Craftsman WEEDWACKER INCREDI-PULL 316.791700 Operator's Manual page 9

CHECKING THE OIL LEVEL
The importance of checking and maintaining the proper oil level in the
crankcase cannot be overemphasized. Check oil before each use:
1. Stop the engine and allow oil
to drain into the crankcase.
2. Place the engine on a flat,
level surface with the
cutting head shield hanging
off a work bench or table to
get a proper oil level reading
(Fig. 21).
3. Keep dirt, grass clippings and
other debris out of the engine.
Clean the area around the oil
fill plug before removing it.
4. Remove the oil fill plug.
5. Look into the oil fill hole; use
a flashlight if needed. The oil
should be just touching the
inner most thread (Fig. 22).
6.
If the oil level is not touching
the inner most thread on the oil
fill hole, add a small amount of
oil to the oil fill hole and
recheck (Fig. 22). Repeat this
procedure until the oil level
reaches the innermost thread
on the oil fill hole.
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is
in place on the oil fill plug
when checking and
changing the oil (Fig. 23).
CHANGING THE OIL
Change the oil while the engine is
still warm. The oil will flow freely
and carry away more impurities.
1. Remove the oil fill plug.
2. Pour the oil out of the oil fill
hole and into a container by
tipping the unit to a vertical
position (Fig. 24). Allow
ample time for complete
drainage.
3. Wipe up any oil residue on
the unit and clean up any oil
that may have spilled.
Dispose of the oil according
to federal, state and local
regulations.
4. Refill the crankcase with
3.04 fl.oz. (90 ml) of SAE 30
SF, SG, SH oil.
NOTE: Use the bottle and
spout saved from initial
use to measure the
correct amount of oil.
The top of the label on
the bottle measures
approximately 3.04 fl.oz.
(90 ml) (Fig. 26). Check
the level, See Checking
the Oil Level. If the level
is low, add a small
amount of oil and
recheck. Do not overfill
(Fig. 22).
5. Replace the oil fill plug.
MAINTENANCE AND REPAIR INSTRUCTIONS
Fig. 21
Oil Max Fill Line
Fig. 22
Oil Fill Plug
O-Ring
Oil Fill
Hole
Fig. 23
Fig. 24
Fig. 25
Fill Line
Fig. 26
AIR FILTER MAINTENANCE
WARNING:
To avoid serious personal injury, always turn the
unit off and allow it to cool before cleaning or maintaining it.
Failure to maintain the air filter
properly can result in poor
performance or can cause
permanent damage to the engine.
1. Open the air filter cover. Push
the tab on the under side of
the cover inward. Then pull
the air filter cover out and up.
(Fig. 27).
2. Remove the air filter
(Fig. 28).
3. Wash the filter in detergent
and water. Rinse the filter
thoroughly and allow it to dry.
4. Apply enough clean SAE 30
motor oil to lightly coat the
filter.
5.
Squeeze the filter to spread
and remove excess oil.
6. Replace the filter (Fig. 28).
NOTE: If operating the unit
without the air filter,
WILL VOID the warranty.
7. Reinstall the air filter cover. Position the slots on the top of the air filter
cover onto the tabs at the top of the back plate
(Fig. 27).
8. Swing the cover down until the tab on the air filter backplate snaps into
place in the slot on the air filter cover (Fig. 27).
IDLE SPEED ADJUSTMENT
WARNING:
The cutting attachment may spin during idle speed
adjustments. Wear protective clothing and observe all safety
instructions to prevent serious personal injury.
The idle speed of the engine is adjustable. An idle adjustment screw is
between the air filter cover and the engine starter housing (Fig. 29).
NOTE: Careless adjustments
can seriously damage
the unit. Aside from idle
speed, only a Sears or
other qualified service
dealer should make
carburetor adjustments.
If, after checking the fuel and
cleaning the air filter, the engine
still will not idle, adjust the idle
speed screw as follows:
1. Start the engine and let it run at a high idle for a 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 in between the air filter cover and the
engine cover (Fig. 29). Turn the idle speed screw in, clockwise, 1/8 of a
turn at a time (as needed) until the engine idles smoothly.
NOTE: The cutting attachment should not rotate when the engine idles.
3. If the cutting attachment rotates when the engine idles, turn the idle
speed screw counterclockwise 1/8 of a turn at a time (as needed), to
reduce idle speed.
Checking the fuel, cleaning the air filter, and adjusting the idle speed should
solve most engine problems. If not and any of the following are true have the
unit serviced by a Sears or other qualified service dealer:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
9
Air Filter Cover
Air Filter
Tab
Fig. 27
Back Plate
Air
Filter
Locking Tab
Fig. 28
Idle Adjustment
Screw
Fig. 29
Tabs