Hyundai r35z-7 Workshop Manual page 310

Disassemble the check valve.
a.
Loosen to remove the plug (2-41).
b.
Remove the spring (2-40) and the
check valve (2-39).
Remove the relief valve.
a.
Loosen the plug (2-38-6) to remove the
relief valve assembly (2-38).
Do not move the adjuster kit (2-38-7).
Otherwise, the set pressure will change.
Do not disassemble the relief valve
assembly (2-38) because it is a
functional component.
Remove the disc spring assembly (2-19)
and the spring seat (2-18), and utilizing
the gage port of the case (2-1), remove
the parking brake piston (2-15).
The piston may be ejected by the air
pressure. Exercise sufficient care during
removal. At the beginning of the work, set
a lower air pressure and adjust it while
checking the piston for ejection.
2-38-6
2-38-7
2-18
2-19
2-18
2-15
7-50
2-41
R35Z77SM05
2-39
2-40
R35Z77SM06
2-38
R35Z77SM07
R35Z77SM08