Poulan Pro PP4620AV Instruction Manual page 7

Location ofshipping spacer
a_ Chain Brake
Ch Nuts
Bar Tool
3. Turn a djusting screw o nbar c ounter-
clockwise tomove the t ensioning rack as
far a s itwill go toward the front of t he bar
Tensioning Rac_k _
4. Slide the b ar behind clutch drum until bar
stops against clutch drum sprocket.
5. Prepare the c hain by checking the proper
direction. Without following the i llustra_on it
is easy to place the c hain on the s aw inthe
wrongdirect_on. Use t he i llustration ofthe
chain todetermine the proper direction.
DIIRECTiON OF ROTATION
Cutters Depth Gauge
_Drive Links
/
6. PIace the chain over and behind the
clutch, fitting the drive Iinks in the clutch
drum sprocket
Place chain onto the 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 in to bar groove.
9 Pull the bar forward until the chain is
snug in the groove of the bar. Ensure nil
drive links are in the bar groove.
10 Hold guide bar against the saw frame
and install the chain brake.
11. Repiace the chain brake nuts and tighten
finger tight. Once the chain is ten-
sioned, you will need to tighten chain bra-
ke nuts
CHAIN TENSION (Including units with
chain already installed)
NOTE: When adjusting chain tension,
make sure the chain brake nuts are finger
tight oniy. Attempting to tension the chain
when the chain brake nuts are tight can
cause damage.
Checking the tension:
Use the screwdriver end of the chain adjust-
merit tool (bar tooI) to move the chain around
the bar. If the chain does not rotate, it is too
tight. If too loose, the chain will sag below the
bar.
Chain Brake Nuts Tool (Bar Tool)
Adjusting the tension:
Chain tension _s 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
An adjusting screw (located on the guide
bar) is used to adjust the tens ion of the chain
(see illustration).
• Loosen the chain brake nuts.
• Turn adjusting screw clockwise until chain
solidly contacts bottom of guide bar rail.
I I Guide bar
• Using the screwdriver end of the bar tool,
roll chain around guide bar to ensure a_l
_inks are in bar groove.