14 ► CS05/CS06 User Manual
OPERATION
FELLING OR BACK CUT
4.  The felling or back cut is made on the side opposite 
and at least 2 inches above the hori zontal undercut 
(the felling cut is made higher as the size of the tree 
increases). Place the saw so the hand guard is close 
to the tree trunk and the bucking cleat is dug in.
5.  Start the cut horizontally. Pivot the bar in until the cut 
is being made parallel to the notch cut. Cut until the 
saw is about 1 or 2 inches from the notch. Do not cut 
through the notch.
NOTE: 
The uncut wood between the felling and notch cuts 
is called the hinge. The hinge controls the fall of the 
tree and should be of uniform thick ness.
6.  As  the  saw  nears  the  back  cut,  watch  the  treetop 
and the cut for signs of movement. Be alert as soon 
as  the  tree  starts to  move, turn  off the  saw, pull  it 
from  the  tree  and  move  away  quickly  on  your  es-
cape route.
7.  For  trees  larger  than  bar  length,  make  two  felling 
cuts.  Cut  in  as far  as  the  bar  will go,  move  to the 
other side and start the second cut in the same man-
ner as  the rst while  pivoting the  saw to complete 
the felling cut.
BUCKING
Bucking is the sawing of a log or fallen tree into smaller 
pieces.
1.  Observe all safety precautions.
2.  Use both hands. Grip the saw rmly.
3.  Stand uphill. A log that is cut loose may role down-
hill.
4.  Keep the chain out of the dirt. Dirt will dull the chain. 
A dull chain is unsafe.
5.  Stand to the left of the saw.
CROSSCUTTING
NOTE: 
Before starting to cut through a log try to imagine 
what is going to happen. Look out for stresses in the 
log and cut through the log in such a manner that 
the guide bar will not get pinched.
6.  The  saw  chain  should  cut  with  very  little  pres sure 
applied to the handle. If you have to force the saw to 
cut or if the cut is not straight, cease cutting immedi-
ately to prevent further saw chain and bar damage. 
See  the  Maintenance  and  Adjustments  section  of 
the Service Manual for chain replacement or adjust-
ment procedures.
7.  Underwater models require daily preventive mainte-
nance. See the Maintenance and Adjust ments sec-
tion  of  the  Service  Manual  for  these  mainte nance 
procedures.
FELLING (CUTTING DOWN A TREE) 
(FIGURE 2)
Observe all safety precautions. 
Figure 2. Felling a Tree
NOTCHING OR UNDERCUTTING
1.  The notching or undercutting cut is made on the side 
you want the tree to fall. Place the saw so the hand 
guard is close to the tree trunk and the bucking cleat 
is dug in.
2.  Start the cut horizontally. Pivot the nose of the bar in 
last. Cut to about one-quarter of the tree’s diameter.
3. 
WARNING
Watch out for falling limbs.
Make a diagonal cut down to meet the hori zontal cut 
and remove the wood from the notch.