Group 4 Main Control Valve - Hyundai r35z-7 Workshop Manual

GROUP 4 MAIN CONTROL VALVE

1. REMOVAL AND INSTALL OF MOTOR
1) REMOVAL
(1)
Lower the work equipment to the ground
and stop the engine.
(2)
Operate the control levers and pedals
several times to release the remaining
pressure in the hydraulic piping.
(3)
Loosen the breather slowly to release the
pressure inside the hydraulic tank.
Escaping fluid under pressure can
penetrate the skin causing serious injury.
When pipes and hoses are disconnected,
the oil inside the piping will flow out, so
catch it in oil pan.
(4) Disconnect hydraulic hose.
(5)
Disconnect pilot line hoses.
(6)
Sling the control valve assembly and
remove the control valve mounting bolt.
Weight : 25kg(55lb)
(7) Remove the control valve assembly.
When removing the control valve
assembly, check that all the piping have
been disconnected.
I I NSTALL
2)
(1)
Carry out installation in the reverse order
to removal.
(2)
Bleed the air from below items.
Cylinder(Boom, arm, bucket)
Swing motor
Travel motor
See each item removal and install.
Confirm the hydraulic oil level and recheck
(3)
the hydraulic oil leak or not.
A
Pb8
Pb6
A
7-33
A10 A9
B10
B8 A5
A4
B5
A2
B2
R35Z77MCV01
H
F
J
G
E
B
D
Pa10
Pa8
Pa5
Pa3
Pb10
Pb8
Pb5
Pb3
R35Z77MCV02
A
Pb8'
Pa8
Pa7
Pa6
Arm
Ground
Boom
Pb7
Up
Pb5
R35Z77MCV03
13031GE18