Checking Tool Holder Blow-off

50 Hours Operating time

Tool Spindle

The tool holding fixture is cleaned in two stages during the tool change operation:

• The internal cooling lubricant is extracted before the change operation.
• During the tool change, the spindle taper is blown off.

A malfunctioning extraction device is indicated by an increased volume of cooling lubricant being drawn into the tool magazine. Problems with clamping the tool into the tool spindle or reduced machining accuracy indicate inadequate blow-off.

The machining program runs in automatic mode.

Check wither the tool holding fixture is effectively blown off during a tool change cycle.

• Can the airflow be heard?
• Do the contact surfaces of the tool and the tool spindle appear to have been blown free of adhesive cooling lubricant?

In the absence of an air flow, check air supply to the tool spindle.

For procedure see:

"Inspection of fluid equipment"