MTD 642E, 642F, 662E, 664F, 6A4E Operator's Manual

OPERATOR’S MANUAL

SNOW THROWER

Models

642E, 642F, 662E, 614E,

644E, 664F, & 6A4E

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

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

covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

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

PRINTED IN U.S.A.

Model 664 Shown

FORM NO.

770-10045F.fm
(6/2002)

TABLE OF CONTENTS

Content Page

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

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

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

Know Your Snow Thrower..................................................................................10

Operating Your Snow Thrower...........................................................................11

Making Adjustments...........................................................................................14

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

Service ...............................................................................................................17

Troubleshooting .................................................................................................20

Parts List ............................................................................................................20

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
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-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.

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.

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 chains, cabs etc.).

20. If situations occur which are not covered in this manual,
use care and good judgment. Contact your dealer or
telephone [phone] 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

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
710-3259 (2)

Hex Bolts
710-1880 (2)

ATTACHING CHUTE DIRECTIONAL CONTROL

C

Cupped Washer
736-0242

Flat Washers
736-0185 (2)

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)

Lock Washers
736-0119 (4)

Z Fitting
746-0778 (2)

Hairpin Clips
714-0104 (2)

ATTACHING THE CLUTCH GRIPS

Hex Nuts
712-0121 (2)

Flat Washers
7736-0275 (2)

F

Hairpin Clip
714-0104

ATTACHING CHUTE ASSEMBLY

Hex Bolts
710-3015 (2)

Hex Lock Nuts
712-3027 (6)

Chute Flange Keepers
731-0851 (3) Not Shown

G

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)

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.

Unpacking

• 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 In Carton

Handle Panel

Auger Control

Traction Control

Handle Panel

Left Bracket

Carriage

Bolts

Left Handle
(Curves in)

• 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 3.

Auger Control

Hex
Patch Nuts

Lock Washers

Figure 2

Triangle
Metal Tab

Right Clutch
Bracket

Left Clutch
Bracket

Left Handle

Right Handle

Figure 1

Before Assembly

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, lock 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 2.

“Z” Fitting

Triangle
Metal Tab

Figure 3

• Place the auger control on top of the left handle.
The triangular metal tab must be between the
handle and the bracket. See Figure 3.

• 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 4.

6

Auger Control

2” Hex Bolt

Left
Handle

Spacer

Hex Bolt

Handle Panel

Left Bracket

Hex Lock Nut

“Z” Fitting

Figure 4

• Repeat process for the right side Traction Control.

• Lay handle assembly behind snow thrower.

See Figure 5.

• 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 5.

• Repeat process on the other side.

Saddle

Cable Roller
Guide

Lock
Washers

3/4” Hex
Bolt

Figure 6

Attaching Shift Rod (Hardware D)

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

• Models 602, 642, and 662: Rotate the shift arm
assembly counter clockwise, as far as it will go.
Insert the shift rod through the shift arm assembly.
When installed the shift arm assembly should point
to the right. Secure with flat washer and hairpin clip.
See Figure 7.

• Models 602, 642, and 662: Thread the ferrule up
or down the shift rod and align with the lower hole
on the shift lever assembly behind the handle
panel. See Figure 7.

Shift
Lever

Hairpin
Clip

Traction
Drive Clutch

Handle Panel &
Handles

Hex Bolt &

Lock Washer

Figure 5

• 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 6.

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

Auger
Drive Clutch

Ferrule
(Bottom Hole)

Shift Rod

Flat
Washer

Shift Arm
Assembly

Models 602, 642 and 662

Flat Washer

Hairpin
Clip

Figure 7

• Models 614, 644, 664 and 6A4: Rotate the shift

arm assembly counter clockwise as far as it will go.
Insert the shift rod through the shift arm assembly.
When installed, the shift arm assembly should point
left. Secure with flat washer and hairpin clip.
See Figure 8.

7

• Models 614, 644, 664, and 6A4: Thread the ferrule
onto the shift rod, up or down the shift rod and align
with the far hole on the narrow side of the shift lever
assembly behind the handle panel. See Figure 8.

Auger
Drive
Clutch

Hairpin
Clip

Models 614, 644, 664 and 6A4

Flat
Washer

Shift Rod

Shift Arm
Assembly

Shift Lever

Ferrule

Flat
Washer

Traction
Drive
Clutch

Hairpin
Clip

Figure 8

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

Attaching Clutch Cables (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 9.

• Route the left cable between engine and speed
selector plate and then between handle panel and
clutch lever pivot rod before threading onto the left

“Z” fitting.

• Assemble the right cable in the same manner.

• Both cables should have minimal slack, but not

tight.

• If Z fittings are already attached, thread the jam

nuts all the way up each of the Z fittings, toward the
handle panel.

• 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 6.

• 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 10.

• 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

Figure 9

Z

Hex Nut

Hex Lock Nut

Chute Flange
Keeper

Figure 10

8

NOTE: Lock nuts cannot be threaded onto a bolt by

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

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 11.

• 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 11

• 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 12.

• Place one flat washer on the end of the chute
directional control, then insert the end of the control
into the hole in the plastic bushing in the lower
chute bracket.

• Place another flat washer on the end of the chute
directional control, and insert hairpin clip into hole in
the end of control. See Figure 12.

• 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.

Hairpin
Clip

Flat
Washers

Chute
Directional
Control

Lower Chute
Bracket

Figure 12

Lamp Wiring (If Equipped)

If for shipping purposes, the headlight wire was left
unattached to the alternator lead, follow the steps
below to attach it now:

• Unwrap the headlight wire which is attached to the
headlight beneath the handle panel. Wind the
headlight wire around the right handle until excess
slack is removed. See Figure 13.

Lower Handle

Alternator
Lead

Lamp

Wire

Figure 13

• Plug the wire from the headlight into the alternator
lead coming from the right side of the engine,
underneath the fuel tank.

9

SECTION 4: KNOW YOUR SNOW THROWER

WARNING: Read, understand, and

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

Shift Lever

The shift lever is located in the center of the handle
panel. The shift lever may be moved into one of six
positions. Run engine with throttle in the fast positions
Run engine with throttle in the fast position. Use the
shift lever to determine ground speed. See Figure 14.

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.

NOTE: Model 614, 644, 664, and 6A4 has five

forward positions and two reverse.

Auger Drive Control

The auger drive control is located on the left handle.
Squeeze the control grip to engage the augers.
Release to stop the snow throwing action.

Traction Control

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

Chute Directional Control

The chute directional control is located on left side of
the snow thrower. See Figure 14.

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

• 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 14.

Discharge
Chute

Auger

Traction
Drive Clutch

Gas Cap

Oil Fill

Shift
Lever

Shift Lever

Model 664 Shown

Auger
Drive Clutch

Chute Directional
Control

Choke

Ignition
Key

Throttle

Control

Clean-out

Too l

Primer

Rope
Start
Handle

Figure 14

10

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 14.

IMPORTANT:

Do NOT attempt to turn the key.

condition of the ground from where snow has to be
removed. See Figure 14.

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 14

Skid Shoe

The position of the skid shoe is determined by the

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

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

Do not turn key

NOTE:

inserted into ignition slot in carburetor cover.

Engine will not start unless ignition key is

.

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.

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.

• Rotate choke knob to OFF position and do not
prime engine.

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

• Push starter button to crank engine. As you crank
the engine, move choke knob to FULL choke
position.

• 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. If engine is warm, push primer button
only once.

NOTE: Always cover vent hole in primer button when

11

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

• NEVER move shift lever without releasing drive
clutch.

• 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 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:

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

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:

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 15.

• Repeat Auger Control Test to verify proper

adjustment has been achieved.

Perform the following test before

If the auger shows ANY signs of rotating,

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.

Z

Hex Nut

Cable Should
Be Straight

Figure 15

12

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.

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 16.

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.

Drift

Cutter

Carriage Screws /

Hex Nuts

Figure 16

13

SECTION 6: MAKING ADJUSTMENTS

WARNING: Never attempt to make any

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

Tire Pressure (Pneumatic Tires)

• The tires are overinflated for 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.

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.

Frame Cover

Auger
Housing

Figure 17

• With the traction control is engaged, the friction
wheel must contact the drive plate. See Figure 18.

Friction
Wheel

Gear Shaft

Drive
Plate

Gap

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:

• Tip the snow thrower so that it rests on the auger
housing. See Figure 17.

• 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.

Figure 18

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.

14

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 19.

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

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

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.

Models 602, 642, 662

• Push up on the shift arm assembly as far as it will
go. Thread the ferrule up or down the shift rod and
align with the lower hole on the wider side of the
shift lever assembly behind the handle panel.
Secure the ferrule to the shift arm assembly again
with the hardware earlier removed.
Refer to Figure 7.

Models 614, 644, 664, and 6A4

• 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 8.

Carriage
Bolts

Hex Nuts

Skid
Shoes

Figure 19

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.

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 20.

One Wheel Driving

• On the right side of the unit, place klick 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.

Inside Hole
In Axle

Click Pin In
Outside Hole

Figure 20

15

Both Wheels Driving

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

IMPORTANT:

click pin inserted through both the RIM and the
OUTSIDE HOLE in the axle. Doing so can result in
serious damage to the drive system.

NEVER operate the snow thrower with the

SECTION 7: MAINTAINING YOUR SNOW THROWER

WARNING: Before lubricating, repair-

ing, or inspecting, disengage all clutch
levers and stop engine. Wait until all mov­ing parts have come to a complete stop.
Disconnect spark plug wire and ground it
against the engine to prevent unintended
starting.

Lubrication

Engine

Refer to the separate engine 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:

wheel and drive plate.

Wheels

• Oil or spray lubricant into bearings at wheels at
least once a season. Pull klick pin, remove wheels,
clean and coat axles with a multipurpose
automotive grease. See Figure 21.

Keep all grease and oil off the friction

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 22.

Vent Plug

Plastic
Bearing

Shear Bolts

Figure 22

Plastic
Bearing

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 23.

Chain

Shift Lever

Axle

Figure 21

Chute Directional Control

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

Klick Pin

Gear Shaft

Figure 23

Avoid oil on
friction wheel and
drive plate

Gear Case

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

IMPORTANT:

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

16

Do not overfill the gear case. Damage to

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

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 24.

• 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.

• 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:

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.

NEVER replace the auger shear bolts with

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 25.

• Drain the gasoline from the snow thrower, or place
a piece of plastic under the gas cap.

• Tip the snow thrower up and forward so that it rests
on the auger housing.

Self-Tapping
Screw

Skid Shoe

Carriage
Bolts

Shave Plate

Skid Shoe

Figure 24

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 22.

Hex Nuts

Belt Cover

Figure 25

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

• Roll the front and rear auger belts off the engine
pulley. See Figure 26.

• Unhook the idler spring from the hex bolt on the
auger housing. See Figure 27.

• 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 26.

17

Idler
Pulley

Auger
Belt

Engine
Pulley

Idler
Pulley

Drive Belt

Drive
Pulley

Friction
Wheel Disc

Friction Wheel

Drive Belt

Support Bracket

Stop
Bolt

Figure 28

Figure 26

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

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 26.

Friction Wheel
Assembly

Pin

Support
Bracket

Auger Belt

Frame

Gear
Shaft

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 17.

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

• Remove the klick 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 29.

Hex Nut &
Bell Washer

Auger

Pulley

Idler
Spring

Auger
Housing

Figure 27

• Using a wrench, loosen the nut on the stop bolt until
the support bracket rests on the auger pulley.
See Figure 28.

• 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 28.

Support Bracket
Spring

Figure 29

• 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 30.

• Remove the friction wheel rubber from between the
friction wheel plate.

• Reassemble new friction wheel rubber to the
friction wheel assembly, tightening the six screws in
rotation and with equal force. See Figure 30.

18

Screws

Friction Wheel Rubber

Hub

Friction Wheel
Plates

Figure 30

• 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 27.

• 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.

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.

• 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 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.

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.

19

SECTION 9: TROUBLE SHOOTING GUIDE

Trouble Possible Cause(s) Corrective Action

Engine fails to start Fuel tank empty, or stale fuel.

Blocked fuel line.
Choke not in ON position
Faulty spark plug.
Key not in switch on engine.
Spark plug wire disconnected.
Primer button not depressed.
Fuel shut-off valve closed
(if so equipped).

Engine runs erratic Unit running on CHOKE.

Blocked fuel line or stale fuel.

Water or dirt in fuel system.
Carburetor out of adjustment.

Loss of power Spark plug wire loose.

Gas cap vent hole plugged.
Exhaust port plugged.

Engine overheats Carburetor not adjusted

properly.
Incorrect fuel mixture.

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

Unit fails to propel itself Incorrect adjustment of drive

cable.

Drive belt loose or damaged.
Unit fails to
discharge snow

Discharge chute clogged.

Foreign object lodged in auger.

Incorrect adjustment of drive

cable.

Drive belt loose or damaged.

Fill tank with clean, fresh gasoline. Fuel will not last over thirty days
unless a fuel stabilizer is used.
Clean fuel line.
Move switch to ON position
Clean, adjust gap or replace.
Insert key.
Connect spark plug wire.
Refer to the engine manual.
Open fuel shut-off valve.

Move choke lever to OFF position.
Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last
over thirty days unless a fuel stabilizer is used.
Drain fuel tank. Refill with fresh fuel.
Refer to the engine manual.
Connect and tighten spark plug wire.
Remove ice and snow from cap. Be certain vent hole is clear.
Clean following the engine manual.
Refer to the engine manual packed with your unit or have
carburetor adjusted by an authorized service dealer.
Drain fuel tank. Refill with proper fuel mixture.

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

Replace drive belt.
Stop engine immediately and disconnect spark plug wire. Clean
discharge chute and inside of auger housing.
Stop engine immediately and disconnect spark plug wire. Remove
object from auger.
Adjust drive cable.

Replace drive belt.

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

20

Notes

21

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

40

39

21

11

10

12

8

9

7

6

5

38

2

3

4

9

1

14

33

29

36

30

31

32

32

34

33

37

28

35

26

32

16

13

27

33

13

7

6

6

37

18

23

13

7

33

31

22

25

30

6

20

19

8

24

16

15

16

17

7

18

6

36

32

22

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

REF.

NO.

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

2. 756-0178 Flat Idler

3. 784-5632B Auger Idler Arm

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

5. 741-0475 Bushing

6. 736-0242 Bell Washer

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

8. 712-0324 Hex Lock Nut 1/4-20

9. 736-0463 Flat Washer

10. 705-5226 Reinforcement Chute

11. 731-1379C Chute Adapter

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

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

14. 738-0281 Shoulder Screw

15. 736-0167 Flat Washer

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

17. 732-0611 Extension Spring

18. 736-0119 Lock Washer 5/16

19. 05931A Bearing Housing

20. 741-0309 Ball Bearing

21. 684-0039D 24” Housing Assembly

22. 736-0169 Lock Washer 3/8

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

24. 784-5580 Slide Shoe

25. 784-5581A 24” Shave Plate

PA RT

NO. DESCRIPTION

684-0040D 26” Housing Assembly
684-0041D 28” Housing Assembly
684-0055C 30” Housing Assembly

REF.

NO.

26. 684-0065 Impeller Assembly

27. 715-0114 Pin

28. 618-0120A 24” Gear Assembly

29. 710-0604A Hex Washer Screw 5/16-18

30. 784-5618 Bearing Housing

31. 741-0245 Hex Flange Bearing

32. 736-0188 Flat Washer

33. 741-0493A Flange Bushing

34. 605-5188A Spiral 24” RH

35. 605-5189A Spiral 24” LH

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

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

38. 784-5647 Chute Directional Control Bracket

39. 731-2635 Clean-Out Tool Mount

40. 731-2643 Clean-Out Tool

PART

NO. DESCRIPTION

784-5579A 26” Shave Plate
784-5582A 28” Shave Plate
784-5575 30” Shave Plate

618-0121A 26” Gear Assembly
618-0122A 28” Gear Assembly
618-0160A 30” Gear Assembly

605-5192A Spiral 26” RH
605-5196A Spiral 28” RH
605-5248A Spiral 30” RH

605-5193A Spiral 26” LH
605-5197A Spiral 28” LH
605-5249A Spiral 30” LH

23

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

17

16

18

20

19

20

22

18

23

54

28

27

26

25

17

21

19

16

10

2

1

3

8

4

5

55

9

7

11

42

38

29

39

43

45

41

39

54

40

12

24

30

24

53

13

15

55

14

7

6

34

23

7

35

23

37

44

46

36

51

50

29

47

48

49

52

24

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

REF.

NO.

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

2. 732-0193 Compression Spring

3. 736-0105 Bell Washer

4. 784-5619A Shift Handle

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

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

7. 714-0104 Cotter Pin

8. 720-0232 Shift Knob

9. 711-0677 Ferrule

10. 726-0100 Push Cap

11. 747-0921 Shift Rod

12. 720-0201A Chute Knob

13. 705-5204A Chute Directional Control

14. 747-0697 Eyebolt

- 735-0234 Grommet only

15. 684-0008A Shift Arm Assy

16. 720-0274 Grip

17. 705-5233A Clutch Lever Assy LH

18. 750-1032 Spacer

19. 735-0199A Rubber Bumper

20. 746-0778 Cable

21. 705-5275 Lever Bracket LH

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

23. 736-0119 Lock Washer 5/16

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

25. 705-5274 Lever Bracket RH

26. 749-0910C Handle RH

PA RT

NO. DESCRIPTION

705-5234A Clutch Lever Assy RH

4

1

12

16

REF.

NO.

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

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

29. 684-0105 Control Panel Assy - 2 Style

30. 749-0911C Handle LH

34. 784-5599 Handle Tab

35. 710-3259 Hex Cap Screw 5/16-18 x 2.0

36. 710-1880 Hex Cap Screw 5/16-18 x .75

37. 736-0185 Flat Washer

38. 731-0921 Upper Chute

39. 736-0159 5/16 Washer

40. 710-0451 Carriage Bolt 5/16-18 x .75

41. 710-0276 Carriage Screw 5/16-18 x 1.0

42. 720-0284 Knob

43. 731-1300B Lower Chute

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

45. 731-0851A Flange Keeper

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

47. 629-0058 Round Light Harness

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

49. 710-1003 Hex Screw

50. 712-0415 Hex Nut

51. 725-1300 Headlight 18 Watts

52. 731-1317 Headlight Cover

53. 736-0242 Bell Washer

54. 712-3068 Hex P\atch Nut 5/16-18

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

11

9

13

5

7

PA RT

NO. DESCRIPTION

684-0145 Control Panel Assy- 2 Style w/light
684-0106 Control Panel Assy - 4 Style

17

8

15

14

6

10

3

REF.

NO.

1. 618-0123 Housing—R.H.

2. 710-0642 Hex Screw 1/4-20 x .75

3. 711-0908A Spiral Axle 24"

4. 714-0161 Key

5. 715-0143 Pin-Spiral

6. 717-0526 Shaft-Worm

7. 717-0528 Gear-Worm

8. 718-0186 Collar-Thrust

PART

NO. DESCRIPTION

618-0124 Housing—L.H.

711-0909A Spiral Axle 26"
711-0910A Spiral Axle 28"
711-1024A Spiral Axle 30”

2

REF.

NO.

9. 721-0325 Plug

10. 721-0327 Seal-Oil

11. 736-0351 Washer-Flat

12. 736-0369 Washer-Flat

13. 736-0445 Washer-Flat

14. 737-0168 Grease

15. 741-0662 Bearing-Flange

16. 741-0663 Bearing-Flange

17. 618-0120A Ass’y. Complete 24"

25

3

PA RT

NO. DESCRIPTION

618-0121A Ass’y. Complete 26"
618-0122A Ass’y. Complete 28"
618-0160A Ass’y Complete 30”

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

20

37

38

32

33

34

31

39

40

28

27

46

Drive Clutch

13

42

5

7

11

10

6

4

Cable

Auger Clutch
Cable

1

3

4

2

1

14

26

36

15

16
25

5

42

16” Wheels

42

13” or 15” Wheels

9

25

23

7

43

10

11

12

17

8

18

24

4

1

22

21

8

35

29

45

20

5

44

19

41

Auger Clutch
Cable

Blower
Housing

30

26

1

1

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

REF.

NO.

1. 710-0599 Hex Screw

2. 784-5688 Drive Cable Guide Bracket

3. 784-5687A Auger Clutch Cable Bracket

4. 756-0625 Roller Cable

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

6. 784-5630B Frame Assembly

7. 741-0563 Ball Bearing

8. 736-0105 Bell Washer

9. 712-0116 Lock Jam Nut

10. 741-0598 Hex Flange Bearing

11. 736-0188 Flat Washer

12. 784-5689A Front Support Guide Bracket

13. 710-0538 Lock Hex Screw

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

15. 714-0474 Cotter Pin

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

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

18. 784-5590 Frame Shift Bracket

19. 784-5638 Frame Cover

20. 710-0599 Hex Washer Screw 1/4-20

21. 736-0351 Flat Washer .760 ID x .50 OD

22. 717-1445 Gear

23. 714-0126 Key

24. 717-1444 7-Tooth Shaft

PART

NO. DESCRIPTION

REF.

NO.

25. 715-0249 Roll Pin

26. 714-0143 Klik Pin

27. 684-0042C Friction Wheel Assembly

28. 656-0012A Friction Disc Wheel

29. 684-0013B Wheel Shift Rod Assembly

30. 746-0897 Drive Cable

31. 748-0190 Spacer

32. 684-0021 Friction Wheel Bracket Assembly

33. 732-0264 Extension Spring

34. 712-0711 Jam Nut 3/8-24

35. 746-0898B Drive Cable

36. 738-0869 Axle 13” Wheels

37. 790-00010 Friction Plate

38. 735-0243B Friction Wheel Rubber

39. 718-0301A Friction Wheel Hub

40. 618-0063A Friction Wheel Bearing

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

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

43. 711-1364 Clevis Pin

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

45. 714-0507 Cotter Pin

46. 790-00111 Friction Plate

PART

NO. DESCRIPTION

738-0830 Axle 16” Wheels

1

5

2

3

Wheel Assembly

SIZE REF. NO. 1

WHEEL ASS’Y

COMPLETE

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

16 x 6.5 734-1712 734-1525 734-0255 734-1711 741-0401

16.5 x 4.8 734-1709A 734-1530 734-0255 734-1708A 741-0401

REF. NO. 2

TIRE

ONLY

REF. NO. 3

AIR

VALVE

4

REF. NO. 4

RIM

ONLY

REF. NO. 5

SLEEVE

BEARING (2)

27

Models 614E

27

13

12

11

10

1

2

3

4

8

9

5

15

16

20

16

22

23

24

25

REF.

NO.

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

2. 731-1324 Belt Cover

3. 732-0339 Extension Spring

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

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

6. 05896A Drive Clutch Bracket

7. 748-0234 Shoulder Spacer

8. 756-0985 Pulley Half

9. 754-0343 V-Belt

10. 756-0984 Pulley Half

11. 736-0270 Bell Washer

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

13. 756-0313 Flat Idler

14. 710-1245A Lock Cap Screw 5/16-24

PA RT

NO. DESCRIPTION

4

7

6

14

17

18

19

21

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.

15. 712-0181 Lock Jam Nut 3/8-16

16. 756-0569 Pulley Half

17. 736-0242 Bell Washer

18. 736-0505 Flat Washer

19. 736-0507 Washer

20. 754-0430A Belt

21. 756-0967 Auger Pulley

22. 736-0247 Flat Washer

23. 736-0331 Bell Washer

24. 710-0696 Hex Cap Screw 3/8-24

25. 748-0360 Pulley

26. 710-0654A Hex Washer Screw 3/8-16 x 1.0

27. 629-0071 Extension Cord

PA RT

NO. DESCRIPTION

OEM-390-986 Electric Start Kit

26

28

Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E

26

1

2

24

25

23

22

20

21

20

21

20

19

12

4

5

8

9

10

11

5

14

13

16

17

18

19

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.

3

7

6

15

REF.

NO.

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

2. 731-1324 Belt Cover

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

4. 732-0710 Spring Extension

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

6. 05896A Drive Clutch Idler Bracket

7. 748-0234 Shoulder Spacer

8. 756-0987 Pulley Half

9. 754-0346 Belt

10. 756-0986 Pulley Half

11. 736-0270 Bell Washer

12. 710-0230 Hex Cap Screw

13. 756-0313 Flat Idler

PA RT

NO. DESCRIPTION

REF.

NO.

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

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

16. 710-1245B Hex Lock Screw 5/16-24 x .875

17. 736-0242 Bell Washer .340 ID x .872 OD

18. 736-0505 Flat Washer .341 ID x .50 OD

19. 756-0967 Pulley Auger

20. 756-0569 Pulley Half

21. 754-0430B V-Belt

22. 736-0247 Flat Washer

23. 736-0331 Bell Washer .39 ID x 1.13 OD

24. 710-0696 Hex Cap Screw 3/8-24 x .875

25. 748-0360 Pulley Adapter

26. OEM-390-987 Electric Start

29

PA RT

NO. DESCRIPTION

30

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, 1-330-220­4683 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 condi-
tions.

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

rate 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