Troubleshooting Machine
SYMPTOM | POSSIBLE CAUSE | CORRECTIVE ACTION | ||
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Motor will not start. | 1. | Low voltage. | 1. | Check power line for proper voltage. |
| 2. | Open circuit in motor or loose connec- | 2. | Inspect all lead connections on motor for loose or open connec- |
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| tions. |
| tions. |
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Motor will not start; fuses or | 1. | Short circuit in line cord or plug. | 1. | Inspect cord or plug for damaged insulation and shorted wires. |
circuit breakers blow. | 2. | Short circuit in motor or loose connec- | 2. | Inspect all connections on motor for loose or shorted terminals |
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| tions. |
| or worn insulation. |
| 3. | Incorrect fuses or circuit breakers in | 3. | Install correct fuses or circuit breakers. |
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| power line. |
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Motor overheats. | 1. | Motor overloaded. | 1. | Reduce load on motor. |
| 2. | Air circulation through the motor | 2. | Clean out motor to provide normal air circulation. |
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| restricted. |
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Motor stalls (resulting in | 1. | Short circuit in motor or loose connec- | 1. | Inspect connections on motor for loose or shorted terminals or |
blown fuses or tripped cir- |
| tions. |
| worn insulation. |
cuit). | 2. | Low voltage. | 2 | Correct the low voltage conditions. |
| 3. | Incorrect fuses or circuit breakers in | 3. | Install correct fuses or circuit breakers. |
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| power line. |
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| 4. | Motor overloaded. | 4. | Reduce load on motor. |
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Machine slows when oper- | 1. | Applying too much pressure to work- | 1. | Sand with less |
ating. |
| piece. |
| work. |
| 2. | Undersized circuit or using ext cord. | 2. | Make sure circuit wires are proper gauge & don’t use ext cords! |
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Loud, repetitious noise com- | 1. | Pulley setscrews or keys are missing or | 1. | Inspect keys and setscrews. Replace or tighten if necessary. |
ing from machine. |
| loose. |
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| 2. | Motor fan is hitting the cover. | 2. | Tighten fan or shim cover. |
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Machine vibrates excessive- | 1. | Stand not stable on floor. | 1. | Secure stand to floor, reposition to level surface, or shim stand. |
ly. | 2. | Incorrect motor mounting. | 2. | Check/adjust motor mounting. |
| 3. | Incorrect sanding belt tension. | 3. | Make sure tension lever is in tensioning position. Follow belt ten- |
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| sioning instructions in this manual. |
| 4. | Weak or broken tension spring. | 4. | Replace spring. |
| 5. | Idler roller is too loose. | 5. | Adjust idler roller. |
| 6. | Broken/defective sanding belt. | 6. | Replace sanding belt. |
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Disconnect power to the machine when perform- ing any maintenance or repairs. Failure to do this may result in serious personal injury.
G0512 Edge Sander |
