Troybilt 25A-258J766 Owner’s Manual

Operator's Manual

22" String Trimmer

Mower

Model 258

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.

Inthe State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have

similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

TROY-BILT LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

PRINTED IN U.S.A. FORM NO. 769-00009E

(10/03)

TABLEOFCONTENTS

Content Page Content Page

Important Safe Operation Practices 3 Making Adjustments 9
Slope Gauge 6 Maintaining Your String Trimmer 10

Assembling Your String Trimmer 7 Trouble Shooting
Know Your String Trimmer Mower 8 Illustrated Parts List 14

Operating Your String Trimmer Mower g Warranty 16

FINDINGMODELNUMBER

This Operator's Manual is an important part of your new lawn mower. 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
equipment and copy the information from it in the space provided below. A sample model plate is
also given below. You can locate the model plate by standing at the operating position and
looking down at the rear of the unit. This information will be necessary to use the
manufacturer's web site and/or help from the Customer Support Department or an authorized

service dealer.

Copy the model number here:

Copy the serial number here:

CUSTOMERSUPPORT

PleasedoNOTreturntheunit totheretailer fromwhere it waspurchased,without firstcontactingCustomerSupport.

If you have difficulty assembling this productor have any questions regarding the controls, operation or
maintenance of this unit, you can seek help from the experts. Choose from the options below:

Visit troybilt.com for many useful suggestions. Click on Customer Support buttonand you will
get the four options reproduced here. Click on the appropriate button and help is immediately

available.

i

The engine manufacturer is responsible for all engine-related issues with regards to
performance, power-rating, specifications, warranty to engine

manufacturer's Owner's/Operator's Manual, packed separately with your unit, for more
information.

and service. Please refer the

SECTION1: IMPORTANTSAFEOPERATIONPRACTICES

WARNING: This symbol points out important safety instructions 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 this machine. Failure to comply with these instructions may

result in personal injury. When you see this symbol - heed its warning.

WARNING: Engine Exhaust, some of its constituents, and certain vehicle

components contain or emit chemicals known to State of California to cause cancer

and birth defects or other reproductive harm.

DANGER: This machine was built to be operated according to the rules for safe operation inthis

manual. As with any type of power equipment, carelessness or error on the part of the operator can
result in serious injury. This machine is capable of amputating hands and feet and throwing objects.
Failure to observe the following safety instructions could result in serious injury or death.

GeneralOperation

1. Read this operator's manual carefully in its entirety
before attempting to assemble this machine. Read,

understand, and follow all instructions on the
machine and in the manual(s) before operation. Be

completely familiar with the controls and the proper
use of this machine before operating it. Keep this
manual in a safe place for future and regular
reference and for ordering replacement parts.

2. This machine is a precision piece of power
equipment, not a plaything. Therefore, exercise

extreme caution at all times. Your unit has been
designed to perform one job: to cut vegetation and

grass. Do not use it for any other purpose.

3. Never allow children under 14 years old to operate

this machine. Children 14 years old and over

should read and understand the operation
instructions and safety rules inthis manual and
should be trained and supervised by an adult. Only
responsible individuals who are familiar with these
rules of safe operation should be allowed to use

this machine.

4. Thoroughly inspect the area where the equipment
is to be used. Remove all stones, sticks, wire,

bones, toys, and other foreign objects which could
be tripped over or picked up and thrown by the
string trimmer mower in any direction which could
cause serious personal injury to the operator or any
others allowed in the area. Plan your trimming
pattern to avoid discharge of material toward
building, walls, roads, sidewalks, bystanders and

the like. To help avoid trimmer line contact or a
thrown object injury, keep children, bystanders, and

helpers at least 75 feet from the string trimmer
mower while it is in operation. Stop the string

trimmer mower if anyone enters the area.

5. Always wear safety glasses or safety goggles
during operation or while performing an adjustment
or repair, to protect eyes from foreign objects that
may be thrown from the machine in any direction.

6. Wear sturdy, rough-soled work shoes and close-
fitting slacks and shirts. Shirts and pants that cover
the arms and legs and steel-toed shoes are
recommended. Never operate a unit in bare feet,
sandals, slippery or light weight (e.g. canvas)

shoes.

7. Do not put hands or feet near or under rotating
parts. Keep clear of discharge area at all times as
the rotating trimmer head and lines can cause
injury.

8. Never pull the string trimmer mower back toward
you while you are walking. If you must back the
string trimmer mower away from a wall or

obstruction first look down and behind, and then
follow these steps:

a. Step back from the string trimmer mower to

fully extend your arms.

b. Be sure you are well balanced with sure

footing.

c. Pull the string trimmer mower back slowly, no

more than half way toward you.

d. Repeat these steps as needed.

5. Do not operate the string trimmer mower while
under the influence of alcohol or drugs.

6. The trimmer head control handle is a safety device.
Never attempt to bypass its operation. Doing so

makes the safety device inoperative and may result
in personal injury through contact with the rotating

head or lines. The trimmer head control handle
must operate easily in both directions and

automatically return to the disengaged position
when released.

7. Disengage the trimmer head before starting the
engine.

8. Never operate the string trimmer mower in wet
grass. Always be sure of your footing. A slip and fall
can cause serious personal injury. If you feel you
are losing your footing, release the trimmer head
control handle immediately and the trimmer head
will stop rotating within a few seconds.

9. Trimormowonlyindaylightorgoodartificiallight.
Walkneverrun.

10.Stopthetrimmerheadwhencrossinggraveldrives,
walksorroads.

11.Iftheequipmentshouldstarttovibrateabnormally,

stoptheengineandcheckimmediatelyforthe
cause.Vibrationisgenerallyawarningoftrouble.

12.Shuttheengineoffandwaituntilthetrimmerhead

comestoacompletestopbeforereplacingtrimmer
line,makinganyadjustmentorrepairs.Thetrimmer

headcontinuestorotateforafewsecondsafterthe
engineisshutoff.Neverplaceanypartofthebody

inthetrimmerheadareauntilyouaresurethe
bladehasstoppedrotating.

13.Neveroperatethestringtrimmermowerwithout

propershields,guards,trimmerheadcontrol
handleorothersafetyprotectivedevicesinplace
andworking.Neveroperatethestringtrimmer
mowerwithdamagedsafetydevices.Failuretodo
so,canresultinpersonalinjury.

14.Mufflerandenginebecomehotandcancausea

burn.Donottouch.

15.Onlyusepartsandaccessoriesmadeforthisstring
trimmermowerbythemanufacturer.Failuretodo

so,canresultinpersonalinjury.

16.Ifsituationsoccurwhicharenotcoveredinthis

manual,usecareandgoodjudgment.Contactyour
dealerforassistance.Telephone[phone]

forthenameofyournearestdealer.

3. Do not trim or mow on wet grass. Unstable footing
could cause slipping.

Children

Tragic accidents can occur ifthe operator is not alert to the
presence of children, Children are often attracted to the

string trimmer mower and the trimming or mowing activity,
They do not understand the dangers, Never assume that

children will remain where you last saw them,

1. Keep children out of the trimming or mowing area
and under the watchful care of a responsible adult
other than the operator.

2. Be alert and turn string trimmer mower off if a child
enters the area.

3. Before and while moving backwards, look behind
and down for small children.

4. Use extreme care when approaching blind corners,
shrubs, trees, or other objects that may obscure
your vision of a child who may run into the string

trimmer mower.

5. Keep children away from hot or running engines.
They can suffer burns from a hot muffler.

6. Never allow children under age 14 to operate a
string trimmer mower. Children 14 years of age and
over should read and understand the operation
instructions and safety rules in this manual and
should be trained and supervised by an adult.

Service

SlopeOperation

Slopes are a major factor related to slip and fall accidents
which can result in severe injury, Operation on slopes
requires extra caution, If you feel uneasy on a slope, do not
trim or mow it. For your safety, use the slope gauge included
as part of this manual to measure slopes before operating
this unit on a sloped or hilly area. Ifthe slope is greater than
15 degrees, do not trim or mow it,

Do:

1. Trim or mow across the face of slopes; never up or
down. Exercise extreme caution when changing
direction on slopes.

2. Watch for holes, ruts, hidden objects, or bumps.
Tall grass can hide obstacles.

3. Always be sure of your footing. A slip and fall can
cause serious personal injury. If you feel you are
losing your balance, release the trimmer head
control handle immediately, and the trimmer head

will stop rotating within afew seconds.

DoNot:

1. Do not trim or mow near drop-offs, ditches or
embankments. The operator could lose footing or

balance.

2. Do not trim or mow slopes greater than 15 degrees
as shown on the slope gauge on page 6.

SafeHandlingOfGasoline:

To avoidpersonal injuryor propertydamage use extreme
care in handling gasoline.Gasoline isextremely flammable
and the vapors areexplosive.Serious personalinjury can
occur when gasolineis spilledon yourself or your clothes
which can ignite, Washyourskin andchange clothes
immediately,

1. Use only an approved gasoline container.

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

3. Never fuel machine indoors because flammable
vapors will accumulate in the area.

4. Never remove gas cap or add fuel while the engine
is running. Allow engine to cool at least two minutes
before refueling.

5. Never over fill fuel tank. Fill tank to no more than 1/2
inch below bottom of filler neck to provide space for

fuel expansion.

6. Replace gasoline cap and tighten securely.

7. If gasoline is spilled, wipe it off the engine and
equipment. Move unit to another area. Wait 5
minutes before starting the engine.

8. Never store the machine or fuel container inside

where there is an open flame, spark, or pilot light as

on a gas water heater, space heater, furnace,
clothes dryer or other gas appliances.

9. To reduce fire hazard, keep the string trimmer
mower free of grass, leaves, or other debris build-

4

up. Clean up oil or fuel spillage and remove any fuel
soaked debris.

10. Allow mower to cool at least 5 minutes before
storing.

GeneralService:

1. Never run an engine indoors or in a poorly
ventilated area. Engine exhaust contains carbon
monoxide, an odorless and deadly gas.

2. Before cleaning, repairing, or inspecting, make
certain the trimmer head and all moving parts have
stopped. Disconnect the spark plug wire and
ground against the engine to prevent unintended
starting.

3. Check the trimmer head and engine mounting bolts
at frequent intervals for proper tightness. Also,
visually inspect trimmer head for damage. Replace

with the original equipment manufacture's (OEM)

parts only, listed in this manual. "Use of parts which
do not meet the original equipment specifications
may lead to improper performance and
compromise safety!"

4. Keep all nuts, bolts, and screws tight to be sure the
equipment is in safe working condition.

5. Never tamper with safety devices. Check their
proper operation regularly.

6. After striking a foreign object, stop the engine,

disconnect the spark plug wire and ground against
the engine. Thoroughly inspect the string trimmer
mower for any damage. Repair the damage before
starting and operating.

7. Never attempt to replace the trimmer line or make a
cutting height adjustment while the engine is
running.

8. Never use other lengths, diameters, or materials as
trimmer line. Doing so can result in personal injury.

9. Trimmer head components, guards, and shields
are subject to wear and damage which could
expose moving parts or allow objects to be thrown.

For safety protection, frequently check components
and replace immediately with original equipment
manufacturer's (OEM) parts only, listed in this
manual. "Use of parts which do not meet the
original equipment specifications may lead to
improper performance and compromise safety!"

10. Do not change the engine governor setting or
overspeed the engine.

11. Maintain or replace safety and instruction labels, as
necessary.

12. Observe proper disposal laws and regulations.

Improper disposal of fluids and materials can harm

the environment.

_:_ ARNING - YOUR RESPONSIBILITY: Restrict the use of this power machine to persons who read,

NOTE: Not all safety labels shown may apply to your string trimmer mower.

understand and follow the warnings and instructions inthis manual and on the machine,

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,_ WARNING

Do not trim or mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). A riding mower
could overturn and cause serious injury. If operating a walk-behind mower or trimmer on such a slope, it is extremely difficult to
maintain your footing and you could slip, resulting in serious injury.
Operate riding mowers up and down slopes, never across the face of slopes.
Operate walk-behind mowers or trimmers across the face of slopes, never up and down slopes.

SECTION3: ASSEMBLINGYOURSTRINGTRIMMERMOWER

IMPORTANT:This unit is shipped without gasoline or oil

in the engine. Be certain to service engine with gasoline
and oil as instructed in the separate engine manual
before operating your mower.

NOTE: Reference to right or left hand side of the string

trimmer mower is observed from the operating position.

RemovingUnitFromCarton

• Remove staples, break glue on top flaps, or cut
tape at carton end and peel along top flap to open

carton.

• Remove loose parts if included with unit (i.e.,

operator's manual, safety glasses, etc.)

• Cut along corners, lay carton down flat, and remove

packing material.

• Roll or slide unit out of carton and check carton
thoroughly for loose parts.

DisconnectingSparkPlugWire

Before setting up your string trimmer mower,
disconnect the spark plug wire from the spark plug. See
Figure 1.

Connector

Connector

Carriage

Bolt

Stud

o o

/ /

_Spark Plug _

IIw're\

Spark

Plug Wire

Figure 1

SettingUpYourStringTrimmerMower

• Loosen each wing nut enough to separate the

plastic connectors between the upper and lower
handle. Gently lift up and pull back on the upper

handle to raise the handle toward the operating
position. See Figure 2.

• Separate the connectors and position the bottom
tip of upper handle connector in front of the bottom
tip of lower handle connector. To secure the upper

and lower handle, tighten the wing nuts and

washers (carriage bolts must be seated properly

into the handle and grooves must line up between
connectors).

Figure 2

NOTE: If you wish to adjust the height of the upper

handle, refer to the Adjustment Section.

• Loosen the wing nut that secures rope guide to
handle. With the spark plug wire disconnected and

grounded, pull the starter rope out of the engine.
Slip the starter rope into the rope guide and tighten
the wing nut. See Figure 3.

• Tighten the cable tie on lower left side of handle,
making sure the round tab on tie seats nicely into

the hole in handle.

Control_ f
Lever _ CrorltkOltLock

Figure 3

SECTION4: KNOWYOURSTRINGTRIMMERMOWER

Control Lever

Control

Starter Handle

Handle

String Cutting
Blade Bracket-

Trimmer
Deflector Assembly

)indle Assembly

Line

Read this operator's manual and safety rules before
operating your string trimmer mower. Compare the

illustrations in Figure 4 with your string trimmer mower
to familiarize yourself with the location of various

controls and adjustments. Save this manual for future
reference.

ControlLever

The control lever must be depressed to engage the
spindle assembly. See Figure 4.

ControlLock Bracket
The control lock bracket is located on the upper right

handle. It is used to keep the spindle assembly
disengaged while the engine is running. See Figure 4.

StarterHandle
The starter handle isattached to the right upper handle.

Stand behind unit and pull the starter handle to start
engine. See Figure 4.

HandleConnectors

The handle connectors are on each side between lower
and upper handle. They are used to lock the upper

handle in a set position. See Figure 4.

StringCuttingBladeBracket

The string cutting blade bracket is attached to the
trimmer deflector assembly. It is used to cut the trimmer
line if it is too long. See Figure 4.

Figure 4

Trimmer DeflectorAssembly

The trimmer deflector assembly is connected to the
trimmer base and it is used to prevent yard debris from

being thrown. See Figure 4.

SpindleAssembly

The spindle assembly rotates the trimmer line.
Trimmer Line

The trimmer line is attached to the spindle assembly
and it is used to trim grass or weeds.

ThrottleControlLever (Not Shown)
The throttle control lever is located on the engine. It

controls the engine's speed and stops the engine. See
separate engine manual packed with unit for details.

EngineControls

See the separate engine manual for the location and

function of the controls on the engine.

StoppingEngine

• Release control lever to disengage the spindle
assembly and to lock it inthe control lock bracket.

• Move throttle control lever to STOP or OFF
position.

• Disconnect spark plug wire from spark plug and
ground against the engine.

SECTION5: OPERATINGYOURSTRINGTRIMMERMOWER

WARNING: Debris thrown from the string
trimmer mower can result in foreign
objects being thrown into the eyes, which
can cause severe eye damage. Always
wear safety glasses included with unit or
eye shields when operating the string

trimmer mower.

GasAndOilFill-Up

Service the engine with gasoline and oil as instructed in
the separate engine manual packed with your string
trimmer mower. Read instructions carefully.

engine running or until the engine has

WARNING: Never fill fuel tank indoors with
been allowed to cool for at least two

minutes after running.

StartingEngine

• Attach spark plug wire to spark plug. Make certain
the metal cap on the end of the spark plug is
fastened securely over the metal tip on the spark

plug. See separate engine operator's manual.

• Before each use, remove any debris from the

engine's air intake screen on top of engine. Debris
can cause engine to overheat.

• Prime engine as instructed in the separate engine

manual packed with your unit.

• Move throttle control lever on engine to FAST or

RUN position.

• Make sure control lever is disengaged and locked

in bracket.

• Stand behind the string trimmer mower and grasp

starter handle and pull rope out slowly until engine
reaches start of compression cycle (rope will pull
slightly harder at this point). Let the rope rewind
slowly. Pull rope with a rapid, continuous, full arm
stroke. Keeping a firm grip on the starter handle, let

the rope return to the starter slowly. Repeat until

engine starts.

NOTE: See your engine manual packed with your unit
for more detailed instructions.

WARNING: Never run the engine indoors
or in a poorly ventilated area. Engine
exhaust contains carbon monoxide, an
odorless and deadly gas. Keep hands,
feet, hair, and loose clothing away from
the trimmer and engine.

control lever. Doing so could result in

WARNING: Do not attempt to bypass the
serious personal injury or death.

UsingYourStringTrimmerMower

• Once the engine is started, release the control lock
bracket on the upper right hand side of the handle
by pushing it to the right and squeeze the control
handle against upper handle to engage spindle
assembly.

• The string trimmer mower is designed with the spin-
dle off-set to the left side. This allows the operator
to trim along a fence, landscaping, or a house with-
out having to make any adjustments to the spindle
assembly.

• If the weeds or grass are tall and thick, operate the
string trimmer mower at a slower walking speed.

• With the engine off and spark plug disconnected,
clean the underside of the trimmer before and after

each use to remove any grass or weed build up.

• If the trimmer lines become too short, approxi-
mately half the original length, or worn, itwill take
longer to complete the job. To change to a new

trimmer line see MAINTAINING YOUR STRING
TRIMMER MOWER.

• Do not trim on excessively steep slopes. If a slope
is difficult to stand on, do not trim. Do not trim on

slopes when the ground is slippery or wet. Trim
across the face of a slope, not up and down.

• Avoid spindle assembly contact to concrete,
asphalt, or gravel.

SECTION6: MAKINGADJUSTMENTS

adjustments without first stopping engine

WARNING: Do not at any time make any
and disconnecting spark plug wire.

HandleAdjustment

To adjust position of the upper handle proceed as
follows:

• Loosen each wing nut, so the carriage bolts are
unseated from the handle and the handle

connectors are slightly separated from each other.

• The lower handle connector has three marked lines
on the top and the upper handle connector has one

marked line. See Figure 5.

• To raise the upper handle, move the upper handle
forward to match the single marked line with the

front marked line on the lower handle connector.

• To lower the upper handle, move the upper handle
rearward to match the single marked line with the

rear marked line on the lower handle connector.

Securethehandleconnectorsinpositionby

tighteningeachwingnut(carriageboltsmustbe

seatedproperlyintothehandleandgroovesmust
lineupbetweenconnectors).Alsomakecertainthe
bottomtipoftheupperhandleconnectorinfrontof

thebottomtipoflowerhandleconnector.

SeeFigure5.

Marked

Lines

° The trimmer line is connected to the spindle disc,

which can be raised or lowered. See Figure 6.

° The spindle disc in the normal position rest on the

spindle cap approximately 2" off the ground.

° Loosen, but do not remove each wing nut on

spindle shaft.

not to be removed from the spindle shaft

WARNING: The wings nuts are designed

by hand or using a tool.

Wing Nut

Lower
Connector

Figure 5

jCarriage

Bolt

Connectors

Spindle HeightAdjustment

To adjust height of the spindle assembly proceed as
follows:

° Slide spindle disc along shaft to the desired

position and tighten wing nuts to secure in position.

° The spindle disc can be adjusted from 2" to 4".

Sl

Disc

S_ >indle
Cap Shaft

Figure 6

SECTION7: MAINTAININGYOURSTRINGTRIMMERMOWER

CustomerResponsibilities

Trimmer
Base

Nut

Trimmer
Line

MAINTENANCE _°_'_' _"°"_ ._'_'°"__'_'°'_ _'_e°_"_--°''_

SCHEDULE e_o,P .._<_ ,_o_ ._ O_.Oo<_o

LubricateWheels R_

b Clean Trimmer Deflector R_
8 Check Trimmer Line _:_

n_ Check Belt Tension

Check Oil R_

Change Oil _

LU ReplaceAir Filter _ R_

Z

_z Clean Engine IntakeScreen R_ R_

I.U

Check Spark Plug <_

CheckSpark Arrester (if any) _

10

SERVICE

DATES

WARNING: Always stop engine and
disconnect spark plug wire before
cleaning, lubricating or doing any kind of
maintenance on your string trimmer

mower.

cleaner, refer to the separate engine manual
packed with your unit.
The spark plug should be cleaned and the gap
reset once a season. Check engine manual for
correct plug type and gap specifications.

Lubrication

Control Lever: Lubricate the pivot points on the control
lever at least once a season with light oil.
See Figure 7.

Wheels: Lubricate the wheels at least once a season
with light oil. See Figure 7.

Engine: Follow the separate engine manual packed
with you unit for lubrication instructions.

Lubricate

ThreadingTrimmerLine

WARNING: Always stop engine, discon-

nect spark plug wire, and ground against

the engine before threading trimmer line
on your string trimmer mower. Wait for the
trimmer line to stop rotating.

When the trimmer line becomes too short or worn,
change to a new trimmer line as follows:

• Remove the worn trimmer line and replace with
new trimmer line packed with your string trimmer
mower. Always use OEM-743-0112 when
purchasing additional trimmer line.

• Fold new trimmer line in half and thread the ends of
line through the loop from the inside out without

going all the way through the loop. See Figure 8.

• Slide the loop end of the trimmer line under the
metal tab and secure in place by crossing and
pulling tight on the ends of the line. See Figure 8.

Figure 7

Maintenance

NOTE: When tipping the unit, empty the fuel tank and

keep the spark plug side of engine up. Never tip the
string trimmer mower more than 90 degrees and do not
leave the unit tipped for any length of time. Oil can drain
into the upper part of the engine causing a starting

problem.

Engine

Refer to the separate engine manual for all engine
maintenance instructions.

• Check engine oil level before each use as
instructed in the separate engine manual packed

with your unit. Read and follow instructions

carefully.

• Replace air cleaner every 25 hours under normal
conditions or once aseason. Clean every few hours
under extremely dusty conditions. To service the air

Trimmer
Line

Figure 8

11

DriveBeltRemovalAndReplacement

• Disconnect the spark plug wire and ground it

against the engine.

• Drain the fuel tank or place a piece of plastic
beneath the cap to prevent gasoline leakage.

• If unit is tipped for easier access to belt, tip the
string trimmer mower back on its side to keep
engine spark plug side up.

• Remove the trimmer line from both sides of the
spindle assembly.

• Remove carriage screws, washers, and hex nuts

that secure the trimmer deflector to the base.

See Figure 9.

• Slide trimmer deflector off so spindle assembly
goes through hole in deflector.

• Loosen the wing nuts and slide the spindle disc to

the highest position and tighten to secure in

position. Refer to Figure 6.

Carriage Screws

Trimmer Spindle
Deflector Assembly

Figure 9

• Remove lock nut that secures idler bracket keeper
and idler pulley to idler bracket assembly and
remove keeper. See Figure 10.

• Slip the belt around engine pulley first and then
spindle assembly pulley.

• Remove the belt from the unit by slipping it around

the spindle disc and then around the engine
flywheel.

• Reinstall new belt around the engine flywheel first
and then around the spindle and spindle pulley.

Carriage Screws

Idler Bracket __--===_------=--------_

Keeper Lock Nut

Figure 10

• Reconnect idler bracket keeper to the idler bracket
assembly.

• Reattach trimmer deflector to trimmer base.

• Adjust the spindle height to the desired position.

• Reattach spark plug wire to spark plug.

StoringYourStringTrimmerMower

• Clean the equipment thoroughly.

• Wipe equipment with a oiled rag to prevent rust.

• Refer to engine manual for correct engine storage
instructions.

• Store unit in a clean, dry area. Do not store next to
corrosive materials such as fertilizer.

• For more compact storage, store unit in the
shipping position with the upper handle folded
toward engine. See ASSEMBLY section for details.

12

SECTION8: TROUBLESHOOTING

Problem Cause Remedy

Engine fails to start

Engine runs erratic

Engine overheats

Occasional skip (hesitates)
at high speed

Idles poorly

Poor trimming
performance

NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer,

1. Spark plug wire disconnected.

2. Fuel tank empty or stale fuel.

3. Throttle control lever not incorrect
starting position. (If Equipped)

4. Blocked fuel line.

5. Faulty spark plug.

6. Engine flooded

1. Spark plug wire loose.

2. Blocked fuel line or stale fuel.

3. Vent in gas cap plugged.

4. Water or dirt in fuel system.

5. Dirty air cleaner.

6. Carburetor out of adjustment.

1. Engine oil level low.

2. Dirty air cleaner.

3. Air flow restricted.

4. Carburetor not adjusted properly.

1. Spark plug gap too close.

1. Spark plug fouled, faulty or gap too
wide.

2. Carburetor improperly adjusted.

3. Dirty air cleaner.

1. Trimmer string too short.

2. Trimmer string lengths are
substantially different.

3. Dirty air cleaner.

4. Engine not at FULL throttle.

5. Belt does not have enough tension.

1. Connect wire to spark plug.

2. Fill tank with clean, fresh gasoline.

3. Move throttle lever to FAST or START
position.

4. Clean fuel line.

5. Clean, adjust gap, or replace.

6. Wait a few minutes to restart, but do not
prime.

1. Connect and tighten spark plug wire.

2. Clean fuel line; fill tank with clean, fresh
gasoline

3. Clear vent.

4. Drain fuel tank. Refill with fresh fuel.

5. Replace air cleaner.

6. See authorized service dealer.

1. Fill crankcase with proper oil.

2. Replace air cleaner.

3. Remove blower housing and clean.

4. See authorized service dealer.

1. Adjust gap to.030".

1. Reset gap to.030" or replace spark
plug.

2. See authorized service dealer.

3. Replace air cleaner.

1. Replace trimmer string.

2. Adjust trimmer string to equal lengths.

3. Replace air cleaner.

4. Set engine to FULL throttle.
(If Equipped)

5. Check idler for proper belt tension.

13

SECTION9: PARTSLISTFORMODEL258

/

6

11

16.

17

18

26.

\

\ 24 34

10

12

13

20

27

\\\\

f.

23

21

30

33

51

/

2_

/

/

46

,/

/

51

14

5O

/

Model258

Ref.

No.

1,
2,

3,

4,

5,
6,
7,
8,

9,

10,
11,
12,
13,
14,

15,
16,

17,
18,

19.

20,
21,

22.
23,
24,

25.
26,

Part No.

747-0824
746-1116A

681-0166
710-0578

712-0324
710-1205
720-0279
726-0240

749-1255
749-1254

710-0450
720-0284
736-0451
731-1267

731-1268
710-1652

782-9065
731-2329
710-0216
710-0502A

681-0159
756-1223

750-1240
736-0182
734-2050
736-0270

Part Description

Control Lever
Engagement Cable

Control Lock Bracket
Machine Screw 1/4-20 x 1,50

Hex Lock Nut 1/4-20
Eye Bolt 1/4-20

Wing Nut
Cable Tie

Upper Handle
Lower Handle

Carriage Screw 5/16-18 x 3,0
Wing Nut

Shoulder Washer,320 ID x,93 OD
Lower Handle Connector

Upper Handle Connector
Hex Washer Screw 1/4-20 x,625

Trail Shield Clip
Trail Shield

Hex Cap Screw 3/8-16 x,750
Hex Washer Screw 3/8-16 x 1,25
Trimmer Axle

Flywheel / Pulley Combination
Spacer,51 ID x 1,00D
Spacer Washer.501 ID x 1,00D
Wheel Assembly

Bell Washer,265 ID x,75 OD

Ref.

No.

27, 710-3015
28, 712-3005

29. 710-04010
30, 710-1307
31, 710-0237

32. 736-0425
33, 781-1005A
34, 631-0096
35, 710-0703
36, 781-1007
37, 736-0452
38, 710-1044

39, 736-0173
40, 756-1198
41, 681-0181A
42, 750-1275
43, 732-1166
45, 736-0371
46, 712-3004A
47, 781-1028
48, 781-1020
49, 754-0625A

50, OEM-743-0112

51, 618-0558

52, 726-3055

53, 748-0278

Part No.

Part Description

Hex Cap Screw 1/4-20 x,75
Flange Lock Nut 3/8-16

Screw 5/16-18 x 2,25
Screw 5/16-18 x,75

Hex Cap Screw 5/16-24 x,625

Bell Washer,325 ID x,930 OD
Trimmer Base

Trimmer Deflector Assembly

Hex Carriage Screw 1/4-20 x,75

Belt Keeper Bracket Engine
Bell Washer,396 ID x 1,14 OD

Hex Cap Screw 3/8-24 x 1.50
Flat Washer,28 ID x,74 OD

Idler Pulley
Idler Bracket Assembly
Idler Spacer
Extension Spring,50 Dia x 1,88 Lg

Flat Washer
Flange Lock Nut 5/16-18

Idler Keeper Bracket

Belt Keeper Bracket Front
V-Belt

Trimmer Line,155 (incl, 10 pieces)
Spindle Assembly
Cable Retainer Clip
Spacer

15

MANUFACTURER'S LIMITED WARRANTY FOR:

The limited warranty set forth below isgiven by Troy-Bilt LLC
with respect to new merchandise purchased and used in the

United States, its possessions and territories,

"Troy-Bilt" warrants this product against defects in material
and workmanship for a period of two (2) years commencing
on the date of original purchase and will, at its option, repair or

replace, free of charge, any part found to be defective in

materials or workmanship. This limited warranty shall only
apply if this product has been operated and maintained in
accordance with the Operator's Manual furnished with the

product, and has not been subject to misuse, abuse,
commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage because of
other peril or natural disaster. Damage resulting from the

installation or use of any part, accessory or attachment not
approved by Troy-Bilt for use with the product(s) covered by
this manual will void your warranty as to any resulting
damage.

Normal wear parts are warranted to be free from defects in

material and workmanship for a period of thirty (30) days from
the date of purchase. Normal wear parts include, but not

limited to items such as: batteries, belts, blades, blade
adapters, grass bags, rider deck wheels, seats, snow thrower

skid shoes, shave plates, auger spiral rubber and tires.

HOW TO OBTAIN SERVICE: Warranty service is available,
WITH PROOF OF PURCHASE, through your local authorized
service dealer, To locate the dealer in your area, check your
Yellow Pages, or contact Troy-Bilt LLC at P,O, Box 361131,

Cleveland, Ohio 44136-0019, or call 1-866-840-6483 or 1-
330-558-7220, or log on to our Web site at www.troybilt.com.

This limited warranty does not provide coverage in the
following cases:

a,

The engine or component parts thereof. These items

may carry a separate manufacturer's warranty. Refer

to applicable manufacturer's warranty for terms and

conditions.

b,

Log splitter pumps, valves, and cylinders have a

separate one year warranty.

C,

Routine maintenance items such as lubricants, filters,

blade sharpening, tune-ups, brake adjustments, clutch
adjustments, deck adjustments, and normal

deterioration of the exterior finish due to use or
exposure.

d,

Service completed by someone other than an

authorized service dealer.

e,

Troy-Bilt does not extend any warranty for products

sold or exported outside of the United States, its

possessions and territories, except those sold through

Troy-Bilt's authorized channels of export distribution.

f,

Replacement parts that are not genuine Troy-Bilt parts.

g.

Transportation charges and service calls.

No implied warranty, including any implied warranty of
merchantability of fitness for a particular purpose,
applies after the applicable period of express written
warranty above as to the parts as identified. No other
express warranty, whether written or oral, except as
mentioned above, given by any person or entity,
including a dealer or retailer, with respect to any product,
shall bind Troy-Bilt. During the period of the warranty, the
exclusive remedy is repair or replacement of the product

as set forth above.
The provisions as set forth in this warranty provide the

sole and exclusive remedy arising from the sale. Troy-Bilt
shall not be liable for incidental or consequential loss or
damage including, without limitation, expenses incurred
for substitute or replacement lawn care services or for
rental expenses to temporarily replace a warranted
product.

Some states do not allow the exclusion or limitation of
incidental or consequential damages, or limitations on how

long an implied warranty lasts, so the above exclusions or
limitations may not apply to you.

In no event shall recovery of any kind be greater than the
amount of the purchase price of the product sold. Alteration

of safety features of the product shall void this warranty.

You assume the risk and liability for loss, damage, or injury to
you and your property andtor to others and their property
arising out of the misuse or inability to use the product.

This limited warranty shall not extend to anyone other than
the original purchaser or to the person for whom it was
purchased as a gift.

HOW STATE LAW RELATES TO THIS WARRANTY: This
limited warranty gives you specific legal rights, and you may

also have other rights which vary from state to state,

IMPORTANT: Owner must present Original Proof of

Purchase to obtain warranty coverage.

Troy-Bilt LLC,P.O.BOX361131CLEVELAND,OHIO44136-0019; Phone:[phone]