Found this on Youtube, not my video, but many parallels to my youth, thoroghly enjoyed it.
https://www.youtube.com/watch?v=T2ojItB-jVY

Well Eddy I ordered rust blast, curious to see how well it works, I want to neutralize all the rust on the cab of my truck before the maybe rainy season, since the old gurl will live outside this winter. No rust and some paint would be a good thing. Looking forward to using the stuff.

Thanks, those are way cool. It actually looks like each spring chamber has it's own quick release valve built in

Here's part of the patent.

H.S.Blake
1971 IH VCO(T)-190 Leach 2R Packmaster
Fawnskin, CA 6,750 feet above tidewater

Presto lol

You finally caught on....It was Berg's intent so anybody with no tools could do it .

Y'all just post away, never to old to learn something. About these chambers, what one earth are these 2 sheetmetal fingers on top for? There has to be a reason for them. I'll be darned if I can figure it out, unless that is how you spin the nut that will screw the caging bolt in or out. Gonna have to try that

Yes, and it is much better when units are stored in the "caged" position, the spring is not held compressed.

Because turning out the bolt removes the pressure from the push rod and allows the service chamber spring to retract to released position. It does not actually cage the power spring.
 edit: (at least on the MGM design.)

 Sorry,I hope I'm not hijacking your thread like I've been accused of in the past!

H.S.Blake
1971 IH VCO(T)-190 Leach 2R Packmaster
Fawnskin, CA 6,750 feet above tidewater

aw12345 (10/14/2016)

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It has a funny setup to uncage the can, stud sticks way out seems like you turn a captive nut on the can it self, but it's a odd size between 1" and 1 and 1/16" plus it's frozen. Will fudge with it some this weekend
Be aware on those type you turn the bolt IN to un cage and out to cage. If the bolt is sticking way out of the chamber it is caged.
 Piston types (of old, not the newest) ARE rebiuldable. You need to use a press before you remove the snap-ring to gain access to the piston.