Problems putting a compressor pressure switch back together? It isnt easy, but possible.
My switch was leaking at the diaphram between the 4 port base - I didnt expect any real issues as I could tighten down the 4 bolts and it would be alright for a while. After looking into getting a new switch and learning more about them, I figured I'd just try to fix my existing one.
I wish I would of looked for any pics or diagrams that would show a breakdown of how the switch is laid out internally before I tried it though - I wouldn't of messed with it as, despite extensive searching, there is nothing! In hindsight, I could of just removed each of the 4 allen bolts individually and added some locktite and the pressure switch would of probably been fine.
So, if you're one of the few that has taken one of these Lefoo type switches apart - the guy who posted on 8/8/14 ('putting it back together') had some helpful info.
I have a 175 psi switch and didnt realize the spring pressure would of been so great. I did not intend to take it all apart, but after removing the 4 allen bolts, it separated from the base and I could not squeeze it back together, and trying to line up the bolt holes at the same time seemed impossible. At one point, it basically flew apart. At first, it seemed like it could go back together 2 or 3 different ways, but after looking at it closer, it can only really go back together one way.
After it first flew apart, I figured I could find a breakdown of the switch easily online - but after relentless searching, I was sadly mistaken. I did find a few pics of people who were in the same boat with their switch in pieces... Between looking at countless pics and trying to test fit it together several times - I was still a little uneasy I didnt have it exactly right, but like I said, it can only really go back together one way. While it was apart, I found some corrosion on the metal base where it met the diaphram - pretty much where it had been leaking - so I cleaned it all up.
Relieved to report that after putting it all back together and testing it out, it worked with out issue and has not leaked at all. Its taken some work to get the cut out set correctly, but other than that - it is working as it should.
Hope this might help someone.
I sure expect it will. Thank you, anonymous contributor. Bill
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