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23131
50-Hour Maintenance
Every 50 hours of operation
(more frequently in dusty or dirty
conditions):
n Remove and clean the cylinder
cover and clean grass and dirt from
the cylinder ns.
n Remove the cutting attachment,
cutting attachment holder and
gear shaft collar. Remove the ller
plug from the side of the gearcase
and press new grease into the
gearcase until old grease is
pushed out. Use only lithium-base
grease such as Shindaiwa Gear
Case Lubricant or equivalent. See
Figure 30.
n Lubricate main shaft splines.
n Use a hooked wire to extract the
fuel lter from inside the fuel tank.
See Figure 31.
Old
Grease
New
Grease
Gear Shaft
Collar
Filter Element
Hooked
Wire
Figure 30
Figure 31
CAUTION!
Make sure you do not pierce the fuel
line with the end of the hooked wire.
The line is delicate and can be dam-
aged easily.
23128
Every 10 to 15 hours of operation:
Remove and clean the spark plug. Adjust
the spark plug electrode gap to 0.024
inch (0.6 mm). If the spark plug must be
replaced, use only an champion CJ8 or
equivalent type spark plug of the correct
heat range. See Figure 29.
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.
Clean the spark plug
and check the gap at
the electrode.
10/15-Hour Maintenance
0.024 inch
(0.6 mm)
Figure 29
n Remove and replace the lter ele-
ment. Before reinstalling the new
lter element, inspect the condition
of all the fuel system components
(fuel pick-up line, fuel return line,
tank vent line, tank vent, fuel cap
and fuel tank). If damage, splitting
or deterioration is noted, the unit
should be removed from service
until it can be inspected or repaired
by a Shindaiwa-trained service
technician.