Service And Adjustments; Idle Speed Adjustment - Poulan Pro PP25CFA Manuel D'instructions

LINE REPLACEMENT
For unit to operate properly, the cutting line
should be replaced when line becomes worn to
less than 3 inches (7.5 cm) in length from the
edge of the line exit tunnels on each side of the
cutting head.
1. Remove and discard worn line before
installing new line.
2. Use only 0.115 inch (3 mm) diameter
Poulan PRO brand cut length line.
3. Insert one end of the line through the
positioning tunnel.
4. Continue to feed line through tunnel until
line is centered (leaving equal amounts
on each side). See illustration below.
Positioning
tunnel
5. Insert ends of line one at a time through
the line exit tunnels.
6. Pull the line and make sure the line is ex-
tended fully through the tunnels.
Line exit
tunnel
7. Correctly installed line will be the same
length on both ends.
REPLACING THE TRIMMER HEAD
(Model PP25CFA)
1. Hold the dust cup with a wrench to keep
the shaft from turning while removing and
installing trimmer head.
Dust Cup
2. Remove trimmer head by turning counter-
clockwise (looking from bottom of unit).

SERVICE AND ADJUSTMENTS

Line exit
tunnel
3. Thread replacement trimmer head onto the
shaft by turning clockwise. Only tighten
hand tight!
REPLACING THE TRIMMER HEAD
(Models PP25SFA)
1. Align hole in the dust cup with the hole in the
side of the gearbox by rotating the dust cup.
2. Insert a small screwdriver into aligned
holes. This will keep the shaft from turning
while removing and installing trimmer head.
Screwdriver
3. While holding the screwdriver in position,
remove trimmer head by turning clockwise
(looking from bottom of unit).
4. Thread replacement trimmer head onto the
shaft by turning counterclockwise. Tighten
until secure.
5. Remove the screwdriver.

IDLE SPEED ADJUSTMENT

WARNING:
making idle speed adjustments. The trimmer
head or any optional attachment will be spin-
ning during most of this procedure. Wear your
protective equipment and observe all safety
precautions. After making adjustments, the
trimmer head or any optional attachment
must not move/spin at idle speed.
The carburetor has been carefully set at the
factory. Adjustment of the idle speed may be
necessary if you notice any of the following
conditions:
S Engine will not idle when the throttle is
released.
S The trimmer head or
attachment moves/spins at idle.
Make adjustments with the unit supported so
the cutting attachment is off the ground and
will not make contact with any object. Hold
the unit by hand while running and making ad-
justments. Keep all parts of your body away
from the cutting attachment and muffler.
To adjust idle speed:
Allow engine to idle. Adjust speed until engine
runs without trimmer head or any optional at-
tachment moving or spinning (idle too fast) or
engine stalling (idle speed too slow).
S Turn idle speed screw clockwise to
increase engine speed if engine stalls or
dies.
S Turn idle speed screw counterclockwise to
decrease engine speed if trimmer head or
any optional attachment moves or spins at
idle.
15
Keep others away when
any optional