Hi Folks,
I have a mac5200 makita air compressor. It fills the tank to 140 pounds, but turning the regulator up for any amount just bleeds out air and nothing makes it to the output line. I guess its probably the regulator and they only cost about $40, but it looks like a job to get at it, so if anyone has an idea if the problem is the regulator, please chime in.

thanks,
Stevo