Help on fault finding on a C3-31 Hammer combination machine

[EddyCurrent]

The rotary switch.

1 - L1
3 - L2
17 - L3
10 - Saw Motor U1
12 - Saw Motor V1
20 - Saw Motor W1
6 - Moulder Motor U1
4 - Moulder Motor V1
18 - Moulder Motor W1
14 - Planer Motor U1
16 - Planer Motor V1
22 - Planer Motor W1
23 - 230v control
24 - 230v control

This is how I would expect the switching to be.
in Saw position, L1,L2,L3 will be connected to the saw motor only
in Moulder Fwd position, L1,L2,L3 will be connected to the moulder motor only
in Moulder Rev position, L1,L2,L3 will be connected to the moulder motor only, but two phases will have been swapped over
in Planer position, L1,L2,L3 will be connected to the planer motor only

in all positions terminals 23 and 24 will be connected in order to complete the 230v control circuit.
It probably goes through the switch because the contact between 23 and 24 will go open circuit between positions
thus dropping the contactor out if the switch is moved while a motor is running.

That being the case it should be fairly easy, though laborious, to test it.

1. Mark up the wires securely, you don't want a label dropping off, masking tape works okay.
2. Also take however many photos it needs to be sure all the wires will go back in the same position (there may be links from one terminal to another, leave them in place)
3. remove the wires and test the switch arrangement using terminals 1,3,17 as the reference terminals, make good notes with pen and paper.
For each position of the switch make a note of;
a) which terminals are connected to terminal 1
b) which terminals are connected to terminal 3
c) which terminals are connected to terminal 17
d) state of terminals 23 to 24
4. do the results match what we think it should be ? (using the information above)

Sorry if my instructions seem childish, I've learned the hard way (many call outs through night) that leaving easy to follow unambiguous instructions is the best way to achieve success (and let me get a nights sleep, although all that is past me now)