Craftsman 247.775870 - Manual (Page 12)

ENGINE MAINTENANCE
Engine Oil
• Only use high quality detergent oil rated with
API service classification SF, SG or SH, Select
the oil's viscosity grade according to your
expected operating temperature. Refer to page
9 of this manual for viscosity chart.
• The four-cycle engine of your chipper-shredder
will normally consume some oil. Therefore,
check engine oil level regularly approximately
every five hours of operation and before each
usage.
• Stop engine and wait several minutes before
checking oil level. With engine on level ground,
the oil must be to FULL mark on dipstick.
• Change engine oil after the first five hours of
operation, and every twenty-five hours
thereafter.
To Drain Oil
Drain oil while engine is warm. Follow the instructions
given below.
• Remove oil drain plug. Catch oil in a suitable
container.
• When engine is drained of all oil, replace drain
plug securely.
• Refill with fresh oil. Refer to GAS AND OIL FILL­
UP section. Replace dipstick.
Air Cleaner
The air cleaner prevents damaging dirt, dust, etc.,
from entering the carburetor and being forced into the
engine and is important to engine life and
performance. The air cleaner consists of a pre­
cleaner or foam filter, and a paper filter. Never run
the engine without air cleaner completely assembled.
Wing Nut
Cover
Pre-Cleaner
Wing Nut
Figure 14
CUSTOMER RESPONSIBILITIES
MAINTENANCE
SCHEDULE
/ / / /
/
/
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iS-
SERVICE
DATES
1—
o
Q
O
CC
Q.
Oil pivot points
Clean shredder
LU
Z
CD
Z
UJ
Check engine oil
Change engine oil </
Service air cleaner
Clean engine
Reset spark plug
Clean muffler
12