SERVICE
W1747 20" Planer
Troubleshooting
This section covers the most common problems and corrections with this type of |
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machine. WARNING! DO NOT make any adjustments until power is disconnected and | OFF |
moving parts have come to a complete stop! |
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Motor & Machine Operation
PROBLEM |
| POSSIBLE CAUSE |
| CORRECTIVE ACTION |
Motor will not start. | 1. | Emergency stop button depressed. | 1. | Rotate clockwise until it pops out/replace. |
| 2. | Thermal protection circuit. | 2. | Unplug machine, open magnetic switch cover, |
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| Breaker amperage is set too low. |
| turn amperage dial on Thermal Protection Circuit |
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| Breaker to a higher amperage setting. |
| 3. | Open circuit in motor or loose | 3. | Inspect all lead connections on motor for loose or |
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| connections. |
| open connections. |
| 4. | Start capacitor at fault. | 4. | Replace start capacitor. |
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Fuses or circuit breakers | 1. | Short circuit in line cord or plug. | 1. | Repair or replace cord or plug for damaged insula- |
blow. |
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| tion and shorted wires. |
Motor fails to develop full | 1. | Undersized wires or circuits too | 1. | Increase wire sizes or reduce length of the circuit. |
power (output of motor |
| long. |
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decreases rapidly with | 2. | Motor run capacitor at fault. | 2. | Replace run capacitor. |
decrease in voltage at |
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motor terminals). |
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Motor overheats. | 1. | Motor overloaded during opera- | 1. | Reduce cutting load; take lighter cuts. |
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| tion. |
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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 or shuts off | 1. | Motor overloaded during opera- | 1. Reduce cutting load; take lighter cuts. | |
during a cut. |
| tion. |
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| 2. | Thermal protection circuit. | 2. | Unplug machine, open magnetic switch cover, |
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| Breaker amperage is set too low. |
| turn amperage dial on Thermal Protection Circuit |
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| Breaker to a higher amperage setting. |
| 3. | Short circuit in motor or loose | 3. | Repair or replace connections on motor for loose or |
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| connections. |
| shorted terminals or worn insulation. |
| 4. | Circuit breaker tripped. | 4. | Install correct circuit breaker; reduce # of |
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| machines running on that circuit. |
Cutterhead slows or | 1. | 1. | Tighten | |
squeals when cutting, | 2. | 2. | Replace | |
especially on |
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Loud repetitious noise | 1. | Pulley setscrews or keys are miss- | 1. Inspect keys and setscrews. Replace or tighten if | |
coming from machine. |
| ing or loose. |
| necessary. |
| 2. | Motor fan is hitting the cover. | 2. | Adjust fan cover mounting position, tighten fan, or |
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| shim fan cover. |
| 3. | 3. | Replace | |
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Vibration when running or | 1. | Loose or damaged knife. | 1. | Tighten or replace knife (Page 27). |
cutting. | 2. | Damaged | 2. | Replace |
| 3. | Worn cutterhead bearings. | 3. | Check/replace cutterhead bearings. |
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