Craftsman 316792020 Owner’s Manual
INCREDI.PULL TM
UNBELIEVABLE STARTING E A S E
with MA× FIREx4clBNITImN TM
* SAFETY
// * ASSEMBLY
// . OPERATION
## * MAINTENANCE
// * PARTS LIST
* ESPANOL, R 15
..4___ CAUTION: Before using this
% product, read this manual and
-_ follow all safety rules and
operating instructions.
FOR ANSWERS TO QUESTIONS ABOUT THIS PRODUCT, CALL 1=800=235=5878
Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.
Visit our website: www.sears.com/craftsman
P/N 769-04484A P00 2/09
CALiFORNiA PROPOSiTiON 65 WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS
CHEMICALS KNOWN TO THE STATE OF CALiFORNiA TO CAUSE
CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
The purpose of safety symbols is to attract your attention to possible I
dangers. The safety symbols, and their explanations, deserve your I
careful attention and understanding. The safety warnings do not by I
themselves eliminate any danger. The instructions or warnings they I
give are not substitutes for proper accident prevention measures.
SYMBOL MEANING
TABLE OF CONTENTS
Safety Rules .......................................... 2
Warranty ............................................. 4
Know Your Unit ........................................ 4
Assembly instructions ................................... 4
Oil and Fuel information ................................. 5
Starting/Stopping instructions ............................ 6
Operating instructions ................................... 7
Maintenance and Repair instructions ....................... 7
Cleaning and Storage .................................. 11
Optional Equipment .................................... 11
Troubleshooting Chart .................................. 12
Specifications ........................................ 13
Parts List ............................................ 30
Service Numbers .............................. Back Cover
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=06080 Muffler Assembly.
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.
,, IMPORTANT SAFETY INSTRUCTIONS ,,
READ ALL INSTRUCTIONS BEFORE OPERATING
= Read the instructions carefully. Be familiar with the controls and
proper use of the unit.
• Do not operate this unit when tired, ill, or under the influence of
alcohol, drugs, or medication.
Children 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.
Clear thearea 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 you are approached,
stop the unit immediately.
Use only Craftsman Hassle-Free TM XTRA QUIET Spiral
Lineoriginal 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 ALERT: indicates danger, warning or caution.
Attention is required in order to avoid serious personal
injury. May be used in conjunction with other symbols or
pictographs.
NOTE: Advises you of information or instructions vital to the
operation or maintenance of the equipment.
serious injury to yourself or to others. Always follow the
_ ANGER: Failure to obey a safety warning will result in
safety precautions to reduce the risk of fire, electric shock
and personal injury.
_iL WARNING: Failureto obey asafety warning can result ininjury to yourself and others. Always follow the safety precautions
to reduce the risk of fire, electric shock and personal injury.
CAUTION: Failure to obey a safety warning may result in
property damage or personal injury to yourself or to others.
Always follow the safety precautions to reduce the risk of fire
electric shock and personal injury.
NOTE- THIS UNIT iS ELECTRIC START CAPABLE. As an
alternate starting method. To utilize this option, an
electric starter can be purchased online only at
www.sears.com/craftsman (www.sears.ca/craftsman
for Canada).
Read the Operator's Manual and follow all warnings and safety
instructions. Failure to do so can result in serious injuryto the operator
and/or bystanders. FOR QUESTIONS, CALL 1-800-235-5878
SAFETY WARNINGS FOR GAS UNITS
I A I WARNING: Gasoline is highly flammable and its vapors i
I _ I can explode ifignited. Take the following precautions:
Store fuel only in containers specifically designed and approved
for the storage of such materials.
Avoid creating a source of ignition for spilled fuel. Do not start the
engine until fuel vapors dissipate.
Always stop the engine and allow it to cool before filling the fuel tank.
Never remove the cap of the fuel tank, or add fuel, when the engine
is hot. Never operate the unit without the fuel cap securely in place.
Loosen the fuel tank cap slowly to relieve any pressure in the tank.
Add fuel in a clean, well-ventilated outdoor area where thereare no
sparks or flames. Slowly remove the fuel cap only after stopping engine.
Do not smoke while fueling. Wipe up any spilled fuel from the unit
immediately.Always wipe unit dry before using.
Move the unit at least 30 feet (9.1m)from the fueling source and site
beforestarting the engine. Do not smoke or allow sparks and open
flames near the area while adding fuel or operating the unit.
WHILE OPERATING
= Never start or run the unit inside a closed room or building. Breathing
exhaust fumes can kill. Operate this unit only in a well ventilated
outdoor area.
Be aware of the risk of injury to the head, hands and feet.
Wear safety glasses orgoggles that are marked as meeting ANSI
Z87.1-1989 standards. Also wear ear/hearing protection when
operating this unit. Wear a face or dust mask if the operation isdusty.
Long sleeve shirts are recommended.
i
• Wearheavy,longpants,bootsandgloves.Donotwearloose • Ifyoustrikeorbecomeentangledwithaforeignobject,stoptheengine
clothing,jewelry,shortpants,sandalsorgobarefoot.Securehair
aboveshoulderlevel.
Thecuttingattachmentshieldmustalwaysbeinplacewhile
operatingtheunit.Donotoperateunitwithoutbothtrimminglines
extended,andtheproperlineinstalled.Donotextendthe
trimminglinebeyondthelengthoftheshield.
Thisunithasaclutch.Thecuttingattachmentremainsstationary
whentheengineisidling.Ifitdoesnot,havetheunitadjustedby
anauthorizedservicetechnician.
AdjusttheD-handletoyoursizetoprovidethebestgrip.
Besurethecuttingattachmentisnotincontactwithanything
beforestartingtheunit.
Usetheunitonlyindaylightorgoodartificiallight.
Avoidaccidentalstarting.Beinthestartingpositionwhenever
pullingthestarterrope.Theoperatorandunitmustbeinastable
positionwhilestarting.SeeStarting/StoppingInstructions.
Usetherighttool.Onlyusethistoolforthepurposeintended.
Donotoverreach.Alwayskeepproperfootingandbalance.
Alwaysholdtheunitwithbothhandswhenoperating.Keepafirm
griponboththefrontandrearhandleorgrips.
Keephands,face,andfeetatadistancefromallmovingparts.Do
nottouchortrytostopthecuttingattachmentwhenitisrotating.
Donottouchtheengineormuffler.Thesepartsgetextremelyhotfrom
operation.Theyremainhotforashorttimeafteryouturnofftheunit.
Donotoperatetheenginefasterthanthespeedneededtocut,trimor
edge.Donotruntheengineathighspeedwhenyouarenotcutting.
Alwaysstoptheenginewhencuttingisdelayedorwhenwalking
immediatelyandcheckfordamage.Donotoperatebeforerepairing
damage.Donotoperatetheunitwithlooseordamagedparts.
Stopandswitchtheenginetooffformaintenance,repair,orfor
changingthecuttingattachmentorotherattachments.
Useonlyoriginalequipmentmanufacturerreplacementpartsand
accessoriesforthisunit.Theseareavailablefromyourauthorized
servicedealer.Useofanyunauthorizedpartsoraccessories
couldleadtoseriousinjurytotheuser,ordamagetotheunit,and
voidyourwarranty.
Keepunitcleanofvegetationandothermaterials.Theymay
becomelodgedbetweenthecuttingattachmentandshield.
Toreducefirehazard,replacefaultymufflerandsparkarrestor.
Keeptheengineandmufflerfreefromgrass,leavesorother
debris.
OTHERSAFETYWARNINGS
Neverstoretheunit,withfuelinthetank,insideabuildingwhere
fumesmayreachanopenflameorspark.
Allowtheenginetocoolbeforestoringortransporting.Besureto
securetheunitwhiletransporting.
Storetheunitinadryarea,lockeduporuphightoprevent
unauthorizeduseordamage.Keepoutofthereachofchildren.
Neverdouseorsquirttheunitwithwateroranyotherliquid.Keep
handlesdry,cleanandfreefromdebris.Cleanaftereachuse.See
theCleaningandStorageinstructions.
Keeptheseinstructions.Referto them often and usethem to instruct other
users. Ifyou loan someone this unit, also loanthem theseinstructions.
SAVE THESE INSTRUCTIONS
fromonecuttinglocationtoanother.
" SAFETY & INTERNATIONAL SYMBOLS "
This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's
manual for complete safety, assembly, operating and maintenance and repair information.
SYMBOL MEANING SYMBOL MEANING
bSAFETY ALERT SYMBOL
,d L
Q
|
O bON/OFF STOP CONTROL
Indicates danger, warning or caution. May be used in
conjunction with other symbols or pictographs.
, WARNING - READ OPERATOR'S MANUAL
Read the operator's manual(s) and follow all warnings
and safety instructions. Failure to do so can result in
serious injury to the operator and/or bystanders.
" WEAR EYE AND HEARING PROTECTION
WARNING: Thrownobjects andloud noisecan cause
severeeyeinjuryand hearingloss. Weareye protection
meetingANSIZ87.1-1989standards and earprotection when
operatingthis unit. Use afullfaceshieldwhen needed.
UNLEADED FUEL
Always use clean, fresh unleaded fuel
mON/OFF STOP CONTROL
ON / START / RUN
OFF or STOP
_lT,_L •THROWN OBJECTS AND ROTATING CUTTER CAN
>/_-"_b _ CAUSE SEVERE INJURY
//_Y WARNING: Small 0bjectS Canbe ProPelled at high
-_f "_ speed, causing injury. Keep away from the rotating rotor.
_,,_ • KEEP BYSTANDERS AWAY
_r_5_ WARNING: Keep a!l bystanders, especially children
t,,,,,,! , Refer to operator s manual for the proper type of 0il.
_ ,,SHARP BLADE
-._ WARNING:sharp blade Ontrimmer attachment Shield.
_. To prevent serious injury, do n°t touc h the !inecutting blade:
and pets, at least 50 feet (!5 m.)from the operating area,
WARNING _HOT SURFACE
Bonot toUCh ahot muffler or CYl!nder. You may get
burned. These parts get extremely hot from operationl
When turned off they remain hot for a short time:
,,OIL
Push primer- bUlb, fu!!y and Slowly, 1o times:
,_PRIMER BULB
'%_ 'b DO NOT USE E85 FUEL iN THiS UNiT
WARNING: It has been proven that fuel containing
_,_m!!_._j greater than 15% ethanol will likely damage this
engine and void the warranty.
3
CRAFTSMAN PROFESSIONAL FULL WARRANTY
If this Craftsman Professional product fails due to a defect in material or workmanship within three years from the date of purchase, return it
to any Sears store, Parts & Repair Service Center, or other Craftsman outlet in the United States for free repair (or replacement if repair
proves impossible).
This warranty applies for only one year if this product is ever used for commercial or rental purposes.
This warranty covers ONLY defects in material and workmanship. Sears will NOT pay for:
• Expendable items that can wear out from normal use within the warranty period, such as cutting line, filters or spark plugs.
Repairs necessary because of accident or failure to operate or maintain the product according to all supplied instructions.
Preventive maintenance, or repairs necessary due to improper fuel mixture, contaminated or stale fuel.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
APPLICATIONS On/Off Stop Control
As a trimmer:
Cutting grass and light weeds.
Edging
Decorative trimming around trees, fences, etc.
Shaft Grip
Throttle
Lockout
Fuel Cap
Shaft Housing
Rapid Rewind ®
Cutting Head
Cutting Head PLUS Cutting Head Starter
iNSTALL AND ADJUST THE D-HANDLE
1. Place D-handle over the
shaft housing and onto
Shaft Grip
the bottom clamp (Fig. 1).
Place it a minimum of 6
inches (15.24 cm) from
the end of the shaft grip.
2. Start screws with a large
Flat-head or T-25 Torx Minimum
screwdriver. Do not 6 in.
tighten until you make the (15.24 cm)
handle adjustment.
D-Handle _, Throttle Primer Bulb
Shoulder
Strap
Loop
Choke Lever
Air Filter
Cover
Control
Optional Hassle Free®
Shield _ Rope Grip
LineCutting
Blade
3. While holding the unit in the operating position (Fig. 13), move
the D-handle to the location that provides you the best grip.
Screws (4)
4. Tighten the clamp screws
evenly, until the D-handle
is secure.
INSTALL THE SHOULDER
SUPPORT
D-Handle
1. Put the shoulder support
on using the clip. (Fig. 2).
Fig. 1
Clamp
Electric Start
Adapter
Fig. 2
2. Adjust by lifting slightly on
the rear of the lower clip
then push or pull the Support
loose end of the strap Clip
length to fit the operator's
size and comfort. (Fig. 3).
A
3. Attach the shoulder clip ,_ Adjustment
to the unit. (Fig. 4) ,_ Tab
INSTALL THE CUTTING
HEAD SHIELD
1. Place the cutting head Fig. 3
shield onto the guard
mount bracket, making
sure to align the holes on
the shield with the ones in
the guard mount bracket. Support
(Fig. 5) Fitting
2.
Take the 4 shield screws
and screw each one into
the shield until finger
tight.
3.
Using a Flat Head or T-20
screw driver, tighten the
screws until the shield is
firmly in place. (Fig. 5)
Cutting
Head _ _
Fig. 4
Screws (4)
Shield Guard Mount
_, Bracket
Fig. 5
CAUSE SERIOUS PERSONAL iNJURY. Check and maintain
the proper oil level inthe crankcase; it is important and
cannot be overemphasized. Check the oil before each use
WARNING: OVERFILLING OiL CRANKCASE MAY
and change it as needed. See Changing the Oil.
RECOMMENDED OIL TYPE
Using the proper type and weight of oil in the crankcase is extremely
important. Check the oil before each use and change the oil regularly.
Failure to use the correct oil, or using dirty oil, can cause premature
engine wear and failure.
Use a high-quality SAE 30 weight oil of API (American Petroleum Institute)
service class SF, SG, SH.
ADDING OIL TO CRANKCASE: INITIAL USE
NOTE: This unit is shipped without oil. in order to avoid damage to
the unit, put oil in the crankcase before you attempt to start
the unit.
Your unit is supplied with one 2.2 fl.oz. (60 ml.) bottle of SAE 30 SF,
SG, SH oil (Fig. 6).
NOTE: Save the bottle of oil.
It can be used to
measure the correct
amount during future
oil changes. See
Changing the Oil.
1. Unscrew the top of the
bottle of oil and remove
the paper seal covering
the opening. Replace the
top. Next, cut the tip off
Fig. 6
the funnel spout (Fig. 6).
2. Place unit on a flat, level
surface.
3. Remove the oil fill plug from
the crankcase (Fig. 8).
4. Pour the entire bottle of oil
into the oilfill hole (Fig. 7).
NOTE: Never add oil to the
fuel or fuel tank.
5. Wipe up any oil that may
have spilled and reinstall
Oil Fill Hole
Fig. 7
the oil fill plug.
Check oil before each use and
change as needed. Refer to
Checking the Oil Level.
RECOMMENDED FUEL
TYPE
Old fuel is the primary reason
O=Ring
Oil Fill __
for improper unit performance.
Be sure to use fresh, clean,
unleaded gasoline.
NOTE: Dispose of the old
Fig. 8
gasoline in accordance to Federal, State and Local
regulations.
NOTE: This is a four cycle engine. In order to avoid damage to the
unit, do not mix oil with gasoline.
Definition of Blended Fuels
Today's fuels are often a blend of gasoline and oxygenates such as
ethanol, methanol or MTBE (ether). Alcohol-blended fuel absorbs
water. As little as 1% water in the fuel can make fuel and oil separate
or form acids when stored. Use fresh fuel (less than 60 days old),
when using alcohol-blended fuel.
Using Blended Fuels
If you choose to use a blended fuel, or its use is unavoidable, follow
recommended precautions:
• Always use fresh unleaded gasoline
Use the fuel additive STA-BIL® or an equivalent
Drain tank and run the engine dry before storing unit
5
Using Fuel Additives
WARNING: Gasoline is extremely flammable, ignited
vapors may explode. Always stop the engine and allow it
to cool before filling the fuel tank. Do not smoke while
filling the tank. Keep sparks and open flames at a distance
from the area.
WARNING: Add fuel in a clean, well ventilated outdoor
area. Wipe up any spilled fuel immediately. Avoid creating
a source of ignition for spilt fuel. Do not start the engine
until fuel vapors dissipate.
The use of fuel additives, such as STA-BIL® Gas Stabilizer or an
equivalent, will inhibitcorrosion and minimize the formation of gum
deposits. Using a fuel additive can keep fuel from forming harmful
deposits in the carburetor for up to six (6)months. Add 0.8 oz. (23 ml.) of
fuel additive per gallon of fuel according to the instructions on the fuel
additive container. NEVERadd fuel additives directly to the unit's gas tank.
FUELING THE UNIT
WARNING: Remove fuel cap slowly to avoid injury from I
fuel spray. Never operate the unit without the fuel cap
securely in place.
WARNING: Do NOT USE E85 FUEL IN THiS UNIT. it I
has been proven that fuel containing greater than 15%
1. Remove the fuel cap (Fig. 9).
2. Place the gas container's
spout into the fill hole on Gas Can Spout
the fuel tank (Fig. 9) and \
fill the tank. _\ _'-.._b
NOTE: Do not overfill the ///////// _
tank.
3. Wipe up any gasoline that _j_
may have spilled. __/ _[_
4. Reinstall the fuel cap. _/_'_
5. Move the unit at least 30 FuelTank/ tic" _"-- Cap
ft. (9.1 m) from the fueling
source and site before Fig. 9
starting the engine.
WARNING: Operate this unit only in a well-ventilatedoutdoor area. Carbon monoxide exhaust fumes can be
lethal in a confined area.
WARNING: Avoid accidental starting. Make sure you are
in the starting position when pulling the starter rope (Fig. 12).
To avoid serious injury, the operator and unit must be
in a stable position while starting.
NOTE- THIS UNIT IS ELECTRIC START CAPABLE as an alternate
starting method. To utilize this option, an electric starter can
be purchased online only at www.sears.com/craftsman
Please refer to the Electric Starter instructions when using
this feature.
NOTE:
This unit uses the Incredi-PuIF Mstarting system, which
significantly reduces the effort required to start the engine.
There is no harsh resistance when pulling the starter rope. Be
aware that this starting method is vastly different from (and
much easier than) previous starting techniques.
Fuel
STARTING INSTRUCTIONS Stop/Off
1. Check the oil level in
the crankcase. Refer Start/On
to Checking the Oil
Level.
2. Fill the fuel tank with
fresh, clean unleaded
gasoline. Refer to
Fueling the Unit. ,Throttle Control
NOTE: There is no need
to turn the unit Fig. 10
on. The On/Off Primer Bulb
Stop Control is in Choke Lever
the ON (I)
position at all
times (Fig. 10).
_-3. Fully press and
J
nethanol will likely damage this engine and void the warranty.
release the primer
bulb 10 times, slowly.
Some amount of fuel
should be visible in
the primer bulb and
fuel lines (Fig. 11). if Fig. 11
you can't see fuel in Starting
the bulb, press and Position
release the bulb as
many times as it
takes until you can
see fuel in it.
4.
Place the choke lever
in Position 1 (Fig. 11).
5.
Crouch in the starting
position (Fig. 12). Throttle Control
Press the throttle
lockout in and fully Fig. 12
squeeze the throttle control lever. Pull the starter rope 5
times.
6. Place the choke lever in Position 2 (Fig. 11).
7. While pressing the throttle lockout in and squeezing the
throttle control, steadily pull the starter rope 1 to 4 times to
start the engine.
8. Keep the throttle squeezed and allow the engine to warm
up for 30 to 60 seconds.
9. Place the choke lever in Position 3 (Fig. 11). The unit is
ready for use.
HOT STARTING... Place the choke lever in Position 2. Pull the
starter rope untill unit starts and run the unit for 2 to 3
minutes. Then move the choke lever to Position 3. The
unit may be used during this "warm up" period.
The engine does not start, go back to step 3.
The engine fails to start after a few attempts, place the
choke lever in Position 3, press the throttle lockout in
and squeeze the throttle control. Pull the starter rope 3 to
8 times. The engine should start, if not, repeat.
STOPPING iNSTRUCTIONS
1. Release your hand from the throttle control. Allow the
engine to cool down by idling.
2. Press and hold On/Off Stop Control in the OFF (O) position
until engine comes to a complete stop (Fig. 10).
HOLDING THE TRIMMER
MAINTENANCE SCHEDULE
-- iWARNING: Always wear eye, hearing, foot and bodyprotection to reduce the risk of injury when operating this unit.
Before operating the unit, stand in the
operating position (Fig. 13). Check for
the following:
• The operator is wearing eye
protection and proper clothing
• With a slightly-bent right arm, the
operator's right hand is holding the
shaft grip
The operator's left arm is straight, the
left hand holding the handle
The unit is at waist level
The cutting attachment is parallel to
the ground and easily contacts the
grass without the need to bend over
ADJUSTING TRIMMING LINE
LENGTH Fig. 13
The cutting head allows you to release trimming line without stopping
the engine. To release more line, lightly tap the cutting attachment on
the ground (Fig. 14) while operating the trimmer at high speed.
NOTE: Always keep the trimming line fully extended. Line release
becomes more difficult as the cutting line becomes shorter.
Each time the head is bumped, about 1 inch (25.4 mm) of trimming
line is released. A blade in the cutting attachment shield will cut the
line to the proper length if excess line is released.
For best results, tap the cutting head on bare ground or hard soil. If
line release is attempted in tall grass, the engine may stall. Always
keep the trimming line fully extended. Line release becomes more
difficult as the cutting line becomes
shorter.
NOTE: Do not rest the cutting head on
Some line breakage will occur from:
TiPS FOR BEST TRIMMING RESULTS
= Keep the cutting attachment parallel to the ground.
For example, the line will wear faster
when trimming against a foundation wall
as opposed to trimming around a tree.
DECORATIVE TRIMMING
Decorative trimming is accomplished
removing all vegetation around trees,
posts, fences and more. _ L _
Rotate the whole unit so that the cutting Fig. 15
attachment is at a 30° angle to the ground (Fig. 15).
the ground while the unit is
running.
Entanglement with foreign matter
Normal line fatigue
Attempting to cut thick, stalky weeds
Forcing the line into objects such as walls or fence posts
Do not force the cutting attachment. Allow the tip of the line to do
the cutting, especially along walls. Cutting with more than the tip
will reduce cutting efficiency and may overload the engine.
Cut grass over 8 inches (200 mm) by working from top to bottom
in small increments to avoid premature line wear or engine drag.
Slowly move the trimmer into and out of the cutting area at the
desired height. Move either in a forward-backward or side-to-side
motion. Cutting shorter lengths produces the best results.
Trim only when grass and weeds are dry.
The cutting head and shield are designed to allow the unit to cut
in either direction, from right to left or left to right.
The life of your cutting line is dependent upon:
Proper adherence of explained trimming techniques
- What vegetation is cut
- Where vegetation is cut
Fig. 14
\
_ ARNING-" To prevent serious injury, never perform
Perform these required maintenance procedures at the frequency
stated in the table. These procedures should also be a part of any
seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or
NOTE: Maintenance, replacement, or repair of the emission
RAPID REWIND TM CUTTING HEAD LINE iNSTALLATiON
Only use 0.095 in. (2.41 mm) replacement line. Other linewidth may make
the engine overheat or fail.
NOTE: There may be a need
1. Align the arrows on the
2. Using 10.5 ft. (3.2 m) of
3. Hold the cutting head knob
maintenance or repairs with unit running. Always service
and repair a cool unit.
skills. Ifyou are unsure about these procedures take your unit to
Sears or other qualified service dealer. Call 1=800=235=5878for
more information.
control devices and system may be performed by a Sears
or other qualified service dealer. Call 1=800=235=5878 for
more information.
FREQUENCY MAINTENANCE REQUIRED SEE
Before starting Fill fuel tank with fresh fuel p. 6
engine Check oil p. 9
Every 10 hours Clean air filter p. 9
1st change at Change oil p. 9
10 hours
Every 40 hours Clean spark arrestor and change oil p. 11
after
Every 40 hours Check rocker arm to valve clearance p. 10
to remove the old line
prior to installing new
line. If so, please refer
to Removing the old
line or obstructions.
cutting head knob with the
outer spool eyelets, if they
are not already.(Fig. 16)
0.095 in. (2.41 mm)
replacement line push an
end of the line through one
of the eyelets until it
protrudes through the
opposite side. Continue
pushing or pulling the line
until the line is evenly
distributed, so
approximately 5 ft. (1.5 m)
isvisible from both sides of
the cutting head.(Fig. 17)
and turn the cutting head
clockwise to wind the line
around the innerreel until 5
in.(12.7 cm) isprotruding
from each side of the
cutting head.(Fig. 17)
and adjust
Check spark plug condition and gap p. 11
Arrow Head Knob
Eyele_
Fig. 16
Fig. 17
Fig. 18
Cutting
Tab
NOTE:
4. Start the unit and bump
REMOVING THE OLD LINE
OR OBSTRUCTIONS
NOTE: There should only be
1. Firmly press in on the tabs
NOTE: It may be easier to
2. Detach the bump cap either by letting it pop off, or a slight
3. Remove any old line from the inner reel or obstructions from the
4. Place the inner reelback into the outer spool (Fig. 19).
5. Reattach the bump cap by aligning the tabs of the bump cap
To install new line, please refer to the Line installation section.
CHANGING THE CUTTING HEADS
Ifwinding the line from
a large spool, push
approximately 5 ft. (1.5
m)of line through the
cutting head to the
other side. Turn the
cutting head to wind
the line in. When the
line winds to a distance
of 5 in. from the head,
cut the line on the
spool side 5 inches
from the head.
the cutting head on the
ground until the desired
cutting length is achieved.
a need to remove the
bump cap if there is
an obstruction or
jammed line
preventing either new
line installation or line
advancement.
Bump Cap
inner ''''LL_U_"
Reel ----_--_ " Cutting
Outer ____e_l_:_=_
Spool
Fig. 19
Fig. 20
. Spring
Head Knob
_ Gearbox
@
that are on each side of the
cutting head. (Fig. 18)
press in and then up
on one tab at a time.
wiggle of the cap may be required to pull it off the outer spool
(Fig. 19)
outer spool. (Fig. 20)
with the tab lock windows of the outer spool and press down
firmly until both tabs snap back into place. (Fig. 21)
Fig. 21
WARNING: The gear housing gets hot with use. It can
result in injury to the operator. The housing remains hot for
a short time even after the unit is turned off. Do not touch
the gear housing until it has cooled.
WARNING: To avoid serious personal injury or damage
to the unit, do not start or operate this unit with the locking
rod in the locking rod slot.
This unit was also shipped with a Hassle FreeTM PLUS cutting head.
Either cutting head may be used at the operator's discretion.
Removing the Rapid Rewind TM Cutting Head
1. Align the shaft bushing hole
with the locking rod slot
and insert the locking rod
into the output shaft
bushing hole (Fig. 22).
2. Hold the locking rod in
place by grasping it next
to the shaft housing of the
unit (Fig. 23).
3. While holding the locking
rod, remove the cutting
head by turning it clockwise off of the output shaft (Fig. 22).
Store the cutting head for future use.
installing the Hassle Free TM PLUS Cutting Head
1. Place the cutting head
onto the output shaft and
turn counterclockwise
until finger tight. (Fig. 24)
2. Align the output shaft
bushing hole with the
locking rod slot and insert
the locking rod into the
shaft bushing hole (Fig. 22).
3. Hold the locking rod in Fig. 23
place by grasping it next
to the shaft housing of the Glide Plate
unit (Fig. 23). "--,_ PLUS Head
4. Using a 1/2 in (13 mm) IJ_l_ _ ,_
open-end wrench, tighten
the cutting head securely Output Shaft
in place. Remove the
locking rod.
Refer to the Hassle-Free TM
PLUS line replacement Fig. 24
instructions, for line installation.
Removing the Hassle-Free TM PLUS Cutting Head
1. Align the output shaft
bushing hole with the _ _,,,_
locking rod slot and insert
the locking rod into the Output
output shaft bushing hole uSshhiftn
(Fig. 22). B g .J=L _"
2. Hold the locking rod in Ho,e ----_!_,,_
place by grasping it next Locking ]_)r------_
to the shaft housing of the Rod ----_._
unit (Fig. 23). Fig. 25
3. Use a 1/2 in (13 ram)
wrench to remove the cutting head from the output shaft on the
gearbox by turning clockwise. (Fig. 24)
Installing the Rapid Rewind TM cutting head
1. Align the output shaft bushing hole with the locking rod slot and
insert the locking rod into the shaft bushing hole (Fig. 25).
2. Hold the locking rod in place by grasping it next to the shaft
housing of the unit (Fig. 23).
3. Screw the cutting head counterclockwise onto the output shaft.
Tighten securely. (Fig. 25) Remove the locking rod.
HASSLE=FREE TM PLUS LINE REPLACEMENT
Always use Craftsman Hassle-Free TM XTRA QUIET Spiral Line.
Choose the line size best suited for the job at hand. Red colored line
is designed for cutting grass and small weeds. Black colored line is
designed for cutting larger weeds and light brush.
NOTE: Before inserting new
NOTE:
1.
2.
line into the holes in
the cutting head,
identify the proper
holes. Follow
directions as shown
on the glide plate. Do
Not attempt to
remove the cutting
head from the unit
when replacing line.
Do not mix lines. Use
2 black or 2 red only.
Remove the old line and
line glide plate from the
cutting head.
Clean entire surface of
cutting head.
Rapid Rewind TM Head
Cuttinc Head
Large Holes
Hassle Free TM
GEde Plate
Fig. 26
Fig. 27
3. Reinstall line glide plate
(Fig. 26). The glide plate is
a keyed item and will only
fit one way. If it does not
go into the cutting head
smoothly, DO NOT force it.
Rotate the glide plate until
it slides into the cutting
head easily.
NOTE: The glide plate must
4,
5.
6.
NOTE:
7. Repeat steps 4 thru 6 to install the second trimmer line.
NOTE: Do not rest the Hassle-Free TM PLUS Cutting Head on the
Some line breakage will occur from:
• Entanglement with foreign matter
NOTE: During normal use the trimming line may become worn
CHECKING THE OIL LEVEL
be installed in the
cutting head before inserting new line.
Insert both ends of your line through the large holes in the side
of the cutting head (Fig. 27).
Push and/or pull the lineso that the line issnug against the hub and
isfully extended through the positioning tunnels. (Fig.28)
Correctly installed line will be the same length on both sides.
Make sure that when installing new line, that the line is as close
to even as possible. Any variation in lengths may cause the unit
to vibrate excessively. Ifthis happens, stop the unit and make
sure the line is even.
ground while the unit is running.
Normal line fatigue
Attempting to cut thick, stalky weeds
Forcing the line into objects such as walls or fence posts
unevenly which may cause excessive vibrations in the unit.
If this becomes uncomfortable or uncontrollable, stop the
unit and replace the line. Refer to the Line Replacement
instructions above.
PositioningTunnel
Fig. 28
-- l_ WARNI NG: To avoid serious personal injury, always turnyour unit off and allow it to cool before you clean or service it.
The importance of checking and maintaining the proper oil level in the
crankcase cannot be overemphasized. Check oil before each use:
1. Stop the engine and
allow oil to drain into the
crankcase.
2. Place the unit on a flat,
level surface to get a
proper oil level reading.
3. Keep dirt, grass clippings
and other debris out of
the engine. Clean the
area around the oil fill
plug before removing it.
4. Remove the oil fill plug.
5. Check the oil level. Oil
should be just to the
bottom of the threads of
the oil fill hole. (Fig. 30).
6. If the level is low, add a
small amount of oil to the
oil fill hole and recheck
(Fig. 30). Repeat this
procedure until the oil
level reaches the bottom of the threads in the oil fill hole.
NOTE:
NOTE:
Do not overfill the unit.
Make sure the O-ring is in place on the oil fill plug when
checking and changing the oil (Fig. 29).
O-Ring
Fig. 30
Oil Fill Plug
CHANGING THE OIL
-- i_[_ AUTION: Wear gloves to prevent injury when handling
For a new engine, change the oil after the first 25 hours of
operation. Change the oil while the engine is still warm. The oil will
flow freely and carry away more impurities.
1. Remove the oil fill plug.
2. Pour the oil out of the oil fill
3. Wipe up any oil residue on
4. Refill the crankcase with
NOTE: Use the bottle and
5. Replace the oil fill plug.
AIR FILTER MAINTENANCE
-- i_L_ AUTION: Wear gloves to prevent injury when handling
Cleaning the Air Filter
Clean the air filter every 10
hours of operation. It is an
important item to maintain.
Failure to maintain the air filter
properly can result in poor
performance or can cause
permanent damage to the
engine.
1. Open the air filter cover by
2. Removethe air filter (Fig. 38).
3. Wash the filter in detergent
4. Apply enough clean SAE
5. Squeeze the filter to
6. Replace the air filter into
the unit.
hole and into a container by
tipping the unit to the side
(Fig.31).Allow ample time
for complete drainage.
the unit and clean up any
oil that may have spilled.
Dispose of the oil
according to Federal, State
and local regulations.
2.2 fl. oz. (60 ml) of SAE -- Fill Line
30 SF, SG, SH oil.
spout saved from initial
use to measure the
correct amount of oil.
The top of the label on
the bottle measures approximately 3.04 ounces (90 ml)(Fig. 32).
Check the level (Fig. 25). If the level is low, add asmall amount
of oil and recheck. Do not overfill.
the unit.
Air Filter Cover
Lock Tab
Fig. 33
pressing the lock tab in
and pulling out on the air
filter cover (Fig. 33 & 34).
and water (Fig. 35). Rinse
the filter thoroughly and
allow it to dry.
30 motor oil to lightly coat
the filter (Fig. 36).
spread and remove
excess oil (Fig. 37).
the base plate (Fig. 38).
Air Filter Cover
\
Back Plate
Fig. 34
Fig. 35
9
NOTE:Iftheunitisoperated
withouttheairfilter,
youwillVOIDthe
warranty.
7. Reinstalltheairfilter
cover.Positionthetwo
smalltabsontheairfilter
coverintothetwoslotsin
thebackplateandpress
theairfiltercoverdown,
Fig. 36
makingsuretoalignthe
locktabwiththelocktab
slot,untilitsnapsinto
place(Fig.34&33).
IDLE SPEED ADJUSTMENT
The idle speed of the engine is
adjustable. An idle adjustment
screw is between the air filter
cover and the engine starter
housing (Fig. 39).
NOTE: Careless adjustments
First, Check Fuel
Old fuel is usually the reason for idle speed problems. Drain and
refill the tank with fresh fuel prior to making any adjustments. Refer
to Oil and Fuel Information.
Second, Clean Air Filter
The condition of the air filter is important to the operation of the unit.
A dirty air filter will restrict air flow. This is often mistaken for an out
of adjustment idle. Check the condition of the air filter before
adjusting the idle speed screw. Refer to Air Filter Maintenance.
Third, Adjust Idle Speed Screw
_ ARNING: The cutting attachment may spin during idle
If, after checking the fuel and cleaning the air filter, the engine still
will not idle, adjust the idle speed screw as follows:
1.
2. Release the throttle
NOTE: The cutting attachment should not rotate when the engine
3. If the cutting attachment rotates when the engine idles, turn the
Checking the fuel, cleaning the air filter, and adjusting the idle speed
should solve most engine problems. If not and any of the following are
true have the unit serviced by a Sears or other qualified service dealer:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
can seriously damage
the unit. Aside from
idle speed, only a
Sears or other
authorized service
dealer should make
carburetor
adjustments.
speed adjustments. Wear protective clothing and observe
a safety nstruct ons to prevent serous persona njury, j
Start the engine and let it
run at a high idle for a
minute to warm up. Refer
to Starting/Stopping
instructions.
trigger and let the engine
idle. If the engine stops,
insert a small phillips or
flat blade screwdriver into
the hole in the air filter/muffler cover (Fig. 39). Turn the idle
speed screw in, clockwise, 1/8 of a turn at a time (as needed)
until the engine idles smoothly.
idles.
idle speed screw counterclockwise 1/8 of a turn at a time (as
needed), to reduce idle speed.
Black
Air
Filter
Idle Adjustment ( _1
Screw
Fig. 37
Fig. 38
Fig. 39
ROCKER ARM CLEARANCE
-- m
I ,_ IWARNING: To avoid serious personal injury,always turn your I
I _lb I trimmer off and allow it to cool before you clean or maintain it.
i
This requires disassembly of the engine. If you feel unsure or
unqualified to perform this, take the unit to a Sears or other qualified
service center. Remove Screws
NOTE: inspect the valve to
1. Remove the two (2)screws
2. Remove the engine cover
3. Disconnect the spark plug
4. Clean dirt from around the
5. Clean dirt from around the
6. Pull the starter rope Adjusting--_-_ /
If these statements are not true, repeat step 6.
7. Slide the feeler gauge between the rocker arm and the top of
The recommended clearance for both intakeand exhaust is.003 - .006 in.
(.076 - 0.152 mm). Use a standard automotive .005 in.(0.127 ram) feeler
gauge. The feeler gauge should slide between the rocker arm and valve
stem with a slight amount of resistance, without binding. Figure43 and 44
show how to measure the clearance.
8.
a.
10
rocker arm clearance
with a feeler gauge
after the first 25 hours
of operation and then
every 25 hours of
operation thereafter.
The engine must be cold
when checking or adjusting Fig. 40
the valve clearance. Engine
This task should be Cover
performed inside in a clean,
dust free area.
on back of the engine
cover and the one on the
front of the engine cover
with a Flat-head or T-25
Torx screwdriver (Fig. 40).
(Fig. 41).
wire.
spark plug. Remove the
spark plug from the
cylinder head by turning a
5/8 in. (16 mm) socket
counterclockwise.
rocker arm cover. Remove
the screw holding the EXHAUST
rocker arm cover with a Rocker
large flat blade Arms
screwdriver or Torx T-25
bit (Fig. 42). Remove the
rocker arm cover and
gasket. Fig. 43
slowly to bring the piston Nut __ "/ GaugeFeeler
to the top of its travel,
(known as top dead I t___"_ ./
center). Check that: 0.003--0.006 in
The piston is at the top of its (0.076-0.152 ram)travel. This should be done
by looking intothe spark _Valve Stem
plug hole. (Fig.42) Fig. 44
Both rocker arms move freely, and both valves are closed
each valve stem. Measure the clearance between the valve
stem and rocker arm (Fig. 43). Measure both the intake and
exhaust valves.
If the clearance is not within specification:
Turnthe adjusting nut using a 5/16 inch (8 ram) wrench or nut driver
(Fig. 43).
To increase clearance, turn the adjusting nut counterclockwise.
To decrease clearance, turn the adjusting nut clockwise.
Rocker Arm
Cover
Spark
Plug Hole
Exhaust Rocker Arm
Fig. 41
Screw _
Fig. 42
Adjusting Nuts
INTAKE
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