Shindaiwa 81704 - Manual (Page 15)

15
50-hour Maintenance
Every 50 hours of operation (more
frequently in dusty or dirty condi-
tions):
n Remove and clean the cylinder cover and
clean grass and dirt from the cylinder fins.
n Remove the cutting attachment, cutting
attachment holder and gear shaft collar.
Remove the filler plug from the side of
the gear case and press new grease into
the gear case 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 filter
from inside the fuel tank. See Figure 31.
Old
Grease
New
Grease
Gear Shaft
Collar
Figure 30
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.
Every 10 to 15 hours
of operation:
Remove and clean the spark plug. Adjust
the spark plug electrode gap to 0.024 - 0.028
inch (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 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
0.024–0.028 inch
(0.6–0.7 mm)
Figure 29
NOTE:
The NGK CMR5H also meets the require-
ments for electro magnetic compliance (EMC).
Remove and replace the filter element.
Before reinstalling the new filter element, in-
spect the condition of all the fuel system com-
ponents (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.
Filter Element
Hooked
Wire
Figure 31