MTD 139 cc OHV Manuel utilisateur

Marque: MTD

Modèle: 139 cc OHV

Catégorie: Tondeuses à gazon

Taper: Manuel utilisateur

MTD Products Ltd., P. O. Box 1386, KITCHENER, ONTARIO N2G 4J1

Printed In USA

Safe Operation Practices • Set-Up • Operation • Maintenance • Troubleshooting • Warranty

WARNING

READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL

BEFORE ATTEMPTING TO OPERATE THIS MACHINE.

FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

OPERATOR’S MANUAL

769-06653C

10.15.12

139 cc OHV Vertical Shaft Engine

* Model 1P65BOB Shown

This Operator’s Manual is an important part of your new engine. It will help you prepare and maintain the engine for the best

performance. Please read and understand the contents before operating the engine.

Thank You

Customer Support

Please do NOT return the machine to the retailer or dealer without first contacting our Customer Support Department.

If you have difficulty with this product or have any questions regarding the controls, operation, or maintenance of this

engine, you can seek help from the experts. Choose from the options below:

◊ Visit us on the web at www.mtdcanada.ca

◊ Call a Customer Support Representative at (800) 668-1238

◊ Write us at P.O. Box 1386 • 97 Kent Avenue • Kitchener, Ontario, Canada • N2G 4J1

Model NuMber/Serial NuMber

Record Product Information

Before operating your new engine, please locate the model plate on the engine and record the information in the provided area

below. This information will be necessary, should you seek technical support via our web site or with your local dealer.

To The Owner

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

Safety Symbols ........................................................ 5

Set-Up ....................................................................... 6

Controls & Features ................................................. 8

Operation ................................................................. 9

Maintenance & Adjustments .................................11

Troubleshooting .....................................................15

Replacement Parts .................................................16

Warranty .................................................................17

Table of Contents

Important Safe Operation Practices

WARNING! 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 the equipment. Failure to

comply with these instructions may result in personal injury. When you see this symbol.

HEED IT’S WARNING!

DANGER! This machine was built to be operated according to the safe operation practices

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 fingers, hands,

toes and feet and throwing foreign objects. Failure to observe the following safety

instructions could result in serious injury or death.

CALIFORNIA PROPOSITION 65

WARNING! Engine Exhaust, some of its constituents, and certain vehicle components

contain or emit chemicals known to State of California to cause cancer and birth defects

or other reproductive harm.

Training

1. Read, understand and follow all instructions on the engine

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 engine and disengage them quickly.

3. Never allow children under 14 years of age to operate the

engine. Children 14 and over should read and understand

the instructions and safe operation practices in this manual

and on the engine and be trained and supervised by an

adult.

4. Never allow adults to operate the machine without proper

instruction.

5. Keep the area of operation clear of all persons, particularly

small children and pets. Stop machine if anyone enters the

area.

Preparation

1. Thoroughly inspect the area where the equipment is to

be used. Remove all stones, sticks, wire and other foreign

objects which could be tripped over and cause personal

injury.

2. Wear sturdy, rough-soled work shoes and close fitting

slacks and shirts. Loose fitting clothes or jewelry can be

caught in the moving parts. Never operate the machine in

bare feet or sandals.

3. Disengage clutch levers and shift (if equipped) into nuetral

(“N”) before starting the engine.

4. Never leave the engine running while unattended.

5. Never attempt to make any adjustments while the engine

is running, except where specifically recommended in the

operator’s manual.

Safe Handling of Gasoline:

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 and/or your clothes which can

ignite. Wash your skin and change clothes immediately.

1. When adding fuel, turn engine OFF and let engine cool at

least 2 minutes before removing the gas cap.

2. Fill fuel tank outdoors or in well ventilated area.

3. Use only an approved gasoline container.

4. Never fill containers inside a vehicle or on a truck or trailer

bed with a plastic liner. Always place containers on the

ground away from your vehicle before filling.

5. If possible, remove gas-powered equipment from the truck

or trailer and refuel it on the ground. If this is not possible,

then refuel such equipment on a trailer with a portable

container, rather than from a gasoline dispenser nozzle.

6. Keep the nozzle in contact with the rim of the fuel tank or

container opening at all times until fueling is complete. Do

not use a nozzle lock-open device.

4 Section 2 — important engine Safe operation practiceS

7. Do not overfill fuel tank. Fill tank to full as indicated by the

fuel level indicator installed inside of the fuel tank. Do not

over-fill to allow space for fuel expansion. On some models,

a fuel level indicator may NOT be present, in this instance,

fill the tank no more than 1/2 inch below the bottom of the

filler neck to allow space for fuel expansion.

8. Replace fuel cap and tighten until the cap ratchets.

9. If gasoline is spilled, wipe it off the engine and the

equipment. Move the machine to another area. Wait five

minutes before starting the engine.

10. To reduce fire hazards, keep the machine free of grass ,

leaves or other debris build up. Clean up oil or fuel spillage

and remove any fuel-soaked debris.

11. Keep gasoline away from sparks, open flames, pilot lights,

heat, and other ignition sources.

12. Never fuel equipment indoors because flammable vapors

will accumulate in the area.

13. Extinguish all cigarettes, cigars, pipes, and other sources of

ignition.

14. Check fuel line, tank, cap, and fittings frequently for cracks

or leaks. Replace if necessary.

Operation

1. When starting the engine, make sure spark plug, muffler,

and fuel cap are in place.

2. Do not crank engine with spark plug removed.

3. If fuel spills, wait until it evaporates before starting engine.

4. Allow muffler, engine cylinder, and fins to cool before

touching.

5. Keep children away from hot or running engines. They can

suffer burns from a hot muffler.

6. Remove accumulated combustibles from muffler and

cylinder area.

7. Operate equipment with all guards in place.

8. Keep hands and feet away from rotating parts.

9. Tie up long hair and remove jewelry.

10. Do not wear loose-fitting clothing, dangling drawstrings or

items that could become caught.

11. When starting the engine, pull cord slowly until resistance

is felt, then pull rapidly.

12. Remove all external equipment/engine loads before

starting engine.

13. Direct coupled equipment components such as, but not

limited to blades, impellers, pulleys, sprockets, etc., must

be securely attached.

Maintenance & Storage

1. Keep the engine in safe working order

2. Allow the engine to cool at least five minutes before

storing. Never tamper with safety devices. Check their

proper operation regularly.

3. Check bolts and screws for proper tightness at frequent

intervals to keep the engine in safe working condition.

Visually inspect the engine for any damage.

4. Before cleaning, repairing or inspecting; stop the

engine and make certain all moving parts have stopped.

Disconnect the spark plug wire and ground it against the

engine to prevent unintended starting.

5. Do not change the engine governor settings or over-speed

the engine. The governor controls the maximum safe

operating speed of the engine.

6. Maintain and replace safety and instruction labels as

necessary.

7. Always refer to the operator’s manual for important details

if the machine is to be stored for an extended period of

time.

8. If the fuel tank has to be drained, do this outdoors.

9. Observe proper disposal laws and regulations for gas, oil,

etc. to protect the environment.

Do not modify engine

To avoid serious injury or death, do not modify engine in any

way. Tampering with the governor setting can lead to a runaway

engine and cause it to operate at unsafe speeds. Never tamper

with factory setting of engine governor.

Notice Regarding Emissions

Engines which are certified to comply with California and federal

EPA emission regulations for SORE (Small Off Road Equipment)

are certified to operate on regular unleaded gasoline, and

may include the following emission control systems: Engine

Modification (EM), Oxidizing Catalyst (OC), Secondary Air

Injection (SAI) and Three Way Catalyst (TWC) if so equipped.

Spark Arrestor

WARNING: This machine 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.

A spark arrester for the muffler is available through your nearest

engine authorized service dealer.

5Section 2 — important engine Safe operation practiceS

WARNING! Your Responsibility — 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.

SAVE THESE INSTRUCTIONS!

Safety Symbols

This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the

machine before attempting to assemble and operate.

Symbol Description

READ THE OPERATOR’S MANUAL(S)

Read, understand, and follow all instructions in the manual(s) before attempting to

assemble and operate

WARNING—GASOLINE IS FLAMMABLE

Allow the engine to cool at least two minutes before refueling.

WARNING— CARBON MONOXIDE

Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon

monoxide, an odorless and deadly gas.

WARNING— ELECTRICAL SHOCK

Do not use the engine’s electric starter in the rain

WARNING— HOT SURFACE

Engine parts, especially the muffler, become extremely hot during operation. Allow engine

and muffler to cool before touching.

Gas & Oil

NOTE: The engine is shipped without gasoline or oil in the

engine. Running the engine with insufficient oil can cause

serious engine damage and void the engine warranty.

WARNING! Always keep hands and feet clear of

equipment moving parts. Do not use a pressurized

starting fluid. Vapors are flammable.

Oil Recommendations

Before starting engine, fill with motor oil, capacity is 600 ml/20

oz. Refer to viscosity chart in Fig. 3-1 for oil recommendations.

Do not over-fill. Use a synthetic or non-synthetic 4-stroke, or an

equivalent high detergent, premium quality motor oil certified to

meet or exceed U.S. automobile manufacturer’s requirements for

service classification SG, SF. Motor oils classified SG, SF will show

this designation on the container.

SAE 10W-30 is recommended for general, all temperature use. If

single viscosity oil is used, select the appropriate viscosity for the

average temperature in your area from the chart below.

1. Single Viscosity

2. Multi Viscosity

CAUTION: Do not use non-detergent oil or 2-stroke engine oil. It

could shorten the engine’s service life.

NOTE: A 5w30 synthetic oil may be used to improve start ability

for cold weather (temperatures below 40 F).

Checking Oil Level

IMPORTANT: Be sure to check the oil while on a level surface with

the engine stopped.

NOTE: Your engine may be equipped with either a short or

extended oil dipstick. Follow the appropriate instructions below

for the engine on your unit.

Short Dipstick

1. Remove the oil filler cap/dipstick and wipe the dipstick

clean. See Fig. 3-2.

2. Insert the cap/dipstick into the oil filler neck, but do not

screw it in.

3. Remove the oil filler cap/dipstick. If the level is low, slowly

add oil until oil level registers between high (H) and low (L).

See Fig. 3-2.

4. Replace and tighten cap/dipstick firmly before starting

engine.

NOTE: Do not overfill. Overfilling with oil may cause

smoking, hard starting, spark plug fouling, or oil saturation

of air cleaner.

Fill

between

high and

low marks

Figure 3-1

-30º -20º

10w

20w

20w40, 20w50

15w40, 15w50

10w40

10w30

-10º 0º

0º 20º 40º 60º 80º 100º

10º 20º 30º 40º

-20º

(ºC)

(ºF)

Figure 3-2

Set-Up

Extended Dipstick

1. Remove the oil filler cap and wipe the dipstick clean. See

Fig. 3-3.

2. Insert the dipstick into the oil filler neck. Turn the dipstick a

1/4 turn into the locked position to fully seat.

3. Remove dipstick. If the level is low, slowly add oil to the

upper limit on the dipstick. See Fig. 3-3 inset.

4. Reinsert the dipstick into the locked position before

starting the engine.

NOTE: Do not overfill. Overfilling with oil may cause

smoking, hard starting, spark plug fouling, or oil saturation

of air cleaner.

Fuel Requirements

CAUTION: Operating the engine with E85 fuel, an

oil/gasoline mixture, dirty gasoline, or gasoline over

30 days old without fuel stabilizing additive may

result in damage to your engine’s carburetor.

Subsequent damage would not be covered under

the manufacturer’s warranty.

Use automotive gasoline (unleaded or low leaded to minimize

combustion chamber deposits) with a minimum of 87 octane.

Gasoline with up to 10% ethanol or 15% MTBE (Methyl Tertiary

Butyl Ether) can be used. Never use an oil/gasoline mixture or

dirty gasoline. Avoid getting dirt, dust, or water in the fuel tank.

DO NOT use E85 gasoline.

WARNING! Gasoline is extremely flammable and is

explosive under certain conditions.

• Refuel in a well-ventilated area with the engine stopped.

Do not smoke or allow flames or sparks in the area where

the engine is refueled or where gasoline is stored.

• Do not overfill the fuel tank. After refueling, make sure the

tank cap is closed properly and securely.

• Be careful not to spill fuel when refueling. Spilled fuel or

fuel vapor may ignite. If any fuel is spilled, make sure the

area is dry before starting the engine.

• Avoid repeated or prolonged contact with skin or

breathing of vapor.

Adding Fuel

WARNING! An adult should fuel this engine. NEVER

allow children to refuel its engine. Gasoline (fuel)

vapors are highly flammable and can explode. Fuel

vapors can spread and be ignited by a spark or flame

many feet away from engine. To prevent injury or

death from fuel fires, follow these instructions:

• DO NOT use leaded fuel.

• Fuel must be fresh and clean. NEVER use fuel left over

from last season or stored for long periods.

• NEVER mix oil with fuel.

• DO NOT use fuel containing Methanol (Wood

Alcohol)

NOTE: Before refueling, allow engine to cool two minutes.

1. Clean around fuel fill before removing cap to fuel.

2. Fill tank until fuel reaches ⁄ inch below the bottom of the

filler neck to allow space for fuel expansion. Be careful not

to overfill.

3. Replace the gasoline cap and tighten securely. Wipe up

spilled fuel before starting engine. If fuel is spilled DO NOT

start engine. Move machine away from area of spillage.

Avoid creating any source of ignition until fuel vapors are

gone.

Upper Limit

Oil Filler

Cap/Dipstick

Figure 3-3

7Section 2 — Set-Up

Controls and Features

Choke (If Equipped)

The choke control is located on the left side of the handle or on

the engine below the engine switch and when activated, closes

the choke plate on the carburetor and aids in starting the engine.

Pull the choke control to activate the choke on the engine. Use of

the choke may not be necessary if the engine is warm or the air

temperature is high.

Primer (If Equipped)

The primer is located on the left side of the

engine, on the front of the air cleaner. Pressing

the primer forces fuel directly into the engine’s

carburetor to aid in starting the engine.

Engine Switch (If Equipped)

The engine switch is located on the engine. Turn the switch “On”

when starting the engine and turn it to “Off” when you want to

shut it down.

Starter Handle

Pull the starter handle to start the engine.

Fuel Shut-Off Valve (If Equipped)

The fuel shut off valve is located on the engine to the right of the

choke. Be sure the valve is on before starting the engine. Turn the

valve off when towing or transporting equipment.

Oil Drain

Removing the oil drain plug will drain the oil from the engine.

The engine is equipped with a side drain, and on select units, you

may also access a bottom drain.

Oil Fill Cap

Remove the oil fill cap to check the oil level and add oil.

Fuel Cap

Remove the fuel cap to add fuel.

NOTE: Some engines may not have the fuel cap installed for

shipping purposes. To install, remove and discard the fuel tank

dust cap labeled “Discard”. Remove the bubble wrap packaging

from around the fuel cap and tighten securely.

Choke†

Valve†

Engine

Switch†

† If Equipped

Oil Drain

Air Cleaner

Oil Fill Cap

Spark Plug

Starter Handle

Fuel Cap

Primer†

Figure 4-1

Operation

Pre-Operation Check

The engine is shipped without gasoline or oil in the engine. See

the Set-Up Section of this manual for instructions on adding oil

and gasoline.

Determine The Starting System

Before starting the engine, you must determine the type of

starting system that is on your engine. Your engine will have one

of the following types:

• Auto-Choke System: This features an automatic choke

that does not have a manual choke or primer.

• Primer System: This features a primer on the engine.

• Manual Choke System: This features a choke either on

the upper handle or on the engine and no primer. Choke

systems located on the engine will feature an engine

switch and may also feature a fuel shut-off valve.

To start your engine, follow the instructions for your type of

starting system.

Note: Equipment may have remote controls. See the equipment

manual for location and operation of remote controls.

Starting the Engine

WARNING: Always keep hands and feet clear of

equipment moving parts. Do not use a pressurized

starting fluid. Vapors are flammable.

Auto-Choke System

1. Standing behind the mower, depress the blade control

handle and hold it against the upper handle. See Figure 5-1.

2. Pull the starter grip lightly until resistance is felt, then pull

rapidly to overcome compression, prevent kickback and

start engine. Repeat if necessary.

IMPORTANT: Do not allow the starter grip to snap back

against the engine. Return it gently to prevent damage to

the starter.

Primer System

1. Push primer 3 times. Wait about two seconds between

each push. See Figure 5-2. In temperature below 50°F,

prime 5 times. After the engine is warmed up, one prime

may be needed for all temperatures.

2. Standing behind the mower, squeeze and hold the blade

control against upper handle.

3. Pull the recoil starter lightly until resistance is felt, then pull

rapidly to overcome compression, prevent kickback, and

start the engine. Repeat if necessary. See Figure 5-2.

IMPORTANT: Do not allow the recoil starter to snap back

against the rope guide.

If engine does not start, it may be necessary to re-prime

the engine.

Figure 5-1

Figure 5-2

Manual Choke System (On the Upper Handle)

1. Pull out the choke knob located on the left side of the upper handle.

See Fig. 5-1.

NOTE: Use of the choke may not be necessary if the engine is warm

or the air temperature is high.

2. Standing behind the mower, squeeze and hold the blade control

against upper handle.

3. Pull the recoil starter lightly until resistance is felt, then pull rapidly to

overcome compression, prevent kickback, and start the engine. See

Fig. 5-1. If engine does not start after ten seconds of repeated pulls,

wait a few minutes and repeat.

NOTE: Do not allow the recoil starter to snap back against the rope

guide. Return it gently to prevent damage to the starter.

4. When engine warms up, push in the choke knob.

10 Section 5— operation

Manual Choke System (On the Engine)

1. If equipped, turn on fuel valve located on the engine. See

Figure 5-3.

2. Pull out the choke knob located on the engine.

NOTE: Use of the choke may not be necessary if the engine

is warm or the air temperature is high.

3. Turn engine switch to on.

4. Pull the starter grip lightly until resistance is felt, then pull

rapidly to overcome compression, prevent kickback and

start engine. If engine does not start after ten seconds of

repeated pulls, wait a few minutes and repeat.

IMPORTANT: Do not allow the starter grip to snap back

against the rope guide. Return it gently to prevent damage

to the starter.

5. When engine warms up, push in the choke knob.

Stopping Engine

1. Release blade control or turn off the engine switch (if

equipped).

Figure 5-3

Engine Maintenance

WARNING: Shut off the engine before performing

any maintenance. To prevent accidental start-up,

disconnect the spark plug boot.

IMPORTANT: If engine must be tipped to transport equipment

or to inspect or remove grass, keep spark plug side of engine

up. Transporting or tipping engine spark plug down may cause

smoking, hard starting, spark plug fouling, or oil saturation of air

cleaner.

Periodic inspection and adjustment of the engine is essential if

high level performance is to be maintained. Regular maintenance

will also ensure a long service life. The required service intervals

and the kind of maintenance to be performed are described

in the table below. Follow the hourly or calendar intervals,

whichever occur first. More frequent service is required when

operating in adverse conditions.

WARNING: If the engine has been running, the

muffler will be very hot. Be careful not to touch the

muffler.

† Service more frequently when used in dusty areas.

†† Every season or 25 hours if operating under heavy load or high ambient temperature.

Maintenance Schedule

First 5 Hours

Each Use or

Every 5 Hrs.

Every Season

or 25 Hours

Ever y Seas on

or 50 Hours

Every Season

or 100 Hours

Service

Dates

Check Engine Oil Level

Change Engine Oil ††

P P

Check Air Cleaner

Service Air Cleaner †

Check Spark Plug

Replace Spark Plug

Clean Engine Shroud

Clean around muﬄer

Replace Fuel Filter

12 Section 6 — Maintenance

IMPORTANT: Used motor oil may cause skin cancer if repeatedly

left in contact with the skin for prolonged periods. Although this

is unlikely unless you handle used oil on a daily basis, it is still

advisable to thoroughly wash your hands with soap and water as

soon as possible after handling used oil.

NOTE: Please dispose of used motor oil in a manner that is

compatible with the environment. We suggest you take it in a

sealed container to your local service station for reclamation. Do

not throw it in the trash or pour it on the ground.

Air Filter Service

Paper filters cannot be cleaned and must be replaced once a year

or every 100 operating hours; more often if used in extremely

dusty conditions.

WARNING: Never use gasoline or low flash point

solvents for cleaning the air filter element. A fire or

explosion could result.

IMPORTANT: Never run the engine without the air filter. Rapid

engine wear will result.

NOTE: Your engine may be equipped with either a dual element

rectangle paper filter with foam pre-filter or a single element

oval foam filter. The dual element type has a long rectangular

shaped air filter cover with a thumb screw towards the rear of

the engine to access the air filter elements. The single element

type has a short rectangular shaped air filter cover with a primer

on the air filter base at the front of the engine. Follow the

appropriate instructions below for the engine on your unit.

Dual Element Air Filter

1. Remove the thumb screw and the air filter cover. Remove

the foam and paper elements. See Fig. 6-2. Replace paper

element when dirty or damaged. Clean foam element or

replace when damaged.

Oil Service

• Check oil level regularly.

• Be sure correct oil level is maintained. Check every five

hours or daily before starting engine. See oil checking

procedure in the Operation section.

Oil Change

IMPORTANT: Be sure to check engine on a level surface with the

engine stopped. Drain the oil while the engine is still warm to

assure rapid and complete draining.

1. Remove all fuel from tank by running engine until it stops

from lack of fuel.

2. Remove drain plug and allow oil to drain into a suitable

container. See Fig. 6-1.

WARNING: Before tipping engine or equipment to

drain oil, drain fuel from tank by running engine

until fuel tank is empty.

3. Reinstall the drain plug and tighten it securely.

4. Refill with the recommended oil and check the oil level.

Refer to the Set-Up Section and follow the appropriate

instructions for a short or extended dipstick.

5. Reinstall the oil fill cap securely.

Figure 6-1

Figure 6-2

Paper Element

Thumb

Screw

Foam Element

Oil Fill Cap

Drain

Plug

Drain Plug (If

Accessible)

* Extended

Dipstick Shown

13Section 6 — Maintenance

2. Visually inspect the spark plug. Discard the spark plug

if there is apparent wear, or if the insulator is cracked or

chipped. Clean the spark plug with a wire brush if it is to be

reused.

3. Measure the plug gap with a feeler gauge. Correct as

necessary by bending side electrode. See Fig. 6-5. The gap

should be set to 0.030 in.

4. Check that the spark plug washer is in good condition

and thread the spark plug in by hand to prevent cross-

threading.

5. After the spark plug is seated, tighten with a spark plug

wrench to compress the washer.

Electrode

0.030 in.

Figure 6-5

2. To clean foam element, remove it from the air filter cover

and wash in a mild liquid detergent and water. Squeeze

or press the foam element to rinse out dirt and water. Do

not twist; this could damage or tear the foam element.

Allow to dry thoroughly before using. DO NOT oil the foam

element.

Single Element Air Filter

1. Remove the air filter cover by squeezing the front and

back sides to release the tab at the front of the air filter

cover. See Fig. 6-3. Clean foam element or replace when

damaged.

2. To clean foam element, remove it from the air filter base

and wash in mild liquid detergent and water. Squeeze or

press the foam element to rinse out dirt and water. Do not

twist, this could damage or tear the foam element. Allow to

dry thoroughly before using. OIL the foam element with a

light engine oil.

Spark Plug Service

WARNING: DO NOT check for spark with spark

plug removed. DO NOT crank engine with spark

plug removed.

To ensure proper engine operation, the spark plug must be

properly gapped and free of deposits.

1. Remove the spark plug boot and use a spark plug wrench

to remove the plug. See Fig. 6-4.

WARNING: If the engine has been running, the

muffler will be very hot. Be careful not to touch the

muffler.

Spark Plug

Spark Plug Boot

Figure 6-4

Figure 6-3

Tab

Paper

Element

14 Section 6 — Maintenance

NOTE: When installing a new spark plug, tighten 1/2 turn

after the spark plug seats to compress the washer. When

reinstalling a used spark plug, tighten 1/8-1/4 turn after the

spark plug seats to compress the washer.

IMPORTANT: The spark plug must be securely tightened.

An improperly tightened spark plug can become very hot

and may damage the engine.

Fuel Filter Service

The fuel filter cannot be cleaned and must be replaced once a

year or every 100 operating hours; more often if run with old

gasoline.

1. Remove all fuel from tank by running engine until it stops

from lack of fuel.

2. Remove hose clamp from fuel line and remove fuel line

from tank outlet. See Fig. 6-6.

3. Pull out old fuel filter from tank outlet. Replace when dirty

or damaged.

4. Grasp new fuel filter from shouldered end and insert it

completely to the shoulder into the tank outlet. See Fig. 6-6

inset.

5. Replace fuel line and hose clamp.

Clean Engine

If the engine has been running, allow it to cool for at least half

an hour before cleaning. Periodically remove dirt build-up from

engine. Clean finger guard and around muffler. Clean with a

brush or compressed air.

IMPORTANT: Do not spray engine with water to clean because

water could contaminate fuel. Using a garden hose or pressure

washing equipment can also force water into the air cleaner or

muffler opening. Water in the air cleaner will soak the paper

element, and water that passes through the element or muffler

can enter the cylinder, causing damage.

WARNING: Accumulation of debris around muffler

could cause a fire. Inspect and clean before every

use.

Storage

CAUTION: Failure to use a fuel stabilizing additive

or completely run the engine until it’s out of fuel

before off-season storage may result in damage to

your engine’s carburetor. Subsequent damage

would not be covered under the manufacturer’s

warranty.

Engines stored between 30 and 90 days need to be treated with

a gasoline stabilizer such as STA-BIL® and engines stored over 90

days need to be drained of fuel to prevent deterioration and gum

from forming in fuel system or on essential carburetor parts. If

the gasoline in your engine deteriorates during storage, you may

need to have the carburetor, and other fuel system components,

serviced or replaced.

1. Remove all fuel from tank by running engine until it stops

from lack of fuel.

WARNING: Never leave engine unattended while

running.

2. Change oil. See Oil Change section.

3. Remove spark plug and pour about 1/2 an ounce of engine

oil into cylinder. Replace spark plug and crank slowly to

distribute oil.

4. Clean debris from around engine, under finger guard, and

under, around and behind muffler. Touch up any damaged

paint, and coat other areas that may rust with a light film

of oil.

5. Store in a clean, dry and well ventilated area away from any

appliance that operates with a flame or pilot light, such

as a furnace, water heater, or clothes dryer. Also avoid any

area with a spark producing electric motor, or where power

tools are operated.

6. If possible, also avoid storage areas with high humidity,

because that promotes rust and corrosion.

7. Keep the engine level in storage. Tilting can cause fuel or

oil leakage.

Removing From Storage

1. Check your engine as described in the Pre-Operation Check

section of this manual.

2. If the fuel was drained during storage preparation, fill the

tank with fresh gasoline. If you keep a container of gasoline

for refueling, make certain it contains only fresh fuel.

Gasoline oxidizes and deteriorates over time, causing hard

starting.

3. If the cylinder was coated with oil during storage

preparation, the engine will smoke briefly at startup. This

is normal.

Fuel Filter

Figure 6-6

Tro ubleshooting

Problem Cause Remedy

Engine Fails to start

1. Blade control disengaged.

2. Spark plug boot disconnected.

3. Fuel tank empty or stale fuel.

4. Engine not primed (if equipped with primer).

5. Faulty spark plug.

6. Blocked fuel line.

7. Engine flooded.

8. Fuel valve (if equipped) closed.

9. Engine not choked (if equipped with choke).

10. Burnt fuse. (Electric Start Only).

1. Engage blade control.

2. Connect wire to spark boot.

3. Fill tank with clean, fresh gasoline.

4. Prime engine as instructed in the Operation section.

5. Clean, adjust gap, or replace.

6. Clean fuel line.

7. Wait a few minutes to restart, but do not prime.

8. Open fuel valve. See engine manual.

9. Choke engine. See engine manual.

10. Replace fuse. (See Maintenance Section).

Engine runs erratic

1. Spark plug boot loose.

2. Blocked fuel line or stale fuel.

3. Vent in gas cap plugged.

4. Water or dirt in fuel system.

5. Dirty air cleaner.

6. Unit running with CHOKE applied or in the

“ON” position (if equipped).

1. Connect and tighten spark plug boot.

2. Clean fuel line; fill tank with clean, fresh gasoline.

3. Clear vent.

4. Drain fuel tank. Refill with fresh fuel.

5. Refer to engine manual.

6. Put CHOKE in the “OFF” position..

Engine overheats

1. Engine oil level low.

2. Air flow restricted.

1. Fill crankcase with proper oil.

2. Clean area around and on top of engine.

Occasional skips

(hesitates) at high speed

1. Spark plug gap too close. 1. Adjust gap to .030”. Refer to engine manual.

Idles poorly

1. Spark plug fouled, faulty, or gap too wide.

2. Dirty air cleaner.

1. Reset gap to .030” or replace spark plug.

2. Refer to engine manual.

Replacement Parts

NOTE: Download a complete Parts Manual, refer to customer support on page 2. Be sure to have your model number and serial

number ready. Refer to page 2 for more information regarding locating your model and serial numbers.

Component Part Number and Description

951-10292 Spark Plug

951-10732 Air Cleaner (Oval)

951-10298 Air Cleaner Kit (Square)

951-12738 Fuel Cap Assembly (Phase 3 Engine)

951-10300 Fuel Cap Assembly (Phase 2 Engine)

951-10358A Fuel Filter

FEDERAL and/or CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS

MTD Consumer Group Inc, the United States Environmental Protection Agency (EPA), and, for those products certified for sale in the

state of California, the California Air Resources Board (CARB) are pleased to explain the emission (evaporative and/or exhaust) control

system (ECS) warranty on your outdoor 2006 and later small off-road spark-ignited engine and equipment (outdoor equipment

engine) In California, new outdoor equipment engines must be designed, built and equipped to meet the State’s stringent anti-smog

standards (in other states, 1997 and later model year equipment must be designed, built, and equipped to meet the U.S. EPA small

off-road, spark ignition engine regulations. MTD Consumer Group Inc must warrant the ECS on your outdoor equipment engine for

the period of time listed below provided there has been no abuse, neglect or improper maintenance of outdoor equipment engine.

Your ECS may include parts such as the carburetor, fuel-injection system, the ignition system, catalytic converter, fuel tanks, fuel lines,

fuel caps, valves, canisters, filters, vapor hoses, clamps, connectors, and other associated emission-related components.

Where a warrantable condition exists, MTD Consumer Group Inc will repair your outdoor equipment engine at no cost to you

including diagnosis, parts and labor.

MANUFACTURER’S WARRANTY COVERAGE:

This emission control system is warranted for two years. If any emission-related part on your outdoor equipment engine is defective,

the part will be repaired or replaced by MTD CONSUMER GROUP INC.

OWNER’S WARRANTY RESPONSIBILITIES:

As the outdoor equipment engine owner, you are responsible for performance of the required maintenance listed in your owner’s

manual. MTD Consumer Group Inc recommends that you retain all receipts covering maintenance on your outdoor equipment

engine, but MTD Consumer Group Inc cannot deny warranty solely for the lack of receipts.

As the outdoor equipment engine owner, you should however be aware that MTD Consumer Group Inc may deny you warranty

coverage if your outdoor equipment engine or a part has failed due to abuse, neglect, or improper maintenance or unapproved

modifications.

You are responsible for presenting your outdoor equipment engine to MTD Consumer Group Inc’s distribution center or service center

as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If

you have a question regarding your warranty coverage, you should contact the MTD Consumer Group Inc Service Department.

In the U.S.A.: MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, or call 1-800-800-7310 or 1-330-220-4683 or

log on to our Web site at www.mtdproducts.com.

In Canada: MTD Products Limited, Kitchener, ON N2G 4J1, or call 1-800-668-1238 or log on to our Web site at www.mtdcanada.

com.

GENERAL EMISSIONS WARRANTY COVERAGE:

MTD Consumer Group Inc warrants to the ultimate purchaser and each subsequent purchaser that the outdoor equipment engine is:

Designed, built and equipped so as to conform with all applicable regulations; and free from defects in materials and workmanship

that cause the failure of a warranted part to be identical in all material respects to that part as described in MTD Consumer Group Inc’s

application for certification.

The warranty period begins on the date the outdoor equipment engine is delivered to an ultimate purchaser or first placed into

service. The warranty period is two years.

Subject to certain conditions and exclusions as stated below, the warranty on emission-related parts is as follows:

1. Any warranted part that is not scheduled for replacement as required maintenance in the written instructions supplied, is war-

ranted for the warranty period stated above. If the part fails during the period of warranty coverage, the part will be repaired or

replaced by MTD Consumer Group Inc according to subsection (4) below. Any such part repaired or replaced under warranty will

be warranted for the remainder of the period.

2. Any warranted part that is scheduled only for regular inspection in the written instructions supplied is warranted for the warranty

period stated above. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period.

3. Any warranted part that is scheduled for replacement as required maintenance in the written instructions supplied is warranted

for the period of time before the first scheduled replacement date for that part. If the part fails before the first scheduled replace-

ment, the part will be repaired or replaced by MTD Consumer Group Inc according to subsection (4) below. Any such part repaired

or replaced under warranty will be warranted for the remainder of the period prior to the first scheduled replacement point for the

part.

4. Repair or replacement of any warranted part under the warranty provisions herein must be performed at a warranty station at no

charge to the owner.

5. Notwithstanding the provisions herein, warranty services or repairs will be provided at all of our distribution centers that are

franchised to service the subject engines or equipment.

GDOC-100223CN Rev. A

6. The outdoor equipment engine owner will not be charged for diagnostic labor that is directly associated with diagnosis of a defec-

tive, emission-related warranted part, provided that such diagnostic work is performed at a warranty station.

7. MTD Consumer Group Inc is liable for damages to other engine or equipment components proximately caused by a failure under

warranty of any warranted part.

8. Throughout the off-road engine and equipment warranty period stated above, MTD Consumer Group Inc will maintain a supply of

warranted parts sufficient to meet the expected demand for such parts.

9. Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without

charge to the owner. Such use will not reduce the warranty obligations of MTD Consumer Group Inc.

10. Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted

add-on or modified parts by the ultimate purchaser will be grounds for disallowing a warranty claims. MTD Consumer Group Inc

will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.

WARRANTED PARTS:

The repair or replacement of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty

coverage if MTD Consumer Group Inc demonstrates that the outdoor equipment engine has been abused, neglected, or improperly

maintained, and that such abuse, neglect, or improper maintenance was the direct cause of the need for repair or replacement of the

part. That notwithstanding, any adjustment of a component that has a factory installed, and properly operating, adjustment limiting

device is still eligible for warranty coverage. Further, the coverage under this warranty extends only to parts that were present on the

off-road engine and equipment purchased.

The following emission warranty parts are covered (if applicable):

(1) Fuel Metering System

• Cold start enrichment system (soft choke)

• Carburetor and internal parts (or fuel injection system)

• Fuel pump

• Fuel tank

(2) Air Induction System

• Air cleaner

• Intake manifold

(3) Ignition System

• Spark plug(s)

• Magneto ignition system

(4) Exhaust System

• Catalytic converter

• SAI (Reed valve)

(5) Miscellaneous Items Used in Above System

• Vacuum, temperature, position, time sensitive valves and switches

• Connectors and assemblies

(6) Evaporative Control

• Fuel hose

• Fuel hose clamps

• Tethered fuel cap

• Carbon canister

• Vapor lines

NOTE: If you require warranty service in Canada and your product was sold by MTD Products Limited within Canada to the retailer

you purchased it from in Canada then the MTD Consumer Group Inc portion of this warranty will be honored by MTD Products

Limited in Canada.

GDOC-100223CN Rev. A

5. Nonobstant les termes énoncés, les services ou réparations sous garantie doivent être effectués dans tous les centres de distribu-

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6. Les diagnostics permettant d’établir qu’une pièce garantie est défectueuse doivent être effectués sans frais pour le propriétaire du

moteur de l’équipement motorisé, à condition d’être réalisés par une station technique autorisée à offrir les services sous garantie.

 .5%$POTVNFS(SPVQ*ODFTUUFOVFSFTQPOTBCMFEFTEÏHÉUTBVYBVUSFTQJÒDFTEVNPUFVSPVEFMÏRVJQFNFOUTVTDFQUJCMFTEBWPJS

été causés par la panne sous garantie d’une pièce garantie.

8. .5%$POTVNFS(SPVQ*ODTFOHBHFËDPOTFSWFSVOTUPDLEFQJÒDFTHBSBOUJFTTVGGJTBOUQPVSTBUJTGBJSFMBEFNBOEFQSÏWVFQPVSDFT

pièces pendant la période de garantie de la tondeuse à gazon stipulée ci-dessus.

 Toute pièce de remplacement peut être utilisée pour l’entretien ou la réparation sous garantie et doit être fournie gratuitement au

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10. Les pièces complémentaires ou modifiées qui ne sont pas exemptées par le « Air Resources Board » ne peuvent toutefois pas

être utilisées. L’emploi de toute pièce complémentaire ou modifiée non exemptée sera suffisant pour rejeter une demande

EBQQMJDBUJPOEFMBHBSBOUJFFOWFSUVEFDFUBSUJDMF.5%$POTVNFS(SPVQ*ODOFTFSBQBTUFOVFFOWFSUVEFDFUBSUJDMFEFHBSBOUJS

les pièces garanties si leur défaillance a été causée par l’utilisation d’une pièce complémentaire ou modifiée non exemptée.

PIÈCES GARANTIES

La réparation ou le remplacement de toute pièce garantie, admissible à la garantie, peut être exclus(e) de celle-ci si MTD Consumer

(SPVQ*ODQFVUQSPVWFSRVFMFNPUFVSEFMÏRVJQFNFOUNPUPSJTÏBGBJUMPCKFUEBCVTEFOÏHMJHFODFEVOFOUSFUJFOJODPSSFDUPVTJ

cet abus, cette négligence ou l’entretien incorrect a été causé(e) de façon directe, par la réparation ou le remplacement de la pièce.

Nonobstant cette situation, tout ajustement d’une pièce équipée d’un dispositif de limitation correctement installé et en bon état de

fonctionnement, demeure admissible à la garantie. De plus, cette garantie se prolonge seulement aux pièces qui étaient présentes sur

le moteur hors route et sur l’équipement àcheté.

(1) Système de dosage du carburant

t Système d’enrichissement du carburant pour démarrages à froid

t Carburateur et pièces internes (ou le système d’injection)

t Pompe à carburant

t Réservoir à carburant

(2) Système d’admission de l’air

t Filtre à air

t Tubulure d’admission

(3) Système d’allumage

t Bougie(s)

t Système d’allumage à magnéto

4ZTUÒNFEÏDIBQQFNFOU

t Pot catalytique

t Soupape d’injection d’air secondaire pulsé (Soupape Reed)

(5) Divers articles utilisés dans le système ci-dessus

t Soupapes de dépression, thermocontacts, soupapes de positionnement et à action minutée et interrupteurs

t Raccords et ensembles

(6) Système d’évaporation

t Canalisation d’essence

t Colliers pour canalisations d’essence

t Bouchon d’essence attaché

t Cartouche à charbon actif

t Canalisations pour les vapeurs

REMARQUE: .5%1SPEVDUT-JNJUFEIPOPSFSBMBQPSUJPOEFDFUUFHBSBOUJFPGGFSUFQBS.5%$POTVNFS(SPVQ*ODTJWPVTBWF[CFTPJO

d’un service couvert par la garantie au Canada et si votre produit a été vendu par MTD Products Limited au Canada au concession-

naire chez lequel vous l’avez acheté au Canada.

Déclaration de garantie du système antipollution en Californie

Droits et obligations du propriétaire en vertu de la garantie

C’est avec plaisir que California Air Resources Board (CARB), la United States Environmental Protection Agency et MTD Consumer

(SPVQ*OD$POTVNFS(SPVQ*ODQSÏTFOUFOUMBHBSBOUJFEVTZTUÒNFBOUJQPMMVUJPOJOTUBMMÏTVSWPTNPUFVSFUÏRVJQFNFOUIPSTSPVUF

construits en 2008. En Californie, les moteurs et l’équipement hors route neufs doivent être conçus, construits et équipés conformé-

ment aux normes antipollution strictes de l’état. (Ailleurs aux Etats-Unis, les moteurs et l’équipement hors route neufs à allumage

QBSÏUJODFMMFEFTBOOÏFTFUVMUÏSJFVSFTEPJWFOUSFTQFDUFSEFTOPSNFTTJNJMBJSFTÏUBCMJFTQBS64&1".5%$POTVNFS(SPVQ*OD

$POTVNFS(SPVQ*ODEPJUHBSBOUJSMFTZTUÒNFBOUJQPMMVUJPOEVNPUFVSQPVSMBEVSÏFTUJQVMÏFDJEFTTPVTËDPOEJUJPORVFMFNPUFVSFU

l’équipement hors route n’aient pas fait l’objet d’abus, de négligence ou d’un entretien incorrect.

Le système antipollution peut inclure les pièces suivantes : carburateur, système d’injection du carburant, système d’allumage,

pot catalytique, réservoirs, canalisations et bouchons d’essence, soupapes, cartouches absorbantes des vapeurs d’essence, filtres,

canalisations, colliers, raccords et autres pièces annexes du système antipollution.

MTD Consumer Group Inc s’engage à réparer gratuitement votre tondeuse à gazon, y compris les frais de diagnostic, les

pièces et la main d’œuvre, en cas de problème couvert par la garantie.

GARANTIE DU FABRICANT

Le système antipollution est garanti pour une période de deux ans. Toute pièce annexe du système antipollution du moteur jugée

EÏGFDUVFVTFTFSBSÏQBSÏFPVSFNQMBDÏFQBS.5%$POTVNFS(SPVQ*OD

RESPONSABILITÉS DU PROPRIÉTAIRE

Le propriétaire du moteur de l’équipement motorisé est tenu de respecter le calendrier des entretiens requis énoncés dans la

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de l’absence de reçus.

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garantie si le moteur de l’équipement motorisé ou l’une quelconque de ses pièces a fait l’objet d’abus, de négligence, d’un entretien

incorrect ou de modifications non approuvées.

Le propriétaire est tenu de présenter le moteur de l’équipement motorisé à une station technique agréée dès l’apparition d’un

problème. Les réparations sous garantie devraient être effectuées dans un délai raisonnable ne dépassant pas 30 jours. Pour toute

question concernant vos droits et responsabilités en vertu de cette garantie, adressez-vous au Services technique de MTD Consumer

(SPVQ*OD

Aux États-Unis :.5%--$10#PY$MFWFMBOE0IJPPVBQQFMF[MFPVMF7PVT

pouvez aussi visiter notre site web au www.mtdproducts.com

Au Canada :.5%1SPEVDUT-JNJUFE,JUDIFOFS0OUBSJP/(+PVBQQFMF[MFPVWJTJUF[OPUSFTJUFXFCBV

www.mtdcanada.com

PROTECTION OFFERTE PAR LA GARANTIE

.5%$POTVNFS(SPVQ*ODHBSBOUJUËMBDIFUFVSBVEÏUBJMJOJUJBMFUËDIBRVFBDIFUFVSTVDDFTTJGRVFMBUPOEFVTFËHB[POBÏUÏDPOÎVF

construite et équipée conformément à tous les règlements applicables ; qu’elle est exempte de tout vice de matière et de fabrication

susceptible de causer la défaillance d’une pièce garantie, en tous points

JEFOUJRVFËMBQJÒDFEÏDSJUFEBOTMBEFNBOEFEFDFSUJGJDBUJPOQBS.5%$POTVNFS(SPVQ*OD

La période de garantie commence le jour où la tondeuse à gazon est livrée à l’acheteur au détail initial ou à sa mise en service initiale.

Sous réserve des conditions et exclusions ci-dessous, la garantie des pièces du système antipollution sera interprétée comme suit :

1. Toute pièce garantie, pour laquelle les instructions écrites fournies ne prévoient pas le remplacement dans le calendrier des entre-

tiens requis, est garantie pour la période de garantie spécifiée ci-dessus. Si une telle pièce tombe en panne pendant la période de

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réparée ou remplacée en vertu de la garantie est garantie pour le solde de la période de garantie.

2. Toute pièce garantie, pour laquelle les instructions écrites prévoient seulement une inspection régulière, est garantie pour la

période de garantie spécifiée dans le paragraphe ci-dessus Toute pièce réparée ou remplacée en vertu de la garantie est garantie

pour le solde de la période de garantie.

3. Toute pièce garantie, pour laquelle les instructions prévoient le remplacement dans le cadre d’un entretien requis, est garantie

pour la période précédant le premier remplacement prévu. Si la pièce tombe en panne avant le premier intervalle de remplace-

NFOUQSÏWVMBQJÒDFTFSBSÏQBSÏFPVSFNQMBDÏFQBS.5%$POTVNFS(SPVQ*ODDPOGPSNÏNFOUBVQBSBHSBQIFDJEFTTPVT

Toute pièce réparée ou remplacée sous garantie est garantie pour le solde de la période de garantie avant le premier intervalle de

remplacement prévu de la pièce.

 La réparation ou le remplacement de toute pièce garantie en vertu de la garantie énoncée dans cet article doit être effectué(e) par

une station technique agréée, sans frais pour le propriétaire.

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MTD 139 cc OHV Manuel utilisateur

Marque: MTD

Modèle: 139 cc OHV

Catégorie: Tondeuses à gazon

Taper: Manuel utilisateur

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MTD 139 cc OHV Manuel utilisateur

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