General Maintenance
Muffler
This unit must never be operated with a
faulty or missing spark arrester or mufler.
Make sure the muffler is well secured and
in good condition. A worn or damaged
muffler is a fire hazard and may also
cause hearing loss.
Spark Plug
Keep the spark plug and wire connections
tight and clean.
Fasteners
Make sure nuts, bolts, and screws (except
carburetor adjusting screws) are tight.
Daily Maintenance
Prior to each work day, perform the
following:
■
Remove dirt or debris from the engine,
check the cooling fins and air cleaner
for clogging and clean them as neces-
sary.
10-Hour Maintenance
Every 10 hours of operation (more fre-
quently in dusty or dirty conditions):
■
Remove the air cleaner element. See
figure 14. Clean or replace as neces-
sary.
To clean element:
Wash the air filter element thoroughly
in soap and water. Let it dry before
reinstalling the element.
CAUTION!
Never operate the unit if the air
cleaner assembly is damaged or
missing!
WARNING!
Before performing any main-
tenance, repair or cleaning work on
the unit, make sure the engine and
cutting attachment are completely
stopped. Disconnect the spark plug
wire before performing service or
maintnenance work.
■
Carefully remove any accumulation of
dirt or debris from the muffler or the
fuel tank. Dirt build-up in these areas
could cause engine overheating, induce
premature wear, or create a fire hazard.
Loosen Knob
Figure 13
WARNING!
Non-standard parts may not
operate properly with your unit and
may cause damage and lead to
personal injury.
■
Check for loose or missing screws or
components. Make sure the cutting
attachment is securely fastened.
■
Check the entire unit for leaking fuel or
grease.
Remove and clean or
replace the element
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