[Kent Dellenbusch]

Kent Dellenbusch on February 25, 2023 at 11:45 am #21852

Hi Arrow,

Steve is at a trade show but here are two conversations that might help. Hopefully this will give you a head start. 
You will have to log in. 

https://www.www.piperflyer.com/maintenance-technical/694-bleeding-the-piper-pa-28-pa-32-and-pa-34-brake-system.html?jaredirect

—  and —

https://www.www.piperflyer.com/articles/art-cats/87-magazine/digital-magazines/2020-online-magazines/1331-january-2020-piper-flyer-magazine.html?jaredirect
 
 

[STEVE]

STEVE on February 21, 2023 at 2:51 pm #21851

Hi, 
A member sent this to me.
If you have enough people it’s worth a try:

“As we were finishing a second (unsuccessful) brake bleeding attempt on our Seneca this week, a Cherokee 6 owner in a hangar nearby checked to see how we were doing. He suggested the following method to bleed the brakes:
He had one of us sit in the left seat holding the brakes down and the other sit in the right seat pumping the brakes while also pumping the handbrake. We did this individually on both the left and right main wheel B valves. It worked! Two days later we repeated this procedure just to ensure that we had indeed removed all the air and that the brakes are firm and holding. They are.”

Please let me know if this works for you. 

I can dig up some more plans if needed.

Best,
Steve

[Arrow 1968]

Arrow 1968 on February 21, 2023 at 8:30 am #21849

I have a 1968 Arrow (retractable gear) and have two on going issues with the brakes.  The first is the brakes sticking.  It seems to be the right brake will stick typically after using the hand brake for a run up.  I’ll tap the toe brakes, zig zag while I taxy and eventually something happens and you can feel the resistance suddenly go away.  Not sure if this is sticking caliper or signs of something else.  The second issue I have which may be related is the toe brakes are spongy (pilot and co pilot).  The lines to the calipers were replaced and the mechanic tried their best to bleed them.  If I use the hand brake, it always works and if I pump the hand brake a couple of times the toe brakes come to life.  Anyone know of the solutions to one or both of these problems?