Pressure at gladhands?

[derpschitz]

I've been searching the google and this forum trying to find the answer to "what is the air pressure coming off the gladhands" but can't find any info. My intent is to find out if there is enough flow off the emergency line to run an impact hammer capable of moving the lugnuts. Thanks!

 

[NDT]

I have a 1" impact wrench that sucks 11 to 46 CFM depending on load and yup the FMTV air system can handle it through the emergency gladhand.

 

[derpschitz]

I have a 1" impact wrench that sucks 11 to 46 CFM depending on load and yup the FMTV air system can handle it thought the emergency glandhand.

Awesome, this is exactly what I wanted. I have a big 1" impact wrench as well, so long as the truck has enough air to loosen the lugnuts enough to get them off by hand the rest of the way, I should be good. Thanks!

 

[Third From Texas]

I take it you already know the parameters to make the front REAR glad hand even work as a air supply. *edit

That said, I much prefer tapping a fitting and disconnect right off the fittings next too the tank.

Because...reasons.

 

[Ronmar]

Uuuh you cannot make the front glad-hands supply air they are “innies” only…

i ran my plasma cutter off of the rear emer glad-hand, worked great

 

[GeneralDisorder]

I keep a 50' glad hand hose on my truck. With a tire inflator and impact. Works great. I also keep a blow gun on hand - great for blowing the dog hair out of my cab, cleaning my HVAC filter panel (AC console has recirc filter), and blowing the dust out of my habitat, etc.

I have run a 3M DA Oribital sander, die grinders with pads and wire wheels, etc. Very useful. Remember to put the truck on high idle if you are using something that needs a bunch of air. And service your dryer appropriately if you are running tools a lot and not just the intermittent compressor operation for the service brakes. The more the compressor runs the more water it will condense and the more often the drier will need service.

The pressure will be whatever you compressor unloader is set to. Usually and per the spec it should be 125 psi.

 

[G744]

I have a 1" Chicago Pneumatic wrench and my M54A1 won't run enough air to take off more than 1 nut without a wait to rebuild air, even at high idle 2100 rpm. Apparently the line size is too small to deliver the required CFM.

I solved it by using a larger portable tank, filled from the red port. When filled, the wrench runs off that tank and does the job easily.

However, I parked all that stuff in the shop and bought a battery-electric impact for the road, and it will easily do more than three wheels on the 5-ton without any hassles.

I've seen military 24-Volt impacts as issue nowadays.

 

[Third From Texas]

In case the engine has an issue, and

Uuuh you cannot make the front glad-hands supply air they are “innies” only…

i ran my plasma cutter off of the rear emer glad-hand, worked great

Yeah, I typed gladhand...and went back to add rear (but brain farted when I did). He'd have figured it out, though. LOL

 

[G744]

I suspect success running an air impact with a newer 5-ton is easier, as their air system is designed to support full air brakes.

My '67 5-ton has air=over-hydraulic brakes, and the air demand is less than the others.