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I did come across a point to point table for all the airlines In the manual and page number circled in this picture. The following pages have Drawings and tables that list the hose name and its start fitting and end fitting With numbers to identify their location on the chassis.

I don’t think there is an overall system diagram/as built drawing . They have a bunch of Localized drawings in the repair manuals associated with the replacement of each specific component. And in the 24P manual(parts exploded views) but they don’t show an overall layout. The 24P is handy for...

You need to re-learn the shift points. You can also re-calibrate the throttle position sensor at the same time. Make sure the hand throttle is all the way down. turn on the main switch, wait till the trans display/TCU indicates neutral then turn off main switch. Do this on/off sequence 5 times...

There is no room to relocate THAT tank in front of the engine. It is NOT an overflow tank it is an expansion tank. An expansion tank is integral to the cooling system and pressurized. It also has the pressure cap so it must remain as the highest point in the system to purge air and allow for...

K1 and K2 are not located in the power panel, and unfortunately I don’t know exactly where they are located. Since their function is to switch 12 and 24 right back into the power panel I wouldn’t think they would be far away. Perhaps under the dash behind the passenger kickpanel... Sure you...

Ok, so you have battery 12 and 24 at the power panel, but Ignition 12 and 24 are missing. Now my first rule of DC troubleshooting is that no voltage is good until it is tested under load. A bad connection can pass full voltage thru the circuit until you try and pull any current thru that bad...

???

Ok, There is no way park air should be able to make it to the front cans. it sounds as if you have some hoses criss-crossed. With the cab tilted, you can step in between the drivers tire and the frame. on the inner fender/cab wall between drivers step and steering box there are three 2-way...

Adjust the air up some more. The governor should cut out with the wet tank pressure between 120-125PSI. You should use a gauge on the wet tank to do this. What service brake valve had air escaping from vent? The service relay over the rear axle? Air coming from the vent behind the center of...

Well if the pumps are moving fluid, then at some point in the system the supply is passing fluid to the return and failing to build pressure. The only pressure relief valves are in the pump units themselves and there are check valves after them so I don’t see that as being a problem. air is...

And before you try the hand pump, first make sure it has fluid in it:)

Love those metal Quonsets... Nice battery box!

I don’t know of anyone making them, they are pretty simple to make yourself...

Dam!

I have seen the TV 400 listed as a replacement for the MRAP wheel valve. I think the threaded base is 1/8 NPT... As mentioned the port on the LMTV CTIS wheel valves I have are just about the size of the Schrader stem. I am thinking they are 1/16” NPT. That combination is not so common and...

Reach in there with a prybar and see if you can rotate the ring gear...

Yea, what Spankybear said, electric gauges Are useless untill they are powered. Could be weak batts, but it needs enough 12v to close the relays to even crank... could be no fuel in the gallery, could be a bad run solenoid, could be as simple as a 4 pin relay in the 5 pin slot for the start...

https://www.steelsoldiers.com/threads/my-tip-for-spare-relays.198790/ not made in USA, but not made in china either...

Yep, 5 pin for all... why they specced 4 and 5 pin relays without making their sockets non interchangeable was stupid... like the different color cases. add some drops of grey and black paint on the PDP under where each relay plugs in, and you have almost made it idiot proof.

That schematic is near the back of all the 20 series manuals 20-1 thru 20-5. In 20-1 it is about 1650 Pdf pages Into the manual. In the 20-2 it is about 1350 pages, right before the sample change forms all the way in the back...