Shindaiwa EB3410 Every 10/15 Hours, Every 50 Hours, 139/150-HourMaintenance, Valve Adjustment

Every 10/15 Hours

Counter-

clockwise to remove.

Clean the spark plug

and check the gap

CAUTION!

Never allow dirt or debris to enter the cylinder bore! Before removing the spark plug, thoroughly clean the spark plug and cylinder head area!

Allow the engine to cool before servic- ing the spark plug! Cylinder threads can be damaged by tightening or loos- ening the spark plug while the engine is hot!

1.	Use the spark plug wrench to remove
	the spark plug. See Figure 14.
2.	Clean and adjust the spark plug gap .
	to 0.6mm (0.024 in.). If the plug must be
	replaced, use a NGK CMR5H or equiva-
	lent type plug of the correct .
	heat range.
3.	Install the spark plug finger-tight in the
	cylinder head, then tighten it firmly
	with the spark plug wrench. If a torque

0.6mm (0.024 in.)

at the electrode.

wrench is available, torque the spark

plug to 16.7-18.6 Nm (148-165 inch-

pounds)

Figure 14 NGK CMR5H

Every 50 Hours

(more frequently if reduced performance is noted)

nINSPECTION Inspect the entire blower and tubes for damage, including loose or missing components, and repair as necessary.

nSPARK PLUG Replace the spark plug with a NGK CMR5H (or equivalent), gapped to 0.6mm (0.024 in.).

nFUEL FILTER 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 dam- aged easily.

nInspect the filter element for signs of contamination from debris. A contami- nated fuel filter should be replaced with a new Shindaiwa replacement element. Before reinstalling the filter, inspect the condition of the fuel line. If you note damage or deterioration, the blower should be removed from service until it can be inspected by a Shindaiwa-trained service technician.

nCOOLING SYSTEM Use a wood or . plastic scraper and a soft brush to . remove dirt and debris from the cylinder fins and crankcase.

Hooked

Wire

Fuel

Filter

Fuel Tank 

Figure 15

139/150-Hour Maintenance

Maintenance after first

139-hours, then every 150-hours thereafter.

nCombustion chamber should be decar- bonized, and the valve clearance should be adjusted. It is highly recommended that this is done by a Shindaiwa-trained service technician.

nReplace the spark plug annually: Use only NGK CMR5H or equivalent . resistor type spark plug of the correct heat range. Set spark plug electrode gap to 0.6mm (0.024 in.).

NOTE:

The NGK CMR5H also meets the . requirements for electro magnetic . compliance (EMC).

Valve Adjustment

1.Remove cylinder cover, rocker arm cover, and set piston at TDC-compression. .

CAUTION!

nPerforming a valve adjustment incorrectly may cause hard starting and/or can damage the unit. Refer to the C-4 Service Manual for com- plete valve adjustment procedure and torque specifications.

nIf you are unfamiliar with this engine or uncomfortable with this proce- dure, consult with an authorized Shindaiwa servicing dealer.

2.Loosen adjuster locknut so that the 2.5 mm Allen socket head adjustment screw can turn freely.

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