Maintenance; Maintenance Schedule - Craftsman WEEDWACKER 316.73170 Serie Manual Del Operador

WARNING:
To avoid serious personal injury, always stop
the engine and allow it to cool before cleaning or maintaining
the unit. Never perform cleaning or maintenance while the
unit is running. Disconnect the spark plug wire to prevent
the unit from starting accidentally.
WARNING:
Wear protective clothing and observe all
safety instructions to prevent serious personal injury.
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: When using Craftsman® Hassle Free™ XTRA QUIET Spiral
Line, use the line best suited for the job at hand. Medium-sized (red)
line is designed for cutting grass and small weeds. Large-sized
(black) line is designed for cutting larger weeds and light brush.
1. Remove the old line from the cutting head. Push one end of the
trimming line into the cutting head until a loop of line protrudes
from the head. Pull the loop to remove the line.
2. Use a clean cloth to clean the surface of the cutting head.
3. Insert the ends of the new trimming line into the holes in the
cutting head (Fig. 21). Push the line through the holes until both
ends protrude from the positioning tunnels (Fig. 22).
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. 23).
If one end is longer than the other, push the longer end back
through the cutting head partway and pull the shorter end out. If
necessary, repeat this process until both ends are of equal length.
5. Press the exposed loop of trimming line until it is tight against
the cutting head (Fig. 23).

MAINTENANCE

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 you are unsure about these procedures, take the unit to
a Sears or other qualified service dealer. Call 1-888-331-4569
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 1-888-331-4569 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
Every 10 hours
After the first
10 hours and
at 38 hours
Line
Positioning
Tunnel
17
MAINTENANCE REQUIRED
• Clean and re-oil the air filter. Refer to
Maintaining the Air Filter.
• Change the oil. Refer to Changing the Oil.
• Have the rocker arm clearance checked by
a Sears or other qualified service dealer.
• Check the spark plug condition and gap.
Refer to Maintaining the Spark Plug.
Fig. 21
Fig. 22
Cutting Head
Holes
Positioning
Tunnel
Line