Craftsman 316.791160 Operator's Manual
Operator's Manual
M
2-Cycle
WEEDWACKER® TRIMMER
Model No. 316.791160
o SAFETY
ASSEMBLY
OPERATION
MAINTENANCE
PARTS LIST
ESPANOL, R 11
CAUTION: Before using this
product, read this manual and
understand all safety rules
and operating instructions.
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
Visit our website: www.craftsman.com
769-06251 POO 8/10
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.
TABLE OF CONTENTS
Safety Rules ................................................. 2
Warranty .................................................... 4
Know Your Unit ............................................... 4
Assembly Instructions .......................................... 5
Oil and Fuel Information ........................................ 5
Starting/Stopping Instructions ................................... 6
Operating Instructions ......................................... 6
Maintenance and Repair Instructions .............................. 7
Cleaning and Storage .......................................... 8
Troubleshooting Chart ......................................... 9
Specifications ............................................... 10
Parts List ................................................... 22
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=06418 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.
The purpose of safety symbols is to attract your attention to possible I
dangers. The safety symbols, and their explanations, deserve your careful
attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not_
substitutes for proper accident prevention measures. J
SYMBOL MEANING
Attention is required in order to avoid serious personal injury. May
SAFETY ALERT: Indicates danger, warning or caution.
be used in conjunction with other symbols or pictographs.
NOTE: Advises of information or instructions vital to the operation or
I _ _DANGER: Failure to obey a safety warning will result in serious
NOTE= This Unit Can Use a Plug-In Power Start or Power Bit Start
Read the Operator's Manual and follow all warnings and safety
instructions. Failure to do so can result in serious injury to the operator
and/or bystanders. FOR QUESTIONS, CALL 1=800=4=MY=HOME®
maintenance of the equipment.
injury to yourself or to others. Always follow the safety precautions
to reduce the risk of fire, electric shock and personal injury.
to yourself and others. Always follow the safety precautions to
WARNING: Failure to obey a safety warning can result in injury
reduce the risk of fire, electric shock and personal injury.
property damage or personal injury to yourself or to others.
CAUTION: Failure to obey a safety warning may result in
Always follow the safety precautions to reduce the risk of fire,
electric shock and personal injury.
Optional Accessory!
Please refer to the Plug-In Power Start or Power Bit Start operator's
manual for proper use of these features. (Plug-In Power Start
included / Power Bit Start sold separately! Please refer to page 8 of
this manual for more information about these accessories.)
• IMPORTANT SAFETY INSTRUCTIONS •
READ ALL INSTRUCTIONS BEFORE OPERATING
followed. Please read these instructions before operating the unit
[_.1 ARNING: When using the unit, all safety rules must be
GENERAL SAFETY
• Read the instructions carefully. Be familiar with the controls and proper use of
in order to ensure the safety of the operator and any bystanders.
Please keep these instructions for later use.
the unit.
Keep these instructions. Referto them often and use them to instruct other
users. If loaning this unit to others, also loan them these instructions.
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 teens
guided by an adult.
Use the right tool. Only use this tool for its intended purpose.
Use the unit only in daylight or good artificial light.
Wear safety glasses or goggles that meet ANSI Z87.1 standards and are
marked as such. Wear ear/hearing protection when operating this unit. Wear a
face or dust mask if the operation is dusty.
Wear heavy long pants, boots, gloves and a long sleeve shirt. Do not wear
loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above
shoulder level.
Inspect the unit before use. Replace damaged parts. 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.
All guards and safety attachments must be installed properly before operating
the unit.
Use only replacement parts or accessories recommended for this unit that are
distributed by Searsor a Craftsman outlet. Use of any replacement parts or
accessories purchased elsewhere may be hazardous, and will void the warranty.
Be aware of risk of injury to the head, hands and feet.
Clear the area of children, bystanders and pets; keep them outside a 50-foot
(15 m) radius, at a minimum. Even then, they are still at risk from thrown
objects. Encourage bystanders to wear eye protection. Ifapproached, stop
the unit immediately.
• Carefully inspect the area before starting the unit. Remove all debris such as
rocks, broken glass, nails, wire, string and other objects which may be thrown
or become entangled inthe unit.
Squeeze the throttle control and check that it returns automatically to the idle
position. Make all adjustments or repairs before using the unit.
Always stop the unit when operation is delayed or when walking from one
location to another.
Always hold the unit with both hands when operating. Keep a firm grip on
both handles or grips.
Do not force the unit. Itwill do the job better and with less likelihood of injury
at a rate for which it was designed.
• Do not overreach or use from unstable surfaces such as ladders, trees, steep
slopes, rooftops, etc. Always keep proper footing and balance.
Do not operate the unit faster than the speed needed to do the job. Do not
run the unit at high speed when not in use.
Ifthe unit strikes or becomes entangled with a foreign object, stop the unit
immediately and check for damage. Do not operate before repairing damage.
Do not operate the unit with loose or damaged parts.
Keep unit clean of vegetation and other materials that may clog, gum or bind
moving parts, which may cause serious personal injury and or damage to the
unit.
Keep hands, face, and feet away from all moving parts. Do not touch or try to
stop any moving parts while they are in motion.
Allow the unit to cool before storing or transporting. Be sure to secure the unit
while transporting.
Never douse or squirt the unit with water or any other liquid. Keep handles
dry, clean and free from debris. Clean after each use, see Cleaning and
Storage instructions.
• Store the unit in a dry place, secured or at a height to prevent unauthorized
use or damage. Keep out of the reach of children.
OIL AND FUEL SAFETY • Avoid accidental starting. Be inthe starting position whenever pulling the
m i_ ARNING: Gasoline is highly flammable and its vapors can
• Store fuel only in containers specifically designed and approved for the
• Always stop the engine and allow it to cool before filling the fuel tank. Never
• Always mix or add fuel in a clean, well-ventilated outdoor area where there are
• Never Operate the unit without the fuel cap securely in place.
• Never start or run the unit inside a closed room or building. Breathing exhaust
• Check the unit for fuel leaks.
• Never store the unit with fuel in the tank, inside a building where fumes may
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.
explode if ignited. Take the following precautions:
storage of such materials.
remove the fuel tank cap or add fuel when the engine is hot. Never operate the
unit without the fuel cap securely in place.
no sparks or flames. Do not smoke.
Avoid creating a source of ignition for spilled fuel. Wipe up any spilled fuel
from the unit immediately before starting the unbit. Move the unit at least 30
fett (9.1 m) from the fueling source and site before starting the unit. Do not
smoke.
fumes can be fatal. Operate this unit only in a well-ventilated outdoor area.
Loosen the fuel tank cap slowly to relieve any pressure in the tank.
reach an open flame (pilot lights, etc.) or sparks (switches, electrical motors, etc.).
To reduce fire hazard, replace a faulty muffler and spark arrestor. Keep the
engine and muffler free from grass, leaves, excessive grease or carbon build up.
,, SAFETY & INTERNATIONAL SYMBOLS ,,
starter rope. The operator and unit must be in astable position while starting.
Refer to Starting/Stopping Instructions.
Do not touch the engine, gear housing or muffler. These parts get extremely
hot from operation, even after the unit is turned off.
This unit has a clutch. The unit attachment remains stationary when the engine
is idling. If itdoes not, take the unit to a Sears or other qualified service dealer
for an adjustment.
Turn the engine to off and disconnect the spark plug for maintenance or repair.
TRIMMER SAFETY
The trimmer attachment shield must always be inplace while operating the
unit. Do not operate unit without both trimming lines extended, and the proper
line installed. Do not extend the trimming line beyond the length of the shield.
Adjust the D-handle that provides the best possible grip.
Be sure the trimmer attachment is not in contact with anything before starting
the unit.
Use only 0.095 in. (2.41 mm) diameter replacement line. Never use metal-
reinforced line, wire, chain or rope. These can break off and become
dangerous projectiles.
Keep unit clean of vegetation and other materials. They may become lodged
between the trimmer attachment and shield.
Keep hands, face, and feet away from all moving parts. Do not touch or try to
stop the trimmer attachment when it rotates.
SAVETHESEINSTRUCTIONS
SYMBOLSYMBOL MEANING
W/
:::::_:ev!
I
|
i
3
CRAFTSMAN 2 YEAR FULL WARRANTY
FOR 2 YEARS from the date of purchase, this product is warranted against any defects in material or workmanship. Defective product will receive free repair or
free replacement if repair is unavailable.
For warranty coverage details to obtain repair or replacement, visit the web site: www.craftsman.com
This warranty covers ONLY defects in material and workmanship. Warranty coverage does NOT include:
• Expendable items that can wear out from normal use within the warranty period, such as cutting line, filters or spark plugs.
Product damage resulting from user attempts at product modification or repair or caused by product accessories.
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 is void if this product is ever used while providing commercial services or if rented to another person.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
Sears Brands Management Corporation, Hoffman Estates, IL 60179
APPLICATIONS
As a trimmer:
• Cutting grass and light weeds Muffler
Edging Spark Plug
Decorative trimming around trees, fences, etc.
Other optional accessories may be used with this unit. Starter Rope
Grip
Hassle Free ®
Cutting Head
Shaft Housing
Cutting Head Shield
Convertible TM
Coupler
D-Handle
On/Off
Controm
Shaft Grip
Throttle
Controm
Air Filter
Cover
Fuel Cap
ADJUSTING THE D=HANDLE Shaft Grip Shaft Housing
1. Loosen the bolt on the
handle just enough to move it
(Fig. 1).
2. While holding the unit in the
operating position (Fig. 9),
move the D-handle to the
location that provides the
best grip. D-Handle
3. Tighten the bolt until the D-
handle is secure (Fig. 1).
OPERATING THE CONVERTIBLE TM COUPLER SYSTEM
The Convertible TM coupler system enables the use of these optional attachments.
., Edger Primary Hole
* Turbo Blower
" Cultivator _ _, _---_¢"-'/_
Brushcutter
., Hedge Trimmer
oes w
INSTALLING THE TRIMMER Upper Shaft
ATTACHMENT OR OTHER Housing Lower Shaft
ATTACHMENT Housing
NOTE: To make installing or
1. Turn knob counterclockwise
2. While firmly holding the
NOTE: Aligning the release
3. Turn the knob clockwise to tighten (Fig. 3).
For decorative edging with the line
head trimmer attachment or other C°nvertibleTM Release Button
attachment, lock the release ., /
button of the attachment into the
90° hole (Fig. 3).
REMOVING THE TRIMMER
ATTACHMENT OR OTHER
ATTACHMENT
1. Turn the knob
2. Press and hold the release Fig. 4
3. While firmly holding the upper shaft housing, pull the attachment straight
removing the attachment
easier, place the unit on
the ground or on a work
bench.
to loosen (Fig. 3).
attachment, push it straight
into the Convertible TM
coupler until the release
button snaps firmly into the
primary hole (Fig. 2).
button with the guide recess will help installation (Fig. 4).
counterclockwise to loosen Guide Recess
(Fig. 3).
button (Fig. 4).
out of the Convertible TM coupler (Fig. 2).
90° Edging Hole
(Trimmer Only)
Coupler
Fig. 2
_Knob
Fig. 3
OIL AND FUEL MIXING INSTRUCTIONS
Old and/or improperly mixed fuel are the main reasons for the unit not
running properly. Be sure to use fresh, clean unleaded fuel. Follow the
instructions carefully for the proper fuel/oil mixture.
Definition of Blended Fuels
m i_ ARNING: It has been proven that fuel containing greater than
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. It forms acids when
stored. When using alcohol-blended fuel, use fresh fuel (less than 30 days
old).
Using Blended Fuels
If choosing to use a blended fuel, or its use is unavoidable, follow
recommended precautions:
. Always agitate the fuel mix before fueling the unit
. Drain the tank and run the engine dry before storing the unit
Using Fuel Additives
10% ethanol will likely damage this engine and void the warranty.
Always use the fresh fuel mix explained in the operator's manual
CAUTION: For proper engine operation and maximum
reliability, pay strict attention to the oil and fuel mixing instructions
on the 2-cycle oil container. Using improperly mixed fuel can
severely damage the engine.
The bottle of 2-cycle oil that came with the unit contains a fuel additive that
will help inhibit corrosion and minimize the formation of gum deposits.
Always use a good 2-cycle oil designed for air-cooled engines along with a
fuel additive, such as STA-BIL® Gas Stabilizer or an equivalent. Add 0.8 oz.
(23 ml) of fuel additive per gallon of fuel according to the instructions on the
container. NEVER add fuel additives directly to the unit's fuel tank.
Thoroughly mix the proper ratio of
2-cycle engine oil with unleaded
gasoline in a separate fuel can. Use
a 40:1 fuel/oil ratio. Do not mix
them directly inthe engine fuel tank.
See the table below for specific gas
and oil mixing ratios.
NOTE: One gallon (3.8 liters) of
NOTE: Dispose of the old fuel/oil
_ WARNING: Gasoline is extremely flammable. Ignited vapors
FUELING THE UNIT
unleaded gasoline mixed
with one 3.2 oz. (95 ml)
bottle of 2-cycle oil makes
a 40:1 fuel/oil ratio.
mix in accordance to
Federal, State and Local
regulations.
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.
UNLEADED GAS
f GALLON US
(3.8 LITERS)
f LITER
MiXiNG RATIO _40il
2 CYCLE OIL
3.2 FL. OZ.
(95 ml)
25 ml
_ WARNING: Remove fuel cap slowly to avoid injury from fuel
_ WARNING: Add fuel in a clean, well ventilated outdoor area. Wipe
1. Turn unit on its side, with the
2. Place the gas container's
NOTE: Do not overfill the tank.
3. Wipe up any gasoline that
4. Reinstall the fuel cap. Fig. 5
5. Move the unit at least 30 ft.
spray. Never operate the unit without the fuel cap securely in place.
up any spilled fuel immediately. Avoid creating a source of ignition for
spilt fuel. Do not start the engine until fuel vapors dissipate.
fuel cap facing up, and
remove the fuel cap.
spout into the fill hole on the
fuel tank and fill the tank.
(Fig. 5)
may have spilled.
(9.1 m)from the fueling source and site before starting the engine.
5
m
A I WARNIN6: Operate this unit only ina well-ventilated outdoor area.
_ Carbon monox de exhaust fumes can be ethan a conf ned area.
I _ I WARNING: Avoid accidental starting. Make sure to be inthe !
NOTE: This unit has the Incredi-
STARTING INSTRUCTIONS
1. Mix fuel with oil. See Oil and
2. Fill the fuel tank with fresh,
NOTE: There is no need to turn
3. Fully press and release the
4. Flip the choke lever clockwise
5. Crouch in the starting
6. Wait and allow the unit to idle
7. Squeeze and hold the throttle Fig. 8
IF... The engine does not start, go back to step 3.
NOTE:
STOPPING INSTRUCTIONS
1. Release the throttle control and allow the engine to cool down by idling.
2. Press and hold the On/Off Control switch in the OFF (O) position until
HOW TO START THE UNiT USING THE PLUG-IN POWER START OR
POWER BiT START ACCESSORY
NOTE- This unit can use a Plug-in Power Start or Power Bit Start
starting position when pulling the starter rope (Fig. 8). To avoid serious
injury,the operator and unit must be in a stable position while starting.
PullTM starting system,
which significantly
reduces the effort
required to pull the
starter rope.
Fuel Mixing Instructions.
clean fuel mix. Refer to
Fueling the Unit.
the unit on. The On/Off
Control is in the ON (I)
position at all times (Fig. 6).
primer bulb 10 times, slowly.
Some amount of fuel should
be visible in the primer bulb
and fuel lines (Fig. 7). If fuel
can not be seen in the bulb,
press and release the bulb
until fuel is visible.
until it clicks (Fig. 7).
position (Fig. 8). Do not
squeeze the throttle. Pull the
starter rope in a controlled
motion until the unit starts.
for 5 - 10 seconds. If the unit
stops running during this
time, squeeze the throttle
control and pull the starter
rope in a controlled motion
until the unit starts.
control for 30 to 60 seconds to allow the unit to warm up.
If the unit is hot and fails to start within 3 pulls of the starter rope,
squeeze the throttle control and pull the starter rope until the unit
starts.
the unit comes to a complete stop (Fig. 6).
optional accessory!
Please refer to the Plug-In Power Start or Power Bit Start operator's
manual for proper use of this feature. (Plug-In Power Start included /
Power Bit Start sold separately. Please refer to page 8 of this manual
for more information about these accessories.)
off (o) _._
Choke LeverJ
Primer
Bulb
Fig. 6
Fig. 7
Control
Starting
Position
STARTING iNSTRUCTiONS
1. Mix gas with oil. See Oil and Fuel Mixing Instructions.
2. Fill the fuel tank with the fuel/oil mixture.
NOTE: There is no need to turn the unit on. The On/Off Control is in the
ON (I) position at all times (Fig. 6).
3. Fully press and release the primer bulb 10 times, slowly. Some amount of
fuel should be visible in the primer bulb and fuel lines (Fig. 7).If fuel can not
be seen in the bulb, press and release the bulb as many times as it takes
until fuel can be seen in it.
4. Flip the choke lever clockwise until it clicks (Fig. 7).
5. Crouch in the starting position (Fig. 8). Do not squeeze the throttle. Place
the Plug-In Power Start or Power Bit Start into the back of the unit.
Refer to the Operation section of the Plug-In Power Start or Power Bit
Start operator's manual.
6. Press and hold the ON (I) button of the Plug-in Power Start or Power Bit
Start equipped drill in intervals no longer than 4 seconds each until the
unit starts.
7. Wait and allow the unit to idle for 5 - 10 seconds. If the unit stops running
during this time, squeeze the throttle control, then press and hold the ON
(I) button of the Plug-in Power Start or Power Bit Start equipped drill in
intervals no longer than 4 seconds each until the unit starts.
8. Remove the Plug-In Power Start or drill from the unit.
9. Squeeze and hold the throttle control for 30 to 60 seconds to allow the
unit to warm up.
IF... The engine does not start, go back to step 3.
IF... The engine fails to start after a few attempts, squeeze the throttle
control, then press and hold the Plug-In Power Start or drill ON (I)
button in intervals no longer than 4 seconds each until the unit starts.
STOPPING INSTRUCTIONS
1. Release the throttle control and allow the engine to cool down by idling.
2. Press and hold the On/Off Control in the OFF (O) position until the
engine comes to a complete stop (Fig. 6).
HOLDING THE UNiT
m ]_[_ ARNING: Always wear eye, hearing, foot and body protection
Before operating the unit, stand in
the operating position (Fig. 9).
Check for the following:
• The operator is wearing eye
• The unit is at waist level
TiPS FOR BEST TRIMMING RESULTS
• Keep the cutting head parallel to the ground.
For example, the line will wear faster when trimming against a foundation
wall as opposed to trimming around a tree.
to reduce the risk of injury when operating this unit.
protection and proper clothing
With a slightly-bent right arm,
the operator's hand is holding
the shaft grip
The operator's left arm is
straight, the left hand holding
the D-handle
The cutting head is parallel to
the ground and easily contacts the grass without the need to bend over
Do not force the cutting head. 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.
Cut from right to left whenever possible. Cutting to the left improves the
unit's cutting efficiency. Clippings are thrown away from the operator.
Slowly move the unit 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 life of the cutting line is dependent upon:
Following the trimming techniques
What vegetation is being cut
Where vegetation is cut
Fig. 9
Somelinebreakagewilloccurfrom:
• Entanglementwithforeignmatter
• Normallinefatigue
Attemptingtocutthick,stalky
weeds
Forcingthelineintoobjects
suchaswallsorfenceposts
DECORATIVE TRiMMiNG
Decorative trimming is
accomplished by removing all
vegetation around trees, posts,
fences, etc.
Rotate the whole unit so that the cutting head is at a 30 ° angle to the ground
(Fig. 10).
MAINTENANCE SCHEDULE
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 skills.
NOTE: Please read the California/EPA statement that came with the unit
FREQUENCY MAINTENANCE REQUIRED SEE
Every 10 hours Clean and re-oil air filter p. 7
Every 25 hours Check spark plug condition and gap p. 8
LINE REPLACEMENT
-- i
for Hassle-Free TM Cutting Head
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 line
1. Remove the old line and line
2. Clean entire surface of cutting
3. Reinstall line glide plate (Fig.
NOTE: Line glide plate must be
4. Insert both ends of your line
For these types of repairs call 1-800-4-MY-HOME® for more
information.
for a complete listing of terms and coverage for the emissions
control devices such as the spark arrestor, muffler, carburetor, etc
rope. These can break off and become dangerous projectiles.
WARNING: Never use metal-reinforced line, wire, chain or
into the holes in the
cutting head,identify the
proper holes. Follow
directions as shown on
the line glide plate. Do
Not attempt to remove
the cutting head from the
unit when replacing line.
glide plate from the cutting
head.
head. Note positions "A" and
"B" on the cutting head.
11). Align arrow with:
"A" when using medium (red) or
large (black)line, or
"B" when using lines with
diameters smaller than
medium (red)line
reinstalled incutting head
before inserting new line.
through the proper holes in
the side of the cutting head
(Fig. 12).
Fig. 10
Fig. 11
Positioning
Tunnel
Fig. 12
Fig. 13
Line Glide Plate
Line against
the hub
5. Pull the line and make sure the line is against the hub and is fully extended
through the positioning tunnels (Fig. 13).
6. Correctly installed line will be the same length on both sides.
NOTE: Do not rest the Hassle-Free TM Cutting Head on the ground while
AIR FILTER MAINTENANCE
-- i_ ARNING: To avoid serious personal injury, always turn the unit off
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 pressing the lock tab in and pulling out on
2. Remove the air filter (Fig. 14). Air Filter Cover
3. Wash the filter in detergent and
4. Apply enough clean SAE 30
5. Squeeze the filter to spread
6. Replace the air filter into the Lock Tab
NOTE: Operating the unit
7. Close the air filter cover by swinging it to the left and then pressing it
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. 15).
NOTE: Careless adjustments can seriously damage the unit. An authorized
If, after checking the fuel mixture and cleaning the air filter, the engine still
will not idle, adjust the idle speed screw as follows:
1. Start the engine and run for
2. Release the throttle trigger and
3. If the engine appears to be
Checking the fuel mixture, cleaning the air filter and adjusting the idle speed
should solve most engine problems. If not and all of the following are true:
Have the carburetor adjusted by an authorized service dealer.
the unit is running.
and allow itto cool before cleaning or maintaining it.
the air filter cover (Fig. 14).
water. Rinse the filter
thoroughly and allow itto dry.
motor oil to lightly coat the
filter.
and remove excess oil.
air filter cover (Fig. 14).
without the air filter WILL VOID the warranty.
down until the lock tab snaps into place (Fig. 14).
service dealer should make carburetor adjustments.
one minute to warm up.
Refer to Starting/Stopping
Instructions.
let the engine idle. Ifthe engine
stops, insert a small phillips
screwdriver into the idle
adjustment screw (Fig. 15).
Turn the idle speed screw
clockwise 1/8 of a turn at a
time (as needed) until the
engine idles smoothly.
idling too fast, turn the idle speed screw counterclockwise 1/8 of a turn
at a time (as needed), to reduce idle speed.
the engine will not idle
the engine hesitates or stalls on acceleration
there is a loss of engine power
Fig.14
Idle Speed
Fig. 15
7
Screw
Use a Champion RDJ7J or replacement part #753-06193 spark plug (or
equivalent). Remove the plug after every 25 hours of operation and check its
condition.
1. Stop the engine and allow it to cool. Grasp the plug boot firmly and pull
it from the spark plug.
2. Clean around the spark plug. Remove the spark plug from the cylinder
head by turning a 5/8-inch socket counterclockwise.
-- i_L_ ARNING: Do not sand blast, scrape or clean spark plug
3. Replace a cracked, fouled or
4. Install a correctly-gapped
5. Reattach the plug boot.
TRANSPORTING
• Allow the engine to cool before transporting.
• Tighten fuel cap before transporting.
• Secure the unit while transporting.
CLEANING
Use a small brush to clean off the outside of the unit. Do not use strong
detergents. Household cleaners that contain aromatic oils such as pine and
lemon, and solvents such as kerosene, can damage plastic housing or handle.
Wipe off any moisture with a soft cloth.
STORAGE
LONG TERM STORAGE
If planning on storing the unit for an extended time, use the following storage
procedure:
1. Carefully drain the fuel tank by running the unit dry or remove fuel cap
2. Start the engine and allow it to run until it stalls. This ensures that all
3. Allow the engine to cool. Remove the spark plug and put 3 - 5 drops of
NOTE: Remove the spark plug and drain all of the oil from the cylinder before
4. Thoroughly clean the unit and inspect it for any loose or damaged
electrodes. Grit in the engine could damage the cylinder.
dirty spark plug. Set the air
gap at 0.025 in. {0.635 rnrn)
using a feeler gauge (Fig. 16).
spark plug in the cylinder
head. Tighten by turning the
5/8-inch socket clockwise 0.025 in.
until snug. If using a torque (0.635 ram)
wrench, torque to:
110-120 in.olb. (12.3-13.5
Nora). Do not over=tighten.
Drain fuel from unit.
Never store a fueled unit where fumes may reach anopen flame or spark.
Allow the engine to cool before storing.
Store the unit locked up to prevent unauthorized use or damage.
Store the unit in a dry, well-ventilated area.
Store the unit out of the reach of children.
and tip the motor housing over and drain oil/gas fuel into a container
with the same 2-cycle fuel mixture. Do not use fuel that has been stored
for more than 30 days.
fuel has been drained from the carburetor.
any high quality motor oil or 2-cycle oil into the cylinder. Pull the starter
rope slowly to distribute the oil. Reinstall the spark plug.
attempting to start the trimmer after storage.
parts. Repair or replace damaged parts and tighten loose screws, nuts
or bolts. The unit is ready for storage.
t
Fig. 16
PLUG-IN POWER START AND POWER BiT START FEATURESREPLACING THE SPARK PLUG
This unit can be started with an optional
Plug-In Power Start or Power Bit Start
(Plug-In Power Start included / Power Bit
Start sold separately). If choosing to start
the unit using one of these features or
have questions, please contact your local
Craftsman retailer or call 1-800=4-MY=
HOME@ for more information and
purchasing. You may also go to
www.craftsman.com.
item No. Description
316.85951 ..................................... Plug-In Power Start
316.85952 ........................................ Power Bit Start
Power Start Feature
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