SECTION 7: SERVICE
Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel- ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570)
Troubleshooting
Symptom | Possible Cause | Possible Solution | ||
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Motor will not | 1. | Breaker or fuse at fault. | 1. | If necessary, replace/reset fuse/breaker. |
start; fuses/circuit | 2. | Loose connection or short in line cord, plug, | 2. | Inspect/repair cord, plug, and motor for damaged |
breakers trip. |
| or motor. |
| insulation, shorted wires, or loose connections. |
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| 3. | Machine attached to incorrect power | 3. | Connect to |
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Motor slows | 1. | Workpiece pressure is too great. | 1. | Reduce workpiece pressure on sanding surface. |
or stalls when | 2. | Breaker or fuse at fault. | 2. | Repair cause of short. Replace/reset fuse/breaker. |
operating. | 3. | Incorrect fuses or circuit breakers in power | 3. | Install correct fuses or circuit breakers. |
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Machine vibrates | 1. | Machine placed on uneven surface. | 1. | Properly place machine on level surface. |
excessively. | 2. | Incorrect sanding belt tracking. | 2. | Adjust sanding belt tracking (Page 17). |
| 3. | Weak or broken sanding belt tension | 3. | Replace spring. |
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| spring. |
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| 4. | Broken/damaged sanding belt. | 4. | Replace sanding belt. |
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Sanded surface not | 1. | Table not square to sanding belt. | 1. | Square table relative to sanding belt (Page 16). |
square. |
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Deep sanding | 1. | Sandpaper damaged or clogged. | 1. | Clean/replace sanding surface. |
grooves or scars in | 2. | Sandpaper too coarse for desired finish. | 2. | Use a finer grit sanding surface. |
workpiece. | 3. | Workpiece sanded across grain. | 3. | Sand with the grain. |
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| 4. | Too much sanding force on workpiece. | 4. | Reduce pressure on workpiece while sanding. |
| 5. | Workpiece held still against the belt. | 5. | Keep workpiece moving across sanding surface. |
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Sanding grains | 1. | Sanding belt has been stored incorrectly. | 1. | Store sanding materials away from heat or damp |
easily rub off |
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| conditions; store flat, not folded or bent. |
sanding surface. | 2. | Sanding surface has been damaged. | 2. | Replace sanding material. |
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Sanding surface | 1. | Too much pressure against belt. | 1. | Reduce pressure on workpiece while sanding. |
clogs quickly or | 2. | Sanding softwood or has paint/varnish. | 2. | Use different stock; change/clean sanding material |
burns. |
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| often. |
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Burn marks on | 1. | Using too fine of sanding grit. | 1. | Use a coarser grit sanding belt. |
workpiece. | 2. | Using too much pressure. | 2. | Reduce pressure on workpiece while sanding. |
| 3. | Work held still for too long. | 3. | Do not keep workpiece in one place for too long. |
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Glazed sanding | 1. | Sanding wet stock. | 1. | Dry stock proper before sanding. |
surfaces. | 2. | Sanding stock with high residue. | 2. | Use different stock; change/clean sanding material |
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| often. |
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Model H3140 (Mfg. after 6/02) |
