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664G
User Manual
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MTD 644E, 664G User Manual

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-
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A.
FORM NO.
770-10045H.fm (6/2003)
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 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
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.
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.
3
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.
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.)
ATTACHING THE HANDLES
A
Hex Bolts 710-04039 (2)
Hex Bolts 710-1880 (2)
ATTACHING CHUTE DIRECTIONAL CONTROL
C
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
B
ATTACHING CLUTCH CABLES AND SHIFT ROD
D
(Z Fittings might be already attached to cables)
Ferrule 711-0677
E
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)
F
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
G
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.
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.
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
A
Z Cable Fitting 746-0778 (2)
REPLACEMENT SHEAR BOLTS
B
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.
6
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.
7
Carriage
Bolts
Left Handle (Curves in)
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 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.
8
• 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.
9
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.
10
Lamp
Wire
Figure 15
Lower Handle
Alternator Lead
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