109 Dutch 24v diesel lights switch Military

Looking for some help i have 109 dutch spec diesel lights have stopped working it has the old style rotary switch in the center of the console part number 589951 the indicators work only when its in the TAG / off position nothing in anywhere else there is a center pin that pushes in does that do anything there is voltage going to the unit double brown and blue i'm going to flash the other terminals and see what lights up if anyone has any information on these switches / circuit diagrams /Dutch military spec wiring diagrams etc it would be appreciated ( believe me I've looked) i want to try all options before i have to find and buy a new switch 300+ pounds i want to keep it original

Hi.
I have a 1984 109 FFR Petrol. I had much the same problem with mine over the Christmas. Checked all the usual stuff including the Indicator Stalk. I could not find the fault. Everything else was working including the Hazard's. I suspected it might be the Flasher Unit itself. I left everything in place and bought a 24 volt tractor Flasher Unit, 3 Pin, from the local motor factor and connected that directly to the Indicator Stalk and a separate Pilot Light. Working perfect since. It only took about 30 minutes to do the job. Worth a try.
Regards.
Chris.

ANY IMAGES OF CONNECTION ON SWITCH SHOWING TERM NUMBERS COULD BE SIMILAR TO WOLF

First thing I'd do is remove the switch and test it with a multimeter. That way you will know it is either the switch or not. If not, move on to checking the wiring. If it is a 6-way switch it is likely to be the same type as a British Army vehicle of the same vintage. A British 24v wiring diagram may assist in checking the wiring. Try eBay for British Army 24v manuals.