Hello folks,
Sorry about the overly large pictures.
Here's a few pictures of my shop compressor in it's current state.
According to the tag it says "American Brake Shoe Company Kellogg Division" Model A320A. It's an antique to say the least. I'm guessing the 1940s?
This unit was traded to me in return for mechanic work on a friends truck, so i had nothing but the cost of oil into it for about 3 years.
Still running the original 1 1/2 HP single phase Delco induction motor.
The compressor that is supposed to be on there, The A320, is apart for a rebuild and due to the connecting rod bearings being a poured babbitt bearing i had to bring the crank and connecting rods to a machinist that pours said bearings. Not an easy thing to find now a days. The front seal was also leaking badly, etc etc. Whoever owned this unit before me was not very kind to it.
The rod bearing on the LP rod shows evidence of the compressor seizing up at one point. Since the bearings can't spin due to being poured in, it just chewed itself up.
The compressor has new rings on the steel pistons(both pistons were missing the oil control rings and as such it was an oil pumper) and will be getting new rod bearings and all new gaskets and seals.
The compressor assembly on there is actually a Kellogg American 325TV that i picked up today from a swap meet for $175. A little cleaning and fresh oil was all it needed. Unfortunately the old Delco motor might be a bit too small for the 325TV compressor as the original motor was a 3 hp 3 phase, and i don't have 3 phase so i didn't buy it at the swap meet as well.
There is also a Wilkerson Refrigerated Air Dryer(still uses R12) in use that was another swap meet find for ~$20.
It's not the most professional setup in the world, but it does get the job done. I'm planning on re-do all the plumbing, just deciding on what diameter i want to use(tank output is 1/2 NPT) and if i'm going to use copper tubing or not. I know PVC pipe will work, but from what i've heard there's a downside to using it.
What are these units supposed to shut down at? Mine cuts out at 150 psi, but that seems a little low for a compressor of it's size. Shouldn't it be 175?
Thanks everyone,
- Dave