16
341032
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 cylin-
der fins.
n
Remove the cutting attachment, cutting
attachment holder and gear shaft collar.
Remove the filler 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 Gearcase Lubricant or
equivalent. See Figure 39.
n
Lubricate main shaft splines.
n
Use a hooked wire to extract the fuel
filter from inside the fuel tank.
See Figure 40.
Old
Grease
New
Grease
Gear
Shaft
Collar
Filter Element
Hooked
Wire
Figure 39
Figure 40
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.
341029
341030
Every 10 to 15 hours
of operation:
n
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 38.
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
0.6–0.7 mm
Figure 38
NOTE:
The NGK CMR5H also meets the require-
ments for electro magnetic compliance (EMC).
n
Remove and replace the filter element.
Before reinstalling the new filter ele-
ment, 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.
