Homelite F3040, UT70131 manual Idle Speed Screw Needle

TROUBLESHOOTING

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.

PROBLEM POSSIBLE CAUSE SOLUTION

String will not advance:	1.	String welded to itself.
	2.	Not enough string on spool.
	3.	String worn too short.
	4.	String tangled on spool.
	5.	Engine speed too slow.

1.Lubricate with silicone spray.

2.Install more string. Refer to “String Replace- ment” earlier in this manual.

3.Pull strings while alternately pressing down on and releasing spool retainer.

4.Remove string from spool and rewind. Refer to “String Replacement” earlier in this manual.

5.Advance string at full throttle.

Grass wraps round shaft	1.	Cutting tall grass at ground level.
housing and string head:	2.	Operating trimmer at part throttle.

1.Cut tall grass from the top down.

2.Operate trimmer at full throttle.

Spool retainer hard to turn:

Screw threads dirty or damaged.

Clean threads and lubricate with grease - if no improvement, replace spool retainer.

Oil drips from silencer:	1.	Operating trimmer at part throttle
	2.	Check oil/fuel mixture.
	3.	Air filter dirty.
	4.	Carburettor requires adjustment.

1.Operate trimmer at full throttle.

2.Use fresh fuel and the correct 2-cycle oil mix.

3.Clean air filter. Refer to “Replacing and Cleaning the Air Filter” earlier in this manual.

4.Turn “H” needle clockwise 1/16 - 1/8 turn. See Figure 25.

NOTE: The carburettor adjustment needle(s) are equipped with plastic cap(s) which prevent anticlockwise rotation from the original factory adjustment. If your unit exhibits specific performance problem(s) where the Troubleshooting Section recommends an anticlockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken to a factory- authorised service dealer for repair. In most cases, the needed adjustment is a simple task for the factory-trained service represen- tative.

IDLE SPEED

SCREW

“L” LO

NEEDLE

“H” HIGH	Fig. 25
NEEDLE

20