Version 1.1.4 dated 2015-3-30
Page 72
Original operating instructions
BF46 Vario | BF46TC
US
2
Malfunctions
Malfunction
Cause / possible effects
Solution
The mill drill does not start
•
Power-on sequence ignored.
•
"Switching on the mill drill“ on
page 30 and
"Switching on the
mill drill“ on page 35
•
Have it checked by authorised per-
sonnel.
Tool "burnt".
•
Incorrect speed.
•
Chips do not come out of the bore hole
•
Tool blunt.
Operating without cooling agent.
•
Select another rate, feed too high.
•
Pull out tool more often.
Sharpen or replace tool.
•
Use cooling agent
Impossible to insert grip cone
into the spindle sleeve.
•
Remove any dirt, grease or oil from the
internal conical surface of the spindle
sleeve or the grip cone.
•
Clean surfaces well
Keep surfaces free of grease.
It is not possible to push-out
the taper.
•
Optional MT4 taper is shrinked on the
Morse taper.
•
Let the machine run at highest
speed for two minutes in order to
warm it up and then retry to disas-
semble the taper.
Motor does not start
•
Defective fuse.
•
Have it checked by authorised per-
sonnel.
Working spindle rattling on
rough piece surfaces
•
Climb milling machining not possible
under the current operating conditions.
•
Clamping lever of the movement axes
not tightened.
•
Loose collet chuck, loose drill chuck,
loose draw-in rod.
•
Tool is blunt.
•
The workpiece is not fastened.
•
Excessive slack in bearing.
•
Working spindle goes up and down.
•
Perform conventional milling.
•
Tighten clamping lever
•
Check, re-tighten.
•
Sharpen or replace tool
•
Clamp the workpiece firmly.
•
Readjust bearing slack or replace
bearing
•
Readjust bearing slack or replace
bearing
Fine feed of the spindle sleeve
does not work
•
Fine feed is not correctly activated.
•
Coupling of the fine feed does not cam-
in, is soiled, blurred, worn, defective
•
"Manual spindle sleeve feed
with the fine feed“ on page 41
•
Clean, replace.
Digital display
•
"Malfunctions“ on page 42
