Main pump pressure check 3130

Hello all, I am trying to check and adjust if necessary the standby pressure on the main pump on my 1979 3130. I have the I&T manual and it indicates that there is a plug on the right side of pump that you remove and install a guage. I am unsure which port exactly to try this on. can someone either upload a picture or a schematic off of JD parts online that would depict exactly what port will give the pressure reading? this tractor has the electric de-stroking solenoid and one line goes to the top left port and the other goes in on the right side.
any help would be much appreciated!
thanks,
Devin
 
I am not sure how to identify what pump I have, if I take a pic or two would you be able to identify which it is?
 
Ok, thank you for your help. Also, some background info, when I put the gauge on the rear remotes, it shows 2250 psi. however, the pressure is bleeding off at about 100 psi. in 30 seconds and seems to stabilize at 1900 psi. At this point I am thinking I need to have the valves re-built. I do know they are the poppet style. I believe I recall seeing a post from someone on here that re-builds these. Would you tend to agree that the poppet valves need rebuilt based on the pressure bleeding off or is my "test methods" not correct?
thanks for your help.
 

Whether you need scv rebuilt would be determined by if hyd cylinder rod when cyl is attached to this scv will stay where you stop it. If rod moves after control handle is released then scv &/or cylinder needs repaired. If cyl rod stays where you want it then your scv doesn't need rebuilt. Normally leaking poppet valves drop lower than 1900 psi.
 
Here are the pics of the main pump. I hope you can tell which pump I have by these.
thank you again for the help
a269012.jpg

a269013.jpg
 
that is an electric de-stroking solenoid.... I think. I was told it makes it easier to start. wires off of the starter solenoid so it only activated when the starter is engaged.
 
Thanks for your help on answering the questions I have from time to time. also, if I was to hook up a gauge to adjust pressure would I "plug-in" to the ORB port on the right side, just below the rubber line of the de-stroker (first pic)?
 

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