Grizzly G0492 - Manual (Page 45)

G0492 12" X 36" Combo Lathe/Mill
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Symptom Possible Cause Possible Solution
Motor will not
start. 1. Incorrect lathe operation.
2. Main power panel switch is
OFF.
3. Emergency switch is pushed in.
4. Circuit breaker or fuse has tripped.
5. No voltage or open connection.
6. Capacitor is at fault.
7. Limit switch is at fault.
8. Power switch or magnetic contactor is at
fault.
9. Transformer or fuse at fault
10. Motor is at fault.
1. Use the spindle direction ON/OFF lever.
2. Turn the main power panel switch
ON.
3. Rotate emergency switch so it pops out.
4. Seek an electrician to troubleshoot and repair the
shop power supply.
5. Test circuit, replace wires and connections as
required.
6. Replace capacitor.
7. Replace limit switch.
8. Replace power switch or magnetic contactor.
9. Replace transformer or fuse.
10. Replace motor.
Fuses or circuit
breakers trip
open. 1. Short circuit in line cord or plug.
2. Short circuit in motor or loose connections.
3. Incorrect fuses or circuit breakers in power
supply.
1. Inspect cord or plug for damaged insulation and
shorted wires.
2. Inspect all connections on motor for loose or shorted
terminals or worn insulation.
3. Install correct fuses or circuit breakers.
Carriage hard to
move. 1. Chips have loaded up on bedways.
2. Bedways are dry and in need of lubrication.
3. Longitudinal stops are interfering.
4. Gibs are too tight.
1. Frequently clean away chips that load up during turn-
ing operations.
2. Lubricate bedways and handles.
3. Check to make sure that stops are floating and not
hitting the center stop.
4. Loosen gib screw(s) slightly.
Machine is loud
when cutting.
Overheats or
bogs down in the
cut. 1. Excessive depth of cut.
2. RPM or feed rate wrong for operation.
3. Dull cutters. 1. Decrease depth of cut.
2. Refer to RPM feed rate chart for appropriate rates.
3.
Sharpen or replace cutters.
Bad surface fin-
ish. 1. Wrong RPM or feed rate.
2. Dull tooling or tool not centered correctly.
3. Too much play in gibs. 1. Adjust for appropriate RPM and feed rate.
2. Sharpen tooling and/or center tool correctly.
3. Tighten gibs.
Gear change
levers will not
shift into position. 1. Gears not aligned in headstock. 1. Rotate spindle by hand until gear falls into place.
Troubleshooting
Motor & Electrical
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) 546-9663.