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Yours should be adjustable. The governor is on top of the air compressor, unscrew the white plastic cap and screw in the standard screw head a little with a screwdriver to raise the governor cutout pressure, then test it like in your video. Repeat untill it cuts out at 125...

One of the first rules of electrical troubleshooting, besides not letting the magic smoke out, is that voltage is only good if measured good under load. The tiniest fragment of a crappy connection will still pass full voltage throughout the circuit untill current starts to flow when it is...

24v at the solenoid = fan OFF. No voltage at the solenoid = fan ON.. so when you unplug the sensor the power at the solenoid should disappear, which wpuld be perfectly normal. It is also normal for the solenoid to energize when you turn on the ign switch and to de-energize and vent air every...

Yep, unplug the sender or selenoid. To remove fan air and engage the clutch, that is of course with a working solenoid...

No it should seal between purges. All the water and oil snot exit thru that purge valve it is either dirty or has a bad seal. There is a check valve on the output of the dryer to the wet tank. So when the engine shuts down the supply side including the dryer should empty.

No the air goes thru the dryer on its way from the compressor to the wet tank. It then uses the stored pressure from the compressor process to purge the separated moisture when the compressor unloads.

yep, dust plugs in the caging holes… What Keith said is a good idea, except in order to do this long term, you either need to provide supplemental air, or cage the brake springs… They will stay disengaged as long as the air lasts, but when it leaks away they will re-engage(and the park handle...

Don't put them away wet… after immersion, ride them enough to get them warm enough to dry out. If it is below,freezing, they will freeze, if they set for any length of time, they will rust/fuse…

Well if there is more than 85 PSI in the tanks. You should hear the solenoid send air to release the fan clutch when it is energized, and it should cutoff supply and vent the line to the clutch, releasing the air and engaging the clutch. You can also disconnect the airline right on top of the...

Or is it this one? :)

Thats not my power panel, i own an A0. That is a pic of the bottom of a brand new plain A1 power panel and frame. I keep it in my gallery for reference to show people where the ign relays and power test points are located when helping people troubleshoot issues. The A1 used a printed circuit...

They probably pulled the door markers because they proved to be such a PITA:) I can see where mine have been chaffed/damaged/repaired in several spots.

The 24v ign relay K1 should have 4 terminals on its pin 30. TL156, 512, 665 and 709. That is the 24v battery side. K1 pin 87 should have 3 terminals. TL157, 667 and 711. This is the 24v ign side…

CB70 is the main power feed to the main light switch. The main light switch in turn feeds several other circuit breaker circuits CB 54, 65, 73 and 74. As well as various other lights and circuits. It could be a combination of bad circuits or bulbs(does it have LEDs?) that are drawing too much...

Ok, lets start with the last one. K11 should NOT go click when when you pull it while running as it should be de-energized. It should go click when you turn on the ignition switch. 24v ign power flows thru CB77, and thru the neutral relay K26 energized contacts(30-87) to reach K11s coil. The...

Just remove the wheel on the one you cant cage:) or apply air to the front red gladhand, which is how a towing vehicle would release them…

There should be one stored in a holder on each can…

Each bag, probably around #400? cant find my absolute pressures in my notes, just the differential pressure when I was trying to determin airspring piston area. I came up with each spring having about 12sq/in of surface area. IE when I added #240 to the arch, I got a 10PSI increase in air...

Sure, Same chassis tech #2200 bags and I will start with a Gabriel 83057 shock. The original travel is I believe ~1.75” This shock has 3” total but has a bump stop on each end, #242 of compression and #364 of rebound resistance at typical velocities. So just over 2” of smooth travel between...

Yea what third said, aux cooler only used on the tractor variant with the aux trans oil cooler radiator and fans, and the work light relay only used on the wrecker trucks. The K12 worklight relay is dead easy to convert into a 12v switched ignition relay. I did a video on it on my utube channel…