Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Tires, Wheels, Brakes, Steering and Suspensions

Tires, Wheels, Brakes, Steering and Suspensions Discussion of preventative/corrective maintenance and other technical issues regarding your coach's Tires, Wheels, Brakes, Steering and Suspensions and related components.

Site Search:
Reply
 
Thread Tools
  #1  
Old 08-29-2009
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,942
Default dual height leveling system

In a previous thread I talked about the ability to raise the coach up higher while setting the leveling jacks to enable putting larger pads under them for support on soft ground. Also there are times when the jacks hit the ground before getting fully rotated.

I came up with a simple and cost effective mount that will allow two heights, one for travel and one for setting up in a campground. It is only a prototype using available hardware, but I think it will solve my problem.

The original mount is a rectangular plate attached to a crossmember. The valve mounts on the plate. There is very little force generated by the valve on the mount, so the mount doesn't have to be overbuilt. I substituted a 6" hinge as the mount wiht a verticle tab welded onto it to mount the valve. I added a pneumatic cylinder which when extended will rotate the mount and lower the valve. Lowering the valve will result in the valve arm rotating above the center point, fooling it into believeing the coach is too low. The valve will allow air to enter the suspension until it again reaches the center position.

I planned to allow the coach to rise 2" for starters, but it cahn be adjusted by repositioning the pneumatic cylinder higher or lower.

Here is a picture. Total cost around $16. I will need to purchase a valve and airline to complete the installation, but that should not be too expensive. Well, I will need flexable hoses to connect the leveling valve to the copper air lines to allow movement, but hopefully that will do it.
Attached Files
File Type: pdf Prototype leveling modification.pdf (611.5 KB, 317 views)
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey

Last edited by gcyeaw; 08-29-2009 at 06:33 PM.
Reply With Quote
  #2  
Old 08-29-2009
Randy Dupree's Avatar
Randy Dupree Randy Dupree is online now
Forum owner
 
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 36,939
Default

interesting!
keep us informed!
and be very carefull under that bus!
__________________
DO NOT SEND PM
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
www.buybyebluebird.com

randy@randydupree.com
Reply With Quote
  #3  
Old 08-29-2009
warbucks13477's Avatar
warbucks13477 warbucks13477 is offline
Senior
 
Join Date: Jun 2008
Location: Vernon Center
Posts: 1,302
Default

Why not make it even simpler and put a T in the output of each levelling valve and then run 1/4" plastic line to the front of the coach along with a pressure line from your tank and install small valves for each leveller so you can raise each one to any height you want without effecting the height control valve. In other words a manual height system.
__________________
Tom Warner
Vernon Center,NY
1985 PT40 SOLD
6V92
Reply With Quote
  #4  
Old 08-30-2009
davidmbrady
Guest
 
Posts: n/a
Default

Tom,

That was kinda my suggestion too; while Gardner's solution is novel, I have an aversion to moving parts, and Gardner still has the problem of electric or air piloting of his cylinder:

http://www.wanderlodgeownersgroup.co...8056#post28056
Reply With Quote
  #5  
Old 08-30-2009
Crit Bliss's Avatar
Crit Bliss Crit Bliss is offline
Senior Member
 
Join Date: Jan 2008
Location: Cape Cod
Posts: 4,259
Default

I think Gardner is considering that the valve and rod do not have unlimited movement. Is there 2 extra inches of movement available in the stock configuration? In other words, can you inflate the bag to max height without damaging the ride height valve or the rod as they are currently set up? Gardner, your idea would require some type of fail safe to return it to the stock ride height like a heavy spring should a control failure occur.
__________________
Crit Bliss
'80FC33
250T
Cape Cod,ma
Reply With Quote
  #6  
Old 08-30-2009
Randy Dupree's Avatar
Randy Dupree Randy Dupree is online now
Forum owner
 
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 36,939
Default

Tom,if another air line was added like Tom suggests,wouldnt the HCV just bleed off the extra air?
__________________
DO NOT SEND PM
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
www.buybyebluebird.com

randy@randydupree.com
Reply With Quote
  #7  
Old 08-30-2009
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,942
Default

Tom,
If I raise the coach by pressurizing the output side of the valve, when the coach rises the valve will open and release the pressure. I would have to place a valve on the exhaust port to block it or use a three-way valve to lock out the leveling system completely.. The only drawback is I would need a way to prevent over-inflating the bags.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey

Last edited by gcyeaw; 08-30-2009 at 09:02 AM.
Reply With Quote
  #8  
Old 08-30-2009
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,942
Default

Crit,
I did plan on a secondary spring, I just haven't found the right one yet. The ride-height valve has a slip clutch so you can rotate the arm as far as you like beyond the extremes of valve movement.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey

Last edited by gcyeaw; 08-30-2009 at 09:01 AM.
Reply With Quote
  #9  
Old 08-30-2009
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 13,226
Default

Garner, Why not just mount your air piston as part of the level rod its self? The piston would then act to make the rod longer or shorter as needed. Would the piston be to heavy?
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
  #10  
Old 08-30-2009
tulipvendor50's Avatar
tulipvendor50 tulipvendor50 is offline
Senior Member
 
Join Date: Dec 2007
Location: Kitimat,
Posts: 1,305
Default dual height leveling system

Gardner

As Tom Warner has suggested, but even an improvement on that, take a look and see if you can find the air levelling system. I know a lot of bus owners use this system for levelling.
__________________
Bill
1972 Boler "Sad Shack"
Birdless but looking!!!!!!!!!!!
Reply With Quote
Reply

Bookmarks

Thread Tools

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 Jack Leak Jim Magowan Tires, Wheels, Brakes, Steering and Suspensions 12 03-24-2009 07:21 PM
HWH Corporation (Leveling Jacks) iamflagman Vendors 0 07-01-2008 11:45 AM
HWH Corporation (Leveling Jacks) iamflagman Vendors 0 07-01-2008 11:45 AM
87-89 dual groove PS pulley giderich FC (Forward Control Unique Issues) 6 04-20-2008 08:29 PM

Web Search:

All times are GMT -4. The time now is 12:01 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.