parts in Figure 2.

Page 7

Assembly (Crated Unit)

WARNING: Disconnect the spark plug

wire and ground it against the engine to prevent unintended starting.

• Remove the lower two plastic wing knobs, cupped washers and carriage bolt (eyebolt on the left side) from the lower handle. See Figure 3.

Eyebolt

Wing Knobs,

Washers

and Bolts

Figure 3

If the connector is not properly assembled, the shift rod will pivot and you will not be able to change speeds or change directions.

• Insert “Z” fitting (Hardware A) into hole in clutch grips. See Figure 11. Two extra jam nuts are

included in the hardware pack in the event either are lost during shipping.

• Thread the jam nuts all the wa y up each of the “Z” fittings, toward the handle 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 cab le onto the threaded portion of the “Z” fitting until the rubber bumper (located on the underside of the clut ch lever) only lightly contacts the upper handle.

IMPORTANT:

should NOT be tight. An overtightened cable may prohibit the auger and drive from disengaging.

The cable should have very little slack, but

WARNING: Over-tightening the cable may

prohibit the auger and drive from diseng aging and compromise the safety of the snow thrower. Do NOT overtighten the cable.

• Raise the upper handle assembly until it locks over the lower handle. See Figure 4.

• Observe the lower rear area of the snow thro wer to be sure both cables are aligned with roller guides.

• Secure the upper handle and lower handle with t he two plastic wing knobs, cupped washers and carriage bolt (eyebolt on the left side) previously removed. See Figure 4.

Hex

Nut

Eyebolt

Hairpin Clip

Connector

Wing Knobs

• Once properly adjusted, tighten the jam nut against the coupling end of the cable to lock it in position.

Refer to Auger Control Test on page 13 prior to operating your snow thrower. Read and follow all instructions carefully and perform all adjustments to verify your snow thrower is operating safely and properly.

Assembly (Boxed Unit)

WARNING: Disconnect the spark plug

wire and ground it against the engine to prevent unintended starting.

Attaching Handle Assembly

(Hardware Group A, B and E)

• Attach left handle and left clutch bracket to handle panel with two carriage bolts, cupped washe rs and hex patch nuts. (Be sure the bend in the grip bracket is towards the center of the handle panel.) Do not tighten at this time. See Figure 5.

Handle Panel

Left Bracket

Figure 4

• Adjust the eyebolt on the chute directional control so the rod does not come into contact with the engine by moving the hex nut against the hand le (if necessary). Retighten the wing nut to secu re the directional control in this position.

• Slide the connector down over the end of th e lower shift rod. See Figure 4. Tap the connector until it locks on the lower shift rod.

Carriage

Bolts

Left Handle (Curves in)

Hex Patch Nuts

Bell Washers

Figure 5

Page 8

• Insert curved end of the Z fitting into the top hole in the triangular metal tab on the auger control grip. The triangular metal tab on the auger contro l grip must face the center of the handle panel. See Figure 6.

Triangle Metal Tab

Auger Control

“Z” Fitting

Triangle Metal Tab

Figure 6

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

• Secure with hex bolt, spacer, and hex lock nut. Do not overtighten this bolt as it will prevent the control from automatically returning to their upright position. See Figure 7.

• Repeat process for the right side Tra ction Control.

• Lay handle assembly behind snow thrower. See Figure 8.

• Insert a hex bolt 3/4” long and lock washer through the lower hole on the botto m of the handle.

• 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 tigh ten at this time. See Figure 8.

• Repeat process on the other side.

Handle Panel & Handles

Hex Bolt &

Lock Washer

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 attach the handle assembly to the snow thrower frame.

2” Hex Bolt

Saddle

Left Handle

Spacer

Hex Bolt

Handle Panel

Auger Control

Figure 7

Left Bracket

Hex Lock Nut

“Z” Fitting

Cable Roller Guide

Lock Washers

3/4” Hex Bolt

Figure 9

Attaching Shift Rod (Hardware D)

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

• 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 10.

Page 9

• Thread the ferrule onto the sh ift 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 10.

Auger Drive Clutch

Flat Washer

Shift Lever

Ferrule

Traction Drive Clutch

• Make certain all cables are in the grooves of the cable roller guides in the lower rear of the unit, one on each side. Refer to Figure 9.

• Thread the coupling end of the cab le onto the threaded portion of the Z fitting until the rubb er bumper (located on the underside of the clut ch lever) only lightly contacts the upper handle.

IMPORTANT:

The cable should have very little slack, but should NOT be tight. An overtightened cable may prohibit the auger and drive from disengaging.

Hairpin Clip

Shift Rod

Shift Arm Assembly

Flat Washer

Hairpin Clip

Figure 10

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

Attaching Clutch Cables

(Boxed & Crated Unit) (Hardware D)

Z fittings with jam nuts might be already inserted in each control lever (on the handle panel) at the factory. To attach the cables to the Z fittings, proceed as follows:

NOTE: Two extra jam nuts are included in the

hardware pack in the event either are lost during shipping.

• If Z fittings are not already attached, insert “Z” fitting into hole in clutch grips. See Figure 11.

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

Section prior to operating your snow thrower. Read and follow all instructions carefully and perform all adjustments to verify your snow thrower is operating safely and properly.

Attaching the Chute Assembly (Hardware F)

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

• Place chute flange keepers beneath lip of chute assembly, with the flat side of chute flange keeper facing downward. See Figure 12.

• Insert hex bolt up through chute flange keeper and chute assembly and secure with hex lock nut. After assembling all three chute flange keepers, tigh ten all nuts and bolts securely. Do not overtighten.

Chute Assembly

Hex Bolt

Z Fitting

Jam Nut

Cable Should Be Straight

Figure 11

• If Z fittings are already attached, thread the jam nuts all the way up each of the Z fittings, toward the handle panel.

Hex Lock Nut

Chute Flange Keeper

Figure 12

NOTE: Lock nuts cannot be threaded onto a bolt by

hand. Tighten with two 7/16” or adjustable wrenches.

Page 10

Attaching The Chute Directional Control

(Hardware C)

• Thread one hex nut about halfway on to eye bolt on the chute directional control.

• Insert eye bolt through the hole p rovided in the left handle. See Figure 13.

• Secure with cupped washer (cupped side against the handle) and other hex nut. Do not tighten until after attaching the other end of the chute directional control.

Carriage Bolts

Lower Chute Bracket

Hex Lock Nuts

Cupped Washer

Hex Nut

Eye Bolt

Figure 13

• To align the spiral on the chute directional control, you may have to loosen the carriage bolts and hex lock nuts securing lower chute bracket to the extension on the left side of the chute assemb ly. See Figure 14.

• Insert the end of the control into the hole in the plastic bushing in the lower chute bracket.

• Place the flat washer on the end of the chute directional control, and insert hairpin clip into hole in the end of control. See F igure 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 dir ectional control.

Hairpin Clip

Flat Washer

Chute Directional Control

Lower Chute Bracket

Figure 14

Lamp Wiring (If Equipped)

NOTE: A lamp is an optional feature of some model snow throwers and is NOT standard equipment. On models so equipped, a lamp will either be installed on the dash panel at the factory OR packaged separately as a Kit within the carton, depending on the model.

• If so equipped, wrap the wire fro m the lamp down the right handle until the wire can be plugged int o the alternator lead wire located under the fu el tank. See Figure 15. Lamp wire must not in terfere with any controls or cables.

Lamp

Wire

Figure 15

Lower Handle

Alternator Lead

Page 11

If your unit is not equipped with a lamp, contact Customer Support as instructed on page 2 for information regarding price and availability.

Snow Thrower Model Electric Light Kit

664G OEM-390-255

NOTE: The engines found on snow thrower models

614E and S644E are NOT equipped with an alternator and therefore can NOT accept a light kit.

SECTION 4: KNOW YOUR SNOW THROWER

Discharge Chute

Auger

Traction Drive Clutch

Gas Cap

Oil Fill

Shift Lever

Skid Shoe

Model 664 Shown

Auger Drive Clutch

Chute Directional Control

Choke

Ignition Key

Throttle Control

Clean-out

Tool

Primer

Recoil Starter

Handle

Closed

Open

Fuel Shut-Off Valve

WARNING: Read, understand, and

follow all instructions and warnings on the machine and in this manual before operating.

Shift Lever

The shift lever is located in the center of the handle panel. The shift lever may be moved into one of six positions. Run engine with throttle in the fast positions Run engine with throttle in the fast position. Use the shift lever to determine ground speed. See Figure 16.

Forward

There are five forward speeds on this 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.

Figure 16

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 throwing action.

Traction Control

The traction control is located on the right handle. Squeeze the traction control grip to engage the wheel drive. Release to stop.

Chute Directional Control

The chute directional control is located on left side of the snow thrower. See Figure 16.

To change the direction in which snow is thrown, turn chute directional control as follows:

Page 12

• Crank clockwise to discharge to the left.

• Crank counterclockwise to discharge to the right.

Clean-Out Tool

WARNING: Never use your hand to

clear a clogged discharged chute. Shut off engine and remain behind handles until all moving parts have stopped before unclogging.

The chute clean-out tool is fastened to the top of the auger housing with a mounting clip. The tool is designed to clear a clogged discharged chute. Refer to Operating Your Snow Thrower section for more detailed information regarding the chute clean-out to ol. See Figure 16.

NOTE: This item is fastened with a cable tie to the

rear of the Auger Housing at the factory. Cut the cable tie before operating the snow thrower.

Safety Ignition Key

The safety ignition key must be fully inserted in the switch before the unit will start. Remove th e ignition key when the snow thrower is not in use. See Figure 16.

IMPORTANT:

attempt to start the engine. Doing so may cause it to break.

Do NOT “turn” the ignition key in an

Fuel Shut-off Valve (Optional Equipment)

On models so equipped, the fuel sh ut-off valve, located under fuel tank, controls fuel-flow from t he gas tank. See Figure 16.

Skid Shoe

The position of the skid shoe is determined by the condition of the ground from where snow has to be removed. See Figure 16.

Throttle Control

The throttle control is located on the engine. I t regulates the speed of the engine and will shut off the engine when pushed down completely. 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. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or w hile the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition.

•A plastic cup is 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.

To Start Engine

• Attach spark plug wire to spark plug. Make certain the metal loop on the end of the spark plug wire (inside the boot) is fastened securely over the metal tip on the spark plug.

• Make certain the fuel shut-off valve, if so equipped, is in the OPEN (vertical) position.

• Make certain the auger and drive clutch levers are in the disengaged (released) position.

• Move throttle control up to FAST position. Insert ignition key into slot. Make sure it snaps into place.

Do not turn key

NOTE:

inserted into ignition slot in carb uretor cover.

Electric Starter (If Equipped)

• Determine that your house wiring is a three-wire

• If your house wiring system is not a three-wire

Engine will not start unless ignition key is

grounded system. Ask a licensed electrician if you are not certain.

grounded system, do not use this electric starter under any conditions.

Page 13

WARNING: The optional electric starter

is equipped with a grounded three-wire power cord and plug, and is designed to operate on 120 volt AC household current. It must be used with a properly grounded three-prong receptacle at all times to avoid the possibility of electric shock. Follow all instructions carefully prior to operating the electric starter.

• 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.

If you have a grounded three-prong receptacle, proceed as follows:

• Connect power cord to switch box on engine. Plug the other end of power cord into a three-prong 120volt, grounded, AC receptacle.

• Rotate choke knob to FULL choke position (cold engine start). If engine is warm, place choke in OFF position instead of FULL.

• Push primer button two or three times for cold engine start, making sure to cover vent hole in primer button when pushing. DO NOT use primer to restart a warm engine after a sho rt shutdown.

• Push starter button to start engine.

• When engine starts, release starter b utton and move choke gradually to OFF. If engine falters, move choke immediately to FULL and then gradually to OFF.

• When disconnecting the power cord, always unplug from the three-prong receptacle fir st and then from the snow thrower.

Recoil Starter

• Rotate choke knob to FULL choke position (cold engine start). If engine is warm, place choke in OFF position instead of FULL.

• Push primer button two or three times for cold engine start. DO NOT use primer to restart a warm engine after a short shutdown.

NOTE: Always cover vent hole in primer button when

pushing. Additional priming may be necessary for first start if temperature is below 15 degrees Fahrenheit.

• Grasp starter handle and pull rope out slowly, until it pulls slightly harder. Let rope rewind slowly.

• 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.

• 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 box on engi ne, 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.

Recoil Starter

• With engine running, pull starter r ope 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 engine or starter.

• To stop engine, move throttle control to “stop” or “off” position.

• 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.

NOTE: Do not lose ignition key. Keep it in a safe

place. Engine will not start without the ignition key.

• Wipe all snow and moisture from the carburetor cover in the area of the control levers. Also, move control levers back and forth several times.

To 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 grip and the augers will turn. Release it and the augers will stop.

• Squeeze traction control grip and the snow thrower will move. Release it and drive motion will stop.

• NEVER move shift lever without releasing drive clutch.

To Engage Augers

• To engage the augers and start throwing sn ow, squeeze the auger control grip against t he left handle. Release to stop the augers.

Auger Control Test

IMPORTANT:

operating your snow thrower for the first time and at the start of each winter season.

Perform the following test before

Page 14

Check the adjustment of the auger control as follows:

• When the auger control is released and in the disengaged “up” position, the cable should have very little slack. It should NOT be tight.

• In a well-ventilated area, start the snow thrower engine as instructed earlier in this section under the heading Starting Engine. Make sure the throttle is set in the FAST position.

• While standing in the operator’s position (behind the snow thrower), engage the auger.

• Allow the auger to remain engaged for approximately ten (10) seconds befo re releasing the auger control. Repeat this several times.

• With the engine running in the FAST position and the auger control lever in the diseng aged “up” position, walk to the front of the machine.

• Confirm that the auger has completely stopped rotating and shows NO signs of motion.

IMPORTANT:

immediately return to the operator’s position and shut off the engine. Wait for ALL moving parts to stop before re-adjusting the auger control.

• To readjust the control cable, loosen the hex jam nut on the auger control cable “Z” fitting.

• Rotate the coupling end of the cable counterclockwise to provide more slack.

• Retighten the hex jam nut. See Figure 17.

• Repeat Auger Control Test to verify proper adjustment has been achieved.

If the auger shows ANY signs of rotating,

WARNING: Never use your hands to clean

snow and ice from the discharge chute or auger housing

• Refasten the clean-out tool to the mounting clip on the rear of the auger housing, reinsert the ignit ion key and start the snow thrower’s engine.

• While standing in the operator’s position (behind the snow thrower), engage the auger clutch lever for a few seconds to clear any remaining snow and ice from the discharge chute.

Drift Cutters (If Equipped)

Drift cutters should be used when operating the snow thrower in heavy drift conditions.

On models so equipped, drift cutters are assembled to the auger housing inverted. Remove the carriag e bolts by unthreading the hex nuts which secure them, and reinstall the drift cutters in their proper position before operating the snow thrower. See Figure 18.

Z Fitting

Hex Nut

Cable Should Be Straight

Figure 17

Chute Clean-Out Tool

The chute clean-out tool is conveniently fastened to th e rear of the auger housing with a mount ing clip. Should snow and ice lodge itself in the discharge chute during operation, proceed as follows to safely clean the chute and chute opening:

• Release both the Auger Control Lever and the Traction/Auger Control Loc k Lev er

• 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 ha s formed in and near the discharge chute.

Drift

Cutter

Carriage Screws /

Hex Nuts

Figure 18

If your unit is not equipped with drift cutters, contact Customer Support as instructed on page 2 for information regarding price and availability.

Snow Thrower Model Drift Cutter Kit

All models OEM-390-679

Tire Chains (If Equipped)

Tire chains should be used whenever extra traction is needed. If your unit is not equipped with tire chains, contact Customer Support as instructed on page 2 for information regarding price and availability.

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.

Page 15

WARNING: The muffler, engine, and their

surrounding areas become hot and can cause a burn. Do not touch.

• Discharge snow downwind whenever possible. Slightly overlap each previous swath.

SECTION 6: MAKING ADJUSTMENTS

• 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.

• Avoid possible starter freeze-up. Clean the snow thrower thoroughly after each use.

WARNING: Never attempt to make any

adjustments while the engine is running, except where specified in operator’s manual.

Tire Pressure (Pneumatic Tires)

• The tires are overinflated for shippi ng purposes. Before operating check tire pressure and reduce pressure to between 15 psi and 20 psi.

NOTE: If the tire pressure is not equal in both tires,

the unit may pull to one side or the oth er.

Traction Control and Shift Lever

• To check the adjustment of the traction control clutch and shift lever, proceed as follows:

• With the engine off, move the shift lever all the way forward to the highest speed. Wit h the traction control lever released, push the snow thrower forward. The unit should roll for ward. Then enga ge 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 they should not, loosen the jam nut on the traction control cable and unthread the cable one turn.

• If the wheels do not stop when you eng age the traction control clutch 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.

• Tip the snow thrower so that it rests on the au ger housing. See Figure 19.

• Remove the frame cover underneath the snow thrower by removing six self-tapping screws.

• When the traction control is released, there must be clearance between the friction wheel and the drive plate in all positions of the shift lever.

Frame Cover

Auger Housing

Figure 19

WARNING: Drain the gasoline out of

snow thrower engine, place a piece of plastic film under the gas cap to avoid spillage before beginning the job.

To test further for correct adjustment, if necessary, proceed as follows:

Page 16

• With the traction control is engaged, t he friction wheel must contact the drive plate. See Figure 20.

Friction Wheel

Gear Shaft

Drive Plate

Gap

Figure 20

If adjustment is necessary:

• Loosen the jam nut on the traction control cable and thread the cable in or out as necessary.

• Retighten the jam nut to secure the cable when correct adjustment is reached.

• Reassemble the frame cover.

NOTE: If you placed plastic under the gas cap earlier,

remove it now.

Chute Assembly

The distance snow is thrown can be adjusted by changing the angle of the chute assembly. To do so, stop the engine by removing the ignition key and loosen the plastic wing knobs found on ei ther side of the discharge chute. Pivot the chute upward or downwar d before re-tightening the wing knobs.

• Use a middle or lower position when the area to be cleared is uneven.

Carriage Bolts

Hex Nuts

Skid Shoes

Figure 21

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.

• 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 secure ly.

Carburetor

• Minor carburetor adjustment may be requir ed to compensate for differences in fuel, temperatu re, altitude and load.

• Refer to the separate engine manual, packed with your unit, for carburetor adjustment inform ation.

Auger Control

Refer to Auger Control Test in the Operating Section to adjust the auger control.

Skid Shoes

The space between the shave plate and the g round can be adjusted. See Figure 21.

• For close snow removal on a smooth surf ace, raise skid shoes higher on the auger housing.

WARNING: If any adjustments need to

be made to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts. Be careful of muffler, engine and other surrounding heated surfaces.

Adjusting Shift Rod

• Remove the hairpin clip and flat washer fr om the ferrule and remove the ferrule from the shift leve r. Place the shift lever in the fastest forward speed position.

• Push down on the shift arm assembly as far as it will go. Thread the ferrule up or down the shift rod and align it with the hole closest to the shift knob on the narrow side of the shift lever assembly behind the handle panel. Refer to Figure 10.

Page 17

NOTE: Make certain to check for correct adjustment

of the shift rod as instructed in the Final Adjustments section before operating the snow thrower.

Drive Wheels

• The wheels may be adjusted for two different methods of operation. Follow the steps below for adjustment. See Figure 22.

Inside Hole In Axle

Click Pin In Outside Hole

Figure 22

One Wheel Driving

• On the right side of the unit, place click pin in the outside axle hole only. Do not place pin through wheel hub.This position gives power drive to the left wheel only, making the unit easier to maneuver.

Both Wheels Driving

• Rotate wheel assembly to align hole in the hub with the inner hole on the axle shaft. Insert click pin in the hole. Outer axle shaft hole should be visible.

IMPORTANT:

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.

NEVER operate the snow thrower with the

SECTION 7: MAINTAINING YOUR SNOW THROWER

WARNING: Before lubricat ing, repair-

ing, 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

Engine

Refer to the separate engine manua l packed with your unit for all engine lubrication instructions.

WARNING: If any adjustments need to

be made to the engine while the engine is running (e.g. carburetor), keep clear of al l moving parts. Be careful of muffler, engine and other surrounding heated surfaces.

Gear Shaft

• Lubricate the gear shaft with a good all-weather multi-purpose light grease at least once a seas on or after every 25 hours of operation.

IMPORTANT:

wheel and drive plate.

Keep all grease and oil off the friction

Wheels

• Oil or spray lubricant into bearings at wheels at least once a season. Pull click pin, remove wheels, clean and coat axles with a multipurpose automotive grease. See Figure 23.

Chute Directional Control

• The worm gear on the chute directional control should be greased with multipurpose automotive grease.

Click Pin

Axle

Figure 23

Page 18

Auger Shaft

• At least once a season, remove shear bolts on auger shaft. Oil or spray lubricant inside shaf t and lubricate the auger bearings. See Figure 24.

Vent Plug

Chain

Shift Lever

Gear Shaft

Plastic Bearing

Shear Bolts

Figure 24

Drive and Shifting Mechanism

Remove rear cover. Oil any chains, sprockets, gears, bearings, shafts, and shifting mechanism at lea st once a season. Use engine oil or a spray lubricant. Avoid getting oil on rubber friction wheel and aluminum drive plate. See Figure 25.

Plastic Bearing

Gear Case

The worm gear case has been filled with grease at the factory. If disassembled for any reason, lubricate with 2 ounces of shell grease, part number 737-0168.

IMPORTANT:

the seals could result. Be sure the vent plug is free of grease in order to relieve pressure.

SECTION 8: SERVICING YOUR SNOW THROWER

WARNING: Before servicin g, repairing,

or inspecting, disengage all clutch lever s 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

• To remove shave plate, remove the carriage bolts , cupped washers and hex nuts which attach it to the snow thrower housing. Reassemble new shave plate, making sure heads of carriage bolt s are to the inside of housing. Tighten securely.

Avoid oil on friction wheel and drive plate

Figure 25

Do not overfill the gear case. Damage to

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 when necessary.

• To remove skid shoes, remove the four carriage bolts, cupped washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the four carriage bolts, cupped washers (cupped side goes against skid shoes) and hex nuts. See Figure 26.

Skid Shoe

Carriage Bolts

Shave Plate

Skid Shoe

Figure 26

Hex Nuts

Page 19

Augers

• The augers are secured to the spiral shaft wit h two shear bolts and hex lock nuts. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear. Refer to Figure 24.

• If the augers will not turn, check to see if the bolts have sheared. Replacement shear bolts and hex lock nuts have been provided with the snow thrower. When replacing bolts, spray an oil lubricant into shaft before inserting new bolts.

IMPORTANT:

NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components as a result of doing so will NOT be covered by your snow thrower’s warranty.

Belt Removal and Replacement

Auger Belts

NOTE: It is necessary to remove both belts in order to

change either one (Model 614E has only one auger belt). If changing just one belt, be certain to check the condition of the other belt.

• Roll the front and rear auger belt s off the engine pulley. See Figure 28.

Auger Belt

Idler Pulley

Engine Pulley

Idler Pulley

Drive Belt

Drive Pulley

Figure 28

• Unhook the idler spring from the hex bolt on the auger housing. See Figure 29.

Friction Wheel Assembly

• Remove the plastic belt cover on the front of the engine by removing the two self-tapping scre ws. 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.

Self-Tapping Screw

Belt Cover

Figure 27

• Remove six self-tapping screws from the frame cover underneath the snow thrower.

Support Bracket

Auger Belt

Auger

Pulley

Idler Spring

Frame

Auger Housing

Gear Shaft

Support Bracket Spring

Figure 29

• Unhook the support bracket spring from the frame.

NOTE: It may be necessary to loosen the six hex nuts

that fasten the frame to the auger housing to aid in belt removal.

• Lift the rear auger belt from the auger pulley, and slip belt between the support bracket and the a uger pulley. Repeat this step to remove the front aug er belt. See Figure 29.

• Reassemble auger drive belt(s) by following instructions in reverse order.

Page 20

Drive Belt

• Follow first four steps of previous instructions .

• Pull idler pulley up, and lift belt off engine pulley and friction wheel disc. See Figure 28.

• Using a wrench, loosen the nut on the stop bolt un til the support bracket rests on the auger pulley. See Figure 30.

• Slip belt between friction wheel and friction wheel disc. Remove and replace belt. Reassemble in reverse order.

NOTE: The support bracke t must re st on the stop bo lt

after the new belt has been assembled. See Figure 30 .

Friction Wheel Disc

Friction Wheel

Drive Belt

• Lightly tap the hex nut to dislodge the ball bearing from the right side of the frame. Remove the hex nut and bell washer from the left end of the shaf t.

• Slide the gear shaft to the right then slide the friction wheel assembly from the shaft.

• Remove the four screws from the friction wh eel assembly. See Figure 32.

• Remove the friction wheel rubber from be tween the friction wheel plate.

• Reassemble new friction wheel r ubber to the friction wheel assembly, tightening the four screws in rotation and with equal force. See Figure 32.

Screws

Friction Wheel Rubber

Hub

Support Bracket

Stop Bolt

Figure 30

Friction Wheel Rubber

Replace the friction wheel rubber if any signs of wear or cracking are found. Follow instructions below to replace the rubber.

• Tip the snow thrower up and forward, so that it rests on housing. Refer to Figure 19.

• Remove six self-tapping screws from the frame cover underneath the snow thrower.

• Remove the click pins which secure the wheels, and remove the wheels from the axle.

• Using a wrench to hold the shaft, loosen, but do not completely remove, the hex nut and bell washer on the left end of gear shaft. See Figure 31.

Hex Nut & Bell Washer

Figure 31

Friction Wheel Plates

Figure 32

• Slide friction wheel assembly back onto the gear shaft. Be sure to align the pin on the shift rod with hole in the friction wheel assembly. See Figure 29.

• Reassemble gear shaft and the wheels. Reattach the frame cover. Flip snow thrower back to its operating position and remove any plastic from under the machine or around the gas cap if you had put it earlier.

Off-Season Storage

WARNING: Never store the machine or

fuel container indoors where there is an open flame, spark or pilot light such as on a water heater, furnace, clothes dryer or other gas appliances.

WARNING: Drain fuel into an approved

container outdoors, away from open flame. Allow engine to cool. Extinguish cigarettes, cigars, pipes, and other sources of ignition prior to draining fuel. Fuel left in engine for extended period deteriorates and will cause serious starting problems.

If unit is to be stored over 30 days, prepare for storage as follows:

• Remove gasoline from carburetor and fuel tank t o prevent gum deposits from forming on the se parts and causing possible malfunction of engine.

Page 21

• Run engine until fuel tank is empty and engine stops due to lack of fuel.

• Drain carburetor by pressing upward on bowl drain, located below the carburetor cover.

NOTE: Fuel stabilizer, or “Sta-Bil” (Included with

certain units), is an acceptable alternative in min imizing the formation of fuel gum deposit s during storage. Do not drain carburetor if using fuel stabilizer.

• Wipe equipment with an oiled rag to prevent rust.

• Remove spark plug and pour one ounce of engine oil through spark plug hole into cylinder. Cover spark plug hole with rag. Crank engine several times to distribute oil. Replace spark plug.

• Follow the lubrication recommendations found in the Maintenance Section.

• Always store the snow thrower in a clean, dry area.

When storing any type of power equipment in an unventilated or metal storage shed, care sh ould be taken to rust proof the equipment. Using a light oil or silicone, coat the equipment, especially any chains, springs, bearings and cables.

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).

Engine runs erratic Unit running on CHOKE.

Blocked fuel line or stale fuel. Water or dirt in fuel system.

Carburetor out of adjustment.

Loss of power Spark plug wire loose.

Gas cap vent hole plugged. Exhaust port plugged.

Engine overheats Carburetor not adjusted

properly. Incorrect fuel mixture.

Excessive vibration Loose parts or damaged auger. Stop engine immediately and disconnect spark plug wire. Tighten

Unit fails to propel itself Incorrect adjustment of drive

cable.

Drive belt loose or damaged. Unit fails to discharge snow

Discharge chute clogged.

Foreign object lodged in auger.

Incorrect adjustment of drive

cable.

Drive belt loose or damaged.

Fill tank with clean, fresh gasoline. 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. Open fuel shut-off valve.

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. Connect and tighten spark plug wire. Remove ice and snow from cap. Be certain vent hole is clear. Clean following the engine manual. 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.

all bolts and nuts. Make all necessary repairs. If vibration continues, have unit serviced by an authorized service dealer. Adjust drive cable.

Replace drive belt. 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.

Replace drive belt.

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

Page 22

SECTION 10: MODELS 614E, 644E, & 664G

Page 23

Models 614E, 644E, & 664G

REF.

NO.

1. 712-0116 Lock Jam Nut 3/8-24

2. 756-0178 Flat Idler

3. 784-5632B Auger Idler Arm

4. 710-0459A Hex Cap Screw 3/8-24 x 1.50

5. 741-0475 Bushing

6. 736-0242 Bell Washer

7. 712-3010 Hex Nut 5/16-18

8. 712-3027 Hex Lock Nut 1/4-20

10. 705-5226 Reinforcement Chute

11. 731-1379C Chute Adapter

12. 710-0703 Carriage Screw 1/4-20 x.62

13. 710-0451 Carriage Bolt 5/16-18

14. 738-0281 Shoulder Screw

15. 736-0167 Flat Washer

16. 712-3010 Hex Nut 5/16-18

17. 732-0611 Extension Spring

18. 736-0119 Lock Washer 5/16

19. 05931A Bearing Housing

20. 741-0309 Ball Bearing

21. 684-0039D 24” Housing Assembly

22. 736-0169 Lock Washer 3/8

PART

NO. DESCRIPTION

684-0041D 28” Housing Assembly

REF.

NO.

23. 712-0798 Hex Nut 3/8-16

24. 784-5580 Slide Shoe

25. 784-5581A 24” Shave Plate

26. 684-0065 Impeller Assembly

27. 715-0114 Pin

28. 618-0120A 24” Gear Assembly

29. 710-0726 Hex Washer Screw 5/16-12

30. 784-5618 Bearing Housing

31. 741-0245 Hex Flange Bearing

32. 736-0188 Flat Washer

33. 741-0493A Flange Bushing

34. 605-5188A Spiral 24” RH

35. 605-5189A Spiral 24” LH

36. 710-0890A Shear Bolt 5/16-18 x 1.5

37. 712-0429 Lock Nut 5/16-18

38. 784-5647 Chute Directional Control Bracket

39. 731-2635 Clean-Out Tool Mount

40. 731-2643 Clean-Out Tool

PART

NO. DESCRIPTION

784-5582A 28” Shave Plate

618-0122A 28” Gear Assembly

605-5196A Spiral 28” RH 605-5197A Spiral 28” LH

Page 24

Models 614E, 644E, & 664G

22*

27*

64†

51††

50††

52††

49††

47††

48††

65†

57†

60†

62†

63†

61†

59†

58†

†Models w/Folding Handles *Ref. Nos. 22 and 27 reversed for fold down handles.

Page 25

Models 614E, 644E, & 664G

REF.

NO.

1. 712-0116 Jam Lock Nut 3/8-24

2. 732-0193 Compression Spring

3. 736-0105 Bell Washer

4. 784-5619A Shift Handle

5. 710-0459A Hex Cap Screw 3/8-24

6. 710-0788 Tap Screw 1/4-20

7. 714-0104 Cotter Pin

8. 720-0232 Shift Knob - Black

9. 711-0677 F errule

10. 726-0100 Push Cap

12. 720-0201A Crank Knob - Black

13. 684-0022 Chute Crank Assembly

14. 747-0697 Eyebolt

- 735-0234 Grommet only

15. 684-0008A Shift Arm Assy

16. 720-0274 Grip

17. 705-5233A Clutch Lever Assy LH - Black

18. 750-1032 Spacer

19. 735-0199A Rubber Bumper

20. 746-0778 Z Cable Fitting

21. 705-5275 Lever Bracket LH

22. 712-0429 Lock Hex Nut 5/16-18

23. 736-0119 Lock Washer 5/16

24. 712-3010 Hex Nut 5/16-18

25. 705-5274 Lever Bracket RH

26. 749-0910C Handle RH

27. 710-3103 Hex Cap Screw 5/16-18 x 2.0

28. 710-0262 Carriage Bolt 5/16-18 x 1.50

29. 684-0106 Control Panel Assy

PART

NO. DESCRIPTION

720-04030 Shift Knob - Yellow

720-04031 Crank Knob - Yellow

684-04054 Clutch Lever Assy LH - Yellow 705-5234A Clutch Lever Assy RH - Black 684-04053 Clutch Lever Assy RH - Yellow

REF.

NO.

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

43. 731-1300B Lower Chute

44. 712-3027 Hex Lock Nut 1/4-20

45. 731-0851A Flange Keeper

46. 710-3015 Hex Cap Screw 1/4-20 x.75

47. 629-0058†† Round Light Harness

48. 710-1652†† Hex Tap Screw 1/4-20 x.625

49. 710-1003†† Hex Screw

50. 712-0415†† Hex Nut

51. 725-1300†† Headlight 18 Watts

52. 731-1317†† Headlight Cover

53. 736-0242 Bell Washer

54. 712-3068 Hex Patch Nut 5/16-18

55. 736-0275 Flat Washer.344 ID x.688 OD

56. 747-0921 Shift Rod

57. 747-0620A† Upper Shift Rod

58. 747-0621† Lower Shift Rod

59. 750-0963† Clutch Rod Connector

60. 710-0449† Carriage Screw 5/16-18

61. 710-0643† Hex Cap Screw 5/16-18

62. 736-0451† Saddle Washer.320 ID x.93 OD

63. 749-0951† Lower Handle

64. 749-0952A† Upper Handle RH

65. 749-0953A† Upper Handle LH † Models w/Fold Down Handles Only †† If Equipped

PART

NO. DESCRIPTION

720-04032 Knob - Yellow

Page 26

Models 614E, 644E, & 664G

Drive Clutch

Cable

Auger Clutch Cable

16” Wheels

13” or 15” Wheels

Auger Clutch Cable

Blower Housing

Page 27

Models 614E, 644E, & 664G

REF.

NO.

1. 710-0599 Hex Screw

2. 784-5688 Drive Cable Guide Bracket

3. 784-5687A Auger Clutch Cable Bracket

4. 756-0625 Roller Cable

5. 738-0924 Hex Screw 1/4-28

6. 784-5630B Frame Assembly

7. 741-0563 Ball Bearing

8. 736-0105 Bell Washer

9. 712-0116 Lock Jam Nut

10. 741-4026 Hex Flange Bearing

11. 736-0188 Flat Washer

12. 784-5689A Front Support Guide Bracket

13. 710-0538 Lock Hex Screw

14. 736-0242 Bell Washer.340 ID x.872 OD

15. 714-0474 Cotter Pin

16. 736-0160 Flat Washer.536 ID x.930 OD

17. 710-0809 Hex Washer Screw 1/4-20

18. 784-5590 Frame Shift Bracket

19. 784-5638A Frame Cover

20. 710-1652 Hex Washer 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

PART

NO. DESCRIPTION

REF.

NO.

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 Nut 3/8-24

35. 746-0898B Drive Cable

36. 738-0869 Axle 13” Wheels

37. 790-00010 Friction Pla te

38. 735-0243B Friction Wheel Rubber

39. 718-0301A Friction Wheel Hub

40. 618-0063A Friction Wheel Bearing

41. 710-1652 Tap Screw 1/4-20

42. 712-0703A Insert Nut 5/16-18

43. 711-1364 Clevis Pin

44. 736-0142 Flat Washer.281 ID x.50 OD

45. 714-0507 Cotter Pin

46. 790-00011 Friction Pla te

47. 716-0102 Snap Ring

PART

NO. DESCRIPTION

738-0830 Axle 16” Wheels

Page 28

Models 614E

REF.

NO.

1. 710-1652 Hex Washer Screw 1/4-20 x.5

2. 731-1324 Belt Cover

3. 732-0339 Extension Spring

4. 710-0627 Hex Screw 5/16-24 x.75

5. 710-3005 Hex Cap Screw 3/8-16 x 1.25

6. 05896A Drive Clutch Bracket

7. 748-0234 Shoulder Spacer

8. 756-0985 Pulley Half

9. 754-0343 V -Belt

10. 756-0984 Pulley Half

11. 736-0270 Bell Washer

12. 710-0230 Hex Cap Screw 1/4-28 x.50

13. 756-0313 Flat Idler

PART

NO. DESCRIPTION

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.

NO.

14. 710-1245B Lock 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

PART

NO. DESCRIPTION

Page 29

Models 644E & 664G

REF.

NO.

1. 710-1652 Hex Washer Screw 1/4-20 x.50

2. 731-1324 Belt Cover

3. 710-3005 Hex Cap Screw 3/8-16 x 1.25

4. 732-0710 Extension Spring

5. 710-0627 Hex Screw 5/16-24 x.75

6. 05896A Drive Clutch Idler Bracket

7. 748-0234 Shoulder Spacer

8. 756-0987 Pulley Half

9. 754-0346 Belt

10. 756-0986 Pulley Half

11. 736-0270 Bell Washer

12. 710-0230 Hex Cap Screw

13. 756-0313 Flat Idler

14. 712-0181 Lock Jam Nut 3/8-16

PART

NO. DESCRIPTION

REF.

NO.

15. 710-0654A Hex Washer Screw 3/8-16 x 1.0

16. 710-1245B 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

PART

NO. DESCRIPTION

Page 30

Models 614E, 644E, & 664G

REF.

NO.

1. 618-0123 Housing—R.H.

2. 618-0124 Housing—L.H.

3. 710-0642 Hex Screw 1/4-20 x.75

4. 711-0908A Spiral Axle 24"

5. 714-0161 Key

6. 715-0143 Spiral Pin

7. 717-0526 Worm Shaft

8. 717-0528 Worm Gear

9. 718-0186 Thr ust Collar

PART

NO. DESCRIPTION

711-0910A Spiral Axle 28"

REF.

NO.

10. 721-0325 Plug

11. 721-0327 Oil Seal

12. 736-0351 Flat Washer

13. 736-0369 Flat Washer

14. 736-0445 Flat Washer

15. 741-0662 Flange Bearing

16. 741-0663 Flange Bearing

17. 618-0120A Ass’y. Complete 24"

PART

NO. DESCRIPTION

618-0122A Ass’y. Complete 28"

Wheel Assembly

SIZE REF. NO. 1

WHEEL ASS’Y

COMPLETE

13 x 4 634-0114A 734-1732 734-0255 734-1713A 741-0401 731-04044 13 x 5 734-1714A 734-1527 734-0255 734-1713A 741-0401 731-04044

16.5 x 4.8 734-1709A 734-1530 734-0255 734-1 708A 741-0401 731-0404 3

REF. NO. 2

TIRE

ONLY

REF. NO. 3

AIR

VALVE

REF. NO. 4

RIM

ONLY

BEARING (2)

REF. NO. 5

SLEEVE

REF. NO. 6

SPACER

Page 31

NOTES

Page 32

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD LLC 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 charge, any part found to be defective in materials 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, commercial 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 part, accessory or attachment not approved by MTD for use with the product(s) covered by this manual will void your warranty as to any resulting damage.

Normal wear parts or components thereof are subject to separate terms as follows: All normal wear parts or component 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 materials or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to: batteries, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates, auger spiral rubber, and tires.

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, check your Yellow Pages, or contact MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, or call 1-800-800-7310 or 1330-220-4683 or log on to our Web site at www.mtdproducts.com.

This limited warranty does not provide coverage in the following cases:

a. The engine or component parts thereof. These items

may carry a separate manufacturer’s warranty. Refer to applicable manufacturer’s warranty for terms and conditions.

b. Log splitter pumps, valves, and cylinders have a

separate one year warranty.

c. Routine maintenance 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. Replacement parts that are not genuine MTD parts. f. Service completed by someone other than an

authorized service dealer. g. Transportation charges and service calls.

No implied warranty, including any implied w arranty of merchantability of 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, 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 warranty, the exclusive remedy is repair or replacement of the product as set forth above.

The provisions as set forth in this warranty provide the sole and exclusive remedy arising from the sale. MTD shall not be liable for incidental or consequential loss or damage including, without limitation, expenses incurred for substitute or replacement lawn care services or for rental expenses to temporarily replace a warranted product.

Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above exclusions or limitations may not apply to you.

In no event shall recovery of any kind be gre ater than the amount of the purchase price of the product sold. Alteration

of safety features of the product shall void this warranty.

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 misuse or inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser or to 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.

IMPORTANT: Owner must present Original Proof of Purchase to obtain warranty coverage.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310, 1-330-220-4683

MTD 644E, 664G User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual