Ratchet

This one is used to let de shaftline slowly turn at appr. 1 rpm.
But: there is an internal leak so the pressurized oil (160 bar) does not have any effect and the shaftline does not turn...
The new one is put to it's place already (quit difficult through a small manhole) and now we are waiting for a replacement for a hydraulic high pressure hose because that one did not survive the struggle...