Howdy...............

A friend of mine has a 1975 Cherokee 180 with brake problems. The whole system has been overhauled and seams to have air or something in the system. Are there any special procedures to bleed a Cherokee 180 brake system that are different from other models of aircraft? The Cherokee brakes functioned OK about 3 week ago, not flown for 3 weeks, and attempted to use today. The left brake functioned and the right brake was non-functional. Any suggestions? These problems also existed prior to the brake system overhaul.

Jim

Cherokee's can be nasty to bleed sometimes. Best from the bottom up, with a pressure pot, or with a speed bleeder top to bottom.
Sounds like the dyna seal is damaged in the master cylinder, so you get to pull the masters again.
I usually just pull the guts out, and leave the cylinder bolted in, saves a bit of work.

You could have a problem with pin hole in the line some place. Or a loose fitting. Check for brake fluid running down the lines.

Howdy....................

Thanks for your inputs. Looks like the Cherokee has some unique brake issues. I'll pass on your suggestions.

Jim