Next Job On The List Brake Cylinders

Here is a  Goodyear master brake cylinder that was installed

 on sn#1500 

Notice the the wire that attaches between 2 cylinders  

this is part of the park brake mechanism  see next picture

As you cas see in the following picture there is a small spring that keeps a lever pulled back and unable engage with the segmented shaft of the brake plunger. 

To apply the park brake you must depress both brake pedals and then pull a cable knob in the dash which pulls the wire in the previous picture and engages the lever on the cylinder shaft thus  maintaining fluid pressure on the calipers and locking the brakes 

One word - Chocks

   

I  do not have any pictures of me overhauling these (brain fart)  but I watched a couple of videos - including this link 

(https://www.youtube.com/watch?v=UvKz1b8-tCs&t=302s)

and as you will see the Goodyear version has only  1  o-ring  - so basically clean up any corrsion, and install a new oring using some aeroshell 41 brake fluid to lube things then clean mask and paint and make it look new

After and before pictures