PDF Service Manual Hyundai Robex 130 Hydraulic Excavator (India) - 3 MB
This is the 2023 service manual for the Hyundai Robex 130 hydraulic excavator model specific to the Indian market.
It provides comprehensive instructions for maintenance, troubleshooting, and major repairs.
With detailed information on the hydraulic and electrical systems, this manual is essential for technicians to keep the excavator performing at its best.
Ensure your equipment is serviced correctly with this factory guide.
PDF Viewer
Viewer loads when you scroll here
SHARE THIS MANUAL
Download the PDF Manual
PDF viewer loading area
Text Preview from This Manual
The text below was extracted from the visible preview pages to help you confirm the manual contents before download.
--- Page 3 ---
TEMPERATURE
Fahrenheit-Centigrade Conversion.
A simple way to convert a fahrenheit temperature reading into a centigrade temperature reading or vice
verse is to enter the accompanying table in the center or boldface column of figures.
These figures refer to the temperature in either Fahrenheit or Centigrade degrees.
If it is desired to convert from Fahrenheit to Centigrade degrees, consider the center column as a table of
Fahrenheit temperatures and read the corresponding Centigrade temperature in the column at the left.
If it is desired to convert from Centigrade to Fahrenheit degrees, consider the center column as a table
of Centigrade values, and read the corresponding Fahrenheit temperature on the right.
C F C F C F C F
-40.4 -40 -40.0 -11.7 11 51.8 7.8 46 114.8 27.2 81 117.8
-37.2 -35 -31.0 -11.1 12 53.6 8.3 47 116.6 27.8 82 179.6
-34.4 -30 -22.0 -10.6 13 55.4 8.9 48 118.4 28.3 83 181.4
-31.7 -25 -13.0 -10.0 14 57.2 9.4 49 120.2 28.9 84 183.2
-28.9 -20 -4.0 -9.4 15 59.0 10.0 50 122.0 29.4 85 185.0
-28.3 -19 -2.2 -8.9 16 60.8 10.6 51 123.8 30.0 86 186.8
-27.8 -18 -0.4 -8.3 17 62.6 11.1 52 125.6 30.6 87 188.6
-27.2 -17 1.4 -7.8 18 64.4 11.7 53 127.4 31.1 88 190.4
-26.7 -16 3.2 -6.7 20 68.0 12.8 55 131.0 32.2 90 194.0
-26.1 -15 5.0 -6.7 20 68.0 12.8 55 131.0 32.2 90 194.0
-25.6 -14 6.8 -6.1 21 69.8 13.3 56 132.8 32.8 91 195.8
-25.0 -13 8.6 -5.6 22 71.6 13.9 57 134.6 33.3 92 197.6
-24.4 -12 10.4 -5.0 23 73.4 14.4 58 136.4 33.9 93 199.4
-23.9 -11 12.2 -4.4 24 75.2 15.0 59 138.2 34.4 94 201.2
-23.3 -10 14.0 -3.9 25 77.0 15.6 60 140.0 35.0 95 203.0
-22.8 -9 15.8 -3.3 26 78.8 16.1 61 141.8 35.6 96 204.8
-22.2 -8 17.6 -2.8 27 80.6 16.7 62 143.6 36.1 97 206.6
-21.7 -7 19.4 -2.2 28 82.4 17.2 63 145.4 36.7 98 208.4
-21.1 -6 21.2 -1.7 29 84.2 17.8 64 147.2 37.2 99 210.2
-20.6 -5 23.0 -1.1 35 95.0 21.1 70 158.0 51.7 125 257.0
-20.0 -4 24.8 -0.6 31 87.8 18.9 66 150.8 40.6 105 221.0
-19.4 -3 26.6 0 32 89.6 19.4 67 152.6 43.3 110 230.0
-18.9 -2 28.4 0.6 33 91.4 20.0 68 154.4 46.1 115 239.0
-18.3 -1 30.2 1.1 34 93.2 20.6 69 156.2 48.9 120 248.0
-17.8 0 32.0 1.7 35 95.0 21.1 70 158.0 51.7 125 257.0
-17.2 1 33.8 2.2 36 96.8 21.7 71 159.8 54.4 130 266.0
-16.7 2 35.6 2.8 37 98.6 22.2 72 161.6 57.2 135 275.0
-16.1 3 37.4 3.3 38 100.4 22.8 73 163.4 60.0 140 284.0
-15.6 4 39.2 3.9 39 102.2 23.3 74 165.2 62.7 145 293.0
-15.0 5 41.0 4.4 40 104.0 23.9 75 167.0 65.6 150 302.0
-14.4 6 42.8 5.0 41 105.8 24.4 76 168.8 68.3 155 311.0
-13.9 7 44.6 5.6 42 107.6 25.0 77 170.6 71.1 160 320.0
-13.3 8 46.4 6.1 43 109.4 25.6 78 172.4 73.9 165 329.0
-12.8 9 48.2 6.7 44 111.2 26.1 79 174.2 76.7 170 338.0
-12.2 10 50.0 7.2 45 113.0 26.7 80 176.0 79.4 172 347.0
0-8
--- Page 4 ---
SPECIFICATIONS
Tool box Fuel tank Hydraulic tank Main pump
Engine
Radiator
Oil cooler
Bucket Main control valve
Tooth Turning joint Swing motor
Arm Arm cylinder Boom Boom cylinder Cab Muffler Counterweight
R130
Side cutter Idler Track
Connecting link roller Travel motor
Bucket cylinder Connecting rod Carrier roller Track Sprocket
D11072SP01
1-9
--- Page 5 ---
7. UNDERCARRIAGE
1) TRACKS
X-leg type center frame is integrally welded with reinforced box-section track frames. The design
includes dry tracks, lubricated rollers, idlers, sprockets, hydraulic track adjusters with shock
absorbing springs and assembled track-type tractor shoes with triple grousers.
2) TYPES OF SHOES
Triple grouser
Model Shapes
Shoe width mm(in) 500(20) 600(24) 700(28)
Operating weight kg(lb) 11200(24690) 11500(25350) 11800(26010)
R130
Ground pressure kgf/cm2(psi) 0.39(5.55) 0.34(4.84) 0.30(4.27)
Overall width mm(ft-in) 2490(8' 2") 2590(8' 6") 2690(8'10")
Shoe width mm(ft-in) 500(20) 600(24) 700(28)
Overall width mm(ft-in) 11900(26230) 12200(26900) 12500(27560)
R130
Overall width mm(ft-in) 0.42(5.97) 0.36(5.12) 0.31(4.41)
Overall width mm(ft-in) 2500(8' 2") 2590(8' 6") 2690(8'10")
3) NUMBER OF ROLLERS AND SHOES ON EACH SIDE
Item Quantity
Carrier rollers 1EA
Track rollers 6EA
Track shoes 41EA
1-19
--- Page 6 ---
REGULATOR(2/2)
734 653 654 836 651 652 601 624 629 630 628
655
641 801
C
814 925
898
631 627
732
733
732
622
621 623 625 626 887 763 756
140LC-7
SECTION A-A
405 Hexagon socket screw 629 Cover(C) 730 O-ring
412 Hexagon socket screw 630 Lock nut 732 O-ring
413 Hexagon socket screw 631 Sleeve, pf 733 O-ring
436 Hexagon socket screw 641 Pilot cover 734 O-ring
438 Hexagon socket screw 643 Pilot piston 735 O-ring
466 Plug 644 Spring seat(Q) 753 O-ring
496 Plug 645 Adjust stem(Q) 755 O-ring
601 Casing 646 Pilot spring 756 O-ring
611 Feed back lever 651 Sleeve 763 O-ring
612 Lever(1) 652 Spool 801 Nut
613 Lever(2) 653 Spring seat 814 Snap ring
614 Fulcrum plug 654 Return spring 836 Snap ring
615 Adjust plug 655 Set spring 858 Snap ring
621 Compensator piston 656 Block cover 874 Pin
622 Piston case 699 Valve casing 875 Pin
623 Compensator rod 708 O-ring 887 Pin
624 Spring seat(C) 722 O-ring 897 Pin
625 Outer spring 724 O-ring 898 Pin
626 Inner spring 725 O-ring 924 Set screw
627 Adjust stem(C) 728 O-ring 925 Adjust screw(QI)
628 Adjust screw(C)
2-4
--- Page 7 ---
Flow reset function
621 651 652 623 612 601 625 626
P1 CL
B(E)
897
F
P2 P1
875
Large diameter Small diameter
chamber Servo piston D chamber
140LC-7 2-15
As the self pump delivery pressure P1 or the companion pump delivery pressure P2 decreases,
the compensating rod(623) is pushed back by the action of the springs(625 & 626) to rotate lever
1(612) around point E. Rotating of lever 1 causes the feedback lever(611) to rotate around the
fulcrum of point D and then the spool(652) to move to the left. As a result, port CL opens a way
to the tank port.
This causes the servo piston to move to the left and the pump's delivery rate to increase.
The movement of the servo piston is transmitted to the spool by the action of the feedback
mechanism to move it till the opening between the spool and sleeve is closed.
2-14
--- Page 8 ---
2) EACH SPOOL OPERATION
(1) TRAVEL OPERATION
Travel forward operation
14072SF17
Travel backward operation
14072SF18
During the travel operation, the hydraulic fluid of the pump P1 is supplied to the travel motor and the
hydraulic fluid of the pump P2 is supplied to the other travel motor.
The pilot pressure from the pilot control valve is supplied to the spring side of pilot port (pa1, pd1).
And it shifts travel right and left spools in the left direction against springs. Hydraulic fluid from the
pump P1 flow into the travel left spool through the bypass passage and hydraulic fluid from the pump
P2 flow into the travel right spool through the bypass passage.
Then they are directed to the each travel motor through port A1 and D1. As a result, the travel motors
turn and hydraulic fluid returns to the tank passage through the travel spools.
In case of the opposite operation, the operation is similar.
2-24
--- Page 9 ---
(7) SWING PRIORITY FUNCTION
14072SF27
During swing priority operation, the pilot pressure is supplied to the port Pc3 and shift swing priority
spool in the right direction.
The hydraulic fluid from P2 parallel passage flows into the parallel passage of arm1 side through swing
priority spool and the passage "A" and also flows into the boom2 spool.
Due to shifting of the swing priority spool, the fluid from pump P2 flows to swing side more then next
spools to make the swing operation most preferential.
2-34
--- Page 10 ---
2) REDUCTION GEAR
2 26 27 28 17 1 22 20 21 18 25 8 12 4 10 23 3 19
6
12
11
29
24
7
5
13
9
16
11072SM03
1 Casing 10 Pin No.2 assembly 21 Plug(B)
2 Drive shaft 11 Pin No.1 22 Plug(A)
3 Ring gear 12 Thrust washer(B) 23 Spring pin
4 Planet gear No.2 13 Thrust washer(A) 24 Stop ring
5 Sun gear No.2 16 Knock pin 25 Stop ring
6 Planet gear No.1 17 Sph roller bearing 26 Spacer
7 Sun gear No.1 18 Cyl roller bearing 27 Cover plate
8 Carrier No.2 19 Bolt 28 Bolt
9 Carrier No.1 20 Oil seal 29 Needle cage
2-44
--- Page 11 ---
GROUP 4 TRAVEL DEVICE
1. CONSTRUCTION
Travel device consists travel motor and gear box.
Travel motor includes brake valve, parking brake and high/low speed changeover mechanism.
2 speed control port(PP3) Oil fill port(PF 1/2)
M2
M1
Oil level
Pressure gauge port(M1, M2) Drain port(PF 1/2)
T2 P2 P1 T1
R/G
Port Port name Port size
PP3
T1,T2 P1 Main port SAE 5000psi 1"
P2 Main port SAE 5000psi 1"
M1, M2 Gauge port PT 1/4
T1, T2 Drain port PF 1/2
PP3 2 speed control port PF 1/4
M1 M2
P1 P2
11072TM01
2-54
--- Page 12 ---
(3) Automatic 2-speed shifting function
Spool #2 PP3
for auto shifting "PP3"
(Independent from Inlet
Pilot
pilot fluctuation) ON/OFF R/G
Load pressure
PP3
Spool #1
for switching modes: M1 M2
Auto shifting mode
Low fixed mode Cam
(1) Speed P1 P2
shifting piston
(Light load) Selector valve
Load pressure
For speed
shifting piston Speed
shifting
piston
PP3
(2)-1 T
Steel ball
(Heavy load) Open
Seating
Load pressure
Stop
M2
P1 P2
(2)-2
11072TM11
Automatic 2-speed shifting function has two modes (1) and (2) as below :
(1) Low speed fixed mode... always low speed
(2) Automatic 2-speed shifting mode
(2)-1 When motor load pressure is light, High speed.
(2)-2 When motor load pressure is heavy, Low speed.
This function above consists of three components.
Spool #1 for switching modes
Auto-shifting mode(if PP3 is applied)
Low-speed-fixed mode (if PP3 is NOT applied)
Spool #2 for auto shifting
If load pressure < set value then High-speed
If load pressure > set value then Low-speed
Selector valve, which always picks out high pressure and provide it to the SPOOL #2 regardless
of the rotating direction of motor.
2-64
--- Page 13 ---
(2) Case where handle is tilted
15
5
T
P
1 3
25032RL04
When the push rod(14) is stroked, the spool(5) moves downwards.
Then port P is connected with port(1) and the oil supplied from the pilot pump flows through
port(1) to generate the pressure.
When the pressure at port(1) increases to the value corresponding to the spring force set by tilting
the handle, the hydraulic pressure force balances with the spring force. If the pressure at port(1)
increases higher than the set pressure, port P is disconnected from port(1) and port T is
connected with port(1). If it decreases lower than the set pressure, port P is connected with
port(1) and port T is disconnected from port 1.
In this manner the secondary pressure is kept at the constant value.
Besides, in some type, when the handle is tilted more than a certain angle, the upper end of the
spool contacts with the inside bottom of the push rod and the output pressure is left to be
connected with port P.
2-74
--- Page 14 ---
2. RETURN CIRCUIT
Full flow filter Oil cooler Check valve(2)
1.5kgf/cm2
Main control valve Actuators
Check valve(1)
3.0kgf/cm2
Bypass relief valve
1.5kgf/cm2
140LC-7 3-03
All oil returned from each actuator returns to the hydraulic tank through the control valve.
The bypass check valves are provided in the return circuit.
The setting pressure of bypass check valves are 1.5kgf/cm2(21psi) and 3.0kgf/cm2(43psi). Usually, oil
returns to the hydraulic tank from the left side of control valve through oil cooler.
When oil temperature is low, viscosity becomes higher and flow resistance increases when passing
through the oil cooler. When the oil pressure exceeds 3.0kgf/cm2(43psi), the oil returns directly to the
hydraulic tank, resulting in the oil temperature being raised quickly at an appropriate level.
When the oil cooler is clogged, the oil returns directly to the hydraulic tank through bypass check valve(1).
The full-flow filter and bypass relief valve are provided in the hydraulic tank.
The oil returned from right and left side of control valve is combined and filtered by the full-flow filter. A
bypass relief valve is provided in the full-flow filter.
When the filter element is clogged, the bypass relief valve opens at 1.5kgf/cm2(21psi) differential pressure.
3-3
--- Page 15 ---
2. BOOM DOWN OPERATION
DOZER ARM BUCKET BOOM
CYLINDER CYLINDER CYLINDER CYLINDER
TRAVEL MOTOR
Pn2 Pn1
C6
D6
Pc6
Pd6
OPTION
B5
C5 A5
D5 Pb5
Pc5
Pd5 Pa5
OPTION BUCKET
C4
D4 DR3 B4
Pc41 Pb4
Pc40
Pd40 Pa4
ARM 1
Pc42
SWING MOTOR ARM
V3 REGENERATION
Pc3 Pb3
Pa21 DR2
Pd41
BOOM 2 ARM 2
B2
C2
Pb21 A2
D2
DR1
Pc2 Pb20
Pd2 Pa20
SWING BOOM 1
C1 B1
D1 Pc1 Pb1 A1
Pd1 Pa1
TRAVEL(RH) TRAVEL(LH)
P0
T1
Pz
HYDRAULIC TANK
FRONT REAR PILOT
PUMP PUMP PUMP
11073HC11
When the right control lever is pushed forward, the boom spools in the main control valve are moved
to the down position by the pilot oil pressure from the remote control valve.
The oil from the front pump flows into the main control valve and then goes to the small chamber of
boom cylinders. At the same time, the oil from the large chamber of boom cylinders returns to the
hydraulic tank through the boom spool in the main control valve.
When the down speed of boom is faster, the oil returned from the large chamber of boom cylinder
combines with the oil from the front pump, and flows into the small chamber of the cylinder.
This prevents cylinder cavitation by the negative pressure when the front pump flow can not match the
boom down speed. And the excessive pressure in the boom cylinder rod end circuit is prevented by
the relief valve.
3 - 13
--- Page 16 ---
10. DOZER DOWN OPERATION
DOZER ARM BUCKET BOOM
CYLINDER CYLINDER CYLINDER CYLINDER
TRAVEL MOTOR
Pn2 Pn1
C6
D6
Pc6
Pd6
OPTION
B5
C5 A5
D5 Pc5 Pb5
Pd5 Pa5
DOZER BUCKET
C4
D4 DR3 B4
Pc41 Pb4
Pc40
Pd40 Pa4
ARM 1
Pc42
ARM
SWING MOTOR V3 REGENERATION
Pc3 Pb3
Pa21 DR2
Pd41
BOOM 2 ARM 2
B2
C2
Pb21 A2
D2
DR1
Pc2 Pb20
Pd2 Pa20
SWING BOOM 1
C1 B1
D1 Pc1 Pb1 A1
Pd1 Pa1
TRAVEL(RH) TRAVEL(LH)
P0
T1
Pz
HYDRAULIC TANK
FRONT REAR PILOT
PUMP PUMP PUMP
11073HC19
When the dozer control lever is pushed forward, the dozer spool in the main control valve is moved to
the dozer down position by the pilot oil pressure from the remote control valve.
The oil from the rear pump flows into the main control valve and then goes to the large chamber of
dozer cylinders.
At the same time, the oil from the small chamber of dozer cylinders returns to the hydraulic oil tank
through the dozer spool in the main control valve. When this happens, the dozer blade is down.
3 - 23
--- Page 17 ---
SECTION 4 ELECTRICAL SYSTEM
Group 1 Component Location - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Group 2 Electrical Circuit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
Group 3 Electrical Component Specification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-23
Group 4 Connectors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-35
--- Page 18 ---
4. HEAD LAMP CIRCUIT
1) OPERATING FLOW
Fuse box (No.14) I/conn CN-5(15) Light switch[CS-21(1)]
When lamp switch ON
Light switch[CS-21(7)] I/conn[CN-6(12)]
I/conn [CN-10(2)] Cassette radio illumination [CN-27(7)]
I/conn [CN-11(8)] AC & Heater controller illumination
Head lamp [CL-4(2)] : Head lamp ON
I/conn[CN-6(8)] Cigarlight [CL-2]
Light switch[CS-21(5)] Cigarlight[CL-2]
2) CHECK POINT
Engine Key switch Check point Voltage
- GND (Fuse box)
STOP ON - GND (Switch power input) 20~25V
- GND (Switch power output)
GND : Ground
4-10
--- Page 19 ---
3
6