Warning light

[Zhoolka]

Please advise what is the meaning of the red warning light with a black drop in a jar with two arrows pointing at the jar from both sides??? Low engine oil? Low hydraulic oil?

 

[flyerdan]

It would appear to be hydraulic oil pressure based on images that NH uses.
They should be fully documented in the user manual, if you don't have one it could be available on ManualLib.