M105A3 Brake actuator sticking

[AOR]

I have an M105A3 that I have needed to lockout the brake actuator with a pin because it sticks and locks up the brakes. I did not see an exploded parts breakdown in the TM. I also have not found a match yet. It does look similar to one I found on etrailer but there are several differences. Has anyone taken one of these apart to deal with this issue? I think mine sat for 10 or more years without being used. Does anyone have a known good actuator to sell? I know these trailers are rare. I am not afraid to dive in and take it apart. I would like to have a parts source before doing so.

 

[AOR]

I decided to dive in. I took everything apart in the actuator assembly and cleaned it all up and put it back together and test drove it. The brakes no longer stick in the locked position. It's a simple design and easy to figure out. The only thing unusual was that the bushings that mount the rollers are drilled and tapped offset to allow 4 different mounting positions for each roller. Just pay attention when taking things apart. Here are some pictures incase this may help others in the future.