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I fit toyota tacoma/4runner handles without too much modification.

TO TEST IF YOUR EMERGENCY BRAKING INVERSION VALVE/SYSTEM IS WORKING: This will work better with two people. On level ground, chock the wheels, start the truck and fill the air tanks(dryer purges). Apply park air/release the parking brakes and shutdown the engine. Open the tank drain and release...

the 2 batteries are wired in series, which creates a 24v battery. with 24v applied from a 24v alt, both batteries are charged equally with nothing drawn from the middle of the batteries. under normal conditions 12v from the battery would be disconnected and 24v would be used to create the...

Well I don't have to guess, I have measured/calculated it, for an A0 truck at least:) For a 1078 with the specified incandescent light sizes and everything turned on and high beam while standing on the brake pedal ~27A @13V I measured the 24V load on my A0 truck and posted about it. Those...

lmtv mtv military trucks

Look up in the manuals section under present conflict vehicles. There is an A1 schematic there…

Yea they were sometimes called ”Tiger” teams in my service. We used to have to go “tiger hunting” after they left:)

Yea I think he used a 3 segment run-flat which would be symmetrical/balanced…

What tire pressure are you running, that might effect “sponge”. Did you check toe-in? Easy enough to do on these trucks.

Ok, now I am tracking. You may be right the 2way function to combine either pri or sec may be in the park/trailer control… on the A0 its a standalone 2way check right at eye level when you open the drivers door…

Yea like the wet tank plumbing so far, I suspect this will probably turn out to be an A0 thing. Unless you are specifically looking for it, It is up under the bed and not easy to see Unless the bed is off. i have looked at all that plumbing perhaps a hundred times, but it took having my head in...

Yes the top one under the drivers floor with the switch is where the front red glad-hand and air from the park control combine to feed towards the rear. That switch controls the park and emergency lights in the dash.. the lower two valves tied together are blue service glad-hand input to the...

Yea I think they did away with the park air controlled AOP supply valve in later trucks. I have seen one where the AOP supply is fed from one of the Ts on the wet tank. the park air control supply 2way is in the cab on the forward bulkhead In the A0. not sure where it is at on the A1s.. pri...

I suppose anything is possible but it would require elbows placed where Ts are supposed to be and vis versa not to mention the line lengths might not work out for re-attaching existing lines. It would take some extra effort to re-plumb, especially like General mentioned, usually one piece...

Yea I would say belt failure or tread sep, that or your run-flat came undone:) its AWD, if you chock the rears and leave the park brake on, you can jack up one front at a time, start up, put it in D and rotate one wheel at a time to see if anything is out of round. You by yourself? You could...

I don’t have any emergency brakes! You probably don’t have any either… Emergency brakes: someone came up with a method to use the park brake springs with pedal input in the event you loose your primary/rear brake air. Its Completely automatic, no additional operator workload. its the whole...

Well that drawing has some issues. Did they do away with the load proportioner On the A1? that low pressure warning switch in the middle of the drawing is actually what controls the park and emer lights in the dash(plumbed to park circuit). They have the dryer output bypassing the wet tank...

Wow in looking at this, i reviewed my brake component video and I just found another, what looks like from the factory, problem with my brake plumbing… Because the anti-compounding valve is not fed from the correct source, i don’t have any emergency braking capability. I wonder, if like the...

them both leaking down equally is a good clue. The primary and secondary air are tied together in 3 other places. 1. Under the drivers dash. There is a two way check valve there that samples either system to provide park and trailer control air. 2. Inboard of the service tanks there is a 2way...

Well the governor only has wet tank air at its disposal to feed the purge valve. At worst this would leak away that air, but any loss of service air is happening elsewhere…