OPERATION
6.The saw chain should cut with very little pressure 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 Adjustments sec- tion of the Service Manual for these maintenance 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
WARNING
Watch out for falling limbs.
3.Make a diagonal cut down to meet the horizontal cut and remove the wood from the notch.
FELLING OR BACK CUT
4.The felling or back cut is made on the side opposite and at least 2 inches above the horizontal 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 thickness.
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 first 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 firmly.
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.
14 ► CS05/CS06 User Manual
