15
Cutting Guidance
Warning
Danger
The front part or top end of the guide plate must not
contact with any object during operation of the engine,
so as to avoid bounce.
In any case, the chain saw must be operated by one person. The
operator cannot ensure the safety during the first operations,
therefore, it is preferable to appoint an assistant. After you
master the basic skills of operation, the best assistant is good
response capability.
The best way to control the chain saw is to stand on the left side of
the chain saw and hold the carrying handle with the left hand. Thus
the throttle can be controlled with the fingers of the right hand.
Before cutting large trees, fully get familiar with the control
operations and corresponding responses of the chain saw, and cut
small logs or large branches. Start the engine and check whether
the engine rotates normally. Press the throttle to accelerate the
chain saw and start cutting. The throttle must not be pressed
excessively. If the edge is sharp, cutting can be done efficiently.
If the saw pushing force is too large, the engine speed will be
reduced, and the smoothness of actual cutting will be affected.
Some materials (such as palm acid, fertilizer, etc.) are not
favorable for the shell of the chain saw. In order to prevent the
shell of the chain saw from damage, debris such as sawdust on
the clutch and guide plate must be cleared, and the clutch and
guide plate must be cleaned.
Tree cutting
Fallen trees may cause serious damage to any object, such as
cars, houses, fences, power lines or other trees.
• You can control the falling
direction of trees. However, you
must determine the location of
fallen tree.
• Clean debris around trees before
cutting.
•
You should select a good standing place to avoid any
obstacle during cutting.
•
Then select the retreat route.
•
When the tree starts falling down, you must move back 3m
with a 45-degree angle relative to the opposite direction of
tree falling, so as to avoid bounce of the fallen tree.
Gap
1/3 of diameter
2.5-5cm
A
1/10 of tree diameter
•
First saw the tree in the falling direction.
•
Form a gap of approximate 1/3 of the tree diameter.
•
Then saw the tree in the opposite direction of the gap to
make the tree fall.
•
Place the nail-shaped iron stopper at 2.5 - 5cm above the
bottom of the gap. When the sawing place is about 1/10 the
tree diameter away from the gap bottom, stop sawing. The
left part is used like a hinge.
•
Do not saw through the tree in the falling direction to the gap.
•
The part between the gap and the sawed section in the
falling direction is used like a hinge, so that the tree can
fall in the determined direction.
•
When the tree starts falling, stop the engine, place the saw
on the ground and rapidly retreat along the determined route.
Sawing in the
falling direction
Wooden wedge
Saw operation
way
Gap sawing
1
5
4
3
2
•
If the diameter of the tree to be sawed is more than twice
of the length of the guide plate, first cut the gas on one
side and then saw to the other side along the gap. The gap
depth should be approximately 1/3 of the tree diameter.
Tree falling direction
