Snapper 7800959-00 Operator's Manual
769-09211 / 01 11/13
Operator’s Manual
2-Cycle Backpack Blower
7800959-00
TABLE OF CONTENTS
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Oil and Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Starting and Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
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.
Please do NOT return the machine to the retailer or dealer
without first contacting the Customer Support Department.
If you have difficulty assembling this product or have any questions
regarding the controls, operation, or maintenance of this machine,
you can seek help from the experts. Choose from the options below:
• Visit us on the web at www.snapper.com
• Call a Customer Support Represenative at (800) 317-7833
• Write to Briggs & Stratton Power Products Group, LLC • 12301
West Wirth St. • Wauwatosa • WI 53222
SAVE THESE INSTRUCTIONS
SERVICE
IMPORTANT: Read this manual thoroughly before using this product. Follow all instructions.
Briggs & Stratton Power Products Group, LLC • 12301 West Wirth St. • Wauwatosa • WI 53222
SAFETY
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, contact your local service dealer to install the
appropriate muffler assembly.
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.
SYMBOL MEANING
The purpose of safety symbols is to attract your attention to
possible 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.
NOTE: Advises you of information or instructions vital to the
operation or maintenance of the equipment.
CALIFORNIA PROPOSITION 65
WARNING:Engine exhaust, some of its
constituents and certain finished components contain or
emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Wash
hands after handling.
2
WARNING:
Signals a SERIOUS hazard.
Failure to obey a safety WARNING signal CAN result in
serious injury to yourself or to others.
CAUTION:Signals a MODERATE hazard.
Failure to obey a safety CAUTION signal MAY result in
property damage or injury to yourself or to others.
DANGER:
Signals an EXTREME hazard.
Failure to obey a safety DANGER signal WILL result in
serious injury or death to yourself or to others.
READ ALL INSTRUCTIONS BEFORE OPERATING
• Read the instructions carefully. Be familiar with the controls and
proper use of the unit.
• Do not operate this unit when tired, ill or under the influence of
alcohol, drugs or medication.
• Children must not operate the unit. Teens must be accompanied
and guided by an adult.
• All guards and safety attachments must be installed properly
before operating the unit.
• Inspect the unit before use. Replace damaged parts. Check for
fuel leaks. Make sure all fasteners are in place and secure.
Replace parts that are cracked, chipped, or damaged in any
way. Do not operate the unit with loose or damaged parts.
• Be aware of risk of injury to the head, hands and feet.
• Carefully inspect the area before starting the unit. Remove
rocks, broken glass, nails, wire, string and other objects that
may be thrown or become entangled with the unit.
• 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 you are approached, stop the unit immediately.
• Squeeze the throttle control and check that it returns
automatically to the idle position. Make all adjustments or
repairs before using the unit.
WHILE OPERATING
• Wear safety glasses or goggles that meet current ANSI Z87.1
standards and are marked as such. Wear ear/hearing protection
when operating this unit. Wear a face mask 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.
• Adjust the handle to provide the best grip.
• Use the unit only in daylight or good artificial light.
• 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 and Stopping.
• Use the right tool. Only use this tool for its intended purpose.
• Always keep a firm grip on the handle when operating the unit.
• Do not overreach. Always keep proper footing and balance. Take
extra care when working on steep slopes or inclines.
• Keep hands, face, and feet away from all moving parts. Do not
touch or try to stop moving parts.
• Do not touch the engine, gear housing or muffler. These parts get
extremely hot from operation, even after the unit is turned off.
• 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.
• Do not force the unit. It will do a better, safer job when used at
the intended rate.
• Always stop the unit when operation is delayed or when walking
from one location to another.
• If you strike or become entangled with a foreign object, stop the
unit immediately and check for damage. Do not operate the unit
before repairing damage. Do not operate the unit with loose or
damaged parts.
• Turn the engine to off and disconnect the spark plug for
maintenance or repair.
• Use only original equipment manufacturer (OEM) replacement
parts and accessories for this unit. These are available from your
authorized service dealer. Use of any other parts or accessories
could lead to serious injury to the user, or damage to the unit,
and void the warranty.
• Keep the unit clean. Carefully remove vegetation and other
debris that could block moving parts.
• 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.
• If the unit starts to vibrate abnormally, stop the unit immediately.
Inspect the unit for the cause of the vibration. Vibration is
generally an indicator of trouble.
SAFETY WARNINGS FOR GAS UNITS
• 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
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.
• Always mix and add fuel in a clean, well-ventilated outdoor area
where there are no sparks or flames. DO 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 unit.
Move the unit at least 30 ft. (9.1 m) from the fueling source and
site before starting the engine. DO NOT smoke.
• Never start or run the unit inside a closed room or building.
Breathing exhaust fumes can kill. Operate this unit only in a well
ventilated outdoor area.
• IMPORTANT SAFETY INSTRUCTIONS •
WARNING:When using the unit, all safety
rules must be followed. Please read these instructions
before operating the unit in order to ensure the safety of
the operator and any bystanders. Please keep these
instructions for later use.
WARNING:Gasoline is highly flammable and
its vapors can explode if ignited. Take the following
precautions:
3
BLOWER SAFETY
• Do not insert anything into the air openings, blower tubes or
nozzle. Do not operate the unit if any of the air openings or
tubes are blocked. Keep the air openings free from dust, lint,
hair and anything else that may reduce airflow.
• Do not operate the unit without the blower tubes attached.
• Do not use the unit to spray liquids, especially flammable or
combustible liquids, such as gasoline. Do not use the unit in
areas where such liquids are present.
• Do not use the unit for spreading chemicals, fertilizer or any
other substance that may contain toxic materials.
4
OTHER SAFETY WARNINGS
• All service, other than the maintenance procedures described in
this manual, should be performed by a qualified service dealer.
• Before inspecting, servicing, cleaning, storing, transporting or
replacing any parts on the unit:
1. Stop the unit.
2. Make sure all moving parts have stopped.
3. Allow the unit to cool.
4. Disconnect the spark plug wire.
• Secure the unit while transporting.
• 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.).
• Store the unit in a dry place, secured or at a height to prevent
unauthorized use or damage. Keep the unit 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 the unit
after each use. Refer to Cleaning and Storage.
• Keep these instructions. Refer to them often and use them to
instruct other users. If you loan this unit to others, also loan
them these instructions.
SAVE THESE INSTRUCTIONS
• Do not set the unit down on any surface while the unit is
running. Debris can be picked up by the air intake and thrown
out the discharge opening, resulting in damage to the unit or
property or causing serious injury to bystanders or the operator.
• During operation, never point the unit in the direction of people,
animals, windows or automobiles. Always direct blowing debris
away from people, animals, windows or automobiles.
• Use extra caution when blowing debris near solid objects, such
trees, walls, fences, etc. When possible, blow away from such
objects, not toward them.
• Take care when working near valuable plants. The force of the
blown air could damage tender plants.
• 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
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used in
conjunction with other symbols or pictographs.
• 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
injury to the operator and/or bystanders.
• WEAR EYE AND HEARING PROTECTION
WARNING:
Thrown objects and loud
noise can cause severe eye injury and hearing loss.
Wear eye protection meeting current ANSI Z87.1
standards and ear protection when operating this unit.
Use a full face shield when needed.
• 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 THIS UNIT
WARNING:
It has been proven that fuel
containing greater than 10% ethanol will likely
damage this engine and void the warranty.
• ON/OFF STOP CONTROL
ON / START / RUN
• ON/OFF STOP CONTROL
OFF or STOP
• PRIMER BULB
Push primer bulb, fully and slowly, 10 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
WARNING:Keep all bystanders,
especially children and pets, at least 50 feet (15 m)
from the operating area.
• HOT SURFACE
WARNING:
Do not touch a hot muffler
or cylinder. You may get burned. These parts get
extremely hot from operation. When turned off they
remain hot for a short time.
• BLOWERS – ROTATING IMPELLER BLADES CAN
CAUSE SEVERE INJURY
WARNING:
Stop the engine and allow
the impeller to stop before changing tubes, cleaning
or performing any maintenance.
5
Fuel Cap
Starter
Rope Grip
Throttle Control
Spark Plug
Muffler
On/Off Switch
Primer Bulb
Choke Lever
Air Filter
Cover
Stand
Flex Tube
Upper
Blower Tube
Lower
Blower Tube
Nozzle
Cruise Control
Throttle Grip
Throttle
Cables
Shoulder Support
Buckles
Shoulder
Supports
6
KNOW YOUR UNIT
APPLICATIONS
• Cleaning yards, garages, driveways, porches, patios, around
walls, fences and more
SPECIFICATIONS*
* All specifications 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.
Engine Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 cc (1.64 cu. in.)
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 in. (0.635 mm)
Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion® RDJ7J or equivalent plug
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture
Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40:1
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 oz. (591 ml)
Approximate Unit Weight (No fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 18 lbs. (7.7 - 8.2 kg)
Blower Air Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 445 cfm
Blower Air Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 145 mph
ASSEMBLY TOOLS REQUIRED:
• Flat-head Screwdriver
• T-20 Torx® Screwdriver
ASSEMBLY
7
ASSEMBLING THE BLOWER TUBE
Installing the Flex Tube
1. Place a hose clamp around one end of the flex tube (Fig. 1).
2. Slide the flex tube and hose clamp onto the elbow tube (Fig. 1).
3. Tighten the screw on the hose clamp with a flat-head
screwdriver (Fig. 1).
Installing the Upper Blower Tube
1. Place a hose clamp around the other end of the flex tube (Fig. 2).
2. Slide the flex tube and hose clamp onto the upper end of the
upper blower tube (Fig. 2).
3. Tighten the screw on the hose clamp with a flat-head
screwdriver (Fig. 2).
Installing the Lower Blower Tube
1. Align the bump on the upper blower tube with the bump slot on
the lower blower tube (Fig. 3).
2. Insert the upper blower tube into the lower blower tube (Fig. 3).
3. While holding the upper blower tube, twist the lower blower tube
clockwise until it locks into place (Fig. 3).
Installing the Nozzle
1. Align the bump on the lower blower tube with the bump slot on
the nozzle (Fig. 4).
2. Insert the lower blower tube into the nozzle (Fig. 4).
3. While holding the lower blower tube, twist the nozzle clockwise
until it locks into place (Fig. 4).
Fig. 1
Hose Clamp
Flex Tube
Elbow Tube
Fig. 2
Fig. 3
Upper Blower Tube
Lower Blower Tube
Bump
Bump Slot
Fig. 4
WARNING:
To avoid serious personal injury and
damage to the unit, shut the unit off before removing or
installing blower tubes or nozzles.
Flex Tube
Hose Clamp
Upper Blower Tube
Lower Blower Tube
Bump
Bump Slot
Nozzle
8
Securing the Throttle Cables
1. Wrap a zip tie around the elbow tube and the throttle cables (Fig. 5).
2. Carefully tighten the zip tie. Do not crimp the throttle cables.
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. Tighten the two screws on the throttle grip with a T-20 Torx®
screwdriver until the throttle grip is secure (Fig. 6).
Fig. 5
Throttle Cables
Elbow Tube
Zip Tie
Fig. 6
Upper Blower Tube
Screws
Throttle Grip
Lower Blower Tube
9
OIL AND FUEL
FUELING THE UNIT
1. Position the unit with the fuel cap facing up.
2. Remove the fuel cap.
3. Place the fuel container spout into the fill hole on the fuel tank
and fill the tank.
NOTE: Do not overfill the tank.
4. Wipe up any fuel that may have spilled.
5. Reinstall the fuel cap.
6. Move the unit at least 30 ft. (9.1 m) from the fuel container and
the fueling site before starting the engine.
OIL AND FUEL MIXING INSTRUCTIONS
The use of old and/or improperly mixed fuel is the most common cause
of performance problems. Use only fresh, clean unleaded gasoline.
Follow the instructions carefully for the proper gasoline/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, forming acids when stored. ALWAYS use fresh fuel (less
than 30 days old).
NOTE: Dispose of old fuel according to federal, state and local
regulations.
Using Blended Fuels
If using a blended fuel:
• Always use the fresh fuel mix explained in your operator's manual
• Use Briggs & Stratton Advanced Formula Fuel Treatment and
Stabilizer or an equivalent
• Always agitate the fuel mix before fueling the unit
• Drain the tank and run the engine dry before storing the unit
Using Fuel Additives
The bottle of 2-cycle oil provided with this unit contains a fuel
additive to help inhibit corrosion and minimize gum deposits.
Always use the brand of 2-cycle oil that came with this unit. If this is
unavailable, use a 2-cycle oil designed for air-cooled engines and
mix it with a fuel additive, such as Briggs & Stratton Advanced
Formula Fuel Treatment and 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
NOTE: This unit comes with a 3.2 oz. bottle of 2-cycle oil. To obtain
the correct fuel mixture described below, pour the entire bottle
into one gallon of unleaded gasoline.
Thoroughly mix the proper ratio of unleaded gasoline with 2-cycle
engine oil. Do not mix them directly in the unit’s fuel tank. Use a
separate fuel can. Use a 40:1 gasoline/oil ratio. See the table below
for specific gasoline and oil mixing ratios.
Unleaded gasoline 2-cycle oil
1 gallon U.S.
(3.8 liters)
3.2 fl. oz.
(95 ml)
1 liter 25 ml
MIXING RATIO - 40:1
CAUTION:
For proper engine operation and maximum
reliability, pay strict attention to the gasoline and oil mixing
instructions on the 2-cycle oil bottle. Using improperly
mixed fuel can severely damage the engine.
WARNING:
Gasoline is extremely flammable. Ignited
vapors may explode. Always stop the engine and allow it
to cool before filling the fuel tank. Do not smoke while
filling the tank. Keep sparks and open flames at a distance
from the area.
WARNING:
Remove the 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, 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.
WARNING:
DO NOT USE E85 FUEL IN THIS UNIT. It
has been proven that fuel containing greater than 10%
ethanol will likely damage this engine and void the warranty.
10
STARTING AND STOPPING
WARNING:
Operate this unit only in a well-ventilated
outdoor area. Carbon monoxide exhaust fumes can be
lethal in a confined area.
WARNING:
Avoid accidentally starting the unit. To avoid
serious injury, the operator and the unit must be in a stable
position when pulling the starter rope (Fig. 9).
STARTING INSTRUCTIONS
1. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.
2. Fill the fuel tank. Refer to Fueling the Unit.
NOTE: There is no need to turn the unit on. The On/Off switch is in
the ON ( I ) position at all times (Fig. 7).
3. Slowly press and release the primer bulb 10 times (Fig. 8). If fuel
cannot be seen in the primer bulb, press and release the primer
bulb until fuel is visible.
4. Move the choke lever to Position 1 (Fig. 8).
5. Move the cruise control to the FAST position (Fig. 7).
NOTE: Keep the cruise control in the FAST position for ALL further
steps.
6. Crouch in the starting position (Fig. 9).
7. Pull the starter rope with a controlled and steady motion 5 times
(Fig. 9).
8. Move the choke lever to Position 2 (Fig. 8).
9. Pull the starter rope with a controlled and steady motion 3 to 5
times to start the engine.
10. Allow the engine to warm up for 30 to 60 seconds.
11. Move the choke lever to Position 3 (Fig. 8) and continue
warming the engine for an additional 60 seconds. The unit may
be used during this time.
NOTE: The engine is properly warmed up when it accelerates
without hesitation.
NOTE: Once the engine is properly warmed, the cruise control may
be adjusted and the throttle control can be used normally.
IF... the engine hesitates, return the choke lever to Position 2 (Fig. 8)
and continue the warm-up.
IF... the engine does not start, begin the starting procedure with
step 3.
IF... the engine fails to start after a few attempts, move the choke
lever to Position 3 and move the cruise control to the FAST
position. Pull the starter rope with a controlled and steady
motion 3 to 8 times. The engine should start. If it does not,
repeat this instruction.
IF... the engine is already warm, begin the starting procedure with
step 8.
STOPPING INSTRUCTIONS
1. Release the throttle control, or move the cruise control to the
SLOW position, and allow the engine to idle.
2. Press and hold the On/Off switch in the OFF (O) position until
the engine comes to a complete stop (Fig. 7).
Fig. 7
Fig. 9
On ( I ) / Start
Off (O) / Stop
Throttle Control
Starting
Position
Starter Rope Grip
1
2
3
Fig. 8
Primer Bulb
Position 3Position 2
Position 1
Choke Lever
Cruise Control
SLOW
FAST
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