Homelite UT74121A manual Adjusting The Chain Tension, Chain Maintenance, See Figures 52, 53 and

MAINTENANCE

ADJUSTING THE CHAIN TENSION

See Figures 52, 53 and 54.

WARNING:

Never touch or adjust the chain while the motor is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain.

1.Stop the engine before setting the chain tension.

2.Make sure the guide bar nuts are loosened to finger-tight and turn the chain tensioner clockwise to tension

the chain.

NOTE: A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug and it can be turned by hand without binding.

3.Re-tension the chain whenever the flats on the drive links hang out of the bar groove.

NOTE: During normal saw operation, the temperature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately 1.25 mm (0.050 in.) out of the bar groove. To help determine the correct warm chain tension, the tip of the combination wrench can be used as a guide.

NOTE: New chain tends to stretch. Check the chain tension frequently and tension as required.

CAUTION:

A chain tensioned while warm may be too tight on cooling. Check the “cold tension” before next use.

FLATS ON DRIVE LINKS

Fig. 52

APPROXIMATELY 1.25 mm (0.050 in.) Fig. 53

APPROXIMATELY 1.25 mm (0.050 in.)

Fig. 54

CHAIN MAINTENANCE

CAUTION:

Check that the switch is in the STOP “” position before working on the saw.

Use only a low-kick-back chain on this saw. This fast-cutting chain provides kick-back reduction when properly maintained.

For smooth and fast cutting, maintain the chain properly.

The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:

Improper filing angle of the side plate increases the risk of a severe kick-back.

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