Homelite UT10570 manual Troubleshooting

TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION

Engine starts, runs, and	Carburetor requires adjustment.
accelerates but will not
idle.
Chain turns at idle.	Carburetor requires adjustment.

Turn idle speed screw “T” clockwise to increase idle speed. See Figure 81.

Turn idle speed screw “T” counterclockwise to decrease speed. See Figure 81.

	1.	Chain oil tank empty.
Bar and chain running
hot and smoking.	2.	Chain tension is too tight.
	3.	Oiler is not functioning.

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 Center.

	1.	Chain brake is engaged.
Engine starts and runs,
but chain is not rotating.	2. Chain tension is too tight.
	3.	Guide bar and chain as-
		sembled incorrectly.
	4.	Guide bar and/or chain are
		damaged.

1.Release chain brake, refer to “Operation – Operat- ing 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 carburetor adjustment needle(s) are equipped with plastic cap(s) that prevent counterclockwise rotation from the original factory adjustment. If your product exhibits specific performance problem(s) where the Troubleshooting Section recommends a counterclockwise needle adjustment and you have made no adjustments since the original purchase, take the product to a factory authorized service center for repair. In most cases, the needed adjustment is a simple task for the factory trained service representative.

Fig. 81

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