Cub Cadet ST4125 Operator's Manual

769-06523 P00 (12/10)

Operator’s Manual

ST4125

4-Cycle Trimmer

SERVICE INFORMATION

TABLE OF CONTENTS

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Maintenance and Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

All information, illustrations, and specifications in this manual are based on the latest product information
available at the time of printing. We reserve the right to make changes at any time without notice.

Copyright© 2010 MTD SOUTHWEST INC, All Rights Reserved.

DO NOT RETURN THIS UNIT TO THE RETAILER. PROOF OF PURCHASE WILL BE REQUIRED
FOR WARRANTY SERVICE.

For assistance regarding the assembly, controls, operation or maintenance of the unit, please call the
Customer Support Department: 1-877-282-8684 (U.S.) or 1-800-668-1238 (Canada)

Additional information about the unit can be found on our website: www.cubcadet.com (U.S.) or
www.cubcadet.ca (Canada)

For service, please call the Customer Support Department to obtain a list of authorized service dealers
near you. Service on this unit, both within and after the warranty period, should only be performed by an
authorized and approved service dealer. When servicing, use only identical replacement parts.

RULES FOR SAFE OPERATION

The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols,
and their explanations, deserve your careful attention and understanding. The safety warnings do
not by themselves eliminate any danger. The instructions or warnings they give are not substitutes
for proper accident prevention measures.

NOTE:

Advises you of information or instructions vital to the operation or maintenance of the equipment.

SYMBOL MEANING

SPARK ARRESTOR NOTE
NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington.

All U.S. Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and
Washington require, by law that certain internal combustion engines operated on forest brush and/or grass­covered areas be equipped with a spark arrestor, maintained in effective working order, or the engine be
constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for
regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability
or a fine. This unit is factory equipped with a spark arrestor. If it requires replacement, ask your LOCAL
SERVICE DEALER to install the Accessory Part #753-05444 Muffler Assembly.

READ ALL INSTRUCTIONS BEFORE OPERATING

• Read the instructions carefully. Be familiar with the controls and proper use of the unit.

• Do not operate this unit when tired, ill, or under the influence of alcohol, drugs, or medication.

• Children and teens under the age of 15 must not use the unit, except for teens guided by an adult.

• All guards and safety attachments must be installed properly before operating the unit.

• Inspect the unit before use. Replace damaged parts. Check for fuel leaks. Make sure all fasteners are in
place and secure. Replace parts that are cracked, chipped, or damaged in any way. Do not operate the
unit with loose or damaged parts.

• Carefully inspect the area before starting the unit. Remove all debris and hard or sharp objects such as
glass, wire, etc.

• Be aware of the risk of injury to the head, hands and feet.

• Clear the area of children, bystanders, and pets. At a minimum, keep all children, bystanders, and pets
outside a 50 feet (15 m) radius; there still may be a risk to bystanders from thrown objects. Bystanders
should be encouraged to wear eye protection. If you are approached, stop the unit immediately.

• Use only 0.105 inch, 2.67 mm diameter original equipment manufacturer replacement line. Never use
metal-reinforced line, wire or rope. These can break off and become dangerous projectiles.

• Squeeze the throttle control and check that it returns automatically to the idle position. Make all
adjustments or repairs before using unit.

SAFETY WARNINGS FOR GAS UNITS

• Store fuel only in containers specifically designed and approved for the storage of such materials.

• Always stop the engine and allow it to cool before filling the fuel tank. Never remove the fuel tank
cap or add fuel when the engine is hot. Always loosen the fuel tank cap slowly to relieve any
pressure in the tank before fueling. Do not smoke.

• Always add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Do
not smoke.

• Never operate the unit without the fuel cap securely in place.

• Avoid creating a source of ignition for spilled fuel. Wipe up any spilled fuel from the unit
immediately before starting the engine. Move the unit at least 30 feet (9.1 m) from the fueling
source and site before starting the engine. Do not smoke.

• Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Only
operate this unit in a well-ventilated outdoor area.

WHILE OPERATING

• Wear safety glasses or goggles that meet ANSI Z87.1 standards and are marked as such. Wear
ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty.

• Wear heavy long pants, boots, gloves and a long sleeve shirt. Do not wear loose clothing, jewelry, short
pants, sandals or go barefoot. Secure hair above shoulder level.

• The cutting attachment shield must always be in place while operating the unit as a trimmer. Do not
operate unit without both trimming lines extended, and the proper line installed. Do not extend the
trimming line beyond the length of the shield.

• This unit has a clutch. The cutting attachment remains stationary when the engine is idling. If it does not,
have the unit adjusted by an authorized service technician.

• Adjust the handle to your size in order to provide the best grip.

• Be sure the cutting attachment is not in contact with anything before starting the unit.

• Use the unit only in daylight or good artificial light.

• Avoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and
unit must be in a stable position while starting. Refer to Starting/Stopping Instructions.

• Use the right tool. Only use this tool for its intended purpose.

• Do not overreach. Always keep proper footing and balance.

• Always hold the unit with both hands when operating. Keep a firm grip on both handles or grips.

• Keep hands, face, and feet at a distance from all moving parts. Do not touch or try to stop the cutting
attachment when it rotates.

• Do not touch the engine, gear housing or muffler. These parts get extremely hot from operation, even
after the unit is turned off.

• Do not operate the engine faster than the speed needed to cut, trim or edge. Do not run the engine at
high speed when not cutting.

• Always stop the engine when cutting is delayed or when walking from one cutting location to another.

• If you strike or become entangled with a foreign object, stop the engine immediately and check for
damage. Do not operate before repairing damage. Do not operate the unit with loose or damaged parts.

• Stop the unit, switch the engine to off, and disconnect the spark plug for maintenance or repair.

• Use only original equipment manufacturer replacement parts and accessories for this unit. These are
available from your authorized service dealer. Use of any unauthorized parts or accessories could lead to
serious injury to the user, or damage to the unit, and void your warranty.

• Keep unit clean of vegetation and other materials. They may become lodged between the cutting
attachment and shield.

• To reduce fire hazard, replace a faulty muffler and spark arrestor. Keep the engine and muffler free from
grass, leaves, excessive grease or carbon build up.

OTHER SAFETY WARNINGS

• Never store a fueled unit inside a building where fumes may reach an open flame or spark.

• Allow the engine to cool before storing or transporting. Be sure to secure the unit while transporting.

• IMPORTANT SAFETY INSTRUCTIONS •

Read the Operator’s Manual and follow all warnings and safety instructions. Failure to do so

can result in serious injury to the operator and/or bystanders.

FOR QUESTIONS, CALL 1-877-282-8684 IN U.S. OR 1-800-668-1238 IN CANADA

SAFETY ALERT:

Indicates danger, warning or caution. Attention is required in order to

avoid serious personal injury. May be used in conjunction with other symbols or pictographs.

DANGER:

Failure to obey a safety warning will result in serious injury to yourself or to
others. Always follow the safety precautions to reduce the risk of fire, electric shock and
personal injury.

WARNING:

Failure to obey a safety warning can result in injury to yourself and others. Always

follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

CAUTION:

Failure to obey a safety warning may result in property damage or personal injury
to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric
shock and personal injury.

WARNING:

When using the unit, you must follow the safety rules. Please read these
instructions before operating the unit in order to ensure the safety of the operator and any
bystanders. Please keep these instructions for later use.

WARNING:

Gasoline is highly flammable, and its vapors can explode if ignited. Take the
following precautions:

CALIFORNIA PROPOSITION 65
WARNING:

Engine exhaust, some of its constituents and certain finished components
contain or emit chemicals known to the State of California to cause cancer and birth
defects or other reproductive harm. Wash hands after handling.

2

• SAFETY AND INTERNATIONAL SYMBOLS •

This operator's manual describes safety and international symbols and pictographs that may appear on this product.
Read the operator's manual for complete safety, assembly, operating, maintenance, and repair information.

• Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach
of children.

• Never douse or squirt the unit with water or any other liquid. Keep handles dry, clean and free from
debris. Clean after each use, see Cleaning and Storage instructions.

• Keep these instructions. Refer to them often and use them to instruct other users. If you loan someone
this unit, also loan them these instructions.

SAVE THESE INSTRUCTIONS

KNOW YOUR UNIT

APPLICATIONS

As a trimmer:

• Cutting grass and light weeds.

• Edging

• Decorative trimming around trees,
fences, etc.

Other optional accessories may be used
with this unit.

Throttle
Control

J-Handle

Shaft Grip

Air Filter/Muffler

Cover

Spark Plug

Shaft Housing

Starter Rope Grip

Line

Cutting

Blade

Muffler

On/Off Control

Cutting Head

Cutting Head Shield

Fuel Cap

Rapid-Link®

INSTALL THE CUTTING HEAD SHIELD

Use the following instructions if the cutting head
shield on your unit is not installed.

1. Place the cutting head shield onto the shaft

housing. Be sure the guard mounting bracket
slides into the slot on the edge of the cutting
shield. Rotate the shield into place,
counterclockwise. The holes in the guard
mounting bracket and cutting head shield will
line up (Fig. 1).

2. From inside the cutting head shield, push the

square bolt through the hole until the threaded
end protrudes through the guard mounting bracket (Fig. 2).

3. Put the washer on the bolt, then screw the wing nut onto the bolt and tighten.

Figure 3 shows the installation process from underneath the unit.

INSTALL AND ADJUST THE J-HANDLE

1. Place the J-handle between the top and middle clamp pieces (Fig. 4).

2. While holding the 3 pieces together, install the 4 screws through the top clamp

and into middle clamp.

NOTE: The holes in the top and middle clamp will line up only when assembled

correctly.

3. Place the clamps and the J-handle over the shaft housing and onto the bottom clamp.

4. Hold each hex nut in the bottom clamp recess with a finger. Start screws with a

large Phillips screwdriver. Do not tighten until making the handle adjustment.

5. Slide the J-handle in or out until the arrow/white line on the decal touches the clamp

assembly (Fig. 4). You must first loosen the screws if the handle is pre-installed.

6. While holding the unit in the operating position (Fig. 15), position the J-handle to

the location that provides you the best grip.

7. Tighten the clamp screws evenly until tight.

OPERATING THE RAPID-LINK® SYSTEM

The Rapid-Link® system enables the use of these optional Add-Ons.

Mach 4® Trimmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AF720

Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AH720*

Brushcutter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BC720*

Bladed Pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BP720

Blower Trimmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BT720*

Blower Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BV720

Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720

Lawn Dethatcher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LD720

Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720*

Pole Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PS720

Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SS725

Snow Thrower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST720

Turbo Blower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TB720

* Do NOT use this Add-On with an electric powered unit.
REMOVING THE ADD-ON

1. Turn the knob counterclockwise to loosen (Fig. 7).

2. Press and hold the release button (Fig. 5).

3. While firmly holding the upper shaft housing,

pull the lower shaft housing straight out of the
Rapid-Link® coupler (Fig. 6).

INSTALLING THE ADD-ON
NOTE: To make installing or removing the add-

on easier, place the unit on the ground
or on a work bench.

1. Turn knob counterclockwise to loosen (Fig. 7).

2. While firmly holding the add-on, push it straight into the Rapid-Link® coupler (Fig. 6).

NOTE: Aligning the release button with the guide recess will help installation (Fig. 5).

3. Turn the knob clockwise to tighten (Fig. 7).

For decorative trimming/edging with the line cutting head, lock the release button
into the 90° hole (Fig. 7).

ASSEMBLY INSTRUCTIONS

Guide Recess

Fig. 5

Release Button

Rapid-Link®

Coupler

Upper Shaft

Housing

Fig. 6

Lower Shaft

Housing

Primary Hole

Knob

Fig. 7

90˚ Edging Hole

(Trimmer Only)

RULES FOR SAFE OPERATION

• SAFETY ALERT SYMBOL

Indicates danger, warning or caution. May be used in conjunction with other symbols
or pictographs.

• HOT SURFACE WARNING

Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely
hot from operation. When turned off they remain hot for a short time.

• READ OPERATOR'S MANUAL

WARNING: Read the operator’s manual(s) and follow all warnings and safety

instructions. Failure to do so can result in serious injury to the operator and/or bystanders.

• WEAR EYE AND HEARING PROTECTION

WARNING: Thrown objects and loud noise can cause severe eye injury and hearing

loss. Wear eye protection meeting ANSI Z87.1-1989 standards and ear protection
when operating this unit. Use a full face shield when needed.

• KEEP BYSTANDERS AWAY

WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m)

from the operating area.

• THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY

WARNING: Small objects can be propelled at high speed, causing injury. Keep

away from the rotating rotor.

SYMBOL MEANING

• CHOKE CONTROL

1. • FULL choke position

2. • PARTIAL choke position

3. • RUN choke position

• UNLEADED FUEL

Always use clean, fresh unleaded fuel

• OIL

Refer to operator’s manual for the proper type of oil.

• ON/OFF STOP CONTROL

ON / START / RUN

• ON/OFF STOP CONTROL

OFF or STOP

• SHARP BLADE

WARNING: Sharp blade on cutting attachment shield. To prevent serious injury, do

not touch the line cutting blade.

• DO NOT USE E85 FUEL IN THIS UNIT

WARNING: It has been proven that fuel containing greater than 10% ethanol will

likely damage this engine and void the warranty.

WARNING:

To prevent serious personal injury, never operate the trimmer without the cutting head

shield in place.

Cutting

Head

Shield

Shaft Housing

Guard

Mounting

Bracket

Fig. 1

J-Handle

Screws (4)

Fig. 4

Oil Fill Plug

Blue Choke Lever

Primer

Bulb

Top

Clamp

Middle
Clamp

Bottom

Clamp

Nuts

TOOLS REQUIRED:

• Large Phillips screwdriver

Square

Bolt

Hole

Washer

Fig. 3

Washer

Guard

Mounting

Bracket

Fig. 2

Wing

Nut

Square Bolt

Wing Nut

Cutting

Head

Shield

3

OIL AND FUEL INFORMATION

STARTING/STOPPING INSTRUCTIONS

WARNING:

Remove fuel cap slowly to avoid injury from fuel spray.

Never operate the unit without the fuel cap securely in place.

WARNING:

Avoid accidental starting. Make sure you are in the
starting position when pulling the starter rope (Fig. 14). To avoid serious
injury, the operator and unit must be in a stable position while starting.

OPERATING INSTRUCTIONS

HOLDING THE TRIMMER

Before operating the unit, stand in the operating position (Fig. 15). Check for the following:

• The operator is wearing eye protection and proper clothing

• With a slightly-bent right arm, the operator’s hand is holding the shaft grip

• The operator’s left arm is straight, the left hand holding the J-handle

• The unit is at waist level

• The cutting head is parallel to the ground and easily contacts the grass without
the need to bend over

TIPS FOR BEST TRIMMING RESULTS

• Keep the cutting head parallel to the ground.

• Do not force the cutting head. Allow the tip of the line to do the cutting, especially along walls. Cutting with more
than the tip will reduce cutting efficiency and may overload the engine.

• Cut grass over 8 inches (200 mm) by working from top to bottom in small increments to avoid premature line wear
or engine drag.

• Cut from right to left whenever possible. Cutting to the left improves the unit's cutting efficiency. Clippings are thrown
away from the operator.

• Slowly move the trimmer into and out of the cutting area at the desired height. Move either in a forward-backward or
side-to-side motion. Cutting shorter lengths produces the best results.

• Trim only when grass and weeds are dry.

• The life of your cutting line is dependent upon:

• Following the trimming techniques

• What vegetation is being cut

• Where vegetation is cut

For example, the line will wear faster when trimming against a foundation wall as
opposed to trimming around a tree.

DECORATIVE TRIMMING

Decorative trimming is accomplished by removing all vegetation around trees, posts, fences and more.
Rotate the whole unit so that the cutting head is at a 30° angle to the ground (Fig. 16).

WARNING:

Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating

this unit.

Fig. 15

WARNING:

Overfilling oil crankcase may cause serious personal injury. Check and maintain the
proper oil level in the crank case; it is important and cannot be overemphasized. Check the oil before
each use and change it as needed. See Changing the Oil.

RECOMMENDED OIL TYPE

Using the proper type and weight of oil in the crankcase is extremely
important. Check the oil before each use and change the oil regularly. Failure

to use the correct oil, or using dirty oil, can cause premature engine wear and failure.
Use a high-quality SAE 30 weight oil of API (American Petroleum Institute) service

class SF, SG, SH.

ADDING OIL TO CRANKCASE: INITIAL USE
NOTE: This unit is shipped without oil. In order to avoid damage to the unit, put

oil in the crankcase before you attempt to start the unit.

Your unit is supplied with one 3.04 fluid oz. (90 ml.) bottle of SAE 30 SF, SG, SH oil (Fig. 8).
NOTE: Save the bottle of oil. It can be used to measure the correct amount during

future oil changes. See Changing the Oil.

1. Unscrew the top of the bottle of oil and remove the paper seal covering the
opening. Replace the top. Next, cut the tip off the funnel spout (Fig. 8).

2. Tip unit so that the back of the engine is facing up in a vertical position.

3. Remove the oil fill plug from the crankcase (Fig. 10).

4. Pour the entire bottle of oil into the oil fill hole (Fig. 9).

NOTE: Never add oil to the fuel or fuel tank.

5. Wipe up any oil that may have spilled and reinstall the oil fill plug.

Check oil before each use and change as needed. Refer to Checking the Oil Level.

RECOMMENDED FUEL TYPE

Old fuel is the primary reason for improper unit performance. Be sure to use fresh,
clean, unleaded gasoline.

NOTE: This is a four cycle engine. In order to avoid damage to the unit, do not

mix oil with gasoline.

Definition of Blended Fuels

Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol
or MTBE (ether). Alcohol-blended fuel absorbs water. As little as 1% water in the fuel
can make fuel and oil separate or form acids when stored. Use fresh fuel (less than 30 days old), when using alcohol­blended fuel.

Using Blended Fuels

If you choose to use a blended fuel, or its use is unavoidable, follow recommended precautions:

• Always use fresh unleaded gasoline

• Use the fuel additive STA-BIL® or an equivalent

• Drain tank and run the engine dry before storing unit

Using Fuel Additives

The use of fuel additives, such as STA-BIL® Gas Stabilizer or an equivalent, will inhibit corrosion and minimize the
formation of gum deposits. Using a fuel additive can keep fuel from forming harmful deposits in the carburetor for up to
six (6) months. Add 0.8 oz. (23 ml) of fuel additive per gallon of fuel according to the instructions on the container.
NEVER add fuel additives directly to the unit's gas tank.

FUELING THE UNIT

1. Remove the fuel cap (Fig. 11).

2.

Place the gas container’s spout into the fill hole on the fuel tank (Fig. 11) and fill the tank.

NOTE: Do not overfill the tank.

3. Wipe up any gasoline that may have spilled.

4. Reinstall the fuel cap.

5. Move the unit at least 30 ft. (9.1 m) from the fueling source and site before starting the engine.

NOTE: Dispose of the old gasoline in accordance with federal, state and local regulations.

Funnel

Spout

Fig. 8

Fig. 9

Gas Can Spout

Fig. 11

WARNING:

Remove fuel cap slowly to avoid injury from fuel spray.

Never operate the unit without the fuel cap securely in place.

WARNING:

Add fuel in a clean, well ventilated outdoor area. Wipe up any spilled fuel immediately.

Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

WARNING:

Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine
and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open
flames at a distance from the area.

Fig. 10

Oil Fill

Plug

O-Ring

Oil Fill

Hole

Fuel Tank

Fuel Cap

STARTING INSTRUCTIONS

1. Check the oil level in the crankcase. Refer to Checking the Oil Level.

2. Fill the fuel tank with fresh, clean unleaded gasoline. Refer to Fueling the Unit.
NOTE: There is no need to turn the unit on. The On/Off Control is in the ON ( I )

position at all times (Fig. 12).

IF COLD... In cold weather conditions (below 40°F), flip the Red Cold Weather Start

Lever (Fig. 13) down to the start/closed position and continue to step 3. DO
NOT flip this lever down if the temperature is above 40°F.

3. Fully press and release the primer bulb 10 times, slowly. Some amount of fuel
should be visible in the primer bulb and fuel lines (Fig. 13). If fuel can not be seen
in the bulb, press and release the bulb until fuel is visible.

4. With the unit in the starting position, do not squeeze the throttle control (Fig. 14).
With a controlled and steady motion, pull the starter rope 3 to 5 times or until
engine starts.

IF COLD... In cold weather conditions (below 40°F), flip the Red Cold Weather Start

Lever back up to the run/open position (Fig. 13) after the unit has started
and before squeezing the throttle control.

5. Wait 60 seconds and then squeeze the throttle control.

6. Continue squeezing the throttle control for an additional 30 to 60 seconds to let
the engine warm up. The unit may be used during this time.

IF... The engine does not start, go back to step 3.
IF... The engine stops while squeezing the throttle control, go back to step 4.
STOPPING INSTRUCTIONS

1. Release your hand from the throttle control. Allow the engine to cool down by idling.

2. Press and hold the On/Off Control switch in the OFF (O) position until the unit comes to a complete stop (Fig. 12).

OFF (O)

ON (I)

Throttle

Control

Fig. 12

Starter

Rope

Starting Position

Throttle
Control

Fig. 14

Fig. 13

Primer Bulb

Red Cold Weather

Start Lever

Run/ Open

Close/ Start

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be
a part of any seasonal tune-up.

NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures

take your unit to any non-road engine repair establishment, individual or authorized service dealer.

NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any

non-road engine repair establishment, individual or authorized service dealer.

NOTE: Please read the California/EPA statement that came with the unit for a complete listing of terms and

coverage for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.

WARNING:

To prevent serious injury, never perform maintenance or repairs with unit running. Always

service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.

Fig. 16

MAINTENANCE AND REPAIR INSTRUCTIONS

FREQUENCY MAINTENANCE REQUIRED SEE

Every 10 hours Clean and oil air filter p. 4
Change 1st 10 hours Change oil p. 3

Every 25 hours

Change oil
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap

p. 3
p. 4
p. 4

FIXED LINE INSTALLATION

Always use original equipment manufacturer 0.105
inch (2.67 mm) replacement line. Lines other than
those specified may make the engine overheat or fail.

To install the trimming line:

1. Insert each end of the replacement line into the
holes on either side of retention hook (Fig. 17).

2. Push the ends through until they stick out of
the sides of the head (Fig. 18).

3. Pull the ends through making sure that the
ends are of equal length and the middle of the
line is centered between the insertion holes
(Fig. 19).

4. If the ends are not of equal length, push the
longer end back through the head part way and
pull the shorter end to compensate. Repeat
until both ends are the same length.

5. Push the trimmer line until it lies flat against the
cutting head (Fig. 20). Make sure the two
lengths of cutting line are of equal length. If
they are not, adjust until they are.

CHECKING THE OIL LEVEL

The importance of checking and maintaining the
proper oil level in the crankcase cannot be
overemphasized. Check oil before each use:

1. Stop the engine and allow oil to drain into the
crankcase.

2. Place the unit on a flat, level surface to get a
proper oil level reading (Fig. 24).

3. Keep dirt, grass clippings and other debris out
of the engine. Clean the area around the
dipstick before removing it.

4. Remove the oil fill plug/dipstick and wipe off oil. Reinsert it all the way back in. (Fig. 22)

5. Remove the oil fill plug/ dipstick and check the oil level. Oil should be up to the top of the dipstick (Fig. 21).

6. If the level is low, add a small amount of oil to the oil fill hole and recheck (Fig. 22). Repeat this procedure until the
oil level reaches the top of the dipstick.

NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill plug/ dipstick when checking and changing the oil (Fig. 21).
CHANGING THE OIL

Change the oil while the engine is still warm. The
oil will flow freely and carry away more impurities.

1. Unplug spark plug boot to prevent accidental
starting.

2. Remove the oil fill plug/dipstick.

3. Pour the oil out of the oil fill hole and into a
container by tipping the unit to a vertical
position (Fig. 23). Allow ample time for
complete drainage.

4. Wipe up any oil residue on the unit and clean
up any oil that may have spilled. Dispose of the oil according to federal, state and
local regulations.

5. Refill the crankcase with 3.04 fl.oz. (90 ml) of SAE 30 SF, SG, SH oil.

NOTE: Use the bottle and spout saved from initial use to measure the correct

amount of oil. The top of the label on the bottle measures approximately

3.04 ounces (90 ml) (Fig. 25). Check the level with the dipstick. If the level
is low, add a small amount of oil and recheck. Do not overfill (Fig. 22).

6. Replace the oil fill plug/dipstick.

7. Reconnect the spark plug boot.

WARNING:

To prevent extensive engine wear and damage to the unit, always maintain the proper oil

level in the crankcase. Never operate the unit with a low oil level.

CAUTION:

Wear gloves to prevent injury when handling the unit.

Fig. 21

Fig. 22

Oil Fill Plug/ Dipstick

Oil Fill

Plug

O-Ring

Fig. 23

Oil Fill

Hole

WARNING:

Never use metal-reinforced line, wire, chain or rope. These can break off and become

dangerous projectiles.

Fig. 24

Fig. 25

Fill Line

O-Ring

Full

Add 1.4-

1.5 oz.

(41-44 ml)

Fig. 18

Fig. 17

Fig. 19

Fig. 20

WARNING:

Always use the correct line length when installing trimming line on the unit. The line may not

release properly if the line is too long.

WARNING:

DO NOT USE E85 FUEL IN THIS UNIT. It has been

proven that fuel containing greater than 10% ethanol will likely
damage this engine and void the warranty.

4

AIR FILTER MAINTENANCE

Cleaning the Air Filter

Failure to maintain your air filter properly can result in poor performance or can cause
permanent damage to your engine.

1. Open the air filter cover. Push the tab on the left side of the cover inward. Then
pull the air filter cover out and to the right (Fig. 26).

NOTE:

It may be necessary to remove the fuel cap to completely remove the air filter
cover.

2. Remove the air filter (Fig. 26).

3. Wash the filter in detergent and water. Rinse the filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly coat the filter.

5. Squeeze the filter to spread and remove excess oil.

6. Replace the filter (Fig. 26).

NOTE: If the unit is operated without the air filter, you will VOID the warranty.

7. Reinstall the air filter cover. Position the hooks on the right side of the air filter cover into the slots at the right side
of the back plate (Fig. 26).

NOTE: It may be necessary to remove the fuel cap to completely replace the air filter cover.

8. Swing the cover to the left until the tab on the air filter cover snaps into place in the slot on the back plate (Fig. 26).

9. Replace the fuel cap if you have removed it.

IDLE SPEED ADJUSTMENT

The idle speed of the engine is adjustable. An idle adjustment screw is between the
air filter cover and the engine starter housing (Fig. 27).

NOTE: Careless adjustments can seriously damage your unit. An authorized

service dealer should make carburetor adjustments.

If, after checking the fuel and cleaning the air filter, the engine still will not idle, adjust
the idle speed screw as follows:

1. Start the engine and let it run at a high idle for a minute to warm up. Refer to
Starting/Stopping Instructions.

2. Release the throttle trigger and let the engine idle. If the engine stops, insert a
small Phillips screwdriver in between the Air Filter Cover and the Engine Cover
(Fig. 27). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.

NOTE: The cutting attachment should not rotate when the engine idles.

3. If the cutting attachment rotates when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at
a time (as needed), to reduce idle speed.

Checking the fuel, cleaning the air filter, and adjusting the idle speed should solve most engine problems. If not and all
of the following are true:

• the engine will not idle

• the engine hesitates or stalls on acceleration

• there is a loss of engine power

Have the carburetor adjusted by an authorized service dealer.

ROCKER ARM CLEARANCE

This service requires disassembly of the engine. If
feeling unsure or unqualified to perform this service,
take the unit to an authorized service center.

• The engine must be cold when checking or

adjusting the valve clearance.

• This task should be performed inside, in a clean,

dust free area.

1. Remove the five (5) screws with a Flat-head or
T-20 Torx screwdriver and the one T-25 screw
(Fig. 28).

2. Disconnect the spark plug wire.

3. Clean dirt from around the spark plug. Remove
the spark plug from the cylinder head by
turning a 5/8 in. socket counterclockwise.

4. Remove the engine cover (Fig. 28).

5. Clean dirt from around the rocker arm cover.
Remove the screw holding the rocker arm
cover with a large flat blade screwdriver or Torx
T-25 bit (Fig. 29). Remove the rocker arm cover
and gasket.

6. Pull the starter rope slowly to bring the piston to the top of its travel, (known as top dead center). Check that:

• The piston is at the top of its travel while looking in the spark plug hole (Fig. 29).

• Both rocker arms move freely, and both valves are closed.

If these statements are not true, repeat this step.

7. Slide the feeler gauge between the rocker arm and the valve return spring. Measure the clearance between the
valve stem and rocker arm (Fig. 30). Measure both the intake and exhaust valves.

The recommended clearance for both intake and exhaust is .003 – .006 in. (.076 – 0.152 mm). Use a standard
automotive .005 in. (0.127 mm) feeler gauge. The feeler gauge should slide between the rocker arm and valve stem
with a slight amount of resistance, without binding. See Figures 30 and 31.

8. If the clearance is not within specification:

a. Turn the adjusting nut using a 5/16 inch (8 mm) wrench or nut driver (Fig. 31).

• To increase clearance, turn the adjusting nut counterclockwise.

• To decrease clearance, turn the adjusting nut clockwise.

b. Recheck both clearances and adjust as necessary.

9. Reinstall the rocker arm cover using a new gasket. Torque the screw to 20–30 in•lb (2.2–3.4 N•m).

10. Check the spark plug and reinstall. See Replacing the Spark Plug.

11. Replace the spark plug wire.

12. Reinstall the engine cover. Check alignment of the cover before tightening the screws. Tighten screws.

REPLACING THE SPARK PLUG

Use a replacement part number 791-180852B spark plug. The correct air gap is 0.025 in. (0.635 mm).

1. Stop the engine and allow it to cool. Remove the five (5) screws with a Flat-head or T-20 Torx screwdriver and the
one T-25 screw (Fig. 28).

2. Grasp the plug wire firmly and pull the cap from the spark plug.

3. Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket
counterclockwise.

4. Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.635 mm.)
using a feeler gauge (Fig. 32).

5. Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8 in. socket
clockwise until snug.

If using a torque wrench torque to: 110-120 in.•lb. (12.3-13.5 N•m)

Do not over tighten.

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING:

The cutting attachment may spin during idle speed adjustments. Wear protective clothing

and observe all safety instructions to prevent serious personal injury.

Fig. 27

Idle Adjustment Screw

WARNING: Do not sand blast, scrape or clean electrodes. Grit in the

engine could damage the cylinder.

Fig. 32

0.025 in.

(0.635 mm.)

WARNING:

To avoid serious personal injury, always turn the unit off and allow it to cool before you

clean or service it.

Fig. 28

View Of The Rear Engine Cover

Fig. 29

Rocker Arm

Cover

Fig. 30

Adjustment

Nuts

Intake

Exhaust

Rocker

Arms

Spark

Plug Hole

Valve Stem

Fig. 31

Feeler
Gauge

0.003–0.006 in.

(0.076–0.152 mm)

Screws

Screws

T-25 Screws

CAUSE ACTION

Old fuel Drain gas tank and add fresh fuel
Fouled spark plug Replace or clean the spark plug

CAUSE ACTION

Old fuel Drain gas tank and add fresh fuel
Cutting attachment bound with grass Stop the engine and clean the cutting attachment
Dirty air filter Clean or replace the air filter

TROUBLESHOOTING

CAUSE ACTION

Empty fuel tank Fill fuel tank with fuel
Primer bulb wasn't pressed enough Press primer bulb fully and slowly 10 times
Old fuel Drain gas tank and add fresh fuel
Fouled spark plug Replace or clean the spark plug

CAUSE ACTION

Air filter is plugged Replace or clean the air filter
Old fuel Drain gas tank and add fresh fuel
Improper idle speed Adjust according to the Idle Speed Adjustment section

ENGINE WILL NOT START

ENGINE WILL NOT ACCELERATE

ENGINE WILL NOT IDLE

If further assistance is required, contact an authorized service dealer.

ENGINE LACKS POWER OR STALLS WHEN CUTTING

ENGINE*

Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steel Tube (Rapid-Link™)

Throttle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finger-Tip Trigger

Approximate Unit Weight (No fuel, with handle, shield and cutting attachment) . . . . . . . . . . . . . . . . . . . 14.5 lbs (6.5 kg)

Cutting Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed Line Cutting Head

Line Spool Diameter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 inches (76.2 mm)

Trimming Line Diameter:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.105 inches (2.67 mm)

Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 in. (43.18 cm.)

Engine Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 cu. in. (26.2 cc)

Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal

Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,200+ rpm

Idle Speed RPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 - 3,600 rpm

Ignition Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic

Ignition Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rocker Switch

Valve clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003–0.006 in. (0.076–0.152 mm)

Spark Plug Gap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 inch (0.635 mm)

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAE 30 Oil

Crankcase Oil Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.04 oz (90 ml)

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unleaded

Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm, All-Position

Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Rewind

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baffled with Guard

Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Spring Return

Fuel Tank Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 oz (532 ml)

DRIVE SHAFT AND CUTTING ATTACHMENT*

SPECIFICATIONS

*All specifications are based on the latest product information available at the time of printing. We reserve the right to
make changes at any time without notice.

MAINTENANCE AND REPAIR INSTRUCTIONS

CLEANING

Use a small brush to clean off the outside of the unit. Do not use strong detergents. Household cleaners that contain
aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off
any moisture with a soft cloth.

STORAGE

• Never store the unit with fuel in the tank where fumes may reach an open flame or spark.

• Allow the engine to cool before storing.

• Lock up the unit to prevent unauthorized use or damage.

• Store the unit in a dry, well-ventilated area.

• Store the unit out of the reach of children.

Short Term Storage (1-2 weeks)

1. Store the unit in a horizontal position. If this is not possible, store the unit vertically with the engine at the top.

Long Term Storage

1. Drain all gasoline from the gas tank into a container. Do not use gas that has been stored for more than 30 days.
Dispose of the old gasoline in accordance with federal, state and local regulations.

2. Start the engine and allow it to run until it stalls. This ensures that all gasoline has been drained from the carburetor.

3. Allow the engine to cool. Remove the spark plug and put 5 drops of high quality motor oil into the cylinder. Pull the
starter rope slowly to distribute the oil. Reinstall the spark plug.

NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after

storage.

4. Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance with federal, state and local
regulations.

5. Thoroughly clean the unit and inspect for any loose or damaged parts. Repair or replace damaged parts and
tighten loose screws, nuts or bolts. The unit is ready for storage.

WARNING:

To avoid serious personal injury, always turn the unit off and allow it to cool before you

clean or service it.

Fig. 26

Air Filter Cover

Air Filter

Ta b

WARNING:

To avoid serious personal injury, always turn the unit off and allow it to cool before

cleaning or servicing it.

CONSIGNES DE SÉCURITÉ

SERVICE TECHNIQUE

TABLE DES MATIÈRES

Service technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Consignes de sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Familiarisez-vous avec votre appareil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Instructions de montage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Informations sur l'huile et le carburant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Instructions de démarrage et d'arrêt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Mode d'emploi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Entretien et réparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Nettoyage et entreposage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Tableau de dépannage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Caractéristiques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Garantie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Toutes les informations, illustrations et spécifications contenues dans ce manuel tiennent compte des dernières
informations techniques disponibles au moment de mettre sous presse. Nous nous réservons le droit d'y apporter
des modifications à tout moment, sans préavis.

Copyright © 2010 MTD SOUTHWEST INC., Tous droits réservés.

NE RAMENEZ PAS CET APPAREIL CHEZ LE DÉTAILLANT. UNE PREUVE D’ACHAT SERA
EXIGÉE POUR TOUTE PRISE EN CHARGE DANS LE CADRE DE LA GARANTIE.

Si vous éprouvez des difficultés à assembler ce produit ou si vous avez des questions sur les commandes,
l’utilisation ou l’entretien de cet appareil, veuillez contacter le service à la clientèle : 1-877-282-8684 (E.U.)
ou 1-800-668-1238 (Canada)

Des informations supplémentaires sont disponibles sur notre site web : www.cubcadet.com (E.U.) ou
www.cubcadet.ca (Canada)

Pour un entretien ou une réparation, veuillez appeler le service à la clientèle pour obtenir une liste
complète des concessionnaires agrées près de chez vous. L’entretien de cet appareil doit être confié
exclusivement à un concessionnaire agrée pendant et après la période de garantie. Lors de
l’entretien, utilisez uniquement des pièces de rechange identiques.

Les symboles de sécurité attirent votre attention sur des dangers potentiels. Ces symboles et leurs
détails explicatifs méritent que vous les lisiez et compreniez bien. Les avertissements de sécurité
ne peuvent éviter les dangers de par eux-mêmes. Les consignes ou mises en garde qu'ils donnent
ne remplacent pas des mesures préventives appropriées contre les accidents.

REMARQUE: donne des informations ou des instructions vitales pour le fonctionnement ou

l'entretien de l'équipement.

SYMBOLE SIGNIFICATION

PARE-ÉTINCELLES
REMARQUE: à l'intention des utilisateurs opérant dans les terres forestières des États-Unis et dans les états

de Californie, du Maine, de l'Orégon et de Washington. Toutes les terres forestières des États-Unis et de l'état

de Californie (Codes sur les ressources publiques 4442 et 4443), de l'Orégon et de Washington exigent de par la loi
que certains moteurs à combustion interne utilisés dans des zones couvertes de taillis ou d'herbe soient équipés
d'un pare-étincelles en parfait état de fonctionnement, ou qu'ils soient conçus, équipés et entretenus pour la
prévention des incendies. Renseignez-vous auprès des autorités de votre province ou de votre municipalité
concernant la réglementation en vigueur. Vous pourriez être passible d'une amende ou être tenu responsable si
vous ne respectez pas cette réglementation. Cet appareil est équipé d'un pare-étincelles en usine. Si l'écran pare-

étincelles, réf.

753-05444

, doit être remplacé, communiquez avec le service technique.

• IMPORTANTES CONSIGNES DE SÉCURITÉ •

Lisez le(s) manuel(s) de l'utilisateur et suivez tous les avertissements et consignes de sécurité. Vous

pourriez à défaut entraîner des blessures graves pour vous ou d'autres personnes.

SI VOUS AVEZ DES QUESTIONS, APPELEZ LE 1-877-282-8684 AUX ÉTATS-UNIS, OU LE 1-800-668-1238

AU CANADA

ALERTE DE SÉCURITÉ:

indique un danger, un avertissement ou une mise en garde.
Soyez vigilant afin d'éviter toute blessure grave. Ce symbole peut être combiné à d'autres
symboles ou pictogrammes.

DANGER:

l e non-respect d’un avertissement peut causer dommages matériels ou
blessures graves pour tous. Respectez les consignes de sécurité afin de réduire les risques
d'incendie, d'électrocution et de blessures.

AVERTISSEMENT:

le non-respect d’un avertissement peut causer dommages
matériels ou blessures graves pour tous. Respectez les consignes de sécurité afin de
réduire les risques d'incendie, d'électrocution et de blessures.

MISE EN GARDE:

le non-respect d’un avertissement peut causer dommages
matériels ou blessures graves pour tous. Respectez toujours les consignes de sécurité afin
de réduire les risques d'incendie, d'électrocution et de blessures.

LIRE TOUTES LES INSTRUCTIONS AVANT UTILISATION

• Veuillez lire les instructions avec soin. Familiarisez-vous avec les commandes et l'utilisation correcte de
cet appareil.

• N'utilisez pas l'appareil si vous êtes fatigué, malade ou sous l'effet de l'alcool, de drogues ou de
médicaments.

• Les enfants et adolescents de moins de 15 ans ne doivent pas utiliser l'appareil exceptés les
adolescents assistés d'un adulte.

• Inspectez l'appareil avant utilisation. Remplacez les pièces endommagées. Regardez s'il y a des fuites
de carburant. Assurez-vous que les fixations sont solidement en place. Remplacez les pièces de
l'accessoire de coupe qui sont fendillées, ébréchées ou endommagées. Assurez-vous que l'accessoire
de coupe est correctement installé et solidement fixé. Assurez-vous que le protecteur d'accessoire de
coupe est correctement fixé et positionné comme recommandé. Vous risquez sinon de causer des
blessures à l'opérateur et aux spectateurs, et d'endommager l'appareil.

• N'utilisez que du fil de remplacement d’origine du fabricant de 2,67 mm, 0,105 po de diamètre. N'utilisez
jamais de fil, de chaîne ou de cordon à renfort métallique car ils peuvent se briser et se transformer en
projectile dangereux.

• Soyez conscient des risques de blessure à la tête, aux mains et aux pieds.

•

Dégagez la zone de coupe avant chaque usage. Enlevez tous les objets pouvant être projetés ou happés
par l'accessoire de coupe : cailloux, verre brisé, clous, fil ou ficelle. Éloignez enfants, spectateurs et animaux
de la zone de coupe. Tenez-les à au moins 15 m (50 pi) de là mais sachez que les spectateurs risquent
quand même d'être atteints par des objets projetés. Les spectateurs doivent porter des protections
oculaires. Arrêtez immédiatement le moteur et l'accessoire de coupe si quelqu'un s'approche de vous.

• Appuyez sur la manette des gaz et assurez-vous qu'elle revient automatiquement en position de ralenti.
Procédez à tous les réglages ou réparations avant d'utiliser l'appareil.

AVERTISSEMENTS DE SÉCURITÉ SPÉCIAUX POUR TÊTES D’ENTRAÎNEMENT À ESSENCE

• Stockez uniquement le carburant dans des conteneurs prévus spécifiquement à cet effet et approuvés
pour le stockage de telles substances.

• Coupez toujours le moteur et laissez-le refroidir avant de remplir le réservoir d’essence. Ne retirez jamais
le bouchon du réservoir d’essence et ne remplissez jamais ce dernier lorsque le moteur est chaud.
Dévissez lentement le bouchon du réservoir d’essence afin de réduire la pression avant de le remplir. Ne
fumez pas.

• Ajoutez le carburant dans un endroit bien aéré et propre, en plein air, à l’abri des sources d’étincelles ou
flammes vives.

• Ne démarrez jamais l’appareil sans avoir bien revissé le bouchon du réservoir d’essence.

• Évitez tout ce qui pourrait enflammer le carburant renversé. L’essence s’étant échappée de l’appareil doit
être essuyée immédiatement avant de démarrer l'appareil. Éloignez l’appareil d’au moins 9,1 m (30 pieds)
du site et de la source du carburant avant de démarrer le moteur. Ne fumez pas.

• L'appareil ne doit pas être démarré ou utilisé à l'intérieur d'un espace ou d’un bâtiment clos. Inhaler les
fumées du pot d’échappement peut provoquer la mort. Cet appareil doit fonctionner uniquement en
extérieur, dans une zone bien aérée.

PENDANT L'UTILISATION DE L'APPAREIL

•

Portez des lunettes de sécurité conformes aux normes ANSI Z87.1 ainsi que des protège-oreilles durant
l'utilisation de l'appareil. Portez un masque facial ou antipoussières si vous travaillez dans un lieu
poussiéreux.

• Portez des pantalons épais et longs, des bottes, des gants et une chemise à manches longues. Ne
marchez pas pieds nus et évitez les vêtements lâches, bijoux, pantalons courts et sandales. Relevez les
cheveux au-dessus des épaules.

• Le protecteur d'accessoire de coupe doit toujours être en place lors de l'utilisation de l'appareil. Ne faites
pas marcher l'appareil sans que les deux fils soient bien déployés, en supposant qu'un fil approprié a été
installé. Assurez-vous que le fil ne dépasse pas le protecteur de sécurité.

• Cet appareil est muni d'un embrayage. L'accessoire de coupe reste stationnaire lorsque le moteur est au
ralenti. Si ce n'est pas le cas, faites régler l'appareil par un technicien agréé.

• Ajustez la poignée selon votre taille pour mieux l'agripper.

• N'utilisez l'appareil qu'en plein jour ou avec un bon éclairage artificiel.

• Évitez tout démarrage accidentel. Mettez-vous en position de démarrage chaque fois que vous tirez sur
la corde de démarrage. L'opérateur et l'appareil doivent tous deux être en position stable à ce moment­là. Voir les Instructions de démarrage et d'arrêt.

• Ne vous étirez pas. Tenez-vous toujours bien sur vos pieds en position d'équilibre.

• Tenez toujours l'appareil des deux mains lorsque vous le faites marcher. Agrippez fermement les
poignées avant et arrière.

• Gardez les mains, le visage et les pieds éloignés des pièces mobiles. Ne touchez pas et n'essayez pas
d'arrêter l'accessoire de coupe en rotation.

• Ne touchez pas le moteur, le boîtier d'engrenages ni le silencieux. Ces pièces deviennent très chaudes à
l'utilisation. Elles restent chaudes brièvement après l'arrêt.

• Servez-vous des outils appropriés. N'utilisez cet outil que pour son usage prévu.

• Ne faites pas fonctionner le moteur à un régime plus élevé que nécessaire pour couper, tailler ou faire les
bordures. Ne faites pas tourner le moteur à haut régime si vous ne vous faites pas de coupe.

AVERTISSEMENT:

Lorsque vous utilisez la machine, vous devez suivre les consignes de
sécurité. Veuillez lire ces instructions avant d’opérer la machine pour vous assurer de la sécurité
de l’opérateur et de tout spectateur. Veuillez conserver ces instructions pour un usage ultérieur.

Manuel de l’utilisateur

ST4125

Désherbeuse à 4-temps

769-06523 P00 (12/10)

PROPOSITION DE LOI 65 DE CALIFORNIE
AVERTISSEMENT :

La fumée d’échappement du moteur, certains constituants et
composants finis contiennent ou émettent des produits chimiques connus de l’État de
Californie comme étant à l’origine de cancers, de malformations congénitales ou autres
anomalies de la reproduction. Lavez-vous les mains après manipulation.

AVERTISSEMENT:

L'essence est extrêmement inflammable et ses vapeurs peuvent

exploser si on y met le feu. Veuillez prendre les précautions suivantes.