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Old 11-20-2008, 07:42 AM   #1
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I'm having a local mechanic install Super Steer Motion Control Units on my coach this afternoon. He does not have a pit to work in. My level system is HWH. If I deflate the bags and raise the front up high and he cuts the air line will everything remain static?
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Old 11-20-2008, 07:42 AM   #2
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I'm having a local mechanic install Super Steer Motion Control Units on my coach this afternoon. He does not have a pit to work in. My level system is HWH. If I deflate the bags and raise the front up high and he cuts the air line will everything remain static?
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Old 11-20-2008, 08:16 AM   #3
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">HWH </div></BLOCKQUOTE>
You MUST use a pair of JACK STAND's.. The hydraulic portion of your system should remain totally operational and hold the RV up... But Safety First... use a pair of JACK STAND's or large blocks of wood.
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Old 11-20-2008, 08:38 AM   #4
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NEVER go under a coach in that situation.

One of our members suffered a fatal injury when his coach fell on him.
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Old 11-20-2008, 08:55 AM   #5
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I had my SSMC valves installed by Brazels RV, a site sponsor. The mechanic deflated the air bags, the coach settled as advertised, he wiggled under the coach and installed the valves in a matter of minutes, all work done on the asphalt in their RV parking area and with no problems whatsoever. Since the air suspension was completely deflated, there was no way the chassis was going to come down any further. It took him longer to bleed the system, re-inflate it and check for air leaks than it did to actually install the high dollar air flow restriction devices, which by the way do work as advertised.
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Old 11-20-2008, 09:00 AM   #6
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Due to the design of the Alpine chassis, the coach is too low for most access under when dumped. I always add a few jack stands while under coach.

Chris,

I installed my front SSMC units thru the wheel well with the wheels turned so that the rear of the tire was out.
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Old 11-20-2008, 01:49 PM   #7
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Hi Chris,
This may be a bit late. I installed my motion control units on my coach. I raise the coach and use jack stands for support, when I'm under the coach. For my coach the rear bags were easy. The front (IFS) suspension. took a bit longer. There is not much room on top of the bags. It's one of the few time I appreciated having long skinny arms.

The coach is resting on the jack stands, when I'm under it. My jacks are still touching the ground.

The longest step for me was cleaning the outside of the air line before I mounted the motion control devices.

They work great. I would make the purchase again. One last comment, the coach does take longer to air up and dump.
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Old 11-20-2008, 07:51 PM   #8
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I drive the coach up on wooden ramps dump the air and chock the opposite axle/wheels and crawl under the coach. It is a tight squeeze, but I have done it and I am no little guy.
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Old 11-20-2008, 08:28 PM   #9
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Dale
Do you have picture on how you installed them through the wheel well. Your great with posting pictures.
Thanks
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Old 11-20-2008, 09:14 PM   #10
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One of the dumber ways to die.

Drive the coach up on some 2x12's, dump the air, and then work on it.

Never get under the coach when it's supported by the hydraulic jacks. Period.
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Old 11-21-2008, 05:53 AM   #11
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Nick,

I'll take some today, when they are OKed I'll post them.
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Old 11-21-2008, 09:14 AM   #12
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Nick,

I installed my front SSMC units in the wheel well on the fronts, as the tubing right out of the air bag is in a very tight area between the fuel tank and the frame rail. The rears are installed right next to the air bags.

I removed the tube that went forward, from the ride height control valve to the dump valve. To make sure it was the right tube, I pushed in on the side of the air bag, then covered the end of the loose tube with my finger. I made sure that the air bag did not swell back to its normal size until I took my finger off of the tubing. Once I was sure that I had the right tube, I cut the line, cleaned it and installed the SSMC unit. You will notice that the proper tube is connected to the ride height control valve differently on each side.

With the installation done this way, the front will dump faster than the rear. I plan to use this feature for "air leveling" when stopping at camp Walmart for the night, since I don't use the jacks there. If the lot is not level, I will park with the coach pointed uphill. I will then dump the air so that just the front drops, wait for the coach to re-level, using up the remaining air supply and then re-dump just long enough for the front to drop to where I want it.

Passenger's side.


Driver's side.
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Old 11-21-2008, 01:27 PM   #13
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Dale,
I am confused. I am not sure of the order of the valves but shouldn't the SSMC be between the bag and the height control valve? It is the action of this valve that we are trying to mitigate.
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Old 11-21-2008, 03:13 PM   #14
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Rick,

You are correct and that is how I installed them. What is confusing you, is that the dump valve is between the ride height control valve and the air bag. My rear SSMC unit is mounted between the dump valve and the air bag. The front, is mounted between the ride height control valve and the air bag ahead of the dump valve.
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