Shindaiwa HT254EF - Manual (Page 13)

13
Every 10 to 15 hours of operation:
Remove and clean the spark plug.
■
Adjust the spark plug electrode gap
to 0.6 mm (0.24 in). 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 17.
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
(0.24 in)
Figure 17
NOTE:
The NGK CMR5H also meets the require-
ments for electro magnetic compliance
(EMC).
Remove and clean the cylinder cover and clean grass and dirt from the cylinder
■
fins.
Every 50 hours of operation
(more often in dusty or extreme
conditions)
Clean
Debris
Hooked
Wire
Figure 18
50-Hour Maintenance
Filter Element Figure 19
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.
Use a wire hook to extract the fuel filter from inside the fuel tank. (Figure 19).
■
Inspect the fuel filter element. If it shows signs of contamination from debris,
replace it with a genuine Shindaiwa replacement fuel filter element. Before
reinstalling the filter, inspect the fuel line. If you discover damage or deterio-
ration, the unit should be removed from service unitl it can be inspected by a
Shindaiwa-trained service technician.