Symptom | Possible Cause | Possible Solution | ||
Machine has vibration or | 1. | Motor or component is loose. | 1. | Inspect for stripped/damaged bolts/nuts, |
noisy operation. |
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| 2. | 2. | Inspect belts, replace and | |
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| Pages 27 & 30). |
| 3. | Motor fan is rubbing on fan cover. | 3. | Replace dented fan cover/damaged fan. |
| 4. | Pulley is loose. | 4. | Remove pulley, replace shaft, pulley, set- |
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| screw, and key as required, and realign. |
5.Machine is incorrectly mounted to the floor. 5. Machine has loose anchor studs in floor, or is sitting on uneven floor. Replace/tighten relocate as required.
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| 6. | Cast iron motor mount is at fault. | 6. | Using leverage and a small pry bar to inspect, |
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| carefully replace loose/broken mounts. |
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| 7. | Motor bearings are at fault. | 7. | Check bearings, replace motor or bearings |
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| as required. |
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Sanding Operations |
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Symptom |
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| Possible Cause | Possible Solution | ||
Vibration when sanding. |
| 1. | Loose drum bearings. | 1. | Tighten drum bearings. | ||
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| 2. | Worn drum bearings. | 2. | Replace drum bearings. |
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Grinding, | screeching, | or | 1. | Drum bushings lack sufficient oil. | 1. | Oil the drum bushings (see Page 25). | |
rubbing noise when sand- | 2. | Drum bushings are worn and need replace- | 2. | Replace the drum bushings. | |||
ing drums are powered up. |
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Short |
| 1. | Pulleys not aligned correctly. | 1. | Align pulleys (see Page 31). | ||
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| 2. | Improperly tensioned. | 2. | Properly tension |
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Machine | lacks | power; | 1. | 1. | Tighten | ||
drums stop turning | under | 2. | Too much pressure on pressure plates. | 2. | Raise the pressure plates (Page 35). | ||
load. |
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Feed belt slips under load. | 1. | Feed belt is too loose. | 1. | Tension feed belt (see Page 32). | |||
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| 2. | Too much load. | 2. | Decrease load. |
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Feed belt tracks to one | 1. | Feed belt tracking is incorrect. | 1. | Track the feed belt so it runs straight (see | |||
side or hits the feed table |
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mounts. |
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Excessive snipe. |
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| 1. | Lack of outfeed support. | 1. | Set up an outfeed table or have someone | |
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| catch the workpiece as it comes out. |
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| 2. | Too much pressure from pressure plates. | 2. | Raise the pressure plates (Page 35). |
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| 3. | Too much pressure from the rear pressure | 3. | Raise the rear pressure plate (Page 35). |
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| plate. |
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Workpiece | kicks | out | of | 1. | Not enough pressure from the pressure | 1. | Lower the pressure plates (Page 35). |
sander. |
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| plates. |
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Sandpaper tears off drums | 1. | Nail/staple in workpiece. | 1. | Sand only clean workpieces. | |||
during operation. |
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| 2. | Sandpaper not tightened or fastened cor- | 2. | Install the sandpaper correctly (see Page | |
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| rectly. |
| 22). |
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Table elevation controls are | 1. | Table lift screws are dirty or loaded with saw- | 1. | Clean and | |||
stiff and hard to adjust. |
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| Page 26). | ||
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| 2. | Chain idler sprocket cap screws have been | 2. | Adjust the cap screws on the idler sprocket |
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| over tightened. |
| so it can spin freely. |
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| 3. | Elevation handle helical gear is dirty or | 3. | Clean and |
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| loaded with sawdust. |
| Page 26). |
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G0458 18" Open End Belt/Drum Sander |
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