Trouble
Machine will not start/restart or repeatedly trips circuit breaker or blows fuses.
(cont.)
Probable Cause | Remedy | |
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| One cause of overload trips which is | |
| not electrical in nature is too heavy a | |
| cut. The solution is to take a lighter | |
| cut. If too deep a cut is not the | |
| problem, then check the amp setting | |
Planer frequently trips. | on the overload relay. Match the full | |
load amps on the motor as noted on | ||
| the motor plate. If amp setting is | |
| correct, there is probably a loose | |
| electrical lead or a failed component. | |
| See “Motor starter failure” below. | |
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| Verify that the planer 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. Also check amp setting on | ||
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| motor starter. | |
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| Go through all of the electrical | |
| connections on the planer including | |
| motor connections, verifying the | |
Loose electrical connections. | tightness of each. Look for any signs | |
| of electrical arcing which is a sure | |
| indicator of loose connection or circuit | |
| overload. | |
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| Examine the switch and switch | |
| housing for any sign of damage. If | |
| damage is seen, replace components. | |
| If the switch circuitry is suspect, you | |
Failed or broken interlock switch. | have two options: have a qualified | |
| electrician test the switch for function, | |
| or purchase a new switch and | |
| establish if that was the problem on | |
| changeout. | |
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| Examine motor starter for burned or | |
| failed components. If damage is | |
| found, replace motor starter. If motor | |
| starter looks okay but is still suspect, | |
| you have two options: have a | |
| qualified electrician test the motor | |
| starter for function, or purchase a new | |
| starter and establish if that was the | |
| problem on changeout. | |
Motor/starter failure (how to | If you have access to a voltmeter, you | |
distinguish). | can separate a starter failure from a | |
| motor failure by first, verifying | |
| incoming voltage at | |
| second, checking the voltage | |
| between starter motor at | |
| 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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