-30-
W1758 Owner's Manual (Mfg. Since 4/10)
SE
RV
IC
E
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!
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Lathe will not start, or it
growls on start up.
1. Power supply fuse or circuit break-
er has tripped.
2. Motor fan cover is dented, stop-
ping the fan from being able to
spin.
3. Paddle switch is broken or faulty.
4. Start capacitor is at fault.
5. Motor is at fault.
1. Disconnect power, and inspect circuit for electrical
shorts and repair. Replace circuit breaker if it is
old or has tripped many times.
2. Replace or adjust fan cover; inspect motor fan and
replace if damaged.
3. Disconnect power, and use an ohmmeter to check
switch terminals for continuity, and replace switch
if required.
4. Replace start capacitor.
5. 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, and replace extension cord.
2. Replace or adjust fan cover; inspect motor fan and
replace if damaged.
3. Install correct fuses or circuit breakers.
Vibration noise while
machine is running; noise
changes when speed is
changed.
1. V-belt cover loose.
2. V-belt cover bent or dented and is
making contact with motor pulley
or V-belt.
3. Bad spindle bearing(s).
1. Tighten the four screws securing V-belt cover;
if necessary, install a soft, vibration dampening
material between V-belt cover and headstock.
2. Remove V-belt cover and inspect for dents, bends,
or indications of rubbing. Tap out dents with rub-
ber mallet, bend back into proper shape, or shim
away from the motor pulley.
3. Replace spindle bearing(s).
Vibration noise while
machine is running; noise
remains constant when
speed is changed.
1. Dented motor fan cover.
2. Bad spindle bearing(s).
1. Replace or adjust fan cover; inspect motor fan and
replace if damaged.
2. Replace spindle bearing(s).
Troubleshooting
Motor & Electrical