Craftsman INCREDI.PULL 316.794000 User manual

Operator's Manual
R
_P R 8 FE S S ! 8 N A IL
2-Cycle
BACKPACK BLOWER
Model No. 316.794000
INCREDI.PULL "
UNBELIEVABLE STARTING EA S E TM
•SAFETY
• ASSEMBLY
• OPERATION
• MAINTENANCE
• PARTS LIST
• ESPANOL, P. 13
CAUTION: Before using
this product, read this
manual and follow all
safety rules and operating
instructions.
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
Visit our website: www.craftsman.com
769-05932 P00 05/10

TABLE OF CONTENTS
Rules for Safe Operation ................................................ 2
Warranty ............................................................. 4
Know Your Unit ....................................................... 4
Assembly Instructions .................................................. 5
Oil and Fuel Information ................................................. 6
Starting/Stopping Instructions ............................................ 6
Operating Instructions .................................................. 7
Maintenance and Repair Instructions ...................................... 8
Cleaning and Storage .................................................. 9
Troubleshooting ...................................................... 1O
Specifications ....................................................... 11
Parts List ........................................................... 25
Service Information ............................................ 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 Sears or other qualified service dealer to install the
Accessory Part #753-06418 Muffler Assembly
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.
purpose of safety symbols is to attract your attention to possible dangers. The safety I
The
symbols, and their explanations, deserve your careful attention and understanding. The I
safety warnings do not by themselves eliminate any danger. The instructions or warnings
they g ve are not subst tutes for proper acc dent prevent on 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 maintenance
of the equipment.
I _IIL I DANG ER: 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.
I _hb, I WARNING: Failure to obey a safety warning can result in injury to
yourself and others. Always follow the safety precautions to reduce the risk
of fire, electric shock and personal injury.
I _L, I CAUTION: Failure to obey a safety warning may result in property
damage or personal injury to yourself or to others. Always follow the safety
precautions to reduce the risk of fire, electric shock and personal injury.
NOTE: This Unit Can Use a Plug-In Power Start or Power Bit Start Optional
Accessory!
Please refer to the Plug-in Power Start or Power Bit Start operator's manual for
proper use of these features. (Items Sold Separately! Please refer to page 9 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. FOR
QUESTIONS, CALL 1-8OO-4-MY-HOME®
All information, illustrations, and specifications in this manual are based on the latest
product information available at the time of printing. We reserve the right to make changes
at any time without notice.
"IMPORTANT SAFETY INSTRUCTIONS "
READ ALL INSTRUCTIONS BEFORE OPERATING
I_, I WARNING: When using the unit, you must follow the safety rules. Please I
Iread these instructions before operating the unit in order to ensure the safety of Ithe operator and any bystanders. Please keep these instructions for later use.
• Read the instructions carefully. Be familiar with the controls and proper use of the unit.
• Read this operating instruction manual carefully. Be thoroughly familiar with the
controls and the proper use of the equipment. Know how to stop the unit and
disengage the controls quickly.
• Do net operate this unit when tired, ill, or under the influence of alcohol, drugs, or
medication.
• Never allow children to operate the equipment. Never allow adults unfamiliar with the
instructions to use the unit. Never allow adults to operate the equipment without
proper instruction.
• All blower tubes must be installed properly before operating the unit.
SAFETY WARNINGS FOR GAS UNITS
I,_ I WARNING: Gas°line is highly flammable, and its vap°rs can expl°de if I
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. Always loosen the fuel tank cap
slowly to relieve any pressure in the tank before fueling. Do net smoke.
• Always mix and add fuel in a clean, well-ventilated outdoor area where there are no
sparks or flames. De not smoke.
• Never 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 engine. Move the unit at least 30 feet (9.1 m)
from the fueling source and site before starting the engine. Do net smoke.
• Never start or run the unit inside a closed room or building. Breathing exhaust fumes
can kill. Only operate this unit in a well-ventilated outdoor area.
WHILE OPERATING
• Wear safety glasses or goggles that are marked as meeting ANSI Z87.1-198g standards
and are marked as such. Wear ear/hearing protection when operating this unit.
• Never run the unit without the proper equipment attached.
• To reduce the risk of hearing loss associated with sound level(s), always wear
ear/hearing protection when operating this unit.
• Wear heaWlong 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.
• To avoid static electricity shock, do not wear rubber gloves or any other insulated
gloves while operating this unit.
• Use the unit only in daylight or good artificial light.
• Keep outside surfaces free from oil and fuel.
• 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 set unit on any surface except a clean, hard area while engine is running.
Debris such as gravel, sand, dust, grass, etc. could be picked up by the air intake
and thrown out by the discharge opening, damaging unit, property, or causing
serious injury to bystanders or operator.
• Use the right tool. Only use this tool for its intended purpose.
• Do not force unit. It will 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.
• Always hold the unit with a firm grip when operating.
• Keep hands, face, and feet away from all moving parts. Do not touch or try to stop
the impeller when it is rotating. Do not operate without guards in place.
• Do not put any object into openings. Do not use with any opening blocked; keep free
of dirt, debris, and anything that may reduce the air flow.
• Do not touch the engine or muffler. These parts get extremely hot from operation,
even after the unit is turned off.
• Do not operate the engine faster than the speed needed to do the job. Do not run
the engine at high speed when not in use.
• Always stop the engine when operation is delayed or when walking from one location
to another.
• Stop the engine for maintenance, repair, to install or remove the blower tubes. The
unit must be stopped and the impeller no longer turning to avoid contact with the
rotating blades.
2

•If you strike or come into contact with a foreign object, stop the engine immediately
and check for damage. Do not operate before repairing damage. Do not operate the
unit with loose or damaged parts.
• Use only replacement parts or accessories recommended for this tool that are
distributed by Sears or a Craftsman outlet. Use of any replacement parts purchased
elsewhere may be hazardous, and will also void your warranty.
• Never use this unit for spreading chemicals, fertilizers or other substances which
may contain toxic materials.
• To reduce fire hazard, replace faulty muffler and spark arrestor. Keep the engine and
muffler free from grass, leaves, excessive grease or carbon build up.
• Turn the engine off and disconnect the spark plug for maintenance or repair.
• Never point the blower or blowing debris in the direction of people, animals, or in
the direction of windows. Always direct the blowing debris away from people,
animals, and windows. Use extra caution when blowing debris near solid objects
such as trees, automobiles, walls, etc.
OTHER SAFETY WARNINGS
• Always disconnect the spark plug before performing maintenance or accessing
movable parts. See Replacing the Spark Plug.
• 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.).
• Allow the engine to cool before storing or transporting. Be sure to secure the unit
while transporting.
• 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.
• 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.
• Keep these instructions. Refer to them often and use them to instruct other users. If
you loan this unit to others, also loan these instructions to them.
SAVE THESE INSTRUCTIONS
,, SAFETY AND 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, maintenance," and repair information.
SYMBOL MEANING
Indicates danger, warning or caution. May be used in conjunction
with other symbols or pictographe.
O• READ OPERATOR'S MANUAL
WARNING: Read the operator's manual(s) and follow all warnings
and safety instructions. Failure to do so can result in serious in ury to
the operator and/or bystanders.
__j • WEAR EYE AND HEARING PROTECTION
LWARNING: Thrown objects and loud noise can cause severe eye
injury and hearing loss. Wear eye protection meeting ANSI Z87.1-1989
m standards and ear protection when operating this unit. Use a full face
IF " shield when needed.
_1_ _L_ •UNLEADED FUEL
Always use clean, fresh unleaded fuel
-
•OIL
Refer to operator's manual for the proper type of oil.
,_ •DO NOT USE E85 FUEL IN TH S UNIT
WARN ING: It has been proven that fuel containing greater than
15% ethanol will likely damage this engine and void the warranty.
I• ON/OFF STOP CONTROL
I ON /START/RUN
SYMBOL
i¸
ill ii_ i _
12 3
H N
. .i oiti;5<
MEANING
• PRIMERBULB
Push primer bulb; fully and Slowly, i0 times. ...........................
•CHOKE CONTROL
1. ' FULL choke position
2, *PARTIAL choke position
3. • RUN choke position
• THROWN OBJECTS CAN CAUSE SEVERE INJURY
WARNING: Small Objects can be propelled at high Speed,
Causing injury,
•KEEP BYSTANDERS AWAY
WARN ING: Keep all bystanders, especially children and pets, at
least 50 feet (!5 m) from the Operating area.
_ • HOTSURFACE
._._ WARNING: Do not touch a hot engine. These parts get extremely
hot from operation and may cause severe burns. When the unit is
"_,,. f turned °ff the engine will remain h°t f°r a sh°rt time"
I
•BLOWERS -ROTATING IMPELLER BLADES CAN CAUSE
SEVERE INJURY
WARNING: Stop the engine and allow the impeller to Stop before
opening the vacuum door, installing Or changing tubes or bag, or
before cleaning or performing any maintenance.

CRAFTSMANPROFESSIONAL 3 YEAR FULL WARRANTY
FOR 3 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 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 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
Starter Rope Handle
Suspension System
Shoulder Support
Fuel Cap
Air Filter Cover
Shoulder Su
Buckle
On/Off Switch
Cruise Control
Throttle Cables
Throttle Grip
Flex Tube
Spark Plug
Flare Nozzle
Trigger Choke Lever
Lower
Blower Tube
Nozzle Stand Power Start
Fuel Tank Feature
Primer Bulb
Muffler
4

ASSEMBLING THE BLOWER TUBE
iAiw.°...O; oavoi ,e,iou e,sona,,n,u n a a etothe ni,,I
shut the unit off before removing or installing the blower tubes.
Installing the Flex Tube
1. Place a hose clamp over the end
of the flex tube (Fig. 1).
2. Slide the end of the flex tube with
the clamp on it over the elbow
tube and tighten the screw on the
hose clamp (Fig. 1).
Installing the Upper Blower Tube
1. Place a hose clamp over the
other end of the flex tube (Fig. 2).
2. Slide the end of the hose with the
clamp on it over the top end of
the upper blower tube and
tighten the screw on the hose
clamp (Fig. 2).
Installing the Lower Blower Tube and
Nozzle
1. Insert the bump on the upper
blower tube into the bump slot
on the lower blower tube (Fig. 3).
2. While holding the upper blower
tube, twist the lower blower tube
clockwise until it locks into place
(Fig. 3).
3. Insert the bump on the lower
blower tube into the bump slot
on the nozzle (Fig. 4).
4. While holding the lower blower
tube, twist the nozzle clockwise
until it locks into place (Fig. 4).
The completed blower tube should
look like Figure 7.
Fig, 1
Flex (_
L
ower Tube _
Fig, 2
_/, Upper
Blower Tube
Blower Tube
Fig, 3
Lower
I1_ BI .... Tube
_Nozzle
Fig, 4
tubes are locked in place or firmly installed.
Secure the Throttle Cables
Place a zip tie around the elbow tube
and the throttle cables, as shown (Fig. 5).
Tighten the zip tie, making sure not to
crimp the cables.
Cables _/_...--_ Elbow
Zip Tie
Fig, 5
Adjusting the Throttle Grip
1. Move the throttle grip to a location
on the upper blower tube that
provides the best grip (Fig. 6).
2. Using a T-20 Torx®screwdriver,
tighten the two screws at the
bottom of the throttle grip (Fig. 6).
Throttle Cables
Upper Blower Tube.
Throttle Grip
Lower
Blower Tube
Nozzle
Upper
Blower
Tube
-i Throttle
Grip
T-20 Torx®Screw
Fig, 6
Flex Tube
On/Off Switch
Fig, 7

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
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 you choose to use a blended fuel, or its use is unavoidable, follow recommended
precautions:
• Always use the fresh fuel mix explained in your 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
I_I1_ I CAUTION: For proper engine operation and maximum reliability, pay I
Istrict attention to the oil and fuel mixing instructions on the 2-cycle oil I
container. Using improperly mixed fuel can severely damage the engine.
The bottle of 2-cycle oil that came with your unit contains a fuel additive which will help
inhibit corrosion and minimize the formation of gum deposits. It is recommended that
you use our 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.
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 unleaded gasoline 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.
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
i i I
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.
I_IWARNING: Add fuel in a clean, well ventilated outdoor area. Wipe uP any I
spilled fuel immediately. Avoid creating a source of ignition for spilt fuel. Do
not start the engine until fuel vapors dissipate.
FUELING THE UNIT
I_ I WARNING: Remove fuel cap slowly to avoid injury from fuel spray.
INever operate the unit without the fuel cap securely in place.
1. Remove the fuel cap. Gas Can Spout
2. Place the gas container's spout
into the fill hole on the fuel tank
(Fig. 8) and fill the tank.
NOTE: Do not overfill the tank.
3. Wipe up any fuel 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. FuelTank
NOTE: Dispose of any old fuel
mixture in accordance to Fig.8
federal, state and local
regulations.
I
WARNING: Operate this unit only in a well- ventilated outdoor area.
Carbon monoxide exhaust fumes can be lethal in a confined area.
WARNING: Avoid accidental starting. Make sure you are in the starting
position when pulling the starter rope (Fig. 11). To avoid serious injury, the
operator and unit must be in a stable position while starting.
To avoid serious personal injury, make sure that the blower tube is locked in
place or firmly installed.
NOTE: The unit uses the Incredi-Pull TM starting system, which significantly reduces the
effort required to start the engine. You must pull the starter rope out far enough
to hear the engine attempt to start. There is no need to pull the rope briskly--
there is no harsh resistance when pulling. Be aware that this starting method is
vastly different from (and much easier than) what you may be used to.
STARTING INSTRUCTIONS
1. Mix fuel with oil. See Oil and Fuel
Mixing Instructions.
2. Fill the fuel tank with fresh 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. 9).
3. Slowly press and release the
primer bulb 10 times. Some
amount of fuel should be visible
in the primer bulb (Fig. 10). If fuel
cannot be seen in the bulb,
press and release the bulb until J I
fuel is visible.
4. Move the choke lever to Position 1
(Fig. 10).
5. Press down the cruise control to
lock the trigger into the FAST
position (Fig. 9).
6. Crouch in the starting position
(Fig. 11). Pull the starter rope 5
times in a controlled motion.
7. Move the choke lever to Position 2
(Fig. 10).
8. Pull the starter rope 3-5 times in
a controlled motion to start the
engine.
9. While continuing to keep the
throttle trigger in the FAST
position, allow the engine to
warm up for 30 to 60 seconds.
10. While continuing to keep the
throttle trigger in the FAST
position, move the choke lever to
Position 3and continue warming
the unit for an additional 60
seconds (Fig. 10). The unit may
be used during this time.
NOTE: The cruise control may be
released and the throttle
control used normally once
Cruise
Control- °_W On/OffSwitch
Trigger in the_!_ _
rul_
Fig,9
Fig, 10
Fig, 1t
the engine has been properly warmed.
NOTE: The unit is properly warmed up when the engine accelerates without hesitation.
IF... the engine hesitates, return the choke lever to Position 2 (Fig. 10) and
continue the warm-up.
IF... the engine does not start, go back to step 3.
IF... the engine fails to start after two attempts, move the choke lever to Position
3 (Fig. 10) and press down the cruise control. Pull the starter rope in a
controlled motion 3-8 times. The engine should start. If not, repeat.
IF WARM,.. If the engine is already warm, start the unit with the choke lever in Position
2 (Fig. 10). After the unit starts, move the choke lever to Position 3 (Fig. 10).
Using the Cruise Control
1. Once the engine has started and warmed up, squeeze the trigger to accelerate
the unit as needed (Fig. 9).
2. For longer periods of operation and to eliminate possible finger fatigue, move the
cruise control toward the FAST position to incrementally increase or maintain the
unit's engine speed (Fig. 9). When the cruise control is pressed, the trigger will
recede into the handle.
3. To decrease engine speed, move the cruise control to the SLOW position and the
trigger will return to idle position (Fig. 9).
STOPPING INSTRUCTIONS
1. Release the trigger or move the cruise control to the SLOW position 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 engine
comes to a complete stop (Fig. 9).
6

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 optional
accessory!
Please refer to the Plug-in Power Start or Power Bit Start operator's manual
for proper use of this feature. (Items Sold Separately? Please refer to page 9
of this manual about purchasing these accessories.)
STARTING INSTRUCTIONS
1. Mix fuel with oil. See Oil and Fuel Mixing Instructions.
2. Fill the fuel tank with fresh 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. 9).
3. Slowly press and release the primer bulb 10 times. Some amount of fuel should
be visible in the primer bulb (Fig. 10). If fuel can not be seen in the bulb, press and
release the bulb until fuel is visible.
4. Move the choke lever to Position 1 (Fig. 10).
5. Press down the cruise control to lock the trigger into the FAST position (Fig. 9).
6. Crouch in the starting position (Fig. 11). 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.
7. Press and hold the ON (I) button of the Plug-in Power Start or Power Bit Start
equipped drill for 2 seconds.
8. Move the choke lever to Position 2 (Fig. 10).
9. Press and hold the ON (I) button of the Plug-in Power Start or Power Bit Start
equipped drill in intervals no longer than 2 seconds each until the unit starts.
10. Remove the Plug-In Power Start or drill from the unit.
11. While continuing to keep the throttle trigger in the FAST position, allow the engine
to warm up for 30 to 60 seconds.
12. While continuing to keep the throttle trigger in the FAST position, move the choke
lever to Position 3 and continue warming the unit for an additional 60 seconds
(Fig. 10). The unit may be used during this time.
NOTE: The cruise control may be released and the throttle control used normally
once the engine has been properly warmed.
NOTE: The unit is properly warmed up when the engine accelerates without hesitation.
IF... the engine hesitates, return the choke lever to Position 2 (Fig. 10) and continue
the warm-up.
IF... the engine does not start, go back to step 3.
IF... the engine fails to start after two attempts, move the choke lever to Position 3
(Fig. 10) and press down the cruise control. Then press and hold the Plug-in
Power Start or drill ON (I) button in intervals no longer than 2 seconds each
until the unit starts.
IF WARM... If the engine is already warm, start the unit with the choke lever in Position 2
(Fig. 10). After the unit starts, move the choke lever to Position 3 (Fig. 10).
Using the Cruise Control
1. Once the engine has started and warmed up, squeeze the trigger to accelerate
the unit as needed (Fig. 9).
2. For longer periods of operation and to eliminate possible finger fatigue, move the
cruise control toward the FAST position to incrementally increase or maintain the
unit's engine speed (Fig. 9). When the cruise control is pressed, the trigger will
recede into the handle.
3. To decrease engine speed, move the cruise control to the SLOW position and the
trigger will return to idle position (Fig. 9).
STOPPING INSTRUCTIONS
1. Release the trigger or move the cruise control to the SLOW position 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 engine
comes to a complete stop (Fig. 9).
PUTTING ON THE UNIT
1. Place the shoulder supports over
the shoulders so that the engine
rests on the operator's back.
2. Pull the shoulder support straps
down to tighten the shoulder
supports (Fig. 12).
NOTE: The unit must be started
prior to putting it on. See
Starting/Stopping
Instructions.
TAKING OFF THE UNIT
1. Pull up on the bottom tabs of the
shoulder support buckles to
loosen the shoulder supports
(Fig. 13).
2. Remove the unit.
HOLDING THE BLOWER
Shoulder
Support
Straps
Shoulder
Supports
Fig, 12
Shoulder
Support
Buckles
Fig, 13
I_ I WARNING: To avoid serious personal injury, wear eye and hearing
Iprotection at all times when operating this unit. Wear a dust mask in dusty
locations.
Before operating the unit, stand in the
operating position (Fig. 14). Check for
the following: I
• The operator is wearing eye and
hearing protection.
• The operator is wearing proper
clothing.
• If the conditions are dusty, the
operator is wearing a dust mask.
• The unit is secure and comfortable
on the operator's back.
• The right arm is bent and the right
hand is gripping the throttle grip.
L.
Fig.14
OPERATING TIPS
I_ I WARNING: To prevent serious personal injury or damage to the unit,
Imake sure the blower tubes are in place before operating the unit.
• Never direct the unit at anyone while the unit is in operation.
• Always hold the unit securely when operating.
• To reduce the risk of hearing loss associated with sound level(s), hearing protection
is required.
• Operate power equipment only at reasonable hours-- not early in the morning or late
at night when people might be disturbed. Comply with times listed in local ordinances.
Usual recommendations are 9:00 am to 5:00 pm, Monday through Saturday.
• To reduce noise levels, operate power blowers at the lowest possible speed to de the
job and limit the total number of pieces of power equipment used at any one time.
• Check your equipment before operation, especially the muffler, air intakes and air filters.
• Use rakes and brooms to loosen debris before blowing.
• In dusty conditions, slightly dampen surfaces.
• Conserve water by using power blowers instead of hoses for many lawn and garden
applications, including cleaning debris from areas such as screens, patios, grills,
porches, and gardens.
• Watch out for children, pets, open windows or freshly washed cars, and blow debris
safely away.
• Use the full blower nozzle extension so the air stream can work closer to the ground.
• Clean up after using blowers and other equipment. Dispose of debris appropriately.
• Use the cruise control (Fig. 9) to keep the trigger depressed while operating to make
continuous operation easier.
APPLICATIONS
1 Use the blower for trees, shrubs, flower beds and hard-to-clean areas.
2. Use the unit around buildings and for other normal cleaning procedures.
3. Use the blower around walls, overhangs, fences and screens.

WARNING: To prevent serious injury, never perform maintenance or I
repairs with unit running. Always service and repair a cool unit. Disconnect I
the spark plug wire to ensure that the unit cannot start. See Replacing the
Spark Plug.
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. If you are
unsure about these procedures, take your unit to a Sears or other qualified
service dealer.
NOTE: Maintenance, replacement, or repair of the emission control devices and
system should only be performed by a Sears or other qualified service dealer.
FREQUENCY MAINTENANCE REQUIRED SEE
Before starting the Fill the fuel tank with fresh fuel p 6
engine
Every 10 hours Clean and re-oil the air filter p 8
Every 25 hours Check the spark plug condition and gap p 9
AIR FILTER MAINTENANCE
Cleaning the Air Filter _-_
Clean and re-oil the air filter per the
Maintenance Schedule. ]t is an
important item to maintain. Failure to
maintain your air filter properly can
result in poor performance or can cause
permanent damage to your engine.
1. To open the air filter cover, push __
the locking tab on the right side
of the cover inward, then pull the
air filter cover out and to the left
(Fg. 15).
2. Remove the air filter (Fig. 16).
3. Wash the filter in detergent and
water (Fig. 17). Rinse the filter
thoroughly and allow it to dry.
4. Apply enough clean SAE 30
motor oil to lightly coat the filter
(Fig. 18).
5. Squeeze the filter to spread and
remove excess oil (Fig. 19).
6. Replace the filter (Fig. 16).
NOTE: If the unit is operated
without the air filter, you will
VOID the warranty.
7. Reinstall the air filter cover.
Position the slots on the left side
of the air filter cover onto the
tabs on the right side of the back
plate (Figs. 16).
8. Swing the cover to the right until
the tab on the air filter back plate
snaps into place in the slot on
the air filter cover (Fig. 20).
Air Filter
Cover
Locking
Tab
Fig, 15
Tabs
Fig, 16
Locking
Tab
Fig, 17
Fig, 19
Air Filter
Cover
Tab
Fig, 20
CARBURETOR ADJUSTMENT
The idle speed of the engine is adjustable. An idle adjustment screw is between the air
filter cover and the engine cover (Fig. 21).
NOTE: Careless adjustments can seriously damage your unit. An authorized service
dealer should make carburetor adjustments.
Check Fuel
Old and/or improperly mixed fuel is usually the reason for improper unit performance.
Drain and refill the tank with fresh, properly-mixed fuel prior to making any adjustments.
Refer to Oil and Fuel Information.
Clean Air Filter
The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict
air flow. This is often mistaken for an out of adjustment carburetor. Check the condition of the
air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance.
Adjust Idle Speed Screw
If, after checking the fuel and cleaning
the air filter, the engine still will not idle,
adjust the idle speed screw as follows:
1. Start the engine and let it run at a_
high idle for a minute to warm
up. Refer to Starting/Stopping
Instructions.
2. Move the cruise control to the
SLOW position and let the engine
idle. If the engine stops, insert a
small Phillips screwdriver in
between the air filter cover and
the engine cover (Fig. 21). Turn
the idle speed screw in,
clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.
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:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
Have the carburetor adjusted by a Sears or other qualified dealer.
///I// Adjulsleent
_-_ _ Screw
Fig, 2t
Fig, 18
8

REPLACING THE SPARK PLUG
Use a Champion #RDJ7J or a
replacement part #753-06193 spark
plug. The correct air gap is 0.025 in.
(0.635 mm). Remove the plug and
check its condition per the
Maintenance Schedule.
1. Stop the engine and allow it to
cool.
2. Grasp the plug wire firmly and
pull the cap from the spark plug.
3. Clean dirt from around the spark
plug. Remove the spark plug
from the cylinder head by turning
a 5/8 in. socket counterclockwise.
0,025 in.
(0,635 mm.)
Fig. 22
J_JWARNING: Do not sand blast, scrape or clean electrodes. Grit in theJenginecould damage the cylinder.
4. Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.635 mm)
using a feeler gauge (Fig. 22).
5. Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8 in. socket
clockwise until snug.
If using a torque wrench torque to:
110-120 in.,Ib. (12.3-13.5 N,m}
Do not overtighten.
6. Reconnect the spark plug wire and engine cover.
CLEANING
I _b I WARNING: To avoid serious personal injury, always turn your unit off I
and allow it to cool before you clean or service it.
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
•Never store the unit with fuel in the tank where fumes may reach an open flame or spark.
• Allow the engine to cool before storing.
• Lock up the unit 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 you plan 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 1 oz. (30 ml) 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 before
attempting to start the blower after storage.
4. Thoroughly clean the unit and inspect it for any loose or damaged parts. Repair
or replace damaged parts and tighten loose screws, nuts or bolts. The unit is
ready for storage.
TRANSPORTING
• Allow the engine to cool before transporting
• Drain fuel from unit before transporting
• Tighten fuel cap before transporting
• Secure the unit while transporting
PLUG-IN POWER START AND POWER BIT START FEATURES
This unit can be started with an optional Plug-In Power Start or Power Bit Start (items
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

PROBLEM
Empty fuel tank
Old or improperly mixed fuel
Plugged spark arrestor
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Air filter is plugged
Improper carburetor adjustment
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Old or improperly mixed fuel
Plugged spark arrestor
Old or improperly mixed fuel
Plugged spark arrestor
SOLUTION
Fill fuel tank with properly mixed fuel
Drain fuel tank and add fresh fuel mixture
Take to a Sears or other qualified service dealer
Clean or replace the air filter
Adjust according to the CarburetorAdjuetment section or take to a Sears or other
qualified service dealer for an adjustment
Drain fuel tank and add fresh fuel mixture
Take to a Sears or other qualified service dealer
Drain fuel tank and add fresh fuel mixture
Take to a Sears or other qualified service dealer
NEED MORE HELP
10