Craftsman 917773753 Owner’s Manual
Owner's Manual
CRRFTSMRN°
WHEELED WEEDTRIMMER
6.75 Horsepower
Inch Cut
Model Number
917,773753
Read and follow all
Safety Rules and Instructions
before operating this equipment.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website: www.sears.com/craftsman
U.S.A.
Warranty ................................................... 2
Safety Rules .......................................... 2-4
Assembly / Pre-Operation ........................ 5
Operation ............................................... 6-8
Maintenance Schedule ............................. 9
Maintenance ........................................ 9-12
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN WEEDTRIMMER
For two years from date of purchase, when this Craftsman VVeedtrimmer is maintained,
lubricated, and tuned up according to the operating and maintenance instructions in the
owner's manual, Sears will repair free of charge any defect in material or workmanship.
If this Craftsman Weedtrimmer is used for commercial or rental purposes, this warranty
applies for only 90 days from the date of purchase.
This Warranty does not cover:
Expendable items which become worn during normal use, such as rotating lines,
belts, air cleaners and spark plug.
Repairs necessary because of operator abuse or negligence, including bent crank-
shafts and the failure to maintain the equipment according to the instructions con-
tained in the owner's manual.
Product Specifications ............................ 9
Service and Adjustments ................... 13-14
Storage ................................................... 15
Troubleshooting ...................................... 16
Repair Parts ....................................... 34-41
Sears Service .......................... Back Cover
Warranty service is available by returning the Craftsman Weedtrimmer to the nearest
Sears Service Center in the United States. This warranty applies only while this product
is used in the United States.
This Warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
Sears, Roebuck and Co., Dept. 817 WA, Hoffman Estates, IL 60179
_I,WARNmNG: This trimmer 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 ap-
plicable local or state laws (if any). If a spark arrester is used, it should be maintained in
effective working order by the operator.
In the 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 Sears
service center (See the REPAIR PARTS section of this manual).
SAFETYGLASSES
The operation of any trimmer can result in foreign objects thrown into
the eyes, which can result in severe eye damage. Always wear safety
glasses or eye shields while operating your trimmer or performing any
adjustments or repairs. We recommend standard safety glasses or a
wide vision safety mask over spectacles.
_,Look for this symbol to point out
important safety precautions. It means
CAUTION!!! BECOME ALERT!!! YOUR
SAFETY IS INVOLVED.
_,WARNING: In order to prevent ac-
cidental starting when setting up, trans-
porting, adjusting or making repairs,
always disconnect spark plug wire and
place wire where it cannot contact spark
plug.
AWARNING: Engine exhaust, some
of its constituents, and certain vehicle
components contain or emit chemicals
known to the State of California to
cause cancer and birth defects or other
reproductive harm.
A CAUTION: Muffler and other engine
parts become extremely hot during
operation and remain hot after engine has
stopped. To avoid severe burns on contact,
stay away from these areas.
L GENERAL OPERATmON
* Read, understand, and follow all instruc-
tions on the machine and in the manual
before starting. Be thoroughly familiar
with the controls and the proper use of
the machine before starting.
Do not put hands or feet near or under
rotating parts.
Keep all parts of your body away from
muffler and spinning line. A hot muffler
can cause serious burns.
Only allow responsible individuals, who
are familiar with the instructions, to
operate the machine.
Stay away from breakable objects, such
as house windows, auto glass, green-
houses, etc.
Clear the area of objects such as rocks,
toys, wire, bones, sticks, etc., which
could be picked up and thrown by the
spinning lines.
Be sure the area is clear of other people
before trimming, particularly small chil-
dren and pets. Stop machine if anyone
enters the area.
Wear appropriate clothing such as a
long-sleeved shirt or jacket. Also wear
long trousers or slacks. Do not wear
shorts.
Do not wear loose clothing which could
get caught in this equipment.
Do not operate the machine when bare-
foot or wearing open sandals. Always
wear work gloves and sturdy footwear.
Leather work shoes or short boots work
well for most people. These will protect
the operator's ankles and shins from
small sticks, splinters, and other debris,
and improve traction.
Do not pull machine backwards un-
less absolutely necessary. Always look
down and behind before and while mov-
ing backwards.
Do not operate the machine without
proper guards, plates or other safety
protective devices in place.
See manufacturer's instructions for
proper operation and installation of
accessories. Only use accessories ap-
proved by the manufacturer.
Neveruse blades,wire,orflailingde-
vices.This unitis designedforlinetrim-
meruseonly.Useof otheraccessories
orattachmentswill increasethe risk of
injury.
Stopthe rotatingtrimmerheadwhen
crossinggraveldrives,walks,or roads.
Waitforthecutting linestostop rotating.
Stopthe engine (motor)wheneveryou
leavethe equipmentand allowitto cool,
beforecleaning,repairingor inspecting
theunit.Besurethetrimmerheadand
all movingpartshavestopped.
Operateonly in daylightor goodartificial
light.
Do notoperatethe machinewhile under
theinfluenceof alcoholor drugs.
Neveroperatemachinein wet grass. Al-
waysbesure ofyourfooting:keepafirm
holdonthe handleandwalk;neverrun.
Ifthe equipmentshouldstart to vibrate
abnormally,stopthe engine(motor)and
checkimmediatelyfor thecause. Vibra-
tion isgenerallya warningoftrouble.
Alwayswearsafetygogglesorsafety
glasseswith sideshieldswhenoper-
atingmachine.
II.SLOPE OPERATION
Slopes are a major factor related to slip
and fall accidents which can result in
severe injury. All slopes require extra cau-
tion. If you feel uneasy on a slope, do not
trim it.
DO:
Trim across the face of slopes: never up
and down. Exercise extreme caution
when changing direction on slopes.
Remove obstacles such as rocks, tree
limbs, etc.
Watch for holes, ruts, or bumps. Tall
grass can hide obstacles.
O0 NOT:
Do not trim near drop-offs, ditches or
embankments. The operator could lose
footing or balance.
Do not trim excessively steep slopes.
Do not trim on wet grass. Reduced foot-
ing could cause slipping.
HL CHILDREN
Tragic accidents can occur if the operator
is not alert to the presence of children.
Children are often attracted to the machine
and the trimming activity. Never assume
that children will remain where you last
saw them.
Keep children out of the trimming area
and under the watchful care of another
responsible adult.
Be alert and turn machine off if children
enter the area.
Before and while moving backwards,
look behind & down for small children.
Never allow children to operate the
machine.
Use extra care when approaching blind
corners, shrubs, trees, or other objects
that may obscure vision.
mV, SERVmCE
Use extra care in handling gasoline and
other fuels. They are flammable and
vapors are explosive.
Use only an approved container.
Never remove gas cap or add fuel
with the engine running. Allow
engine to cool before refueling.
Don't smoke.
Never refuel the machine indoors.
Never store the machine or fuel
container inside where there is an
open flame, such as a water heater.
Move away from fueling site before
starting engine.
Never run trimmer inside a closed area.
Never make adjustments or repairs with
the engine (motor) running. Disconnect
the spark plug wire, and keep the wire
away from the plug to prevent accidental
starting.
Keep nuts and bolts, especially trimmer
head and engine bolts, tight and keep
equipment in good condition.
Never tamper with safety devices.
Check their proper operation regularly.
Keep machine free of grass, leaves, or
other debris buildup. Clean oil or fuel
spillage. Allow machine to cool before
cleaning or storing.
Stop and inspect the equipment if you
strike an object. Repair, if necessary,
before restarting.
Do not change the engine governor set-
ting or overspeed the engine.
Clean and replace safety and instruction
decals as necessary.
Readthese instructionsandthis manualin
itsentiretybeforeyouattemptto assemble
oroperateyour newtrimmer.
iMPORTANT:Thistrimmeris shipped
WITHOUTOIL ORGASOLINEinthe
engine.
Yournew trimmerhas beenassembled
atthefactorywith the exceptionof those
partsleftunassembledforshipping
purposes.All partssuch as nuts,wash-
ers, bolts,etc., necessaryto completethe
assemblyhavebeen placedinthe parts
bag. Toensuresafeand properoperation
ofyourtrimmer,all partsandhardwareyou
assemblemustbe tightenedsecurely.Use
thecorrecttoolsas necessaryto ensure
propertightness.
When righthand (RH)orleft hand(LH) is
mentionedin this manual,it meanswhen
you are inthe operatingposition(standing
_@bJ_c_Cs_9::__;_.Separately
TO REMOVE TRIMMER FROM
CARTON
1. Removeloosepartsincludedwithtrim-
mer.
2. Cut downtwo endcornersofcarton
and layendpaneldownfiat.
3. Removeall packingmaterials.
4. Rolltrimmerout ofcarton andcheck
cartonthoroughlyfor additionalloose
parts.
HOW TO SET UPYOUR TRIMMER
TOUNFOLDHANDLE
iMPORTANT:Unfoldhandlecarefullyso
as notto pinchor damagecontrolcables.
1. Loosenhandleknobenoughto allow
upperhandleto be unfoldedfrom the
shippingposition.
2. Raiseupperhandlesectioninto place
on lowerhandleandtightenhandle
knob.
3. Removehandlepaddingholdingtrim-
merheadcontrol barto upperhandle.
Yourtrimmerhandlecan be adjustedfor
yourtrimmingcomfort. Referto "ADJUST
Bottle of oil
Trimmer Lines (2) Sets
(0.155 diameter
× 18.75 inches long)
Upper handb
UFT UP
Handb
knob
Lower
handle
KNOW YOUR TRmI_M ER
READ THIS OWNER'S MANUAL AND ALL SAFETY RULES BEFORE OPERATING
YOUR TRIMMER. Compare the illustrations with your trimmer to familiarize yourself with
the location of various controls and adjustments. Save this manual for future reference.
These symbomsmay appear on your trimmer or in literature supplied with the product. Learn and
understand their
,AWARNING
AVOIDSERIOUSINJURYORDEATH
CAUTION ENGINE OFF
FAST SLOW
FUEL OIL
ThrottUe controU
Starter handUe
HandUe knob
Engine oHcap w/dipstick
Trimmer head control bar
Gasoline cap
Engine cover
Air fluter
Primer
Muffler
cover
Trimmer head
mMPORTANT: This trimmer is shipped Primmer Hne
WITHOUT OIL OR GASOLINE in the
Trimmer head control bar - must be
held down to the handle to engage trimmer
head. Release to stop the trimmer head.
Primer - pumps additional fuel from the
carburetor to the cylinder for use when
starting a cold engine.
Throttle control - used for starting and
stopping the engine and allows you to
select either fast or slow engine speed.
Starter handle - used for starting the
SAFETYGLASSES
The operation of any trimmer can result in
foreign objects being thrown into the eyes,
which can result in severe eye damage.
Always wear safety glasses or eye shields
while operating your trimmer or performing
any adjustments or repairs. We recom-
mend standard safety glasses or a wide
vision safety mask worn over spectacles.
HOW TO USE YOUR TRmMMER
ENGmNE SPEED
The engine speed is controlled by a throt-
tle located on the side of the upper handle.
FAST position is for starting and normal
trimming. SLOW is for light trimming and
fuel economy. STOP is for stopping the
engine.
TO ADJUST TRIMMING HEIGHT
_CAUTION: Stop the engine and wait for
all moving parts to stop. Disconnect spark
plug wire from spark plug and place wire
where it cannot come in contact with plug.
The height of cut can be set to six (6) dif-
ferent positions ranging from 1-1/2 inches
to 3 inches. Recommended cutting height
for the average yard is 2 inches.
1. To adjust trimming height, push in the
locking plate tab and move trimmer
head up or down to desired position.
2. Release tab and be sure head is
locked into one of the six (6) height
positions.
Adj
Trimmer
Head
Locking
Plate Tab
TRIMMER HEAD DRIVE CONTROL
Your trimmer is equipped with a trimmer
head drive control bar which will require
the operator to be positioned behind the
trimmer handle to operate the trimmer.
,, Trimmer head rotation is controlled by
holding the trimmer head control bar
down to the handle.
,, Trimmer head rotation will stop when
the control bar is released.
BEFORE STARTING ENGmNE
ADD OIL
Your trimmer is shipped without oil in the
engine. For type and grade of oil to use,
see "ENGINE" in the Maintenance section
of this manual.
_1_CAUTION: DO NOT overfill engine with
oil, or it will smoke on startup.
1. Be sure trimmer is level and area
around oil fill is clean.
2. Remove oil dipstick from oil fill spout.
Make sure that rim of spout is clean.
3. Youreceivea containerofoil withthe
unit. Slowlypour3/4 (15 oz.)ofthe
oilfromthecontainerdownthe oilfill
spout intothe engine.
4. Waitone minuteto allowoil tosettle.
Insertandtightendipstick,then re-
moveitto checkoillevel.
5. Continueaddingsmallamountsof
oiland recheckingthe dipstickuntilit
readsfull. DONOToverfill,orengine
willsmokeon startup.
6. Alwaysbesureto retightenoil dipstick
beforestartingengine.
Checkoil levelbeforeeachuse. Addoil
if needed. Fillto full line on dipstick.
Changetheoil afterevery25 hoursof
operationoreachseason.Youmay
needto changethe oil moreoftenunder
dusty,dirtyconditions.
ADDGASOLINE
• Fill fueltankto bottomoftank fillerneck.
Do notoverfill. Usefresh, clean, regular
unleadedgasolinewitha minimumof
87 octane. Do not mixoil withgasoline.
Purchasefuel in quantitiesthat can be
usedwithin30 daysto assurefuelfresh-
hess.
A CAUTmON: Wipe off any spilled oil or
fuel. Do not store, spill or use gasoline
near an open flame.
CAUTION: Alcohol blended fuels
(called gasohol or using ethanol or
methanol) can attract moisture which
leads to separation and formation of acids
during storage. Acidic gas can damage
the fuel system of an engine while in
storage. To avoid engine problems, the
fuel system should be emptied before
storage of 30 days or longer. Drain
the gas tank, start the engine and let it
run until the fuel lines and carburetor
are empty. Use fresh fuel next season.
See Storage Instructions for additional
information. Never use engine or
carburetor cleaner products in the fuel
tank or permanent damage may occur.
Gasoline filler cap
Engine oil cap
TO START ENGINE
1. To start a cold engine, push primer
three (3) times before trying to start.
Use a firm push. This step is not
usually necessary when starting an
engine which has already run for a few
minutes.
2. Move throttle control lever to fast posi-
tion.
3. Hold upper handle firmly and pull
starter handle quickly. Do not allow
starter rope to snap back.
TO STOP ENG(NE
• To stop engine, move throttle control
lever to stop position.
NOTE: In cooler weather it may be
necessary to repeat priming steps. In
warmer weather overpriming may cause
flooding and engine will not start. If you
do flood engine, wait a few m_ before
controu
Throttle -'_\
Starter '_' "_!_!, //
handle _,.. /_L
Set the throttle control in the FAST posi-
tion. If the weeds or grass are tall and
thick, operate the trimmer at a slower
walking speed.
Frequently clean the underside of the
trimmer to remove any grass build up.
Keep top of engine around starter clear
and clean of grass clippings and chaff.
This will help engine air flow and extend
engine life. See "TO REMOVE ENGINE
COVER" in the Maintenance section of
this manual.
For best results and longer lasting
line, use the ends of the line to do the
cutting. This is easily done by moving
slowly through very thick and heavy
weeds.
Use the left side of trimmer when trim-
ming along fences, walls, fiowerbeds
and other such objects.
If trimmer lines become too short, it will
take longer to complete the job. If trim-
mer lines are worn to less than half their
original length, they should be replaced.
See "TO REPLACE TRIMMER LINE" in
the Maintenance section of this manual.
Trimmer head contact with concrete, as-
phalt or other hard surfaces may cause
premature wear of the ball on bottom of
trimmer head.
MAINTENANCE SCHEDULE
,LL, O ES
REGULAR SERVICE
T Check for Loose Fasteners I/ I_
R Clean Trimmer I_ I/
I
M Clean Under Engine Cover I/2
Check Drive Belt / Pulleys
R Check / Replace Trimmer Lines 1_3
Check Engine Oil Level I/
E Change Engine Oil I/1,2
Clean Air Filter I_ 2
I Inspect Muffler
Clean or Replace Spark Plug I_
Replace Air Filter Paper Cartridge 1_2
1 - Change more often when operating under a heavy load or in high ambient temperatures,
2 - Service more often when operating in dirty or dusty conditions.
3 - Replace trimmer lines when they have worn to half their original length.
GENERAL RECOMMENDATmONS
The warranty on this trimmer does not
cover items that have been subjected to
operator abuse or negligence. To receive
full value from the warranty, operator must
maintain trimmer as instructed in this
manual.
Some adjustments will need to be made
periodically to properly maintain your unit.
All adjustments in the Service and Adjust-
ments section of this manual should be
checked at least once each season.
Once a year, replace the spark plug and
replace air filter element. A new spark
plug and clean/new air filter element
assure proper air-fuel mixture and help
your engine run better and last longer.
Follow the maintenance schedule in this
manual.
BEFORE EACH USE
1. Check engine oil level.
2. Check for loose fasteners.
3. Clean under engine cover.
LUBRmCATmON
To pro{ong the useful life of your trimmer,
change engine oil as recommended in this
section of Owner's Manual.
mMPORTANT: Do not oil or grease plastic
wheel bearings. Viscous lubricants will
attract dust and dirt that will shorten the
life of the self- lubricating bearings. If you
feel they must be lubricated, use only
a dry, powdered graphite type lubricant
sparingly.
PRODUCT SPECmFmCATmONS
Serial No.
Date of Purchase:
Gasoline Type: Unleaded Regular
Gasoline Capacity: 1.25 Quarts
Oil Type:
(APFSF-SJ)
Oil Capacity:
Spark Plug: Champion RJ19LM or
Trimmer Line Diameter:.155 inch
Trimmer Line Length: 18.75 inches
The model and serial numbers will be
found on a decal attached to the rear of
the trimmer. Record both serial number
and date of purchase in the space pro-
vided above.
v'
SAE 30 (Above 32 -°F)
SAE 5W-30 (Below 32-°F)
20 ounces
J19LM (Gap: .030")
Alwaysobservesafetyruleswhen per-
formingany maintenance.
TmRES
Keeptiresfree of gasoline,oil, or insect
controlchemicalswhichcan harm rub-
ber.
Avoidstumps,stones,deep ruts,sharp
objectsand otherhazardsthat may
causetire damage.
TR(MMERL(NE
For best results, replace trimmer lines
when they have worn to half their original
length. Use .155 inch diameter trimmer
line. Cut new trimmer line length to 18-3/4
inches. After new line is installed on
trimmer head, check all lines so they do
not vary more then one (1) inch in length.
This is important to make sure the trim-
mer head is balanced and will not vibrate
abnormally.
AWARNmNG: Use only the specified
trimmer line. Do not use other materials
such as wire, string, rope, etc. Wire can
break off during trimming and become a
dangerous missile that can cause serious
injury.
TO CUT LINE TO PROPER LENGTH
NOTE: Trimmer line pre-cut to proper
length is available for this unit; see the
Repair Parts section of this manual.
If trimmer line is purchased in bulk, it must
be cut to 18-3/4 inches before using. Use
the built-in length guage as follows:
1. From front of trimmer, place the end of
spooled trimmer line at the mark on the
side of the debris shield as shown.
2. Wrap trimmer line around front of chas-
sis cover to other side and cut at the
"22" mark (your unit's width of cut).
Chassis cover
TO REPLACE TRIMMER LINE
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove worn trimmer line from line
carrier plate.
3. Fold new, cut to length, trimmer line
in half and insert folded end through
carrier plate opening to back side of
retainer clip.
4. With folded end of line at back side of
retainer clip, pull line outward until line
is fully seated under the retainer clip.
5. Repeat on other side of carrier plate.
6. Check all lines to be sure they are the
same length.
7. Reconnect spark plug wire to spark
plug.
Trimmer
line
\\
\
Carrier plate
opening
WRAP
LiNE
\ROUND
Debris New
shield End of trimmer
mark spooled line line
clip
10
LUBRICATION
Useonlyhighqualitydetergentoil rated
with APIserviceclassificationSF-SJ. Se-
lectthe oil"sSAEviscositygradeaccord-
ingtoyourexpected operating tempera-
ture.
] I I i
I'T"I 4oIoo Ioo r,oo
SAE VISCOSITY GRADES
; T MOE AT EANT,O,;ATEOO;OREN XTO,LO E
oilvisc chaltle
NOTE: Although multi-viscosity oils
(5W30, 10W30 etc.)improve starting in
cold weather, these multi-viscosity oils will
result in increased oil consumption when
used above 32°R Check your engine oil
level more frequently to avoid possible
engine damage from running low on oil.
Change the oil after every 25 hours of
operation or at least once a year if the unit
is not used for 25 hours in one year.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil level.
TO CHANGE ENGINE OIL
NOTE: Before tipping trimmer to drain oil,
drain fuel tank by running engine until fuel
tank is empty.
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. Tip trimmer on its side as shown and
drain oil into a suitable container. Rock
trimmer back and forth to remove any
oil trapped inside of engine.
4. Wipe off any spilled oil from trimmer or
side of engine.
5. Fill engine with oil (See "ADD OIL:' in
the Operation section of this manual).
6. Replace engine oil cap.
7. Reconnect spark plug wire to spark
plug.
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter. Re-
place the air filter every 100 hours of op-
eration or every season, whichever occurs
first. Service air cleaner more often under
dusty conditions. Do not wash air filter.
TO CHANGE AIR FILTER
1. Remove the air filter by turning clock-
2. Remove filter from inside of cover.
3. Clean the inside of the cover and the
4. Insert new filter into cover.
5. Put air filter cover and filter into collar
6. Push in on cover and turn counter-
C°lar
Slot j
Air filter cover
Container
wise to the stop and pull away from
collar.
collar to remove any dirt accumulation.
aligning the tab with the slot.
clockwise to tighten.
TURN CLOCKWISE
Clip
REMOVE
\
Air filter
Tab
CLOCKWISE TO TIGHTEN
TURN
COUNTER-
TO
11
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or damage.
SPARK PLUG
Replace spark plugs at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs
first. Spark plug type and gap setting are
shown in "PRODUCT SPECIFICATIONS"
in the Maintenance section of this manual.
HV1PORTANT: For best performance, keep
trimmer free of built-up grass and trash.
Clean the underside of your trimmer after
each use.
ACAUTmON: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with the spark
plug.
• Turn trimmer on its side. Make sure air
filter and carburetor are up. Clean the
underside of your trimmer by scraping to
remove build-up of grass and trash.
• Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
• Keep finished surfaces and wheels free
of all gasoline, oil, etc.
• We do not recommend using a gar-
den hose to clean trimmer unless the
electrical system, muffler, air filter and
carburetor are covered to keep water
out. Water in engine can result in short-
ened engine life.
use, or more frequently in heaw cutting or
dirty conditions. Engine cover screen and
engine air intake screen must be kept free
of dirt and chaff to prevent engine damage
from overheating.
Be sure engine is cool before cleaning.
1. Unscrew knob on top of cover.
2. Lift cover up and away from engine.
3. Clean cover and cover screen thor-
oughly.
4. Clean top of engine and air intake
screen.
5. Replace engine cover and tighten
knob securely. Be sure the front tabs of
engine cover are located in the slots in
engine housing.
Knob
Engine cover
/
Starter
rope
Threaded
stud
Engine
cove r
screen
CLEAN UNDER ENGmNE COVER
Clean under engine cover before each
Air intake screen
Housing slots
12
_,WARNmNG: To avoid serious injury,
before performing any service and
adjustments:
1. Stop engine.
2. Make sure the rotating lines and all
moving parts have completely stopped.
3. Disconnect spark plug wire from spark
plug and place where it cannot come in
contact with plug.
TO REI\,_OVE/BEPLACE TBmI\,_MEB HEAD
DBmVE BELT
1. Remove screw at front of chassis cover.
2. Lift cover up and away from trimmer.
3. Remove the two (2) screws on sides of
TO ADJUST TRI_MmNG HEmGHT
See "TO ADJUST TRIMMING HEIGHT" in
the Operation section of this manual.
TO ADJUST HANDLE
The upper handle may be adjusted to dif-
ferent height positions.
* Loosen handle knob only enough to
allow the upper handle to pivot to the
desired position.
* Tighten handle knob securely.
NOTE: The handle knob and bolt may be
reversed for left handed operation.
Chassis
COVe[
trimmer securing the debris shield.
4. Turn trimmer on its side with carburetor
and fuel cap up.
5. Remove the two (2) screws on under-
side of trimmer securing the debris
shield.
6. Slide the debris shield rearward and
remove.
7. Remove belt from engine pulley on
crankshaft.
Handle knob
II
,/
gine
pulley
13
8. Remove belt from trimmer head pulley.
9. Note the position of the control cable
and idler return spring, then remove
idler assembly from chassis and re-
move belt and idler from trimmer.
10. Remove belt from idler assembly by
removing bottom belt keeper and idler
pulleys.
11 .Assemble new belt, idler pulleys and
bottom belt keeper to idler bracket.
Tighten pulley bolts securely.
NOTE: Be sure belt is inside top belt
keeper on idler assembly.
Engine pulley
Chassis //-...
/ I /_
/
\
12. Position belt and idler assembly in
trimmer, reconnect idler spring and as-
semble idler to chassis.
13. Install belt around trimmer head pulley
and engine pulley.
14. Replace debris shield and tighten the
four (4) screws securely.
15. Replace chassis cover and tighten
screw securely.
Always use Craftsman replacement parts
to assure proper fit and long life.
Nut
Idler bracket
Spacer
Flatidler
ENGINE SPEED
Your engine speed has been factory set.
Do not attempt to increase engine speed
or it may result in personal injury. If you
believe that the engine is running too fast
or too slow, take your unit to a Sears or
other qualified service center for repair
and/or adjustment.
Your carburetor has a nonadjustable fixed
main jet for mixture control. If your engine
does not operate properly due to sus-
pected carburetor problems, take your unit
to a Sears or other qualified service center
for repair and/or adjustment.
Bottom
., belt
keeper
Fiat idler
Trimmer head pulley
mlVIPORTANT: Never tamper with the
engine governor, which is factory set
for proper engine speed. Overspeeding
the engine above the factory high speed
setting can be dangerous. If you think
the engine-governed high speed needs
adjusting, take your unit to a Sears or
other qualified service center, which has
proper equipment and experience to make
any necessary adjustments.
14
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