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Old 12-09-2013, 08:33 PM   #15
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Another thought. Since the hyd level was so low, perhaps air was introduced into the hyd system and is causing the bounce/movement. Can't speak of Power Gear, but HWH hyd system says to retract the jacks and hold the button for about 20 seconds. This supposedly helps purge air from the system. That''s on the L

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Old 12-16-2013, 10:19 PM   #16
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Our 05 Diplomat has only three jacks, one in the front and two in the rear. I think it was very cheap of Monaco to offer this system as their base leveling system. Anyhow, yes we feel movement coming in and out of the coach, now in SO CAL with the winds blowing and our slides out we also feel quit a bit movement when it gusts. We are leveled on very solid ground, btw my DW is a very heavy footed walker and I feel he walking around. I guess the bottom line is it isn't a home.

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Old 12-17-2013, 07:08 PM   #17
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Since you were low on fluid, I would fully extend and fully retract all jacks several times (how Power Gear says to purge the air), and I would recheck the fluid level after each retract cycle. If it's not full before extending, you could add more air to the system.

In my opinion, you will never fully eliminate the wobble. The 4 jack power gear system is the functional equivalent of the 3 jack system as the front two jacks are plumbed together to prevent frame twisting by the jack system. Therefore, when you enter the coach placing weight on the passenger front, that corresponding jack will retract slightly and the jack on the driver side will extend slightly.

I think it also varies by jack manufacturer, motorhome manufacturer, and how the jacks are mounted to the frame. My first motorhome with HWH jacks did not have as much wobble as the current one.

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St. Augustine, Fl.
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Old 12-20-2013, 07:32 AM   #18
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If you're on a concrete pad, with jacks extended manually to the point the coach is resting on them solidly, and you feel motion, it's the coach itself flexing. You can add more jacks (like maybe under the step?) or you can ignore it. You've got the best you're going to get.
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Old 10-12-2014, 06:40 AM   #19
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Assume you have emptied suspension air bags?
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Old 10-12-2014, 10:33 AM   #20
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I will assume you have hydraulic jacks (mostly because this is less likely to happen with electric jacks)

Two thoughts.. First I strongly suspect I have air in the lines on mine.. When I replace a defective jack (Right now I use other hand jacks on that corner) I will add a device to eliminate air.

Second, hoses, unlike pipes, tend to expand a bit under pressure, and I have like 35 feet of hose on each of my rear jacks So there is some give.

Solution if parked LONG TERM.

Get a couple of heavy duty Jack Stands. Jack up more than needed and then lower onto stand, NO GIVE, though they may sink into the ground

(My jack stand sits atop a 2x12)

Home is where I park it!
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