13
H6200B / 42247 Chain Saw
Greenlee Textron / Subsidiary of Textron Inc.
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
Figure 8
Pull-In
Figure 7
Pushback
PULL
PUSH
Operation (cont’d)
Pushback (See Figure 7)
Pushback occurs when the saw chain on the top of
the guide bar is suddenly stopped by being pinched,
caught or encountering a foreign object in the wood.
The reaction of the chain may push the saw violently
straight back towards the operator. Pushback occurs
when the top of the guide bar is used for cutting.
To Avoid Pushback:
1.
Be alert to forces or situations that may cause the
wood to pinch the top of the saw chain.
2.
Cut only one limb at a time.
3.
Do not twist the saw when withdrawing the guide
bar from the cut.
Pull-In (See Figure 8)
Pull-in occurs when the saw chain on the bottom of
the guide bar is suddenly stopped by being pinched,
caught or encountering a foreign object in the wood.
The reaction of the chain may pull the saw violently
forward. Pull-in occurs when the chain is not rotating at
full speed before it contacts the wood.
To Avoid Pull-In:
1.
Always begin and continue the cut at full chain
speed.
2.
Always begin the cut with the front of the saw head
body in contact with the wood.
