Craftsman 536.881800 - Manual (Page 20)

MAINTENANCE
ENGINE
LUBRICATION
Check the crankcase oil level before
starting the engine and after each eight
{8) hours of continuous use. See
Figure 18. Add S.A.E. 5W30 motor oil
as needed. Synthetic 5W30 is accept­
able for aii temperatures. Tighten fill
cap/dipstick securely each time you
check the oil level.
Oil Fill Cap/Dipstick
■ ,/
Oil Drain
Plug
NOTE: Oil level niusi be at FULL mark.
Figure 18
Change the oil every fifty (50) hours or
at least once a year if the snow thrower
is not used for fifty (50) hours.
TO CHANGE ENGINE OIL
1. Position the snow thrower so that
the
oil drain plug
is at the lowest
point on the engine.
2. When the engine is warm, remove
the oil drain piug and the oil fili
cap/dipstick (see Figure IS). Drain
the oil into a suitable container.
3. After draining aii the oil, reinstall the
oil drain plug securely.
4. Fill the engine crankcase with the
recommended motor oil, pouring
slowly. DO NOT OVERFILL. See
“To Add Oil” in the Operation Sec­
tion.
SPARK PLUG
Check the
spark plug
every twenty-
five (25) hours. Replace the spark plug
if the electrodes are pitted or burned, if
the porcelain is cracked, or every 100
hours of use.
1. Make sure the spark plug is clean.
Clean the
spark plug
by carefully
scraping the electrodes (do not
sand blast or use a wire brush).
2. Check the spark plug gap with a
feeler gauge and reset gap to 0.30”
if necessary. See Figure 19.
3. Before installing the spark plug,
coat the threads lightly with oil for
easy removal. Tighten the spark
plug to a torque of 15 foot-pounds.
Feeler Gauge
0.030”
Figure 19
F-0410108L 20