Issue 1 Original Version October 2014
18
Magnet and motor do not function
- The magnet switch is not connected to the power supply
- Damaged or defective wiring
- Defective fuse
- 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
- Defective magnet protective switch
Magnet does not function, the motor
does
Hole cutters break quickly, holes are
bigger than the hole cutter
- Bent spindle
- Defective magnet causing movement
- Shaft extending from the motor is bent
- Uneven work surface causing lack of magnetic adhesion.
- Bent pilot
Motor running roughly and/or seizing
up
- Shaft extending from the motor is bent
- Triangular guide not mounted straight
- Dirt between spindle and triangular guide
Motor making a rattling sound
- Gear bearing (bottom of the armature) worn out
- Gear(s) worn out
- No grease in gear box
Motor humming, big sparks and
motor has no force
- Field burned
- Carbon brushes worn out
Motor does not start or fails.
- Damaged or defective wiring
- Dirt in sensor of speed control unit
- Defective speed control unit
- Defective speed control or its wiring
- Defective or loose magnet on top of armature
- Damaged or defective brushes
Guiding takes a great deal of effort
- Guide is dry
- Guide/gear- rack/rotation system dirty or damaged
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
Motor only runs at maximum rpm
- Damaged / defective wiring
- Defective control unit
- Damaged / defective wiring
- Defective magnet
- Motor seriously dirty
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