Craftsman 316.791020 Operator's Manual
Operator's Manual
2-Cycle
WEEDWACKER ®TRIMMER
Model No. 316.791020
INCREDI.PULL TM
UNBELIEVABLE STARTING EA S E
• 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 Brand Management Corporation, Hoffman Estates, IL 60179, U.S.A.
Visit our website: www.craftsman.com
769-06548 P00 10/10
TABLE OF CONTENTS
Safety Rules .................................................................................................. 2
Warranty ........................................................................................................ 4
Know Your Unit ............................................................................................. 4
Assembly Instructions ................................................................................... 4
Oil and Fuel Information ................................................................................ 5
Starting/Stopping Instructions ...................................................................... 5
Operating Instructions .................................................................................. 6
Maintenance and Repair Instructions ........................................................... 7
Cleaning and Storage ................................................................................... 8
Troubleshooting Chart ................................................................................... 9
Specifications ............................................................................................. 10
Parts List ..................................................................................................... 30
Service Numbers .......................................................................... Back Cover
CALIFORNIA PROPOSITION 65 WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS
KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH
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
DEFECTS OR OTHER REPRODUCTIVE HARM
• IMPORTANT SAFETY INSTRUCTIONS •
READ ALL INSTRUCTIONS BEFORE OPERATING
WARNING: When using the unit, all safety rules must be J
followed. Please read these instructions before operating the unit
n order to ensure the safety of the operator and any bystanders.
Please keep these instructions for later use.
GENERAL SAFETY
• Read the instructions carefully. Be familiar with the controls and proper
use of the unit.
• Keep these instructions. Refer to 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 heaw 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 Sears or 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. If
approached, stop the unit immediately.
he purpose of safety symbols is to attract your attention to possible dangers.J
he safety symbols, and their explanations, deserve your careful attentionJ
nd understanding. The safety warnings do not by themselves eliminate any_
anger. The instructions or warnings they give are not substitutes for proper_
ccident prevention measures. |
SYMBOL MEANING
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 of information or instructions vital to the operation or
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.
NOTE: This Unit Can Use an Electric Start or Power Start BitTM Optional
Please refer to the Electric Starter or Power Start BitTM operator's manual for
proper use of these features. (Items Sold Separately! Please refer to page 8
of this manual for more information about purchasing these accessories.)
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.
• Carefully inspect the area before starting the unit. Remove all debris such
• Squeeze the throttle control and check that it returns automatically to the
• Always stop the unit when operation is delayed or when walking from
• Always hold the unit with both hands when operating. Keep a firm grip
• Do not force the unit. It will do the job better and with less likelihood of
• Do not overreach or use from unstable surfaces such as ladders, trees,
• Do not operate the unit faster than the speed needed to do the job. Do
• If the unit strikes or becomes entangled with a foreign object, stop the
• Keep unit clean of vegetation and other materials that may clog, gum
• Keep hands, face, and feet away from all moving parts. Do not touch or
• Allow the unit to cool before storing or transporting. Be sure to secure
• Never douse or squirt the unit with water or any other liquid. Keep
• Store the unit in a dry place, secured or at a height to prevent
OIL AND FUEL SAFETY
maintenance of the equipment.
DANGER: Failure to obey a safety warning will result in
serious injury to yourself or to others. Always follow the safety
precautions to reduce the risk of fire, electric shock and personal
injury.
WARN ING: Failure to obey a safety warning can result in injur_
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.
Accessory!
as rocks, broken glass, nails, wire, string and other objects which may be
thrown or become entangled in the unit.
idle position. Make all adjustments or repairs before using the unit.
one location to another.
on both handles or grips.
injury at a rate for which it was designed.
steep slopes, rooftops, etc. Always keep proper footing and balance.
not run the unit at high speed when not in use.
unit immediately and check for damage. Do not operate before repairing
damage. Do not operate the unit with loose or damaged parts.
or bind moving parts, which may cause serious personal injury and or
damage to the unit.
try to stop any moving parts while they are in motion.
the unit while transporting.
handles dry, clean and free from debris. Clean after each use, see
Cleaning and Storage instructions.
unauthorized use or damage. Keep out of the reach of children.
_ WARNING: Gasoline is highly flammable and its vapors canexplode if ignited. Take the following precautions:
• Store fuel only in containers specifically designed and approved for the
storage of such materials.
• Always stop the engine and allow it to cool before filling the fuel tank.
Never remove the fuel tank cap or add fuel when the engine is hot. Never
operate the unit without the fuel cap securely in place.
• Always mix or add fuel in a clean, well-ventilated outdoor area where
there are no sparks or flames. Do not smoke.
• Nevern Operate the unit without the fuel cap securely in place.
• 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.
• Never start or run the unit inside a closed room or building. Breathing
exhaust fumes can be fatal. Operate this unit only in a well-ventilated
outdoor area.
• Check the unit for fuel leaks.
• Loosen the fuel tank cap slowly to relieve any pressure in the tank.
• Never store the unit with fuel in the tank, inside a building where fumes
may 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.
• Avoid accidental starting. Be in the starting position whenever pulling
the starter rope. The operator and unit must be in a stable 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 it does 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 in place 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.
SAVE THESE INSTRUCTIONS
• 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
CRAFTSMAN 2 YEAR FULL WARRANTY
FOR 2 YEAR(S) 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 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.
• Edging
• Decorative trimming around trees, fences, etc.
Other optional accessories may be used with this unit.
Convertible TM
Coupler
Shield
D-Handle
On/Off Switch
Muffler
Starter Rope
Gi
Throttle Control
: Plug
Fuel Cap
Choke Lever
Cutting
INSTALL CUTTING ATTACHMENT SHIELD
Use the following instructions if the cutting
attachment shield on the unit is not installed.
Use only the instructions that apply to the
type of shaft and shield that the unit is
equipped with.
1. Place the cutting attachment shield onto
the shaft housing. Be sure the guard
mounting bracket slides into the slot on
the edge of the cutting shield. Rotate squareBolt I I Washer
(Fig. 1). The holes in the guard mounting
bracket and cutting attachment shield will
line up.
the shield into place, counterclockwise _-___I
2,
From inside the cutting attachment shield,
push the square bolt through the hole until
the threaded end protrudes through the wingNut
guard mounting bracket (Fig. 2). Fig.2
3.
Put the washer on the bolt, then screw the
wing nut onto the bolt and tighten.
Shield \ Mount
Fig. 1
INSTALL AND ADJUST THE D-HANDLE
1. Push the D-handle down onto the shaft
housing (Fig. 3). The hex bolt hole in the
handle should be on the left side.
2. Insert the the bolt into the hex hole in
the handle and push through. Place the
washer on the bolt, then screw the wing
nut onto the bolt. Do not tighten until
making the handle adjustment.
Min. 6 in.
(15.24 cm)
Grip
Fig. 3
D-Handle
IJWing
Bolt
3. Rotate the D-handle to place the grip above the top of the shaft housing.
Place it a minimum of 6 inches (15.24 cm) from the end of the shaft grip.
4. While holding the unit in the operating position (Fig. 11), move the
D-handle to the location that provides the best grip.
5. Tighten the wing nut until the D-handle is secure.
Nut
OPERATINGTHECONVERTIBLETM COUPLER SYSTEM
The Convertible TM coupler system enables the use of these optional add-ons.
For information about attachments, call 1-800-4-MY-HOME®.
• Edger
• Cultivator
• Turbo Blower
• Brushcutter
• Pole Saw
• Hedge Trimmer
Removing the Add-On
1.
Turn the knob counterclockwise to loosen
(Fig. 6). Primary
2.
Press and hold the release button (Fig. 4). Hole \
3.
While firmly holding the upper shaft _'_r----_\-q__ ----_
housing, pull the lower shaft housing L-\J oql ? _'_-5,
straight out of the Convertible TM coupler
(Fig. 5). Upper Shaft Lower Shaft
Installing the Add-On Housing
NOTE: To make installing or removing the
add-on easier, place the unit on the g0° Edging
ground or on a work bench.
1. Turn knob counterclockwise to loosen (Fig. 6).
2. While firmly holding the add-on, push it
straight into the Convertible TM coupler
(Fig. 5).
NOTE: Aligning the release button with the
guide recess will help installation
(Fig. 4).
3. Turn the knob clockwise to tighten (Fig. 6).
For decorative trimming/edging with the line cutting head, lock the release
button into the 90° hole (Fig. 6).
Rapid Link TM Release
Cou Button
Guide Recesss
Fig. 4
Housing
Fig. 5
Hole
Knob
Fig. 6
IF... the unit came with a bottle of 2-cycle oil; pour the entire bottle into
1 gallon of gas and mix thoroughly.
NOTE: One gallon (3.8 liters) of unleaded fuel mixed with one 3.2 oz. (95
ml.) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.
NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and
Local regulations.
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.
FUELING THE UNIT
WARNING: Remove fuel cap slowly to avoid injury from fuel
spray. Never operate the unit without the fuel cap securely in place.
WARNING: Add fuel in a clean, level and well ventilated
outdoor area. Wipe up any spilled fuel immediately. Avoid
creating a source of ignition for spilled fuel. Do not start the
engine until fuel vapors dissipate.
1.
Turn unit on its side, with the fuel cap facing up, and remove the fuel cap.
2. Place the gas container's spout into the
fill hole on the fuel tank and fill the tank.
(Fig. 7)
NOTE: Do not overfill the tank.
3. Wipe up any gasoline that may have
spilled.
4. Reinstall the fuel cap.
5. Move the unit at least 30 ft. (9.1 m) from
the fueling source and site before starting
the engine.
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
WARNING : It has been pr°ven that fuel c°ntaining greater than I10% ethanol will likely damage this engine and void the warranty.I
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
WARNING: 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.
If choosing to use a blended fuel, or its use is unavoidable, follow
recommended precautions:
• Always use the fresh fuel mix explained in the operator's manual
• Always agitate the fuel mix before fueling the unit
• Drain the tank and run the engine dry before storing the unit
Using Fuel Additives
It is recommended to use the manufacturers 2-cycle oil with this unit. If
unavailable, 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.
Mixing The Fuel
Thoroughly mix the proper ratio of
2-cycle engine oil with unleaded fuel
in a separate fuel can. Use a 40:1 fuel/
oil ratio. Do not mix them directly in
the engine fuel tank. See the table for
UNLEADED GAS 2 CYCLE OIL
1 GALLON US 3.2 FL. OZ.
(3.8 LITERS) (95 ML)
1 LITER 25 ML
MIXING RATIO - 40:1
_1_ WARNING: Operate this unit only in a well-ventilated outdoorarea. Carbon monoxide exhaust fumes can be lethal in a
confined area.
WARNING: Avoid accidental starting. Make sure to be in the
starting position when pulling the starter rope (Fig. 10). To avoid
serious injury, the operator and unit must be in a stable position
while starting.
I
NOTE:
STARTING INSTRUCTIONS
1. Mix fuel with oil. See Oil and Fuel Mixing Instructions.
2. Fill the fuel tank with fresh, clean fuel mix. control
NOTE: There is no need to turn the unit on.
3. Fully press and release the primer bulb 10
4. Flip the choke lever clockwise until it clicks
5. Crouch in the starting position (Fig. 10). Do
6. Wait and allow the unit to idle for 5 - 10
7. Squeeze and hold the throttle control for 30
IF... The engine does not start, go back
NOTE: If the unit is hot and fails to start
This unit has the Incredi-Pull TM starting system, which significantly
reduces the effort required to pull the starter rope.
Refer to Fueling the Unit.
The On/Off Control is in the ON ( I)
position at all times (Fig. 8).
times, slowly. Some amount of fuel should Throttle J
be visible in the primer bulb and fuel lines control
(Fig. 9). If fuel can not be seen in the bulb,
press and release the bulb until fuel is
visible.
(Fig. 9).
not squeeze the throttle. Pull the starter
rope in a controlled motion until the unit
starts.
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.
to 60 seconds to allow the unit to warm up.
to step 3.
within 3 pulls of the starter rope, squeeze the throttle control and
pull the starter rope until the unit starts.
On/Off
Fig. 8
Fig. 9
Starting
Position
Fig. 10
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 the
unit comes to a complete stop (Fig. 8).
NOTE: This Unit Can Use an Power Start or Power Start Bit Optional
Accessory!
Please refer to the Power Starter or Power Start Bit operator's
manual for proper use of these features. (Items may be Sold
Separately! Please refer to page 8 of this manual for more
information about purchasing these accessories.)
STARTING INSTRUCTIONS
1. Mix fuel with oil. See Oil and Fuel Mixing Instructions.
2. Fill the fuel tank with fresh, clean fuel mix. Refer to Fueling the Unit.
NOTE: There is no need to turn the unit on. The On/Off Control is in the
ON ( I) position at all times (Fig. 8).
3. Fully press and release the primer bulb 10 times, slowly. Some amount of
fuel should be visible in the primer bulb (Fig. 9). If fuel cannot be seen in
the bulb, press and release the bulb until fuel is visible.
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 switch in the OFF (O) position until the
unit comes to a complete stop (Fig. 8).
HOLDING THE UNIT
Before operating the unit, stand in the operating position (Fig. 11). Check for
the following:
• The operator is wearing eye 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 unit is at waist level
• The cutting head is parallel to the ground
Fig. 11
and easily contacts the grass without the need to bend over
ADJUSTING TRIMMING LINE LENGTH
The Bump Head TM cutting head allows the release of trimming line without
stopping the engine. To release more line, lightly tap the cutting head on the
ground (Fig. 12) while operating the unit at high speed.
NOTE: Always keep the trimming line fully
extended. Line release becomes
more difficult when the cutting line
gets shorter.
Each time the head is bumped, about 1 inch
(25.4 mm) of trimming line releases. A blade in
the cutting head shield will cut the line to the
proper length if any excess line is released.
For best results, tap the bump knob on
Fig. 12
bare ground or hard soil. If attempting a line
release in tall grass, the engine may stall. Always keep the trimming line fully
extended. Line release becomes more difficult when the cutting line gets
shorter.
NOTE: Do not rest the Bump Head TM on the ground while the unit is
running.
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls or fence posts
TIPS FOR BEST TRIMMING RESULTS
• Keep the cutting head parallel to the ground.
• 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
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 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. 13).
Fig. 13
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. For
these types of repairs call 1-800-4-MY-HOME® for more information.
NOTE: Please read the California/EPA statement that came with the unit
for a complete listing of terms and coverage for the emissions
control devices, such as the spark arrestor, muffler, carburetor, etc
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 INSTALLATION
This section covers both SplitLine® and standard single line installation.
Always use original equipment manufacturer 0.095 in. (2.41 mm) replacement
line. Line other than the specified may make the engine overheat or fail.
There are two methods to replace the trimming line:
• Wind the inner reel with new line Knob
• Install a prewound inner reel Bolt
Removing the Existing Inner Reel
1. Hold the outer spool with one hand and
unscrew the bump knob counterclockwise
(Fig. 14). Inspect the bolt inside the
bump knob to make sure it moves freely.
Replace the bump knob if damaged. Fig.14
2. Remove the inner reel from the outer Outer Spool
spool (Fig. 15).
3. Remove spring from the inner reel (Fig. 15). -_
4. Use a clean cloth to clean the the inner \
reel, spring, shaft, and inner surface of the _
outer spool.
5. Check the indexing teeth on the inner \\
reel and outer spool for wear (Fig. 16). If
necessary, remove burrs or replace the Fig.15
reel and spool. Index Teeth
NOTE: Always use the correct line length
when installing trimming line on
the unit. The line may not release
properly if the line is too long.
Single Line Installation
Go To Step 8 for SplitLine® Installation:
6. Take approximately 20 feet (6 m) of new Fig.16
lengths. Insert each end of the line
through one of the two holes in the inner
reel (Fig. 17). Pull the line through the
inner reel so that the loop is as small as
trimming line, loop it into two equal . J..dJ/-
possible.
7. Wind the lines in tight even layers onto the
reel (Fig. 18). Wind the line in the direction Loop
indicated on the inner reel. Place an index
finger between the two lines to stop the Fig.17
lines from overlapping. Do not overlap the
ends of the line. Proceed to step 12.
SplitLine® Installation
8. Take approximately 10 feet (3 m) of new
trimming line. Insert one end of the line
through one of the two holes in the inner
reel (Fig. 19). Pull the line through the inner \
reel until only about 4 inches is left out. Fig.18
9. Insert the end of the line into the open
hole in the inner reel and pull the line tight
to make the loop as small as possible
(Fig. 19).
10. Before winding, split the line back about
6 inches.
11. Wind the line in tight even layers in the
direction indicated on the inner reel. Loop
NOTE: Failure to wind the line in the Fig.19
direction indicated will cause the
cutting head to operate incorrectly.
12. Insert the ends of the line into the two holding slots (Fig. 20).
13. Insert or slide the ends of the line through or into the eyelets in the outer
spool and place inner reel with spring inside the outer spool (Fig. 21).
Push the inner reel and outer spool together.
NOTE: The spring must be assembled on
the inner reel before reassembling
_lndex Teeth
the cutting head.
14. While holding the inner reel and outer
spool, grasp the ends and pull firmly to
release the line from the holding slots in
the spool.
15. Hold the inner reel in place and install the
bump knob by turning clockwise. Tighten
Fig. 20
securely.
Installing a Prewound Reel
1. Hold the outer spool with one hand and
unscrew the bump knob counterclockwise
(Fig. 14). Inspect the bolt inside the
bump knob to make sure it moves freely.
Replace the bump knob if damaged.
2. Remove the old inner reel from the outer
spool (Fig. 15).
Fig. 21
3. Remove the spring from the old inner reel (Fig. 15).
4. Place the spring in the new inner reel.
NOTE: The spring must be assembled on the inner reel before
reassembling the cutting head.
5. Insert or slide the ends of the line through or into the eyelets in the outer
spool (Fig. 21).
6. Place the new inner reel inside the outer spool. Push the inner reel and
outer spool together. While holding the inner reel and outer spool, grasp
the ends and pull firmly to release the line from the holding slots in the
spool.
7. Hold the inner reel in place and install the bump knob by turning
clockwise. Tighten securely.
AIR FILTER MAINTENANCE
Cleaning the Air Filter
The air filter 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 AirFilterCover
lock tab in and pulling out on the air filter
cover (Fig. 22).
2. Remove the air filter (Fig. 22).
3. Wash the filter in detergent and water.
Rinse the filter thoroughly and allow it to
dry.
4. Apply enough clean SAE 30 motor oil to AirFilter
lightly coat the filter. Fig. 22
5. Squeeze the filter to spread and remove excess oil.
6. Replace the air filter into the base plate (Fig. 22).
NOTE: Operating the unit without the air filter WILL VOID the warranty.
7. Reinstall the air filter cover. Position the two small tabs on the air filter
cover into the two slots in the base plate and press the air filter cover
down, making sure to align the lock tab with the lock tab slot, until it
snaps into place (Fig. 22).
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. 23).
NOTE: Careless adjustments can seriously damage the unit. An
authorized service dealer should make carburetor adjustments.
If, after checking the fuel mixture and cleaning the air filter, the engine still will
not idle, adjust the idle speed screw as follows:
WARNING: Cutting head may spin during idle speed
adjustments. Wear protective clothing and observe all safety
instructions to prevent serious personal injury.
1. Start the engine and run for one minute to warm up. Refer to Starting/
Stopping Instructions.
2. Release the throttle trigger and let the
engine idle. If the engine stops, insert
a small phillips screwdriver into the idle
adjustment screw (Fig. 23). Turn the idle
speed screw clockwise 1/8 of a turn at
a time (as needed) until the engine idles
smoothly.
3. If the engine appears to be idling Fig. 23
too fast, turn the idle speed screw
counterclockwise 1/8 of a turn at a time (as needed), to reduce idle
speed.
Checkingthefuelmixture,cleaningtheairfilterandadjustingtheidlespeed
shouldsolvemostengineproblems.Ifnotandallofthefollowingaretrue:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.
REPLACING THE SPARK PLUG
Use replacement #753-06193, a Champion RDJTJ spark plug, or
equivalent. The correct air gap is 0.025 inch (0.635 mm).
1. Stop the engine and allow it to cool. Grasp the plug wire 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.
WARNING: Do not sand blast, scrape or clean electrodes. Grit
in the engine could damage the cylinder.
3. Replace a cracked, fouled or dirty spark
plug. Set the air gap at 0.025 in. (0.635
mm) using a feeler gauge (Fig. 24).
4. Install a correctly-gapped spark plug in
the cylinder head. Tighten by turning the
5/8-inch socket clockwise until snug.
If using a torque wrench, torque to:
110-120 in..Ib. (12.3-13.5 N.m)
Do not over tighten.
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.
Fig. 24
STORAGE
• Never store a fueled unit where fumes may reach an open 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.
LONG TERM STORAGE
If planning on storing the unit for an extended time, use the following storage
procedure:
1. Drain all fuel from the fuel tank into a container with the same 2-cycle
fuel mixture. Do not use fuel that has been stored for more than 30 days.
Dispose of the old fuel/oil mix in accordance to Federal, State and Local
regulations.
2. Start the engine and allow it to run until it stalls. This ensures that all fuel
has been drained from the carburetor.
3. Allow the engine to cool. Remove the spark plug and put 3 - 5 drops of
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.
NOTE: Remove the spark plug and drain all of the oil from the cylinder
4. Thoroughly clean the unit and inspect it for any loose or damaged parts.
START FEATURES
This unit can be started with an optional Plug-In
Power Start or Power Bit Start, (items may be sold
PLUG-IN POWER START AND POWER BIT _I[_H _ /1 _
separately). If choosing to start the unit using one of
these features or have questions, please contact your
for more information and purchasing. You may also
local Craftsman retailer or call 1-800-4-MY-HOME® _C%J__
go to www.craftsman.com.
ITEM NO. DESCRIPTION
316.85951 ........................................................................ Plug-In Power Start
316.85952 ............................................................................... Power Bit Start
before attempting to start the unit after storage.
Repair or replace damaged parts and tighten loose screws, nuts or bolts.
The unit is ready for storage.
Electric Start Feature
Loading...