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07-16-2016, 11:48 AM
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#1
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Montana Master
Join Date: Oct 2013
Location: Ogden
Posts: 638
M.O.C. #13862
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Question: Hydraulic popping & adding jack oil
I did what Lippert suggests in adding the jack oil into the reservoir.
My question is: How many of you that did this had to a second quart as Lippert suggests, if the popping didn't quit?
I'm curious what my chances of success are with the one single quart.
Thanks!
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07-16-2016, 12:00 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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My popping stopped over time without putting anything in. Had a jack replaced and it started again and once again stopped with time. My guess is you'll have to let that quart cycle thru and the air cycle out.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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07-16-2016, 12:01 PM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,380
M.O.C. #4831
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I added 1 quart of the Cat Hydraulic fluid recommended by Lippert. It made a major improvement. I rarely have popping now. But I am thinking of adding another quart. The old "If one is good, then two are better" philosophy.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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07-16-2016, 04:19 PM
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#4
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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After adding per the lippert manual two years ago when we bought the rig, have had no noise or issues.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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07-16-2016, 04:34 PM
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#5
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Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,150
M.O.C. #1920
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As a Caterpillar retiree, we appreciate the business. I have not had the popping with our Level Up. I guess I should get a quart of Caterpillar fluid.
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Ron and Terrie Ames - MOC #1920/KF0NTA
2021Montana 3230CK Super Solar Legacy Package
2021 Ram 3500 Laramie Longhorn, BIM Charging
4x4, SRW, LB, Crew Cab, Pullrite 3900 Hitch
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07-16-2016, 04:39 PM
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#6
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Montana Master
Join Date: Mar 2014
Location: Sioux Falls
Posts: 505
M.O.C. #14162
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We used the fork oil and it basically resolved the problem once it ran through the system.
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Steve & Sheryl Engels
2018 Montana 3790RD
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07-16-2016, 05:18 PM
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#7
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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The lead installation instructor/certifier for Lippert 6 point level-up systems told me that the popping is simply air in the system. He also told me that any aftermarket installs that Lippert does includes the hydraulic fluid additive.
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2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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07-16-2016, 07:33 PM
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#8
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,706
M.O.C. #12947
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Mark N., Hope you actually put in fork oil, not jack oil as you stated, because jack oil will do nothing to fix the stiction issue in the hydraulic system, which is what causes the popping with the jacks, and no, it is not air in the hydraulics that causes this, or it would soon disappear with continued use as the air was worked out of the lines. I used the CAT fluid, and the popping stopped almost immediately after installing the quart of fluid.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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07-28-2016, 09:57 AM
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#9
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Seasoned Camper
Join Date: Jun 2013
Location: Quincy
Posts: 71
M.O.C. #13543
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I used 1 quart of fork oil and the popping decreased but did not stop. Finally got around a Cat dealer for the second quart and the popping ceased immediately after addition. If you use Cat oil in the first place you might not need the second.
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07-28-2016, 11:10 AM
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#10
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Montana Master
Join Date: Feb 2004
Location: Brandon
Posts: 3,944
M.O.C. #1034
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Used 1 qt. of CAT oil here and it sure solved our problem.
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Darwin & Maureen DeBackere
Minnedosa, Manitoba, Canada
2011/3500/Silverado/4x4/DRW/Duramax
2017/3721RL/Legacy Pkg./Pressure-Pro
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07-28-2016, 03:22 PM
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#11
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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Wonder if the CAT Oil being designed for Heavy Duty Hydraulic Systems is better than Motorcycle Fork Oil? Sure sounds like it.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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07-28-2016, 03:46 PM
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#12
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Around my area they use the Torco RFF 15wt fork oil just because it's readily available. It seemingly works as I have a couple of RV tech friends that haven't said any different. I imagine any of the recommendations work as long as you follow the instructions. There's more to it than just sucking out a quart and replacing it if you want quicker results. http://www.lci1.com/images/support/lipsheet/0295.pdf
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08-19-2019, 07:26 AM
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#13
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New Member
Join Date: May 2018
Location: Chesapeake Beach
Posts: 7
M.O.C. #21695
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Is there a drain for the reservoir? If not, what did you use to get the oil out and how did you manage to get 2 quarts?
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08-19-2019, 08:06 AM
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#14
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,427
M.O.C. #21044
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turkey baster
I used a turkey baster that i found at a garage sale for $1 (did not use DW's turkey baster!)...just slow and steady...suck it in and squeeze it out into an empty transmission fluid bottle. Now I use that bottle to soak on a rag to wipe off landing gear legs.
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MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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08-20-2019, 07:45 PM
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#15
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Montana Master
Join Date: Dec 2017
Location: Mountain Home
Posts: 841
M.O.C. #20949
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The key on what fluid to add is.... what does your reservoir currently have in it?
Some have ATF fluid and some cone with AW32 ....
Easiest way to tell is if fluid is honey colored you have AW32 in the reservoir.
The Lippert PDFs and are in desperate need of revision to reflect this....
Mixing AW32 with ATF is not good for all the internal seals.
Mine came from factory with AW32 fluid. That’s what I have serviced it with. I drain out as much as I can from reservoir every 3 years without inducing air into system and reservice with AW32.
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