OPTIMUM
Anomalies
M A S C H I N E N - G E R M A N Y
7
Anomalies
7.1
Anomalies in the drilling-milling machine
Problem
Cause/
Solution
possible effects
drilling-milling machine
•
Start sequence not followed.
•
„Starting the drilling-milling
does not start
machine“ on page 23
• Have it checked by authorised per-
sonnel.
Tool „burn“.
•
Incorrect speed.
•
Select another speed, feed too
•
The chips have not been removed
high.
•
Retract tool more often
from the bore hole.
•
Tool blunt.
•
Sharpen and replace tool.
• Operating without cooling agent.
•
Use coolant.
Impossible to insert hol-
•
Remove any dirt, grease or oil
•
Clean surfaces well.
ding taper into the spindle
from the internal conical surface of
Keep surfaces free of grease.
sleeve.
the spindle sleeve or the holding
taper.
Taper cannot be squee-
•
Optional MT 3 taper seat shrinked
•
Have the machine heat-up at high-
zed out
on morse cone.
est speed for about two minutes
and then try again to disassemble
the taper.
Motor does not start
•
Defective fuse
•
Have it checked by authorised per-
sonnel.
Working spindle rattling on
•
Climb milling machining not possi-
•
Perform conventional milling
rough workpiece surface
ble under the current operating
machining.
conditions.
•
Clamping lever of the movement
•
Tighten clamping lever
axes not tightened.
•
Loose collet chuck, loose drill
•
Check, re-tighten.
chuck, loose draw-in rod
•
Tool blunt.
•
Sharpen or replace tool
•
Workpiece is not fixed.
•
Secure the workpiece properly.
•
Excessive slack in bearing.
•
Readjust bearing slack or replace
•
Working spindle goes up and
bearing.
•
Readjust bearing slack or replace
down.
bearing.
Fine feed of spindle
•
Fine feed is not correctly activated
•
„Manual spindle sleeve feed
sleeve does not work
•
with the fine feed“ on page 27
• Clutch of the fine feed does not
Clean, replace
engage, is dirty, smeared, worn or
defective
Page 52
Drilling-Milling machine
BF 30 Vario
Version 1.0.3
Stand 16 / 09 / 2008
2008
GB
