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Page 28 — English

MAINTENANCE

FLATS ON DRIVE LINKS

ADJUSTING THE CHAIN TENSION

See Figures 44 - 46.

WARNING:

Never touch or adjust the chain while the engine

is running. The saw chain is very sharp. Always

wear protective gloves when performing main-

tenance on the chain.

Stop the engine before setting the chain tension.

Make sure the bar mounting nuts are loosened

to finger tight.

Turn the chain tensioning screw 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.

Retension the chain whenever the flats on the

drive links hang out of the bar groove.

NOTE: During normal saw operation, the tem-

perature of the chain increases. The drive links

of a correctly tensioned warm chain will hang

approximately .050 in. out of the bar groove.

The tip of the combination wrench can be used

as a guide to help determine the correct warm

chain tension.

NOTE: New chains tend to stretch; check

the chain tension frequently and tension as

required.

CAUTION:

A chain tensioned while warm may be too tight

upon cooling. Check the “cold tension” before

next use.

Fig. 41

Fig. 42

Fig. 43

Fig. 44

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Ryobi RY10520 Betreibershandbuch Seite 28