Jump to content

How to track down air leaks?


Recommended Posts

45 minutes ago, Dmurph2016 said:

Didn’t see any, I’ll have to get some wood under there and do some looking around 

That's a J & J  there's a body prop right to the left (driver's side) of your hoist. That should swing up into position and will stop an EMPTY body from crushing you.   Trust me on this one kid.... if you have enough brains to figure get'n under an unsupported body is a lousy idea ?  you can probably do better finding an air leak than you think

Link to post
Share on other sites
  • Replies 106
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

I figured that there had to be an air dryer but I’m just not seeing it. The guy I bought it from had a few other trucks that he ran, so I am not sure if the drivers were just lazy or what. I will admi

I saw a guy killed under a dump body that fell on him when I was fairly young.  Never forgot that. If you block it up, use huge, solid pieces of wood.  Don't take chances under that thing.  I don

That little red cap valve ??   That truck can ( and likely does ) have more than one. Might find one on an air tank you can see from under the truck .  And they could be on either system.  Make liked

Posted Images

You said it only drops air when the lift axle is in the up position right? If so it very likely will be on the lift bag portion of the lift axle setup.

Link to post
Share on other sites
Posted (edited)
2 minutes ago, MackTech said:

You said it only drops air when the lift axle is in the up position right? If so it very likely will be on the lift bag portion of the lift axle setup.

I haven’t tried keeping the axle down and seeing if the pressure drops still, But yes, keeping it in the up position, come back out 2 hours later the axle is down and there is less 70-60 psi on the gauge. So there’s a big enough leak that when the pressure gets too low the axles just going to drop. I guess I’ll have to check the bags/ hoses out next 

Edited by Dmurph2016
Link to post
Share on other sites
  • 3 weeks later...

I saw a guy killed under a dump body that fell on him when I was fairly young.  Never forgot that.

If you block it up, use huge, solid pieces of wood.  Don't take chances under that thing.  I don't think a 4X4 is near big enough.  The mechanic at our shop had 10X10 and 12X12 timbers he used under those things.  He also had some steel-framed contraption he made that worked under certain bodies.

Be careful.  Gravity's a bitch.

  • Like 2

"Eagles may soar, but weasels don't get sucked into jet engines."

Link to post
Share on other sites

AMEN!!   i also put a jack stand under the tag axle, just in case it wants to come down while im under it. 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...