Tabla De Contenido; Service Information; Rules For Safe Operation - Troy-Bilt TB21 EC Manual Del Operador

TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Maintenance & Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Optional Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
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© 2012 MTD SOUTHWEST INC, All Rights Reserved.

SERVICE INFORMATION

For service call 1-800-828-5500 in the United States or 1-800-668-1238 in Canada to obtain a list of authorized
service dealers near you. For more details about your unit, visit our website at www.troybilt.com or
www.troybilt.ca.
If you have difficulty assembling this product or have any questions regarding the controls, operation or
maintenance of this unit, please call the Customer Support Department.
DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF PURCHASE WILL BE REQUIRED FOR
WARRANTY SERVICE.
Service on this unit both within and after the warranty period should be performed only by an authorized and
approved service dealer.

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.
SYMBOL MEANING
DANGER:
Signals an EXTREME hazard.
Failure to obey a safety DANGER signal WILL result in serious injury or death to yourself or
to others.
WARNING:
Signals a SERIOUS hazard.
Failure to obey a safety WARNING signal CAN result in serious injury to yourself or to others.
CAUTION:
Signals a MODERATE hazard.
Failure to obey a safety CAUTION signal MAY result in property damage or injury to
yourself or to others.
NOTE: Advises you of information or instructions vital to the operation or maintenance of the
equipment.
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 grass-
covered 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 #753-06182 Muffler Assembly.
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.
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 1-800-828-5500 IN U.S. OR 1-800-668-1238 IN CANADA
• IMPORTANT SAFETY INSTRUCTIONS •
READ ALL INSTRUCTIONS BEFORE OPERATING
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.
• 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 approached, stop the unit immediately.
• Use only 0.095 inch (2.41 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
WARNING:
Gasoline is highly flammable and its vapors can explode if ignited. Take the
following precautions:
• 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 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.
• Always mix and add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. DO NOT smoke.
2
RULES FOR SAFE OPERATION
• 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
unit. Move the unit at least 30 ft. (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. Operate this unit only in a well
ventilated outdoor area.
WHILE OPERATING
• Wear safety glasses or goggles that are marked as meeting ANSI Z87.1 standards. Also wear ear/hearing protection when
operating this unit. Wear a face or dust mask if the operation is dusty. Long sleeve shirts are recommended.
• Wear heavy, long pants, boots and gloves. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure
hair above shoulder level.
• The cutting head shield 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 shield.
• The cutting attachment may spin during idle speed adjustments. Wear protective clothing and observe all safety
instructions to prevent serious personal injury.
• Adjust the D-handle to provide 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.
• 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. See Starting/Stopping Instructions.
• Use the right tool. Only use this tool for the purpose intended.
• Do not overreach. Always keep proper footing and balance.
• Always hold the unit with both hands when operating. Keep a firm grip on both the front and rear handle or grips.
• 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 or muffler. These parts get extremely hot from operation. They remain hot for a short time after
turning off the unit.
• 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.
• This unit has an overspeed protection switch to keep the unit from overheating. When the unit is run at full throttle
while not in use for extended lengths of time the overspeed protection switch will engage.
• Always stop the engine when cutting is delayed or when walking from one cutting location to another.
• If the unit is struck or becomes 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 and switch the engine to off for maintenance, repair, or for changing the cutting head or other Add-Ons.
• Use only original equipment manufacturer replacement parts and accessories for this unit. These are available from an
authorized service dealer. The use of any unauthorized parts or accessories could lead to serious injury to the user, or
damage to the unit, and void the warranty.
• Keep unit clean of vegetation and other materials. They may become lodged between the cutting head and shield.
• To reduce fire hazard, 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.
• 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 the Cleaning and Storage instructions.
• Keep these instructions. Refer to them often and use them to instruct other users. If loaning someone this unit, also loan
them these instructions.
SAVE THESE INSTRUCTIONS
• 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.
SYMBOL MEANING
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used in conjunction with other symbols
or pictographs.
• 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 standards and ear protection when
operating this unit. Use a full face shield when needed.
• UNLEADED FUEL
Always use clean, fresh unleaded fuel
• ON/OFF STOP CONTROL
ON / START / RUN
• ON/OFF STOP CONTROL
OFF or STOP
• 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.
• 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.
• KEEP BYSTANDERS AWAY
WARNING:
Keep all bystanders, especially children and pets, at least 50 feet (15 m.)
from the operating area.
• 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.
• OIL
Refer to operator's manual for the proper type of oil.
• CHOKE CONTROL
1. • FULL choke position
2. • PARTIAL choke position
3. • RUN choke position
• SHARP BLADE
WARNING:
Sharp blade on cutting attachment shield. To prevent serious injury, do
not touch the line cutting blade.