Delete

Reading a thread without OP is kinda strange. Pages of guessing what somebody is wanting to do.

Horsedoc wrote:
Are you wanting to quantify the risk? if in doubt, find a truck mechanic that works in a pit under the coach. He knows what he is doing. Don't be asking for opinions on an internet web site.

See this, and years of maintaining my own and others trucks has proven to me this is the safest way to work under a vehicle. But because of the danger presented by open pits insurance companies are reducing their use

FWIW I believe I could drive my coach with the airbags deflated.

I have never heard of jacks falling down but I have heard of a coach dropping down when on jacks.

Doing risky things is your business but others read this so the warning was as much to those folk as you.

It's deleted but I believe it was your own sarcasm that brought on the posts you didn't like.

Okay, I wanted to just back away but since it won't die, I will respond, even though some of you are not going necessarily like what I am about to say.

Notice that there was not one answer to my posted question. But a great bruhaha went up because I was going to get under my coach to change our a filter element. I am going to be putting myself at great risk and basically I am being stupid. How many of you would have said that to my face if you we standing next to me. Some, I suppose, but I am suggesting that there is a easy path to acting all credible and instructive when you are just facing your monitor.

Now, if there is any one of you who is afraid to drive your coach down the road because you might suddenly lose air pressure (if you have air) or your jacks fall down and dig into the pavement (if youhave jacks (I don't) and therefore you might kill yourself or someone else on the road, then please be these first (or 6th or 10th, whatever) to cast your stones. But you don't refuse to drive do you? That most likely because you thoroughly trust your equipment and the build in safety features. I got my first motorhome in 1970, lost count since then, and still drive without fear today. Yes, I am old.

I completed my filter change this morning. As I was trying to find out when I originally posted, Instead I researched the path of air from the engine's onboard compressor. The air passes through the dryer/filter, than is distributed to the front and rear air tanks, from there it divides up to service primarily the air brakes and then other axillary items such as the HWH leveling system, the horn, etc. There are check valves in these systems, including the leveling system ,which prevents back bleeding of air out of the air bags if there is a failure in the primary air system. That holds the level of the coach at the last level to which it was set. The rear brakes also lock up.

So, after bleeding the air tanks to 0 psi yesterday, the leveling system (fully raised) stayed that way and this morning I did a 10 minute filter change and thereafter recharged the system. I do trust my leveling system to reliably do it's job and not put me in any unreasonable danger, no different than when I am driving down the road and depend on it to safely deliver me to my destination. And therefore I see no reason to be demeaned or accept the implication that I am stupid for doing something the does not have any significant history of accidents to back that concern up.

And finally, from a post above, this was the response from a search on Microsoft's Bing AI regarding a death from collapsed jacks at a FMCA rally. "I’m sorry, but I couldn’t find any information about anyone being killed under a coach at an FMCA rally in Perry, GA. It’s possible that such an incident may not have occurred or it may not have been reported. If you have any other questions or need assistance with something else, feel free to ask." If the poster has any resources to back that statement up, I am more than willing to listen.

LouLawrence wrote:
Sorry if I offended the OP, but knowing the dangers I wouldn't post anything differently.

I think your post was prudent. It just wasn't what the OP wanted to hear.

Sorry if I offended the OP, but knowing the dangers I wouldn't post anything differently.

Jacks are fine for changing tires but not crawling under the coach. I was at an FMCA rally in Perry GA when someone crawled under his coach, the jacks collapsed and he was under the differential. He did not survive despite the numerous people who tried to help.

StuartT wrote:
Withdrawn

Where'd ya go? Didn't mean to offend or run you off.

Come on back & I'll ease up. LOL

Stuart, why would you come on asking for advice and act as though you already know it all?
Lou was only looking out for you, he had nothing to gain except not having to read about you dying.

Stack some short 2x10s or 12s of different lengths & drive up onto them.
About 4 high should do it. And lower the coach & let out the air before crawling under. Yeah, many people have scooted under for something but not to do what you are doing. Come on man. LOL

Hard to fathom someone getting under a bus without any type of solid support. Pretty careless. Any way since you trust it, won't the jacks hold it up? I have had 3 Monacos and have seen the tire people change tires using the coach jacks. Or just pay a professional to change it. Good luck

Are you wanting to quantify the risk? if in doubt, find a truck mechanic that works in a pit under the coach. He knows what he is doing. Don't be asking for opinions on an internet web site.