ons 29 maj 2013, 02:23#227046
Hi mark !
If it's simular like the 678. And i think it is.The pressure should come from the servo oil that manouvers the valves for control of the grapple loader.
Around 30 bars I think. I can get you the precise value if it's necessary for you.
It is a very simple construction. Servo pressure on the little plunger and the diff locks. Realese pressure and it goes of. .
My wa s not working . I just took it apart . Cleaned the valved in the difflock lid. Polished the little piston with scootsbrite. And re mounted. Bleed for air. And full functionality. But the wheels must turn maybe a rev or 2 before it engages.
You can also adjust it with the 2nuts on each side of the diffhousing. Loosing on one side and tighten on the other . Moves the whole diff lock mechanism closer or further from engagement. Let me know If you need pics. Think I have som real life photo of my dismantled diffs.
Where in the world are you located?