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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 forestcovered, 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.
770-10045G.fm
(5/2003)
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 performance. 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 provided below. The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer.
You can locate the model number by standing behind the unit in the operating position and looking down at the rear frame below the engine. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below.
Copy the model number here:
www.mtdproducts.com
MTD LLC
P. O. BOX 361131
CLEVELAND,OH 44136
330-220-4683
800-800-7310
Copy the serial number here:
ENGINE INFORMATION
The engine manufacturer is responsible for all engine-related issues with regards to performance, power-rating, specifications, warranty and service. Please refer to the engine manufacturer’s Owner’s/Operator’s Manual packed separately with your unit for more information.
CALLING CUSTOMER SUPPORT
Please do NOT 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 Department.
Call 1- (330) 220-4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support representative. Please have your unit’s model number and serial number ready 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
2
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.
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.
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. Thrown objects which ricochet can cause serious injury to the eyes.
3.
Do not operate without wearing adequate winter outer garments. Do not wear jewelry, long scarves or other loose clothing, which could become entangled in moving parts. Wear footwear which will improve footing on slippery surfaces.
4.
Use a 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.
3
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.
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 chains, cabs etc.).
20. If situations occur which are not covered in this manual, use care and good judgment. Contact your dealer or telephone 1-800-800-7310 for assistance and the name of your nearest servicing dealer.
MAINTENANCE AND STORAGE
1.
Never tamper with safety devices. Check their proper operation regularly. Refer to the maintenance and adjustment 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.
4
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.)
A
ATTACHING THE HANDLES
Lock Washers
736-0119 (4)
Hex Bolts
710-04039 (2)
B
ATTACHING HANDLE PANEL
Carriage Bolts
710-0262 (4)
Hex Bolts
710-1880 (2)
Saddle
784-5599 (2)
C
ATTACHING CHUTE DIRECTIONAL CONTROL
Cupped Washer
736-0242
Eyebolt (Not Shown)
747-0697
Hex Nuts
712-3010 (2)
Flat Washer
736-0185 (1)
Hex Patch Nuts
712-3068 (4)
Cupped Washers
736-0242 (4)
D
ATTACHING CLUTCH CABLES AND SHIFT ROD
(Z Fittings might be already attached to cables)
Hex Nuts
712-0121 (2)
Z Cable Fitting
746-0778 (2)
Hairpin Clip
714-0104
F
ATTACHING CHUTE ASSEMBLY
Hex Bolts
710-3015 (2)
Hex Lock Nuts
712-3027 (6)
Ferrule
711-0677
Hairpin Clips
714-0104 (2)
E
ATTACHING THE CLUTCH GRIPS
Flat Washers
736-0275 (2)
Hex Screws
710-3103 (2)
Spacer
750-1032 (2)
Hex Top L-Nut
712-0429 (2)
G
REPLACEMENT SHEAR BOLTS
Hex Lock Nuts
712-0429 (2)
Hex Bolts
710-0890A (2)
Chute Flange Keepers
731-0851A (3) Not Shown
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.
5
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.
Auger Control
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 flat.
Remove packing material.
• Roll unit out of carton. Check carton thoroughly for loose parts before discarding.
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 that the bolts may shear. Two replacement shear bolts and nuts are provided for your convenience. Store in a safe place until needed. See Figure 1.
Shear Bolts
Hex Lock
Nuts
Figure 1
Loose Parts
(Boxed Unit)
Listed below are the parts of the snow thrower packed loose with units that come unassembled in a box. You will need these parts along with hardware from the hardware pack, illustrated on the previous page, to assemble the equipment. Identify the loose parts before proceeding to assemble. See Figure 2.
Left Handle
Discharge
Chute
Right Clutch
Bracket
Left Clutch
Bracket
Shift Rod
Extension
Cord*
Traction Control
Right Handle
Handle Panel
Chute Directional
Control
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)
NOTE:
Follow the Assembly instructions below per the packaging of your unit. So if your unit came in a box, proceed to page 7, Assembly (Boxed Unit).
Assembly
(Crated Unit)
WARNING:
Disconnect the spark plug wire and ground it against the engine to prevent unintended starting.
6
• Remove the lower two plastic wing knobs, cupped washers and carriage bolt (eyebolt on the left side) from the lower handle. See Figure 3.
Hex
Nut
Hairpin Clip
Wing Knobs,
Washers and Bolts
Eyebolt
Figure 3
• Raise the upper handle assembly until it locks over the lower handle. See Figure 4.
• Observe the lower rear area of the snow thrower to be sure both cables are aligned with roller guides.
• Secure the upper handle and lower handle with the two plastic wing knobs, cupped washers and carriage bolt (eyebolt on the left side) previously removed. See Figure 4.
Eyebolt
Connector
Wing Knobs
• Thread the jam nuts all the way 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 cable onto the threaded portion of the “Z” fitting until the rubber bumper (located on the underside of the clutch lever) only lightly contacts the upper handle.
IMPORTANT:
The cable should have very little slack, but should NOT be tight. An overtightened cable may prohibit the auger and drive from disengaging.
WARNING:
Over-tightening the cable may prohibit the auger and drive from disengaging and compromise the safety of the snow thrower. Do NOT overtighten the cable.
• Once properly adjusted, tighten the jam nut against the coupling end of the cable to lock it in position.
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 washers 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 handle (if necessary). Retighten the wing nut to secure the directional control in this position.
• Slide the connector down over the end of the lower shift rod. See Figure 4. Tap the connector until it
locks on the lower shift rod.
If the connector is not properly assembled, the shift rod will pivot and you will not be able to change speeds or change directions.
Carriage
Bolts
Left Handle
(Curves in)
7
Hex
Patch Nuts
Bell Washers
Figure 5
• 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 control grip must face the center of the handle panel.
See Figure 6.
Triangle
Metal Tab
Auger Control
• Repeat process for the right side Traction 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 bottom 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 tighten at this time. See Figure 8.
• Repeat process on the other side.
“Z” Fitting
Handle Panel &
Handles
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.
Auger Control
Left
Handle
Left Bracket
Hex Lock Nut
Spacer
Hex Bolt
Handle Panel
“Z” Fitting
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
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.
Figure 7
8
• 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 10.
Auger
Drive
Clutch
Flat
Washer
Shift Lever
Ferrule
Traction
Drive
Clutch
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, thread hex nuts onto the “Z” fittings and insert “Z” fitting into hole in clutch grips. See Figure 11.
• 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 cable onto the threaded portion of the Z fitting until the rubber bumper (located on the underside of the clutch lever) only lightly contacts the upper handle.
IMPORTANT:
The cable should have very little slack, but should NOT be tight. An overtightened cable may prohibit the auger and drive from disengaging.
WARNING:
Over-tightening the cable may prohibit the auger and drive from disengaging and compromise the safety of the snow thrower. Do NOT overtighten the cable.
• Once properly adjusted, tighten the jam nut against the coupling end of the cable to lock it in position.
NOTE:
Refer to
Auger Control Test
in the Operation
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, tighten all nuts and bolts securely. Do not overtighten.
Chute Assembly
Hex Bolt
Cable Should
Be Straight
Z Fitting
Hex Nut
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.
9
Attaching The Chute Directional Control
(Hardware C)
• Thread one hex nut about halfway onto eye bolt on the chute directional control.
• Insert eye bolt through the hole provided 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
Hex Nut
Cupped
Washer
Hairpin
Clip
Chute
Directional
Control
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 assembly.
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 Figure 14.
• Adjust the chute bracket so that the spiral on the chute directional control fully engages the teeth on the chute assembly.
• Tighten nuts on the lower chute bracket securely.
• Tighten hex nut on the eye bolt on chute directional control.
Flat
Washer
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 from the lamp down the right handle until the wire can be plugged into the alternator lead wire located under the fuel tank.
See Figure 15. Lamp wire must not interfere with any controls or cables.
Lower Handle
Alternator
Lead
Lamp
Wire
Figure 15
10
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
664G
Electric Light Kit
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
Traction
Drive Clutch
Shift
Lever
Auger
Drive Clutch
Clean-out
Tool
Discharge
Chute
Gas Cap
Oil Fill
Chute Directional
Control
Primer
Choke
Recoil
Starter
Handle
Closed
Skid Shoe
Model 664 Shown
Ignition
Key
Throttle
Control
Auger
Open
Fuel Shut-Off Valve
WARNING:
Read, understand, and follow all instructions and warnings on the machine and in this manual before operating.
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.
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.
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:
11
• 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 tool. 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 the ignition key when the snow thrower is not in use. See Figure 16.
IMPORTANT:
Do NOT “turn” the ignition key in an attempt to start the engine. Doing so may cause it to break.
Fuel Shut-off Valve
(Optional Equipment)
On models so equipped, the fuel shut-off valve, located under fuel tank, controls fuel-flow from the 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. It 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 while 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:
Engine will not start unless ignition key is inserted into ignition slot in carburetor cover.
Electric Starter
(If Equipped)
• Determine that your house wiring is a three-wire grounded system. Ask a licensed electrician if you are not certain.
•
If your house wiring system is not a three-wire
grounded system, do not use this electric starter
under any conditions.
12
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 short shutdown.
• Push starter button to start engine.
• When engine starts, release starter button 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 first 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 engine, 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 rope 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 snow, squeeze the auger control grip against the left handle. Release to stop the augers.
Auger Control Test
IMPORTANT:
Perform the following test before operating your snow thrower for the first time and at the start of each winter season.
13
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 before releasing the auger control. Repeat this several times.
• With the engine running in the FAST position and the auger control lever in the disengaged “up” position, walk to the front of the machine.
• Confirm that the auger has completely stopped rotating and shows NO signs of motion.
IMPORTANT:
If the auger shows ANY signs of rotating, 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.
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 ignition 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 carriage 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.
Drift
Cutter
Z Fitting
Hex Nut
Carriage Screws /
Hex Nuts
Cable Should
Be Straight
Figure 17
Chute Clean-Out Tool
The chute clean-out tool is conveniently fastened to the rear of the auger housing with a mounting 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 Lock Lever
.
• Stop the engine by removing the ignition key.
• Remove the clean-out tool from the clip which secures it to the rear of the auger housing.
• Use the shovel-shaped end of the clean-out tool to dislodge and scoop any snow and ice which has formed in and near the discharge chute.
14
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.
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.
• 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.
SECTION 6: MAKING ADJUSTMENTS
WARNING:
Never attempt to make any adjustments while the engine is running, except where specified in operator’s manual.
• Tip the snow thrower so that it rests on the auger 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.
Tire Pressure
(Pneumatic Tires)
• The tires are overinflated for shipping purposes.
Before operating check tire pressure and reduce pressure to between 15psi and 20 psi.
NOTE:
If the tire pressure is not equal in both tires, the unit may pull to one side or the other.
Frame Cover
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. With the traction control lever released, push the snow thrower forward. The unit should roll forward. Then engage the traction control grip. The wheels should stop turning.
• Now release the traction control grip and push the unit again.
• Move the shift lever back to the fast reverse position then all the way forward again. There should be no resistance in the shift lever, and the wheels should keep turning.
• If you have resistance when moving the shift lever or the wheels stop when 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 engage 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.
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:
Auger
Housing
Figure 19
15
• With the traction control is engaged, the friction wheel must contact the drive plate. See Figure 20.
Friction
Wheel
• Use a middle or lower position when the area to be cleared is uneven.
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 either side of the discharge chute. Pivot the chute upward or downward before re-tightening the wing knobs.
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 ground can be adjusted. See Figure 21.
• For close snow removal on a smooth surface, raise skid shoes higher on the auger housing.
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 securely.
Carburetor
• Minor carburetor adjustment may be required to compensate for differences in fuel, temperature, altitude and load.
• Refer to the separate engine manual, packed with your unit, for carburetor adjustment information.
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 from the ferrule and remove the ferrule from the shift lever.
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.
16
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
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:
NEVER operate the snow thrower with the 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.
Click Pin In
Outside Hole
Figure 22
SECTION 7: MAINTAINING YOUR SNOW THROWER
WARNING:
Before lubricating, repairing, 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.
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.
Click Pin
Lubrication
Engine
Refer to the separate engine manual packed with your unit for all engine lubrication instructions.
WARNING:
If any adjustments need to be made to the engine while the engine is running (e.g. carburetor), keep clear of all 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 season or after every 25 hours of operation.
IMPORTANT:
Keep all grease and oil off the friction wheel and drive plate.
Axle
Figure 23
Chute Directional Control
• The worm gear on the chute directional control should be greased with multipurpose automotive grease.
17
Auger Shaft
• At least once a season, remove shear bolts on auger shaft. Oil or spray lubricant inside shaft and lubricate the auger bearings. See Figure 24.
Vent Plug
Chain Shift Lever
Gear Shaft
Avoid oil on friction wheel and drive plate
Plastic
Bearing
Plastic
Bearing
Shear Bolts
Figure 24
Drive and Shifting Mechanism
Remove rear cover. Oil any chains, sprockets, gears, bearings, shafts, and shifting mechanism at least once a season. Use engine oil or a spray lubricant. Avoid getting oil on rubber friction wheel and aluminum drive plate. See Figure 25.
Figure 25
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:
Do not overfill the gear case. Damage to 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 servicing, repairing, 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
• 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 bolts are to the inside of housing. Tighten securely.
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
18
Augers
• The augers are secured to the spiral shaft with 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. If changing just one belt, be certain to check the condition of the other belt.
• Remove the plastic belt cover on the front of the engine by removing the two self-tapping screws.
See Figure 27.
• Drain the gasoline from the snow thrower, or place a piece of plastic under the gas cap.
• Tip the snow thrower up and forward so that it rests on the auger housing.
• Roll the front and rear auger belts off the engine pulley. See Figure 28.
Drive Belt
Auger
Belt
Drive
Pulley
Idler
Pulley
Engine
Pulley
Idler
Pulley
Figure 28
• Unhook the idler spring from the hex bolt on the auger housing. See Figure 29.
Pin
Friction Wheel
Assembly
Support
Bracket
Frame
Self-Tapping
Screw
Auger Belt
Gear
Shaft
Belt Cover
Figure 27
• Remove six self-tapping screws from the frame cover underneath the snow thrower.
Auger
Pulley
Idler
Spring
Auger
Housing
Figure 29
Support Bracket
Spring
• 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 auger pulley. Repeat this step to remove the front auger belt. See Figure 29.
• Reassemble auger drive belt(s) by following instructions in reverse order.
19
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 until 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 bracket must rest on the stop bolt 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 shaft.
• Slide the gear shaft to the right then slide the friction wheel assembly from the shaft.
• Remove the four screws from the friction wheel assembly. See Figure 32.
• Remove the friction wheel rubber from between the friction wheel plate.
• Reassemble new friction wheel rubber to the friction wheel assembly, tightening the four screws in rotation and with equal force. See Figure 32.
Screws
Friction Wheel Rubber
Hub
Support Bracket
Friction Wheel
Plates
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.
Figure 31
Hex Nut &
Bell Washer
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 to prevent gum deposits from forming on these parts and causing possible malfunction of engine.
20
• 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 minimizing the formation of fuel gum deposits 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 should 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).
Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used.
Engine runs erratic
Loss of power
Engine overheats
Excessive vibration
Unit running on CHOKE.
Blocked fuel line or stale fuel.
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.
Water or dirt in fuel system.
Carburetor out of adjustment.
Spark plug wire loose.
Gas cap vent hole plugged.
Exhaust port plugged.
Carburetor not adjusted properly.
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.
Incorrect fuel mixture.
Drain fuel tank. Refill with proper fuel mixture.
Loose parts or damaged auger.
Stop engine immediately and disconnect spark plug wire. Tighten all bolts and nuts. Make all necessary repairs. If vibration continues, have unit serviced by an authorized service dealer.
Adjust drive cable.
Unit fails to propel itself Incorrect adjustment of drive cable.
Unit fails to discharge snow
Drive belt loose or damaged.
Discharge chute clogged.
Foreign object lodged in auger.
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
Incorrect adjustment of drive cable.
Drive belt loose or damaged.
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.
object from auger.
Adjust drive cable.
Replace drive belt.
NOTE:
For repairs beyond the minor adjustments above, contact your local authorized service dealer.
21
SECTION 10: MODELS 614E, 644E, & 664G
40
39
21
10
11
12
8
18
7
13
16
6
33
29
30
31
32
34
33
37
28
36
32
26
13
13
23
22
35
32
27
33
37
6
7
33
31
30
6
25
36
32
7
6
1
5
38
2
3
4
14
20
8
15
19
24
6
16
18
7
17
16
22
Models 614E, 644E, & 664G
REF.
NO.
PART
NO.
1.
712-0116
2.
756-0178
3.
784-5632B
4.
710-0459A
5.
741-0475
6.
736-0242
7.
712-3010
8.
712-3027
10.
705-5226
11.
731-1379C
12.
710-0703
13.
710-0451
14.
738-0281
15.
736-0167
16.
712-3010
17.
732-0611
18.
736-0119
19.
05931A
20.
741-0309
21.
684-0039D
684-0041D
22.
736-0169
DESCRIPTION
Lock Jam Nut 3/8-24
Flat Idler
Auger Idler Arm
Hex Cap Screw 3/8-24 x 1.50
Bushing
Bell Washer
Hex Nut 5/16-18
Hex Lock Nut 1/4-20
Reinforcement Chute
Chute Adapter
Carriage Screw 1/4-20 x.62
Carriage Bolt 5/16-18
Shoulder Screw
Flat Washer
Hex Nut 5/16-18
Extension Spring
Lock Washer 5/16
Bearing Housing
Ball Bearing
24” Housing Assembly
28” Housing Assembly
Lock Washer 3/8
REF.
NO.
PART
NO.
23.
712-0798
24.
784-5580
25.
784-5581A
784-5582A
26.
684-0065
27.
715-0114
28.
618-0120A
618-0122A
29.
710-0726
30.
784-5618
31.
741-0245
32.
736-0188
33.
741-0493A
34.
605-5188A
605-5196A
35.
605-5189A
605-5197A
36.
710-0890A
37.
712-0429
38.
784-5647
39.
731-2635
40.
731-2643
DESCRIPTION
Hex Nut 3/8-16
Slide Shoe
24” Shave Plate
28” Shave Plate
Impeller Assembly
Pin
24” Gear Assembly
28” Gear Assembly
Hex Washer Screw 5/16-12
Bearing Housing
Hex Flange Bearing
Flat Washer
Flange Bushing
Spiral 24” RH
Spiral 28” RH
Spiral 24” LH
Spiral 28” LH
Shear Bolt 5/16-18 x 1.5
Lock Nut 5/16-18
Chute Directional Control Bracket
Clean-Out Tool Mount
Clean-Out Tool
23
Models 614E, 644E, & 664G
18
27
19
26
25
28
29
38
42
39
43
41
45
39
54
40
17
20
53
22
20
54
16
18
19
21
17
16
9
10
12
8
1
2 3
4
5
55
56 7
30
13
24
15
24
53
55
14
7
6
7
44
37
36
46
34
23
23
35
22*
64†
27*
65†
16
47††
60†
62†
42
57†
59†
51††
50††
52††
49††
48††
24
63†
58†
23
61†
36
†Models w/Folding Handles
*Ref. Nos. 22 and 27 reversed for fold down handles.
Models 614E, 644E, & 664G
REF.
NO.
PART
NO.
1.
712-0116
2.
732-0193
3.
736-0105
4.
784-5619A
5.
710-0459A
6.
710-0788
7.
714-0104
8.
720-0232
720-04030
9.
711-0677
10.
726-0100
12.
720-0201A
720-04031
13.
684-0022
DESCRIPTION
Jam Lock Nut 3/8-24
Compression Spring
Bell Washer
Shift Handle
Hex Cap Screw 3/8-24
Tap Screw 1/4-20
Cotter Pin
Shift Knob - Black
Shift Knob - Yellow
Ferrule
Push Cap
Crank Knob - Black
Crank Knob - Yellow
Chute Crank Assembly
14.
747-0697
735-0234
15.
684-0008A
16.
720-0274
Eyebolt
Grommet only
Shift Arm Assy
Grip
17.
705-5233A Clutch Lever Assy LH - Black
684-04054 Clutch Lever Assy LH - Yellow
705-5234A
684-04053
Clutch Lever Assy RH - Black
Clutch Lever Assy RH - Yellow
18.
750-1032
19.
735-0199A
20.
746-0778
21.
705-5275
22.
712-0429
23.
736-0119
24.
712-3010
25.
705-5274
Spacer
Rubber Bumper
Z Cable Fitting
Lever Bracket LH
Lock Hex Nut 5/16-18
Lock Washer 5/16
Hex Nut 5/16-18
Lever Bracket RH
26.
749-0910C Handle RH
27.
710-3103 Hex Cap Screw 5/16-18 x 2.0
28.
710-0262
29.
684-0106
Carriage Bolt 5/16-18 x 1.50
Control Panel Assy
REF.
NO.
PART
NO.
DESCRIPTION
30.
749-0911C Handle LH
34.
784-5599 Handle Tab
35.
710-04039
36.
710-1880
Hex Cap Screw 5/16-18 x 2.0
Hex Cap Screw 5/16-18 x.75
37.
736-0185
38.
731-04426
39.
736-0159
40.
710-0451
Flat Washer
Upper Chute
5/16 Washer
Carriage Bolt 5/16-18 x.75
41.
710-04071
42.
720-0284
Carriage Screw 5/16-18 x 1.0
Knob - Black
720-04032 Knob - Yellow
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
55.
736-0275
Hex Patch Nut 5/16-18
Flat Washer.344 ID x.688 OD
56.
747-0921 Shift Rod
57.
747-0620A† Upper Shift Rod
58.
747-0621†
59.
750-0963†
Lower Shift Rod
Clutch Rod Connector
60.
710-0449†
61.
710-0643†
62.
736-0451†
63.
749-0951†
Carriage Screw 5/16-18
Hex Cap Screw 5/16-18
Saddle Washer.320 ID x.93 OD
Lower Handle
64.
749-0952A† Upper Handle RH
65.
749-0953A† Upper Handle LH
† Models w/Fold Down Handles Only
†† If Equipped
25
Models 614E, 644E, & 664G
20
39
46
37
38
32
33
34
27
40
31
28
8
26
35
13
7
11
10
14
36
15
16
47
42
6
5
4
Drive Clutch
Cable
2
1
3
Auger Clutch
Cable
4
1
29
24
22
21
25
23
43
20
44
18
17
8
1
4
5
42
16” Wheels
42
7
13” or 15” Wheels
9
10
11
12
41
19
5
Auger Clutch
Cable
45
Blower
Housing
30
41
41
26
Models 614E, 644E, & 664G
REF.
NO.
PART
NO.
1.
710-0599
2.
784-5688
3.
784-5687A
4.
756-0625
5.
738-0924
6.
784-5630B
7.
741-0563
8.
736-0105
9.
712-0116
10.
741-4026
11.
736-0188
12.
784-5689A
13.
710-0538
14.
736-0242
15.
714-0474
16.
736-0160
17.
710-0809
18.
784-5590
19.
784-5638A
20.
710-1652
21.
736-0351
22.
717-1445
23.
714-0126
24.
717-04094
DESCRIPTION
Hex Screw
Drive Cable Guide Bracket
Auger Clutch Cable Bracket
Roller Cable
Hex Screw 1/4-28
Frame Assembly
Ball Bearing
Bell Washer
Lock Jam Nut
Hex Flange Bearing
Flat Washer
Front Support Guide Bracket
Lock Hex Screw
Bell Washer.340 ID x.872 OD
Cotter Pin
Flat Washer.536 ID x.930 OD
Hex Washer Screw 1/4-20
Frame Shift Bracket
Frame Cover
Hex Washer Screw 1/4-20
Flat Washer.760 ID x.50 OD
Gear
Key
7-Tooth Shaft
REF.
NO.
PART
NO.
25.
715-0249
26.
714-0143
27.
684-0042C
28.
656-0012A
29.
684-0013B
30.
746-0897
31.
748-0190
32.
684-0021
33.
732-0264
34.
712-0711
35.
746-0898B
36.
738-0869
738-0830
37.
790-00010
38.
735-0243B
39.
718-0301A
40.
618-0063A
41.
710-1652
42.
712-0703A
43.
711-1364
44.
736-0142
45.
714-0507
46.
790-00011
47.
716-0102
DESCRIPTION
Roll Pin
Klik Pin
Friction Wheel Assembly
Friction Disc Wheel
Wheel Shift Rod Assembly
Drive Cable
Spacer
Friction Wheel Bracket Assembly
Extension Spring
Jam Nut 3/8-24
Drive Cable
Axle 13” Wheels
Axle 16” Wheels
Friction Plate
Friction Wheel Rubber
Friction Wheel Hub
Friction Wheel Bearing
Tap Screw 1/4-20
Insert Nut 5/16-18
Clevis Pin
Flat Washer.281 ID x.50 OD
Cotter Pin
Friction Plate
Snap Ring
27
Models
614E
2
1
3
13
12
11
10
9
8
22
16
20
16 15
4
4
7
6
5
REF.
PART
NO.
NO.
1.
710-1652
2.
731-1324
3.
732-0339
4.
710-0627
5.
710-3005
6.
05896A
7.
748-0234
8.
756-0985
9.
754-0343
10.
756-0984
11.
736-0270
12.
710-0230
13.
756-0313
24
23
25
19
21
18
17
14
26
DESCRIPTION
Hex Washer Screw 1/4-20 x.5
Belt Cover
Extension Spring
Hex Screw 5/16-24 x.75
Hex Cap Screw 3/8-16 x 1.25
Drive Clutch Bracket
Shoulder Spacer
Pulley Half
V-Belt
Pulley Half
Bell Washer
Hex Cap Screw 1/4-28 x.50
Flat Idler
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.
PART
NO.
14.
710-1245B
15.
712-0181
16.
756-0569
17.
736-0242
18.
736-0505
19.
736-0507
20.
754-0430B
21.
756-0967
22.
736-0247
23.
736-0331
24.
710-0696
25.
748-0360
26.
710-0654A
DESCRIPTION
Lock Cap Screw 5/16-24
Lock Jam Nut 3/8-16
Pulley Half
Bell Washer
Flat Washer
Washer
Belt
Auger Pulley
Flat Washer
Bell Washer
Hex Cap Screw 3/8-24
Pulley
Hex Washer Screw 3/8-16 x 1.0
28
Models 644E & 664G
1
2
26
27
20
21
20
10
9
8
5
12
11
4
3
20
22
23
24
21
14
13
5
7
6
25
REF.
PART
NO.
NO.
1.
710-1652
2.
731-1324
3.
710-3005
4.
732-0710
5.
710-0627
6.
05896A
7.
748-0234
8.
756-0987
9.
754-0346
10.
756-0986
11.
736-0270
12.
710-0230
13.
756-0313
14.
712-0181
19
18
17
16
15
19
DESCRIPTION
Hex Washer Screw 1/4-20 x.50
Belt Cover
Hex Cap Screw 3/8-16 x 1.25
Extension Spring
Hex Screw 5/16-24 x.75
Drive Clutch Idler Bracket
Shoulder Spacer
Pulley Half
Belt
Pulley Half
Bell Washer
Hex Cap Screw
Flat Idler
Lock Jam Nut 3/8-16
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.
PART
NO.
15.
710-0654A
16.
710-1245B
17.
736-0242
18.
736-0505
19.
756-0967
20.
21.
22.
23.
756-0569
754-0430B
736-0247
736-0331
DESCRIPTION
Hex Washer Screw 3/8-16 x 1.0
Hex Lock Screw 5/16-24 x.875
Bell Washer.340 ID x.872 OD
Flat Washer.341 ID x.50 OD
Auger Pulley
Pulley Half
V-Belt
Flat Washer
Bell Washer.39 ID x 1.13 OD
24.
710-0696
25.
748-0360
Hex Cap Screw 3/8-24 x.875
Pulley Adapter
26.
OEM-390-987 Electric Start
27.
629-0071 Extension Cord, Three-Prong
29
Models 614E, 644E, & 664G
4
1
12
16
13
9
11
17
5
6
14
15
7
10
8
2
3
REF.
NO.
PART
NO.
1.
618-0123
2.
618-0124
3.
710-0642
4.
711-0908A
711-0910A
5.
714-0161
6.
715-0143
7.
717-0526
8.
717-0528
9.
718-0186
DESCRIPTION
Housing—R.H.
Housing—L.H.
Hex Screw 1/4-20 x.75
Spiral Axle 24"
Spiral Axle 28"
Key
Spiral Pin
Worm Shaft
Worm Gear
Thrust Collar
3
REF.
NO.
PART
NO.
10.
721-0325
11.
721-0327
12.
736-0351
13.
736-0369
14.
736-0445
15.
741-0662
16.
741-0663
17.
618-0120A
618-0122A
1
DESCRIPTION
Plug
Oil Seal
Flat Washer
Flat Washer
Flat Washer
Flange Bearing
Flange Bearing
Ass’y. Complete 24"
Ass’y. Complete 28"
6
5
5
2
4
SIZE
13 x 4
13 x 5
16.5 x 4.8
3
Wheel Assembly
REF. NO. 1
WHEEL ASS’Y
REF. NO. 2
TIRE
REF. NO. 3
AIR
REF. NO. 4
RIM
COMPLETE
634-0114A
734-1714A
734-1709A
ONLY
734-1732
734-1527
734-1530
VALVE
734-0255
734-0255
734-0255
ONLY
734-1713A
734-1713A
734-1708A
REF. NO. 5
SLEEVE
BEARING (2)
741-0401
741-0401
741-0401
REF. NO. 6
SPACER
731-04044
731-04044
731-04043
30
NOTES
31
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 LLC warrants this product against defects 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 accessory or attachment not approved by MTD LLC 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, 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, 1-800-800-7310, 1-330-220-
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 carry a separate manufacturer’s warranty. Refer to the 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 LLC does not extend any warranty for products sold or exported outside of the United States, its possessions and territories, except those sold through MTD
LLC’s authorized channels of export distribution.
e.
Parts that are not genuine MTD parts are not covered by this warranty.
f.
Service completed by someone other than an authorized service dealer is not covered by this warranty.
g.
Transportation charges and service calls are not covered.
No implied warranty, including any implied warranty 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 LLC. 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
LLC 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 greater 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.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 1-800-800-7310
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