Received the 5 new seals on Tuesday. Total invoice including shipping costs $22.40.
I filed the scratches on the valve, greased up the seals and managed to slide them on valve into the correct grooves, took out the plug on the cap so I could slide the valve down into the cap (if I didn't air pressure built up wouldn't allow me to slide the valve all the way into the cap) and then greased up the whole regen valve and stuffed it back up into the main valve and tightened the four bolts. A piece of 1" pipe about two foot long worked good for pushing the regen valve back up into the main valve. It's a tight squeeze up in there. The whole job didn't turn out to be half as bad as I thought it was going to be when I first looked up at the under side of the main valve.
I started up the machine and moved the jaw on the shear back and forth a little bit and then checked for leaks around the reinstalled valves, which there were none. I then grabbed a cold beer out of the refrigerator and turned up the RPM's on the old CAT and proceeded to try out the shear.
Holy Crap, this thing will cut though anything now. I can cut though stuff I couldn't cut before even when the machine was cold. When the guy I talked to at Genesis said "that shear should go through two or three I-beams at a time without any problem" he wasn't kidding. So I'm thinking OK the hydraulic oil will warm up and the shear will start losing pressure soon. Well it was over 90 degrees outside and it actually took longer for the oil temperature to come up than it did before when the outside air temp was much cooler. I would imagine this was because the hydraulic oil bypassing the regen valve before generated a lot of heat which is not the case now. The oil temperature got up to three bars on the gauge and the shear was cutting good, four bars and still slicing throw anything I could fit in the jaws.
Hats off to Per Eriksson for diagnosed this problem to the T.
I just wish Sargent's Equipment would have spent more time testing this machine before they sold it and not lied to me when they said they ran the machine up to temperature and tested everything and the shear works just fine. A few seals and an hours worth of labor wasn't worth losing a potential repeat customer. I will never buy another piece of equipment from Sargent's Equipment after what I experience with this one. I'm just glad I didn't send the shear cylinder to them to have it rebuilt. I would have had $2500.00 plus shipping costs invested in that and it wouldn't have fixed the problem. Which I'm almost sure they wouldn't have reimbursed me for when it turned out to be 5 O-rings that cost $15.00.
Thanks for everyone's help. I'm glad you enjoyed the thread. I'm hoping to make a video of the shear in action and when I do I will post it here for everyone to enjoy.