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Thread: Hydraulic Lines
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03-12-2023, 08:19 PM #1
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03-12-2023, 08:21 PM #2
Definitely time to replace them. Local hydraulic shop should be able to make them up for you once you bring them the old ones.
Bill2019 GMC 3500 SRW Sierra Denali Duramax
2020 Reflection 315RLTS
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03-12-2023, 08:32 PM #3
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^^^^^^^^^Ayup.
Howard and Peggy
2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
His: 1999 Honda Interceptor
Hers: 2013 Spyder ST-S
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03-13-2023, 04:43 AM #4
Very easy to replace, I did a few on my 399, brought the old ones to a hydraulic shop and they made new ones for me. If I recall the system is self bleeding, so no need to prime the lines or anything. Hope someone can back me up on that one, it's been a few years since I did the replacement.
2023 Momentum 398M-R
2023 Ford F-450
SOLD - 2021 Reflection 311BHS
SOLD - 2017 Momentum 399TH
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03-13-2023, 06:27 AM #5
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03-13-2023, 07:33 AM #6
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Yes, there's nothing to do after replacing the lines except run the pump a few times. I had to replace a line last summer because the outside had crazed, and the fluid was actually leaking through the hose. The prices aren't gawdawful, but it definitely could get expensive if you have to replace them all. Those long run hoses will not be inexpensive. You might check with Grand Design, for warranty coverage. Probably won't happen, but sure can't hurt. Hoses should be good for many years.
Howard and Peggy
2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
His: 1999 Honda Interceptor
Hers: 2013 Spyder ST-S
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03-13-2023, 08:44 AM #7
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Decided to just replace the four currently running to the back four jacks since the underbelly is off. I wished Grand Design had replaced them when they had the underbelly off five months ago at the factory. I will replace the front two at a later date since they don't run through the underbelly, due to time and money constraints
I will send GD the receipts but doubt I will get much traction from GD. This coach is a Covid coach with numerous issues to include having the belly off six times, or is it seven, I have lost count. Five water leaks, a back ramp, electrical issues, refrigerator issue, suspension, the water heater is is acting up and black tank burping problems.2019 F450 CC
2021 Momentum 395MS-R
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03-13-2023, 12:27 PM #8
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It is the two lines for the slide outs that are bad not the levelers. Luckily these are easier to get to.
Question. If I retract the slide outs can I disconnect the hoses without pulling up the jacks?2019 F450 CC
2021 Momentum 395MS-R
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03-13-2023, 12:34 PM #9
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What you do with the slide hoses shouldn't impact the jacks. They're on a different "circuit" so to speak.
You probably need to ascertain whether the hose you're taking off is to retract or extend. You don't want to pull the hose that has pressure. Which I'm sure you've thought of.Howard and Peggy
2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
His: 1999 Honda Interceptor
Hers: 2013 Spyder ST-S
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03-13-2023, 12:35 PM #10
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Definitely thought about that., lol. Worked on fans as a kid
2019 F450 CC
2021 Momentum 395MS-R
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