Hyundai HX145LCR Manual page 514

(13) Remove spring (16) (24EA) from parking piston.
(14) Disassemble parking piston (15) from casing
using air gun.
(15) Lay casing down horizontally and remove
cylinder block assembly from shaft.
And remove all friction plate (13) and separator
plate (14).
(16) Separate piston assembly (12), ball guide (10),
retainer plate (11) and spring (9).
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