8. Troubleshooting

Magnet and motor do not function

- The machine is not connected to the power supply

- Damaged or defective wiring

- Defective fuse

- Defective magnet switch

- 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 armature and/or field

Magnet does not function, the motor does

- Defective magnet

- Defective wiring of magnet

Annular cutters break quickly, holes are bigger than the hole cutter

- Excessive clearance in the Slide

- Bent spindle

- Bent Arbor

Motor running roughly and/or seizing up

- Worn bearings

- Worn transfer gear

Motor making a rattling sound

- Gear(s) worn out

- No grease in gear box

Motor humming, big sparks and motor has no force

- Armature damaged (burned out)

- Field coil damaged (burned out)

- Carbon brushes worn out

Motor does not start or fails.

- Damaged or defective wiring

- Defective or loose magnet on top of armature

- Damage to Armature or field coil

- Damaged or defective carbon brushes

Guiding takes a great deal of effort

- Slide Adjustment screws have been overtightened

- Dirt in height adjustment gear/rack assembly

- Insufficient lubrication to slide

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 magnet

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

- Damaged or defective wiring

- Wrong value fuse

- Defective Armature and / or Field

- Carbon brushes worn out