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Topic: Fittings and hoses for the step cover? (Read 940 times) previous topic - next topic

Fittings and hoses for the step cover?

Where would I find the fittings and hoses for the step cover?  Also, what are these Gage's under the front of the coach near the the steps and the right air storage tank for?
Thanks, Mike

Re: Fittings and hoses for the step cover?

Reply #1 –
Quote from: Yetch –
What are these Gauge's under the front of the coach near the the steps and the right air storage tank for?
Thanks, Mike


The one by the air tank set at 60 psi is so the front of the coach does not rise faster than the rear when in travel mode. The other is probably for the movable step cover.

Re: Fittings and hoses for the step cover?

Reply #2 –
The two gauges nearest the step are on regulators for the interior step cover and for the external step that folds up and down as appropriate.

We (FOT) recently replaced the regulators and valves for the step cover and the folding step. We (FOT) replaced the plastic strips on which the step cover slides. FOT also replaced some check valves in the area. The moving parts work much better now and the system holds air much better.

Re: Fittings and hoses for the step cover?

Reply #3 –
How and where do I gain access to the step cover mechanism?

Re: Fittings and hoses for the step cover?

Reply #4 –
Quote from: Yetch –
How and where do I gain access to the step cover mechanism?
The electro-pneumatic valves are near the regulators on the housing for the step. I don't know how you get to the actuators for the step cover.

I thought we heard leaks in the actuators for the step cover, but all is working well after FOT replaced regulators, valves, and some fittings. I don't think they touched the actuators.

Re: Fittings and hoses for the step cover?

Reply #5 –
The step cover cylinder is notorious for leaking when retracted and not leaking when extended.

To check with air pressure present, open door and step outside.  Have the cover extended so you can remove the clip holding the ram to the cover.  Retract the ram leaving the cover extended.

Spray soapy water onto retracted ram and seal and watch for bubbles.  Bet you will find some.

Re: Fittings and hoses for the step cover?

Reply #6 –
Is this all visible under step cover when extended, or do I need to open up panels?  I do have an air leak somewhere in the right front area which is causing the coach to lean after a couple of days sitting idle; no leveling engaged.  I have so far found 2 air leaks in the area around the back side of the steps, and have fixed those. The plastic cover for the air gage behind the steps is gone, but gage still seems to be working.  I am trying to figure a way to check the right foreword airbag fitting, any suggestions?  I know there is a leak in the right front area somewhere...

Re: Fittings and hoses for the step cover?

Reply #7 –
Mike,

The step cover and regulators you have asked about should have little to do with the coach's leaning while parked. Our coach used to lose all pressure on the gauges in the dash after a couple of days. That would correspond to no pressure for step cover, outside step, and brakes. However, the coach would stay level even with the leveling system turned off.

The leakage that allows the coach to go out of level when parked would be in the HWH "six pack" of air valves, in the lines from the "six pack" to the air springs, or in the air springs themselves. The leakage in the "six pack" can be internal to the device and hard to detect using the soap bubble method. Leaks in the fittings and lines to the air springs should be detectable with soap solution. Also, leaks in the air springs are probably detectable with soap solution.

A search of the forum for "six pack" will yield a lot of information about the leveling system.

Re: Fittings and hoses for the step cover?

Reply #8 –
Quote from: Yetch –
I do have an air leak somewhere in the right front area which is causing the coach to lean after a couple of days sitting idle; no leveling engaged. 

Mike,

Have you ruled out the o-rings in the leveling manifold (aka the 6-pack) by checking the solenoid valves with soapy water?  It's not uncommon to find a leak there.  A leak through the right front "lower/exhaust" solenoid might cause the symptoms you're seeing.  IIRC we've replaced all our o-rings twice in the 10 years of our coach's life.

Michelle

(Darn - Dave beat me to hitting "send" :P )