![background image](http://html1.mh-extra.com/html/hyundai/hx130-lcr/hx130-lcr_manual_2196326154.webp)
3-22
When the left control lever is pushed left or right, the swing spool in the main control valve is moved
to the left or right swing position by the pilot oil pressure from the remote control valve.
Also the swing operation preference function is operated by the pilot pressure Pc3 (refer to page
3-13).
The oil from the A1 pump flows into the main control valve and then goes to the swing motor.
At the same time, the return oil from the swing motor returns to the hydraulic oil tank through the
swing spool in the main control valve.
When this happens, the upper structure swings to the left or right.
The swing parking brake, make up valve and the motor brake valve are provided in the swing motor.
The cavitation which will happen to the swing motor is also prevented by the make up valve in the
swing motor itself.
9. SWING OPERATION
RIGHT
LEFT
TRAVEL
STRAIGHT
TRAVEL
TRAVEL
BOOM 1
SWING
BOOM 2
ARM 1
OPTION B
OPTION C
(DOZER)
ARM
BUCKET
ARM 2
REGEN
Pu
P1
P2
P3
Pd0
Pc42
Pb3
Pd41
B2
A2
Pb1
A1
B1
Pa1
T1
V3
Pd2
Pc2
D2
C2
Pc1
D1
C1
P0
DR0
Pd1
Ai
B4
B5
A5
Pa5
Pb5
Pa4
Pb4
C5
D5
D4
C4
Pc41
Pc5
Pd5
Rs
C6
Pd6
Pc6
D6
DR4
P03
Patt
P02
Pn2
Pn1
Po5
Puo
P04
DR2
Pc3
Pa21
Pb21
Pb20
Pa20
DR1
DR5
DR3
Pc40
Pd40
PS
PS
Pi1(Pump)
Dr#, dr#
Pi2(Pump)
(3)
(1)
(2)
(4)
(3)
(1)
P
T
P
T
(2)
(4)
a
b
d
f
h
j
c
d1
B e1 D
A
E
F
G
H
J
g
e
e2
SWING
ARM
BUCKET
BOOM
PS
PS
PS
PS
h1
h2
Pd40 Pd41
Pc2
Pd2
SH
Pc3
(3)
(4)
(1)
(2)
P
T
TRAVEL
Pc1
Pd1
Pa1
Pb1
Pb5
Pa5
Pb3
Pc40
Pc41
Pc42
P04
Pa20 Pa21
Pb20 Pb21
ARM
CYLINDER
BUCKET
CYLINDER
BOOM
CYLINDER
TURNING
JOINT
TRAVEL MOTOR
SH
Mu
VA(CW)
VB(CCW)
DR
MA
MB
AU
PG
REG
SPRING 4k
SWING MOTOR
P1
A3
A2
A1
A1
T5
T4
T3
T2
T1
P5
P1
P4
P3
P2
A4
P3
P2
(MCV)
P03
(MCV)
Pb4
(MCV)
Pu
(T/Joint)
P
Dr4
Dr3
Po5
Pa4
P1(T/S SOL)
P(F/CNTL
EPPR)
PG(S/Motor)
P02(MCV)
P0(MCV)
T
HYDRAULIC TANK
PILOT
PUMP
A1
PUMP
A2
PUMP
130ZF3HC18
Summary of Contents for HX130 LCR
Page 11: ...1 1 SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10 ...
Page 174: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV ...
Page 536: ...8 108 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29 ...
Page 566: ...8 138 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10 ...