Hyundai HX145LCR Manual page 174

8. SWING PRIORITY SYSTEM
(2)
Pb1
SWING P T ARM
(1) (3) (2) (4)
SH
E
A c B e1 D
d1
Pc3
a
PS b d
e
PS
Pc2
Pd2
Pd40 Pd41
Pb3 Pc40 Pc41 Pc42
When carrying out the combined operation of swing and arm of the left control valve, the swing
speed can be lowered than operating speed of arm.
Pc3 pressure from the swing shuttle block change the swing priority spool and decreases the oil flow
rate to the next section to make the swing operation most preferential.
This is called the swing priority system. For details, refer to page 2-39.
TURNING
JOINT
P T TRAVEL
(1) (4) (3)
Pa1 Pd1 Pc1
BUCKET T BOOM
P
Dr4
(3) (2)
(1) (4)
PS PS J
F G H
h1 h2
g h j
e2 f
Pb5
Pa5
Pb20 Pb21
T
P04 Pa20 Pa21
C6
D6
Pc6
OPTION C
Pd6
(DOZER)
Puo
C5
D5
Pc5
OPTION B
Pd5
DR5
Po5
C4
D4
DR3
Pc41
Pc40
Pd40
ARM 1
V3
Pc3
DR2
Pa21
BOOM 2
C2
D2
Pc2
Pd2
SWING
DR4
P03
C1
D1
Pc1
Pd1
TRAVEL
RIGHT
DR0
P0
TRAVEL
PS
Ai STRAIGHT
Pd0
P3 P1
PG(S/Motor)
P0(MCV)
P2 P3 P4
P02(MCV)
P1
P5
T5
T1
T2 T3 T4
Dr3 Pa4
Po5
P03 Pb4 P Pu
(MCV) (MCV) (T/Joint) (MCV)
A1
A4 A3 A2 A1
3-13
Pi1(Pump)
Rs
Pn2
P2
Dr#, dr#
P(F/CNTL
EPPR)
P3
P1(T/S SOL)
P2
P1
Pi2(Pump)
Pn1
B5
A5
Pb5
Pa5
BUCKET
P04
B4
Pb4
Pa4
ARM
Pc42
REGEN
Pb3
ARM 2
Pd41
B2
A2
Pb21
DR1
Pb20
Pa20
BOOM 1
P02
PS
Patt
B1
A1
Pb1
Pa1
TRAVEL
LEFT
T1
145ZF3HC09