15
spark plug gap--all models
Every 10 to 15 hours of operation:
Remove and clean the spark plug.
■
Adjust the spark plug electrode gap
0.6 mm to (0.024 inch). If the spark
plug must be replaced, use only an
BPM8Y or equivalent resistor type
spark plug of the correct heat range.
See Figure 27.
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 mm
(0.024 inch)
Figure 27
NOTE:
The BPM8Y also meets the
requirements for electro magnetic
compliance (EMC).
Maintenance (continued)50-Hour Maintenance
Every 50 hours of operation
(more frequently in dusty or dirty
conditions):
Remove and clean the cylinder cover
■
and clean grass and dirt from the cyl-
inder fins.
Remove the cutting attachment, cut-
■
ting 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 28.
Remove mainshaft and lubricate both
■
ends of the splines.
Use a hooked wire to extract the fuel
■
filter from inside the fuel tank.
See Figure 29.
Remove and replace the
lter element.
Before reinstalling the new filter
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.
Old
Grease
New
Grease
Gear
Shaft
Collar
CAUTION!
Make sure you do not pierce the fuel
line with the end of the hooked wire.
The line is delicate and can be
damaged easily.
Figure 28
Figure 29
Filter Element
Hooked
Wire