Troubleshooting (continued)
Trouble |
| Probable Cause |
| Remedy |
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Drill bit burns | 1. | Incorrect speed | 1. | Change speed. See “Getting to |
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| Know Your Drill Press” section. |
| 2. | Chips not coming out of | 2. | Retract drill bit frequency to clear |
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| hole |
| chips |
| 3. | Dull drill bit | 3. | Resharpen drill bit |
| 4. | Feeding too slow | 4. | Feed fast enough, allow drill bit to |
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| cut |
| 5. | Not lubricated | 5. | Lubricate drill bit. See “Basic Drill |
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| Press Operation” section. |
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Drill bit leads off, | 1. | Hard grain in wood or | 1. | Resharpen drill bit correctly |
hole not round |
| lengths of cutting lips |
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| and/or angles not |
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| equal. |
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| 2. | Bent drill bit | 2. | Replace drill bit |
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Wood splinters on | 1. | No “backup material” | 1. | Use “backup material”. See “Basic |
underside |
| under workpiece |
| Drill Press Operation” section. |
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Workpiece torn | 1. | Not supported or | 1. | Support or clamp workpiece. See |
loose from hand |
| clamped properly |
| “Basic Drill Press Operation” sec- |
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| tion. |
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Drill bit binds in | 1. | Workpiece pinching | 1. | Support or clamp workpiece. See |
workpiece |
| drill bit or excessive |
| “Basic Drill Press Operation” sec- |
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| feed pressure. |
| tion. |
| 2. | Improper belt tension | 2. | Adjust tension. See “Installing and |
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| Tensioning Belt” section. |
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Excessive drill bit | 1. | Bent drill bit | 1. | Use a straight drill bit. |
runout or wobble. | 2. | ‘Worn spindle bearings | 2. | Replace bearings |
| 3. | Drill bit not properly | 3. | Install drill bit properly. See “Basic |
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| installed in chuck |
| Drill Press Operation” section. |
| 4. | Chuck not properly | 4. | Install chuck properly, refer to |
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| installed |
| “Assembly- Installing the Chuck”. |
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Quill returns too | 1. | Spring has improper | 1. | Adjust spring tension. See “Adjust- |
slow or too fast |
| tension |
| ments - Quill Return Spring” section. |
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Chuck will not stay | 1. | Dirt, grease or oil on | 1. | Using a household detergent, clean |
attached to spin- |
| the tapered inside sur- |
| the tapered surface of the chuck |
dle, it falls off when |
| face of chuck or on the |
| and spindle to remove all dirt, |
trying to install. |
| spindles tapered sur- |
| grease and oil. |
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| face. |
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Chuck rotates but | 1. | Spindle pulley nut (part | 1. | Turn nut counterclockwise to |
does not deliver |
| no. 821742) loose. |
| tighten. (The nut has |
sufficient torque to |
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| threads.) See Repair Parts - Figure 1 |
properly drill. |
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| for location of pulley nut. |
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34