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12-15-2021, 06:21 AM
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#1
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Established Member
Join Date: Oct 2021
Location: Southern Pines
Posts: 17
M.O.C. #29946
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Main slides ram corroded
2021 3231CK anyone have corrosion on slide rams in less than one year?
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12-15-2021, 07:24 AM
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#2
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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Never and we are Florida snowbirds
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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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12-15-2021, 07:49 AM
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#3
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,669
M.O.C. #9969
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All I can say is WOW, never seen a hydraulic ram look like that, and I grew up on a farm with second or third had equipment and never saw a ram like that.
Something must have gone wrong in the manufacturing process.
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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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12-15-2021, 08:34 AM
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#4
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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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My two slide rams look just like that and have caused no issues at all in almost ten years. Mine were caused by weather in southwest Florida where we are extremely close to the peace river and weather patterns here give us periods of ocean smells as well as lots of mold and mildew.
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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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12-15-2021, 10:36 AM
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#5
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 575
M.O.C. #21903
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My Dewald manual says:
If rooms are out for extended periods, it is recommended to spray exposed cylinder rods with a silicone lubricant every 5 to 7 days for protection.
If your vehicle is located in a salty environment (within 60 miles of coastal areas), it is recommended to spray the cylinder rods every 2 to 3 days with a silicone lubricant.
Retracting the ram with ram, you can damage the rubber seal, thus compromising hydraulic action. I would try to remove with steel wool or other abrasive to smooth and polish the rusted areas until the entire ram is smooth and clean.
I just had to have my main slide ram rebuilt because it was leaking internally. Cost me $155 for the rebuild and gallon of hydraulic fluid. Took me a total of about 5 hours to remove cloroplast, remove cylinder, re-install and bleed, replace and seal cloroplast, and make final adjustments for slide open and close limits. Probably would have been close to $1,000 if I had to pay someone else to do.
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'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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12-17-2021, 07:37 AM
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#6
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Montana Master
Join Date: Dec 2017
Location: Mountain Home
Posts: 863
M.O.C. #20949
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Since this is a new 2021 unit I would be insisting on a replacement cylinder for that slide out..
My 2014 doesn't have that rust and such... You an try some steel wool and very lightly clean it but that's going to return again.. the surface of that piston rod will continue to give you issues...
I would clean it and use until the cylinder actually starts to leak.. which it may or may never..
I don't believe the hydraulic slide out cylinders can be rebuilt now because the ends are welded on... mine are welded on and are the older steel ones and the new Lippert cylinders are also welded
When the time comes that you start to develop a leak then order a replacement cylinder and replace it
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12-19-2021, 01:21 PM
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#7
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Established Member
Join Date: Jul 2018
Location: Kingsville
Posts: 24
M.O.C. #22133
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I had one like that and it destroyed the cylinder seals. Got a nes one on Amazon cheap. I’ve replaced all three.
https://smile.amazon.com/gp/aw/d/B07...b_b_asin_title
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2000 Montana 3280RL
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12-19-2021, 01:26 PM
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#8
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Montana Master
Join Date: Aug 2020
Location: Keller
Posts: 525
M.O.C. #26851
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Quote:
Originally Posted by Helpful Dad
2021 3231CK anyone have corrosion on slide rams in less than one year?
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You can spray them with Fluid Film, which will penetrate and stop the rust and corrosion. Spray it well and let it sit awhile, then wipe off excess with a clean rag. Stuff works great on rust and corrosion. Anything that has rust can be sprayed with this stuff and will stop the rust on most anything. After you have sprayed it and wiped it down you can take some copper wool (steel wool fibers that might remain will rust) and remove rust and corrosion residue. Spray again when done, wipe off excess and you will be good to go for some time. This stuff is non toxic and made from lanolin. I use it on my boat trailer, an RV at least once a year, boat trailer twice a year. Find it at Home Depot, Low’s, Amazon, and most hardware stores.
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12-23-2021, 09:54 AM
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#9
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Montana Fan
Join Date: Jan 2019
Location: TROY
Posts: 134
M.O.C. #23248
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My dinette slide hydraulic ram had to be replaced within the first year. It was leaking. Fortunately for me, I noticed the leak 3 weeks before the warrantee period ran out.
There was no rust. It should not have any rust. I'd be concerned the rust patches would degrade the seal over time.
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2019 20th Anniversary Edition 3120RL
2019 3500 Silverado HC, SWR, Duramax
B&W 20K for GM OEM Puck
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