SECTION 7: SERVICE
Troubleshooting
Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570)
Motor & Gearbox
Symptom | Possible Cause | Possible Solution | ||
Motor will not | 1. | Main power panel switch is OFF. | 1. | Turn the main power panel switch ON. |
start. | 2. | Emergency switch is pushed in. | 2. | Rotate emergency switch so it pops out. |
| 3. | Circuit breaker or fuse has tripped. | 3. | Seek an electrician to troubleshoot and repair the |
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| shop power supply. |
| 4. | No voltage or open connection. | 4. | Test circuit, replace wires and connections as |
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| required. |
| 5. | Capacitor is at fault. | 5. | Replace capacitor. |
| 6. | Motor direction switch is at fault. | 6. | Replace switch. |
| 7. | Power switch or magnetic contactor is at | 7. | Replace power switch or magnetic contactor. |
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| 8. | Motor is at fault. | 8. | Replace motor. |
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Fuses or circuit | 1. | Short circuit in line cord or plug. | 1. | Inspect cord or plug for damaged insulation and |
breakers trip |
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| shorted wires. |
open. | 2. | Short circuit in motor or loose connections. | 2. | Inspect all connections on motor for loose or shorted |
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| terminals or worn insulation. |
| 3. | Incorrect fuses or circuit breakers in power | 3. | Install correct fuses or circuit breakers. |
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Machine is | 1. | Excessive depth of cut. | 1. | Decrease depth of cut. |
loud belt slips | 2. | RPM or feed rate wrong for operation. | 2. | Refer to RPM feed rate chart for appropriate rates. |
when cutting. | 3. | Dull cutters. | 3. | Sharpen or replace cutters. |
Overheats or | 4. | Belt is slipping. | 4. | Remove grease or oil on belt or pulleys/tighten belt |
bogs down in the |
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| tensioner against low range belt. |
cut. | 5. | Belt is at fault. | 5. | Replace belt. |
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Gear change | 1. Gears not aligned in headstock. | 1. | Rotate spindle by hand until gear falls into place. | |
levers will not |
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shift into position. |
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Loud, repetitious | 1. | Pulley set screws or keys are missing or | 1. | Inspect keys and set screws. Replace or tighten if |
noise coming |
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| necessary. |
from machine | 2. | Motor fan is hitting the cover. | 2. | Tighten fan or shim cover, or replace items. |
at or near the |
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motor. |
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Motor is loud | 1. | Excessive depth of cut or feed rate. | 1. | Decrease depth of cut or feed rate. |
when cutting. | 2. | RPM or feed rate wrong for cutting operation. | 2. | Refer to RPM feed rate chart for appropriate rates. |
Overheats or | 3. | Cutting tool is dull. | 3. | Sharpen or replace the cutting tool. |
bogs down in the | 4. | Gear setup is too tight, causing them to bind. | 4. | Readjust the gear setup with a small amount of |
cut. |
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| backlash so the gears move freely and smoothly |
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| when the chuck is rotated by hand. |
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Gear change | 1. | Gears not aligned in headstock. | 1. | Rotate spindle by hand until gear falls into place. |
levers will not |
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shift into position. |
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G4003G Gunsmith's Lathe |
