S373D 3 point relief valve location?

[Ehanson]

Any one checked, shimmed the relief vale of the 3 point hydraulic pressure, and where is it located?
Thank you,

 

[oliver28472]

Looking at my manual, it appears to be inside the case as part of the control valve. I've never had mine off or had to adjust it. Book says not to fool with it unless a facility for measuring oil pressure is available.

 

[Ehanson]

Looking at my manual, it appears to be inside the case as part of the control valve. I've never had mine off or had to adjust it. Book says not to fool with it unless a facility for measuring oil pressure is available.

OK, What I should do is take a pressure reading when the lift is in relief and see what is there.
Does the manual state a pressure the system has.