Kickback And Lock-In - Wacker Neuson BTS Series Operator's Manual

Safety precautions
4.7

Kickback and lock-in

4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
SV00068GB
There is a danger of kickback and lock-in. When working with the cut-
off saw.
15
Kickback occurs when the top of the cutting blade is used for cutting
(15).
This causes the cut-off saw to be thrown back toward the user with
great force and out of control. Risk of injury!
To prevent kickback, observe the following:
Never cut with the section of the cutting blade shown in figure 15.
Be especially careful when reinserting the disc into cuts that have
already been started!
Lock-in occurs when the cut narrows (crack, or workpiece under
stress).
This causes the cut-off saw to suddenly jump forward, out of control
and with great force. Risk of injury!
To prevent lock-in, observe the following:
When reinserting the disc into previous cuts, have the cut-off saw
running at top speed. Always cut at top speed.
16
Always support the workpiece so that the cut is under pulling tension
(16), so that the cut does not press together and jam the cutting blade
as it proceeds through the material.
22