Changing Oil; Check Spark Plug; Check Chute Cables - Sears Craftsman 247.88790 Manual De Uso

Changing Oil

Change engine oil after first two hours of operation and
every 25 hours thereafter.
In order to change oil, you will have to first drain the
used engine oil from the engine and then refill with fresh
oil.
1. Drain oil while engine is warm. Remove oil drain
plug located at the bottom of the recoil starter of the
engine. Catch oil in a suitable container.
2. When engine is drained of all oil, replace drain plug
securely.
3. Remove the dipstick from the oil fill. For location of
the oil fill, see Figure 7. Pour fresh oil slowly
through the plug. Replace dipstick.
Check and make sure that the level of oil is up to the
FULL mark on the dipstick.

Check Spark Plug

Clean spark plug and reset the electrode gap to 0.030"
at least once a season or every 100 hours of operation;
replace every 200 hours of operation.
• Clean area around the spark plug base.
• Remove and inspect the spark plug.
• Replace the spark plug if electrodes are pitted,
burned, or the porcelain is cracked. See Figure 11 .
NOTE: Do not sandblast spark plug. Spark plug should
be cleaned by scraping or wire brushing and washing
with a commercial solvent.
Electrodes
.030"
Gap

Check Chute Cables

Once a season or every 25 hours of operation,
whichever is earlier, check whether the chute cables
have slackened. Adjust if necessary, following
instructions on page 19.
15
Porcelain
Figure 11