Lathe Control Repair Notts/Derbys

[Swarfing]

Chas

If the whole unit will not power up or just trips straight away, you have no bare wires then suspect the transformer itself. If it is only part of the lathe that does not work then it would be the contactor for that circuit (normally just the energising coil). There is not a lot that can really go wrong, i'm wiring a new lathe up from scratch at the moment myself. What does each contactor feed? tell us more about the controls? is the contactors controlling motor, pump, light etc?

[Chas]

Chas

If the whole unit will not power up or just trips straight away, you have no bare wires then suspect the transformer itself. If it is only part of the lathe that does not work then it would be the contactor for that circuit (normally just the energising coil). There is not a lot that can really go wrong, i'm wiring a new lathe up from scratch at the moment myself. What does each contactor feed? tell us more about the controls? is the contactors controlling motor, pump, light etc?

In my picture from left to right.

Contactor 1 = motor forward
Contactor 2 = Motor reverse

Contactor 3 = coolant pump
Contactor 4= unknown

I've just found out that pushing in the contactors gets the motor running regardless of the lathes forward/reverse switch.

When I switch the lathe on, there is no 'clunk' like there used to be.

Is contactor 1 at fault?

[Chas]

First electric shock, luckily only 24v.

A small crowd is gathering . . . . I might make some smoke before the day is done.

[Swarfing]

Consider 230v contactors and do away with the 24v transformer? you may even be able to get new coils on there own for the contactors if they are removable.