Craftsman 4-Cycle PROPANE POWERED TRIMMER 104.79211 - Manual (Page 13)

13
MAINTENANCE
Fig. 19
CHANGING THE OIL
For a new engine, change the oil after the first 10 hours
of operation. Change the oil while the engine is still
warm but not hot. The oil will flow freely and carry
away more impurities.
1. Unplug spark plug wire to prevent accidental starting.
2. Remove the oil fill plug/dipstick.
3. Pour the oil out of the oil fill hole and into a container
by tipping the unit to its side (Fig. 18). Allow ample
time for complete drainage.
NOTE: Wear gloves to prevent injury when handling the
unit.
4. 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.
10W-30 SF, SG, or SH oil.
NOTE: Use the bottle saved from initial use to measure
the correct amount of oil. The bottle measures
approximately 2.5 fluid oz. (75 mL) (Fig. 16).
Check the level with the dipstick. If the level is low,
add a small amount of oil and recheck. Do not overfill
6. Replace the oil fill plug/dipstick.
7. Reconnect the spark plug boot.
CLEANING THE AIR FILTER
Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Failure to maintain
your air filter properly can result in poor performance or
can cause permanent damage to your engine.
1. Remove the phillips head screw in the air filter cover.
Then pull the air filter cover out and upwards (Fig.20) .
2. Remove the air filter (Fig. 20).
Screw
Air Filter
Air Filter
Base Plate
Air Filter
Cover
Fig. 20
3. Wash the filter in detergent and water. Rinse the filter
thoroughly and allow it to dry.
4. Apply enough clean SAE 10W-30 motor oil to lightly
coat the filter.
5. Squeeze the filter and remove excess oil.
6. Replace the filter.
NOTE: If the unit is operated without the air filter, you
will VOID the warranty.
top of the air filter base plate into the slots at the top
of the filter cover.
8. Swing the cover until the air filter cover snaps into
place and replace the screw.
WARNING:
To avoid serious personal injury, be sure
to turn the unit off before servicing it.
4-Cycle Motor Oil
5. Refill the crankcase with 2.5 fluid oz. (75 mL) of SAE
7. Reinstall the air filter cover. Position the hooks on the
Fig. 18