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Old 06-10-2014, 11:38 PM   #1
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Is my Lippert 6 Point Level Up failing?

Over the weekend I had to reset my Lippert Hydraulic system which controls the slides and the Automatic Leveling system. Now when I try to use the Auto Leveling feature, the Passenger side Rear jacks don't extend fully to the ground. I can set these manually, but I am worried about a potential system failure and I don't want to get stuck next weekend. I called Lippert today and they recommended that I re-calibrate which I did twice yesterday. I re-calibrated again tonight and got the same result. I will call Lippert again tomorrow.

Anyone else have an experience like this?
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Old 06-10-2014, 11:59 PM   #2
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I have not seen that, but how do the jacks respond in manual mode? Do they fully extend and retract? I would manually cycle the Hydac valve (blue wire) several times.
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Old 06-11-2014, 12:04 AM   #3
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I have not seen that, but how do the jacks respond in manual mode? Do they fully extend and retract? I would manually cycle the Hydac valve (blue wire) several times.
Manual Mode works fine. What do you mean by cycle the Hydac valve?
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Old 06-11-2014, 08:40 AM   #4
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See this post for what I mean by cycling the Hydac valve. It is the solenoid valve that controls the fluid flow to each pair of jacks (front/left/right) and your slides. You should have four valves. That same thread has more pictures of the hydraulics. Be gentle with the valves since they are precision parts. You valves may be binding a little and full stroke cycling them a few times may loosen them up. It worked for when my slides started opening during and auto level.
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Old 06-11-2014, 11:55 AM   #5
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Thanks Narboza, this is very informative. I am headed out to storage to take another look tonight.
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Old 06-11-2014, 04:20 PM   #6
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Just got off the phone with Lippert again. They sent me a bunch of detailed documents most of which were on a Motorhome and don't exactly apply. She did tell me how to check the fluid level and recommended to check for foam in the fluid which would signify an air problem. The best advice I got was to check to make sure the valves were closed. I will check all that tonight. After learning how to manually operate the system today, I am more comfortable with going out this weekend even if the Auto Level does not work.
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Old 06-13-2014, 12:56 PM   #7
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No resolution yet, but I thought I would post an update. I checked the valves, nothing was open or loose. No sign of air in the system, but the fluid was a quart low (filled it this morning). Current behavior is that auto mode does not work at all. Rear jacks won't descend. In manual mode, all works normally except for the right side. Once jacks descend and hit the ground, the right button activates the two jacks in front as well as the right side. Lippert this morning said that it sounds like a valve problem. Triple checked the valve and it is still tight. Looks like a trip to the dealer is in the cards soon.

On a side note, during my testing, I tried to use my drill to activate the jacks and did not have any luck. Opened the "right side" valve (clockwise about 3 turns) and used the hex bit on my drill to clockwise to extend. Went for a couple minutes and no motion at all. Is there a trick to this that I am missing?
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Old 06-13-2014, 01:16 PM   #8
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It could be that a valve O-ring or a jack piston seal has failed and it is just allowing fluid to leak internally. Does manual operation let you retract or extend the landing gear? If a right side valve O-ring is leaking, it may affect how the other jacks work too.
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Old 06-13-2014, 02:59 PM   #9
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It could be that a valve O-ring or a jack piston seal has failed and it is just allowing fluid to leak internally. Does manual operation let you retract or extend the landing gear? If a right side valve O-ring is leaking, it may affect how the other jacks work too.
Front landing gear and left side works fine as does "rear" which controls all 4 rear jacks. I tried the manual cycling that you suggested, but I could not get movement anywhere that way.
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Old 06-13-2014, 04:34 PM   #10
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That sounds less like a valve leak and more like a jack piston head leak. See this Lippert data sheet about leaks.

Lippert LIP Sheet 0061 Hydraulic Cylinder Leak Locations.pdf
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