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.
•
Size of cutter exceed machine’s rated capacity.
•
Check magnet face for unevenness, nicks and burrs.
•
Welding equipment connected to material being drilled.
•
Dull cutter.
2.
Drill motor running, arbor and spindle not turning
•
Possible sheared spindle key.
3.
Motor slows when drilling
•
Refer to page 6 for recommended wire gages and cord lengths.
•
Excessive downfeed pressure during drilling cycle will cause motor to slow and overheat.
•
Cutting tool needs to be resharpened.
4.
Coolant system not working
•
Coolant system is gravity dependent. Machine must be in a upright position to operate properly.
•
Check operation of coolant valve. Valve must turn freely.
•
Check coolant lines for blockage.
•
Dirt or debris in coolant tank.
•
Consistency of coolant mixture too thick.
•
Incorrect pilot pin being used.
•
Vent hole in coolant tank lid blocked.
•
Lid on too tight.
•
Bottle pressurized.
5.
Slugs not ejecting from cutter
•
Lack of coolant causing slugs to expand in cutter bore.
•
Incorrect pilot pin being used.
•
Possible broken internal arbor parts.
6.
Breaking cutters
•
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.
•
Improperly adjusted motor slide – see page 10.
7.
Oversized or rough holes
•
Insufficient coolant.
•
Excessive feed pressure.
•
Dull cutter.
•
Motor slide improperly adjusted.
basic
troubleshooting
9
Summary of Contents for 17985
Page 11: ...machine breakdown 11 Rev D...
Page 14: ...motor breakdown Rev D 14...
