What is this coupler used for? - JD 3038E

[Fidler4]

New tractor owner here. I have a 3038e that I bought new last year and am wondering that the coupler in the photo is used for. I could not find any reference in it in the manual. The coupler is located underneath on the right rear side of the tractor.

Thanks

 

[Fidler4]

Another view of the coupler (not my tractor in this photo)

 

[Tinhack]

It looks like it's Tee'd off a valve--Perhaps power beyond. It may be for auxiliary/remotes or simply a test port. Without additional parts, I would guess a test port.

 

[beenthere]

What SCV controls do you have? A pic of the controls might help.

 

[ovrszd]

What does the steel line service that the coupler is in?

 

[Redlands Okie]

What did the dealership say if was for?

 

[beenthere]

Connect a pressure gauge to it and see what SCV controls it and what pressure you get.

 

[Spanner]

The Parts List says the black oil pipe is "Oil Line - Implement Pump to RCV Manifold"

That 'RCV' is the Rockshaft Control Valve that the flange fitting screws into the bottom of.

The coupler looks to be a standard QC-type so I doubt it's a Test Port.

There is shown a "Cap" which fits over it with a Service Reminder sticker.

I'd think the 'Cap is a Dust Cap and you should get one to keep the QC clean.

Part Number LVU35060 (Less than US$5.00)

The sticker is Part Number LVU35065 (Service Label. RH) and is more expensive than the Dust Cap. (Less than US$10)

Do let us know what your dealer advises the port is for, thanks.

 

[jd110]

That is intended for diagnostic testing only. You can measure system relief pressure there. There is no function of it mentioned in owners manual.

 

[RickB]

That is intended for diagnostic testing only. You can measure system relief pressure there. There is no function of it mentioned in owners manual.

Based on the info in post #8 I would agree.