Yard-Man LT31 User Manual

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Operator’s Manual

LT31 2-Cycle

Petrol Trimmer

IMPORTANT: Read safety rules and instructions carefully before operating equipment.

PRINTED IN U.S.A.

 

PART NO. 769-00828

(9/03)

TABLE OF CONTENTS

 

Content

Page

Important Safe Operation Practices...............................................................

3

Know Your Trimmer ........................................................................................

6

Assembling Your Trimmer...............................................................................

7

Operating Your Trimmer..................................................................................

8

Maintaining Your Trimmer.............................................................................

11

Off-Season Storage......................................................................................

16

Troubleshooting ............................................................................................

17

Specifications ...............................................................................................

18

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new trimmer. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.

Before you start assembling your new equipment, please locate the model plate on the unit and copy the information from it to the space provided below. The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer.

• Locate the model number on the engine next to the shroud. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below.

 

MODEL :

S/N :

ITEM :

Copy the model and parent part number here:

Copy the serial number here:

2

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

This Symbol Points Out Important Safety Information 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 Your Cultivator. FailureTo Comply With These Instructions May Result In Personal Injury. When You See This Symbol–Heed Its Warning.

SAFETY ALERT SYMBOL: 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.

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

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.

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 under the age of 15 must not use the unit; teens can use the unit under adult guidance.

Inspect the unit before use. Replace damaged parts. Check for petrol leaks. Make sure all fasteners are in place and secure. Replace cutting head parts that are cracked, chipped, or damaged in any way. Make sure the cutting head is properly installed and securely fastened. Be sure the cutting head guard is properly attached, and positioned as recommended. Failure to do so can result in personal injury to the operator and bystanders, as well as damage to the unit.

Use only 2.03 mm (0.080 inch) diameter original equipment replacement line. Never use metalreinforced line, wire, or rope, etc. These can break off and become a dangerous projectile.

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

Clear the area to be cut before each use. Remove all objects such as rocks, broken glass, nails, wire or string which can be thrown or become entangled in the cutting head.

Keep children, bystanders and pets outside a 15 meter (50 ft.) radius, at a minimum. They may still be at risk due to thrown objects. Encourage bystanders to wear eye protection. If you are approached, stop the engine and cutting head immediately.

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

This unit was not designed to be used as a brushcutter. Do not attach or operate this unit with any type of brushcutting blade or brushcutting attachment.

SAFETY WARNINGS FOR PETROL TRIMMERS

WARNING: Petrol (gasoline) is highly flammable, and its vapors can explode if ignited. Take the following precautions:

Store petrol 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 cap of the fuel tank, or add petrol, when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap slowly to relieve any pressure in the tank.

Add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Slowly remove the fuel cap only after stopping engine. Do not smoke while fueling or mixing fuel. Wipe up any spilled fuel from the unit immediately.

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

Move the unit at least 9.1 m (30 feet) from the fueling source and site before starting the engine. Do not smoke, keep sparks and open flames from the area while adding fuel or operating the unit.

3

WHILE OPERATING

Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Operate this unit only in a well ventilated area outdoors.

Wear safety glasses or goggles and 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 head guard must always be in place while operating the unit. 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 guard.

This unit does not have a clutch. The cutting head continues rotating when the engine is idling. Have the unit adjusted by an authorized service technician.

Adjust the D-Handle to your size to provide you with the best grip.

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

Use the unit only in daylight or good artificial light.

Always hold the unit with both hands when operating. Keep a firm grip on both the front and rear handle or grips.

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 the Starting/Stopping Instructions.

Use the right tool. Only use this tool for the purpose in which it was intended.

Do not overreach. Always keep proper footing and balance while operating unit.

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

Do not touch the engine, gear housing or muffler. These parts get extremely hot from operation. When turned off they remain hot for a short time.

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 wire for maintenance or repair.

Use only original equipment replacement parts and accessories for this unit. These are available from your authorized service dealer. Use of any non-MTD 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 head and guard.

To reduce fire hazard, replace 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 the unit with fuel in the tank 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. Refer to Off Season Storage.

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, referring to Off Season Storage.

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

4

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 and maintenance and repair information.

SYMBOL MEANING

SAFETY ALERT SYMBOL

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

WARNING - READ

OPERATOR'S MANUAL

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.

PRIMER

Push primer bulb, fully and slowly, 10 times.

UNLEADED PETROL

Always use clean, fresh unleaded petrol.

• OIL

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

SYMBOL MEANING

• THROWN OBJECTS CAN CAUSE SEVERE INJURY

WARNING: Keep clear of blower outlet. Never point the blower at yourself or others. Objects can be thrown from blower. Do not operate unit without proper attachments and guards in place.

ON/OFF STOP CONTROL

ON / START / RUN

ON/OFF STOP CONTROL

OFF or STOP

HOT SURFACE WARNING

Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation. They remain hot for a short time even after the unit is turned off.

SHARP BLADE

WARNING: Sharp blade on cutting head guard. To prevent serious injury, do not touch line cutting blade.

1

2

3 • CHOKE CONTROL

1. FULL choke position.

2.PARTIAL choke position.

3.RUN position.

• DO NOT USE BLADES

WARNING: To prevent serious personal injury, do not attach or operate the unit with any type of blade.

5

SECTION 2: KNOW YOUR TRIMMER

APPLICATIONS

As a trimmer:

Cutting grass and light weeds

Edging

Decorative trimming around trees, fences, etc.

Ignition

Switch

Fuel

Starter Cap

Rope Grip

Shaft

Grip

Throttle

Control

Choke

Lever

Shaft

 

Tube

Primer

 

 

Bulb

 

Spark Plug

Muffler

 

 

 

Air Filter/Muffler

Cover

Line Cutting Blade

Cutting Head Guard

Cutting Head

6

+ 14 hidden pages