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Yep, that should work...

2 will be fine...

Very Cool Christian!

My spare strap hooks to that cross-pin just inboard of where the hydraulic cylinder attaches. Do you need dimensions for that? I can get some once the snow melts back a bit:)

Oh, whats the temperature? Could the brakes just be frozen? Ice forming in a wheel valve could also possibly make one leak...

Well tire deflated could be a bad wheel valve... I dont understand what exactly you mean by “hiss mixed in the hydraulics”... well that second pic shows an air hose with a fitting just hanging free below the power dist panel. Looks like a line that would run to either the fan control or axle...

Yea, there are some folks on here who have described how they “fixed” the valves...

Cool, sounds like you are closing in on it. Using your gauge were you able to determine if your patched protection valve was responding consistently? if it isnt, that could be part of the issue(valve closing off air before the switch opens telling CTIS that tank pressure is low)... Could also...

Yep sounds like the protection valve has issues. Have you disassembled it yet? I think it has 4 small bolts to separate the housing. Sean Fillner did a short youtube video on overhauling one in his Abel LMTV build series. It basically works like the wheel valve just with an adjustable spring...

For your flat tire, this is a simple check for a leaking wheel valve and what it looks like when it leaks. I had a tire that would slowly loose pressure. With the tire inflated, I removed the banjo bolt and slipped a rubber glove over the banjo fitting and sealed it to the end of the hose line...

The tank will fill to 120 PSI as long as the CTIS and cab air lines are not dumping all the air:) if those lines are open the tank wont get above 85 psi as the protection valve will send all the air over 85 PSI there. Right above the protection valve is the CTIS pressure switch. It is open...

It is not a regulator, it is a protection valve. It only allows air out to those 1/2” and 1/4” lines(ctis and cab air suspension) when the wet tank pressure exceeds 85PSI. If the pressure drops that low it stops sending air to those accessories and saves it for the brake system. You need to...

In the back of the 20-1 thru 20-5 manuals there are schematics. The air system drawings are in there with the rest of the electrical info. If the power steering is bolted on the back of the compressor and gets its drive from the compressor. if it is working that means the compressor is at...

Thanks, it looks like the Baldwin BF1222 is also an option which has a beefier/larger 4 point star wheel on the drain valve that is easier to open and secure by hand. I use a version of these on the diesel gensets I service and they work well. FYI, if your fuel system is draining back, in...

Well the operators manual dosnt say anything about releasing a lock to lower the cab...

Ok interesting result this morning. Greased the control cam and inside the rod end and cycled it in the rod end a bunch then wiped off what grease was squeezed out. I Re-torqued the nut and bolt and lowered the cab. When I went to raise the cab again the cam rotated in the rounded portion...

Looking at the 24P manual page 254 you will see part #4 is supposed to slide around in the rod end. Chapter 19 in the -20 manuals(page 19-49) shows these component interactions a little better. Part #4 on mine appears to be stuck in place at the bottom of the slotted rod end. There are flats...

You would want to source the rubber seal material first so that you can cut the lip to the proper dimenion to match the frame groove in the rubber seal... You could also probably do it in plexiglass. Not as scratch resistant, but it also won’t shatter when one of the hands hucks a tie-down hook...

Yep, set the selector on the hydraulic panel to “cab lower” and pump it down past the balance point... oh, and with a stepstool, it is not too difficult to reach in the open drivers door to hit the main and starter switch...

Well if my math is any good, 75PSI is 136% of 55PSI. So the 20PSI sand setting X 1.36 should net you something under 27PSI? Interesting mod. Is that new sensor the same physical size as the one you took out? On my PCU the sensor is installed on the front side screwed up into the valve block...