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Troubleshooting, Motor & electrical, Se rv ic e – Woodstock M1109 User Manual

Page 43

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M1109 Combo Lathe/Mill

SE

RV

IC

E

SYMPTOM

POSSIBLE CAUSE

CORRECTIVE ACTION

Motor will not
start.

1. Incorrect lathe operation.
2. Main power switch is

OFF.

3. Emergency switch is pushed in.
4. Circuit breaker or fuse is at fault.

5. No voltage or open connection.

6. Motor is at fault.

1. Use the spindle direction ON/OFF lever.
2. Turn the main power switch

ON at the back of the

lathe.

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 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

turning 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 posi-
tion.

1. Gears not aligned in headstock.

1. Rotate spindle by hand until gear falls into place.

Can't remove
tapered tool
from quill.

1. Quill had not retracted all the way back into

the tailstock.

1. Turn the quill handwheel until it forces taper out

of quill.

Troubleshooting

This section covers the most common lathe problems. DO NOT make any adjustments until the lathe is

disconnected from power and all moving parts have come to a complete stop.

Motor & Electrical