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Old 12-29-2016, 05:34 PM   #1
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Jack Stands

I have an 2016 Mb. We are currently staying in El Mirage Arizona. My jack stands are constantly making noises and causing the trailer to shake. Does anyone have a solution to this issue? I spoke to another Redwood owner who said he had the same thing going on and his dealer added hydraulic treatment to his fluid. Does anyone know the name of this additive?

Lew Bacchieri
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Old 12-29-2016, 05:40 PM   #2
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I copied this from the technical library on the other forum:

If you experience a popping noise in the Lippert (LCI) Leveling system, Lippert has approved replacing a quart of the existing oil with a quart of anti-stiction fluid. They approved the following fluids:
Caterpillar Hydraulic Oil Additive 1U-9891 (Note many owners indicate this is the most effective option)
Torco RFF Grade 15
Maxima Fork Oil Grade 15

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Old 12-29-2016, 05:57 PM   #3
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Here is a link to a technical page at Lippert.

Also your hydraulic leveling jack legs are more stable when they are not fully extended. Suggest that you use large pads or wooden blocks under the feet so they don't extend as much.

We purchased the Torco RFF at a motorcycle shop in town. The RFF is Racing Fork Fluid. Some have said that the Caterpillar works better, I am not sure. The Torco pretty much eliminated our groaning and popping jack legs.

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Old 12-29-2016, 07:37 PM   #4
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The service center added he Maxima to mine with good results. The Cat oil is very expensive($25+ per quart) is most likely the reason the service uses the Maxima. Also if you have big temperature differences between night/day will cause some popping, but as stated the less they are extended the better, more stable & less popping.
Danny & Linda
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Old 12-30-2016, 01:04 AM   #5
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We use a similar additive in our Hydraulic Home Elevators as the Elevator Jacks will "Pop" sometimes from the same type of "Stiction"

I added a quart of the Elevator additive to my hydraulic reservoir and no more popping noise.

And yes the additive is expensive
Robert & Sheryl
2014 Redwood 38FL
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Old 12-30-2016, 03:57 PM   #6
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The Cat additive worked for us.
2015 Ram 3500 SLT Mega Cab DRW, SS Nerf Bars, Andersen Ultimate Hitch, ATTA Freedom Fill System
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