[bestgenman]

In December of 2020, the coach went into the shop for a winter’s rest and repairs.  As the slide went in, fluid started running down the valance dripping on the dining table.  Months later After several other repairs and additions, it was time to look into the leak.  I was not looking forward to working on the hydraulics.  However, I was lucky as @land yachts was here ( he works for food lodging and beer).  You can’t get the valance down by yourself so his help was quite welcome.

The slide has to come in a little to get the valance down.  The light rope gets moved and a quarter round piece covering the wall to ceiling junction.  This gives access to the locking ram. The next step is very important.   Deflate the seals and open a few hydraulic solenoids manually to relieve pressure.  Turn off the air to the seal solenoids and unplug.  Now you are ready to remove hydraulic lines.  We took the ram to a vice and found the nut on top (used to cover the bore for the ram) had a blown o-ring.  Easy fix, new o-ring and job done!  Here is a picture of the locking ram still installed.
[attachment=8439]

The rest is reverse of the removal process.  Operated the slide several times to purge air, no need to bleed lines besides, it is very dangerous.  This system works at 3500psi.

My thanks to Mike Ginn, without him this would have been much too difficult.