Troubleshooting – Mechanical and Electrical Problems
Trouble
Machine will not start/restart or repeatedly trips circuit breaker or blows fuses.
Probable Cause | Remedy | |
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| Verify machine is connected to power | |
No incoming power. | source. Make sure START button is | |
pushed in completely, and the STOP | ||
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| button is disengaged. See page 21. | |
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Cord damaged. | Replace cord. | |
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| Remove the switch plate from the rear | |
Overload automatic reset has not | of the column (see page 14) and reset | |
the overload by pushing in completely | ||
been reset. | the OFF (red) button on the magnetic | |
| switch. If problem persists, check amp | |
| setting on the motor starter. | |
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| |
| One cause of overloading trips which | |
| are not electrical in nature is too | |
| heavy a cut. The solution is to reduce | |
| feed pressure into the blade. If too | |
Band Saw frequently trips. | heavy a cut is not the problem, then | |
check the amp setting on the overload | ||
| relay. Match the full load amps on the | |
| motor as noted on the motor plate. If | |
| amp setting is correct then there is | |
| probably a loose electrical lead. | |
| Check amp setting on motor starter. | |
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| |
| Verify that band saw is on a circuit of | |
Building circuit breaker trips or fuse | correct size. If circuit size is correct, | |
there is probably a loose electrical | ||
blows. | ||
lead. Check amp setting on motor | ||
| ||
| starter. | |
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| |
| If you have access to a voltmeter, you | |
| can separate a starter failure from a | |
| motor failure by first, verifying | |
| incoming voltage at | |
| second, checking the voltage | |
Switch or motor failure (how to | between starter and motor at 220+/- | |
distinguish). | 20. If incoming voltage is incorrect, | |
| you have a power supply problem. If | |
| voltage between starter and motor is | |
| incorrect, you have a starter problem. | |
| If voltage between starter and motor | |
| is correct, you have a motor problem. | |
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| |
| Clean motor of dust or debris to allow | |
Motor overheated. | proper air circulation. Allow motor to | |
cool down before restarting. | ||
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| If electric motor is suspect, you have | |
| two options: Have a qualified | |
Motor failure. | electrician test the motor for function | |
or remove the motor and take it to a | ||
| ||
| qualified electric motor repair shop | |
| and have it tested. | |
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