TROUBLESHOOTING
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| SYMPTOM |
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| POSSIBLE CAUSE |
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| CORRECTIVE ACTION |
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| Motor will not start. |
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| 1. | Low voltage. |
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| 1. | Check power line for proper voltage. |
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| 2. | Open circuit in motor or |
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| 2. | Inspect all lead connections on motor for |
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| loose connections. |
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| loose or open connections. |
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| Motor | will | not start; |
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| 1. | Short circuit in line cord |
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| 1. | Inspect cord or plug for damaged insulation |
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| fuses or circuit break- |
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| or plug. |
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| and shorted wires. |
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| ers blow. |
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| 2. | Short circuit in motor or |
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| 2. | Inspect all connections on motor for loose |
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| loose connections. |
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| or shorted terminals or worn insulation. |
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| 3. | Incorrect | fuses or circuit |
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| 3. | Install correct fuses or circuit breakers. |
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| breakers in power line. |
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| Motor fails to develop |
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| 1. | Power | line | overloaded |
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| 1. | Reduce load on power line. |
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| full power (power out- |
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| with | lights, | appliances, |
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| put of motor decreas- |
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| and other motors. |
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| es | rapidly | with |
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| 2. | Undersized wires or cir- |
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| 2. | Increase wire sizes or reduce length of |
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| decrease in voltage at |
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| cuits too long. |
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| wire. |
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| motor terminals). |
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| 3. | General | overloading of |
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| 3. | Request a power check from the power |
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| power | company facili- |
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| company. |
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| ties. |
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| Motor overheats. |
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| 1. | Motor overloaded. |
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| 1. | Reduce load on motor. |
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| 2. | Air circulation through the |
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| 2. | Clean out motor to provide normal air circu- |
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| motor restricted. |
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| lation. |
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| Motor stalls (resulting |
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| 1. | Short circuit in motor or |
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| 1. | Inspect connections on motor for loose or |
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| in blown | fuses | or |
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| loose connections. |
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| shorted terminals or worn insulation. |
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| tripped circuit). |
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| 2. | Low voltage. |
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| 2 | Correct the low voltage conditions. |
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| 3. | Incorrect | fuses or circuit |
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| 3. | Install correct fuses or circuit breakers. |
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| breakers in power line. |
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| 4. | Motor overloaded. |
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| 4. | Reduce load on motor. |
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| Machine slows down |
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| Applying too much pres- |
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| Feed workpiece slower. |
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| when operating. |
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| sure to workpiece. |
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| Abrasive belt runs off |
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| Not tracking properly. |
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| 1. | Adjust tracking. |
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| top wheel. |
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| 2. | Belt platen may be interfering. Adjust away |
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| from the belt. |
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G3105 Combination Sander |