Southbend SB1014F specifications Tr O U B L E S H O Oti N G

EVS Toolroom Lathes TR O U B L E S H O OTI N G For Machines Mfg. Since 7/09

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.

Symptom

Possible Cause

Possible Solution

Machine does not start or a circuit breaker trips.

1.(First time operation only) Lathe is wired out of phase.

2.Emergency stop push-button is engaged or at fault.

3.Spindle ON/OFF switch is at fault.

4.Power supply is switched OFF at main power switch or breaker.

5.Wall fuse/circuit breaker is blown/ tripped; short in electrical system; start-up load too high for circuit.

6.Fuse has blown in machine electrical box due to thermal overload.

7.One or more kill switches are engaged.

8.Thermal overload relay has tripped.

9.Motor connection wired incorrectly.

10.Oil pump motor operating, but no oil is seen pumping in sight glass.

11.Limit/kill switch at fault.

12.Contactor not getting energized/has burnt contacts.

13.Wiring is open/has high resistance.

14.Motor is at fault.

15.Frequency drive unit is at fault.

1.Correct out-of-phase wiring (refer to Page 17 for details).

2.Rotate button clockwise until it pops out to reset it for operation; replace if not working properly.

3.Move the spindle ON/OFF lever to ON; replace bad switch.

4.Make sure main power switch and circuit breaker are turned ON.

5.Verify circuit is rated for machine amp load; troubleshoot and repair cause of overload; replace weak breaker; find/repair electrical short.

6.Replace fuse; determine if overload is due to heavy operation; ensure power source has high enough voltage and cord is correctly sized.

7.Verify electrical box door, chuck guard, spindle, and brake switches are not engaged. Verify that headstock oil is pumping.

8.Turn the thermal relay cut-out dial to increase working amps and push the reset pin. Replace if tripped multiple times (weak relay).

9.Correct motor wiring connections.

10.Clean clogged tank suction screen, fill headstock oil tank to full, or replace oil pump.

11.Test all limit/kill switches and replace as necessary.

12.Test for power on all legs and contactor operation. Replace unit if faulty.

13.Check for broken wires or disconnected/corroded connections, and repair/replace as necessary.

14.Test/repair/replace.

15.Contact frequency drive manufacturer for list of authorized service providers in your area.

Loud, repetitious	1.	Pulley set screws or keys are	1.	Inspect keys and set screws. Replace or tighten if
noise coming from		missing or loose.		necessary.
lathe at or near the	2.	Motor fan is hitting the cover.	2.	Tighten fan, shim cover, or replace items.
motor.
Motor overheats.	1.	Motor overloaded.	1.	Reduce load on motor.
	2.	Frequency drive unit is at fault.	2.	Contact frequency drive manufacturer for list of
				authorized service providers in your area.
Motor is loud when	1.	Excessive depth of cut or feed rate.	1.	Decrease depth of cut or feed rate.
cutting, or bogs	2.	Spindle speed or feed rate wrong for	2.	Refer to the feeds and speeds charts in
down under load.
		cutting operation.		Machinery's Handbook or a speeds and feeds
				calculator on the internet.
	3.	Cutting tool is dull.	3.	Sharpen or replace the cutting tool.

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