M1036 Micro Mill
Troubleshooting
This section covers the most common problems and corrections with this type of machine. WARNING! DO NOT make any adjustments until power is disconnected and moving parts have come to a complete stop!
| SYMPTOM |
| POSSIBLE CAUSE |
| CORRECTIVE ACTION |
| Motor will not start. | 1. | Blown system fuse. | 1. | Replace fuse. |
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| 2. | Tripped circuit breaker inside | 2. | Reset circuit breaker by flipping switch on then off |
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| power source breaker box. |
| then back on. |
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| 3. | Low voltage. | 3. | Check power supply for proper voltage. |
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| 4. | Open circuit in motor or loose | 4. | Inspect all lead connections on motor and magnetic |
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| connections. |
| switch for loose or open connections. |
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| 5. | Switch at fault. | 5. | Replace switch. |
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| Fuses or circuit breakers | 1. | Short circuit in line cord or plug. | 1. | Inspect cord or plug for damaged insulation and |
| trip open. |
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| shorted wires and replace extension cord. |
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| 2. | Short circuit in motor or loose | 2. | Inspect all connections on motor for loose or |
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| connections. |
| shorted terminals or worn insulation. |
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| 3. | Incorrect fuses or circuit breakers | 3. | Install correct fuses or circuit breakers. |
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| in power supply. |
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| Motor overheats. | 1. | Motor overloaded. | 1. | Reduce load on motor. |
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| 2. | Air circulation through the motor | 2. | Clean out motor to provide normal air circulation. |
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| restricted. |
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| 3. | Motor brushes are wearing. | 3. | Inspect motor brushes, replace if necessary. |
| Bit slips in collet or drill | 1. | Chuck is not fully tightened. | 1. | Tighten the collet or drill chuck. |
| chuck. | 2. | Bit installed in drill chuck off | 2. | |
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| center. |
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| 3. | Wrong size collet. | 3. | Measure tool shank diameter and match with |
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| appropriate diameter collet. |
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| 4. | Debris in collet or in spindle taper. | 4. | Remove all oil and debris from collet and spindle |
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| taper. |
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| 5. | Taking too big of a cut. | 5. | Lessen depth of cut and allow chips to clear. |
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| Breaking tools or cutters. | 1. | RPM and or feed rate is too fast. | 1. | Reduce RPM and feed rates. |
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| 2. | Cutting tool getting too hot. | 2. | Use cutting fluid or oil for appropriate application. |
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| 3. | Taking too big of a cut. | 3. | Lessen depth of cut and allow chips to clear. |
| Machine is loud when | 1. | Excessive depth of cut. | 1. | Decrease depth of cut. |
| cutting. Overheats or bogs | 2. | Dull cutting tools. | 2. | Use sharp cutting tools. |
| down in the cut. |
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| Workpiece vibrates or | 1. | Table locks not tight. | 1. | Tighten down table locks. |
| chatters during operation. | 2. | Workpiece not securely clamped to | 2. | Check that clamping is tight and sufficient for the |
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| table or into mill vise. |
| job. Make sure mill vise is tight to the table. |
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| 3. | RPM and feed rate too high. | 3. | Use appropriate RPM and feed for the job. |
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| Table hard to move. | 1. | Table locks are tightened down. | 1. | Make sure table locks are fully released. |
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| 2. | Chips have loaded up on bedways. | 2. | Frequently clean away chips that load up during |
SERVICE |
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| milling operations. |
| 3. | Bedways are dry and in need of | 3. | Lubricate bedways and handles. | |
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| lubrication. |
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| 4. | Gibs are too tight. | 4. | Loosen gib screw(s). |
| Bad surface finish. | 1. | Wrong RPM or feed rate. | 1. | Adjust for appropriate RPM and feed rate. |
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| 2. | Dull cutting tool or poor cutting | 2. | Sharpen cutting tool or select a better cutting tool |
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| tool selection. |
| for the intended operation. |
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| 3. | Table locks not tightened down. | 3. | Tighten table locks to maintain rigidity. |
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| 4. | Gibs are loose. | 4. | Tighten gibs slightly. |
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| Difficulty removing collet | 1. | Debris in spindle taper or collet | 1. | Keep all taper surfaces spotlessly clean. |
| from spindle. |
| taper or both. |
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