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Old 09-17-2021, 08:46 AM   #1
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Jacks leak down

I just did my 2nd trip in my 2000 Limited Alpine she is great, we love it.
I just cannot keep my front jacks from leaking down.
Is there one place to check the fluid for all jacks or does each jack have its own reservoir?
Also around Vancouver Washington is there a good certified HWH shop may need to just have it all looked at
Rick Maddox
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Old 09-17-2021, 09:26 AM   #2
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Quote:
Originally Posted by rlmlimited View Post
I just did my 2nd trip in my 2000 Limited Alpine she is great, we love it.
I just cannot keep my front jacks from leaking down.
Is there one place to check the fluid for all jacks or does each jack have its own reservoir?
Also around Vancouver Washington is there a good certified HWH shop may need to just have it all looked at
Rick Maddox
rlmlimited@comcast.net
509-939-0740
The fluid reservoir for the jacks and the slides is in a small compartment just behind the passenger side front tire. A small square door opens to reveal the HWH system and the reservoir which is just behind the control board.


If you do not have any visible leaks in the hoses or connections to that jack, the most likely suspect is the solenoid valve that controls that front jack. A bad seal may be allowing fluid to seep back into the reservoir. Each valve should also have a manual valve that can be turned to open the valve and allow fluid to return back to the reservoir. That valve may be slightly open.

The above is for a 2004 Alpine HWH system, but I think yours will be very similar.
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Old 09-17-2021, 10:05 AM   #3
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"Front jacks leaking down"....are you saying they bleed off (up) when deployed, or bleed down while traveling?
One way to avoid the dreaded "Jack down" light while traveling is to make sure you let the HWH system go thru two complete stow cycles before leaving camp. Also it's recommended to wipe the Jack cylinder rods clean and lube them with WD40 on a regular basis. Since we started doing this we have avoided the Jack down alarm while driving.
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Old 09-17-2021, 09:57 PM   #4
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I parked and leveled out. fron jacks lifted front of coach but they go down with in a few hours and I have to lift front end again. They will not keep the coach up for a night.
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Old 09-17-2021, 09:58 PM   #5
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Thank you I will look. I dont see any fluid laying around. It just will not keep my front end up if I have to lift it to be level
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Old 09-18-2021, 08:45 AM   #6
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Thank you I will look. I dont see any fluid laying around. It just will not keep my front end up if I have to lift it to be level
After you re-level will she stay up or do you have to do this every day?
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Old 09-18-2021, 10:46 AM   #7
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Try and contact AZpete on this forum, he works for HWH and can advise you on what may be the issue, through the eyes of an expert. It will help to have your HWH system model number as well.
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Old 09-18-2021, 10:59 AM   #8
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Agree with ljwt330. Check to make sure all the solenoid valves are seated "closed". Those are located on the HWH pump manifold, and they are the only holding valves for the cylinders.
Yes, contact AZPete if that's not the issue. I believe your 2000 has the model 610 system...well at least ours does.
Good Luck.
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Old 09-21-2021, 03:20 PM   #9
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Jacks Leaking down

I just went camping with a Alpine friend. He has a 2000MDSS. I worked on his system a little and spraying them with WD40, this helps allot.
Check you reservoir with the slide in and jacks up. There is a cap you unscrew on top of the reservoir to check the fluid level. Should be between the 2 marks.
The solenoid valves mentioned earlier could be the problem. The solenoid valves look like small beer cans with a valve in the back of them. Make sure they are screwed in clockwise. (Only hand tight). The rear outer solenoids are for the rear jacks, the rear inner solenoids are for the front jacks. The front solenoids are for your slides. Warning!!! make sure you are not under the coach when troubleshooting jacks.
Good luck
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