Brakes lightly locking up

[Cumminscruiser]

I have a '98 LMTV which I just drove 1800 miles without any problems. For the last month I have been cleaning it and painting the interior and exterior. Went to moveit and I can hear some squeaking at the wheels because the brakes are dragging. Although they are not locked up. The truck will move and over power the brakes but I can feel the drag. There is no rust at the drums. I do not hear any leaks but it's hard to tell with the engine running. Does the tire air pressure have any effect on the brakes? The system shows 120psi.
Thanks

 

[Cumminscruiser]

A little more checking and it looks like the rear brakes are responding correctly. I removed the blue caps on the brake aviators and can see them move. There is no way that I can see to check if the front are moving correctly.

 

[NDT]

Welcome to the forum. Any brakes that are dragging you will know it, as they will get stupid hot. If the rears are dragging, cage the 4 cans to eliminate the parking system. Also make sure your front emergency glad hand cover has a functioning vent.

 

[Cumminscruiser]

I think you hit it on the head. I did replace the glad hands with disregard for a vent hole. I'll check it out tomorrow morning.

thanks

 

[Awesomeness]

Also make sure your front emergency glad hand cover has a functioning vent.

Why does it need a vent, and what happens if you don't have a functioning vent? (I suppose mine is working, I'm just curious since you mentioned it.)

 

[Suprman]

The brakes release air out of the gkadhands. A blocked front blue gladhand will cause your brakes to not release. A blocked red front gladhand that is blocked off because its leaking air will release your brakes when you don't want them released. Either way it won't work out well for you.

 

[Cumminscruiser]

All fixed it was the wrong cover on the glad hand silly me!

Thanks!!!