Sears 358.356090-3.7/20" Chainsaw User Manual


 
5. BUCKING w USING A STAND (Figure 35):
a.
InareaA:
1.) Undercut 1/3 of the way through the log.
2.) Finish with an overcut.
Inarea B:
1.) Overcut 1/3 of theway through the log.
2,) Finish with an undercut.
D. DEBRANCHING ANDPRUNING II,:.i:
Work slowly, keeping both hands on the saw
=with a firm grip. Maintain secure footing and bal-
ance,
Watch out for springpoles. Use extreme caution
............................................=when-cutting-smalt-size-timbs:--SlendeF_materiat .......................
may catch the saw chain andbe whipped toward
' - you or,pult you off balance. ' ,
eBe alert for sPringback. Watch.out for branches
that are bent or under pressure as youare cutting
to avoid being struck by the branch or the saw when
the tension in the wood fibers is released,
Keep a clear work area. Frequently clear bran-
chesout of theway to avoidtripping over them.
1. DEBRANCHING
Limit debranching to limbs shoulder
height or below. Always debranch a tree
, 'after itisCut down. Only then can debranching
bedone safely and properly.
b. Leave the larger lower limbs to support the
_ :tree asyou work:
c. Start at the base of the felled tree and work
towards the top,_ cutting branches and
, . _ . :limbs. Remove small timbswith one cut. Fig-
= ure36.
d. Keep the tree between you and the chain.
Cut _from .the side of the tree opposite the
branch youare cutting. ,=
eo Remove larger, supporting branches with
the1!3, 2/3 cutting techniques described in
.... the bucking section. = =
...... 1.) Start with an overcut
2,) Finish with an overcut
f. Always =use an overcut to cut small and
freely hanging limbs. Undercutting could
.... cause imbs to fall and pinc h the saw.
2ND CUT 1ST CUT 2ND CUT
CUT CUT
FIRST
CUT
Figure 35
WARNING!
Never climb int0a tree to debranch or prune_ Do
not stand on ladders, platforms, a log or inany
positionwhich might cause you to Jose control of
.....the-saw; ................................................................................................................................................._-"_...............................................
2. PRUNING
" a. Limit pruning to limbs shoulder height or
:.... below. Do not cut ifbranches are higherthan
your shoulder. Get a professional to do the
ijob_ :
b. Refer to Figure 37 for the pruning tech-
nique.
_: 1,) Undercut 1/3 of the waythrough the limb
: near the trunk ofthe tree.
2.) Finish with an 0vercut farther Outfrom the
' trunk. : : _ .... '_:
3.) Keep out of the way of the fall!ng limb.
4.) Cut thestump flush near the trunk of the
tree. ' ' :: ' ": ....
USE COMMONSENSE_ :
..... Remove smaii limbs
with one cut,.
Figure36
IJl SECONOPRUNINGCUT
THIRD
PRUNINGCUT
FIRST PRUNING CUT
Figure 37
WARNING!
BE ALERT FOR AND GUARD AGAINST
KICKBACK. Do not allow the moving chain to con-
tact any other branches or objects atthe nose of
the guide bar, when debranching or,pruning. Al-
lowing such contact could result in serious per-
sonal injury.
.......................... 17
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