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11-05-2013, 03:54 AM
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#1
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Noisy Lippert level up system fix
Copied this from RV net
Lippert has finally offered a user fix for temperature related popping in their hydraulic four point and six point auto leveling systems used on many fifth wheel trailers. They determined the noise was caused by high stiction (static friction) in the hydraulic cylinders. Changing out a quart of hydraulic fluid for a quart of Torco RFF 15 ( 15 weight racing fork fluid) significantly reduces stiction and thereby greatly reduces the popping and jolting that many rv owners have felt. There is a recommended procedure to follow, and 10 wt fluid may also be used in cooler climates.
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11-05-2013, 05:44 AM
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#3
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Montana Master
Join Date: Feb 2005
Location: Osmond
Posts: 673
M.O.C. #3160
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Thanks all, for the info. we are in SOUTH TEXAS and we are having some hot days and some popping. Back in Nebraska the temp. change was slower no popping, but down here it is popping again.
THANKS AGAIN
__________________
LARRY & LAVONNE HUMMEL
2018 3811MS
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11-05-2013, 07:08 AM
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#4
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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I was reading the steps in the process and came to this one:
Obtain a fluid extraction device (siphon, turkey baster, etc.).
I have to admit, I burst out loud laughing. I have never heard a turkey baster referred to as 'fluid extraction device'. 
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11-05-2013, 10:16 AM
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#5
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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I did that mode some time ago as a neighbor at home races dirt bikes and uses that stuff. I have still heard a pop or two.
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11-18-2013, 08:07 AM
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#6
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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The Lippert information also lists CAT Hyraulic Fluid Additive as one of the fluids that can be used...and...that is the one that I will be using as soon as I get time to go to the Catipillar dealer in Ft Myers. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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11-18-2013, 11:42 AM
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#7
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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Mine seems to have quit popping on its own
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11-18-2013, 01:55 PM
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#8
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Montana Fan
Join Date: Dec 2005
Location: Grain valley
Posts: 356
M.O.C. #5098
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I added the Cat antistiction oil and it has completely stopped the popping.
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11-18-2013, 02:03 PM
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#9
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Montana Master
Join Date: May 2010
Location: Rock Island
Posts: 1,074
M.O.C. #10457
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Yes, the popping seems to have slowed down and possibly may have stopped. I have wondered if over time as the LevelUp is used and the ram seals becomes more seated/worn if the static friction will be relieved more gradually verses the sudden popping noise.
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11-18-2013, 03:06 PM
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#10
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Montana Master
Join Date: Feb 2007
Location: Winfield
Posts: 7,327
M.O.C. #6846
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Guess I will have to check at work to see if maintenance has the Caterpillar Hydraulic Fluid Additive. May have to have some on hand just in case. How much has to be swapped out with the hydraulic fluid, does any one know?
Bingo
__________________
Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.
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11-18-2013, 03:14 PM
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#11
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Montana Fan
Join Date: Sep 2012
Location: Redmond
Posts: 274
M.O.C. #12815
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Had the popping the first few times out.
After that all gone. Didn't put any extra fluid in.
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11-18-2013, 05:24 PM
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#12
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,700
M.O.C. #12947
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The suggested method is to remove a quart of fluid and replace it with a quart of one of the suggested fluids. And, if you still have noise, remove one more quart and add a second quart of the fluid. I chose to use the CAT fluid, just because there was a Caterpillar dealer not far from us when in Idaho. I didn't choke too much when told the price was $25 or so for a quart bottle of the stuff. Must have some precious metals in it. At least it solved the problem.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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Linear Mode
