Hello. Wondering if anybody would be able to help me out with a wireing diagram of the Detroit Allison 24v electric manual shifter for a allusion 6-5000 series trans. Long story short the old shifter went bad and we were to find a replacement but I think it might have been reconfigured. Any info is greatly appreciated.
Dam you're about five years too late! Where I retired from back in 2015 we had several trucks with those transmissions. We had a test box that you could attach to the shift tower and go through each gear step by step and check all the switches to know if one or more was not activating when it should. It would also test the coil for the downshift block-out solenoid and even the light bulb for night running.
You could also plug it into the cable to the transmission and test the solenoid valves in the valve body and then connect it direct to the valve body and test again to confirm the problem was not in the harness! Might take half an hour to go through all the tests!
Trying to remember if there were 8 or ten micro switches in the shift tower. I know many times I would disassemble them and replace the switches. One time we ordered a new switch assembly and the price was outrageous! I did some searching and found I could but the individual micro switches from Graingers for some thing like $1.50 each and in less than an hour replace them all and 95% of the time have a like new switch assembly for less than $50.00 when I think a switch assembly went for $500.00 from Allison!
One thing you need to be careful of is Allison used the same basic shift tower on many different transmissions from the 5000 series up to the 8000 series. Problem is the cam in the various switches were different and also the way the various micro switches were connected inside the shift tower. So even though on the outside they looked identical and would hook up to harness they would not work.
One more thing that can bite you is the solenoids in the control valve besides being different from 12 volt to 24 volt systems at least back in the 1990s or so there were some that were polarity sensitive. In other words if you swapped a transmission from a negative ground truck into one with positive ground depending on the age of the solenoids they might not work even though everything else in the transmission was identical. And trying to get answers on that from Allison at least back then was like trying to get the launch codes for a nuclear missile!
Depending on how things go the next couple days I might try contacting my old boss to see if there is a chance he would let me borrow some old books assuming they have not been tossed out since I retired. I don't think anyone still working there would have the faintest idea of what a CLBT5860 Allison was they went pretty heavy over to Cat equipment that last ten years I was there.
Have you tried searching online to see if anyone on Ebay is selling a 5000/6000 Allison service manual?