Maintenance - Craftsman 316.792640 Operator's Manual

WARNING:
To prevent serious injury, never perform
maintenance or repairs while the unit is running. Always
allow the unit to cool before servicing or repairing the unit.
For gas-powered units, disconnect the spark plug wire to
prevent the unit from starting accidentally. For electric-
powered units, disconnect the unit from the power source
to prevent the unit from starting accidentally.
REPLACING THE TRIMMING LINE
Only use the trimming line described in the Specifications section.
Other types of trimming line may cause the unit to overheat or fail.
WARNING:
Never use metal-reinforced line, wire, chain or
rope. These can break off and become dangerous projectiles.
NOTE: Always use the correct line length when installing trimming
line. The line may not release properly if the line is too long.
NOTE: The outer spool will remain attached to the unit.
Installing New Trimming Line
1. If necessary, remove any old trimming line and/or obstructions
from the cutting head. Refer to Removing Old Trimming Line and
Obstructions.
2. Cut one 20 foot (6 m) length of new trimming line.
3. Turn the bump knob clockwise to align the arrows (Fig. 8).
4. Insert the new trimming line into the entry eyelet (Fig. 8). Push
the line through the cutting head until a few inches protrude from
the exit eyelet. Pull the line until the ends are of equal length.
5. Turn the bump knob clockwise to wind the line until about 5 inches
(12.7 cm) protrude from each side of the cutting head (Fig. 9). DO
NOT push the bump knob down while winding the line.
Removing Old Trimming Line and Obstructions
If necessary, remove any old trimming line and/or obstructions from
the cutting head.
1. Firmly press in the tabs on the cutting head (Fig. 10).
2. Remove the spool cover (Fig. 10).
3. Remove any old trimming line and/or obstructions.
4. Use a clean cloth to clean the inner reel, outer spool and spool
cover (Fig. 10).
5. Align the tabs on the spool cover with the holes on the outer
spool (Fig. 10). Push the spool cover onto the outer spool until
the tabs securely snap into the holes.

MAINTENANCE

Entry Eyelet
Trimming
Line
Tab
Hole
10
Bump Knob
Exit Eyelet
Arrows
Fig. 8
Fig. 9
Spool Cover
Inner Reel
Outer Spool
Fig. 10