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13
Chapter 3: Operating the DR
®
PRO-62V CHAINSAW
It may be helpful to better familiarize yourself with the features of your Chainsaw by reviewing
Figure 2
in Chapter 2 before
beginning the steps outlined in this chapter.
Before Using the Chainsaw
As a Chainsaw user, you should take several steps to keep your cutting jobs free
from accident or injury. You should observe the following precautions before
using the Chainsaw to avoid Kickback:
•
Always grip the Saw firmly with both hands. A firm grip together with a stiff
left arm will help you maintain control of the Saw if Kickback occurs.
•
Make sure that the area in which you are cutting is free from obstructions.
Don’t let the Nose of the Bar contact a log, branch, fence or any other
obstruction that could be hit while you are operating the Saw.
•
Push and Pull - This is a reaction force always opposite to the direction the
Chain is moving where contacting the wood. Thus, the operator must be
ready to control the PULL when cutting on the bottom edge of the Bar, and
PUSH when cutting along the top edge.
Chain Brake Operation
Your DR PRO 62V CHAINSAW is equipped with a Chain Brake that is connected
to the Front Damper to activate under extreme Kickback conditions (
Figure 13
).
In the event of a Chain Kickback, the Saw will rotate back and into your left hand
which will push the Front Damper forward, engaging the Chain Brake.
After the Chain Brake has been activated, you must pull the Front Damper to the
rear to disengage the Brake before using.
You can also engage the Chain Brake to prevent unintentional rotation of the
Chain while transporting the Chainsaw, or switching between cuts. To Engage
the Chain Brake, push the Front Damper forward. To disengage the Chain
Brake, pull the Front Damper back.
Kickback of the Saw is a condition that may occur when the moving Chain
contacts an object at the upper portion of the Tip of the Bar (
Figure 12
) or
when the wood closes in and pinches the Chainsaw in the cut causing the
Chain to stop for an instant. The result is a lightning fast, reverse reaction
that kicks the Bar up and back toward the operator that can cause loss of
Chainsaw control which can result in serious injury. Do not rely exclusively
upon the safety devices built into the Chainsaw
Kick
Back
Zone
Figure 12
Figure 13
Disengage
Engage
Front
Damper