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Re: slide shear pin

Reply #25 – March 04, 2014, 09:41:43 am

Yahoo Message Number: 94250

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Mikee, clearly you have a wealth of experience to call upon and I would like to understand why in your opinion extending the slides with the coach out of level is a better proposal. In my simple layman approach it would seem that with the coach level the steel sub frame is level and the main coach body is level. The slides then run out without undue gravity holding them back or accelerating them out, and equally not loading one slide mechanism (assuming more than one on the slide out) more than the other. All very logical, and if the manufacturer defines this in the manual, and installs interlocks to ensure correct procedures as so defined, why would an owner be motivated to ignore the instructions? Whilst I accept that a manufacturer can get things wrong, this is a very fundamental practice which does have some laws of physics to evidence it. Anyway as I say I have no choice save to get an electrician to bypass the interlocks.

Michael

2008 Allure 31683

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Re: slide shear pin

Reply #26 – March 04, 2014, 10:20:05 am

Yahoo Message Number: 94251

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Interesting conversation. Several coach makers have interlocks to prevent extending the slides unless in ride height. Seems to be a mixed point of view.
I will say with air suspension it is not as critical, but with jacks the chance of chassis distortion is greater.
Now, the mechanical slides mechanisms tend to be less powerful and have shear pins etc, so they may not have the umph to move a slide unless it is level.

3 point jacks tend to flex the chassis less than 4 point jacks.
When in ride height the chassis may be off level, but it is not under flex stress. Again with air leveling it is not as critical.

Mikee

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Re: slide shear pin

Reply #27 – March 04, 2014, 12:08:47 pm

Yahoo Message Number: 94253

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I have no doubt, that the mfg's engineers provide the spec's on what they felt is the least impacting method of leveling vs slide operation.

I've also seen say engineer 1 insist that the only way to get to '4' is by 2+2. While in the same room, using teh same information to base his opinion (could have been a her too, but most of the time the opinionated ones are 'he's'), concluded very firmly that the only way to get to '4' is by 3+1.

Suggest following your manuals directions, if outlined. If not, to network with other coach owners that have your specific year and model for their best practices.

But as Don pointed out, even with air bag leveling, some sites are just not as easy as other sites to get leveled in. This could be a limitation in the range of individual corners up/down, so a different coach even within the same mfg, may have no problem leveling on a site that was a 'no go' for another coach owner.

We learn our coaches, and use them based upon what we've learned...

Good conversation and info sharing, especially important to recognize the differences between air and 'to the ground' leveling systems.

Best to all,
Smitty

04 Allure 31017

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