Zenoah BK3420FL-EZ owner manual Maintenance, Inspection Items Measures, Regular Inspection

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7. MAINTENANCE

WARNING

•Be sure to stop the engine when carrying out inspection and maintenance.

•Do not modify the machine or disassemble the engine.

•Use ZENOAH’s genuine parts or designated parts when replacing parts.

•If you cannot inspect or maintain the machine yourself, contact the shop where you bought it.

■INSPECTION BEFORE AND AFTER CUTTING Inspect the following items before and after cutting.

	INSPECTION ITEMS		MEASURES
		• The mounting bolt has become loose.	• Tighten
1	Blade	• Broken, cracked, chipped, or bent.	• Replace
		• The blade edges have worn out.	• Re-sharpen or replace
2	Debris guard	• Mounted has become loose.	• Tighten
		• Broken.	• Replace
3	Grip	• Oil has stuck to the grip.	• Wipe off
4	Throttle lever	• Does not move smoothly.	• Repair or replace
5	Throttle wire	• The play is too large or too small.	• Repair
		• The throttle wire does not move smoothly.	• Repair or replace
6	Fuel tank	• Fuel leaks out.	• Repair or replace
		• The fuel pipe has been damaged.	• Replace
7	Shoulder belt	• Broken or cracked.	• Repair or replace
8	Flexible shaft	• The connecting part has become loose.	• Repair or replace
		• Cut off, cracked, discolored, or deformed.	• Replace
9	Gear case	• The shaft has become loose.	• Repair or replace
10	Parts to be tightened	• Loose or slipped off.	• Tighten or repair

■REGULAR INSPECTION

Carry out inspection for each period of use as specified below.

INSPECTION AND MAINTENANCE ITEM		PERIOD OF USE				REMARKS
		25 hours	50 hours	100 hours
	Removal of dust from cylinder fin	O	O		O
	Cleaning of the air cleaner element	O	O		O
	Checking, cleaning and adjustment of the spark plug	O	O		O	Gap 0.6 to 0.7 mm
Engine	Cleaning of the fuel tank		O		O
	Additional tightening of the bolt for mounting the cylinder				O
	Additional tightening of the parts for the engine				O
	Removal of the carbon from the muffler				O
	Supply of grease for the gear case	O	O		O
Main body	Removal of the contamination of the clutch drum				O
	Supply of grease for the flexible shaft	O	O		O

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