PowerSmart PSM2521SR Manuel utilisateur

INSTRUCTION MANUAL

EN 21" 3-in-1 GAS SELF PROPELLED LAWN MOWER

FR 21 POUCES 3-in-1 Tondeuse autopropulsée de gaz

ES 21" 3-en-1 CORTADORA DE CÉSPED AUTOPRO PULSADO A GASOLIN

Model # PSM2521SR

Have product questions or need technical support? Please feel free to contact us!

Website: www.Amerisuninc.com

www.powersmartusa.com

Toll free: 1-800-791-9458 Mon-Fri 9-5 EST

Email: [email protected]

2

3

CONTENTS

Technical data…...………………………………………………………... 3

Introduction………………………………………………………………. 4

Safety information…….………………………………………………... 4

General safety procedures ……....……………………………………… 5

Important safety instructions……………………………………………. 6

Warning label instructions…………………………………….…………….8

Knowing your lawn mower……………………….……………………… 10

Lawn mower preparation………………………………………………... 11

Operation……………………....………………………………………… 14

Maintenance……………………………………………………………... 18

Storage……………………………………………………………………. 21

Troubleshooting…………………………………………………………. 21

Exploded view & parts list……………………………………………… 22

Warranty………………………………………………………………… 26

TECHNICAL DATA

21" 3-in-1 Gas Self Propelled Lawn Mower Model # PSM2521SR

Engine type: 4 Stroke, OHV, single cylinder with forced air-cooling system

Displacement: 170cc

Fuel tank capacity: 0.21 Gallon

Oil capacity: 16.9 fl.oz

Cutting width: 20.5 inch

Cutting height: 1.18 – 3 inch

Height adjustment: 5 Position

Drive type: Self Propelled

Grass catcher capacity: 1.4 Bushels

Wheel: Front: 7 inch / Rear: 8 inch

Package dimensions (L x W x H): 33.3 x 22.6 x 16 inches

Weight: 67 lb.

EN

4

INTRODUCTION

Thank You for Purchasing a PowerSmart®Product. This manual provides information regarding the

safe operation and maintenance of this product. Every effort has been made to ensure the accuracy of

the information in this manual. PowerSmart®reserves the right to change this product and

specifications at any time without prior notice.

Please keep this manual available to all users during the entire life of the lawn mower.

This manual contains special messages to bring attention to potential safety concerns,

lawn mower damage as well as helpful operating and servicing information. Please read

all the information carefully to avoid injury and machine damage.

QUESTIONS? PROBLEMS?

Please contact our Customer Service Dept. with any questions and/or comments, either by Email:

[email protected], or Toll Free at (800) 791-9458. We are available Mon-Fri 9am-5pm EST

to help solve any issues that you might encounter.

NOTICE REGARDING EMISSIONS

Engines that are certified to comply with U.S. 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: (EM) Engine Modifications and (TWC) Three-Way Catalyst (if so

equipped).

SAFETY INFORMATION

Before operating this lawn mower, read and observe all warnings, cautions, and instructions on the

lawn mower and in this Owner’s Manual.

NOTE: The following safety information is not meant to cover all possible conditions and situations

that may occur. Read the entire Owner’s Manual for safety and operating instructions. Failure to

follow instructions and safety information could result in serious injury or death.

This safety alert symbol is used to identify safety information about hazards that can result in personal

injury.

A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to

indicate the likelihood and the potential severity of injury. In addition, a hazard symbol

may be used to represent the type of hazard.

DANGER indicates a hazard, which, if not avoided, will result in death or serious injury.

WARNING indicates a hazard, which, if not avoided, could result in death or serious injury.

CAUTION indicates a hazard, which, if not avoided, might result in minor or moderate injury.

CAUTION when used without the alert symbol, indicates a situation that could result in damage to

the engine.

5

GENERAL SAFETY PROCEDURES

For any questions regarding the hazard and safety notices listed in this manual or on the product,

please call (800) 791-9458 Mon-Fri 9-5 EST before using the engine.

DANGER: CARBON MONOXIDE

Using an engine indoors CAN KILL YOU IN MINUTES. Engine exhaust contains carbon

monoxide (CO). This is a poison gas you cannot see or smell. If you can smell the engine exhaust, you

are breathing CO. But even if you cannot smell the exhaust, you could be breathing CO.

NEVER use an engine inside homes, garages, crawlspaces, or other partly enclosed areas. Deadly

levels of carbon monoxide can build up in these areas. Using a fan, or opening windows and/or doors

will NOT properly vent CO nor supply adequate fresh air. ONLY use an engine outside and far away

from windows, doors, and vents. These openings can pull in engine exhaust.

Even if you use an engine correctly, CO may leak into the home. ALWAYS use a battery-powered or

battery-backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the engine has

been running, move to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide

poisoning.

WARNING: The exhaust from this product contains chemicals known to the State of California to

cause cancer, birth defects, or other reproductive harm.

WARNING: This engine may emit highly flammable and explosive gasoline vapors, which can

cause severe burns or even death if ignited. A nearby open flame can lead to explosion even if it isn’t

directly in contact with gasoline.

• Do not operate near an open flame.

• Do not smoke near the engine.

• Always operate on a firm, level surface.

• Always turn engine off before refueling. Allow engine to cool for at least 2 minutes before

removing fuel cap. Loosen cap slowly to relieve pressure in tank.

• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the

tank. Allow for expansion.

• Always check for spilled fuel before operating.

• Empty fuel tank and carburetor bowl before storing or transporting the engine.

WARNING: This engine produces heat when running. Temperatures near exhaust can exceed 1500F

(650C).

Do not touch hot surfaces. Pay attention to warning labels on the engine identifying hot parts of the

machine.

Allow engine to cool down after use before touching engine or areas of the engine that become hot

during use.

CAUTION: Misuse of this engine can damage it or shorten its life.

Only use engine for its intended purposes.

6

IMPORTANT SAFETY INSTRUCTIONS

This machine is capable of amputating hands and feet and throwing objects. Failure to observe the

following safety instructions could result in serious injury or death.

I.General Operation

1. Read, understand, and follow instructions and warnings in this manual and on the machine, engine

and attachments.

2. Only allow operators, who are responsible, trained, familiar with the instructions, and physically

capable to operate the machine.

3. Do not carry passengers and keep bystanders away.

4. Do not operate the machine while under the influence of alcohol or drugs.

5. Follow the manufacturer’s recommendation for wheel weights or counterweights.

II. PREPARATION BEFORE OPERATING

1. Clear the operating area of any objects which could be thrown by or interfere with operation of the

machine

2. Keep the area of operation clear of all bystanders, particularly small children. Stop the machine

and attachment(s) if anyone enters the area.

3. Do not operate the machine without the entire grass catcher, discharge chute, or other safety

devices in place and functioning properly. Check frequently for signs of wear or deterioration and

replace as needed.

4. Wear appropriate personal protective equipment such as safety glasses, hearing protection, and

footwear.

III. OPERATING

1. Only operate the engine in well ventilated areas. Exhaust gases contain carbon monoxide, a

deadly poison.

2. Only operate the machine in daylight or good artificial light.

3. Avoid holes, ruts, bumps, rocks, or other hidden hazards. Uneven terrain could overturn the

machine, or cause operator to lose their balance or footing.

4. Do not put hands or feet near rotating parts or under the machine. Keep clear of the discharge

opening at all times.

5. Do not direct discharge material toward anyone. Avoid discharging material against a wall or

obstruction. Material may ricochet back toward the operator. Stop the blade(s) when crossing

gravel surfaces.

6. Do not leave a running machine unattended. Always park on level ground, disengage the

attachment, set parking brake, and stop engine.

7. Do not mow in reverse unless absolutely necessary. Always look down and behind before and

while backing.

IV. CHILDREN SPECIFIC

1. Tragic accidents can occur if the operator is not alert to the presence of children. Children are

often attracted to the machine and the mowing activity. Never assume that children will remain

where you last saw them.

2. Keep children out of the operating area and under the watchful care of a responsible adult other

than the operator.

7

V. SLOPE SPECIFIC

Slopes are a major factor related to accidents. Operation on slopes requires extra caution.

1. Travel in the manufacturer recommended direction on slopes. Use caution while operating near

drop offs.

2. Avoid mowing wet grass. (Poor footing could cause a slip and fall accident.)

3. Do not operate machine under any condition where traction, steering, or stability is in question.

Tires could slide even if the wheels are stopped.

4. Always keep the machine in gear when going down slopes. Do not coast downhill.

5. Avoid starting and stopping on slopes. Avoid making sudden changes in speed or direction. Make

turns slowly and gradually.

6. Use extra care while operating machine with a grass catcher or other attachment(s). They can

affect the stability of the machine.

VI. FIRE AND FUEL SPECIFIC

1. Extinguish all cigarettes, cigars, pipes and other sources of ignition.

2. Use only an approved fuel container.

3. Do not remove fuel cap or add fuel with the engine running or while hot.

4. Do not refuel indoors or in enclosed spaces

5. Do not store the machine or fuel container, or refuel, where there is an open flame, spark, or pilot

light such as on a water heater or other appliance.

6. If fuel is spilled, do not attempt to start the engine and avoid creating any source of ignition until

fuel vapors have dissipated.

7. To help prevent fires: keep machine free of grass, leaves, or other debris build up; clean up oil or

fuel spillage and remove any fuel soaked debris; allow machine to cool before storing.

8. Use extra care in handling gasoline and other fuels. They are flammable and vapors are explosive.

VII. HAULING

1. Use full width ramps for loading and unloading a machine for transport.

VIII. SERVICE

1. Keep machine in good working order. Replace worn or damaged parts.

2. Use caution when servicing blades. Wrap the blade(s) or wear gloves. Replace damaged blades.

Do not repair or alter blade(s)

3. Machines with hydraulic pumps, hoses, or motors; and/or diesel injection systems:

WARNING: Fluid escaping under pressure may have sufficient force to penetrate skin and cause

serious injury. If fluid is injected into the skin, seek immediate medical attention. Keep body and

hands away from pin holes or nozzles that eject fluid under high pressure. If a leak occurs, have

the machine immediately serviced by a trained technician.

4. If equipped, disconnect spark plug wire(s) before making any repairs.

8

WARNING LABLE INSTRUCTIONS

Read carefully the manual before use.

Danger-flying objects;

keep safe distance from the machine as long as the engine is running.

Do not open or remove safety shields while engine is running.

.

Pay more attention to the operator’s hands and feet to avoid injury

.

Do not open or remove safety shields while engine is running.

Fuel is flammable,keep fire away.

Never

fill up the fuel tank while the engine is running.

Emission of toxic gas, do not use the mower in a close area or not well ventilated.

9

Look behind while backing

Steep slope hazard

When repairing, please pull off the spark plug boot, then repair it according to the

operational manual

Hot surfaces

When mowing,please wear the glasses ad ear plugs to defend the operator himself

Keep bystanders away.

Safety label found on the lawn mower:

KEEP HANDS AND FEET AWAY.

Warning: Keep the safety signs clear and visible on the equipment.Replace the safety signs if they

are missing or illegible.

10

KNOWING YOUR LAWN MOWER

Please use the illustration below to familiarize yourself with the location and function of the

components that control of your lawn mower.

1

Recoil

starter

handle

9

Primer

bulb

2

Grass

catcher

10

Fuel

tank

cap

3

Cutting

height

adjustment

lever

11

Rear

discharge

door

4

Rear

wheel

1

2

Lower

handle

5

Side

discharge

chute

1

3

Upper

handle

6

7

Oil dipstick

Front

wheel

14

15

Engine start/stop control

Drive

c

ontrol

bar

8

Cutting

height

adjustment

lever

15

1

4

1

3

1

2

5

6

7

8

11

10

9

1

2

3

4

11

LAWN MOWER PREPARATION

The following section describes steps necessary to prepare the lawn mower for use. If after reading

this section, you are unsure about how to perform any of the steps please call (800) 791-9458 Mon-Fri

9-5 EST for customer service. Failure to perform these steps properly can damage the lawn mower or

shorten its lifespan.

UNPACKING

Tools required (not included): #2PH screwdriver, utility knife.

Unpack the lawn mower and all its parts, and compare against the list below. Do not discard the carton

or any packaging until the engine is completely assembled.

1

Side

discharge

chute

5

Spark

plug

wrench

2

Grass

catcher

6

F

lange

bolts

M6

(

2

)

3

Lawn

mower

with

folding

handle

7

Funnel

4

Cable

clip

8

13.5oz

10W-30

Motor

Oil

1 2 3 4 5 6

7 8

3

ATTACH LOWER & UPPER HANDLE

1. Loosen two knobs and turn the folded upper tube to match the lower tube, and tighten the knob.

2. Turn the lower tube to an angle that maches the base and tighten with two screws. （Two screws

are in the accessories bag.）

3. Lock the cable to the lower handle using cable clip.

4. Insert the recoil starter handle cable into the hook provided on the upper handle. You must engage

the start/stop control to release the recoil starter handle.

R

ecoil

starter

handle

Cable

Clip

Start/Stop

Control

4

SIDE DISCHARGE CHUTE

To convert mower for side discharge, the grass catcher has been removed and that the rear discharge

door is closed.

1. Lift the spring-loaded discharge cover located on the side of the mower.

2. Slide two hooks of the side discharge chute under the hinge pin and lower the spring on the side

discharge cover.

Caution: Do not attempt to remove the permanently mounted spring loaded side discharge cover at

any time.

GRASS CATCHER

Attach grass catcher

1. Lift mower rear discharge door.

2. Place grass catcher into the slots in the handle brackets.

3. Release the rear discharge door so that it rests on the grass catcher.

ADJUSTING THE CUTTING HEIGHT

Warning! Cutting height adjustments should only be performed after the engine and

blades have come to a complete stop!

It is always best to begin cutting your lawn with a higher deck height to prevent scalping your lawn.

The cutting height is adjusted with front and rear levers.

Actuate the adjustment lever and pull it to the required position. Please make sure that the lever locks

into same position.

5

OPERATION

GAS AND OIL FILL-UP

The engine comes shipped without oil or gasoline. Be sure to add oil and gasoline before starting the

engine.

1. Add oil before starting mower for the first time.

2. Service the engine with gasoline as instructed.

Warning: Use extreme care when handling gasoline. Gasoline is extremely flammable

and its vapors are explosive. Never fuel the machine indoors or while the engine is hot or

running. Extinguish all cigarettes, cigars, pipes and other potential sources of ignition.

Engine Oil

E

ngine oil is a key factor in deciding the engines performance. Do not apply engine oil with

additives or 2-stroke gasoline engine oil, because they haven’t enough lubrication, and may shorten

the engines service life.

Check the engine with it stopped on a level ground.

Engine oil recommended: 10W-30

As viscosity varies with regions and temperatures, SF class oil is recommended.

Check method

1. Remove the dipstick and Clean it.

2. Reinsert the dipstick into the oil filling hole, and insert it to the end.

3. Check the oil level: If the oil level is too low, add the recommended engine oil and make sure the

oil level between upper level(1) and lower level(2).

4. Re-install the dipstick.

Adding Gasoline

Remove the fuel tank cap and check fuel level.

If the level is too low, refuel the tank, remember adding fuel not over the fuel upper level.

6

Warning:

1. Gasoline is extremely flammable and is explosive under certain conditions.

2. Refueling in a well-ventilation area with the engine stopped. Do not smoke and allow flames or

sparks in the area where gasoline is stored or where the fuel tank is refueled.

3. Do not overfill the fuel tank (there should be no fuel in the filling neck). After refueling, make

sure the fuel tank cap is set back securely.

4. 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.

5. Avoid repeated or prolonged contact with skin or breathing of fuel vapor. Keep out of reach of

children.

Use fresh (within 30 days from purchase), lead-free gasoline with a minimum of 87 octane rating.

Do not mix oil with gasoline.

To add gasoline, follow these steps:

1. Make sure the lawn mower is on a level surface.

2. Unscrew fuel tank cap and set aside. NOTE: The fuel cap may be tight and hard to unscrew.

3. Slowly add unleaded gasoline to the fuel tank. Be careful not to overfill. The capacity of the fuel

tank is 0.21gallons.

NOTE: Do not fill the fuel tank to the very top. Gasoline will expand and spill over during use even

with the fuel cap in place.

4. Reinstall fuel cap and wipe clean any spilled gasoline with a dry cloth.

IMPORTANT:

Never use an oil/gasoline mixture.

Never use old gasoline.

Avoid getting dirt or water into the fuel tank.

Gasoline can age in the tank and make starting difficult. Never store lawn mower for extended

periods of time with fuel in the tank or the carburetor.

ENGINE START/STOP CONTROL

This lawn mower comes equipped with an engine start/stop control to

prevent unintentional starting and to ensure safe operation. Releasing this

lever will quickly stop the blade in case of danger. The lever must be actuated before

the lawn mower is started. When the engine start/stop lever is released, it must return

to its initial position.

Before you start mowing, you should run through this process several times in order

to ensure that the lever and actuator cables are working properly. Repeat the test

several times after the engine has started up. When the engine start/stop Control is

released, the engine must stop within a few seconds. If not, contact Customer Service.

Warning: The blade begins to rotate as soon as the engine is started.

Engine

start/stop

Control

7

START THE ENGINE

To start the engine, perform the following steps:

1. Check the oil and fuel levels.

2. Press the primer bulb 3 times.

3. Engage the engine Start/Stop Control and simultaneously pull on the recoil starter. Pull on the recoil

starter handle slowly until a slight resistance is felt, then pull quickly to start the engine.

Return cord gently into the recoil starter. Never allow the cord to snap back.

4. If engine fails to start, repeat step 3.

NOTE: After repeated failed attempts to start the engine, please consult the troubleshooting guide

before attempting again. If problems persist, please call customer service.

NOTE:Don’t allow the starter grip to snap back against the engine. Return it gently to prevent

damage to the starter.

STOP THE ENGINE

Release the engine start/stop control to stop the engine.

DRIVE CONTROL BAR

If you press drive control bar the clutch for the drive will be closed and the lawn

mower will start to move with the engine running, Release the drive control bar in

good time to stop the moving lawn mower. Practice starting and stopping before

you use the mower for the first time until you are familiar with controlling the

mower.

MOWING

The engine throttle on your mower has been preset to provide optimum bagging and mulching

performance for years to come.

Only use a sharp blade that is in good condition. This will prevent the grass blades from becoming

frayed and the lawn from turning yellow.

Mow in straight lines for a nice, clean look. The swaths should overlap each other by a few inches in

order to avoid stripes.

It’s important to keep the underside of the mower deck clean and remove grass build-up. This buildup

will decrease mulching quality, and make it harder for the equipment to bag the grass.

Always mow along inclines (not up and down). You can prevent the lawn mower from slipping down

by holding a position at an angle upwards. Select the cutting height according to the length of the

grass. If necessary, mow a number of times so that you never cut more than 2 inches of grass in one

go.

Turn off the engine before doing any checks on the blade. Keep in mind that the blade continues to

rotate for a few seconds after the engine has been turned off. Never attempt to manually stop the blade.

Regularly check to see if the blade is securely attached, is in good condition and is sharp. If the

contrary is the case, sharpen the blade or replace it. In the event that the blade strikes an object,

immediately turn off the lawn mower and wait for the blade to come to a complete stop. Then inspect

the condition of the blade and the blade mount. Replace any parts that are damaged.

Drive control bar

8

USING AS SIDE DISCHARGE

You should close the rear cover with mulching adapter in order to use the side discharge.

1. On the side of the mower, lift the side discharge cover.

2. Slide two hooks of side discharge chute under hinge pin on the side discharge cover. Lower the

side discharge cover.

Caution: Do not remove side discharge cover at any time.

USING AS A REAR BAGGER

To use the grass catcher to collect clippings while you are operating the mower.

1. Attached grass catcher following instruction in the lawn mower preparation. Grass clippings will

automatically collect in bag as you run the mower. Operate mower until grass catcher is full.

2. Stop engine completely by releasing the engine start/stop lever. Make sure that the engine has

come to a complete stop.

3. Lift rear discharge door and pull grass catcher up and away from the mower to remove the grass

catcher. Dispose of the grass clippings and reinstall the grass catcher when complete.

Warning: If you strike a foreign object, stop the engine. Remove spark plug wire,

thoroughly inspect mower for any damage, and repair damage before restarting and

operating. Excessive vibration of the mower during operation is an indication of damage.

The mower should be promptly inspected and repaired.

9

MAINTENANCE

Proper routine maintenance of this mower will help prolong the life of the machine.

Always observe safety rules when performing any maintenance.

The warranty on this lawn mower does not cover items that have been subjected to operator abuse or

negligence. To receive full valve from warranty, operator must maintain the lawn mower as instructed

here.

Changing of engine-governed speed will void engine warranty.

All adjustments should be checked at least once each season.

Periodically check all fasteners and make sure these are tight.

Warning: Always stop engine, allow engine to cool, disconnect spark plug wire before

performing any type of maintenance on your machine.

DECK CARE

It is important to clean underside of the mower deck after use to prevent the build-up of grass

clippings or other debris. Follow steps below for proper cleaning.

1. Allow the engine to run until it is out of fuel. Do not attempt to pour fuel from the engine.

2. Disconnect spark plug wire.

3. Slowly tip mower so that it rests on the housing.

4. To prevent oil spills, always tip the mower so that the Air Filter is facing up.

5. Hold mower firmly and scrape and clean the underside of the deck with a suitable tool.

6. Gently lower the mower back on its wheels on the ground.

Warning: Never tip the mower more than 90° in any direction and do not leave the mower tipped for

any length of time. Oil can drain into the upper part of the engine causing a starting problem.

MOWER BLADE

To ensure safe operation, have all blade sharpening, balancing and mounting work carried out by an

authorized service center. To achieve optimal results, we recommend having the blade checked once a

year.

If, in spite of all caution, the blade comes into contact with an obstacle, switch off the engine

immediately and pull off the spark plug connector. Tilt the lawn mower to the rear and check the blade

for damage. Always keep the side with the air cleaner facing up. Damaged or bent blades must be

replaced. Never straighten a bent blade. Never work with bent or heavily worn blades as this will

result in vibrations, causing further damage to the mower.

Warning: Risk of injury when working with a damaged blade.

CHECKING THE OIL

The oil capacity of the engine crankcase is 16.9 fl. oz.

Check the oil level of the engine according to the Recommended Maintenance Schedule.

The lawn mower should be checked before each use for proper oil level. This is a critical step for

proper engine starting.

To check the oil level:

1. Remove the distick and clean it.

2. Reinsert the distick into the Oil filling hole without screwing it and check Oil lever.

3. If the Oil lever is too low, add the recommended engine oil up to the oil upper lever.

4. Reinstall oil dipstick.

10

CHANGING/ADDING OIL

Change the oil according to the Recommended Maintenance Schedule. Change the oil when the

engine is warm. This will allow for complete drainage. Change oil more often if operating under

heavy load or high ambient temperatures. It is also necessary to drain the oil from the crankcase if it

has become contaminated with water or dirt. The oil capacity of the engine is 16.9 fl.oz. Add oil when

the oil level is low. For proper type and weight of oil refer to “GAS AND OIL FILL-UP” portion of

the “OPERATION” section.

To refill the crankcase with oil, follow these steps:

1. Make sure the lawn mower is on a level surface. Tilting the lawn mower to assist in filling will

cause oil to flow into engine areas and will cause damage. Keep lawn mower level!

2. Remove the dipstick from the engine.

3. Using a funnel or appropriate dispenser, add the correct amount of oil (16.9 fl.oz) into the

crankcase.

4. Reinstall dipstick.

NOTE: Never dispose of used motor oil in the trash or down a drain. Please call a local recycling

center or auto garage to arrange oil disposal.

AIR CLEANER MAINTENANCE

Routine maintenance of the air cleaner helps maintain proper airflow to the carburetor. Occasionally

check that the air cleaner is free of excessive dirt. Refer to Recommended Maintenance Schedule. For

air cleaner detail:

1. Open the air cleaner cover.

2. Remove the sponge-like element from the casing.

3. Wipe the dirt from inside the empty air cleaner casing.

4. Wash the sponge-like element in household detergent and warm water. Small amount of oil in the

element is normal and necessary for the engine to work properly.

5. If necessary, replace the paper element.

6. Reinstall the sponge-like element in the air cleaner casing and reinstall the cover.

CAUTION: running the engine with dirty, damaged or missing air cleaner element will cause the

engine to wear out prematurely.

SPARK PLUG MAINTENANCE

The spark plug is important for proper engine operation. A good spark plug should be intact, free of

deposits, and properly gapped. Refer to Recommended Maintenance Schedule. To inspect the spark

plug:

1. Remove spark plug boot. Be careful not to tear insulation or wire.

2. Unscrew the spark plug from the engine using the spark plug wrench provided. There is limited

space for the wrench to turn. Use both rows of holes in the spark plug wrench to gain leverage to

loosen the plug.

3. Visually inspect the spark plug for cracks or excessive electrode wear. Replace as necessary.

4. Measure the plug gap with a wire gauge. The gap should be 0.7 to 0.8 mm (0.028-0.031 in).

5. If re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base then

re-gap the spark plug.

6. Screw the spark plug back into the spark plug hole using the spark plug wrench. Do not

over-tighten spark plug. Recommended tightening of spark plug is ½ to ¾ of a turn after spark

plug gasket contacts spark plug hole. Reinstall the spark plug boot.

11

MAINTENANCE SCHEDULE

Item Action Before

each

use

5 Hours of

use or first

month

First 25

hours of

use

50 hours of

use or every

6 months

100 hours of

use or every

year

150 hours of use

or every two

years

Blade Inspect x

Blade

mounting

bolt

Inspect x

Engine oil Check x

Change x x2x x

Air filter

Check x

Clean x1x1x1

Replace x

Grass bag Check x

Blade control

operation Check x x

Spark plug Check x

Replace x

Fuel tank Clean x

Flywheel

brake

pad

Check x

Valve

clearance

Check-

adjust

x

Fuel line Check Check every 2 years and replace if necessary

1.

Service

more

frequently

when

used

in

dusty

areas.

2.Change engine oil every 25 hours when used under heavy load or in high outside air temperatures.

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