28
WARNING!
Stop the engine and check the
blade for cracks or other damage.
Replace the damaged blade
immediately!
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 necessary.
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.
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.
10-Hour Maintenance
NOTE:
If the machine is used in dusty or
dirty conditions, perform the periodic
maintenance more frequently.
Remove the air cleaner filter. See
figure 30. Clean or replace as
necessary. To clean filter wash it
thoroughly in soap and water. Let it
dry before reinstalling the filter.
CAUTION!
Do not operate the unit if the air
cleaner or filter is damaged, or if
the filter is wet or water soaked.
10/15-Hour Maintenance
CAUTION!
Before removing the spark plug,
clean the area around the plug
to prevent dirt and debris from
getting into the engine’s internal
parts.
Remove and clean the spark plug.
Adjust the spark plug electrode
gap to 0.6-0.7 mm. If the spark plug
must be replaced, use only an NGK
CMR5H or equivalent resistor type
spark plug of the correct heat range.
See Figure 31.
Remove and
clean or replace
the filter
Knob
Figure 30
