Originally Posted by Dasher
Hi John, I have the same vehicle colour and setup as you do in regards the WDH do I need to have the vehicle running when hooking up and attaching the WDH or off so that the QL dosen't make the height adjustment before the WDH is set???
Short answer - off and QL disabled
For the long answer -
I posted this on the australian site http://caravanersforum.com/viewtopic...882&start=2060
( on page 104, and if you haven't checked out this thread about the Jeep Grand Cherokee diesel on that forum it will keep you going for many happy hours....)
"Forumites will definitely be aware that the WDH debate is still quite healthy........I'm a believer and happily use a HR unit on our WK2 with QL, but how to determine how much weight to use on the bars????
Having towed the same van over 120,000k with several Patrols that did need the WDH to get the back up and push some weight forward, after the initial setup I could judge by the weight on the lever and the snap of the chains pretty much, over the years.
When we took delivery of our new WK2 with QL air suspension, the WDH head finished up the same height as the Patrol - but the ball to axle dimensions were different hence I had to recheck the setup.
As the QL is self levelling it is impossible to do this with the engine running, or even shut off as the thing will start the compressor to self adjust to a "cosmetic level" some time after standing.
I didn't have access to scales, so measurements at the wheel arches were the way to go - and was able to do this by disabling the QL - pressing the up/down buttons together. The Jeep then responded to chain tension as I experimented with different links snapped up.
I didn't change the WDH head angle and finished up one chain link less than the Patrol setup.
Three trips later with the Jeep and over 13000k - more than happy with the way the package tows and handles.
I also found some interesting comments on exactly this here:
Dasher - likely you will have to start from scratch - check out the other threads regarding WDH on the other forum as well for detailed advice on how to correctly set up a WDH. In particular here: http://caravanersforum.com/viewtopic.php?f=2&t=30024
- on page 1 of the thread see the answer posted by Cabcar (who for many many years has run a large and very sucessful caravan repair business on the Sunshine Coast in Australia).