OTC was the supplier of Cat tools from the early 1930's. I have most of the Cat tool catalogs if you can give me some P/No's for any track press tooling you do have.
There were several different pumps, and several different hydraulic rams. There were 50, 70 and 100 ton presses, and the design of the pumps changed 2 or 3 times over the decades.
There are adaptors for pressing pins and bushings, adaptors for final drives and sprockets, and adaptors for a dozen different other jobs.
The amount of tooling available for these presses runs into the hundreds of different adaptors, collars, puller legs, nuts, and spacers. Each tractor usually requires a different set of tooling.
Not the first time a Cat field serviceman of less-than-adequate skills, turned up for a final drive job, and he'd forgotten some vital components of the tooling, such as the right adaptors. The top class servicemen didn't forget, though.
I'm just about done overhauling a Cat track press pump. It was a complete mess when I got it. The lid had been let come loose, and the oil reservoir contained two handfuls of dirt, and at least the same amount of water.
The seals all leaked, the gauge was frozen, and the gauge glass was pockmarked with weld slag. The pump reservoir was badly dented. Some people shouldn't be let near good tools.
This pump is a late model pump, it's built by Power Packer of Berlin WI, for Caterpillar. Not sure when OTC lost the contract to supply Caterpillar, but I recall Snap-On being a Cat tool supplier back in the early 1970's.
The pump came with a 150 tonne Enerpac ram, which is in pretty good shape, although not part of the original setup. I need to acquire the proper Cat ram.
I tore it all apart, cleaned it all out, bought all new seals for $26.00 (from my local seal supplier - Cat wanted $275.00 for a set of seals!!), and took the gauge down to a local, reputable gauge repair shop, who reckon they could repair any gauge.
I put the gauge on the counter, and the guys in the shop all looked like stunned rabbits, and said, "We can't repair this!". I said, "Why?". They said, "Because it's got a crimped retaining collar holding the glass in! We can't repair anything like that!"
Well, talk about walk out in disgust! I went back to my shop, levered the crimped edge back carefully, working all the way around - and carefully eased the metal retaining collar that holds the glass, off.
I carefully prised the needle off, unscrewed the screws holding the gauge face in place, and then unscrewed the screws holding the rack & pinion gear mechanism that spins the needle, in place.
I removed all this gear mechanism, which was corroded and jammed with verdigris. I soaked the mechanism in a jar of CLR (Calcium, Lime & Rust remover - a household cleaner), and then sandblasted the inside of the gauge housing.
Saw my local glass cutting man, and got him to make me a new glass for the gauge. Made a new gasket for the glass, and then reassembled all the freshly-cleaned components, with some CopperMaxx gasket sealant sealing the gasket.
Popped the retaining collar on, put the gauge housing and collar in the vice, with soft face jaws, and tightened the vice until the retaining collar was nice and snug.
Then I carefully went around the retaining collar, with a flat end punch, and tapped the crimp back down on the collar, until it was good and snug.
The finished gauge looks like a factory job, and testing shows it works just fine. It looks like I don't need no fancy gauge repair shops that can't do what they advertise, anyway - I can do it all myself.
