Can't find the list of parts to go 12 volt only ? help.

[1951M1078]

Can't find the conversion list for going 12 volt only on my M1078.
Anybody ?

 

[NDT]

That would be easy were it not for the 24 volt requirement of the WTEC control.

 

[1951M1078]

Dam it !

 

[Blairg]

Actually pretty easy to do I think. Plenty of step up convertors to take it from 12v to 24v. I had researched it when I had a Unimog 1300 that had 24v. Found it was easier to add a 24v to 12v convertor to add 12v items.

Blair

 

[1951M1078]

I went up to Overland Expo and on the way back my 12-24 system went wonke again. Just sat at 23 +- all the way home. Then the next day it was back to twitching from 24 to 28. This was the way it has been after replacing a voltage regulator. Had forgot about the trans controller needing 24 volt. I am just getting to the point of using it more often and do not want problems on the road.

I will go back and take a look at the battery's and grounds.

Thanks for the input.

 

[simp5782]

Just fab up a bracket based on the MTVR ac bracket to add an additional alternator and ditch the military one and run strictly brushless units and be done. Should be under $500 for Delco 24v and 12v alternator along with the fab work for the bracket. Alternators would be side by side


You could easily put a 33si 24v in place of the current alternator and a 23si alternator on the side spot.

 

[NDT]

Don't trust your voltmeter! Mine reads zero, 22, 24, 28, 34 depending on how hard you tap on the glass. Verify with a known good vom at the power points near the PDP.

 

[1951M1078]

Good point. I'm installing a USB that has a meter in it maybe it will help with the gauge ? But it will be on the 12 volt side.

 

[simp5782]

Good point. I'm installing a USB that has a meter in it maybe it will help with the gauge ? But it will be on the 12 volt side.

https://powerwerx.com/panel-dual-vo...hvYJjvIA5e2qURrLa75d1ataCZ7FOPFkaAn8REALw_wcB

 

[1951M1078]

Maybe do that to replace the stock gauge ? Thanks.

 

[Ronmar]

Check all your connections between alt and battery. The reg on the dual volt alt acts weird if it doesn't see what it thinks it should in terms of battery at the end of the line.

A little research indicates that the WTEC can run on 12V. All the low volt alarms are set below 12V. There are part numbers for 12 and 24V Vehicle Interface Modules. The 24V VIM actually uses the term voltage regulator in its title...

CTIS is still 28v...

 

[1951M1078]

Your in a higher pay grade than me. Thanks for the info.

My CTIS is now manual.

 

[Ronmar]

Forgot to mention that you should also check the excitation circuit. A bad relay contact or connection up in the PDP could keep the alternator from ever being enabled, or to be enabled intermittently...

 

[1951M1078]

Did the swap to the fuel valve.