Table of Contents
Advertisement
It is extremely important that the brake is checked for proper operation before each use and that the chain is sharp in order to maintain
the correct level of protection against the chainsaw bouncing back. Removing protective devices, improper maintenance, or replacing
the guide bar or chain with the wrong equivalent can increase the risk or cause serious injury.
Typical cases illustrate (Fig. 13).
OPERATION
CUTTING TREES
Before cutting the tree, you must:
Determine the direction of the cut, taking into account the wind, the slope of the tree, the location of heavy branches, ease of
work after felling and other factors (Fig. 14).
By clearing the area around the tree arrange a good escape route.
Make an incision to one-third the depth of the tree (Fig. 15) on the side of the tree where the tree is to be laid.
Make a cut on the opposite side of the cut, at a level slightly higher than the cut.
WARNING!
When cutting down a tree, warn people who may be nearby about potential danger.
CUTTING AND HEWING
Before starting work, assess the direction of the distribution of forces (stresses) inside the entire log. Always end the cut on the
opposite side of the log bending direction to prevent cutting guide jam.
A tree lying on the ground (Fig. 16): Cut down halfway, then turn the log and cut from the other side.
Tree placed on supports (Fig. 17): In area A, cut from the bottom up to one third of the depth and finish cutting from the top
down. In area B, cut from top to bottom to one third of the depth and finish cutting from the bottom up.
Cutting off the branches of a felled tree (Fig. 18): First check which way the branch is bent. Then make the first cut from the
bend side and finish cutting from the other side. If the branch is bent like at (Fig. 18) - cut from the bottom up, finish cutting
from the top down.
Cutting off the branches of a standing tree (Fig. 19).
Attention! First cut the branch down to approximately ½ in diameter, then cut the branch from above.
WARNING!
Always ensure good foot support. Do not stand on tree logs. Watch out for the rolling of the cut log.
Be careful of springing the branch being cut off.
Do not use the saw on an unstable surface or ladder. Do not work with arms outstretched. Do not cut above shoulder height. Always
hold the chain saw with both hands.
MAINTENANCE
The rules for safe maintenance of the device are described in this manual in the section "Maintenance and storage" in the chapter
"Detailed safety rules for petrol saws".
WARNING!
Before cleaning, inspecting or repairing the device, make sure that the engine is switched off and is not hot. Disconnect the spark plug
to prevent the petrol saw from being switched on accidentally.
AIR FILTER CLEANING
A dirty air filter increases fuel consumption and reduces the efficiency of an internal combustion engine. The air filter should be
cleaned as needed, at least every 5 hours of operation of the saw. Sawdust on the filter surface can be removed with a brush. To
clean the filter from the inside, use compressed air.
22
Advertisement
Table of Contents
