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Sandia Man

Rio Rancho, NM

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Joined: 08/09/2008

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Posted: 10/21/21 10:42am Link  |  Quote  |  Print  |  Notify Moderator

For oil and filter changes on engine and Allison tranny I can squeeze under without using jacks, most times just drive front tires up on jack pads for added space. I don't change tires on our rig and certainly would not consider relying solely on our coach's power gear jacks for doing service work where rig tires were not firmly on the ground. Sure, it adds extra time to the job but the proper set up for safety reasons allows me to do the task effectively, I don't like being in a hurry due to safety concerns.

crawford

Dandridge Tenn.

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Posted: 10/22/21 09:30am Link  |  Quote  |  Print  |  Notify Moderator

my F 53 with 22.5 tires I can slide under even with my belly not hitting LOL


Change from a c class to a A class Georgetown 07 triple slide

Dutch_12078

Winters south, summers north

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Posted: 10/22/21 11:32am Link  |  Quote  |  Print  |  Notify Moderator

rlw999 wrote:

Dutch_12078 wrote:

I can crawl under our gasser without the jacks deployed for an oil change, but raising the front a few inches gives me a little more elbow room. Since a failing jack in this case won't endanger me, I don't drag out the jack stands.


This still sounds like it could be unsafe -- if the jack fails suddenly, the suspension is going to compress a bit so if it was a tight fit before, it might be on top of you when it comes down. And it might be when you slid under a frame member to pick up the drain plug that rolled away... maybe you kicked the jack while you were scooting over and knocked off the hydraulic line.


For oil changes, I slide in from the front center of the coach nowhere near the jacks. I've never seen a straight RV hydraulic jack fail so badly it instantly collapsed. I have seen a jack fail with a broken fitting and another with a blown hose. In neither case did the jack retract fast enough to cause any significant deflection of the suspension. Kick-down jacks are different story, but I don't have those. We could play "What if" games all day, but the fact is there's likely more risk when placing the jack stands than there is leaving them out for oil changes for me with my coach.


Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate


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