Maintenance Schedule; Air Filter Maintenance - Craftsman WEEDWACKER Incredi-Pull 316.791870 Operator's Manual

Craftsman Convertible TMFeature
The coupler allows you to convert this unit for use with the
following add-on attachments:
• Cultivator
• Blade Edger
• Blower
• Brush Cutter
• Pruner
WARNING: To avoid serious personal injury and
damage to the unit, shut the unit off before
removing or installing add-ons.
To Install Attachments
NOTE: To make installation easier, place the unit on the ground
or on a workbench.
1. Make sure the unit is turned completely off.
2. Turn the knob counterclockwise to loosen the coupler (Fig. 11).
3. While firmly holding the add-on, push it straight into the
coupler until the release button (Fig. 12) snaps into the
primary hole (Fig. 12). The primary hole is on the opposite
side of the coupler from the knob (Fig. 12). Align the release
button with the Guide Recess (Fig. 12) to help installation.
4. Turn the knob clockwise to tighten (Fig. 13).
,_ CAUTION: These add-on attachments are to be I
snapped into the primary hole only. Using the wrong
hole could lead to personal injury or damage to the unit.
To Remove Attachments
1. Make sure the unit is turned completely off.
2. Turn the knob counterclockwise to loosen the coupler (Fig. 11).
3. Press and hold the release button (Fig. 12).
4. While firmly holding the upper shaft housing (Fig. 13), pull
the attachment out of the coupler.
MAINTENANCE SCHEDULE
WARNING: To prevent serious injury, never I
perform maintenance or repairs with unit running. I
Always service and repair a cool unit. Disconnect the
spark plug wire to ensure that the unit cannot start.
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 your unit to any non-road engine repair
establishment, individual or authorized 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.
In order to assure peak performance of your engine, inspection of the
engine exhaust port may be necessary after 50 hours of operation. If
you notice lost RPM, poor performance or general lack of
acceleration, this service may be required. If you feel your engine is in
need of this inspection, refer service to a Sears or other qualified
service dealer. Call 1-800-4-MY-HOME _ for more information. DO
NOT attempt to perform this process yourself as engine damage may
result from contaminants involved in the cleaning process for the port.
FREQUENCY MAINTENANCE REQUIRED SEE
Before star_ing Fill fuel tank with fresh fuel p. 6
engine
Every 10 hours Clean and re-oil air filter p. 9 & 10
Check and clean spark arrestor p. 10
Every 25 hours
Check spark plug condition and gap p. 11
Inspect exhaust port and spark
Every 50 hours arrestor screen for clogging or p. 10
obstruction
AIR FILTER MAINTENANCE
WARNING: To avoid serious personal injury,
always turn your unit off and allow it to cool before
clean or service it.
Removing the Air Filter/Muffler Cover
1. Remove the four (4) screws
securing the air filter/muffler
cover (Fig, 14). Use a flat
blade or T20 Torx bit
screwdriver.
2. Pull the cover from the
engine, Do not force.
Cleaning the Air Filter
Screws
Failure to maintain your air filter
properly can result in poor
performance or can cause
permanent damage to your
engine.
1. Remove air filter/muffler
cover. Refer to Removing
the Air Filter/Muffler Cover
above, Fig. 14
2. Turn cover over and look inside to locate the air filter. Remove
the air filter from inside the air filter/muffler cover (Fig, 15).
3. Wash the filter in detergent and water (Fig. 16). Rinse the filter
thoroughly, Squeeze out excess water, Allow it to dry completely.
4. Apply enough clean SAE 30 oil to lightly coat the filter (Fig, 17).
5. Squeeze the filter to spread and remove excess oil (Fig. 18).
I