Hwh Computerized Leveling System

[0533]

I am about to head out and pick up my new coach at the Marathon factory. One of the service items that was done to the coach was to replace the (ADD'L AIR COMPRESSOR) that operates the HWH COMPUTERIZED LEVELING SYSTEM. How well does this system work? I am hoping to get a better understanding of its benefits. Wish I had my hands on the manual.

Thanks,

Bruce

[merle&louise]

Bruce,

I have had excellent service from my HWH computerized leveling system. Just press the AIR level button twice and the coach automatically levels in about 2 minutes. It will also raise the coach or lower the coach about 4 inches while moving at very slow (under 10 mph) speeds. I use this "lowering" feature to enter my garage. The "raising" feature can be used to keep the coach from scraping when exiting a drive way.

[0533]

Thanks, i like to notion of being able to use it for curbs and getting under tight spaces, all sounds good. No unusual service issues???

Bruce

[Just Plain Jeff]

Ayup.

We had the HWH system in our Vogue (Great coach). It was great both for the flat surfaces in Florida and the less-than-perfect 'campsites' up to Maine.

You made a good decision to get the HWH.

[0533]

Ayup.

We had the HWH system in our Vogue (Great coach). It was great both for the flat surfaces in Florida and the less-than-perfect 'campsites' up to Maine.

You made a good decision to get the HWH.
I can thank the original owner who had it installed. I have just replaced the Air Pump and had it inspected. My driving will be in all of those places. Are you saying that the auto leveling can adjust for a truly uneven maine camp site? How much out of level can it adjust?

[Just Plain Jeff]

Yessuh. She'll do some fine up to Maine. You just put it to her and she'll level you right up. Don't rightly know the distance, but she's some good. If you was to muckle down on them beans down to the Grange on a Saturday night, she might get some beamy on you though, Mistah.

The HWH is wicked good.

[0533]

Yessuh. She'll do some fine up to Maine. You just put it to her and she'll level you right up. Don't rightly know the distance, but she's some good. If you was to muckle down on them beans down to the Grange on a Saturday night, she might get some beamy on you though, Mistah.

The HWH is wicked good.
I think you have been listening to your old Burt & I records. We used to hang out at the Desert of Maine at night around the camp fires telling Burt & I stories, remember the "Bangor Packet", maybe you are too young for all of this???

On the level.

[Just Plain Jeff]

Bruce:

I have enjoyed reading your posts...so much so that it seems as if we write exactly the same way.

Is POG ready for TWO of us? You will have to start wearing heavy socks and wear thick glasses.

Yes, I am too young for Burt and I; and from, "Away."

[Jim Skiff]

I don't say much, but JPJ is certainly NOT too young for Burt and I.

Our new members from Bath will verify that.

"Steam rose up from his sheets like it does from a manure pit." The late Marshall Dodge.

Burt & I stories equate to Pecos Bill stuff in Texas and Jackalope Stories in Douglas, Wyoming, etc. We'll tell them around the clambake at our Maine Rally.

Bruce, help me out here, we can't let him push aside Maine culcha.

Jim

[truk4u]

Pam & Bruce,

I have the HWH in my CC and had 3 or 4 earlier plastic coaches with the HWH. With the Prevost, there just isn't enough volume in the Aux Air Pump to do much good when the system tries to maintain level after you shut down the engine. The bus is so heavy, I think the aux air pump would run all day and never bring up a bag or two. I use it to auto-level the bus at high idle and then shut it off after killing the engine.

Also, on mine, the Prevost level low does the same function manually and I can't get the HWH to raise any portion of the bus further. In my opinion, it's just an auto-level and that's it.

Others with different converters may have different experiences...

[0533]

Check out this link, and click on "Mad Dog", one of my favorites. I have to believe that all Pog members will appreciate good Maine humor.

http://www.bertandi.net/listen.html

[0533]

I sure hope that I won't fall out of bed when the air runs out.

[Jon Wehrenberg]

A word about your suspension system. Once your coach is level, the aux system can go to zero PSI and the coach should not move. Now this does not mean your air bladder tanks such as on Tom and Paul's coaches can be bled, but it does mean if the air bags are leak free and the five port Norgren valves and the three port valves for the tag axle air dump are not leaking your bus should not move. If it does you have a problem.

As near as Hector and I can tell, later model coaches require the ignition key to be on before any of the leveling system functions will operate so leaving the selector in the automatic level position may not even work with the key off.

That was not true on my 87, and all leveling functions would operate regardless of key position.

As to whether an aux compressor will have the oomph to level the coach, the short answer is maybe. The likely culprit to prevent that will be the front because two air bags may have to support up to 18000 lbs, and it may require as much as 120 PSI in the front air bags to do that. the rear air bags may only require 80 or 90 PSI to raise the coach.

If your aux compressor shuts off at 100 PSI and cycles back on at 70 for example, it is probable you will just find it easier to fire up the engine.

[Ray Davis]

Also, on mine, the Prevost level low does the same function manually and I can't get the HWH to raise any portion of the bus further. In my opinion, it's just an auto-level and that's it.



My '93 Country Coach had the HWH auto-level, and I found it quite handy. I think the nicest part was being able to dump the coach with the flip of one button, and it just settled down to the ground. It didn't always level enough, but it came darn close.

Now on my newer bus I don't have the automated system, and it's kind of a pain in lowering the bus, having to remember which to lower first. I guess the rear has to come down first, and go up last? Dale posted on that awhile back.

It was a lot earlier just hitting the button, and dumping.

One thing I will mention which will get your shorts in a bunch real quick though, is having someone accidently hit the dump switch while you're driving.

In my CC, it was over the right hand side by the passenger (in the front corner), and could get knocked by the sunshade.

Ray