Hyundai r35z-7 Workshop Manual page 112

4. SWING PARKING BRAKE RELEASE
TRAVEL MOTOR-RH
R/G
a1
P2(FW) P1(BW)
BOOM CYL
BUCKET CYL
Pa10
Pb8'
BUCKET
MAIN CONTROL VALVE
T2
Pb10
B/SWING
ACC
A1 A2 A2
LH RH
1
2
P
Pa2
Pb2
T
When the Safety solenoid lever is moved downward, the pilot oil flow into PB port of the swing motor
through solenoid valve. This pressure is applied to swing motor disc, thus the brake is released.
When the safety solenoid lever is moved to upward, oil in the swing motor disc cylinder is drained,
thus the brake is applied.
TRAVEL MOTOR-LH
R/H L/H
R/G
Ps Ps
a2 a2
P2(BW) P1(FW)
T1 T2 T2 T1
TURNING JOINT
Pa8
Pa7 P1 P2
Dr2
BOOM TRAVEL-RH TRAVEL-LH
Pb7 Dr1
Pb8
TRAVEL DOZER
L/H R/H
DOWN UP
2 1 4 3 1 2
Pb1 Pa1
Pb6 Pa6 Pb7 Pa7
2WAY OPTION SWING ARM
LH RH OUT IN
1 1 3 2 4
2
Pa3
Pa4 Pb3 Pb5
Pb4
Pa5
a1
DOZER CYL
ARM CYL
Pa6 Pa5 Pa4
ARM PTO
Pb6 Pb5 Pb4
BUCKET BOOM
IN OUT UP DOWN
3 1 2 4
Pb10 Pa10 Pb8
Pa8
3-9
SWING MOTOR
DB PB
"R2"
"R1"
STOP VALVES
GA B(CCW) A(CW) GB
Mu
Pa3 Pa2
Dr1 P3
BOOM
SWING SWING
T1
Pb3 Pb2
BU Pp1
PILOT PUMP
MAIN PUMP
A1 A2
R1 A4
S1 S1
B/SWING CYL
Pa1
DOZER
Pb1
A3
LINE FILTER
R35Z73HC06