Malfunctions - Optimum OPTIdrill DM35 Betriebsanleitung

OPTIMUM
M A S C H I N E N - G E R M A N Y
6

Malfunctions

Malfunction
Magnetic base not functioning
Drilling spindle does not
switch on.
Problems on the drive motor
Drill or core hole drill "burnt
up"
Drill tip is running off centre,
the drilled hole is non-round
The drill chuck or the taper
mandrel cannot be inserted.
Drilling feed does not operate
GB
DM35│DM35V│DM35PF│DM36VT│DM38VF│DM50│DM50V│DM50PM│DM60V│DM98V
Page 34
®
Cause/ Possible Effects
• Switch contact faulty.
• The power supply is faulty, plug is
loose.
• Overload, the fuse has blown.
• Short circuit in the electromagnet or
faulty electromagnet.
• Magnetisability of the substrate too
low.
• Conductor plate faulty.
• Electromagnet is not switched on.
• The sensor detects too little magnetic
holding force on the component.
• Switch contact faulty.
• Bad contact of the carbon brush.
• Faulty rotor or stator winding.
• The spark colour on the electric motor
is orange.
• Sparks are flying out.
• Sparks are flying in a ring from fire.
• Feed too fast.
• Chips are not coming out of the drilled
hole.
• Drill blunt.
• No or too little cooling.
• Hard points on the workpiece
• Length of the cutting spirals/or angles
on the tool are unequal
• Drill deformed
• Dirt, grease or oil on the taper inside
of the drill chuck or on the taper sur-
face of the drill spindle
• Positioning the follower in the drill
spindle is not considered
• Feather key sheared from the shaft.
• Transmission for manual feed worn.
Translation of the original instructions
Solution
• Replace the switch.
• Replace the cable and plug.
• Replace the fuse.
Replace or repair the electromag-
net.
• Check the thickness and material
properties of the substrate.
• Replace the conductor plate
• Before switching on the drilling spin-
dle, first switch on the electromag-
net.

• "Magnetic holding force" on
page 26
• Replace the switch.
• Replace the carbon brushes of the
electric motor.
• Completely replace the drilling
head.
• Reduce the drilling feed.
• Please replace the carbon brushes.
• Check whether the rotor or stator
winding is faulty. Motor burnt out.
• Reduce feed.
• Extract drill more often during work.
• Sharpen drill bit/ use a new drill bit.
• Use cooling agent
• Use new drill
• Clean surfaces well
• Keep surfaces free of grease
• Replace key.
• Replace transmission.
Version 1.0.7 dated 2019-09-25