Gulf Stream Owners RV Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-11-2007, 10:54 PM   #1
Journey
Junior Member
 
Join Date: Apr 2007
Location: Apopka, FL
Posts: 9
Default Rocking motion when leveling jacks are down

Hello's, greetings and introductions to all in viewing distance. Okay, we are new to all this. This is our first RV and we should have done it years ago, but that aside, I do have an annoying rocking motion when the leveling jacks are down. Yes, it could be a "user" error.

Our 2007 GS, was just in for a short punch list of warranty items and the dealer said there is nothing wrong with the jacks and "no", the rig should not rock when they are down. I have lowered them on concrete, blacktop and on double stacked 2x10's when on gravel or sandy surfaces. The rig rocks when anyone walks through it and we even feel the rocking motion with a light wind outside.

It's kinda like our days in boating when you learned to get your sea legs. It is annoying to have this motion when on solid ground. If it is a "user" error, what is the suggested sequence to set the jacks? I usually set the front jacks, then lower the rear jacks until at least one of them touches the ground. Using a carpenters level set on the floor, I adjust right rear or left rear to level, then adjust front to rear for level. I then check and adjust right rear and left rear for level again. The dealer says that the wheels should not lift off the ground, unless on a serious incline.

Specs on the RV: (6 weeks new)
2007 SunVoyager 38'8", new 3 zoned floor plan 8389, Diesel (Fred).
Cummins 300HP on a Freightliner chasis.
Jacks are Power Gear Hydralic with the standard dash panel. I really don't care for this panel but the dealer said it would be expensive to change it for one with lights that illuminate when level is acheived. Major rewiring envolved.

Going full time when the house sells ... OR ... if I win the Lotto. Let's hope the house sells SOON.

Glad to be here and a part of the GSOwners group.

PS to the moderator: Please reset, change, delete and reinstate my membership number. 666 is not one that I (or anyone would want). Thanks in advance.
Ron
__________________
Jumped ship to a Tiffin Phaeton 40QSH
Always a Gulfstream Member but own some
other brand. This is a great forum group.
Journey is offline   Reply With Quote
Old 05-11-2007, 11:18 PM   #2
GStream40
Site Team
 
Join Date: Nov 2005
Posts: 903
Default

If you are verifying that all 4 jacks are down touching and you are level you should not be "rocking".

There might be a slight movement, but shouldn't be rocking. This is confusing if all jacks are touching with weight on them.

Perhaps someone with a SunVoyager can jump in and give some insight on what they think might be going on.

Ron
GStream40 is offline   Reply With Quote
Old 05-12-2007, 09:16 AM   #3
Arthur Hayes
Senior Member
 
Join Date: Dec 2006
Location: St. Augustine
Posts: 164
Default

One thing you did not mention, but I am sure it is in your routine, is lowering the air bags. Coach will rock if air bags are inflated when the jacks are down.
__________________
Art Hayes
2007 Tour Master T40A
Mercedes Engine
Blue OX Tow Bar
Unified Break System
Arthur Hayes is offline   Reply With Quote
Old 05-12-2007, 11:20 AM   #4
Journey
Junior Member
 
Join Date: Apr 2007
Location: Apopka, FL
Posts: 9
Default

Good thought, Art. But the front engine deisels do not have air bags (not that I know of anyway). Someday, I'll grow up to a real deisel that pushes not pulls and has air suspension.
__________________
Jumped ship to a Tiffin Phaeton 40QSH
Always a Gulfstream Member but own some
other brand. This is a great forum group.
Journey is offline   Reply With Quote
Old 05-14-2007, 01:08 PM   #5
chamberlain
Member
 
Join Date: Jun 2006
Location: Tustin
Posts: 75
Default

Rocking will happen if the air bags are not deflated...It happened to me.

Another question. Just this weekend I had some hydraulic fluid come out of the fill/overflow cap of the pump when I let my jacks down. One jack had the rear tires off the ground by about 1" by the time I got the coach level. When leaving I couldn't fill the air bags before retracting the jacks as this one wheel was off the ground so I just retracted them all. Could the extra pressure/weight on the jack have cause the fluid to overflow some. It was a small amount but I'm just curious as to why this happened

Thx John
__________________
06 Crescendo w/full body paint, Toad=08 HHR w/Blu Ox
chamberlain is offline   Reply With Quote
Old 05-14-2007, 06:30 PM   #6
GStream40
Site Team
 
Join Date: Nov 2005
Posts: 903
Default

Quote:
Originally Posted by chamberlain
Rocking will happen if the air bags are not deflated...It happened to me.

Another question. Just this weekend I had some hydraulic fluid come out of the fill/overflow cap of the pump when I let my jacks down. One jack had the rear tires off the ground by about 1" by the time I got the coach level. When leaving I couldn't fill the air bags before retracting the jacks as this one wheel was off the ground so I just retracted them all. Could the extra pressure/weight on the jack have cause the fluid to overflow some. It was a small amount but I'm just curious as to why this happened

Thx John
John,
Journey does NOT have air bags on his front engine diesel. It has spring suspension.

The hydraulic fluid coming out of your tank vent could have been caused by by the amount of fluid rushing back into the tank when you raised the jacks. Possibly a bit of foam/air bubbles will cause this. Had it happen to our coach one time when I had the front jacks fully extented to level the coach. When I retracted them I noticed a little fluid leaked from the tank vent. It has never happened again.

Ron
GStream40 is offline   Reply With Quote
Old 05-15-2007, 08:52 AM   #7
RJ82much
Site Team
 
Join Date: May 2005
Posts: 567
Default

Ron (Journey),

I have good news/no news. Your membership ID is #973. You are listed at 666 in the "joined date" ascending list. Turn it around to descending & you have a different listing number. Show all members by location, email, number of posts will get you other list numbers. You are safely always known as #973. I didn't look to see who is the REAL #666 - don't want to start a trend! Ha Ha Ha

As for Rocking Motion, I have noticed the same on my Sun Voyager whenever I have the jacks down & extended quite a bit to get level, taking most of the ground contact off either a front or rear axle.

After seeing the jack equipment attachment during factory tour, I'd bet there is a bit of frame rail-web twist amplified by the length of jack extension, plus wobble of the jack piston to cylinder wall also.

I've solved the uncomfortable effect by placing blocks under the jack pads before leveling, to limit the extension. Also, by jamming boards under any tires that need to lose ground contact for level (overlift the wheel, insert board & lower)

Give it a try & let us know the results.
__________________
Bob

'05 Sun Voyager #8351
http://www.much2see.com/index.html
RJ82much is offline   Reply With Quote
Old 05-15-2007, 03:08 PM   #8
Journey
Junior Member
 
Join Date: Apr 2007
Location: Apopka, FL
Posts: 9
Default

Thanks Bob,
Both for the membership listing clarification and your suggestion of blocking the wheels for more stability. I had thought of doing that with 12" lengths of 4x6 PT posts placed under the front wheels. The lot where we keep the rig full time has about a 3" slope between front and back wheels. I already have pads for under the jacks. I'm sure the combination of the two will help.

That's quite a catchy and descriptive phrase you have there ...
Overlift, Insert & Lower :P
Not to be confused with the well known "lifts and separates".

I'm sure we all can now visualize your remedy for the rocking boat syndrome. Sorry, I couldn't resist ....
__________________
Jumped ship to a Tiffin Phaeton 40QSH
Always a Gulfstream Member but own some
other brand. This is a great forum group.
Journey is offline   Reply With Quote
Old 05-15-2007, 04:46 PM   #9
GStream40
Site Team
 
Join Date: Nov 2005
Posts: 903
Default

Overlift, Insert & Lower

I belive that is done in Hollywood according to Jay Leno.

Sorry, I couldn't resist either.

Ron
GStream40 is offline   Reply With Quote
Old 05-16-2007, 08:24 AM   #10
RJ82much
Site Team
 
Join Date: May 2005
Posts: 567
Default

Quote:
Originally Posted by GStream40
Overlift, Insert & Lower

You guys are cracking me up.... Each of your posts puts me in giggling fits... I'm afraid that I'll hurt myself the next time I level my coach.
__________________
Bob

'05 Sun Voyager #8351
http://www.much2see.com/index.html
RJ82much is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Leveling Jacks ADGUY Class C 0 05-29-2017 10:31 AM
leveling jacks 81camaro Buy / Sell / Trade 1 09-15-2014 07:09 PM
coach rocking even with leveling jacks down Chuck v Class A 2 05-03-2014 01:08 PM
Leveling Jacks Frosty Class C 5 10-08-2011 02:07 PM
Leveling Jacks Oldiron Class C 1 08-06-2010 08:14 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:58 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.