Maintenance (continued)

10/15-Hour Maintenance

Every 10 to 15 hours of operation:

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.

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 resis- tor type spark plug of the correct heat range. See Figure 14.

NOTE:

The NGK CMR5H also meets the requirements for electro magnetic com- pliance (EMC).

0.024–0.028 inch

Clean the spark plug

and check the gap at

(0.6–0.7 mm)

the electrode.

 

Figure 14

 

50-hour Maintenance

Every 50 hours of operation (more frequently in dusty or dirty conditions):

. Remove and clean the cylinder cover and clean dirt from the cylinder fins.

. Use a hooked wire to extract the fuel filter from inside the fuel tank. See Figure 15.

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.

3.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, split- ting or deterioration is noted, the unit should be removed from service until it can be inspected or repaired by a Shin- daiwa-trained service technician.

Hooked

Wire

Filter Element

Figure 15

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Shindaiwa GP3410, 6850-9430 manual 10/15-Hour Maintenance, Every 10 to 15 hours of operation