Poulan Pro SM4218AVX - Manual (Page 7)

7
Clutch Cover
Bar
Knob
Location of
shipping
spacer
4. Slide guide bar on bar bolts until guide
bar stops against clutch drum sprocket.
Bar bolts
Guide bar
5. Carefully remove the chain from the pack-
age. Hold chain with the drive links as
shown.
CUTTERS MUST FACE IN
DIIRECTION OF ROTATION
Tip of
Bar
Cutters Depth Gauge
Drive Links
6. Place chain over and behind clutch re-
tainer, fitting the drive links in the clutch
drum sprocket.
7. Fit bottom of drive links between the
teeth in the sprocket in the nose of the
guide bar.
8. Fit chain drive links into bar groove.
9. Pull guide bar forward until chain is snug
in guide bar groove. Ensure all drive
links are in the bar groove.
10. Install clutch cover. Be sure adjusting
pin is in the adjusting pin hole in the
guide bar.
CAUTION: It is very important when instal-
ling the clutch cover that the adjusting pin
aligns into the adjusting pin hole in the bar. Fail-
ure to install the clutch cover correctly may re-
sult in permanent damage to your chain saw.
Back
view of
clutch
cover
Adjusting pin
11. Install bar knob and finger tighten only.
Once the chain is tensioned, you will
need to tighten bar knob.
CHAIN TENSION (Including units
with chain already installed)
WARNING:
Wear protective gloves
when handling chain. The chain is sharp and
can cut you even when it is not moving.
NOTE: When adjusting chain tension,
make sure the bar knob is finger tight only.
Attempting to tension the chain when the bar
knob is tight can cause damage.
Checking the tension:
Use a screwdriver to move chain around
guide bar. If the chain does not rotate, it is too
tight. If the chain is too loose, it will sag below
the bar.
Bar
Knob
Guide
Bar
Adjusting
Wheel
Screwdriver
Adjusting the tension:
Chain tension is very important. Chains stretch
during use. This is especially true during the
first few times you use your saw. Always check
chain tension each time before you start the
chain saw.
1. Lift lever on bar knob and turn counter-
clockwise 1 turn to loosen bar clamp.
LOOSEN
2. Turn adjusting wheel (downward direc-
tion) to tension chain until chain solidly
contacts bottom of guide bar rail. Lift tip
of guide bar while adjusting tension.