MTD 31A 150 000 User Manual SINGLE STAGE SNOW THROWER Manuals And Guides L0010048

MTD Snowthrower, Gas Manual L0010048 MTD Snowthrower, Gas Owner's Manual, MTD Snowthrower, Gas installation guides

User Manual: MTD 31A-150-000 31A-150-000 MTD MTD SINGLE STAGE SNOW THROWER - Manuals and Guides View the owners manual for your MTD MTD SINGLE STAGE SNOW THROWER #31A150000. Home:Lawn & Garden Parts:MTD Parts:MTD MTD SINGLE STAGE SNOW THROWER Manual

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Operators Manual
Model Series
140 thru E173
Single Stage
Snow Throwers

Model

150 shown

IMPORTANT:

READ SAFETY RULES AND INSTRUCTIONS

CAREFULLY

Warning:

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forestcovered, brush-covered or grass-covered land unless the angina'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 ol California the above is required by law (Section 4442 ot the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department. P.O, Box 368022 Cleveland. Ohio 44136-g722

MTD PRODUCTS
PRINTED IN U.S.A.

INC.

P.O. BOX 368022

CLEVELAND,

OHIO

44136-9722
FORM NO. 770-10000

(6/98)

SECTION

1: IMPORTANT

SAFE OPERATION

PRACTICES

WARNING:

THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT
FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY ANDIOR PROPERTY OF YOURSELF
AND OTHERS.
READ AND FOLLOW ALL INSTRUCTIONS
IN THIS MANUAL BEFORE
ATTEMPTING
TO OPERATE YOUR SNOW THROWER. FAILURE TO COMPLY WITH THESE
INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL-HEED ITS
WARNING.

WARNING:

The Engine Exhaust from this product contains chemicals known
the State of California to cause cancer, birth defects or other reproductive
harm.

DANGER:

Your snow thrower was built to be operated according to the rules for safe operation
in this manual. As with any type of power equipment, carelessness or error on the part of the
operator can result in serious injury. If you violate any of these rules, you may cause serious
injury to yourself or others.

1. TRAINING
•

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

•

Never allow children under 14 years old to operate a
snow thr0wer. Children 14 years old and over should
only operate snow thrower under close parental
supervision. Onlypersons well acquainted with these
rules of safe operation should be allowed to use your
snow thrower.
No one should operate this unit while intoxicated or
while taking medication that impairs the senses or
reactions.

•

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

•

Exercise caution to avoid slipping or falling, especially
when operating in reverse.

1. PREPARATION
• Thoroughly inspect the area where the equipment is
to be used and remove all door mats, sleds, boards,
wires and other foreign objects.
•

Disengage all clutches
starling engine.

and shill into neutral before

•

Do not operate equipment without wearing adequate
winter outer garments. Do not wear jewelry, long
scarfs or other loose clothing which could become
entangled in moving parts. Wear footwear which will
improve footing on slippery surfaces.

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

• Use a groundedthree wire plug-in for all units with
electricdrive motorsor eiectdcstartingmotors.
• Adjust collector housing
crushed rock surface.

height

to clear gravel

• Never attempt to make any adjustments while engine
is running (except where specifically recommended
by manufacturer).
• Let engine
and
machine
adjust
to
temperature before starting to clear snow.

outdoor

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

2. OPERATION
Do not put hands or feet near or under rotating pans•
Keep clear of discharge opening and auger at all
times.
Exercise extreme caution when operating on or
crossing gravel drives, walks, or roads. Stay alert for
hidden hazards or traffic. Do not carry passengers.
After striking a foreign object, stop the engine,
remove wire from spark plug, and thoroughly inspect
the snow thrower for any damage. Repair the
damage before restarting and operating the snow
thrower.

• Never directdischargeat bystanders or allow anyone
in front of unit.

•

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

•

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

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

•

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

Do not overload machine capacity
clear snow at too fast a rate.

by attempting

•

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

Use only attachments and accessories approved by
the manufacturer of snow thrower (such as wheel
weights, counter weights, cabs. etc.).

collectodimpefler

Muffler and engine become
burn. Do not touch.

3. MAINTENANCE

when

hot and can cause a

ANDSTORAGE

Check shear boits, engine mounting botts, e'lc., at
frequent intervals for proper tightness to be sure
equipment is in safe working condition.
•

Never store the machine with fuel in the fuel tank
inside a building where ignition sources are present,
such as hot water and space heaters, clothes dryers,
and the like. Allow engine to cool before storing in
any enclosure.
Always refer to operator's manuat instructions for
important details if snow thrower is to be stored for an
extended period.

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

•

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

Disengage
power
to
transporting or not in use.

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

• Take all possible precautions when leaving the unit
unattended. Disengage the collector/impeller,
shift
into neutral, stop the engine, and remove the key.
• When cleaning, repairing, or inspecting, make certain
collector/impeller and all moving parts have stopped.
Disconnect spark plug wire and keep away from plug
to prevent accidental starting.

•

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

snow to

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

read,
understand
and follow
the warnings and instructions
in this
on the
machine.
WARNING
- YOUR
RESPONSIBILITY:
Restrict tile
usemanual
of thisand
power
machine
to persons who

WARNING

DANGER

Figure 1
3

SECTION

2: FINDING

YOUR MODEL NUMBER

This Operator's Manual isan important part of your new snow thrower. It will help you assemble, prepare and
maintain your snow thrower. Please read and understand what il says.
Before you start to prepare your snow thrower for its first use, please locate the model plate and copy the
information from it in this Operators Manual. The information on the model plate is very important if you need help
from your dealer or the MTD customer support department.
• Every snow thrower has a model plate. You can locate it by standing behind the unit in the operating
position and looking down at the dash panel.
The model plate will look like Figure 2.
This is where your model

number

will be.

This is where your serial number will be.
Copy the model number here:
Copy the serial number here:

Figure 2

SECTION

3: CALLING

CUSTOMER

SUPPORT

If you are having difficulty assembling this product or if you have any question regarding the controls, operation or
maintenance of this snow thrower, please call the Customer Support Department. You can reach them by calling:

1-800-800-7310
Before you call, make sure that you have both your model and serial number ready. By having the model and
serial number ready, you help the Customer Support Representative give you faster service. To find your units
model and serial number, see SECTION 2: FINDING YOUR MODEL NUMBER.

SECTION

4: UNPACKING

INSTRUCTIONS

• See Figure 3.
• Remove staples, break glue on the top flaps of the carton or cut tape at carton end and peel along top flap
to open carton. Remove any loose parts included with unit (i.e., Operator's manual, etc.).
• Cut along dotted lines and lay end of carton down flat. Remove packing material.
• Roll unit out of carton. Check carton thoroughly for loose parts.

REMOVE MANUAL & LOOSE PARTS
Figure 3

SECTION

5: SET- UP INSTRUCTIONS

This Operator's Manual covers several models of snow throwers. Much of the Manual pertains to all of the
models. However, there are some areas where only one model is covered. Use only the information that is
appropriate for your model.

ITEMS REQUIRED

FOR SET-UP

• Pair of pliers (not necessary, but helpful)
• 2 cycle oil
• Fresh Gasoline

IMPORTANT:

This unit is shipped WITHOUT GASOLINE or OIL. See separate Engine Operator's Manual
for proper fuel and two cycle engine oil recommendations.

Note:

Reference to right or left hand side of the snow thrower is lrom the operating position

CONTENTS OF HARDWARE PACK
• (2) Ignition Keys (One may be in the switch on snow thrower)
Models with Optional Extended Chute Crank:
• (1) Eyebolt
• (1) Saddle Washer 5/16" I.D.
• (2) Hex Nuts 5/16-18 Thread
• (1) Cotter Pin

RAISING

THE UPPER HANDLE

Loosen the hand knob on each side of the handle. See Figure 4. Remove packing material (if any).

£queeze the control handle against the upper handle. Hold !t in this position as you raise the handle,

Pull the handle up into the operating position. Be certain not to pinch the cable.

Tighten

the hand knobs.

3. Pull

4. Tighten
Hand
Knobs

1. Loosen Hand
Knobs
2.Squeeze
Control
Handle

Figure

ATTACHING

THE CONTROL

Bottom
Hole In
Control
Handle

CABLE

of Cable

Plastic Fitting
Housing

Figure 5
1.

The control cable may already be attached to the control handle. Complete steps two and three if cable is
loose.

Route the control cable over the lower handle. Place the end of the cable into the lower hole in the control
housing as shown in Figure 5. Push the plastic fitting until it locks into the control housing.

Lift the control handle up, and hook the "Z" end of the control cable into the bottom hole in the control handle,
from the outside to the inside (some models use only one hole). If necessary, use a pair of pliers to pull up on
the end of the cable to obtain slack in order to hook it into the control handle. Hold the "Z" fitting with the
pliers, not the cable, to avoid damaging the cable. (See inset - Figure 5.)

NOTE:

The upper hole in the control handle provides for adjustment in belt tension. If you have only one hole in
the control handle, refer to Belt Tension Adjustment Section of this manual.

INSTALLING

THE CHUTE CRANK

(Models
with Optional
Extended
Chute Crank only.)
On some units, the chute crank can be installed and secured from the top side of the snow thrower. Other units
are equipped with an adaptor that requires the assembler to tip the unit forward on the auger housing in order to
secure the crank from the underside.
To determine which installation procedure to follow, look at the chute crank coupler located on the top right side of
the instrument panel above the model plate. See Figure 6. If the adaptor has a hole through it visible from the top,
follow the "Secure from the Top" instructions. If the hole is not visible, follow the "Secure from the Underside"
instructions,
Chute Crank
Coupler -_-

Hole in
Coupler

._i_.

Figure 6

SECURE

FROM THE TOR

See Figure 7.
1.

Thread one 5/16" hex nut all the way onto the eyebolt.

Slide the eyebolt onto the chute crank. Insert eyebolt into the hole in the lower handle.

Insert the chute crank into the coupler at the top right side of the snow thrower.

Rotate the crank to align holes, and insert the cotter pin. Bend ends of cotter in opposite directions to secure.

Secure eyebolt with 5/16" saddle washer and hex nut. The cupped side of washer goes against the handle.
Adjust lower hex nut until the eyebolt is positioned so the chute crank turns freely. (does not bind)

Move upper hex nut down against the lower handle.

Tighten lower hex nut securely.

Cotter Pin
Chute

Crank

\,
Coupler

Rex

Figure 7
7

Chute Crank

SECURE

FROM THE UNDERSIDE.

See Figure8,
1.

Place a piece of the cardboard from the carton on a level surface. Tip the snow thrower forward so that the
housing rests on the cardboard from the box.

Thread one 5/16" hex nut all the way onto the eyebolt.

Slide the eyebolt onto the chute crank. Insert eyebolt into the hole in the lower handle.

Insert the chute crank into the hole provided in the snow thrower cover. Place the end of the crank into the
coupler located inside the snow thrower.

Rotate the crank to align holes, and insert the cotter pin (inside the snow thrower cover), Bend ends of cotter
pin in opposite directions to secure.

Secure eyebolt with 5/16" saddle washer and hax nut. The cupped side of washer goes against the handle
Adjust lower hex nut until the eyebolt is positioned so the chute crank turns freely (does not bind).

Move upper hex nut down against the lower handle.

Tighten lower hex nut securely.
Chute Crank

Chute Crank

Cotter

Hex

//
/
/

Figure B

ASSEMBLING

THE CHUTE

The snow thrower has been shipped with the upper chute pivoted all the way down. Assemble as follows:
Flat
Washer

Hand
Knob

.... Carriage
Bolt

Upper
Chute

Figure 9
1,

Turn the chute crank until the chute facing straight to the front. See Figure 9.

Remove the hand Knob, flat washer and carriage bolt from the upper chute.

Pivot the upper chute up so there is no gap between the upper and lower chute. Secure with hardware just
removed.

FUEL AND OIL MIXTURE

tank
indoors, when
is running
or while
engine that
is still
hot.
Do not
smoke when
filling
WARNING:
Handleengine
gasoline
carefully.
Remember
It Is
highly
flammable.
Never
fill fuel
fuel
tank.

Your snow thrower uses a two cycle engine that requires a mixture of gasoline and two cycle engine oil. Refer to
the Engine Operator's Manual for proper Oil and Fuel Recommendations.

SECTION

6: CONTROLS

ENGINE OPERATING CONTROLS
The engine operating controls and their functions are as follows (see Figure 10):
Choke Lever - Place choke lever in "ON" position to start a cold engine.
Primer Button - Used to inject fuel directly into the carburetor to insure fast starts in cold weather.
Ignition

Key - Ignition key must be in "ON" position to start engine.

Starter Handle - Used to manually start the engine.
Electric Starter (Optional

Equipment) - Starts engine using a 120V power source

Plug for Eleotrio Start (Optional Equipment) - Requires use of a two prong outdoor extension cord
and a 120V power source
Spark Plug Cover - Spark Plug located under the cover.

Spa_'k

Primer
Button

Ignition

c Ue,
r.
\

Electric

,oS)t;.o:ra,
I

Starter

"and'e
Choke Lever _
Off_
On
Figure 10

Plug for
Electric
Starter
(Optional)

SNOW THROWER
Model

140

OPERATING

CONTROLS

Model 140
(w/ Optional I=xt,
Chute Crank)

Models 150,15t

Models

142,152
172,173

=====,===_

Au4ger
Control
Handle

Auger
Control
Handle
I

.{J,,__Chut

Crank

Figure 11
Auger Control Handle - Located on the upper handle, the auger control handle is used to engage and disengage
the augers. See Figure 11. The snow thrower is designed to be propelled by the rotation of the augers. Pull the
control handle back against the upper handle to engage the augers; release to disengage. See "Operating Tips"
under "Operating the Snow Thrower" for more detail.
Chute Crank - Located on right side of dash panel. See Figure 11. The Chute Crank determines the direction
snow will be discharged. Turn clockwise to discharge snow to the left. Turn counterclockwise to discharge to the
right.

Distance
_

Greater

Less
Distance
Knob

Figure 12
Discharge Chute - The angle of the discharge chute controls the distance the snow is throwh. The distance snow
is thrown can be adjusted by tilting the discharge chute up for greater distance, or tilting down for less distance.
Loosen the hand knob on the side of the discharge chute to adjust. Tilt the chute to desired position, and tighten
hand knob. See Figure 12.

SECTION

7: OPERATION

Warning: Observe all warning labels on the snow thrower prior to use. See Section 1.
FUEL MIXTURE
Important:

Mix oil with gasoline as instructed in the Oil and Fuel Recommendations Section in the separate
Engine Operator's Manual packed with your snow thrower. Read and follow all instructionscarefully.

BEFORE

STARTING

ENGINE

Read the Engine Operator's Manual carefully in its entirety before attempting to operate the machine. Be
completely familiar with the controls and the proper use of the engine before operating the unit. Keep both
Operator's Manuals in a safe place for future and regular use.

STARTING

THE ENGINE

To start the engine on your snow thrower, follow the Starting InstrucUons in the Engine Operator's Manual.

OPERATING

THE SNOW THROWER

Start the engine as instructed in the Engine Operator's Manual.

Adjust the discharge chute up or down as desired. Then use the chute crank to position the discharge to
discharge snow with the wind. Do not throw snow toward a building as hidden objects could be discharged
with enough force to cause damage.

Making certain no bystanders or obstacles are in front of the unit, engage the auger control handle. As the
snow thrower starts to move, maintain a firm hold on the handle, and guide the snow thrower along the path
to be cleared.

Release the auger control handle to stop the snow throwing action and forward motion.

TO STOP THE ENGINE
1.

Run the engine for a few minutes before stopping to help dry any moisture on the engine.

To stop engine: Turn ignition key to OFF position and remove it from the snow thrower.

NOTE:
3.

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 unit. Move the choke lever back and forth several times and leave in the
ON position.

OPERATING

TIPS

For most efficient snow removal, remove snow immediately after it falls.

Discharge snow downwind whenever possible. Slightly overlap each previous cleared path.

Lifting up on the handle will allow the rubber on the augers to propel the snow thrower forward.
downward on the handle will raise the augers off the ground and stop the forward motion.

Pushing

NOTE; Excessive upward pressure on the handle will result in premature wear on the rubber auger blades
which would not be covered by warranty.
4.

Run the engine for a few minutes before stopping to help dry any moisture on the engine.

Clean the snow thrower thoroughly after each use.

It is not recommended
that you operate this snow thrower on gravel as loose gravel can be easily picked up
and thrown by the auger, causing an injury or damage to the snow thrower.

SECTION

8" ADJUSTMENTS

running.
ARNING:

_lb
SHAVE

NEVER attempt to clean chute or make any adjustments

or repairs while engine is

PLATE ADJUSTMENT

Augers

Shave Plate

Wheels

Nuts & Bolts
Figure 13

To check the adjustment of the shave plate, place the unit on a level surface. See Figure 13. The wheels,
shave plate and augers should all contact the level surface. If the shave plate is adjusted too high, the snow
may blow under the housing. If the shave plate wears excessively, or the unit will not self propel the shave
plate may be adjusted too low.

NOTE:
2.

On new units or units with a new shave plate installed, the augers may slightly raise off the ground.

To adjust, tip the snow thrower back so it rests on the handle. See Figure 13. Loosen the lock nuts and bolts
which secure the shave plate to the housing. Move the shave plate to desired position and retighten the nuts
and bolts. Make certain all nuts and bolts are tightened securely.

BELT TENSION

ADJUSTMENT
High Position
Upper
Hole

Middle Position

Idler
Bracket

Clutch
Low Position

Housing

\ _

Spring on
End of Clutch

n_Auger
Pulley

Cable

Figure 14
Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt. Adjustment is
needed if the augers seem to hesitate while turning, but the engine maintains the same speed.
The upper hole in the control handle provides adjustment for belt tension. To adjust, disconnect the "Z" end of
control cable from the bottom hole in the control handle. Refer to Figure 14. Hook the cable into the upper hole in
control handle.
If additional adjustment is required, adjust the other end of the control cable at the Idler Bracket as follows:
Remove the belt cover. See Figure 15. There are three adjustment holes provided in the Idler Bracket Assembly.
See Figure 14. To adjust, move the extension spdng on the end of the clutch cable to the next higher adjustment
position on the Idler Bracket Assembly. Reassemble belt cover.
12

SECTION

MAINTENANCE

is running.
ARNING:

NOTE:

NEVER attempt to clean chute or make any adjustments or repairs while engine

Check engine and snow thrower frequently for loose nuts, bolts, etc., and keep these items tightened.

ENGINE
Refer to the separate Engine Operator's
procedures.

Manual packed with your snow thrower for all engine maintenance

SHAVE PLATE REPLACEMENT
The shave plate is subject to wear. It should be checked periodically. There are two wearing edges and the shave
plate can be reversed. Refer to Figure 13.
To remove the shave plate:
1.

Remove the four carriage bolts and hex lock nuts which attach it to the snow thrower housing.

Install new shave plate, making sure the heads of the carriage bolts are on the inside of the housing.

Adjust the shave plate according to procedure in the "Adjustment" section of this manual.

Tighten securely.

BELT REPLACEMENT

Auger "_'_

_s)_l!_2"//

Po,,ey l
Hex
Screws
Figure 15
1.

Remove the belt cover by removing five hex screws. See Figure 15.

Pull up on the idler pulley and slip the belt off engine pulley.

3.
4.

Push down on idler pulley and slip the belt off auger pulley.
Reassemble new belt in reverse order.

Reinstall the belt cover.

Belt

_\Pulley

SECTION

10. OFF-SEASON

WARNING:

STORAGE

Never store engine with fuel in tank indoors or in enclosed,

poorly ventilated

areas
fumes
may reach
an open flame, spark or pilot light as on a furnace, water
heater, where
clothesfuel
dryer,
or other
gas appliance.
• Clean snow thrower thoroughly.
• Follow "Storage" instructions tound in the separate Engine Operator's
storage properly is important to prevent problems next season.

Manual. Preparing the engine for

• Store in a clean, dry area. Block the snow thrower up so it is not resting on the rubber auger blades.
NOTE: When storing any type of power equipment in an poorly ventilated or metal storage shed, care should be
taken to rustproof the equipment, especially springs, cables and all moving parts.

SECTION

11: TROUBLE

Trouble

Possible

Fngin_aiails to sta_

;Fngi_ns

SHOOTING

GUIDE

Cause(s)

Corrective

-_Fuel tank-empty, or stale fuel.
I
Blocked fuel line.
Key not n switch on engine,
Spark plug wire disconnected•
Faulty spark plug.
Improper gasoline and oil mixture•
_Unii r__ng
on--CHOKE.
!Blocked fuel line or stale fuel.
Water or dirt in fuel system.

erratic

4Carburetor

out of adjustment.

I
Engine overheats

Incorrect fuel mixture.
,Carburetor not adjusted properly.
_SSp-a

LOSSof power

_xcessive

rk plug wire loose. ---Vent in gas cap plugged.

_,_haust
port plugged.
ICoose-partsor d_ged
/

unit fails to propel itself•

Unit fails-todischarge

Snow_

augerl

IFiTtank

Action

with clean, fresh gasoline/oil mixture. Refer to

engineClean
fuel
manual
line. packed with your unit.
Insert Key
Connect wire to spark plug.
iClean, adjust gap or replace.
I
_Refer to fuel mixture in separate engine manual,
E
Move choke lever to OFF position.
-Clean fuel line: fill tank with clean, fresh gasoline'oiL
Drain fuel tank. Refill with clean, fresh gasoline/oil.
,;Refer to eng ne manual packed with your unit
IRefer to engine manual packed with your unit or have
Pcarburetor adjusted by an authorized service dealer
Drain fuel tank. Refill with proper fuel mixture. Refer to
engine manual packed w th your un t
Refer to engine manual packed with your unit or have
carburetor
ad tighten
usted by
an authorized
Connect and
spark
plug wire. service dealer.
Clear vent.
_Clean-see maintenance section.
/Stopengine-i_ely
an_connect
spark plug
!wire. Tighten all bolts and nuts. Make all necessary
repairs. If vibration continues, have unit serviced by an I
authorized service dealer.
I

'Incorrect adjustment of drive cable

Adjust drive cable. Refer to Adjustment section of _thi_-

I
Drive belt loose or damaged.

manual.
Rep ace dr ve be t. Refer To Be t Replacement in
Maintenance section of this manual.

"Discharge chute c_gedl

....

i Stop engine immediately and disconnect spark plug

i
/

'Foreign object lodged in auger.

wire.
Clean discharge
chute
inside of spark
auger plug
housing
Stop engine
immediately
andand
disconnect
wire. Remove object from auger.

'lncorrect adjustment of drive cable.

Adjust drive cable. Refer to Belt Tension Adjustment in !
•Ad ustment section of this manual.
Replace drive belt. Refer to Belt Replacement in
_Ma ntenance section of this manual.

iDrive belt loose or damage.

Refer to separate engine manual packed with your mower for more engine related information•
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer or
call 1-800-800-7310 for the Customer Support Center.
14

Models
140
150
E150
E151
RE_
NO.
1
2
3
4
5
6
7
8
9

PART
NO.
710-1270
710-0487
712-0324
720-0276
725-0157
746-0883
747-0946
749-0705
736-0451

DESCRIPTION
Screw--Oval C-Sink L
Bolt Carriage
Nut Ins1, Lock
Knob_Handle
Tie Cable
Body--Lever Control
Handle Ass'y. Control
Handle--Upper
:Washer Saddle

_TY.
"1
I 2
1
2
1
1
1
1
2

Models
142
E 152
E 172
E 173
RER
NO,
1
2
3
4
5
6
7
8
90

PART
NO,
710-1270
710-0487
:712-0324
720-0295
720-0264
725-0157
736-0451
746-0883
747-0966
749-0711A

Screw--Oval C-Sink L
DESCRIPTION
Bolt_Carriage
Nut Insul. Lock
Grip Foam
Knob Handle
Tie Cable
Washer Saddle
Body--Lever Control
Handle Ass'y, Control
Handle--Upper

1 QTY'
t2
1
1
2
1
2
_ 1
I1

Models

140 thru E173

Models

_!
!
1
2
3
4
5

140 thru E173

PART
NO.
710-0167
710-0276
710-0323
710-0451
710-0642

6
7
8
9
10
11
12
13
15
16
17

1710-1005
_710-0773
710-0896
.710-3015
711-0848A
712-0429
712-3010
712-0116
712-3027
720-0284
731-0851A

18
19
20

73!-0915B
731-0921
1731-1033

21
22
23

732-0357A
1736-0108
736-0119

-Re

l
DESCRIPTION
-I BoltbC_iage
Bolt- Carriage
ii Screw--Pan Head
Bolt--Carriage
!Screw--Hex Washer
Screw--Hex Washer
Screw--Hex
Screw--Hex
Screw--Hex
.Axle

Washer
Washer
Cap

Nut--Hex Center Lock
Nut--Hex
JNut--Hex Lock
Nut--Hex Look Flanged
!Knob
Keeper_hute
Chute--Lower
Chute---Upper
Shave Plate
Spring--Extension
!Washer--Flat
Washer--Lock

•
t

N_F..

NO.
PART
734-1176

PART

NO._
NO.
25,7-36
-01-7626
=736-0159
27
736-0326

4
1
1
1
1
6
2
4
6
1 "
1
3
1
10
1
3
1
1
1
1
2
1

28
30
31
32

736-0329
741-0600
746-0910A
1748-0234

33
34
35

!749-0796
756-0313
_784-5174

36
37
38
39
40
41
42
43

784-5176
784-5175B
684-0114
784-5485
753-0613
710-0352
784-5720
710-0451

_55

736-0242
74%0475
710-0459A

._._ESCRIPTION
_wheel
Ass'y--

___

DESCRIPTION

IWash

IWaeher
,Washer--Flat
Washer--Lock
Ball Beanng
Cable---Clutch
Spacer--Shoulder
Handle-Lower
diet--Flat
_Cup---Bearing
,Cover--Belt
_Bracket--Idler/Brake
Housing_Blower
Auger Ass'y, Comp,
IAuger Rubber Replacement
,Screw--Hex Washer
Bracket - Crank
Screw - Cap
Washer - Bell
Bushing
Screw - Cap

Q2_

1
1
1
1
2
1
1
1
1
1
1
1
2
2
1
1

Models

140 and E142

Engine

NJ. ....
NO
1
684-0056
2
710-0805
3
710-0895
4
710-1268
5
!712-0252
6
712-3010
7
714-0104
8
715-0138
9
720-0201A
10
725-0201
11
725-1425
12
726-0100
13
731-0702
14
731-1133A
15
736-0119

DESC_RIPTION
[Dash--21"
_Screw--Hex
! Screw--Hex Tap
:Screw--Hex Tap
Nut Hex
Nut--Hex
1Pin---Cotter
',Pin Roll
Knob_Chute Crank
Key--Ignition
Switch--Key
Nut Push
'Shroud
Plug
Washer Lock

....

QTY.
" 1 -

4
1
1
1
2
1
1
1
1
4

REF.
NO.

]
/

P_
NO

/736-0185

17
18
20
21
22
23
24
26
27
28
29
30
31

1736-0225

/736-o400
1741-0475
784-5178A
784-5344
714-0111
,747-0737
684-0126
750-0785
715-0138
735-0234
1747-0697
1712-3010
[736-0451

1"Optional

DESCRIPTION

[Washer - Flat
[Washer Internal Lock
|Washer Flat
/Bushing
|Bracket Chute Crank
ICrank Ass'y. Chute
!Cotter Pin 1
Crank - Chute. Upper 1"
Crank - Chute - Lower 1"
Spacer 1"
Pin - Roll t
Grommet - Rubber 1"
Eyebolt - Chute Crank 1"
Nut - Hex 1"
iWasher - Saddle 1"

Model 140 Chute

Crank Assembly

2
t

Models

REF.
L NO..
1
2
3
4
5
6
7
8
9
10
11
12
13

150, E150, E173

PART
NO
710-0805
710-1005
710-1003
710-1268
712-0252
712-3010
714-0104
714-0507
715-0138
720-0201A
725-0201
725-1425
726-0100

i
____
DESCRI _P_TION
_crew-Hex
Screw-Hex Washer
Screw-Hex
Screw-Hex
Nut-Jam
iNul-Hex
Hairpin
Pin-Cotter
Pin Roll
Knob
Key-Ignition
Sw teh
_Cap-Push
Shroud-Black

1. 173!-1087

T
_QTY.
4
1
1
12
1
6
1
1
2
1
2
1
1
1

REF.
NO.
15
16
17
18
19
20
21
22
24
25
26
27
i

PART
NO
731-1089A
731-1133A
735-0234
736-0119
736-0185
736-0225
736-0400
736-0451
747-0697
747-0737
750-0785
884-0126
'784-5572

....
DESCRIPTION
Cover-Choke
,Plug-Insert
Grommet-Rubber
Washer-Lock
Washer-Flat
Washer-Lock-lntemal
Washer-Flat
Washer-Saddle
Eyebolt-Chute Crank
Crank-Chute-Lower
Spacer
Crank-Chute-Upper

IDash

]

'1
1
1
4
2
1
3
1
1
1
1
1
1

Models

E151, E172,

/
/

REF.
NO,
1
2
3
4
5
6
7
8
9
10
11
12
13
14

PART
784-5572
NO
710-0805
710-1005
710-1003
710-1268
712-3010
714-0104
714-0507
715-0138
720-0201A
725-0201
725-1341B
725-1346
725-1347

i
Dash

DESCRIPTION

',Screw--Hex
Screw_ex
Screw--Hex
Scraw--Hex
Nut--Hex
Hairpin
Pin.otter
Pin--Roll
Knob
Key--Ignition
Key--Ignition
Nut--Ignition
Cover.lgnit!on

Cap
Washer

with Logo
Switch
Switch ....

....

4
1
2
8

1
1

REF. "
PART
NO.
NO
15
725-1425
16
726-0100
17
731-1089A
18
731-1133A
19
731-1765
20
735-0234
21
736-0119
23
736-0225
24
736-0451
26
747-0697
27
747-0737
28
750-0785
29
684-0126

......

T..

DESCRIPTION
Switch--Key
Cap--Push
Cover--Choke
Pug-- nsert
Shroud--Black
Grommet--Rubber
Washer--Lock
_Washer--Lock Internal
IWasher--Saddle
!Eyebolt---Chute Crank
Crank_hute
Upper
Spacer
Crank--Chute Lower

QTY.
1
1
1
1
1
1
4
1
1
1
1
1
1

Models 140, E142

Tightening Torque:
150-130 in. Ibs.

/I
I/

REF.I
NO.
"

PAre
NO

i
/

DESCRIPTION

1
2

_7"10-0i-57
i710-0805

..... _Screw--Hex
|Screw--Hex

Cap
Cap

3
4
5

1710-0896
!726-0205
!736-0242

IScrew--Washer
iClamp_Hose
'Washer--Bell

6
7
8

750-0589
750-0716
1751-0352

Spacer
Spacer
iTank--Fuel

QTY.
1
4
2
2
5
4
1
1

REF.
NO.
9
10
11
12
13
14
N/I

PART
NO
751-0535-12
754-0367
756-0416B
756-0550
784-5177
-OEM-390-697

DESCRIPTION
Hose--Fuel 12"
V-Belt
V-Pulley Half
Pulley
,Engine Support Bracket
Obtain from Engine
Manufacturer
Electric Start Kit (Optional)

QTY,
1
1
2
1
1
1

Model150

I
I

Tightening Torque;
160-300 in. Ibs.

NO.
1

NO.
705-5139

2
4
5
6
7
8
9
10

1710-0157
710-0289
710-0896
710-3025
726-0205
736-0119
736-0242
:736-0329

.....
DESCRIPTION
Bracket - support Gas Tartk
Screw - Hex Cap
Screw - Hex
Screw - Washer
IScrew - Hex Cap
!Clamp - Hose
Washer - Lock
i Washer - Bell
!Washer - Lock

nEF? -

" -1 _
1
2
2
4
2
4
1
2

NO,
-:i f
12
13
14
15
16
17
19
N/I

- i_h_

NO,
•741-0475
751-0535-16
,751-0540A
751-0800
754-0101A
756-0416B
756-0475
iOEM-3g0-gg6

' QTY.
DESCRIPTION
' Bushing-Plastic
......
Hose - Fuel Line 16"
Tank - Fuel 2 Qt.
Cap - Fuel
V-Belt
V-Pulley Half
Pulley
Obtain from Engine Manufacturer
Electric gtart Kit (Optional)

1
1
1
1
2
1
1
1

Models E150, E151, E152, E172, E173

Tightening
j_

Torque:

150-300 in. Ibe.

REF.
NO,
1

PART
NO
629"0236

2
3
5
6
7
8
9
10

705-5139
710-0157
710-028g
710-0896
710-1003
!710-3025
=726-0152
1726-0205

._it [ ao-o119

DESCRIPTION
Cord - Extension 110V3M
2 Prong
Bracket - Support Fuel Tank
i Screw. Hex Cap
Screw - Hex
Screw - Washer
Screw - Hex
IScrew - Hex Cap
' Clamp - Mounting
Clamp - Hose
Washer- Lock

REF.
NO.
12
13
14
15
16
17
18
19
20
22

QTY.

1
1
1
2
2:
2
4
1
2
4

PART
NO
DESCRIPTION
738-0242
Washer - Bell
736-0329
Washer - Lock
741-0475
Bushing - Plastic
751-0535-16 Hose - Fuel Line 16"
751-0540A
Tank - Fuel 2 Qt.
751-0800
Cap - Fuel - Slack Letters
754-0101A
V-Belt
756-0416B
V-Pulley Half
756-0475
Pulley
-rObtainfrom Engine Manufacturer

' QTY.
1
2
1
1
1
1
1
2
1
1

MANUFACTURER'S

LIMITED

WARRANTY

FOR:

M4c,,NEs
)[(
For TWO YEARS from the date of retail purchase
within the United States of America, its possessions
and territories, MTD PRODUCTS INC will, at its
option, repair or replace, for the original purchaser,
free of charge, any part or parts found to be
defective in material or workmanship. This warranty
covers units which have been operated and
maintained in accordance
with the operating
instructions furnished with the unit, and which have
not been subject to misuse, abuse, commercial use,
neglect,
accident,
improper
maintenance
or
alteration.

products sold or exported outside of the United
States of America, its possessions and territories,
except those sold through MTD PRODUCTS INC's
authorized channels of expod distribution.
Other Warranties:
1.

The engine or component parts thereof carry
separate warranties from their manufacturers.
Please refer to the applicable manufacturer's
warranty on these items.

*Batteries are covered by a 90-day replacement
warranty.

Normal wear parts or components thereof are
subject to separate terms as noted below in the "No
Fault Ninety Day Consumer Warranty" clause.

Log splitter pumps, valves and cylinders or
component parts thereof are covered by a one
year warranty.

All normal wear part failures will be covered on this
product for a period of g0 days regardless of cause.
After 90 days, but within the two year period, normal
wear parts failures will be covered ONLY IF caused
by defects in material or workmanship of OTHER
component parts. Normal wear parts are defined as
batteries*, belts, blades, blade adapters, grass bags,
rider deck wheels, seats, snow thrower skid shoes,
shave plates and tires.

All other warranties,
express
or implied,
including any implied warranty of merchantability
or fitness for a particular purpose, are hereby
expressly disclaimed in their entirety.

The provisions as set forth in this warranty
provide the sole and exclusive remedy of MTD
PRODUCTS INC's obligations arising from the
sales of its products. MTD PRODUCTS INC will
not be liable for incidental or consequential loss
or damage.

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, please check the yellow pages or contact
the Customer
Service
Department
of MTD
PRODUCTS INC, P. O. Box 368022, Cleveland,
Ohio 44136-9722. Phone 1 (800) 800-7310. The
return of a complete unit will not be accepted by the
factory unless prior written permission has been
extended by the Customer Service Department of
MTD PRODUCTS INC,
Transportation
charges: Transportation charges
for the movement of any power equipment unit or
attachment are the responsibility of the purchaser.
Units exported out of the United States: MTD
PRODUCTS INC does not extend any warranty for

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. Certain disclaimers are not allowed in some
states and therefore they may not apply to you
under all circumstances.
NOTE: This warranty does not cover routine
maintenance items such as lubricants, filters, blade
sharpening and tune-ups, or adjustments such as
brake adjustments, clutch adjustments or deck
adjustments. Nor does this warranty cover normal
deterioration of the exterior finish due to use or
exposure.

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 24
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Mon Apr 02 11:42:03 2007
Author                          : 
Title                           : 
Subject                         :

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MTD 31A 150 000 User Manual SINGLE STAGE SNOW THROWER Manuals And Guides L0010048

MTD Snowthrower, Gas Manual L0010048 MTD Snowthrower, Gas Owner's Manual, MTD Snowthrower, Gas installation guides

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