Operating Tips; Tree Felling Techniques - Poulan Pro PP5020AV Manuel D'instructions

choke/fast idle lever in completely (to the OFF
CHOKE position) and then following the warm en-
gine starting procedure listed above. Ensure the
ON/STOP switch is in the ON position. Starting
could require pulling the starter rope handle many
times depending on how badly the unit is flooded.
If engine fails to start, refer to the TROUBLE-
SHOOTING TABLE or call 1-800-554-6723.
CHAIN BRAKE
WARNING:
too thin it may break when the chain brake is trig-
gered. With a broken brake band, the chain brake
will not stop the chain. The chain brake should be
replaced by an authorized service dealer if any
part is worn to less than 0.020" (0.5 mm) thick.
Repairs on a chain brake should be made by an
authorized service dealer. Take your unit to the
place of purchase if purchased from a servicing
dealer, or to the nearest authorized master ser-
vice dealer.
S This saw is equipped with a chain brake. The
brake is designed to stop the chain if
kickback occurs.
S The inertia- -activated
activated if the front hand guard is pushed
forward, either manually (by hand) or
automatically (by sudden movement).
S If the brake is already activated, it is
disengaged by pulling the front hand guard
back toward the front handle as far as
possible.
S When cutting with the saw, the chain brake
must be disengaged.
Disengaged
Braking function control
CAUTION:
The chain brake must be
checked several times daily. The engine must
be running when performing this procedure.
This is the only instance when the saw should
be placed on the ground with the engine run-
ning.
Place the saw on firm ground. Grip the rear
handle with your right hand and the front handle
with your left hand. Apply full throttle by fully
depressing the throttle trigger. Activate the
chain brake by turning your left wrist against
the hand guard without releasing your grip
around the front handle. The chain should stop
immediately.

OPERATING TIPS

S Check chain tension before first use, after 1
minute of operation, and each time before
you start the chain saw. See CHAIN TEN-
SION in the ASSEMBLY section.
S Cut wood only. Do not cut metal, plastics, ma-
sonry, non-wood building materials, etc.
S Stop the saw if the chain strikes a foreign ob-
ject. Inspect the saw and repair or replace
parts as necessary. If the chain jumps off the
guide bar, inspect the chain for damaged
drive links before reinstalling. Burrs on drive
links, which prevent them from entering the
groove of the guide bar, can be removed with
a flat file.
If the brake band is worn
chain brake
Engaged
S Keep the chain out of dirt and sand. Even a
small amount of dirt will dull a chain, increase
the possibility of kickback, and require chain
sharpening or replacement.
S Practice cutting a few small logs using the
following techniques to get the "feel" of using
your saw before you begin a major sawing
operation.
S Squeeze the throttle trigger and allow the
engine to reach full speed before cutting.
S Begin cutting with the saw frame against
the log.
S Keep the engine at full speed the entire
time you are cutting.
S Allow the chain to cut for you. Exert only
light downward pressure. If you force the
cut, damage to the bar, chain, or engine
can result.
S Release the throttle trigger as soon as the
cut is completed, allowing the engine to
idle. If you run the saw at full throttle with-
out a cutting load, unnecessary wear can
occur to the chain, bar, and engine. It is
recommended that the engine not be
operated for longer than 30 seconds at
is
full throttle.
S To avoid losing control when cut is com-
plete, do not put pressure on saw at end
of cut.
S Stop the engine before setting the saw down
after cutting.

TREE FELLING TECHNIQUES

WARNING:
branches which can fall while cutting causing
serious injury. Do not cut near buildings or
electrical wires if you do not know the direction
of tree fall, nor cut at night since you will not be
ale to see well, nor during bad weather such as
rain, snow, or strong winds, etc. If the tree
makes contact with any utility line, the utility
company should be notified immediately.
S Carefully plan your sawing operation in ad-
vance.
S Clear the work area. You need a clear area all
around the tree so you can have secure foot-
ing.
S The chain saw operator should keep on the
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
S Study the natural conditions that can cause the
tree to fall in a particular direction.
Natural conditions that can cause a tree to fall
in a particular direction include:
S The wind direction and speed.
S The lean of the tree. The lean of a tree might
not be apparent due to uneven or sloping ter-
rain. Use a plumb or level to determine the
direction of tree lean.
S Weight and branches on one side.
S Surrounding trees and obstacles.
Look for decay and rot. If the trunk is rotted, it
can snap and fall toward the operator. Check
for broken or dead branches which can fall on
you while cutting.
Make sure there is enough room for the tree to
fall. Maintain a distance of
the nearest person or other objects. Engine noise
can drown out a warning call.
Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where cuts are to be
made. Plan a clear retreat path to the rear and
diagonal to the line of fall.
11
Check for broken or dead
tree lengths from
2-1/2