Hyundai HX145LCR Manual page 186

10. TRAVEL FORWARD AND REVERSE OPERATION
LH
T*
Ps
DR
REG
MB MA
VB VA
P2(BW) P1(FW)
P
DR
(2)
Pb1
SWING ARM
P T
(1) (3) (2) (4)
SH
PS
A c B e1 D E
Pc3 d1
a d
PS b
e e2
PS
Pd2 Pc2
Pd40 Pd41
Pb3 Pc40 Pc41 Pc42
When the travel levers are pushed forward or reverse position, the travel spools in the main control
valve are moved to the forward or reverse travel position by the pilot oil pressure from the remote
control valve.
The oil from the each pump flows into the main control valve and then goes to the each travel motor
through the turning joint.
The return oil from both travel motors returns to the hydraulic oil tank through the turning joint and
the travel spools in the main control valve.
When this happens, the machine moves to the forward or reverse.
RH
Ps
DR
REG
MA MB
VA VB
P2(FW)
P1(BW)
TURNING
JOINT
Puo
DR5
Po5
C4
D4
DR3
Pc41
Pc40
Pd40
DR2
Pa21
C2
D2
Pd2
DR4
C1
D1
T TRAVEL
P
DR0
(1) (4) (3)
Pa1 Pd1 Pc1
BUCKET P T BOOM
P1
Dr4
T1
(3)
(1) (2) (4)
Dr3
PS J
F G H
P03
h2
h1
(MCV)
g
h j
f
Pa5 Pb5
Pb20 Pb21
T
P04 Pa20 Pa21
C6
D6
Pc6
OPTION C
Pd6
(DOZER)
C5
D5
Pc5
OPTION B
Pd5
ARM 1
V3
Pc3
BOOM 2
Pc2
SWING
P03
Pc1
Pd1
TRAVEL
RIGHT
P0
TRAVEL
PS
Ai STRAIGHT
Pd0
P3 P1
PG(S/Motor)
P0(MCV)
P2 P3 P4
P02(MCV)
P5
T5
T2 T3 T4
Pa4
Po5
Pb4 P Pu
(MCV) (T/Joint) (MCV)
A1
A4 A3 A2 A1
P3
P2
P1
3-25
Pi1(Pump)
Rs
Pn2
BUCKET
ARM
REGEN
ARM 2
BOOM 1
P2
Dr#, dr#
P(F/CNTL
EPPR)
P1(T/S SOL)
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
145ZF3HC19