Leaking HWH jack Where is the hydraulic reservoir for fluid.

We have a 2013 2910D.
The front passenger jack started leaking a lot of fluid.
We don’t know where the reservoir to fill it with fluid is located. Would appreciate any help showing where to look.
Looking online we read the fluid should be changed every couple years. We don’t believe it was ever changed.

Has anyone else experienced trouble with their HWH jacks?
Our son crawled under the motor home and said AP7164 was written on leaking jack.
Would love to hear how you troubleshooted and fixed your jack.

On the 2552 it is located in front of the drivers side rear wheels.

On my 2010 version of the 2900 (which hopefully is very similar to your 2910), the HWH hydraulic pump and reservoir are bolted to the inner side of the driver's side frame approximately even with the propane tank and about a foot in front of the rear axle.
There will a lot of hydraulic hoses and heavy gauge wires attached to it.  Your head will be next to the drive shaft when you find it.

I've included a pic of one that is very similar to mine. The left (forward) half should be in a black plastic protective box with a clear door face.  The right (back) half is the fluid reservoir. The large silver hex nut is the fill cap and dip stick. If I remember right... I think my fill cap is white and slightly larger diameter.  Sorry I don't have pics of my actual HWH, but it's not easy to get to, let alone take pics.   The next time my PC is at the mechanic and over the work pit, I want to take pics of areas like this.

I hope this helps.

Some advice... The reservoir holds more than a quart... So grab 2 and save yourself a trip.