MTD 41BS2HBC799 Owner’s Manual
Operator's Manual
!::RRFrSMRH
2-Cycle
HANDHELD BLOWER
Model No. 316.791650
_BEUEVAB_E $ TA_ TR _ _ E _ S E
CAUTION: Before using this product,
read this manual and follow all its Safety
Rules and Operating instructions.
\
* SAFETY
* ASSEMBLY
* OPERATION
* MAINTENANCE
. ESPANOL, R 17
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
Visit our website: www.craftsrnan.corn
769-10798 / 00 05/15
TABLEOFCONTENTS
Safety............................................... 2
Warranty............................................. 6
KnowYourUnit........................................ 7
Specifications......................................... 7
Assembly............................................. 8
OilandFuel........................................... 9
StartingandStopping.................................. 10
Operation............................................ 11
Maintenance......................................... 12
CleaningandStorage.................................. 14
Troubleshooting....................................... 15
RepairProtectionAgreements........................... 16
ServiceNumbers.............................. BackCover
Allinformation,illustrationsandspecificationsinthismanualarebased
onthelatestproductinformationavailableatthetimeofprinting.We
reservetherighttomakechangesatanytimewithoutnotice.
©SeamBrands,LLC
Thepurposeofsafetysymbolsistoattractyourattentionto
possibledangers.Thesafetysymbols,andtheirexplanations,
deserveyourcarefulattentionandunderstanding.Thesafety
warningsdonotbythemselveseliminateanydanger.The
instructionsorwarningstheygivearenotsubstitutesforproper
accidentpreventionmeasures.
SYMBOL MEANING
,ml
DANGER"
Failure to obey a safety DANGER symbol WiLL result in
serious injury or death to yourself or to others.
= Signals an EXTREME hazard.
WAR NING: Signals a SERIOUS hazard.
Failure to obey a safety WARNING symbol CAN result in
serious injury to yourself or to others.
Failure to obey a safety CAUTION symbol MAY result in
CAUTION: Signa,saMOOERATEhazard
property damage or injury to yourself or to others.
NOTE: Advises you of information or instructions vital to the
operation or maintenance of the equipment.
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 a Sears Parts & Repair Service Center to
install the appropriate muffler assembly.
WARNING: This product contains a chemical
_ CAUFORNIA PROPOSiTiON 65
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.
known to the state of California to cause cancer, birth defects
or other reproductive harm.
• iMPORTANT SAFETY iNSTRUCTiONS •
READ ALL iNSTRUCTiONS BEFORE OPERATING
WARNING. When using the unit, all safety
instructions 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.
• 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.
Never allow children to operate the unit. Teens must be trained,
accompanied and supervised by an adult. Never allow adults to
operate the unit without proper instruction.
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.
Do not change the engine governor settings or overspeed the
engine.
This unit is intended for occasional, household use only.
SAFETY WARNINGS FOR GAS UNITS
its vapors can explode if ignited. Take the following
WARN ING: Gasoline is highly flammable and
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
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.
m
WHILE OPERATING
Wear safety glasses or goggles that meet current ANSI / ISEA
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.
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 hold the unit with a firm grip when operating.
Do not overreach. Always keep proper footing and balance. Take
extra care when working on stairs, steep slopes or inclines. To avoid
serious injury, do not operate the unit while on a ladder or a roof.
Keep hands, face, and feet away from all moving parts. Do not
touch or try to stop moving parts.
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 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.
Before setting the unit down, always make sure the engine is off
and all moving parts have stopped.
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 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 a
Sears or other qualified 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.
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 tube securely 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.
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
as 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.
Never attempt to clear a clogged air intake opening while the
unit is running.
Keep hair, fingers and all other body parts away from moving
parts and openings.
OTHER SAFETY WARNINGS
Maintain the unit with care.
All service, other than the maintenance procedures described in
this manual, should be performed by a Sears or other qualified
service dealer.
Never remove, modify or make inoperative any safety device
furnished with the unit.
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 and clean (free from debris, oil and grease).
Clean the unit after each use. Refer to Cleaning and Storage. Do
not use solvents or strong detergents.
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
,,,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
Z_ , SAFETY ALERT SYMBOL
Indicates dangeri warning or caution I Used in
. conjunction with other symbols or pictographs,
,,READ OPERATOR'S MANUAL_t"_ki'_|_ | |_ = Read the oPerator's
manual(s) and follow all warnings and safety
instructionsl Failure to do so can result in serious
injury to the operator and/or bystanders.
,WEAREYEANDHEARINGPROTECTION
,_1_, WeAcca nRcauNs!NerVe i--Tq:own
_ iS V yej y e ng i
;_U ,UNLEADEDFUEL
Wear eye pr0tecti0n meeting current ANSI / ISEA
I Z8Z:! standards and ear protection when operating
this unit. Use a full face shield when needed.
AlwaYs UseClean' fresh Unleaded
mOiL i
Refer to 0perators, manual for the proper type Of
j,, 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.
ON / START/RUN
oON/OFF STOP CONTROL
wON/OFF STOP CONTROL
OFF or STOP
N
Push primer bulb, fully and slowly, 10 times.
' PRIMER BULB
• RUN choke position
A "oTHROWN OBJECTS CAN CAUSE SEVERE iNJURY
WARNING: Smaobjectscanbe
. propelled at high speed, causing injury.
min.50_ ,,,KEEP BYSTANDERS AWAY
| _ WARNING. Keepa,,bystanders
15a" especially children and pets, at least 50 feet (15 m) from
. the operating area.
"o HOT SURFACE
WARN _NG, Donottouchahotmu,,er
,,_l)}_t,,,,q,, or cylinder. You may get burned, These parts get
extremely hot from operation. When turned off, they
remain hot for a short time.
B
__ _ ", BLOWERS- ROTATING IMPELLER BLADES CAN
_,_'qt.'_ _ ,A _1_ _,,.,, _,f"__CAUS E S EVERE,NJ U RY
,,,,..,,,,,,,,,,, stoptheunitanda,,owthe
impeller to stop before changing tubes, cleaning or
performing any maintenance. Keep hands and feet
; away from moving parts.
5
CRAFTSMANLiMiTED WARRANTY
FOR TWO YEARS from the date of sale, this product is warranted against defects inmaterial or workmanship.
WITH PROOF OF SALE, a defective product will receive free repair or replacement at option of seller.
For warranty coverage details to obtain free repair or replacement, visit the web page: www.craftsman.com/warranty
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 spark plugs or filters.
• 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
To order parts or schedule service for this product, call 1-888-331-4569.
APPLiCATiONS
= Cleaningyards,garages,driveways,porches,patios,around
walls,fencesandmore
ASSEMBLY TOOLS REQUIRED:
• Flat-head Screwdriver
On/Off Switch
Cruise Control
Muffler
Throttle
Control
Choke Lever
Handle
Spark Plug
Starter
Rope Grip
Nozzle
Air Filter Cover
Primer Bulb
Fuel Cap
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 ...................................................................................... 14 oz. (414 ml)
Approximate Unit Weight (No fuel) .................................................................. 10 - 12 Ibs. (4.5 - 5.4 kg)
Air Volume** (measured at: outlet / blower tube / nozzle) ..................................... 440 / 425 / 310 cfm (12 / 12 / 8 m3/min)
Air Speed (Peak)** (measured at: outlet / blower tube / nozzle) ............................. 120 / 125 / 200 mph (193 / 201 / 322 km/h)
Air Speed (Average)** (measured at: outlet / blower tube / nozzle) ........................... 100 / 105 / 175 mph (161 / 169 / 282 km/h)
* 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.
** Measured per ANSi B175.2.
damage to the unit, shut the unit off before removing or
_ ARNING: To avoid serious personal injury and
installing blower tubes, nozzles, vacuum tubes or the
vacuum bag.
Bumps
Slots Handle
Blower
Outlet
_ WARNING: To prevent serious personal injury, never
operate the unit without the blower tube firmly installed.
iNSTALLiNG THE BLOWER TUBE AND NOZZLE
Always install the blower tube. The nozzle is optional.
Installing the Blower Tube
1. Align the bumps on the upper end of the blower tube with the
slots on the blower outlet (Fig. 1).
2. Insert the blower tube into the blower outlet (Fig. 1).
3. While holding the handle, twist the blower tube clockwise until it
locks into place (Fig. 1).
Installing the Nozzle
1. Align the slots on the nozzle with the bumps on the lower end of
the blower tube (Fig. 2).
2. Install the nozzle onto the blower tube (Fig. 2).
3. While holding the blower tube, twist the nozzle clockwise until it
locks into place (Fig. 2). The tabs on the blower tube should
align with the tabs on the nozzle (Fig. 3).
Blower Tube
Fig. 1
Bum
Slot
Blower Tube
Nozzle
Fig. 2
Tabs
REMOVING THE BLOWER TUBE AND NOZZLE
Removing the Blower Tube
1. Insert a flat-head screwdriver into the tube lock. Turn the
screwdriver counterclockwise 1/4 turn and hold it in place (Fig. 4).
2. Twist the blower tube counterclockwise until it unlocks from the
blower outlet (Fig. 4).
3. Remove the blower tube from the blower outlet.
Removing the Nozzle
1. While holding the blower tube, twist the nozzle counterclockwise
until it unlocks from the blower tube.
2. Remove the nozzle from the blower tube.
Tabs
Fig. 3
Tube Lock
Fig. 4
OiL AND FUEL MiXiNG iNSTRUCTiONS
The use of old and/or improperlymixed 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 the fuel additive STA-BIL® or an equivalent
Always agitate the fuel mix before fueling the unit
has been proven that fuel containing greater than 10%
WARNING: DO NOT USE E85 FUEL IN THIS UNIT. it |
ethanol will likely damage this engine and void the warranty.
Using Fuel Additives
The container of 2-cycle oil provided with this unit includes 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 STA-BIL Fuel 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. (95 ml) container of 2-cycle
oil. To obtain the correct fuel mixture described below, pour the
entire container into one gallon of unleaded gasoline.
FUELING THE UNiT
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.
1. Position the unit with the fuel cap facing up.
2. Slowly remove the fuel cap.
3. Place the fuel container spout into the fuel tank fill hole and fill
the tank.
NOTE: Do not overfill the tank.
4. Wipe up any fuel that may have spilled.
J
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.
CAUTION: For proper engine operation and maximum
reliability, pay strict attention to the gasoline and oil mixing
instructions on the 2-cycle oil container. Using improperly
mixed fuel can severely damage the engine.
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
1 gallon U.S.
(3.8 liters}
1 liter
MiXiNG RATIO =40:1
2=cycle oil
3.2 fL oz.
(95ml)
25 rnl
9
outdoor area. Carbon monoxide exhaust fumes can be
I_lib IWARNING: Operate this unit only in a well-ventilated
lethal in a confined area.
!
Off (O) On (I)
L_ Throttle Control
[__J ARNING: Avoid accidentally starting the unit. To avoid
_ WARNING: When starting the unit, make sure it is not
serious injury, the operator and the unit must be in a stable
position when pulling the starter rope (Fig. 7).
directed toward people, animals, windows, automobiles or
loose debris.
STARTING iNSTRUCTiONS
NOTE: This unit uses the INCREDI-PULL TM starting system, which
significantly reduces the effort required to start the engine.
NOTE: This unit includes a cruise control, which allows the operator
to maintain the desired engine speed without having to squeeze
the throttle control.
1. Mix gasoline with oil. Refer to Off 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. 5).
3. Slowly press and release the primer bulb 10 times (Fig. 6). If fuel
cannot be seen in the primer bulb, press and release the primer
bulb until fuel is visible.
4. Move the cruise control to the LO (slow} position (Fig. 5).
NOTE: Keep the cruise control in the LO (slow} position and DO
NOT squeeze the throttle control until step 9 (Fig. 5).
5. DO NOT squeeze the throttle control. Flip the choke lever
clockwise until it clicks into the START position (Fig. 6).
6. DO NOT squeeze the throttle control. Crouch in the starting
position (Fig. 7).
7. DO NOT squeeze the throttle control. Pull the starter rope with a
controlled and steady motion until the unit starts.
8. DO NOT squeeze the throttle control. Idle the engine for 5 to 10
seconds. If the unit stops during this time: Squeeze and hold the
throttle control or move the cruise control to the HI (fast}
position (Fig. 5). Pull the starter rope with a controlled and
steady motion until the unit starts.
9. Squeeze and hold the throttle control or move the cruise control
to the HI (fast} position (Fig. 5). Allow the engine to warm up for
30 to 60 seconds.
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 cruise control to the LO (slow}
position and repeat steps 8 - 9.
iF... the engine does not start, begin the starting procedure with
step 3.
iF... the engine fails to start after a few attempts: Squeeze and hold
the throttle control or move the cruise control to the HI (fast}
position. Pull the starter rope with a controlled and steady
motion until the unit starts.
iF... the engine is already warm: Squeeze and hold the throttle
control or move the cruise control to the HI (fast} position. Pull
the starter rope with a controlled and steady motion until the unit
starts.
J
1
Fig. 5
\
Primer Bulb
Fig. 6
Starter Rope Grip
Fig.
STOPPING iNSTRUCTiONS
1. Release the throttle control, or move the cruise control to the LO
(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. 5).
Choke Lever
Starting
Position
10
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