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Old 10-28-2020, 06:36 PM   #1
gordo
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Jacks dropping

Well,
After this last trip, I see now my 2 left side rear jacks seem to "droop" after raising them .
This happens in a matter of minutes. No sign of any leaks at the jacks, and only these 2.
Hydraulic tank is full. Any ideas? They only drop about 6 inches, but that is enough to make for a really bad day...

Any advise would be welcome.

2018 3120
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Old 10-28-2020, 06:57 PM   #2
DQDick
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I'd call Lippert customer service, they are usually great to work with. Personally, I think you have a seal/check valve that's leaking and releasing the pressure internally, but they'll know for sure.
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Old 10-28-2020, 07:32 PM   #3
gordo
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thanks.. I have seen some threads on this issue, but unable to find now.
I'll see if I can find contact
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Old 10-29-2020, 06:05 AM   #4
RMcNeal
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Gordo, have you checked the manifold for any leaks? When I got my unit, the manifold in the front battery compartment was leaking very slightly, but it was enough to cause what you describe. Only a few drops on the floor of the compartment.
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Old 10-29-2020, 06:12 AM   #5
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I will check that today...Thank you....
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Old 10-29-2020, 06:48 AM   #6
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Originally Posted by gordo View Post
I will check that today...Thank you....
On the bottom of the manifold there are what looks like outlet ports. That's not what they are, only what they look like and I don't know another way to describe them.
Anyway, run your finger along the bottom of these to see if any have hydraulic fluid seeping out. Mine had 8 ports, I guess 6 for the level up jacks and 2 for the hydraulic slides.
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Old 10-29-2020, 09:33 AM   #7
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Look up the "stiction" bulletin on Lippert's site.
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Old 10-29-2020, 11:08 AM   #8
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Anti-stiction fluid or Fork Oil is more for the popping noise you'll get typically in the cold of winter. I added a quart of Fork Oil a couple months ago in anticipation of this winter. There are several approved options to use, one of which is https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 10-29-2020, 02:23 PM   #9
ForBruce
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Try bleeding the system for air in the line

or add viagra to the fluid
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Old 10-29-2020, 10:33 PM   #10
gordo
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I cant thank you all enough for all the good advise. got home late, so i have to try stuff tomorrow..
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Old 10-29-2020, 10:34 PM   #11
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Originally Posted by ForBruce View Post
Try bleeding the system for air in the line

or add viagra to the fluid
I would try that, but my wife has it hidden...
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Old 11-04-2020, 07:43 PM   #12
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I would try that, but my wife has it hidden...
Maybe she hid it in the hydraulic reservoir. Didn't you state the were popping out?
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Old 11-04-2020, 07:47 PM   #13
gordo
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Maybe she hid it in the hydraulic reservoir. Didn't you state the were popping out?
NO, I said they were dropping, kinda like her,,,,,never mind,,,I'll check the reservoir...
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Old 11-05-2020, 07:36 AM   #14
ChuckS
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The mid/rear hyd levelers are operated in tandem.. your issue can be caused by...
... air in system... bleed system by extending and retracting levelers 3 to 5 times to purge air
... manual over ride screw on solenoid valve for that side is not right allowing hyd pressure to bleed off.
Check with 1/8 inch Allen wrench and insure it’s closed
.. one of the two levelers ..mid/rear on that side is bypassing internally.. easy to test and verify..

Stiction is not what’s causing your issue.. you are loos8ng hyd pressure that holds jacks retracted

https://lci-support-doc.s3.amazonaws...cd_0001910.pdf
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Old 11-05-2020, 07:01 PM   #15
gordo
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Did the cycle deal, checked all the manifold fittings, cycled 10 more times....and it looks like they are holding for now.
Again, thanks for ALL the help from everyone...
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Old 11-05-2020, 07:04 PM   #16
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Ok, I did want to ask, in case they droop again, where is the soleniod you speak of? Is it on the jack near the top?
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Old 11-06-2020, 07:48 AM   #17
ChuckS
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Glad your levelers are holding in the retracted position so far... the six point hyd level system will have 3 separate solenoids ...
.. front LG will have one and it will be either on LT or Rt front only
.. the mid/rear levelers each have one solenoid mounted on a manifold usually along with a solenoid for hyd slide outs

Iíd locate these and carry necessary Allen wrench along with cordless drill and 1/4 in Allen stock to be able to manually override your hyd pump system should the motor fail...

Pic is what my solenoids look like...
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Old 11-07-2020, 06:01 AM   #18
gordo
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Ok, I saw those.

Those are easy to get to. I will check this weekend

THANKS
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