Homelite UT20818 User Manual
OPERATOR'S MANUAL
30cc String Trimmer
Versa Tool™ Model No. UT20818
Your new trimmer has been engineered and manuf actured to Homelite’s high standard for dependability, ease of operation, and
operator safety . Properly cared f or, it will giv e you years of rugged, trouble-free perf ormance.
WARNING: To reduce the risk of injury, the user must read and understand the oper ator’s manual.
Thank you for b uying a Homelite trimmer.
SAVE THIS MANUAL FOR FUTURE REFERENCE
TABLE OF CONTENTS
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■ Introduction ................................................................................................................................................................. 2
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■ Important Safety Instructions .................................................................................................................................2 - 3
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■ Symbols ...................................................................................................................................................................... 4
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■ Specifications..............................................................................................................................................................5
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■ Unpacking ................................................................................................................................................................... 5
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■ Features ...................................................................................................................................................................... 5
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■ Assembly ...............................................................................................................................................................6 - 7
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■ Operation..............................................................................................................................................................8 - 10
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■ Maintenance ....................................................................................................................................................... 12 - 13
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■ Troubleshooting................................................................................................................................................... 14 - 15
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■ Warranty ............................................................................................................................................................. 16 - 18
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■ Service Parts............................................................................................................................................................. 19
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■ Parts Ordering / Service ............................................................................................................................................ 20
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INTRODUCTION
Trimming weeds and grass is an easy task using this Homelite string trimmer. Saf ety, performance, and dependability hav e
been given top priority in the design of this string trimmer making it easy to maintain and operate.
WARNING
Do not attempt to operate this trimmer until you have read thoroughly and understand completely all instructions,
safety rules, etc. contained in this manual. Failure to comply can result in accidents involving fire, electric shock,
or serious personal injury. Save operator's manual and review frequently for continuing safe operation, and
instructing others who may use this tool.
IMPORTANT SAFETY INSTRUCTIONS
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■ Clear the work area before each use. Remove all objects
READ ALL INSTRUCTIONS
GENERAL SAFETY RULES
■ For safe operation, read and understand all instructions
before using the trimmer. Follow all safety instructions.
Failure to follow all safety instructions listed below, can
result in serious personal injury.
■ Do not allow children or untrained individuals to use this
unit.
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■ Never start or run the engine in a closed or poorly
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ventilated area; breathing exhaust fumes can kill.
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such as rocks, broken glass, nails, wire, or string which
can be thrown or become entangled in the string head or
blade.
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■ Wear eye and hearing protection while operating this
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unit.
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■ Wear heavy long pants, boots, and gloves. Do not wear
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loose fitting clothing, short pants, jewelry of any kind, or
go barefoot.
Page 2
IMPORTANT SAFETY INSTRUCTIONS
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■ Product users on United States Forest Service land, and
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in some states, must comply with fire prevention regulations. This product is equipped with a spark arrestor;
however, other user requirements may apply. Check with
your federal, state, or local authorities.
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■ Wear eye protection which is marked to comply with
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ANSI Z87.1 as well as hearing protection when operating
this equipment.
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■ Wear heavy long pants, shoes, and gloves.
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■ Keep all bystanders, children, and pets at least 50 feet
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(15 m) away.
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■ Do not wear loose clothing, or jewelry.
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■ Secure long hair so it is above shoulder level to prevent
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entanglement in any moving parts.
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■ Do not operate this trimmer when you are tired, ill, or
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under the influence of alcohol, drugs, or medication.
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■ Do not operate in poor lighting.
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■ Keep firm footing and balance. Do not overreach.
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Overreaching can result in loss of balance or exposure
to hot surfaces.
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■ Keep all parts of your body away from any moving part.
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■ Do not touch area around the muffler or cylinder of the
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trimmer, these parts get hot from operation.
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■ Always stop the engine and remove the spark plug wire
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before making any adjustments or repairs except for
carburetor adjustments.
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■ It has been reported that vibrations from hand-held tools
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may contribute to a condition called Raynaud’s Syndrome in certain individuals. Symptoms may include
tingling, numbness and blanching of the fingers, usually
apparent upon exposure to cold. Hereditary factors,
exposure to cold and dampness, diet, smoking and work
practices are all thought to contribute to the development
of these symptoms. It is presently unknown what, if any,
vibrations or extent of exposure may contribute to the
condition. There are measures that can be taken by the
operator to possibly reduce the effects of vibration:
a) Keep your body warm in cold weather. When operat-
ing the unit wear gloves to keep the hands and wrists
warm. It is reported that cold weather is a major
factor contributing to Raynaud’s Syndrome.
b) After each period of operation, exercise to increase
blood circulation.
c) Take frequent work breaks. Limit the amount of
exposure per day.
d) Keep the tool well maintained, fasteners tightened
and worn parts replaced.
If you experience any of the symptoms of this condition,
immediately discontinue use and see your physician
about these symptoms.
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■ Mix and store fuel in a container approved for gasoline.
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■ Mix fuel outdoors where there are no sparks or flames.
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Wipe up any fuel spillage. Move 30 ft. (9 m) away from
refueling site before starting engine.
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■ Stop the engine and allow to cool before refueling or
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storing the unit.
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■ Allow the engine to cool; empty the fuel tank and secure
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the unit from moving before transporting in a vehicle.
SPECIFIC SAFETY RULES FOR TRIMMER USE
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■ Replace string head if cracked, chipped, or damaged in
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any way. Be sure the string head is properly installed
and securely fastened. Failure to do so can cause
serious injury.
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■ Make sure all guards, straps, deflectors and handles are
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properly and securely attached.
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■ Use only the manufacturer's replacement string in the
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cutting head. Do not use any other cutting attachment.
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■ Never operate unit without the grass deflector in place
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and in good condition.
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■ Maintain a firm grip on both handles while trimming. Keep
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string head below waist level. Never cut with the string
head located over 30 in. (76 cm) or more above the
ground.
Page 3
SYMBOLS
Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning.
Proper interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME EXPLANATION
Safety Alert Symbol Indicates danger, warning or caution. It means
attention!!! Your safety is involved.
Read Your Operator’s Manual Your manual contains special messages to
bring attention to potential safety concerns,
machine damage as well as helpful operating a n d
servicing information. Please read all the
information carefully to avoid injury and machine
damage.
Wear eye and hearing protection. Wear eye protection which is marked to comply
with ANSI Z87.1 as well as hearing protection
when operating this equipment.
Keep bystanders away. Keep all bystanders at least 50 feet (15 m)
away.
Ricochet. Danger of Ricochet.
No blade. Do not install any type of blade on this unit.
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the explanations
with them, 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: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in serious
injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices that may cause property damage.
NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.
SAVE THESE INSTRUCTIONS
Page 4
SPECIFICATIONS
Weight - (without fuel) ............................................................................................................................ 9.1 lbs. (4.13 kg.)
Cutting swath............................................................................................................................................ 17 in. (432 mm)
Engine displacement ................................................................................................................................................. 30cc
String diameter ........................................................................................................................................080 in. (2.0 mm)
FEATURES
UNPACKING
INSTRUCTIONS
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■ Carefully remove the product from the carton.
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■ Inspect the product to make sure no breakage or
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damage occurred during shipping.
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■ Do not discard the packing material until you have
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inspected and operated the product.
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■ If any parts are damaged or missing, please call
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1-800-chainsaw (1-800-242-4672) for assistance.
FEATURES
FEATURES
THROTTLE CONTROL
AND REAR HANDLE
IGNITION SWITCH
PACKING LIST
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■ Trimmer Assembly
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■ Owner’s Kit
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■ Front handle
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■ Grass Deflector
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■ Hanger cap
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■ Hardware Bags (2)
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■ Bottle of 2-Cycle Oil
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■ Operator's manual
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CHOKE LEVER
LOWER SHAFT
HOUSING
STARTER GRIP
FRONT HANDLE
THROTTLE TRIGGER
COUPLER
UPPER SHAFT
HOUSING
KNOB
GRASS DEFLECTOR
STRING HEAD
Fig. 1
Page 5
ASSEMBLY
ATTACHING THE POWER HEAD TO THE
TRIMMER ATTACHMENT
See Figure 5.
WARNING:
Never attach or adjust any attachment while power head is
running. Failure to stop the engine can cause serious
personal injury.
The trimmer attachment connects to the power head by
means of a coupler device.
1. Loosen the knob on the coupler of the power head shaft.
2. Push in the button located on the trimmer attachment
shaft. Align the button with the guide recess on the
power head shaft and slide the two shafts together.
Rotate the trimmer attachment shaft until the button
locks into the positioning hole.
NOTE: If the button does not release completely in the
positioning hole, the shafts are not locked into place.
Slightly rotate from side to side until the button is locked into
place.
3. Tighten the knob securely.
GUIDE RECESS
POSITIONING
TRIMMER ATTACHMENT
UPPER SHAFT
HOUSING
COUPLER
KNOB
HOLE
Fig. 2
WARNING:
Be certain the knob is fully tightened before operating
equipment; check it periodically for tightness during use
to avoid serious injury.
REMOVING THE ATTACHMENT FROM THE
POWER HEAD
For removing or changing the attachment:
1. Loosen the knob.
2. Push in the button and twist the shafts to remove and
separate ends.
ATTACHING THE STORAGE HANGER
See Figure 6.
There are two ways to hang your attachment for storage.
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■ To use the hanger cap, push in the button and place the
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hanger cap over end of the lower end attachment shaft.
Slightly rotate the cap from side to side until the button
locks into place.
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■ The secondary hole in the attachment shaft can be used
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for hanging purposes as well.
HANGER CAP
HOLE
BUTTON
Fig. 3
Page 6
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