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Yep, they can be a pita. Glued! Morons… He did the manual jumper method I described above and when he went H-B the jumper got hot in his hand, so something is pulling excessive current somewhere. When we last spoke he was working on looking for cross wiring between the solenoid wires To...

That black cover should slide back to expose where the wires are soldered into the pin cups.

That looks like a weak or high resistance electrical/ground connection to the coils of the PCU solenoids. A bad connection will pass full voltage, untill you pull current thru it. On a relay or solenoid coil it sees full voltage, and starts to build a field to pull in the contacts or plug...

A complete set of the military A0 manuals can be found in the manuals section here on steel soldiers. These include the 3116 engine manuals… As mentioned the driveshafts are steep and spin too fast. This in itself makes vibrations, any issues with the shafts make this worse… most of these...

Welcome to the dark side:)

yep, pretty sure you can talk to all of them with the correct interface…

Yes…

The filters are on the tire side of the wheel valve, so restriction there would only effect the speed at which the tire inflates or deflates, not valve operation. any restriction would have to be on the truck side of the wheel valve to effect valve operation. Air comes in from the truck and...

It is probably not the transmission. Spinning it at lower RPM would probably cause a little less gear friction heat, but the heat generated is more a factor of the load placed upon the gears, and that is really a factor of the work they are being asked to perform. If the truck is the same...

Well the rubber glove test isolates it to just the one wheel valve, and you can add air to the wheel using an air chuck at the wheel schrader valve to see if it is having trouble sealing at higher pressures… but in the end, the vented air must come from a tire thru that wheel valve…

Well the quick release valves don't “open” they are pressure regulators. They match the output port(tire side) to whatever pressure is applied on the input(PCU side). it does this by passing air from the input port to the output port if that pressure is greater, or venting output port air to...

Sorry, was going to type this, his user name is Plasa...

5 solids is an unrecoverable internal fault. You can try hitting it with a hammer, but beyond that it is now a paperweight. Mine was the same, I used 3 switches, a relay and a pressure gauge and control it manually. Search electric over pneumatic manual ctis, also have videos on utube under...

I dont think the troubleshooting guide goes as far into it as you have. They the assumw the controller is ok, so they say If 5v from controller is ok, replace the sensor. Was recently helping someone with a failure and worked our way to the pressure sender also...

I wonder what procedure he was following? The only place I have seen the ream process employed was after you replaced the cups to provide a smooth properly angled surface at the correct depth after the new raw cup has been pressed into place. But unless you detect damage, once the...

Well a 24p manual might show you if there is a difference in part numbers on the PCU components between the different trucks. I would not think there would be though, as the relief pressure really needs to be that low(just above the pressure that opens the wheel valves) to deliver the fastest...

I believe they are absolute so at .05v per PSI, 14.something psi atmospheric pressure should yield .7 something volt return. Dont forget garbage in=garbage out. Those voltages above assume a proper 5.00v input. A different input would yield a different response per pound when divided by 100...

You should be able to probe the sensor wires to see ground, 5v from the controller and whatever the return voltage the controller is seeing coming out of the sensor. Of course it needs a good wiring path between controller and sensor…

Ok, that was one of my other questions, does it fill to the correct pressure. It uses a 0-5v 0-100PSI sensor. It has 3 wires. It gets ground and 5VDC from the controller and it returns 0-5v to the controller based on the pressure it sees. when you were working on the PCU did you remove the...

That doesn’t sound like a very aggressive deflate. it looked like it ran a full deflate cycle then faulted as it checked pressure. If that relief were partly plugged, it would not vent the manifold down to that low 6-7 PSI. The dump valves dump based on pressure differential, if the relief...