Craftsman WEEDWACKER INCREDI.PULL 316.791020 Operator'S Manual Download Page 7

Page: 7 / 24

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, muffl er, carburetor, etc

LINE INSTALLATION

This section covers both SplitLine® and standard single line installation.
Always use original equipment manufacturer 0.095 in. (2.41 mm) replacement
line. Line other than the specifi ed may make the engine overheat or fail.
There are two methods to replace the trimming line:

•

Wind the inner reel with new line

•

Install a prewound inner reel

Removing the Existing Inner Reel

1. Hold the outer spool with one hand and

unscrew the bump knob counterclockwise
(Fig. 14). Inspect the bolt inside the
bump knob to make sure it moves freely.
Replace the bump knob if damaged.

2. Remove the inner reel from the outer

spool (Fig. 15).

3. Remove spring from the inner reel (Fig. 15).
4. Use a clean cloth to clean the the inner

reel, spring, shaft, and inner surface of the
outer spool.

5. Check the indexing teeth on the inner

reel and outer spool for wear (Fig. 16). If
necessary, remove burrs or replace the
reel and spool.

NOTE:

Always use the correct line length
when installing trimming line on
the unit. The line may not release
properly if the line is too long.

Single Line Installation

Go To Step 8 for SplitLine® Installation:
6. Take approximately 20 feet (6 m) of new

trimming line, loop it into two equal
lengths. Insert each end of the line
through one of the two holes in the inner
reel (Fig. 17). Pull the line through the
inner reel so that the loop is as small as
possible.

7. Wind the lines in tight even layers onto the

reel (Fig. 18). Wind the line in the direction
indicated on the inner reel. Place an index
fi nger between the two lines to stop the
lines from overlapping. Do not overlap the
ends of the line. Proceed to step 12.

SplitLine® Installation

8. Take approximately 10 feet (3 m) of new

trimming line. Insert one end of the line
through one of the two holes in the inner
reel (Fig. 19). Pull the line through the inner
reel until only about 4 inches is left out.

9. Insert the end of the line into the open

hole in the inner reel and pull the line tight
to make the loop as small as possible
(Fig. 19).

10. Before winding, split the line back about

6 inches.

11. Wind the line in tight even layers in the

direction indicated on the inner reel.

NOTE:

Failure to wind the line in the
direction indicated will cause the
cutting head to operate incorrectly.

12. Insert the ends of the line into the two holding slots (Fig. 20).
13. Insert or slide the ends of the line through or into the eyelets in the outer

spool and place inner reel with spring inside the outer spool (Fig. 21).
Push the inner reel and outer spool together.

NOTE:

The spring must be assembled on
the inner reel before reassembling
the cutting head.

14. While holding the inner reel and outer

spool, grasp the ends and pull fi rmly to
release the line from the holding slots in
the spool.

15. Hold the inner reel in place and install the

bump knob by turning clockwise. Tighten
securely.

Installing a Prewound Reel

1. Hold the outer spool with one hand and

unscrew the bump knob counterclockwise
(Fig. 14). Inspect the bolt inside the
bump knob to make sure it moves freely.
Replace the bump knob if damaged.

2. Remove the old inner reel from the outer

spool (Fig. 15).

3. Remove the spring from the old inner reel (Fig. 15).
4. Place the spring in the new inner reel.

NOTE:

The spring must be assembled on the inner reel before
reassembling the cutting head.

5. Insert or slide the ends of the line through or into the eyelets in the outer

spool (Fig. 21).

6. Place the new inner reel inside the outer spool. Push the inner reel and

outer spool together. While holding the inner reel and outer spool, grasp
the ends and pull fi rmly to release the line from the holding slots in the
spool.

7. Hold the inner reel in place and install the bump knob by turning

clockwise. Tighten securely.

AIR FILTER MAINTENANCE

Cleaning the Air Filter

The air fi lter is an important item to maintain. Failure to maintain the air fi lter
properly can result in poor performance or can cause permanent damage to
the engine.
1. Open the air fi lter cover by pressing the

lock tab in and pulling out on the air fi lter
cover (Fig. 22).

2. Remove the air fi lter (Fig. 22).
3. Wash the fi lter in detergent and water.

Rinse the fi lter thoroughly and allow it to
dry.

4. Apply enough clean SAE 30 motor oil to

lightly coat the fi lter.

5. Squeeze the fi lter to spread and remove excess oil.
6. Replace the air fi lter into the base plate (Fig. 22).

NOTE:

Operating the unit without the air fi lter WILL VOID the warranty.

7. Reinstall the air fi lter cover. Position the two small tabs on the air fi lter

cover into the two slots in the base plate and press the air fi lter cover
down, making sure to align the lock tab with the lock tab slot, until it
snaps into place (Fig. 22).

IDLE SPEED ADJUSTMENT

The idle speed of the engine is adjustable. An idle adjustment screw is
between the air fi lter cover and the engine starter housing (Fig. 23).

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 fi lter, 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. 23). 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.

FREQUENCY

MAINTENANCE REQUIRED

SEE

Every 10 hours

Clean and re-oil air fi lter

p. 7

Every 25 hours

Check spark plug condition and gap

p. 8

Fig. 18