Maintenance - Craftsman WEEDWACKER 316.711020 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.
Disconnect the spark plug wire to prevent the unit from
starting accidentally.
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. If unsure about these procedures, take the unit to a Sears
or other qualified service dealer. Call 1-800-4-MY-HOME for
more information.
NOTE: 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.
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
Every 10 hours Clean and re-oil the air filter. Refer to
Maintaining the Air Filter.
Every 25 hours Check the spark plug condition and gap. Refer
to Maintaining the Spark Plug.
REPLACING THE TRIMMING LINE
Only use the trimming line described in the Specifications section.
Other types of trimming line may cause the engine to overheat or fail.
WARNING:
Never use metal-reinforced line, wire, chain or
rope. These can break off and become dangerous projectiles.
Installing New Trimming Line
1. Remove the old line from the cutting head.
2. Use a clean cloth to clean the surface of the cutting head. If the
cutting head is too dirty to accept new line, refer to Cleaning the
Cutting Head.
3. Insert the ends of the line through the large circular holes in the
side of the cutting head (Fig. 12). Push the line through the holes
until both ends protrude from the positioning tunnels (Fig. 13).
4. Pull the ends of the line until the line is tight against the cutting
head. Make sure the ends of the line are of equal length (Fig. 14).

MAINTENANCE

Holes
Positioning
Tunnel
Line
13
Fig. 12
Positioning
Tunnel
Fig. 13
Fig. 14
Line
Cutting Head
Line