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. Mount the guide bar. Mount the slotted end of the
guide bar overthe bar studs and the hole under the
slot on the adjusting pin. Figure 7.
4. Holdchain with cutters facing asshown in Figure8.
.
,
Place chain over and behind the clutch drum onto
the sprocket and fit the bottom of the drive links
between the teeth in the sprocket.
Start atthetop ofthe bar and fit the chain drive links
into the groove around the guide bar. Figure 8.
SLOT
BAR MOU_
STUDS
iiiil,,,,,i
WRITING
RIGHT SlOE UP
HOLE ON ADJUSTING PIN
Figure 7
.
,
Turnthe adjusting screw clockwise _ until the
chain is snug in the guide bar groove. Figure 9.
Install the bar clamp, replace the bar mounhng
nuts, then tighten the nuts finger tight only
9. Follow "Chain Tension" instructions below.
i,,i i iii
Figure8
D. CHAIN TENSION
• Correct chain tension is very important:
--a loose chain will wear the bar and itself.
--aloosechain canjumpoff the bar while
you are cutting.
-- a tight chain can damage the saw andlor
break.
• The chain stretches during use, especially
when new. Check tension:
-- each time the saw is used
-- more frequently when the chain isnew
as the chain warms up to normal operating
temperature
• Chain tension is correct when the chain:
-- can be lifted about 1/8" from the guide bar at
a point near the middle of the bar, and
-- will move freely around the bar.
iiiii i
TO TIGHTEN ._i
7
if'__ _ TO LOOSEN
/ _ TENSION
m . ii i [11 i
Figure 9
• Chain tensioning procedure:
NOTE: The bar clamp nuts must be no more than
finger tight to tension the chain correctly.
1. Hold thetip ofthe guide bar up and turn the adjusting
screw just until the chain does not sag beneath the
guide bar.Figure 11.
NOTE:Turn screw clockwise _ to tighten tension.
Turnscrew counterclockwise A---to loosen tension.
2 Check the tension by lifting the chain from the guide
bar atthe center of the bar. Figure 12.
3. Continue turning the adjusting screw until the tension
is correct.
4. Hold the tip of the guide bar up and securely tighten
the bar clamp nuts with the scrench.
5. Recheck tension. See Figure 10.
CHAIN CAN BE _1
LIFTED !18" AT _- t O_'_""¥'x'._-.O-_
CENTER OF BAR A(" | - // - --
WHEN TENSION /_ ! _-_../_ 1/8"
IS CORRECT. _ _
..... 1/8"_,L.'_
Figure 10