5030
Epic Contributor
- Joined
- Feb 21, 2003
- Messages
- 24,597
- Location
- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
Have no idea as I have a box of them on the shelf I bought years ago.
I was inferring using a pennyHave no idea as I have a box of them on the shelf I bought years ago.
Where did you get the copper blanks? What are they called?Because I'm inherently cheap, I make my own restrictors out of appropriate sized copper blanks and drill my own restrictor holes in them the copper acts as a seal too. You can use brass as well but copper is better.
The adjustable flow restrictor is a good option, you can have free flow one direction, restricted flow the other. They don’t have to be at the valve, you can install them at the cylinder ports or in-line if needed.
The pump is original based on the parts diagram from Case. There is a HUGE oil cooler on this machine and the old hydraulic valve body had three orifices in the ports, probably to eliminate exactly what is happening.Is it possible that someone replaced the pump, and substituted a larger pump?
If this machine is a simple open center hydraulic system, those restrictors can shorten the life of the pump.
On open center systems, when the hydraulics encounter a restriction, the oil must open the relief valve.
When the relief valve opens, ALL of that pump horsepower is converted to heat.
Too much heat,, something fails.
Can the engine throttle be reduced to resolve the hydraulics speed problem?