The hydraulic tank is right where all the pump noise is when you operate the jacks and slides. On our 2007 Suncruiser, it is just forward of the front room slide on the driver side. The jacks must be up and the slides in to check the fluid level. It is a bit awkward to get to the dipstick and fill hole, but can be done.
Open the front compartment door on the driver side just behind the front tire. There is an open space above the top of the compartment and the floor of the MH. Reach in and toward the front of the MH and you will find the tank, solenoids, and other HWH stuff. On the top of the tank is a hex shaped cap that is the vent cap and dipstick. It is not very large in diameter. Blow off the top of the tank and wipe it off before removing the dipstick/breather cap. The fluid level is correct when it just barely touches the bottom of the dipstick when fully installed. It is awkward to add fluid, and I use a small funnel and add fluid slowly and checking often.
Good luck-- Mick
