Homelite UT20004B Troubleshooting, Problem, Possible Cause, Solution, Idle Speed Screw, Page

TROUBLESHOOTING

	PROBLEM		POSSIBLE CAUSE		SOLUTION
String will not advance when		1.	String is welded to itself.	1.	Lubricate with silicone spray.
using the EZ Line™ tap		2.	Not enough string on spool.	2.	Install more string. Refer to “String Replace-
advance system					ment” earlier in this manual.
		3.	String is worn too short.	3.	Pull strings while alternately pressing down on
					and releasing spool retainer.
		4.	String is tangled on spool.	4.	Remove string from spool and rewind. Refer to
					“String Replacement” earlier in this manual.
		5.	Engine speed is too slow.	5.	Advance string at full throttle.
Spool retainer hard to turn		Screw threads are dirty or damaged.		Clean threads and lubricate with grease - if no
when using EZ Line™ tap				improvement, replace the spool retainer.
advance system
Grass wraps around drive-		1.	Cutting tall grass at ground level.	1.	Cut tall grass from the top down to prevent
shaft housing and string		2.	Operating trimmer at part throttle.		wrapping.
head				2.	Operate trimmer at full throttle.
Oil drips from muffler		1.	Operating trimmer at part throttle.	1.	Operate trimmer at full throttle.
		2.	Check oil/fuel mixture.	2.	Use fresh fuel and the correct 2-cycle oil mix.
		3.	Air filter dirty.	3.	Clean per instruction in Maintenance Section.

IDLE SPEED

SCREW

C

B A

STOP

Fig. 22

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