Hyundai HX130LCR Manual page 141

4. TRAVEL SPEED CONTROL SYSTEM
LH
T*
Ps
DR DR
REG
MB MA MA
VB VA
P2(BW) P1(FW)
P
DR
(2)
Pb1
SWING T ARM BUCKET
P
(1) (3) (2) (4)
SH
A c B e1 D E PS
Pc3
d1
a d
PS b e
e2
PS
Pd2 Pc2
Pd40 Pd41
Pb3 Pc40 Pc41 Pc42
When the travel speed solenoid valve was placed in the Hi position, the pressure oil from pilot pump
through line filter flows to port Ps of travel speed change over valve, and the control piston is pushed
up, thus minimizing the displacement.
When the travel speed solenoid valve was placed in the Lo position, the oil of Ps port return to the
tank and the control piston is returned, thus maximizing the displacement.
RH
Ps
REG
MB
C6
D6
VA
VB Pc6
P1(BW) P2(FW)
Pd6
TURNING
JOINT
Puo
C5
D5
Pc5
Pd5
DR5
Po5
C4
D4
DR3
Pc41
Pc40
Pd40
V3
Pc3
DR2
Pa21
C2
D2
Pc2
Pd2
DR4
P03
C1
D1
Pc1
Pd1
TRAVEL
P T
DR0
P0
PS
(1) (4) (3)
Pa1 Pd1 Pc1
BOOM
P T
P1
Dr4
T1
(3) (1) (2) (4)
Po5
J
F G H PS
P03
h1 h2
(MCV)
g
h j
f
Pa5 Pb5
Pb20 Pb21
T
P04 Pa20 Pa21
OPTION C
(DOZER)
OPTION B
ARM 1
BOOM 2
SWING
TRAVEL
RIGHT
TRAVEL
STRAIGHT
Ai
Pd0 P3 P2 P1
PG(S/Motor)
P0(MCV)
P2 P3 P4
P02(MCV)
P5
T5
T2 T3 T4
Pa4
Dr3
Dr5
Pb4 P Pu
(MCV) (T/Joint) (MCV)
A1
A4 A3 A2 A1
P3
P2
P1
TRAVEL SPEED
SOLENOID VALVE
3-9
Pi1(Pump)
Rs
Pn2
BUCKET
ARM
REGEN
ARM 2
BOOM 1
Dr#, dr#
P(F/CNTL
EPPR)
Pi2(Pump)
Pn1
B5
A5
Pb5
Pa5
P04
B4
Pb4
Pa4
Pc42
Pb3
Pd41
B2
A2
Pb21
DR1
Pb20
Pa20
P02
PS
Patt
B1
A1
Pb1
Pa1
TRAVEL
LEFT
T1
130ZF3HC05