Craftsman INCREDI.PULL 316.792021 Operator's Manual page 9

NOTE: Do not rest the Hassle-Free™ PLUS Cutting Head on the ground
while the unit is running.
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls or fence posts
NOTE: During normal use the trimming line may become worn unevenly
which may cause excessive vibrations in the unit. If this becomes
uncomfortable or uncontrollable, stop the unit and replace the line.
Refer to the Line Replacement instructions above.
CHECKING THE OIL LEVEL
WARNING:
To avoid serious personal injury, always turn the unit
off and allow it to cool before cleaning or servicing it.
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 unit on a flat, level
surface to get a proper oil
level reading.
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. Check the oil level. Oil
should be just to the bottom
of the threads of the oil fill
hole. (Fig. 30).
6. If the level is low, add a small
amount of oil to the oil fill
hole and recheck (Fig. 30).
Repeat this procedure until
the oil level reaches the
bottom of the threads in 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. 29).
CHANGING THE OIL
CAUTION:
Wear gloves to prevent injury when handling the
unit.
For a new engine, change the oil after the first 25 hours of operation. 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 the side (Fig. 31).
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 2.2
fl. oz. (60 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
ounces (90 ml) (Fig. 32).
Check the level (Fig. 25). If the level is low, add a small amount of
oil and recheck. Do not overfill.
5. Replace the oil fill plug.
MAINTENANCE & REPAIR INSTRUCTIONS
Oil Fill Plug
O-Ring
Fig. 29
Oil Fill Hole
Add 1.4-1.5 Oz.
(41-44 ml)
Oil Full Line
Fig. 30
Fig. 31
Fig. 32
AIR FILTER MAINTENANCE
CAUTION:
unit.
Cleaning the Air Filter
Clean the air filter every 10 hours
of operation. It is an important
item to maintain. 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 by
pressing the lock tab in and
pulling out on the air filter
cover (Fig. 33 & 34).
2. Remove the air filter (Fig. 38).
3. Wash the filter in detergent
and water (Fig. 35). Rinse the
filter thoroughly and allow it to
dry.
4. Apply enough clean SAE 30
motor oil to lightly coat the
filter (Fig. 36).
5. Squeeze the filter to spread
and remove excess oil (Fig.
37).
6. Replace the air filter into the
base plate (Fig. 38).
NOTE: Operating the unit
without the air filter, will
VOID the warranty.
7. Reinstall the air filter cover.
Position the two small tabs
on the air filter cover into the
two slots in the back plate
and press the air filter cover
down, making sure to align
the lock tab with the lock tab
slot, until it snaps into place
(Fig. 34 & 33).
IDLE SPEED ADJUSTMENT
The idle speed of the engine is
adjustable. An idle adjustment
screw is between the air filter cover
and the engine starter housing
(Fig. 39).
NOTE: Careless adjustments
can seriously damage
the unit. Aside from idle
speed, only a Sears or
other authorized service
dealer should make
carburetor adjustments.
First, Check Fuel
Old fuel is usually the reason for
idle speed problems. Drain and
refill the tank with fresh fuel prior
to making any adjustments. Refer
to Oil and Fuel Information.
Second, Clean Air Filter
The condition of the air filter is
important to the operation of the
unit. A dirty air filter will restrict air
flow. This is often mistaken for an
out of adjustment idle. Check the
condition of the air filter before
Fill Line
adjusting the idle speed screw.
Refer to Air Filter Maintenance.
9
Wear gloves to prevent injury when handling the
Air Filter Cover
Fig. 33
Air Filter Cover
Fig. 34
Fig. 35
Fig. 36
Fig. 37
Black
Plate
Air
Filter
Fig. 38
Lock Tab
Back Plate