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Topic: Manual Leveling Levers (Read 715 times) previous topic - next topic

Manual Leveling Levers

I finally got a set of safety stands/spacers made up, 12" sections of 2" thick wall box.  I tried fitting them in place, but I noticed when I pushed all three leveling levers to the rear the center lever (front suspension) went quite a bit further than the outer two for the rear, maybe 2".  When I tried fitting the stands the fronts went in easily, but the rear was not nearly high enough,  probably 3" too low.  The PO said that the right rear height valve had been worked on by a roadside tech after failing on the road.  I am wondering if the rear adjustment is way off.  Should all three leveling levers have the same range of motion?  I was able to find adjusting instructions in the manual for the valves, but that made no mention of the levers and cables.  Is there something in the archive with more information?
Mike & Lilli
1991 GV U280 36' SBI, 3208 Cat, Build #3825
4320 Watts Solar
Kansas City, MO

Re: Manual Leveling Levers

Reply #1 –
Start by checking/adjusting ride height when on flat ground, air up.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Manual Leveling Levers

Reply #2 –
Original installation allowed all airbags to fully extend the same amount
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Manual Leveling Levers

Reply #3 –
My 92' has the same issue. In front of rear wheels 12" clearance. In back of rear wheels slightly over 7". Just checked out Kent Speer's coach (93') and his is the same.

Ride height was set by FOT serveral years ago so think this is correct gap.

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Manual Leveling Levers

Reply #4 –
Mine is the same = Higher in the front lower in the rear. However I can "Override" the rear by holding the "up" arrow and allowing more air pressure to build up, It seams that the rear needs more air pressure to allow the rear to lift to 12"... ^.^d
The selected media item is not currently available.
Gerry & Brenda
CHARLOTTE HARBOR, FL
1994 Grand Villa - # 4466
U300 Unihome - 6V92 Detroit
4 speed Allison - Jake Brake

Re: Manual Leveling Levers

Reply #5 –
That's because the rear is heavier, needs a longer time to raise. It's what I think.
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: Manual Leveling Levers

Reply #6 –
Quote from: Gerry Vicha –
Mine is the same = Higher in the front lower in the rear. However I can "Override" the rear by holding the "up" arrow and allowing more air pressure to build up, It seams that the rear needs more air pressure to allow the rear to lift to 12"... ^.^d
Maybe some confusion here. I'm talking rear wheels only. The gap with air bags all the way up in front of the rear wheels is 11" to 12" where as the gap behind the rear wheels with air bags all the way up is slightly over 6" to 7". You can see the air bags are all the way up in the pics I attached.

I'm going to be doing my rear HWH 6-pack soon and need to support all 4 corners of the rear as all air will be released from the rear air bags.

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Manual Leveling Levers

Reply #7 –
Mike lift up your dash look to the right just in front of the glove box. See if there is a alignment and air ride height note attached to the dash. Mine says 8 1/4 ride height that is the that is what you want the air bags to be set st with levers in the neutral/ detent position the rest is pretty much what you get after that is set. My levers do about the same on my 91.
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Manual Leveling Levers

Reply #8 –
Problem solved, cause was weird.  Apparently at some point in the past, something was trapped between the driver's seat and the left rear height adjusting lever.  The driver's seat was wound forward, and the bracket for the left adjuster bent down into the floor.  This rotated the left rear valve as if the lever was shoved forward, dropping the left rear, even with the levers centered in travel mode.  Then at some point the right rear valve failed.  The tech that replaced it simply adjusted the right side to be level with the left.  Now the rear was sitting low on both sides.  When I tried to lift it to put in the stands, it wouldn't lift high enough.  When I checked the bag height in travel mode today, the front was about an inch low, but the rear was 4 inches low!  I disconnected all three valve to axle links, straightened the bent bracket, brought the coach up to the correct height, and readjusted the links.  Now it is about 8 1/4" all the way around, as per the dash label.  Wow it sits tall now!  Pulled the levers back raise the coach, and all 8 stands slid into place.  While I was underneath I discovered the front valve is leaking, just another thing to replace.
Mike & Lilli
1991 GV U280 36' SBI, 3208 Cat, Build #3825
4320 Watts Solar
Kansas City, MO

Re: Manual Leveling Levers

Reply #9 –
In a steady crosswind the leveling valves can be moved from their middle position and can offset most if not all of the steering wheel correction.  Raise the downwind side a little.  You will notice you need less countersteer.

Thought about installing that system on my 97 but the lower profile,  heavier, longer wheelbase has much reduced countersteer already
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Manual Leveling Levers

Reply #10 –
But it's all a simple fix No 6 packs,etc No trips to HWH  simple simon repair!! ^.^d
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit
 

Re: Manual Leveling Levers

Reply #11 –
Simple is simply wonderful. :)
Mike & Lilli
1991 GV U280 36' SBI, 3208 Cat, Build #3825
4320 Watts Solar
Kansas City, MO