Craftsman 104.79211 User Manual
Operator’s Manual
®
4-Cycle
PROPANE POWERED TRIMMER
Models: 104.79212
104.79211
16.4 oz. / 465 g propane bottle
not included
For assistance with assembly
or operation call:
1-800-235-5878
CAUTION: Before using
this product, read this
manual and follow all
safety rules and operating
instructions.
Sears, Roebuck and Co., Homan Estates, IL 60179, U.S.A.
Visit our web site: www.sears.com/craftsman
769-03546
• SAFETY
• ASSEMBLY
• OPERATION
• MAINTENANCE
• TROUBLESHOOTING
• WARRANTY
SERVICE AND SAFETY
CRAFTSMAN
4-CYCLE PROPANE TRIMMER
TABLE OF CONTENTS
Service and Safety ..................................................................... 2
Safe Operation Rules ................................................................. 3
Understanding your trimmer ................................................... 4
Assembly ....................................................................................... 5
Oil Information .............................................................................. 6
Understanding Propane ........................................................... 7
Installing the Propane Canister .............................................. 8
Installing Attachments ............................................................... 9
Starting / Stopping ..................................................................... 10
Operation ....................................................................................... 11
Maintenance ................................................................................ 12
Cleaning and Storage ............................................................... 17
Troubleshooting ........................................................................... 17
Specications .............................................................................. 18
Warranty ......................................................................................... 19
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 eective working
order, or the engine be constructed, equipped and
maintained for the prevention of re. Check with with
your state or local authorities for regulations pertaining
to these requirements. Failure to follow these requirements could subject you to liability or a ne. This unit is
is factory equipped with a spark arrestor.
WARNING:
When using this unit, you must follow these
safety rules. Please read these to ensure
the safety of the operator and any bystanders.
Please keep these instructions for later use.
IMPORTANT SAFETY INSRUCTIONS
READ ALL INSTRUCTIONS BEFORE OPERATING
• 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.
• Carefully inspect the area before starting the unit.
Remove all debris and hard or sharp objects such as
glass, wire, etc.
• Be aware of the risk of injury to the head, hands and
feet.
• Clear the area of children, bystanders, and pets. At
a minimum, keep all children, bystanders, and pets
outside a 50 feet (15 m.) radius; there still may be a risk
to bystanders from thrown objects. Bystanders should
be encouraged to wear eye protection. If you are
approached, stop the unit immediately.
• Use only Craftsman red medium thickness (85908)
or black wide thickness (85909) replacement lines.
Never use metal reinforced line, wire or rope.
These can break o and become dangerous projectiles.
• Squeeze the throttle control and check that it returns
automatically to the idle position. Make all adjustments
or repairs before using unit.
All information, illustrations, and specications in this
manual are based on the latest production information
available at the time of printing. We reserve the right to
make changes at any time without notice.
WARNING:
When servicing, use only identical
replacement parts. Use of any other
parts may create a hazard or product
damage.
• Do not operate this unit when tired, ill, under the
inuence of alcohol, drugs or medications.
• This unit is intended for adult use only. Do not allow
children or untrained individuals to use the unit.
• Familiarize yourself with the controls and proper use of
your trimmer prior to using.
2
SAFE OPERATION RULES
• Never start or run the unit inside a closed room or build -
ing. Breathing exhaust fumes can be fatal. Operate this
unit only in a well ventilated outdoor area.
• Wear safety glasses or goggles that meet ANSI Z87.1
standards and are marked as such. Wear ear/hearing
protection when operating this unit. Wear a face or dust
mask if the operation is dusty.
• Wear heavy long pants, boots, gloves and a long sleeve
shirt. Do not wear loose clothing, jewelry, short pants,
sandals or go barefoot. Secure hair above shoulder
level.
• The cutting attachment shield must always be in place
while operating the unit as a trimmer. Do not operate
unit without proper line installed.
• This unit has a clutch. The cutting attachment remains
stationary when the engine is idling. If it does not, have
the unit adjusted by a Sears or other qualified service
dealer.
• Adjust the handle to your size in order to provide the
best grip.
• Be sure the cutting attachment is not in contact with
anything before starting the unit.
• Do not operate the engine faster than the speed needed
to cut, trim or edge. Do not run the engine at high speed
when not cutting.
• Always stop the engine when cutting is delayed or when
walking from one cutting location to another.
• If you strike or become entangled 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. Stop the unit,
switch the engine to o, and disconnect the spark plug
for maintenance or repair.
• Use only identical replacement parts and accesories
designed for this line trimmer.
Use of any other
parts or accessories could lead to serious injury
to the user, or damage to the unit, and void your
warranty
• Keep unit clean of vegetation and other materials. They
may become lodged between the cutting attachment
and shield.
• To reduce fire hazard, replace a faulty muffler and spark
arrestor. Keep the engine and muffler free from grass,
leaves, excessive grease or carbon buildup.
• 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/Stopping Instructions (p.10).
• Only use this tool for its intended purpose.
• Do not overreach. Always keep proper footing and balance.
• Always hold the unit with both hands when operating.
Keep a firm grip on both handles or grips.
• Keep hands, face, and feet at a distance from all moving
parts. Do not touch or try to stop the cutting attachment
when it rotates.
• Do not touch the engine, gear housing or muffler. These
parts get extremely hot from operation, even after the
unit is turned o.
WARNING:
The engine exhaust from this product
contains chemicals known to the state of
California to cause cancer, birth defects
or other reproductive harm.
OTHER SAFETY WARNINGS
• Never store a unit with propane canister attached inside
a building where vapor may reach an open flame or
spark.
• Allow the engine to cool before storing or transporting.
Be sure to secure the unit while transporting.
• Store the unit in a dry area, locked up or up high to
prevent unauthorized use or damage, 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 instruc-
tions. (p.19)
• Keep these instructions. Refer to them often and use
them to instruct other users. If you loan someone this
unit, also loan them these instructions.
SAVE THESE INSTRUCTIONS
3
UNDERSTANDING YOUR TRIMMER
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.
WARNING: Indicates danger, warning or caution.
May be used in conjunction with other symbols or
pictographs.
WARNING: READ OPERATOR’S MANUAL:
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
ANSI Z87.1 standards and ear protection when
operating this unit. Use a full face shield when needed.
OIL : Refer to operator’s manual for the proper type of oil.
ON / OFF STOP CONTROL ON / START / RUN
ON / OFF STOP CONTROL OFF or STOP
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 mufer, gear housing or cylinder. You
may get burned. These parts get extremely hot from operation. They remain hot for a short time after the unit turned o.
THROWN OBJECTS AND ROTATING CUTTER CAN
CAUSE SEVERE INJURY WARNING:
Do not operate without the cutting attachment shield in
place. Keep away from the rotating cutting attachment.
Hassle Free™
Cutting Head
Attachment
Shaft
Upper Handle
Attachment
Coupler
Fast Idle
Lock
On / Off
Control
Anti-Kickback
Bar
SHARP BLADE WARNING:
Sharp blade on cutting attachment shield. To prevent
serious injury, do not touch the line cutting blade.
Starter Rope
Grip
Air Filter
Cover
Throttle
Control
Safety
Trigger
Muffler Guard
Spark Plug
Cover
Shaft Grip
Propane Canister
This illustration may differ from your unit.
For example, the picture shows a straight
shaft; your unit may have a curved shaft.
4
ASSEMBLY
WARNING:
To prevent serious injury, never operate the
trimmer without the cutting attachment
in place.
TOOL KIT
Your unit is provided with a tool kit (Fig.1). This tool kit
consists of the following:
4 mm Allen Wrench
5 mm Allen Wrench
8 & 10 mm Wrench
Four 5 mm Screws
with captive washers
Four Washers
Phillips Screw Driver/
Socket Wrench
Straight Shaft models
include 2 Plate Washers
Fig. 1
INSTALLING CUTTING ATTACHMENT SHIELD
Use the following instructions if the cutting attachment
shield on your unit is not installed. Use only the
instructions that apply to the type of shaft and shield
that your unit is equipped with.
FOR CURVED SHAFT TRIMMERS
Place the cutting attachment shield and spacer against
tube as shown in (Fig.2). Use the 2 screws provided
to clamp the cap and shield onto the tube. Tighten the
screws evenly. Make sure the shield does not touch
any rotating parts.
Cutting Attachment Shield
Spacer
FOR STRAIGHT SHAFT TRIMMERS
Place the cutting attachment shield onto the shaft
mount. Install using provided hardware in the sequence
as shown (Fig.3).
Shaft Mount
Cutting Attachment Shield
Plate Washer
Washer
Lock Washer
Attaching Screws
Fig. 3
INSTALLING THE UPPER HANDLE AND SAFETY BAR
1. Locate the 4 screws included in the tool kit.
2. Assemble the upper handle, safety bar and 4 attaching
screws as shown in (Fig.4). Position the handle parts
evenly over the rubber sleeve on shaft. Do not completely tighten.
3. While holding the unit in the operating position (Fig.
14), position the upper handle to the location that provides you the best grip.
4. Tighten the clamp screws evenly, until the upper handle
is secure.
Attaching
Screws
Upper Handle
Rubber Sleeve
Cap
Attaching Screws
Washer
Fig. 2
Safety Bar
Fig. 4
5
OIL INFORMATION
Oil ll plug/dipstick
Oil Fill Hole
Fig. 7
RECOMENDED OIL TYPE
Using the proper type and weight of oil in the crankcase
is extremely important. Check the oil before each use
and change the oil regularly. Failure to use the correct oil,
or using dirty oil, can cause premature engine wear and
failure. Use a high-quality SAE 10W-30 weight oil of API
(American Petroleum Institute) service class SF, SG, SH.
ADDING OIL TO THE CRANKCASE:
INITIAL USE
NOTE: This unit is shipped without oil in the crankcase.
In order to avoid damage to the unit, put oil in the
crankcase before you attempt to start the unit.
Your unit is supplied with one 2.5 uid oz. (75 mL) bottle
of SAE 10W- 30 SF, SG or SH oil (Fig. 5).
1. Unscrew the top of the bottle of oil and remove the
paper seal covering the o
(Fig. 5).
pening. Replace the top.
2. Place the unit on a level surface (Fig. 6).
Fig. 6
3. Remove the oil plug / dipstick from the crankcase (Fig.7).
4. Pour the entire bottle of oil into the oil ll hole (Fig.7).
4-Cycle Motor Oil
Fig. 5
NOTE: Save the bottle of oil. It can be used to measure
the correct amount during future oil changes. See
Changing The Oil (p.13).
WARNING:
Overlling crankcase may cause hot oil to drip
from air lter, and smoke to come out from the
exhaust. Check and maintain the proper oil
level in the crank case; it is important and
cannot be over emphasized. Check the oil
before each use and change as needed.
See Changing the Oil (p.13).
Check oil before each use and change as needed. Refer
to Changing the Oil (p.13).
5. Wipe up any oil that may have spilled and reinstall
the oil plug/dipstick.
6
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