Hyundai Excavator R210LC-7. Service and repair manual - page 16

4 - 63

BEACON LAMP AND CAB LIGHT CIRCUIT (#1001 and up, TIER II)

21074EL55

4 - 64

6. WIPER AND WASHER CIRCUIT (#1001 and up, TIER II)

OPERATING FLOW

Key switch ON

Fuse box (No.11)         I/conn  CN-7(5)

Switch panel  CN-116(6)

Fuse box (No.4)        I/conn  CN-5(4)

I/conn  CN-17(5)

Wiper motor controller  CN-141(7)
Wiper motor  CN-21(4)

Fuse box (No.13)

I/conn  CN-6(5)

l/conn  CN-17(4)

Wiper motor controller  CN-141(6)

Washer pump  CN-22(2)

Wiper switch ON : 1st step

(Intermittent)

Wiper switch ON  CN-116(15)

I/conn CN-9(4)

I/conn CN-6(10)

I/conn CN-17(8)

Wiper motor controller  CN-141(10) 

(3)

Wiper motor intermittently operating  CN-21(6)

Wiper switch ON : 2nd step

(Low speed)

Wiper switch ON  CN-116(4)

I/conn  CN-7(3)

I/conn  CN-6(9)

I/conn CN-17(2)

Wiper motor controller  CN-141(2) 

(4)

Wiper motor operating  CN-21(2)

Washer switch ON 

Washer switch ON  CN-116(12)

I/conn  CN-7(9)

I/conn  CN-5(1)

I/conn  CN-17(7)

Wiper motor controller  CN-141(9) 

(8)

I/conn  CN-17(6)

I/conn  CN-6(11)

Washer pump  CN-22(1)

Washer operating

Fuse box(No.13)        I/conn  CN-6(5)

I/conn  CN-17(4)

Wiper motor controller  CN-141(6) 

(4)

Wiper motor operating  CN-21(2), Low speed

Auto parking

(When switch OFF)

Switch OFF  CN-116(15)

Wiper motor parking position by wiper motor controller

CHECK POINT   

1)

(1)

(2)

(3)

(4)

(5)

GND : Ground

2)

Engine

Start switch

Check point

Voltage

STOP

ON

- GND(Fuse box)

- GND(Switch power input)

- GND(Switch power output)

-  GND(Wiper Power input)

- GND(Wiper power output)

- GND(Wiper motor)

0 ~ 5V

24V

0 or 24V

4 - 65

WIPER AND WASHER CIRCUIT (#1001 and up, TIER II)

21074EL56

4 - 66

CONTROLLER CIRCUIT (#1001 and up, TIER II)

21074EL57

4 - 67

MONTORING CIRCUIT (#1001 and up, TIER II)

21074EL58

4-

6

8

ELECTRIC CIRCUIT FOR HYDRAULIC(#1001 and up, TIER II)

21074EL59

4 - 69

7. CONNECTOR DESTINATION

Connector

number

Type

Destination

Connector part No.

Female

Male

No. of

pin

CN-1

CN-2

CN-3

CN-4

CN-5

CN-6

CN-7

CN-8

CN-9

CN-10

CN-11

CN-17

CN-92

CN-95

Switch

CS-26A

Econoseal J

Econoseal J

Econoseal J

Econoseal J

Econoseal J

Econoseal J

Econoseal J

Econoseal J

Econoseal J

DEUTSCH

DEUTSCH

DEUTSCH

SWP

KET

Econoseal J

6

12

8

8

15

12

15

12

8

12

8

8

1

2

2

I/conn(Pump ps harness-Frame harness)

I/conn(Engine harness 2-Frame harness)

I/conn(Engine harness 1-Frame harness)

I/conn(Console harness LH-Frame harness)

I/conn(Side harness RH-Frame harness)

I/conn(Side harness RH-Frame harness)

I/conn(Console harness RH-Frame harness)

I/conn(Console harness RH-Frame harness)

I/conn(Console harness RH-Frame harness)

I/conn(Cab harness-Frame harness)

I/conn(Air-con harness-Frame harness)

I/conn 

(Side harness RH-Wiper motor harness)

Emergency engine starting connector

Fusible link

Breaker pedal

S816-006002

2-85262-1

S816-008002

S816-008002

2-85262-1

S816-012002

2-85262-1

S816-012002

S816-008002

DT06-12S

DT06-8S

DT06-8S

S814-001001

S813-030201

S816-002002

S816-106002

368301-1

S816-108002

S816-108002

368301-1

S816-112002

368301-1

S816-112002

S816-108002

DT04-12P

DT04-8P

DT04-8P

S814-101001

S813-130200

S816-102002

5 - 15

1.  CPU CONTROLLER MOUNTING

GROUP  10  ENGINE CONTROL SYSTEM

2.  CPU CONTROLLER ASSEMBLY

Remove four pieces of bolt(3) of electric box(2).

Disconnect 2 connectors from CPU controller.

Remove 6 pieces of screw and open the cover of CPU controller.

Inspection : Check PCB(Printed Circuit Board)

If any damage is found, replace CPU controller assembly.

If not, but CAPO system does not work please report it to HHI dealer or A/S department.

1)

2)

3)

4)

(1)

(2)

1

CPU controller

2

Electric box

3

Bolt(M8)

21075MS11A

5 - 16

3.  EXCHANGE METHOD OF THE ROM

Disassemble the ash tray(2).

Disassemble the wiper motor cover(3).

Disassemble the cluster(1).

1)

2)

3)

Loosen the screws(6EA) located back of
the cluster.

Then you can open the upper case of the
cluster easily.

4)

5)

Install the new ROM.(Be careful of direction
and assmelbe the cluster in the reverse
order to removal).

6)

21075MS12

21075MS13

21075MS14

5 - 17

4.  ENGINE ACCEL ACTUATOR

ENGINE THROTTLE LEVER

EMERGENCY CABLE

(Push-pull cable)

It controls engine speed by connecting onto the lever of the injection pump when the malfunction of
the CPU controller or the accel actuator happen.

1)

2)

1

Accel actuator

2

Push-pull cable for manual control

Accel actuator

Throttle lever

SL

SH

SL : Stopper, low idle
SH : Stopper, high idle

21075MS60

(210-7) 5-18(2)

5 - 18

ACCEL ACTUATOR

3)

Connector

Type

Line color
& description

Inspection

6P, female

White(Potentiometer 5V)

Blue(Potentiometer SIG)

Black(Potentiometer GND)

-

Green(Motor+)

Yellow(Motor -)

Check resistance
Spec : 1~2

(Between No.5-6)

0.8~1.2k (Between No.1-3)

1

2

3

4

5

1

DC motor

2

Cable

3

Nut

4

Ball joint

5

Connector

1
2
3

6
5
4

1

2

3

4

5

6

(210-7) 5-19(1)

5 - 19

ACCEL ACTUATOR CABLE SETTING PROCEDURE

Key OFF

Connect the ball joint of cable to engine throttle lever.
Pull the cable to high stopper and put nut 

A

edge to yoke of the bracket.

Make throttle lever not contact to the edge of high stopper.
Turn nut 

A

to clockwise until touching to the edge of high stopper.

Make 1 turn more to clockwise in condition of the nut 

A

contact to the edge of high stopper.

Key START

Confirm if the engine speed on cluster is same as each mode specification.
If the engine speed displayed on cluster is highter than each mode specification, then turn the nut

A

to counter clockwise and make the engine speed same to each mode specification.

If the engine speed displayed on cluster is lower than each mode specification, then turn the nut

A

to clockwise and make the engine speed same to each mode specification.

Turn nut 

B

to clockwise and fix the cable to bracket.

4)

(1)

(2)

Nut A

Nut B

Ball joint

Throttle lever

Cable

Bracket

Hi

Lo

Mode

H

S

Auto decel

Key start

2250 50

*2150 50

2150 50

*2050 50

1200 100

950 100

*1050 100

RPM

130W5MS05

* : Tier II Only

5 - 20

5.  ENGINE SPEED SENSOR

DETECT ACTUAL ENGINE RPM AND SEND SIGNAL TO TACHOMETER

INSTALLATION

Clean contacting point of sensor.

Loosen lock nut.

Screw speed sensor into flywheel housing.

Turn it back 135 when it contacts with gear teeth.

Tight lock nut and connect wiring.

INSPECTION

Check resistance

SPEC : 300 30 

Check voltage while engine run.

SPEC : 2~28Vac, dependent on the engine speed(rpm)

1)

2)

3)

(1)

(2)

(3)

(4)

(5)

(1)

(2)

Flywheel housing

3

2

A

2

Gear teeth, flywheel

3

Lock nut, speed sensor

A

Clearance

5-20  (210-7)

5 - 21

6.  CPU CONTROLLER

To match the engine torque with the pump absorption torque, CPU
controller varies EPPR valve output pressure, which control pump
discharge amount whenever feedbacked engine speed drops under
the reference rpm of each mode set.

Three LED lamps on the CPU controller display as below.

MODEL:ROBEX 200W

-3

PAR

T NO:21ER-321

10

LED

R

Y

G

(1)

(2)

LED lamp

G is turned ON

G and R are
turned ON

G and Y are
turned ON

Three LED are
turned OFF

Trouble

Normal

Trouble on CPU or ROM

Trouble on serial
communication line

Trouble on CPU
controller power

-

Change the controller

Check if serial communication
lines between controller and
cluster are disconnected

Check if the input power wire
(24V, GND) of controller is
disconnected

Check the fuse

Service

20W03CD18

G : green,          R : red,          Y : yellow

5 - 22

GROUP  11 EPPR VALVE

1.  COMPOSITION OF EPPR VALVE

EPPR(Electro Proportional Pressure Reducing) valve consists of electro magnet and spool valve
installed at main hydraulic pump. 

ELECTRO MAGNET VALVE

Receive electric current from CPU controller and move the spool proportionally according to the
specific amount of electric current value.

SPOOL VALVE

Is the two way direction control valve for pilot pressure to reduce hydraulic pump flow.
When the electro magnet valve is activated, pilot pressure enters into flow regulator of hydraulic pump.
So, pump flow decreases to prevent engine stall.

PRESSURE AND ELECTRIC CURRENT VALUE FOR EACH MODE

2. HOW TO SWITCH THE VERSION

(1.x 

2.x, or 5.x 

6.x)

ON THE CLUSTER

You can switch the EPPR valve pressure set by selecting the version(1.x 

2.x, or 5.x 

6.x).

Step 1. Turn the key switch 

ON

.

Step 2. Press the 

SELECT

switch 3 times.

Step 3. While 7 segment on the cluster shows the version of the CPU controller program, for example

21C1.4

press the buzzer stop switch(       ) + travel speed control switch(             )  at the same

time for 2 seconds.

The display changes to 

21C2.4

, and it indicates that version 2.4(Option) is selected.

If you want to get back to ver:1.x, go to step 1~3.

1)

2)

3)

Manually operated condition when prolix switch is selected emergency position.

Mode

Pressure

kgf/cm

2

psi

Electric current

(mA)

Engine rpm

(At accel dial 10)

Standard

(Ver : 1.x)

Option

(Ver : 2.x)

Standard

(Ver : 5.x)

Option

(Ver : 6.x)

Tier-I

Tier-II

H

S

H

S

H

S

H

S

0 

3

13 

3

18 

3

22 

3

2.5 

3

8 

3

4 

3

6 

3

19 

3

0 

40

190 

40

260 

40

320 

40

40

40

120 

40

60 

40

90 

40

275 

40

160 

30

370 

30

430 

30

480 

30

190 

30

290 

30

220 

30

260 

30

440 

30

2250 

50

2150 

50

2250 

50

2150 

50

2150 

50

2050 

50

2050 

50

1950 

50

-

5 - 23

2.  OPERATING PRINCIPLE

STRUCTURE

1)

P

Pilot oil supply line(Pilot pressure)

T

Return to tank

A

Secondary pressure to flow regulator at hydraulic pump

AT H MODE

Pressure line is blocked and A oil returns to tank.

AT S MODE

Secondary pressure enters into A.

P

T

A

P

T

A

P

T

A

2

3

4

5

6

7

1

1

Sleeve

2

Spring

3

Spool

4

O-ring

5

O-ring

6

Solenoid valve

7

Connector

P

T

A

P

T

A

2)

3)

5-22(1) (290-7)

5-22A (290-7)

5-22B (290-7)

5-22(2) (290-7)

5-22C (290-7)