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G9969 Radial Drill Press
-29-
Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you
need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support
at (570) 546-9663.
SECTION 7: SERVICE
About Service
Symptom Possible Cause Possible Solution
Machine does not start or a
breaker trips.
1. Plug or receptacle is at fault or wired
incorrectly.
2. Motor connection is wired incorrectly.
3. Power supply is faulty, or is switched
OFF.
4. Safety switch key is at fault.
5. ON/OFF switch at fault.
6. Cable or wiring is open or has high
resistance.
7. Motor is at fault.
1. Test power plug and receptacle for good
contact and correct wiring.
2. Correct motor wiring (see
Page 34).
3. Make sure all hot lines and grounds are
operational and have correct voltage on all
legs.
4. Install or replace safety key, or replace
switch assembly.
5. Replace faulty switch.
6. Troubleshoot wires for internal or external
breaks, check for disconnected or corroded
connections and repair or replace wiring, as
necessary.
7. Test, repair or replace motor.
Machine stalls or is underpow
-
ered.
1. Incorrect spindle speed or feed rate.
2. Machine is undersized for the task.
3. Bit or cutter is too large for machine.
4. Belts are slipping.
5. Plug or receptacle is at fault.
6. Motor connection is wired incorrectly.
7. Pulley is slipping on shaft.
8. Low power supply voltage.
9. Motor bearings are at fault.
10. Motor has overheated.
11. Motor is at fault.
1. Decrease spindle speed or feed rate.
2. Use smaller drill bits/cutters and reduce the
feed rate and spindle speed.
3. Use a smaller bit.
4. Replace bad belts, align pulleys, and re-ten
-
sion.
5. Test power plug and receptacle for good
contact and correct wiring.
6. Correct motor wiring (see
Page 34).
7. Replace loose pulley and shaft.
8. Make sure hot lines and grounds are opera
-
tional w/correct voltage.
9. Rotate motor shaft for noisy or burnt bear
-
ings, repair/replace as required.
10. Clean dust off motor, let it cool, and reduce
workload on machine.
11. Test, repair or replace motor.
Troubleshooting
Motor & Electrical