7 Operation and regulation
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HSD S.p.A. © - h0106k01a.fm120718
7.7 Procedure to follow if the tool becomes jammed
in the piece machining operation in progress
If the machine goes into alarm status or stops with the tool locked on the piece being
machined, do not move the spindle along the Z-axis!
If possible, free the piece by hand and then perform a tool change.
If this is not possible, proceed as follows:
Supply air to the tool change circuit;
Slowly move the spindle away from the piece by moving it along the Z-axis until the collet
opens (sensor S2 output “ON”);
Make sure that the cone has been freed from the collet;
Move the spindle away from the piece machining operation in progress;
Then manually remove the jammed tool.
If this procedure is not followed, the tool holder will drag the locking system (collet/screw dowel)
with it until the cone is released. After which, the collet will move back violently due to the force
exerted by the spring and could cause damage.
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