Brakes.. oh my...

[Primussucks]

ECO hub install.. Turned into CTIS and bearing seals.. Turned into brakes....

What a surprise I found.

Looking like Private Parts skipped the LO chapter!?

Whats the best source for components? Lots of broken springs...
Rust everywhere... Whats the best way to determine if the 'guts' of the canister are still good?

I'm shocked it still stopped.. The plungers were frozen.. i had to PBblast and wiggle out with slip joint pliers. The adjustable ones had to be encouraged out with a drift and hammer.

 

[Keith Knight]

Oh my…..that looks horrible. Unfortunately I don’t have any experience with these. I can only say clean and remove all the rust and crud. Then start evaluating each piece.

 

[Primussucks]

This is a great resource and what I’m following.

 

[GeneralDisorder]

Holy crap! That's much worse than what I've pulled apart so far (not done with all wheels yet) on my 2008. But all my seals were trash and I was beginning to have similar issues creeping in.

 

[Ronmar]

Wow, thats terrible!

 

[Primussucks]

I'm guessing new brake chambers, or are these rebuildable?

 

[GeneralDisorder]

I would probably replace those if I could get them. Finding replacements is the trick. If you can, get the upgraded A1R/A1P2 cans. Larger diaphragms. They brake AWESOME.

 

[Primussucks]

I would probably replace those if I could get them. Finding replacements is the trick. If you can, get the upgraded A1R/A1P2 cans. Larger diaphragms. They brake AWESOME.

Which ones @GeneralDisorder ?

I have an A1R now... I assume they are the ones you are referring to?
I haven't got the front yet, looking like the 4 rear ones are all about the same condition...

I know i shouldn't take apart the parking brake side (spring goes boom). What about the other side of the canister? Wondering if I can remove that half... clean it up, check the diaphragm, etc.

I'm new to the LTMV parts market. I know where I'm NOT buying the parts... Does anyone have a suggestion on who might have these canisters? ebay coming up short, or something that looks different then what I've got. I can find the plunger kit on ebay, but not the canister itself.

Open to suggestions... Also open to 'used' if someone has some that are in decent shape.

Thanks.

 

[GeneralDisorder]

Yeah you're going to have a real fun time trying to find the A1R cans. I would go to an air brake shop and show them what you have and see if they can match something up. Unfortunately, outside the military, wedge brakes have become a thing of the past and are considered dinosaur tech. The military uses them because they don't like the S-cam stuff with all it's exposed linkages and crap hanging off the brake assemblies. Wedge brakes are more internal and less crap to get snagged up off-road. If there's no one around you that's an expert - call these guys. They know everything about air brake systems:

Brake Systems Inc. - Manufacturers of Blue Ox Exhaust Brakes

BRAKE SYSTEMS INC. has 40 years of experience Manufacturing, Remanufacturing and Distributing quality brake components. We are ISO 9001:2008 certified. We specialize in Brake and Throttle Components, Electronic Throttle Controls, Exhaust Brakes, Blue Ox Exhaust Brakes, Air Shifters, Air...

www.brakesystemsinc.com

You can disassemble the parking brake just make sure you cage it first and then don't stand in the blast zone while working on it. It's not rocket surgery.

And while you are going though all this stuff - swap to the older A0/A1 pedal assembly and treadle valve. It really supercharges your brakes. More leverage:

A1R brake pedal valve up(down)grade.

Those of you who have not driven an A1R or A1P2 probably will not understand this post. The C7 trucks (serial #100,001+) including both A1R and A1P2 have a different air brake pedal valve and if you have driven A0, A1, and A1R you may have noticed that the A1R trucks seem to have a brake pedal...

www.steelsoldiers.com

 

[Keith Knight]

I wonder who is buying all the crashed / parts trucks from govplanet. Some must be parting these trucks out.
Actually reach out to Superman on this forum he usually has a couple parts trucks.

 

[Primussucks]

I would probably replace those if I could get them. Finding replacements is the trick. If you can, get the upgraded A1R/A1P2 cans. Larger diaphragms. They brake AWESOME.

The ones that are on that came off my truck, 07 a1r, look like this.


The ones I find on eBay are more like this. A different style. I definitely don't want to downgrade.
Thanks.

MRAP, HIMARS, FMTV, LMTV H20-3276L-12 VACUUM BRAKE CHAMBER 2530-01-363-8150 | eBay

Find many great new & used options and get the best deals for MRAP, HIMARS, FMTV, LMTV H20-3276L-12 VACUUM BRAKE CHAMBER 2530-01-363-8150 at the best online prices at eBay! Free shipping for many products!

www.ebay.com