Unibor EQ35 Manual
Original instructions
Apr 2020
16
15) TROUBLE SHOOTING
Magnet and motor do not function
- The magnet switch is not connected to the power supply
- Damaged or defective wiring
- Defective magnet switch
- Defective control unit
- Defective power supply
Magnet does function, the motor does not
- Damaged or defective wiring
- Carbon brushes are stuck or worn out
- Defective magnet switch
- Defective on / off switch
- Defective control unit
- Defective armature and/or field
Magnet does not function, the motor does
- Defective magnet
- Defective control unit
Hole cutters break quickly, holes are bigger
than the hole cutter
- Play in the guide
- Bent spindle
- Shaft extending from the motor is bent
- Pilot bent
Motor running roughly and/or seizing up
- Bent spindle
- Shaft extending from the motor is bent
- Triangular guide not mounted straight
Motor making a rattling sound
- Gear ring (bottom of the armature) worn out
- Gear(s) worn out
- No grease in gear box
Motor humming, big sparks and motor has no
force
- Armature damaged
- Field burned
- Carbon brushes worn out
Motor does not start or fails.
- Damaged or defective wiring
- Damage to armature or field coil
- Damaged or defective brushes
Insufficient magnetic force
- Damaged or defective wiring
- Bottom of magnet not clean and dry
- Bottom of magnet not flat
- Work piece is not bare metal
- Work piece is not flat
- Work piece is too thin less than 10mm
- Defective control unit
- Defective magnet
Frame under voltage
- Damaged / defective wiring
- Defective magnet
- Motor seriously dirty
Fuse blows when magnet switch is turned on
- Damaged or defective wiring
- Wrong value fuse
- Defective magnet switch
- Defective control unit
- Defective magnet
Fuse blows when motor is started up
- Damaged or defective wiring
- Motor running roughly
- Defective armature and / or field
- Carbon brushes worn out
- Defective control unit
Rotation system free stroke too long
- Loose or defective gear-rack
- Defective rotation system
