Optimum OPTIdrill B 34H Betriebsanleitung Seite 118

Malfunction
Spindle bearing overheating
Working spindle rattling on rough
piece surfaces
GB B34H | B34HV
118
Cause/
possible effects
• Bearing worn down
• Bearing pretension is too high
• Working at high drilling speed over
a longer period of time.
• Excessive slack in bearing
• Working spindle moves up and
down
• Adjustment strip loose
• Clamping chuck is loose
• Tool is blunt
• Workpiece is loose
Translation of the original instructions
Solution
• Replace
• Increase bearing clearance for fixed
bearing (taper roller bearing)
• Reduce drill speed and feed rate
• Reduce bearing clearance or
replace bearing
• Readjust bearing clearance (fixed
bearing)
• Adjust strip to the correct slack
using the adjusting screw
• Check, re-tighten.
• Sharpen or replace tool
• Clamp the workpiece firmly.
Version 1.1.3 - 2020-07-21
Malfunctions