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Old 05-25-2021, 08:15 PM   #1
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Brand: Thor Motor Coach
Model: Miramar
State: California
Posts: 77
THOR #22927
Lippert Leveling Jacks

Hi. I have a 2017 Thor Miramar. I want to replace the hydraulic fluid for the leveling jacks. What fluid do you recommend?

Thanks

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Old 05-25-2021, 08:55 PM   #2
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Model: ACE 27.1
State: Florida
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THOR #7035
What Lippert recommends:

https://support.lci1.com/documents/t...recommendation
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Old 05-25-2021, 09:06 PM   #3
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X2 on what LCI recommends.

Should be listed in your leveling system owners manual which is a handy read.
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Old 05-25-2021, 11:47 PM   #4
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THOR #6826
Itís probably Dexron automatic transmission fluid but you should check with Lippert. I used a siphon and a turkey blaster to empty the reservoir.
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Old 05-26-2021, 01:28 AM   #5
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THOR #21926
Quote:
Originally Posted by smithgarnat@aol.com View Post
Hi. I have a 2017 Thor Miramar. I want to replace the hydraulic fluid for the leveling jacks. What fluid do you recommend?

Thanks
I don't think hydraulic or transmission fluid is hygroscopic like brake fluid. If you camped once a week for the last 4 years your jacks would only see about 208 cycles and I doubt you even camped that much. I find it hard to believe the fluid would be bad especially when you consider the low operating temperature of the jacks unlike transmissions that are subject to high temperatures for long periods of time. Now if the fluid is contaminated that is another thing.

Bob
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Old 05-26-2021, 12:39 PM   #6
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Brand: Thor Motor Coach
Model: Miramar 35.3
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Good to replace the fluid every couple of years.

When the pump extends and retracts the jacks the fluid in the tank goes down and up. This causes air to move through the breather cap (the filler cap) and dirt, moisture, bugs what ever will get into and out of the tank. Over many cycles you may see some debris or moisture in or on the fluid.

Using a small hand pump and getting to the bottom of the tank so you can see it is great. If you start to see particles in the bottom that are attracted to a magnet you are in trouble, if just dirt then use a clean toilet brush (or large bottle brush) to scrub it down a bit and then something to wipe it out careful to not leave anything behind. No chemicals or other anything other than the recommended ATF in the tank.

Most of this is dependent on where the pump is mounted, if in a sealed compartment this is the best, however some of these are just mounted underneath everything open to all kinds of dirt. Last MH I had was like that, it was right behind the passenger front wheel and attracted all kinds of stuff had to mount a piece of a mud flap right in front of it to divert some debris. This turned into a every other year procedure for me, but yours will and may be different.

A little maintenance properly performed goes a long way.
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