Poulan 3400 - Manual (Page 8)

2. Mount the Guide Bar with the slotted end
over the bar mounting studs. Figure 9 .
NOTE: Be sure the Guide Bar is positioned
with the round hole below the large slot.
3. Hold chain with cutlers facing as shown in
Figure 10.
4. Place chain over and behind the clutch
drum onto the sprocket.
5. Slide Guide Bar to the rear of the saw as far
as possible.
6 . Fit the bottom of the drive links between
the teeth in the sprocket.
7. start at the top of the bar and fit the chain
drive links into the groove around the Guide
Bar. Figure 10.
8 . Pull the Guide Bar forward until the chain is
snug in the guide bar groove. Figure 11.
9. Install the outer guide plate. Figure? .
10. Slide the Bar Clamp over the mounting studs and fit
the bar adjusting pin (Rgure 11 ) into the adjusting pin
hole in the Guide Bar. Figure 9.
11 . Replace the Bar Mounting Nuts and tighten
finger tight only.
NOTE: The Bar Clamp nuts must be slightly
loose to tension the chain correctly.
1 2 . Follow “Chain Tension” instructions below.
Figure 10
D. CHAIN TENSION
• Correct chain tension Is very important:
—a loose chain will wear the bar and itself,
—a loose chain can jump off the bar while
you are cutting.
—a tight chain can damage the saw and/or
break.
• 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.
• The chain stretches during use, especialiy
when new; Check tension:
— each time thè saw is used
— more frequently when the chain is new
— as the chain warms up to normal operating tem­
perature
1. Hold the tip of the Guide Bar up and turn the
Adjusting Screw just until the chain does not
sag beneath the Guide Bar. Rgure 12 .
NOTE: Turn screw clockwise to tighten ten­
sion. Turn screw counterclockwise to loosen
tension.
2. Check the tension by lifting the chain from
the Guide Bar at the center of the bar. Figure
13.
3. Continue turning the Adjusting Screw until
the tension is correct.
4. Hold the tip of the Guide Bar up and tighten
the Bar Clamp Nuts with the Scrench.
5. Recheck tension.
BAR
MOUNTING
STUDS
ADJUSTING
SCREW
TO LOOSEN
TENSION
TURN
TO TIGHTEN
TENSION
Figure 12