Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: oldmattb on September 12, 2021, 01:22:15 pm

Title: Disabled -air system
Post by: oldmattb on September 12, 2021, 01:22:15 pm
Two miles from the house, and the passenger rear dropped.  Kelly went home for some wood scraps so I can block and limp home.

I would love your ideas.  We have a trip planned and booked!

I have a spare ride height thingie.  I just cleared a pack rat nest in the vicinity - I don" t hear any loud hisses or etc.
Title: Re: Disabled -air system
Post by: oldmattb on September 12, 2021, 01:26:55 pm
The HWH panel will lift the corner, but it drops when I release the park brake.
Title: Re: Disabled -air system
Post by: dsd on September 12, 2021, 01:31:04 pm
Ride height valve. Raise manually to normal height and remove fuse to HWH. Drive home. When you release parking brake it takes it out of manual by removing a ground path and engages ride height circuit
Scott
Title: Re: Disabled -air system
Post by: dsd on September 12, 2021, 01:36:13 pm
Could also be broken follow up linkage on valve
Scott
Title: Re: Disabled -air system
Post by: oldmattb on September 12, 2021, 01:57:33 pm
I am home now.

I will block the frame, inspect, and replace the ride height valve.

I welcome ideas.  Are there any "if not that, then..." ideas?
Title: Re: Disabled -air system
Post by: oldmattb on September 12, 2021, 02:01:45 pm
Linkage is intact
Title: Re: Disabled -air system
Post by: Chuck & Jeannie on September 12, 2021, 02:26:54 pm
If you can raise the corner manually, then your air bags and lines going to them are good.

The linkage connecting the ride height valve to the frame can be "intact" but still slip out of proper adjustment.

Raise the coach up to proper ride height and hold it there.  Compare the linkage on the two rear height control valves.  They should look identical, with the lever on the height control valve in a horizontal position.

Title: Re: Disabled -air system
Post by: Barry & Cindy on September 12, 2021, 03:18:23 pm
If air bag and air lines are not leaking, then it is likely the ride height valve. For temp driving, manually raise rear or right side so it looks ok for ride height.

Other than pulling hwh fuse, we have removed that linkage, rotated ride height valve to 'off' position and ran a piece of tape around the ride height valve to keep it from rotating. That corner will remail at what ever position the hwh ride height system leaves it at.  It takes just a small rotation to go from fill to off, so rotate slowly.

We carry a length of 4"x4" wood to be placed between frame members so we can drive without tires hitting wheel well, but have never used it.
Title: Re: Disabled -air system
Post by: oldmattb on September 12, 2021, 03:42:54 pm
The ride height valve fixed it.  It would have been a quick job, but the attachment nuts and bolts were seized.

We may still make the campground before closing time!

Thanks all!
Title: Re: Disabled -air system
Post by: SteveB on September 12, 2021, 04:32:56 pm
We had the left rear drop down so the tires were rubbing on the fender well. It turned out to be the left ride height solenoid on the rear six pack.
Title: Re: Disabled -air system
Post by: dsd on September 12, 2021, 05:16:59 pm
We carry a length of 4"x4" wood to be placed between frame members so we can drive without tires hitting wheel well, but have never used it.
Get a old airbag from someone and put a schrader valve in it. Keep deflated till you install and inflate to lift coach. Doesn't need to be bolted in will stay in place. Adjust to about ride height level and your on your way. Also can use as a jack.

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Scott
Title: Re: Disabled -air system
Post by: oldmattb on September 13, 2021, 12:49:45 am
I carry a spare air bag.  That adapter is in my cart now!