Maintenance & Repair Instructions; Decorative Trimming; Air Filter Maintenance; Idle Speed Adjustment - Craftsman WEEDWACKER 316.791201 Operator's Manual

Some line breakage will o ccur from:
• Entanglement with foreign matter
. Normal line fatigue
/_ __'_t Attempting to cut thick, stalky
weeds
Forcing the line into objects __'X_:_,_dy _L_,_" _' \\
such as walls or fence posts
DECORATIVE TRIMMING
Decorative trimming is
accomplished by removing all
vegetation around trees, posts,
fences, etc.
Fig. 12
Rotate the whole unit so that the cutting head is at a 30 ° angle to the ground
(Fig. 12).
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency stated in
the table. These procedures should also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills.
For these types of repairs call 1-800-4-MY-HOME® for more
information.
NOTE: Please read the California/EPA statement that came with the unit
for a complete listing of terms and coverage for the emissions
control devices, such as the spark arrestor, muffler, carburetor, etc.
FREQUENCY MAINTENANCE REQUIRED SEE
Every 10 hours Clean and re-oil air filter p. 7
Every 25 hours Check spark plug condition and gap p. 8
LINE REPLACEMENT
for Hassle-Free
TM
Cutting Head
=
]
WARNING:
Never use metal-reinforced line, wire, chain or
rope. These can break off and become dangerous projectiles.
Always use Craftsman@ Hassle-
Free
TM
XTRA QUIET Spiral Line.
Choose the line size best suited
for the job at hand. Red colored
line is designed for cutting grass
and small weeds. Black colored
line is designed for cutting larger
weeds and light brush.
NOTE: Before inserting new line
into the holes in the
cutting head,identify the
proper holes. Follow
directions as shown on
the line glide plate. Do
Not attempt to remove
the cutting head from the
unit when replacing line.
1. Remove the old line and line
glide plate from the cutting
head.
2. Clean entire surface of cutting
head. Note positions "A" and
"B" on the cutting head.
3. Reinstall line glide plate
(Fig. 13). Align arrow with:
"A" when using medium (red) or
large (black)line, or
Line Glide Plate
Cutting_
Head
Fig. 13
Positioning
Tunnel
Fig. 14
"B" when using lines with diameters smaller than medium (red) line
NOTE: Line glide plate must be reinstalled in cutting head before inserting
new line.
4. Insert both ends of your line
through the proper holes in Line against
the side of the cutting head the hub
(Fig. 14).
5. Pull the line and make sure the
line is against the hub and is
fully extended through the
positioning tunnels (Fig. 15).
6. Correctly installed line will be
the same length on both sides. Positioning
NOTE: Do not rest the Hassle- Tunnel
Free
TM
Cutting Head on
the ground while the unit Fig. 15
is running.
AIR FILTER MAINTENANCE
--
i
_ WARNING:
To avoid serious personal injury, always turn the unit
off and allow it to cool before cleaning or maintaining it.
Failure to maintain the air filter properly can result in poor performance or
can cause permanent damage to the engine.
1. Open the air filter cover by pressing the lock tab in and pulling out on
the air filter cover (Fig. 16).
2. Remove the air filter (Fig. 16).
3. Wash the filter in detergent and water. Rinse the filter thoroughly and
allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat the filter.
5. Squeeze the filter to spread
and remove excess oil. Air Filter
Cover
6. Replace the air filter into the
base plate (Fig. 16).
NOTE: Operating the unit
without the air filter
WILL VOID the warranty.
7. Reinstall the air filter cover.
Position the two small tabs
on the air filter cover into the
two slots in the base plate
and press the air filter cover
down, making sure to align Fig. 16
the lock tab with the lock tab slot, until it snaps into place (Fig. 16).
IDLE SPEED ADJUSTMENT
The idle speed of the engine is adjustable. An idle adjustment screw is
between the air filter cover and the engine starter housing (Fig. 17).
NOTE: Careless adjustments can seriously damage the unit. An authorized
service dealer should make carburetor adjustments.
If, after checking the fuel mixture and cleaning the air filter, the engine still
will not idle, adjust the idle speed screw as follows:
1. Start the engine and run for one minute to warm up. Refer to
Starting/Stopping Instructions.
2. Release the throttle trigger and
let the engine idle. If the engine
stops, insert a small phillips
screwdriver into the idle
adjustment screw (Fig. 17).
Turn the idle speed screw
clockwise 1/8 of a turn at a
time (as needed) until the
engine idles smoothly.
3. If the engine appears to be
idling too fast, turn the idle
speed screw
counterclockwise 1/8 of a
turn at a time (as needed), to
reduce idle speed.
Idle Speed
Screw
Fig. 17
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 an authorized service dealer.
7