Trouble
Conveyor rollers run intermittently.
Sander burns wood.
Conveyor belt slips on drive roller.
Board slips on conveyor belt.
Sander motor slows or stalls.
Ripples in sanded surface.
A.
B.Uniformly spaced ripples.
Wood is gouged.
Table height adjustment works improperly.
Motor overload protector trips or shop wiring breaker trips.
Probable Cause | Remedy | |
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| Align shaft flats of gear motor and | |
Shaft coupling loose. | drive roller, and tighten shaft coupling | |
| set screws. | |
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Abrasive strip is overlapped. | ||
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Abrasive is loaded. | Clean abrasive. | |
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Depth of cut excessive for fine grit. | Use coarser grit or reduce depth of | |
cut. | ||
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Feed rate too slow. | Increase feed rate. | |
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Abrasive is worn. | Replace abrasive. | |
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Improper conveyor belt tension. | Adjust belt tension (page 16). | |
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Excessive depth of cut and/or feed | Reduce depth of cut and/or feed rate. | |
rate. | ||
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Tension rollers too high. | Lower tension rollers (see page 19). | |
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Excessive feed rate. | Reduce feed rate. | |
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Dirty or worn conveyor belt. | Replace conveyor belt. | |
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Improper conveyor belt tension. | Adjust belt tension. If necessary, | |
reduce depth of cut and/or feed rate. | ||
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Excessive depth of cut and/or | Reduce depth of cut or feed rate. | |
excessive feed rate. | ||
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| Conveyor belt slipping (see above) | |
A. Uneven feed rate. | Board slips on conveyor belt (see | |
above). | ||
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| Conveyor motor stalls (see above). | |
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| Reduce depth of cut and/or feed rate. | |
B. Conveyor bed flexing or vibration. | Check for loose bolts, loose shaft | |
coupling set screws, or | ||
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| drum. | |
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Stock slipping on conveyor. | Correct depth of cut or roller tension. | |
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Work piece not properly supported. | Add work supports for long work | |
pieces. | ||
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Improper adjustment of height control. | Readjust height control. See pages | |
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Excessive load on sanding drum and | Allow motor to cool and | |
motor. | overload button. | |
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| Connect sander to a dedicated circuit. | |
Too many tools on circuit. | Have a certified electrician correct | |
| any shop wiring problem. | |
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Excessive length or inadequate size | Use a shorter or heavier gauge | |
extension cord. | extension cord (see Figure 19). | |
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