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Well, replacing the entire assembly would be much easier, but several things to consider: 1. Diaphragms are less than $5 each 2. Used assemblies mean used diaphragms. Are you willing to risk the time to put a used chamber in place and maybe have a leak that will still need repairing? 3. Prices...

For the LMTV community (and should be similar for other wedge brake systems): I had a noisy rear left side pair of air chambers after I shut down my M1081 LVAD. You could hear air leaking out of the spring chamber (larger inboard section that uses caging bolt). The air could be heard with or...

Based on my troubles last year, the steering box, while made by ZF, does not cross-reference their commercial products. And I wasn't able to find a tear-down in the TMs either. I wound up replacing the entire box with a unit from SuprMan. You might be able to remove the box, pitman arm, and pull...

As a former Tucson resident, it normally doesn't get super-cold there. So how cold was it when you had the problem? If near freezing, check the heater on the bottom of the drier. I had my purge valve freeze open due to Maryland cold weather and water venting from the valve. Electric connector...

Thanks all for the info. I'm loath to pull the heater box to run lines, but will take a look and figure something out. I'd still like the automatic system to work, I'm going to try a few more things as remote possibilities before throwing in the towel (and money). I've got a few ideas on...

Thanks much, makes sense having to pass the lines from left to right. And much easier seeing with the markings. I'm going to try a PCU sensor, and if that doesn't do it, pull the whole mess and go manual. Though I'm thinking of modifying your setup with a single two-position lever valve. Will...

KISS is good, especially as our LMTVs are already so complex. And I like being able to up the air pressure for highway beyond the CTIS limits. I also asked the following question in the Manual CTIS thread, but this one is more active. Did you have to pull a pair of lines across the cab right to...

One question on your setup: after you pulled all of the parts and wiring, did you pull two hoses (supply pressure and pressure to tires) from right to left sides of the cab to connect into your new manual valve/gauge/regulator?

"Jinx!"

Found the link to the manual setup: https://www.steelsoldiers.com/showthread.php?152581-Manual-CTIS-Conversion-for-M-1078&highlight=

I've thought long and hard about it. My truck didn't have a CTIS computer in it when I got it, so I spent a few bucks on a used one. I suppose I could turn around and sell it and recoup my money.... Being lazy at the moment - You don't by chance have a good link to the manual system setup? If...

Update on my CTIS problem (two blinks from HWY, then all five flashing) Got the M939A2 parts kit, used everything except one o-ring and the cover plate, everything fit. Total difference in the action of the sleeve valves, they pop back when depressed. However, no change in the original problem...

Vent line is a easy check, can try the PCU without it connected, or just push air through the line from compressor. Thanks for input. Coffey1, also good to know about interchange, will keep that in mind if needs must

Interesting! Though the M939A2 -24P-2 shows two different valves: two of one, one of the other part number. I found a kit on a well-known auction site and ordered same. Will report when I receive it and reassemble. Again,thanks for the support here and there.

Actually, I get two flashes from the HWY light before all five start flashing. I disassembled my PCU this evening with the following results: Used two 12v batteries in series for 24v and tested the three solenoids - all clicked as expected. Shorted my test leads momentarily and got a nice...

A0 - "Classic LMTV" M1081 from Ft. Bragg. Small rear air chambers too, but that's a different post...

double-post double-post - ignore

Thread hijack - CTIS issue... My M1081 didn't have a CTIS ECU in it when I got it last year. I installed one, but system isn't working right (why would I hijack this thread otherwise). I'll have to check when starting the engine normally. But when putting shop air at 125 psi into the Emergency...

I like the looks of the safety tabs, but I'm thinking when I get my drive shafts done, I'm going to find some good old safety-wire drilled bolts and do it the old-fashioned way. Once learned, never un-learned.

Hmmm. Hello Kitty themed LMTV? Need this to clip into the rifle holder: https://www.blog.riflegear.com/2007/12/26/hello-kitty-ar-15-evil-black-rifle-meets-cute-and-cuddly/ And that's why my handle is "Wandering Neurons"...