Chain Maintenance - Homelite UT43100 Operator's Manual

 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.
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.
CAUTION:
A chain tensioned while warm may be too tight
upon cooling. Check the "cold tension" before
next use.

CHAIN MAINTENANCE

See Figures 36 - 37.
CAUTION:
Make sure the chain saw is disconnected
from the power supply before you work on the
saw.
Use only a low-kickback chain on this saw. This
fast- cutting chain provides kickback 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:
MAINTENANCE
 Improper filing angle of the side plate can
increase the risk of severe kickback.
 Raker (depth gauge) clearance.
• Too low increases the potential for kick-
back.
• Not low enough decreases cutting ability.
 If the cutter teeth hit hard objects such as nails
and stones, or are abraded by mud or sand on
the wood, have an authorized service center
sharpen the chain.
NOTE: Inspect the drive sprocket for wear or
damage when replacing the chain. If signs of
wear or damage are present in the areas indi-
cated, have the drive sprocket replaced by an
authorized service center.
NOTE: If you do not fully understand the correct
procedure for sharpening the chain after reading the
instructions that follow, have the saw chain sharp-
ened by an authorized service center or replace
with a recommended low-kickback chain.
Page 24 — English
raker (dePtH gaUge) clearance
inSPect drive SProcket
.025 in.
Fig. 36
Fig. 37