This is the 1969 version of the separator (NSN 2530-859-7279). The treated air is used for pressurization of cab/engine components and brake drums.
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
Nice old-school separator! Do you get much moisture out of it when you dump it?
Don't run the truck enough to notice anything yet. The system has a factory installed alcohol evaporator, so there is always a trace of moisture/alcohol in the air tanks since I have the jar filled to some extent at all times.
The CTIS on your truck may be more sensitive to dirty air then anything on mine, though.
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
Thanks Neil. Hope you are enjoying that 109. Hopefully we can do that outer banks trip next year that we've all been talking about and get us all together.
__________________
Chris Stansbury, founder of Chris' CUCV Homepage in 1998 and Steel Soldiers in 1999.
1985 AMG M998 HMMWV, under the knife
1992 BMY M925A2 - TRADED!!
1991 BMY M923A2, SOLD
I have been searching for air brake chambers with no real success. People either wanted too much money for the chambers or had them listed in the system, but didn't have any on hand. I went to my local NAPA Truck and showed them what I was looking for. Out came the huge Bendix book. He took some measurements and found a match. Problem is Bendix doesn't stock them so it would be a custom run and could take a month
I decided to try my hand at rebuilding a chamber. I ordered a couple of new actuator diaphragms from NAPA for around $3/piece. I tore into one last night to see what I had to work with. That sucker was full of rust! Thankfully, Rockwell painted their brake chambers on the inside too so most of the rust scale came right off. Once I had it apart, I took it to the kitchen sink and scrubbed all of the parts with a brass bristle brush. I got it looking pretty nice so back to the living room for reassembly (yes, my wife is understanding and working on truck bits in the house is nothing new ). I installed the new diaphragm, stuck the high pressure half on top of that, installed the clamp ring, and torqued down the clamp bolt. Viola! An almost new brake can that you can build in your living room!! I only wish I would have brought the other one home too. Now, I have to redo it on the ground.
Just in case anyone needs to know, the brake chambers are Type-12 Wedge Brake Chambers and they take a Rockwell 2297D2448 Diaphragm (or Midland N-20166 T-12). There is only one moving part inside the chamber and that is the actuator rod which is machined out of heavy steel so there is very little to go wrong with these things.
Here are some photos of course!
__________________
Chris Stansbury, founder of Chris' CUCV Homepage in 1998 and Steel Soldiers in 1999.
1985 AMG M998 HMMWV, under the knife
1992 BMY M925A2 - TRADED!!
1991 BMY M923A2, SOLD
You learn a lot when you can't get a new one. Been there, done that sort a thing...again and again.
I suspect that even the parts truck would have questionable replacements.
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
You learn a lot when you can't get a new one. Been there, done that sort a thing...again and again.
I suspect that even the parts truck would have questionable replacements.
Very true! The parts truck was in the same shape because the air lines had been disconnected on those chambers too. At least now I know the diaphragms are good and that it's been done right. The more I work on the air brake system, the less intimidating it becomes. I didn't have to do much with the brakes on the 923A2 so a lot of this stuff is new to me, but it's really pretty simple once you break it down into its components.
__________________
Chris Stansbury, founder of Chris' CUCV Homepage in 1998 and Steel Soldiers in 1999.
1985 AMG M998 HMMWV, under the knife
1992 BMY M925A2 - TRADED!!
1991 BMY M923A2, SOLD
Once I had it apart, I took it to the kitchen sink and scrubbed all of the parts with a brass bristle brush. I got it looking pretty nice so back to the living room for reassembly (yes, my wife is understanding and working on truck bits in the house is nothing new ).
Using the kitchen sink as a parts washer!!!!!
And the coffe table , no doubt, as a assembly work bench!!!!
You do have a very understanding wife. Does she have a sister???
I have been following along since the start, and enjoy the updates. Keep up the good work.
__________________
Randy
M1008
M101A1
M101A2
MEP-002A on a M116A2 (440 hrs)
MEP-002A on a M116A2 (1040 hrs)
Many 67-72 Chevy trucks/Blazers
My Avatar: David Smoker (my Pop Pop) at Hendricks Field, Sebring FL. 1945
B17 in the background.
RIP Uncle Frank 6-12-2011
20 Years in the Navy. Joined in 1940. He could tell ya some stories.
Sorry, no sister, Randy! I'm OK so long as there's no grease on anything when I get done. We have a 2 year old boy at home so I can blame some stuff on him now. He likes to play on and around daddy's trucks so the grease could come from him, right?
__________________
Chris Stansbury, founder of Chris' CUCV Homepage in 1998 and Steel Soldiers in 1999.
1985 AMG M998 HMMWV, under the knife
1992 BMY M925A2 - TRADED!!
1991 BMY M923A2, SOLD
). I installed the new diaphragm, stuck the high pressure half on top of that, installed the clamp ring, and torqued down the clamp bolt. Viola! An almost new brake can that you can build in your living room!! I only wish I would have brought the other one home too. Now, I have to redo it on the ground. 
