Hyundai HX145LCR Manual page 625

(21) From parking piston separate O-ring (20) and
back-up ring (21).
(22) Lay casing down horizontally and remove
cylinder block assembly, friction plate (17) (3EA)
and separator plate (18) (4EA).
(23) Separate retainer plate (15) and piston assembly
(16).
Take care not to damage sliding surface of each
component.
(24) Disassemble ball guide (14) and spring (13)
(9EA).
Do not lose spring.
Do not mix spring with other springs.
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