To service air cleaner, Cooling fins – Craftsman 247.775860 User Manual

Page 13

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the engine without air cleaner completely assembled.

To Service Air Cleaner:

1. Service pre-cleaner after every 25 hours of use,

or at least once a season,

2. Service filter every 100 hours of use, or at least

once a season.

Service pre-cleaner and filter more often under
dusty conditions.

•

Remove wing nut and cover.

•

Slide pre-cleaner off filter. Clean the inside of
base and cover thoroughly.

Cooling Fins

BASE-

PAPER FILTER FOAM HLTER (IF SO EQUIPPED)

COVER

WING NUT

Figure 13

•

Clean pre-cleaner as follows:

a. Wash in water and detergent solution, and

squeeze (do not twist) until all dirt is

removed.

b. Rinse thoroughly in clear water.
c. Wrap in a clean cloth and squeeze (do not

twist) until completely dry, or allow to air dry.

d. Saturate with engine oil and squeeze (don’t

twist) to distribute oil and remove excess oil.

NOTE: If the pre-cleaner is torn or damaged in any

way, repiace it.

•

If necessary, replace paper filter (do not attempt

to clean). Install new filter on base.

•

Slide pre-cleaner over filter.

•

Install cover and wing nut.

•

Tighten wing nut securely.

Clean Engine

•

Clean engine periodically. Remove dirt and

debris with a cloth or brush.

•

Frequently remove grass clippings, dirt and

debris from cooling fins, air intake screen and

levers and linkage. This will help ensure

adequate cooling and correct engine speed.
See figure 14

Figure 14

• Yeariy or every 25 hours, whichever occurs first,

remove the blower housing and clean the areas
shown in figure 14 to avoid overspeeding,

overheating and engine damage. Clean more
often if necessary.

NOTE: Cleaning with a forceful spray of water is not
recommended as water could contaminate the fuei
system.

WARNING: Temperature of muffler and

nearby areas may exceed 150° F(65°C).

Avoid these areas.

Spark Plug

• Clean the spark plug and reset the gap to .030"

at least once a season or every 50 hours of
operation. See figure 15. Spark plug
replacement is recommended at the start of
each season. Refer to engine parts list for
correct spark plug type.

NOTE: Do not sandblast spark plug. Spark plug
should be cleaned by scraping or wire brushing and

washing with a commercial solvent.