MTD 139 cc OHV Manuel utilisateur

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
1
2
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
2
3
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 operators 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
20
30
40
20w40, 20w50
15w40, 15w50
10w40
10w30
-10º
20º 40º 60º 80º 100º
10º 20º 30º 40º
-20º
(ºC)
(ºF)
1
2
Figure 3-2
Set-Up
3
6
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
4
8
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
5
9
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.
2
1
Figure 5-1
3
2
3
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).
1
2
3
Figure 5-3
Engine Maintenance
6
11
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
P
Change Engine Oil †
P P
Check Air Cleaner
P
Service Air Cleaner †
P
Check Spark Plug
P
Replace Spark Plug
P
Clean Engine Shroud
P
Clean around muffler
P
Replace Fuel Filter
P
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 its out of fuel
before off-season storage may result in damage to
your engine’s carburetor. Subsequent damage
would not be covered under the manufacturers
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
7
15
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
8
16
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
17
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 owners
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.
18
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.
18
GDOC-100223CN Rev. A
5. Nonobstant les termes énoncés, les services ou réparations sous garantie doivent être effectués dans tous les centres de distribu-
UJPODPODFTTJPOOBJSFT.5%$POTVNFS(SPVQ*ODBVUPSJTÏTËFOUSFUFOJSMFTNPUFVSTPVMÏRVJQFNFOUFORVFTUJPO
6. Les diagnostics permettant détablir qu’une pièce garantie est défectueuse doivent être effectués sans frais pour le proprtaire du
moteur de léquipement motorisé, à condition d’être réalisés par une station technique autorisée à offrir les services sous garantie.
 .5%$POTVNFS(SPVQ*ODFTUUFOVFSFTQPOTBCMFEFTEÏHÉUTBVYBVUSFTQJÒDFTEVNPUFVSPVEFMÏRVJQFNFOUTVTDFQUJCMFTEBWPJS
été causés par la panne sous garantie dune pièce garantie.
8. .5%$POTVNFS(SPVQ*ODTFOHBHFËDPOTFSWFSVOTUPDLEFQJÒDFTHBSBOUJFTTVGGJTBOUQPVSTBUJTGBJSFMBEFNBOEFQSÏWVFQPVSDFT
pièces pendant la période de garantie de la tondeuse à gazon stipulée ci-dessus.
 Toute pièce de remplacement peut être utilisée pour l’entretien ou la réparation sous garantie et doit être fournie gratuitement au
QSPQSJÏUBJSF$FDJOFMJNJUFQBTMFTPCMJHBUJPOTEFHBSBOUJFEF.5%$POTVNFS(SPVQ*OD
10. Les pièces complémentaires ou modifiées qui ne sont pas exemptées par le « Air Resources Board » ne peuvent toutefois pas
être utilisées. L’emploi de toute pièce complémentaire ou modifiée non exemptée sera suffisant pour rejeter une demande
EBQQMJDBUJPOEFMBHBSBOUJFFOWFSUVEFDFUBSUJDMF.5%$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 dune 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 lentretien incorrect a été causé(e) de façon directe, par la réparation ou le remplacement de la pièce.
Nonobstant cette situation, tout ajustement dune pièce équipée dun 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 dadmission
(3) Système dallumage
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%$POTVNFS(SPVQ*ODTJWPVTBWF[CFTPJO
d’un service couvert par la garantie au Canada et si votre produit a été vendu par MTD Products Limited au Canada au concession-
naire chez lequel vous l’avez acheté au Canada.
17
Déclaration de garantie du système antipollution en Californie
Droits et obligations du propriétaire en vertu de la garantie
C’est avec plaisir que California Air Resources Board (CARB), la United States Environmental Protection Agency et MTD Consumer
(SPVQ*OD$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
$POTVNFS(SPVQ*ODEPJUHBSBOUJSMFTZTUÒNFBOUJQPMMVUJPOEVNPUFVSQPVSMBEVSÏFTUJQVMÏFDJEFTTPVTËDPOEJUJPORVFMFNPUFVSFU
l’équipement hors route n’aient pas fait l’objet d’abus, de négligence ou d’un entretien incorrect.
Le système antipollution peut inclure les pièces suivantes : carburateur, système d’injection du carburant, système dallumage,
pot catalytique, réservoirs, canalisations et bouchons dessence, soupapes, cartouches absorbantes des vapeurs d’essence, filtres,
canalisations, colliers, raccords et autres pièces annexes du système antipollution.
MTD Consumer Group Inc s’engage à réparer gratuitement votre tondeuse à gazon, y compris les frais de diagnostic, les
pièces et la main d’œuvre, en cas de problème couvert par la garantie.
GARANTIE DU FABRICANT
Le système antipollution est garanti pour une période de deux ans. Toute pièce annexe du système antipollution du moteur jugée
EÏGFDUVFVTFTFSBSÏQBSÏFPVSFNQMBDÏFQBS.5%$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
OPUJDFEVUJMJTBUJPO.5%$POTVNFS(SPVQ*ODSFDPNNBOEFEFDPOTFSWFSUPVTMFTSFÎVTTFSBQQPSUBOUËMFOUSFUJFOEVNPUFVSEF
MÏRVJQFNFOUNPUPSJTÏ5PVUFGPJT.5%$POTVNFS(SPVQ*ODOFQFVUQBTSFGVTFSMFTSÏDMBNBUJPOTTPVTHBSBOUJFVOJRVFNFOUËDBVTF
de l’absence de reçus.
-FQSPQSJÏUBJSFEVNPUFVSEFMÏRVJQFNFOUNPUPSJTÏEPJUUPVUFGPJTTBWPJSRVF.5%$POTVNFS(SPVQ*ODQFVUSFGVTFSEIPOPSFSMB
garantie si le moteur de l’équipement motorisé ou l’une quelconque de ses pièces a fait l’objet d’abus, de négligence, d’un entretien
incorrect ou de modifications non approuvées.
Le propriétaire est tenu de présenter le moteur de l’équipement motorisé à une station technique agréée dès l’apparition d’un
problème. Les réparations sous garantie devraient être effectuées dans un délai raisonnable ne dépassant pas 30 jours. Pour toute
question concernant vos droits et responsabilités en vertu de cette garantie, adressez-vous au Services technique de MTD Consumer
(SPVQ*OD
Aux États-Unis :.5%--$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%$POTVNFS(SPVQ*OD
La période de garantie commence le jour où la tondeuse à gazon est livrée à l’acheteur au détail initial ou à sa mise en service initiale.
Sous réserve des conditions et exclusions ci-dessous, la garantie des pièces du système antipollution sera interprétée comme suit :
1. Toute pièce garantie, pour laquelle les instructions écrites fournies ne prévoient pas le remplacement dans le calendrier des entre-
tiens requis, est garantie pour la période de garantie spécifiée ci-dessus. Si une telle pièce tombe en panne pendant la période de
HBSBOUJFFMMFTFSBSÏQBSÏFPVSFNQMBDÏFQBS.5%$POTVNFS(SPVQ*ODDPOGPSNÏNFOUBVQBSBHSBQIFDJEFTTPVT5PVUFQJÒDF
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

Catégorie
Tondeuses à gazon
Taper
Manuel utilisateur

dans d''autres langues