Is it possible to get a replacement block, without buying a whole control valve? SN:9319. Compensator valve is wore out.
good day That appears as a segmented MCV must be possible too get one slice, as interest how have you arrived at the replace the compinsater valve? Kind regards Uffex
We ran through the service manual checking pressure. We rebuilt the pump, and are getting spec pressure out of it. We were still getting very slow cycle times when using two functions simultaneously. We pulled the relief valve out and it had a broken o ring And broken ring, we replaced that. Still getting slow cycle time when operating boom, stick, and bucket curl. The main boom moves in half the speed it should be, you have to operate the arm and bucket at half the speed of the boom for all three to work simultaneously. The boom up function is slow.
Good day I may be going over old ground but have you checked that the option spool is de-activated. Kind regards Uffex
Yes, you can buy the pressure compensator separately but usually, we re-polished it so it can be reused. As you can see here: https://k-part.com/#?k=!0!1!3170!353!430
All pressures are good, safety is good, compound operation boom is slow and compensator has scars on it. Singular operation speed is correct with exception of hesitation at the very start, spool is not damaged nor scratched and moves freely in block. Boom assist valve is functional and does not hinder pilot oil. Pilot oil pressure is good and ppc lever output is correct as well
Contaminents must have gotten into the system, which caused the pump failure. Not sure which came first, the pump going out then the CV getting worn, or vice versa. Regardless, the use of multiple functions is slow, and we don't want to run the machine in case there is still contaminents that can get back and damage the recently rebuilt pump.