Figure 12–52.—Seal replacement and piston return adjustment.
Figure 12-52 shows the various steps involved in
drive pin to force the adjusting pins through their grips
replacing the piston seals and adjusting the return
and remove the pistons from the housing. Make sure that
mechanism. The internal wrenching bolts holding the
the drive pin is centered on the adjusting pinto prevent
cylinder housing to the carrier and backplate are
damaging the adjusting pin packings and grips.
removed (view A). The cylinder housing is placed under
Next, cut the lockwire on the locknut. Use the
a press, as illustrated in view B. Use the press and the
threaded bushing wrench, illustrated in view C, to
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