Manual McCulloch M4620 (page 11 of 19) (English, French, Portuguese, Spanish)

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Notch

First cut

Second cut

Final cut here. 5 cm above

center of notch.

5cm

S After removing the wood from the notch,

make the felling cut on the opposite side of

the notch. This is done by making a cut about

two inches higher than the center of the

notch. This will leave enough uncut wood be-

tween the felling cut and the notch to form a

hinge. This hinge will help prevent the tree

from falling in the wrong direction.

Opening

of felling

cut

Closing

of notch

Hinge holds tree on stump and helps

control fall

NOTE: Before felling cut is complete, use

wedges to open the cut when necessary to

controlthedirectionoffall. To avoidkickback

or chain damage, use wood or plastic

wedges, but never steel or iron wedges.

S Be alert to signs that the tree is ready to f all:

cracking sounds, widening of the felling cut,

or movement in the upper branches.

S As tree starts to fall, stop saw, put it down,

and get away quickly on your planned re-

treat path.

S DO NOT cut down a partially fallen tree with

your saw . Be extremely cautious with par-

tially fallen trees that may be poorly sup-

ported. When a tree doesn’t fall completely ,

set t he saw aside and pull down the tree with

a cable winch, block and tackle, or tractor.

CUTTING A FALLEN TREE

(BUCKING)

Bucking is the t erm used for cutting a fallen

tree to the desired log length.

WARNING: Do not stand on the log

being cut. Any portion can roll causing loss

of f ooting and control. D o not stand downhill

of the log being cut.

Important points

S Cut only one log at a time.

S Cut shattered wood very carefully; sharp

pieces of woodcould beflung toward oper-

ator.

S Use a sawhorse to cut small logs. Never

allow another person to hold the log while

cutting and never hold the log w ith your leg

or foot.

S Do not cut in an area where logs, limbs,

and roots are tangled. Drag t he logs into a

clear ar ea before c utting by pulling out ex-

posed and cleared logs first.

TYPES OF CUTTING USED FOR

BUCKING

WARNING: If saw becomes pinched

or hung in a log, don’t try to force it out. You

can lose control of the saw resulting in injury

and/or damage to the saw. Stop th e saw,

drive a wedge of plastic o r wood into the cut

until the saw can be removed easily. Restart

the saw and carefully reenter the cut. Do not

attempt t orestart your saw whenitis pinched

or hung in a log.

Turn saw OFF and use a plastic or

wooden wedge to force cut open.

Overcutting begins onthetop sideof the log

with the saw against the log. When overcut-

ting use light do wnward pressure.

Overcutting Undercutting

Undercutting involves cutting on the under-

side of the log with t op of saw against the log.

When undercutting use light upward pres-

sure. Hold saw firmly and maintain control.

The saw will tend to push back toward you.

WARNING: Never turn saw upside

down to undercut. The saw cannot be con-

trolled in this position.

First cut on p ressure side of log

Second cut

First cut on pressure side of log

Second cut

BUCKING WITHOUT A

SUPPORT

S Overcut through 1/3 of the diameter of the

log.

S Roll the log over and finish with a second

overcut.

S Give special attention to logs under strain

to prevent the saw from pinching. Make

the first cut on the pr essure side to relieve

the stress on t he log.

BUCKING USING A LOG OR SUP-

PORT STAND

S Remember your first cut is always on the

pressure side of the log.

S Your first cut should extend

1/3 of the

diameter of the log.

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McCulloch M4620 Manual

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