Chain Tension - Poulan Pro PP4620AVX Instruction Manual

1. Loosen and remove bar knob completely
by lifting lever and turning counterclock-
wise.
LOOSEN
2. Remove clutch cover. Remove the plas-
tic shipping spacer (if present).
3. Slide guide bar on bar bolts until guide
bar stops against clutch drum sprocket.
4. Carefully remove the chain from the pack-
age. Hold chain with the drive links as
shown.
CUTTERS MUST FACE IN
DIIRECTION OF ROTATION
Cutters
Drive Links
5. Place chain over and behind clutch re-
tainer, fitting the drive links in the clutch
drum sprocket.
6. Fit bottom of drive links between the
teeth in the sprocket in the nose of the
guide bar.
7. Fit chain drive links into bar groove.
8. Pull guide bar forward until chain is snug
in guide bar groove. Ensure all drive links
are in the bar groove.
9. 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.
Adjusting pin
10. Install bar knob and finger tighten only.
Do not tighten any further at this point.
Once the chain is tensioned, you will
need to tighten the bar knob.

CHAIN TENSION

chain already installed)
NOTE:
make sure the bar knob is loosened 1 ½ - - 2
turns. 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
too loose, the chain will sag below the bar.
Tip of
Bar
Adjusting
wheel
Adjusting the tension:
Depth Gauge
Chain tension is very important. Chain
stretches 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 ½ - - 2 turns to loosen clutch
cover.
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.
7
Back
view of
clutch
cover
(Including units with
When adjusting chain tension,
Guide bar
Screwdriver
Bar knob
LOOSEN