On a 2003 DP Mountain Aire 40'. We have the above system and it works fine as the selling dealer replaced the main pump unit for our delivery.
I have two questions. First is that on retraction one or two of the jacks cylinders are a bit slow for the last inch or so. I'm in FL and the temps are in the 70's so that isn't the problem. My thought is to use a solvent to clean the bottom couple of inches of the pistons then with a clean rag soaked in ATF or an appropriate oil wipe the lower sections of the pistons.
Second is that the coach levels just fine but when it is done the door on the shower and the toilet room do not stay open they both swing slowly toward forward. Not a real problem but I have experimented a bit and if I manually adjust the front up about an inch the doors stay as they should. So the question is, "Does anyone here have any experience in resetting the level points with in the system?" I have a have a two way level gauge and I can tell you that it reads a bit different on different surfaces in the coach. Not much but some. The bubbles are in between the lines but not exactly in the middle so it is really minor but hey it is nice to have something just really picky to fix than something really bad that needs fixing.
I was told when the dealer installed the new pump that the coach had to go over to one bay that they use to set the leveling so my guess is there is a way to readjust it.
Thanks for the help in advance.
PS. I have gone to the HWH site and they have a very good Q&A section. http://www.hwhcorp.com/ml20673aafaq.html
There is a chart on question 93 as to the times that are allowed for retraction at different external temps. 4-5 minutes in 60* and above are not unusual. The recommend WD40 as a wipe solvent. Also the recommend to change the springs to the tapered style if not already done. Si we will have to get under there to see what we have as far as springs go.
They also have a manual on setting the leveling. http://www.hwh.com/ml47508.pdf
PSII. Check out question #111. http://www.hwh.com/ml40256.pdf
So you will have no doubt as to what system you have. Both by year and by wording on the control panel when the years overlap. I got to say these folks have the stuff together for sure.
I would still like to hear from anyone that has done either of the two repairs themselves.