OPTIMUM
M A S C H I N E N - G E R M A N Y
Troubleshooting
Version 1.0.3 dated July 22, 2014
Page 65
Original operating instructions
B30 VGM
US
8
Troubleshooting
Problem
Cause/possible effects
Solution
Noise during work
•
Spindle turning dry
•
Tool dull or incorrectly secured
•
Grease spindle
•
Use new tool and check securing
(fixed setting of the bit, bit holder and
chuck).
Bit „burnt“
•
Incorrect speed/feed too fast
•
The chips have not been removed
from the bore hole
•
Bit dull
•
Operating without or too little cooling
agent
•
Select another rate
•
Extract bit more often during work
•
Sharpen or replace bit
•
Use cooling agent
Bit tip moves, bore hole is not
circular
•
Hard material in the workpiece
•
Unequal length of the cutting spiral or
angles in the bit
•
Bit deformed
•
Replace bit
Defective bit
•
Not support used
•
Place a wooden board beneath the
workpiece and secure them one
another
Bit running off-centre or „hop-
ping“
•
Bit deformed
•
Bearings worn down in the spindle
head
•
Bit badly secured
•
Drill chuck defective
•
Replace bit
•
Have the bearings replaced
•
Secure the bit properly
•
Replace the drill chuck
Impossible to mount drill chuck
or morse taper
•
There is dirt, grease or oil on the
inner conical surface or the drill
chuck or on the conical surface of the
drill spindle
•
Clean surfaces well
•
Keep surfaces free of grease
Motor does not start
•
Motor connected incorrect
•
Defective fuse
•
Have it checked by authorized per-
sonnel
Overheating of motor and lack
of power
•
Motor overloaded
•
Insufficient mains voltage
•
Motor connected wrongly
•
Disconnect immediately and have it
checked by authorized personnel
•
Have it checked by authorized per-
sonnel
Precision of the work deficient
•
Heavy and unbalanced or twisted
workpiece.
•
Inexact horizontal position of the
workpiece holder
•
Balance the piece statically and
secure without straining
•
Adjust workpiece holder
Drill spindle does not return to
its initial position
•
Spindle restoring spring does not
work properly
•
Locking pin is being introduced
•
Check spindle restoring spring,
replace it, if necessary
•
Pull out locking pin
The drill spindle may not be
moved downwards.
•
The locking pin is introduced
•
The drill depth setting is not released
•
Pull out the locking pin
•
Release the drill depth setting
Spindle bearing overheating
•
Bearing worn down
•
Excessive pre-tension of the bearing
•
Working at high speeds for a long
time
•
Replace
•
Reduce bearing clearance in the
fixed bearing
•
Reduce feed rate
