Operating Instructions; Maintenance And Repair Instructions - Craftsman INCREDI.PULL 316.792021 Operator's Manual

OPERATING INSTRUCTIONS

HOLDING THE TRIMMER
WARNING:
Always wear eye, hearing, foot and body protection
to reduce the risk of injury when operating this unit.
Before operating the unit, stand in the
operating position (Fig. 13). Check for the
following:
• The operator is wearing eye protection and
proper clothing
• With a slightly-bent right arm, the
operator's right hand is holding the shaft
grip
• The operator's left arm is straight, the left
hand holding the handle
• The unit is at waist level
• The cutting attachment is parallel to the
ground and easily contacts the grass
without the need to bend over
ADJUSTING TRIMMING LINE LENGTH
The cutting head allows the release of
trimming line without stopping the engine. To
release more line, lightly tap the cutting attachment on the ground (Fig. 14)
while operating the trimmer at high speed.
NOTE: Always keep the trimming line fully extended. Line release
becomes more difficult as the cutting line becomes shorter.
Each time the head is bumped, about 1 inch (25.4 mm) of trimming line is
released. A blade in the cutting attachment shield will cut the line to the
proper length if excess line is released.
For best results, tap the cutting head on bare ground or hard soil. If line
release is attempted in tall grass, the engine may stall. Always keep the
trimming line fully extended. Line release becomes more difficult as the
cutting line becomes shorter.
NOTE: Do not rest the cutting head on the ground while the unit is
running.
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls
or fence posts
TIPS FOR BEST TRIMMING RESULTS
• Keep the cutting attachment parallel to the
ground.
• Do not force the cutting attachment. Allow the tip of the line to do the
cutting, especially along walls. Cutting with more than the tip will reduce
cutting efficiency and may overload the engine.
• Cut grass over 8 inches (200 mm) by working from top to bottom in small
increments to avoid premature line wear or engine drag.
• Slowly move the trimmer into and out of the cutting area at the desired
height. Move either in a forward-backward or side-to-side motion. Cutting
shorter lengths produces the best results.
• Trim only when grass and weeds are dry.
• The cutting head and shield are designed to allow the unit to cut in either
direction, from right to left or left to right.
• The life of the cutting line is dependent upon:
- Proper adherence of explained trimming techniques
- What vegetation is cut
- Where vegetation is cut
For example, the line will wear faster when trimming against a foundation
wall as opposed to trimming around a tree.
DECORATIVE TRIMMING
Decorative trimming is accomplished by
removing all vegetation around trees, posts,
fences and more.
Rotate the whole unit so that the cutting
attachment is at a 30° angle to the ground
(Fig. 15).
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:
NOTE:
FREQUENCY
Before starting
engine
Every 10 hours
1st change at 10
hours
Fig. 13
Every 40 hours after
Every 40 hours
RAPID REWIND™ CUTTING HEAD LINE INSTALLATION
Only use 0.095 in. (2.41 mm) replacement line. Other line width may make the
engine overheat or fail.
NOTE:
1. Align the arrows on the cutting
head knob with the outer
spool eyelets, if they are not
already.(Fig. 16)
2. Using 10.5 ft. (3.2 m) of 0.095
in. (2.41 mm) replacement line
push an end of the line through
one of the eyelets until it
Fig. 14
protrudes through the opposite
side. Continue pushing or
pulling the line until the line is
evenly distributed, so
approximately 5 ft. (1.5 m) is
visible from both sides of the
cutting head.(Fig. 17)
3. Hold the cutting head knob and
turn the cutting head clockwise
to wind the line around the
inner reel until 5 in. (12.7 cm) is
protruding from each side of
the cutting head.(Fig. 17)
NOTE:
4. Start the unit and bump the cutting head on the ground until the desired
cutting length is achieved.
Fig. 15
7
MAINTENANCE & REPAIR INSTRUCTIONS
WARNING:
To prevent serious injury, never perform
maintenance or repairs with unit running. Always service and
repair a cool unit.
Some maintenance procedures may require special tools or skills. If
unsure about these procedures take the unit to Sears or other qualified
service dealer. Call 1-800-4-MY-HOME® for more information.
Maintenance, replacement, or repair of the emission control devices
and system may be performed by a Sears or other qualified service
dealer. Call 1-800-4-MY-HOME® for more information.
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel
Check oil
Clean air filter
Change oil
Clean spark arrestor and change oil
Check rocker arm to valve clearance
and adjust
Check spark plug condition and gap
There may be a need to
remove the old line prior
to installing new line. If
so, please refer to
Removing the old line or
obstructions.
Eyelet
If winding the line from a
large spool, push
approximately 5 ft. (1.5 m)
of line through the cutting
head to the other side.
Turn the cutting head to
wind the line in. When the
line winds to a distance of
5 in. from the head, cut
the line on the spool side 5 inches from the head.
SEE
p. 6
p. 9
p. 9
p. 9
p. 11
p. 10
p. 11
Cutting
Arrow
Head Knob
Fig. 16
Fig. 17
Tab
Fig. 18