Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570)
Troubleshooting
Motor & Electrical
| Symptom |
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| 1. | Limit switch or emergency stop is at fault. | 1. | Correct situation that caused limit switch to engage, reset |
| Motor will not start. |
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| the emergency stop button. | ||
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| 2. | Low voltage. | 2. | Check power line for proper voltage. |
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| 3. | Open circuit in motor or loose connections. | 3. | Inspect all lead connections on motor for loose or open |
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| connections. |
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| Motor will not start; | 1. | Short circuit in line cord or plug. | 1. | Inspect cord or plug for damaged insulation and shorted | ||
| fuses | or | circuit |
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| wires. |
| breakers blow. | 2. | Short circuit in motor or loose connections. | 2. | Inspect all connections on motor for loose or shorted termi- | ||
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| nals or worn insulation. |
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| 3. | Incorrect fuses or circuit breakers in power line. | 3. | Install correct fuses or circuit breakers. |
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| Motor overheats. | 1. | Motor overloaded. | 1. | Reduce load on motor. | ||
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| 2. | Air circulation through the motor restricted. | 2. | Clean out motor to provide normal air circulation. |
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| Motor stalls (result- | 1. | Short circuit in motor or loose connections. | 1. | Inspect connections on motor for loose or shorted terminals | ||
| ing in | blown | fuses |
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| or worn insulation. |
| or tripped circuit). | 2. | Low voltage. | 2 | Correct the low voltage conditions. | ||
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| 3. | Incorrect fuses or circuit breakers in power line. | 3. | Install correct fuses or circuit breakers. |
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| 4. | Motor overloaded. | 4. | Reduce load on motor. |
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Machine Operations |
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Symptom |
| Possible Cause | Possible Solution | |||||
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Machine | slows | 1. | Feed rate too high. | 1. | Feed workpiece slower. | |||
when operating. | 2. | Depth of cut too great. | 2. | Reduce depth of cut. | ||||
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Loud, | repetitious | 1. | Pulley set screws or keys are missing or loose. | 1. | Inspect keys and set screws. Replace or tighten if neces- | |||
noise | coming | from |
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machine. |
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| 2. | Motor fan is hitting the cover. | 2. | Tighten fan or shim cover. | ||
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| 3. | 3. | Replace | |
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Machine |
| is | loud, | 1. | Excessive depth of cut. | 1. | Decrease depth of cut. | |
overheats | or | bogs | 2. | Dull or dirty sanding belt. | 2. | Replace or clean sanding belt. | ||
down in the cut. |
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Rounded workpiece | 1. | Excessive depth of cut. | 1. | Reduce depth of cut. | ||||
edges. |
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Uneven | thickness | 1. | Feed table not parallel to sanding roller. | 1. | Adjust the table. | |||
from left to right of | 2. | Conveyor belt is worn. | 2. | Replace conveyor belt. | ||||
board. |
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Workpiece | slips on | 1. | Pressure rollers set too high. | 1. | Lower pressure rollers. | |||
feed belt. |
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| 2. | Dirty conveyor belt. | 2. | Clean conveyor belt. | ||
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| 3. | Conveyor belt is worn. | 3. | Replace conveyor belt. |
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Straight |
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| strip | 1. | Pressure rollers are dirty or damaged. | 1. | Clean or repair pressure rollers. | |
of | notches | on |
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workpiece. |
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Snake |
| shaped | 1. | Sanding belt damaged or dirty. | 1. | Clean or replace sanding belt. | ||
marks |
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workpiece. |
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G0486/G0487 Wide Belt Sander |
