Malfunctions; Milling Machine Malfunctions - Optimum OPTImill MH 22V Operating Manual

7

Malfunctions

7.1

Milling machine malfunctions

Malfunction
Tool "burnt".
Taper cannot be inserted in
quill.
Motor does not start.
Rattle the spindle if the
workpiece surface is rough.
Fine feed of the spindle
sleeve does not work
EN
MH22V│MH22VD
62
Cause/
possible effects
• Incorrect speed.
• Chips are not coming out of the
drilled hole.
• Blunt tool.
• Operating without cooling agent.
• Remove any dirt, grease or oil
from the internal conical surface of
the spindle sleeve or the taper.
• Defective fuse.
• Circuit breaker
• Upcut mill machining not possible
under the current operating condi-
tions.
• Clamping lever of the movement
axes not tightened.
• Tool is blunt.
• The workpiece is not fastened.
• Excessive slack in bearing.
• Spindle moves up and down.
• Fine feed is not correctly activated.
• Coupling of the fine feed does not
cam-in, is soiled, blurred, worn,
defective
Translation of original instruction
Solution
• Choose a different speed, excessive
feed.
• Withdraw the tool more frequently.
• Sharpen or replace tool.
• Use coolant.
• Clean surfaces well.
Keep surfaces free from grease.

Spindle seat on page 17
• Have it checked by qualified personnel.
• Perform conventional milling.
• Tighten the clamping lever.
• Sharpen or renew the tool.
• Clamp the workpiece firmly.
• Readjust the bearing slack or replace
the bearing.
• Readjust the bearing slack or replace
the bearing.

• Spindle quill feed on page 30
• Clean, replace.
Version 1.0.4 - 2020-07-28