Craftsman 358.79182 User Manual

Operator's Manual
ICRRFTSMRN°I
25cc/1.5 cu.in. 2-Cycle
17 Inch Cutting Path / 0.080 Inch Line GASOLINE WEEDWAOKER ®
Model No.
358.791820
Safety
Operation
Maintenance
Parts List
Espar_ol, p 17
WARNING:
Read and follow all Safety Rules and Operating Instructions before first use of this product.
For answers to your questions about this product:
Call 7 am-7 pm, Mon.-Sat., or 10 am-7 pm, Sun.
1-800-235-5878 _Ho°_slisted are Central Time)
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. 545167648 Rev. 3 1/15/08 BRW
Warranty Statement 2 Storage 11 Safety Rules 2 Troubleshooting Chart 12 Assembly 4 Emissions Statement 13 Operation 5 Parts List 15
Maintenance 8 Spanish 17 Service & Adjustments 10 Parts and Ordering Back
ONE YEAR FULL WARRANTY ON CRAFTSMAN GAS WEEDWACKER When used and maintained according to the operator's manual, ifthis product fails due
to a defect in material or workmanship within one year from the date of purchase, return it to any Sears store, Sears Service Center, or other Craftsman outlet in the United States
for free repair (or replacement if repair proves impossible). This warranty excludes cutting line, spark plug and air filter, which are expendable
parts that can wear out from normal use in less than one year. This warranty applies for only 90 days from purchase date if this product is ever used
for commercial or rental purposes. 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
dtSWARNING: When using gar-
dening appliances, basic safety pre- cautions must always be followed to
reduce the risk of fire and serious injury. Read and follow all instructions.
This power unit can be dangerous!
Operator is responsible for following instructions and warnings on unit and in manual. Read entire operator's manual
before using unit! Be thoroughly familiar with the controls and the proper use of
the unit. Restrict the use of this unit to persons who have read, understand,
and will follow the instructions and warnings on the unit and in the manual.
Never allow children to operate this unit.
OPERATOR'S MANUAL
DANGER: Never use blades or flailing devices. This unit is designed for line trimmer use only. Use of any
other accessories or attachments will increase the risk of injury=
SAFETY INFORMATION
ON THE UNIT
Q©©
_,WARNING: Trimmer line throws objects violently. You and others can be
blinded/injured. Wear eye and leg protection. Keep body parts clear of ro-
tating line.
_otection /_
_'WARNING: Hazard zone for thrown objects. Trimmer line can
throw objects violently. Others can be
blinded or injured. Keep children, by-
standers, and animals 50 feet (15 me- ters) away. Stop unit immediately if ap-
proached.
If situations occur which are not cov- ered in this manual, use care and good judgment. If you need assis-
tance, contact your Sears Service
Center or call 1-800-235-5878.
OPERATORSAFETY
Dressproperly.Alwayswearsafety glassesorsimilareye protection
when operating, or performing main- tenance, on your unit (safety
glasses are available). Eye protec- tion should be marked Z87.
Always wear face or dust mask if op- eration is dusty.
Always wear heavy, long pants, long sleeves, boots, and gloves. Wear- ing safety leg guards is recom-
mended.
Always wear foot protection. Do not go barefoot or wear sandals. Stay
clear of spinning line.
Secure hair above shoulder length. Secure or remove loose clothing or
clothing with loosely hanging ties, straps, tassels, etc. They can be caught in moving parts.
Being fully covered also helps pro- tect you from debris and pieces of toxic plants thrown by spinning line.
Stay Alert. Do not operate this unit when you are tired, ill, upset or un-
der the influence of alcohol, drugs, or medication. Watch what you are doing; use common sense.
Wear hearing protection.
Never start or run inside a closed room or building. Breathing exhaust
fumes can kill.
Keep handles free of oil and fuel.
UNIT / MAINTENANCE SAFETY
Disconnect the spark plug before performing maintenance except car-
buretor adjustments.
Look for and replace damaged or loose parts before each use. Look
for and repair fuel leaks before use. Keep in good working condition.
Replace trimmer head parts that are chipped, cracked, broken, or dam- aged in any other way before using
the unit.
Maintain unit according to recom- mended procedures. Keep cutting
line at proper length.
Use only 0.080 inch (2 mm) diame- ter Craftsman brand line. Never use
wire, rope, string, etc.
Install required shield properly before using the unit. Use only specified trim-
mer head; make sure it is properly installed and securely fastened.
Make sure unit is assembled cor- rectly as shown in this manual.
Make carburetor adjustments with lower end supported to prevent line
from contacting any object.
Keep others away when making car- buretor adjustments.
Use only recommended Craftsman accessories and replacement parts.
Have all maintenance and service not explained in this manual per-
formed by a Sears Service Center.
FUEL SAFETY
Mix and pour fuel outdoors.
Keep away from sparks or flames.
Use a container approved for fuel.
Do not smoke or allow smoking near fuel or the unit.
Avoid spilling fuel or oil. Wipe up all fuel spills.
Move at least 10 feet (3 meters) away from fueling site before start-
ing engine. Stop engine and allow to cool before removing fuel cap.
Empty the fuel tank before storing or transporting the unit. Use up fuel left
in the carburetor by starting the en- gine and letting it run until it stops.
Store unit and fuel in area where fuel vapors cannot reach sparks or open
flames from water heaters, electric motors or switches, furnaces, etc.
Always store gasoline in a container approved for flammable liquids.
CUTTING SAFETY ,_WARNING: Inspect the area be-
fore each use. Remove objects
(rocks, broken glass, nails, wire, etc.)
which can be thrown by or become entangled in line. Hard objects can
damage the trimmer head and be thrown causing serious injury.
Use only for trimming, scalping, mow- ing, edging and sweeping. Do not use
for pruning or hedge trimming.
Keep firm footing and balance. Do not overreach.
Keep all parts of your body away from muffler and spinning line. Keep
engine below waist level. A hot muf- fler can cause serious burns.
Cut only from your right to your left. Cutting on left side of the shield will
throw debris away from the operator.
Use only in daylight or good artificial light.
Use only for jobs explained in this manual.
TRANSPORTING AND STORAGE
Allow engine to cool; secure unit be- fore storing or transporting in vehicle.
Empty the fuel tank before storing or transporting the unit. Use up fuel left
in the carburetor by starting the en- gine and letting it run until it stops.
Storeunitandfuelinareawhere fuelvaporscannotreachsparksor
openflamesfromwaterheaters, electricmotorsorswitches,fur-
naces,etc.
Storeunitsolinelimiterbladecan- notaccidentallycauseinjury.The
unitcanbehungbytheshaft.
Storeunitoutofreachofchildren.
Thisunitisnotequippedwithananti- vibrationsystemandisintendedfor occasionaluseonly.
SAFETYNOTICE:Exposuretovibra- tionsthroughprolongeduseofgaso-
linepoweredhandtoolscouldcause bloodvesselornervedamageinthe
fingers,hands,andjointsofpeople pronetocirculationdisordersorab- normalswellings.Prolongedusein
coldweatherhasbeenlinkedtoblood vesseldamageinotherwisehealthy
people.Ifsymptomsoccursuchas numbness,pain,lossofstrength,
changeinskincolorortexture,orloss offeelinginthefingers,hands,or joints,discontinuetheuseofthistool andseekmedicalattention.Ananti-
vibrationsystemdoesnotguarantee theavoidanceoftheseproblems.
Userswhooperatepowertoolsona
continualandregularbasismustmon-
itorcloselytheirphysicalconditionand
theconditionofthistool. SPECIALNOTICE:Thisunitis
equippedwithatemperaturelimiting
mufflerandsparkarrestingscreen
whichmeetstherequirementsofCali-
forniaCodes4442and4443.AllU.S. forestlandandthestatesofCalifornia,
Idaho,Maine,Minnesota,NewJersey, Oregon,andWashingtonrequireby
lawthatmanyinternalcombustionen-
ginesbeequippedwithasparkarrest-
ingscreen.Ifyouoperateinalocale
wheresuchregulationsexist,youare
legallyresponsibleformaintainingthe
operatingconditionoftheseparts.
Failuretodosoisaviolationofthe law.Fornormalhomeowneruse,the
mufflerandsparkarrestingscreenwill
notrequireanyservice.After50hours ofuse,werecommendthatyourmuf- flerbeservicedorreplacedbyyour
SearsServiceCenter.
CARTONCONTENTS Checkcartoncontentsagainstthefol-
lowinglist.
Model 358.791820
Trimmer
Shield
Wing Nut (screwed onto shield)
Container of Oil Examine parts for damage. Do not
use damaged parts.
NOTE: If you need assistance or find
parts missing or damaged, call
1-800-235-5878. It is normal for the fuel filter to rattle in
the empty fuel tank.
Finding fuel or oil residue on muffler is
normal due to carburetor adjustments and testing done by the manufacturer.
ASSEMBLY
WARNING: If received as-
sembled, repeat all steps to ensure your unit is properly assembled and all
fasteners are secure.
ADJUSTING THE HANDLE A_,WARNING: When adjusting tile
assist handle, be sure it remains above the safety label and below the mark or
arrow on the shaft.
1. Loosen wing nut on handle.
2. Rotate the handle on the shaft to an upright position; retighten wing nut.
ATTACHING SHIELD _WARNING: The shield must be
properly installed. The shield provides partial protection from the risk of thrown
objects to the operator and others and
is equipped with a line limiter blade
which cuts excess line to the proper
length. The line limiter blade (on under-
side of shield) is sharp and can cut you.
For proper orientation of shield, see KNOW YOUR TRIMMER illustration in OP-
ERATION section.
1. Removewingnutfromshield.
2. Insertbracketintoslotasshown.
3. Pivotshielduntilboltpasses throughholeinbracket.
PIVOT
Shield
Slot
Bracket
4. Securelytightenwingnutontobolt.
Line Limiter
Blade
Nut
KNOW YOUR TRIMMER READ THiS OPERATOR'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
UNIT. Compare the illustrations with your unit to familiarize yourself with the location of the various controls and adjustments. Save this manual for future reference.
Shaft Assist Handle
Muffler
\
Edge Spark Plug Guide _ Primer Bulb
Trimmer Head Line Limiter
Blade
Shield
STO P
Throttte Trigger
--Start Lever
Fuel Mix Fill Cap
Starter Handle
STOP SWITCH The STOP switch is used to stop the en- gine. To stop the engine, push and hold the switch in the STOP position until the
engine stops.
PRIMER BULB The PRIMER BULB removes air from the carburetor and fuel lines and fills
them with fuel. This allows you to start the engine with fewer pulls on the starter rope. Activate the primer bulb
by pressing it and allowing it to return to its original form.
BEFORE STARTING ENGINE
_,WARNING: Be sure to read the fuel information in the safety rules
before you begin. Ifyou do not understand the safety rules, do not
attempt to fuel your unit. Call
1-800-235-5878.
START LEVER
The START LEVER helps to supply fuel to the engine to aid in starting. Acti-
vate the starting system by moving the start lever to the START position. DO
NOT squeeze the throttle trigger until
the engine has started and runs. After the engine starts, allow the engine to
warm-up 10 seconds, then fully squeeze the throttle trigger to deacti-
vate the starting system.
EDGE GUIDE
The EDGE GUIDE protects tile unit from contacting the ground during edging.
FUELING ENGINE
A0&WARNING: Remove fuel cap slowly when refueling. This engine is certified to operate on
unleaded gasoline. Before operation,
gasoline must be mixed with a good quality synthetic 2-cycle air-cooled
engine oil.
5
WerecommendCraftsmanbrand syntheticoil.Mixgasolineandoilata
ratioof40:1.A40:1ratioisobtained bymixing3.2ouncesofoilwith1 gallonofunleadedgasoline.Included
withthistrimmerisa3.2ounce containerofoil.Pourtheentire
contentsofthiscontainerinto1gallon ofgasolinetoachievetheproperfuel
mixture.DONOTUSEautomotiveoilor boatoil.Theseoilswillcauseengine
damage.Whenmixingfuel,follow instructionsprintedoncontainer.
Onceoilisaddedtogasoline,shake containermomentarilytoassurethat
thefuelisthoroughlymixed.Always readandfollowthesafetyrules relatingtofuelbeforefuelingyourunit.
IMPORTANT
Experienceindicatesthatalcohol blendedfuels(calledgasoholorusing
ethanolormethanol)canattractmois- turewhichleadstoseparationand
formationofacidsduringstorage.Acidic gascandamagethefuelsystemofan
enginewhileinstorage.Toavoiden- gineproblems,emptythefuelsystem
beforestoragefor30daysorlonger.
Drainthegastank,starttheengineand
letitrununtilthefuellinesandcarbure- torareempty.Usefreshfuelnextsea-
son.Neveruseengineorcarburetor cleanerproductsinthefueltankorper-
manentdamagemayoccur.
SeetheSTORAGEsectionforadditional information.
HOW TO STOP YOUR UNIT
Release the throttle trigger.
To stop the engine, push and hold
the STOP switch in the STOP position until the engine stops.
HOW TO START YOUR UNIT
_WARNING: The trimmer head will turn while starting the engine.
Avoid any contact with the muffler. A hot muffler can cause serious burns.
Starting Position
NOTE: Make sure approximately 3-4 inches (8-10 cm) of line is ex- tended from the cutting head before
starting unit. This will allow the line to advance properly once the unit
starts.
STARTING A COLD ENGINE
NOTE: DO NOT squeeze the throttle
trigger until the engine has started and
runs.
1. Set unit on a flat surface.
2. Slowly press the primer bulb 6 times.
3. Move the start lever to the START position.
Primer Bulb
Start Lever
Starter Handle
4. This unit has the Sim-pul" starting system. You do not have to pull the
starter rope handle sharply or brisk- ly. Pull starter rope handle with a controlled and steady motion until engine starts and runs.
5. Allow unit to run for 10-15 seconds, then fully squeeze the throttle trigger
to disengage the starting system (start lever returns to RUN position).
STARTING A WARM ENGINE
1. Squeeze and hold the throttle trig- ger.
2. Pull starter rope handle with a con- trolled and steady motion while squeezing throttle trigger until en-
gine starts and runs.
NOTE: Normally, the warm starting procedure can be used within 5-10
minutes after the unit is turned OFR If
the unit sits for more than 10 minutes without being run, it will be necessary
to start the unit by following the steps
under STARTING A COLD ENGINE or
following the starting instruction steps shown on the unit.
6
STARTINGAFLOODEDENGINE
Floodedenginescanbestartedby pullingthestarterhandlerepeatedly whilesqueezingthrottletriggeruntil
engine starts and runs. This could re- quire pulling the starter handle many times, depending on how badly the
unit is flooded.
if the unit still doesn't start, refer to the TROUBLESHOOTING TABLE or call
1-800-235-5878. OPERATING INSTRUCTIONS
To maximize operating efficiency, do not run the engine for longer than 1
minute at a time at full throttle. OPERATING POSITION
Eye protection
ALWAYS WEAR: _.,__
Long pants__
Heovyshoe2
Out from your right to y left,
z_ dt_WARNING: Always wear eye
protection. Never lean over the trimmer head. Rocks or debris can ricochet or
be thrown into eyes and face and cause blindness or other serious injury.
When operating unit, stand as shown and check for the following:
Wear eye protection and heavy
clothing.
Hold trigger handle with right hand
and assist handle with left hand.
Hold unit so that engine is below
waist level.
Cut only from your right to your left to
ensure debris is thrown away from you. Without bending over, keep line
near and parallel to the ground and not crowded into material being cut.
Do not run the engine at a higher speed than necessary. The cutting
line will cut efficiently when the engine is run at less than full throttle. At lower
speeds, there is less engine noise and vibration. The cutting line will last
longer and will be less likely to "weld" onto the spool.
Always release the throttle trigger and allow the engine to return to idle
speed when not cutting. To stop engine:
Release the throttle trigger.
Push and hold the STOP switch in the STOP position until the engine stops.
TRIMMER LINE ADVANCE The cutting head advances line au-
tomatically. Do not tap head on the ground to advance line. This may
break parts and cause cutting head to
malfunction. Upon unit start up, the line will advance automatically to the correct cutting path length. Always keep the
shield in place when the tool is being operated.
_L, WARNING: Use only 0.080
inch (2 ram) diameter round line.
Other sizes and shapes of line will not advance properly and will result in im-
proper cutting head function or can cause serious injury. Do not use other
materials such as wire, string, rope, etc. Wire can break off during cutting
and become a dangerous missile that can cause serious injury. CUTTING METHODS
,_WARNING: Use minimum
speed and do not crowd the line when cutting around hard objects (rock,
gravel, fence posts, etc.), which can damage the trimmer head, become
entangled in the line, or be thrown causing a serious hazard.
The tip of the line does the cutting.
You will achieve the best perform- ance and minimum line wear by not crowding the line into the cutting area. The right and wrong ways are
shown below.
Tip of the Line Line Crowded Into
Does The Cutting Work Area
Right Wrong
The line will easily remove grass and weeds from around walls,
fences, trees and flower beds, but it also can cut the tender bark of trees
or shrubs and scar fences. To help avoid damage especially to delicate
vegetation or trees with tender bark, shorten line to 4-5 inches (10-13 cm) and use at less than full throttle.
Fortrimmingorscalping,useless thanfullthrottletoincreaselinelife
anddecreaseheadwear,especially:
Duringlightdutycutting.
Nearobjectsaroundwhichtheline
canwrapsuchassmallposts,
treesorfencewire.
Formowingorsweeping,usefull throttleforagoodcleanjob.
TRIMMING- Holdthebottomofthe trimmerheadabout3inches(8cm)
abovethegroundandatanangle.Al- lowonlythetipofthelinetomake contactwithvegetation.Donotforce
trimmerlineintoworkarea.
Trimming
3 inches (8 cm) above ground
SCALPING - The scalping technique removes unwanted vegetation down to the ground. Hold the bottom of the trimmer head about 3 inches (8 cm)
above the ground and at an angle. Al- low the tip of the line to strike the
ground around trees, posts, monu- ments, etc. This technique increases
line wear.
MOWING - Your trimmer is ideal for mowing in places conventional lawn
mowers cannot reach. In the mowing position, keep the line parallel to the
ground. Avoid pressing the head into the ground as this can scalp the ground and damage the tool.
Mowing
SWEEPING - The fanning action of the rotating line can be used for a
quick and easy clean up. Keep the
line parallel to and above the surfaces being swept and move the tool from
side to side.
Sweeping ___ .....
Scalping 3 inches (8 em)
above ground
/:/
MAINTENANCE SCHEDULE
WARNING: Disconnect the spark plug before performing maintenance except for carburetor adjustments.
CARE & MAINTENANCE TASK Check for loose fasteners and parts
Check for damaged or worn parts Inspect and clean unit and labels
Clean air filter Inspect muffler and spark arresting screen Replace spark plug
WHEN TO PERFORM
Before each use Before each use After each use
Every 5 hours of operation
Every 50 hours of operation
Yearly
8
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover items that have been subjected
to operator abuse or negligence. To receive full value from the warranty, the operator must maintain unit as
instructed in this manual. Various ad- justments will need to be made peri-
odically to properly maintain your unit.
CHECK FOR LOOSE
FASTENERS AND PARTS
Spark Plug Boot
Air Filter
Housing Screws
Assist Handle Screws
Debris Shield
CHECK FOR DAMAGED OR WORN PARTS
Contact Sears Service Center for re- placement of damaged or worn parts.
STOP Switch - Ensure STOP switch functions properly by pushing and
holding the switch in the STOP posi- tion. Make sure engine stops. Re-
start engine and continue.
Fuel Tank - Discontinue use of unit if fuel tank shows signs of damage
or leaks.
Debris Shield - Discontinue use of unit if debris shield is damaged.
INSPECT AND CLEAN UNIT AND
LABELS
After each use, inspect complete unit for loose or damaged parts.
Clean the unit and labels using a damp cloth with a mild detergent.
Wipe off unit with a clean dry cloth.
CLEAN AIR FILTER
A dirty air filter decreases engine per- formance and increases fuel con-
sumption and harmful emissions. Al- ways clean after every 5 hours of
operation.
1. Clean the cover and the area around it to keep dirt from falling into
the carburetor chamber when the
cover is removed.
2. Open air filter cover by pushing button (see illustration). Remove
air filter.
NOTE: To avoid creating a fire hazard
or producing harmful evaporative emissions, do not clean filter in gaso-
line or other flammable solvent.
3. Wash the filter in soap and water.
4. Allow filter to dry.
5. Replace air filter and close cover.
Button
Air Filter
Air Filter Cover
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
,_WARNING: The muffler on this
product contains chemicals known to
the State of California to cause cancer. As your unit is used, carbon deposits
build up on the muffler and spark arrest- ing screen. For normal homeowner use,
however, the muffler and spark arresting screen will not require any service. After 50 hours of use, we recommend
that your muffler be serviced or re-
placed by your Sears Service Center.
REPLACE SPARK PLUG
Replace the spark plug each year to ensure the engine starts easier and
runs better. Set spark plug gap at
0.025 inch. Ignition timing is fixed and
nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder
and discard.
3. Replace with Champion RCJ-6Y
spark plug and tighten securely with a 3/4 inch (19 mm) socket wrench.
4. Reinstall the spark plug boot.
LINE REPLACEMENT
Pre-wound spools offer the most con-
venient method for replacing line and ensuring optimum performance.
Replacement spools are color-coded to ensu re use of the correct spool with
your unit. Be sure to use the same color spool as the existing spool.
NOTE: Always clear dirt and debris
from cutting head components when performing any type of maintenance.
Hold spool and unscrew cap bytuming in the direction shown on top of the cap.
Remove line guide ring and spool.
Use a pre-wound spool or refill spool
with line. If using a pre-wound spool, remove tape strip from line and spool.
REFILLING THE SPOOL WITH LINE
_WARNING: Use only 0.080
(2 mm) inch diameter round line.
Other sizes and shapes of line will not advance properly and will result in im-
proper cutting head function or can cause serious injury. Do not use other
materials such as wire, string, rope, etc. Wire can break off during cutting
and become a dangerous missile that can cause serious injury.
1. Cut a length of 25 feet (8 meters) of 0.080 inch diameter round
Craftsman brand line.
2. Insert one end of line into center cavity of empty spool. Ensure line
will feed into spool in the direction
shown on the spool (counterclock-
wise).
Line guide ring
3. Continue feeding line into spool, leaving 4-6 inches (10-15 cm) un- wound from center of spool.
INSTALLING SPOOL WITH LINE
1. Install replacement spool.
2. Thread line through line guide ring.
Line through guide ring ,,
3. Rest guide ring on spool and place
4. Ensure line remains in slot while
CARBURETOR ADJUSTMENT
_WARNING: Keep others away when making idle speed adjustments.
The trimmer head will be spinning dur-
ing this procedure. Wear your protec-
tive equipment and observe all safety
precautions.
The carburetor has been carefully set at the factory. Adjustments may be
necessary if you notice any of the fol- lowing conditions:
Engine will not idle when the throttle is
released.
Make adjustments with the unit sup-
ported so the cutting attachment is off the ground and will not make contact with any object. Hold the unit by hand
while running and making adjustments.
Keep all parts of your body away from the cutting attachment and muffler.
Idle Speed Adjustment
Allow engine to idle. Adjust speed until engine runs without stalling (idle
speed too slow).
Turn idle speed screw clockwise to
increase engine speed if engine stalls or dies.
Turn idle speed screw counterclock- wise to decrease engine speed.
Replacement Spool
line through slot. Allow line to ex- tend 4-6 inches (10-15 cm) from
center of spool. screwing cap on to the shaft. Only
tighten cap hand tight!
lO
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