Homelite UT43123 Manuel D'utilisation page 26

 Replace the chain cover lock knob; rotate knob
clockwise to tighten. The bar should still be free
to move for tension adjustment.
 Remove all slack from the chain by turning the
chain tensioning knob clockwise until the chain
seats snugly against the bar with the drive links
in the bar groove.
 Lift the tip of the guide bar up to check for sag.
 Release the tip of the guide bar and turn the
chain tensioning knob 1/2 turn clockwise.
Repeat this process until sag does not exist.
 Hold the tip of the guide bar up and tighten the
chain cover lock knob.
The chain is correctly tensioned when there is no
sag on the underside of the guide bar, the chain is
snug, but it can be turned by hand without binding.
NOTE: If chain is too tight, it will not rotate. Loosen
the chain cover lock knob slightly and turn the
chain tensioning knob 1/4 turn counterclockwise.
Lift the tip of the guide bar up and retighten the
chain cover lock knob. Ensure that the chain will
rotate without binding.
ADJUSTING THE CHAIN TENSION
See Figures 33 - 34.
WARNING:
Stop the motor and disconnect from power
supply. 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. Failure
to follow these instructions can result in serious
personal injury.
 Slightly loosen the chain cover lock knob.
 Turn the chain tensioning knob 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.
 Rotate the chain cover lock knob clockwise to
secure.
Retension the chain whenever the flats on the drive
links hang out of the bar groove.
MAINTENANCE
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.
NOTE: New chains tend to stretch; check
the chain tension frequently and tension as
required.
NOTICE:
A chain tensioned while warm may be too tight
upon cooling. Check the "cold tension" before
next use.
Page 26 — English
FLATS ON DRIVE LINKS
≈
.050 in.
Fig. 31
Fig. 32
Fig. 33
Fig. 34