Disassembly (A-541E)

Remove No. 1 and No. 2 solenoids with retainers. Remove No. 3 solenoid. Remove lock plate. Remove OD brake accumulator assembly. Apply compressed air to vent hole on side of accumulator cylinder to remove piston. Remove No. 4 solenoid.
Remove lower valve body cover No. 1. See Fig 1. Remove separator plate and gaskets. Remove oil strainer, check valve and spring. Remove pressure relief valve (plate, spring and check ball).
Remove lower valve body cover No. 2. Remove 2 check balls, oil strainer and vibrating stopper. Turn over No. 2 cover. Remove 2 screws and lift off separator plate and gaskets. Remove 3 check balls. See Fig 2.
Remove bolts securing upper valve body. Lift off upper valve body and No. 1 separator plate as a single unit. Turn upper valve body over without allowing check balls to fall out. Remove separator plate. Remove check ball and vibrating stopper. Remove check balls and oil stainers from lower valve body.

Fig 1: Exploded View Of Valve Body Assembly (A-541E)

Fig 2: Identifying Lower Valve Body Cover No. 2 Check Ball Locations (A-541E)