Hi all, I think I will be replacing my loader valve soon and I want to be sure I understand how it works. My hydraulic system runs from the tank to the pump to to loader valve to the 3pt hitch back to the tank. If I replace the 2 spool loader vavle I will need a power beyond sleeve right? Will an open center work? Thanks. Kidney
hydraulic loader valve question
- Thread starter kidney
- Start date
MadReferee
Elite Member, Rest in Peace
- Joined
- Apr 28, 2003
- Messages
- 3,741
- Location
- New Hampshire
- Tractor
- Kubota B2710, IH TD6-62 dozer with Drott 4n1 bucket loader
It would help if you filled in your profile so we could see what make of tractor you have.
However, even without that information I can answer your two questions based on the fact that 99.99% of all CUTs and SUB-CUTS are the same, hydraulic wise.
1. Yes you will need a valve with power beyond. The sleeve will be required depending on valve design. Most loader specific valves have been designed with power beyond capabilities permanently built in. If the one you are looking at was designed for applications with or without power beyond then the sleeve is necessary.
2. The valve MUST be open center since your hydraulic always pumps when the engine is running.
However, even without that information I can answer your two questions based on the fact that 99.99% of all CUTs and SUB-CUTS are the same, hydraulic wise.
1. Yes you will need a valve with power beyond. The sleeve will be required depending on valve design. Most loader specific valves have been designed with power beyond capabilities permanently built in. If the one you are looking at was designed for applications with or without power beyond then the sleeve is necessary.
2. The valve MUST be open center since your hydraulic always pumps when the engine is running.
JerryG
Super Member
What is the reason that you are wanting to replace the valve?
MadReferee
Elite Member, Rest in Peace
- Joined
- Apr 28, 2003
- Messages
- 3,741
- Location
- New Hampshire
- Tractor
- Kubota B2710, IH TD6-62 dozer with Drott 4n1 bucket loader
That valve will work. I am pretty sure the loader (it's a Koyker right?) on your KAMA uses a power beyond valve. If it has 7 hoses connected to it then it has power beyond (4 to loader cylinders and 3 back to tractor).
JerryG
Super Member
Those are pretty good reasons. Once in while we get someone that wants to change one because it is leaking. When all it needs is o-rings. /forums/images/graemlins/crazy.gif