seems like while it may be a bit of work to find available parts and interface them, this is just a hydraulic problem. And even, worst case, you need a new pump, its still a lot cheaper than a new ironworker.
Even scotchmans and edwards have gotten expensive.
and neither is a Geka.
I, too, am perplexed about the comment "american machinery with stupid asian problems"- since nothing on the new, or old, Geka's is american, or, most likely, asian.
Mine is around 15 years old now, no problems ever beyond a loose bolt on the hydraulic throw stop bar. tightened that up, and it works as new.
Gekas are, in my opinion, the best small shop ironworker for an all around fab shop.
I think the older Mubeas and Peddinghouse ironworkers may have been built sturdier, but are not as user friendly or easy to get accurate results from. And for really big repetitive work, nothing beats a 50 or 80 year old mechanical, like a big buffalo or hill acme- but they are beasts, with no provision for gaging, just lots of brute force.
If what you need is to shear hundreds of pieces of 6" angle every day, sure, a Buffalo no. 2 1/2 is a good choice.
but if you are doing all different fab shop work, the Geka is my choice.
And yours is certainly worth fixing. heck- an equivalent size Edwards is around 18grand, and a Geka is way better than an Edwards.