TROUBLESHOOTING
SYMPTOM | POSSIBLE CAUSE | CORRECTIVE ACTION | |||
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Motor will not start. | 1. | Low voltage. | 1. | Check power line for proper voltage. | |
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| 2. | Open circuit in motor or loose | 2. | Inspect all lead connections on motor for loose or open connec- |
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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 | 2. | Inspect all connections on motor for loose or shorted terminals or | |
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| connections. |
| worn insulation. |
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| 3. | Incorrect fuses or circuit break- | 3. | Install correct fuses or circuit breakers. |
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| ers in power line. |
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Motor overheats. | 1. | Motor overloaded. | 1. | Reduce load on motor. | |
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| 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 | 1. | Inspect connections on motor for loose or shorted terminals or |
blown fuses or tripped cir- |
| connections. |
| worn insulation. | |
cuit). |
| 2. | Low voltage. | 2 | Correct the low voltage conditions. |
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| 3. | Incorrect fuses or circuit break- | 3. | Install correct fuses or circuit breakers. |
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| ers in power line. |
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| 4. | Motor overloaded. | 4. | Reduce load on motor. |
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Machine slows when oper- | 1. | Feed rate too high. | 1. | Feed workpiece slower. | |
ating. |
| 2. | Depth of cut too great. | 2. | Reduce depth of cut. |
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Loud, repetitious noise com- | 1. | Pulley set screws or keys are | 1. | Inspect keys and set screws. Replace or tighten if necessary. | |
ing from machine |
| missing or loose. | 2. | Tighten fan or shim cover. | |
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| 2. | Motor fan is hitting the cover. | 3. | Replace |
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Machine is loud when cut- | 1. | Excessive depth of cut. | 1. | Decrease depth of cut. | |
ting. | Overheats or bogs | 2. | Knives are dull. | 2. | Sharpen knives. |
down in the cut. |
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DO NOT make adjustments while the jointer is running. Ensure that the switch is off, power is disconnected and moving parts have stopped before making adjustments. Failure to comply may result in serious per- sonal injury.
Ultimate Series Jointers |