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OPERATINGTIPS
•Checkchaintensionbeforefirstuse,
after1minuteofoperation,andeach
timebeforeyoustartthechainsaw.
SeeCHAINTENSIONintheMAINTE-
NANCEsection.
•Cutwoodonly.Donotcutmetal,plas-
tics,masonry,non-woodbuildingma-
terials,etc.
•Stopthesawifthechainstrikesa
foreignobject.Inspectthesawand
repairorreplacepartsasnecessary.
Ifthechainjumpsofftheguidebar,
inspectthechainfordamageddrive
linksbeforereinstalling.Burrson
drivelinks,whichpreventthemfrom
enteringthegrooveoftheguidebar,
canberemovedwithaflatfile.
•Keepthechainoutofdirtandsand.
Evenasmallamountofdirtwilldulla
chain,increasethepossibilityofkick-
back,andrequirechainsharpeningor
replacement.
•Practicecuttingafewsmalllogsus-
ingthefollowingtechniquestoget
the"feel"ofusingyoursawbefore
youbeginamajorsawingoperation.
• Squeezethethrottletriggerandal-
lowtheenginetoreachfullspeed
beforecutting.
• Begincuttingwiththesawframe
againstthelog.
• Keeptheengineatfullspeedthe
entiretimeyouarecutting.
• Allowthechaintocutforyou.Ex-
ertonlylightdownwardpressure.
Ifyouforcethecut,damagetothe
bar,chain,orenginecanresult.
• Releasethethrottletriggeras
soonasthecutiscompleted,al-
lowingtheenginetoidle.Ifyou
runthesawatfullthrottlewithout
acuttingload,unnecessarywear
canoccurtothechain,bar,and
engine.To maximize operating
efficiency, do not run the engine
for longer than 30 seconds at a
time at full throttle,
• To avoid losing control when cut is
complete, do not put pressure on
saw at end of cut.
• Stop the engine before setting the
saw down after cutting.
TREE FELLING TECHNIQUES
_IIWARNING: Check for broken or
dead branches which can fall while cut-
ting 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 noti-
fied immediately.
• Carefully plan your sawing operation
in advance.
• Clear the work area. You need a clear
area all around the tree so you can
have secure footing.
• 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.
• Study the natural conditions that can
cause the tree to fall in a particular di-
rection.
Natural conditions that can cause a tree
to fall in a particular direction include:
• The wind direction and speed.
• The lean ofthe tree. The lean of a
tree might not be apparent due to un-
even or sloping terrain. Use a plumb
or level to determine the direction of
tree lean.
• Weight and branches on one side.
• Surrounding trees and obstacles.
Look for decay and rot. Ifthe trunk is
rotted, it can snap and fall toward the
operator. Make sure there is enough
room for the tree to fall. Maintain a dis-
tance of 2-1/2tree lengths from the near-
est 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.
_,X_pt Plan a clear retreat path
I' {,, ,_--_- Direction of Fail
45" /,,,
".,,/._,_
FELLING LARGE TREES
(6 inches (15 cm) in diameter or larger)
The notch method is used to fell large
trees. A notch is cut on the side of the
tree in the desired direction of fall. After
a felling cut is made on the opposite
side of tree, the tree will tend to fall into
the notch.
11
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