Symptom | Possible Cause | Possible Solution | ||
Drill bit wobbles, | 1. | Drill bit installed incorrectly. | 1. | Remove drill bit and reinstall. |
holes are over- | 2. | Drill bit is bent. | 2. | Replace drill bit. |
sized. |
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Tool slips in | 1. | Collet is not fully drawn up into spindle taper. | 1. | Snug up draw bar. |
collet. | 2. | Wrong size collet. | 2. | Measure tool shank diameter and match with |
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| appropriate diameter collet. |
| 3. | Debris in collet or in spindle taper. | 3. | Remove all oil and debris from collet and spindle |
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| taper. |
| 4. | Taking too big of a cut. | 4. | Lessen depth of cut and allow chips to clear. |
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Breaking tools or | 1. | RPM and or feed rate is too fast. | 1. | Use tables to set correct RPM and feed rates. |
cutters. | 2. | Cutting tool getting too hot. | 2. | Use cutting fluid or oil for appropriate application. |
| 3. | Taking too big of a cut. | 3. | Lessen depth of cut and allow chips to clear. |
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Machine is loud | 1. | Excessive depth of cut. | 1. | Decrease depth of cut. |
when cutting, | 2. | Dull cutting tools. | 2. | Use sharp cutting tools. |
overheats or | 3. | RPM and feed rate too high. | 3. | Use appropriate RPM and feed for the job. |
bogs down in the |
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cut. |
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Workpiece | 1. | Table locks not tight. | 1. | Tighten down table locks. |
vibrates or | 2. | Spindle lock not tight. | 2. | Tighten spindle lock. |
chatters during | 3. | Workpiece not securely clamped to table or | 3. | Check that clamping is tight and sufficient for the |
operation. |
| into mill/drill vice. |
| job. Make sure mill/drill vice is tight to the table. |
| 4. | RPM and feed rate too high. | 4. | Use appropriate RPM and feed for the job. |
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Table hard to | 1. | Table locks are tightened down. | 1. | Make sure table locks are fully released. |
move. | 2. | Chips have loaded up on bedways. | 2. | Frequently clean away chips that load up during |
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| milling operations. |
| 3. | Bedways are dry and in need of lubrication. | 3. | Lubricate bedways and handles. |
| 4. | Longitudinal stops are interfering. | 4. | Check to make sure that stops are loose and not |
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| hitting the center stop. |
| 5. | Gibs are too tight. | 5. | Loosen gib screw(s). |
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Bad surface fin- | 1. | Wrong RPM or feed rate. | 1. | Adjust for appropriate RPM and feed rate. |
ish. | 2. | Dull cutting tool or poor cutting tool selection. | 2. | Sharpen cutting tool or select a better cutting tool |
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| for the intended operation. |
| 3. | Wrong rotation of cutting tool. | 3. | Check for proper cutting rotation for cutting tool. |
| 4. | Workpiece not securely clamped. | 4. | Secure properly. |
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G1005Z Mill/Drill |