21
3.
Ensure that the ventilation slots are clear so that motor can be cooled normally. Blow low-pressure
compressed air through the ventilation slots with the motor running to keep motor clean.
THE ARBOR SHAFT
Keep the arbor shaft free of dirt and lightly grease as needed. If the arbor support bearing is noisy, it may be
dirty or have a chip lodged in it. Remove the arbor shaft to clean and re-grease the arbor support bearing.
THE GIBS (DOVETAIL SLIDES)
The gibes require adjustment if too loose. To adjust, loosen the lock nuts and adjust
the adjustor screws evenly while moving the handle up and down. Adjust so that
there is no free play, yet any binding anywhere in its range of travel. Then retighten
the lock nuts. Periodically check, lubricate, and adjust as needed.
THE CARBON BRUSHES
The carbon brushes are a normal wearing part and must be replaced when they reach their wear limit.
Caution: Always replace the brushes as a pair.
To replace:
1.
Remove the 4 screws and remove the motor tail cover.
2.
Using pliers rotate the brush spring out of the way and slide the old
carbon brush out of the brush holder.
3.
Unscrew the screw to remove the brush lead. The old carbon brush
may now be lifted away.
4.
Install a new brush. Installation is the reverse of removal.
5.
Replace the motor tail cover.
AUTO STOP CARBON BRUSH
Due to the new auto stop carbon brush if the machine comes to a stop
without any reason, the brushes have to be checked. The auto feature
stops the machine before the carbon brushes are finished and protects
the motor.
MAGNET TROUBLESHOOTING
Full magnet performance is absolutely essential for magnetic drill operation.
If the magnet works, but does not hold well, it is likely that one of the coils has failed. If the magnet does not
work at all, it is likely to be a failed rectifier. (It is highly unlikely that both magnet coils would fail at the same
time)
Tention
Spring
Brush
Holder
Auto Stop
Carbon
Brush
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