Zenoah HEZ2500F manual Maintenance Chart,  19 

9. Maintenance

Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual.

WARNING

•Always be sure to stop the engine before inspecting the stick edger for problems or performing maintenance.

•Never alter the stick edger or take the engine apart.

•When replacing parts, always be sure to use only RedMax products or products which have been certified by RedMax for use with the RedMax stick edger.

■BE SURE TO CHECK THE FOLLOWING BEFORE USING YOUR STICK EDGER

		Item to be checked							Response
1		Edging mechanism	• See if attachment is loose					• Tighten screws and bolts
			• Check if edges of blades are dull					• Sharpen or replace blades
2		Throttle	• Stiff and difficult to move					• Repair or replace
3		Throttle wire	• Too loose, too tight					• Adjust
			• Stiff and difficult to move					• Repair or replace
4		Engine attachment	• See if fittings are loose					• Tighten fittings
5		Fuel tank	• See if attachment is loose					• Tighten screws and bolts
			• See if fuel pipe is damaged					• Replace
			• See if cap packing is damaged					• Replace
6		Muffler	• See if attachment is loose					• Tighten screws and bolts
7		Cutting blade	• See if damaged or worn shorter					• Replace
			than usable length
■ MAINTENANCE CHART
						every	every		every
						25	50		100
	system/compornent			procedure	before	hours	hours		hours	note
					use	after	after		after
	fuel leaks, fuel spillage			wipe out	✔
	fuel tank, air filter, fuel filter			inspect/clean	✔	✔				replace, if necessary
	idle adjusting screw			see ■ADJUSTING	✔					replace carburetor
ENGINE				IDLING SPEED (p.17)						if necessary
	spark plug			clean and readjust				✔		GAP: .025in(0.6~0.7mm)
				plug gap						replace, if necessary
	cylinder fins, intake air cooling vent			clean		✔
	muffler, spark arrester, cylinder exhaust port			clean				✔
	throttle lever, ignition switch			check operation	✔
	cutting parts			replace if	✔
				something's wrong
SHAFT
	gear case			grease		✔
	screws/nuts/bolts			tighten/replace	✔				✔	not adjusting screws
	drive shaft			grease				✔
	cutting blade			inspect/replace	✔					replace, if necessary

19 