Southbend SB1023 用户手册

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For Machines Mfg. Since 8/09

Model SB1023

If you need replacement parts, or if you are unsure how to do any of the solutions given here, feel free 

to call us at (360) 734-1540.

Machine does not 
start.

1. Power supply switched off/has 

incorrect voltage.

1. Switch power supply on/verify voltage.

2. Blown fuse/tripped circuit breaker 

at main panel.

2. Correct the cause of overload, then reset/replace 

fuse or breaker.

3. Thermal overload relay has tripped.

3. Allow motor to cool. If necessary, press reset button 

inside switch.

4. Plug or receptacle is corroded or 

mis-wired.

4. Clean/retighten contacts; correct the wiring.

5. Break or short in wiring; or loose 

connections.

5. Trace/replace broken or corroded wires; fix loose 

connections.

6. Motor ON/OFF switch at fault.

6. Replace switch.

7. Motor connection wired incorrectly.

7. Wire motor correctly (refer to inside junction box 

cover or manual).

8. Contactor not energized/has poor 

contacts.

8. Test all legs for power, test field coil and replace if 

at fault.

9. Motor at fault.

9. Test for shorted windings, bad bearings and repair 

or replace.

Machine has exces-
sive vibration or 
noise.

1. Motor fan rubbing on fan cover.

1. Fix/replace fan cover; replace loose or damaged fan.

2. Motor is loose.

2. Tighten any loose fasteners.

3. Grinding wheel out of balance.

3. Dress and balance grinding wheel.

4. Motor bearings worn or damaged.

4. Replace motor bearings or replace motor.

Handwheel has 
excessive backlash, 
endplay, binds, or 
is difficult to move.

1. Leadscrew is dirty or lacks proper 

lubrication.

1. Clean and lubricate the leadscrew and service oil 

system (Page 30).

2. Leadscrew or leadscrew nut worn.

2. Adjust or replace leadscrew or leadscrew nut.

3. Linkage bolts, pins, and holes are 

loose or worn.

3. Replace linkage bolts, pins, and re-bush any worn 

pin holes.

4. Longitudinal feed rack and pinion 

are worn. 

4. Replace rack and pinion gears. 

Machine stalls or 
slows when operat-
ing.

1. Motor is being overloaded.

1. Reduce depth of cut.

2. Motor at fault.

2. Test for shorted windings, bad bearings and repair 

or replace.

Motor chatters 
during startup or 
during operation.

1. Extension cord (if used) is causing 

voltage drop.

1. Move machine closer to the power source, or use a 

larger gauge wire or shorter extension cord.

2. Low power supply voltage.

2. Have the power supply verified and corrected by an 

electrician.