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 work
- 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 wiring of magnet
- Defective control unit
Annular cutters break quickly,
holes are bigger than the hole
cutter
- Clearance in the guide
- Bent spindle
- Shaft extending from the motor is bent
- Bent pilot pin
Motor running roughly and/or
seizing up
- Bent spindle
- Shaft extending from the motor is bent
- Triangular guide not mounted straight
- Dirt between spindle and triangular guide
Motor starts running when
magnet switch is turned on
- Damage or defective relay in control unit
Motor making a rattling sound
- Gear ring (bottom of the armature) worn out
- Gear(s) worn out
- No grease in gearbox
Motor humming, big sparks and
motor has no force
- Armature damaged (burned)
- Field burned
- Carbon brushes worn out
Motor does not start or fails
- Damaged or defective wiring
- Dirt in sensor speed control unit
- Defective or loose magnet on top of armature
- Damaged or defective (sensor) speed control unit
- Damage to armature or field coil
- Damaged or defective carbon brushes
Guiding takes a great deal of
effort
- Guide is set too tight
- Guide is dry, needs to be greased
- 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 clean or flat
- Work piece is less than 10 mm (too thin)
- Defective control unit
- Defective magnet
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