REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
Place SST on the return spring and compress the return spring with a press.
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Using a screwdriver, remove the snap ring.
Remove the 2nd brake piston return spring.
REMOVE 2ND BRAKE PISTON
Hold the 2nd brake piston and apply compressed air (392 kPa, 4.0 kgf/cm2, 57 psi) to the 2nd brake cylinder to remove the 2nd brake piston.
Hold the piston with a shop rag or a piece of cloth when removing the piston. Failure to do so may result in the piston jumping out from the cylinder.
REMOVE 2ND BRAKE PISTON O-RING
Remove the 2 O-rings from the 2nd brake piston.