1.
Magnetic base not holding securely
•
Material is too thin to engage magnet.
•
Surface of material being drilled must be free of chips, debris, rust and mill scale.
•
Does size of cutter exceed machine’s rated capacity?
•
Check magnet face for unevenness, nicks and burrs.
•
Is welding equipment connected to material being drilled?
2.
drill motor running, arbor and spindle not turning
•
Possible sheared spindle key.
3.
Motor slows when drilling
•
Is an extension cord being used? If so, see page 6 for recommended wire gages and cord lengths.
•
Excessive downfeed pressure during drilling cycle will cause motor to slow and overheat.
•
Does cutting tool need to be resharpened?
4.
coolant system not working
•
Coolant system is gravity dependent, machine must be in a upright position to operate properly.
•
Check coolant lines for blockage.
•
Dirt or debris in coolant tank.
•
Consistency of coolant mixture too thick.
•
Is correct pilot pin being used?
•
Vent hole in coolant tank lid blocked.
5.
Slugs not ejecting from cutter
•
Lack of coolant causing slugs to expand in cutter bore.
•
Is correct pilot pin being used?
•
Possible broken internal arbor parts.
6.
Breaking cutters
•
How is coolant being applied? Coolant must be supplied to interior of cutter.
•
Excessive feed pressure being applied when cutter initially contacts work surface.
•
Confirm material hardness.
•
Drilling stacked materials with incorrect cutter.
•
Dull cutters; dull or chipped cutting edges require excessive feed pressure, resulting in breakage.
•
Excessive arbor runout – see regular maintenance on page 10.
7.
Oversized or rough holes
•
Insufficient coolant.
•
Excessive feed pressure.
•
Dull cutter.
basic
troubleshooting
9
