Homelite UT74121A manual tions. See Figure, Troubleshooting, Problem, Possible Cause, Solution

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE	SOLUTION
Engine starts, runs, and	Carburettor requires adjustment.	Turn idling speed screw “T” clockwise to increase
accelerates but will		idling speed. If chain turns at idle, turn idling speed
not idle.		screw “T” anticlockwise to decrease speed. Wear
		protective equipment and observe all safety instruc-
		tions. See Figure 82.

Bar and chain running	1.	Chain oil tank empty.
hot and smoking.
	2.	Check chain tension for
		overtight condition.
	3.	Check for oiler function.

1.Oil tank should be filled every time that fuel tank is filled.

2.Tension chain per instructions in “Maintenance – Adjusting the Chain Tension” earlier in this manual.

3.Run at half throttle 30 to 45 seconds. Stop saw and check for oil dripping from SAFE-T-TIP and guide bar. If oil is present the chain may be dull or bar may be damaged. If no oil is on the SAFE-T-TIP, contact a Homelite service dealer.

Engine starts and runs,	1. Chain brake engaged.
but chain is not rotating.
	2.	Chain tension too tight.
	3.	Check guide bar and chain
		assembly.
	4.	Check guide bar and chain
		for damage.

1.Release chain brake. Refer to “Operation – Operating the Chain Brake” earlier in this manual.

2.Tension chain per instructions in “Maintenance – Adjusting the Chain Tension” earlier in this manual.

3.Refer to “Maintenance – Assembling the Bar and Chain” earlier in this manual.

4.Inspect guide bar and chain for damage.

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

Fig. 82

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