Boxford TCL 125

[inee]

Hi
on the pic with the relay, Lift the lid and move the red lever to the opposite side, then switch power on ,try the spindle reverse again. hopefully it will run.
If you hear a clock again don't worry as its probably the relay switching back to fwd, if it does then power up then lift the lid and operate red lever again, reverse should work. let us know how you get on with that.



the snipped wires, don't sweat over it.
The fat middle wire is an earth, the two other wires are a thermal cut out, i think it mentions it in the lenze manual
if the motor still wont reverse, unplug the machine grab a coffee. then do a continuity test on the rev switch, again let us know if it works.

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The grey sleeved wire goes to the two optical sensors one is san index pulse ,the other is for timing, if you remove the panel on the front of the lathe at the chuck end, you can see where it goes to the slit disc inside the pulley cover.
While you're at it check all the interlocks work.
Let us know how you get on, how many wires are in the ribbon cable ?


some where i have a note about connecting a bob to the boards that are already there.

The missing components on the board are mostly to do with using the 3rd stepper driver on the board for the tool changer. Boxford did some weird thing with the turret and one axis sharing the wiring.

That missing fuse is bugging me as it goes into one of the Bridge rectifiers .

[John11668]

Right !
so taking things one at a time .
I operate the stop / fwd / reverse buttons on the panel
Forward and reverse buttons both cause the spindle to operate, but both in forward direction. Both will allow speeding up of the rotation by pressing a number of times , or indeed by holding down . Regardless of whether I press forward or reverse the forward light comes on .

If I then move over the relay switch then the spindle indeed reverses, but all the switches operate as above ie both switches start the reverse motion and still it is the forward light comes on.!

I have tried been given the number of the suppliers "boxford engineer" and have tried to make contact but not holding out much hope
Not that I expect much technical help here . But he is the guy who was supposed to have proved that all the motions were operable.

Looking at the diagram you posted Inee it looks as if operation of RL3 should reverse the direction, and I presume this should happen on operation of the reverse button. I presume the switch is selecting the direction of the static position. If the reverse button starts and accelerates the motion then my logic is telling me that the button is functioning so could it be that the relay itself may not be changing over .

Or maybe I am getting beyond myself here ?? Dont be afraid to tell me if I am.

As you say the missing fuse supplies what looks to me like a bridge rectifier, purely due to its simarlarity in layout to those I see on vintage motor bikes
I could maybe sketch the connections to that