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9. Now pressure check the brake cylinder assembly with
the hand pump connected to the 1/8” NPTF elbow in
the top of the assembly.
Apply 1000 psi and let the unit set for 5 minutes. If the
gauge does not register a pressure drop, it means you
have installed the O-rings and backup rings correctly.
7. Use a press or the special compression tool to com-
press the springs. Make certain the threaded portion
of the compression tool fully engages the lower plate.
Install the retaining ring using snap ring pliers. Be
careful to not let the pliers slip out of the retaining ring.
After making certain the retaining ring is in place,
release the compression tool slowly, holding the
threaded portion of the tool stationary, while backing
off the nut.
8. Turn the assembly over and place the brake piston
plate over the brake piston. Install the spiral retaining
ring in the groove in the brake piston.
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