Hyundai R80 7a Crawler Excavator Workshop Service Repair Manual Download

GROUP 3 ELECTRICAL COMPONENT SPECIFICATION Part name

Symbol

Specification

12V Ă? 68Ah (2EA)

Battery

Check

Ăś Check specific gravity 1.280 over : Over charged 1.280 ~ 1.250 : Normal 1.250 below : Recharging

Ü Check coil resistance (M4 to M4) Rated load 24V Normal : About 50̍ 100A(continuity) Ü Check contact 1000A(30second) Normal : â̍

Battery relay

CR-1

1 2 3 4 5 6 1

B

Start key 4

2 3

5 6 C ST

24V 40A

ÜCheck contact OFF : â̍(For each terminal) ON : 0̍(For terminal 1-3 and 1-2) START : 0̍(For terminal 1-5)

3 ~ 6kgf/cm2 (N.O TYPE)

Ü Check contact Normal : â(OPEN)

0.5 kgf/cm2 (N.C TYPE)

Ăś Check resistance Normal 0ĚŤ(CLOSE)

Ι ,O

ΙΙ Ι O H

ACC BR H

CS-2

1

Pressure switch (For overload)

Pa

2

CD-11, CD-12, CD-13 CD-14, CD-31

Pressure switch (For engine oil)

Pa

CD-18

4-25

Part name

Symbol

Temperature sensor (Coolant, hydraulic)

1

Specification

C

2

Check

Ăś Check resistance 50Ă C : 804ĚŤ 80Ă C : 310ĚŤ 100Ă C : 180ĚŤ

CD-1, CD-8, CD-61

Pa

Air cleaner pressure switch

Pressure: Ü Check contact 635mmH2O Normal : â̍ (N.O TYPE)

CD-10

rp

m

1 Tacho sensor

-

2

Ăś Check resistance Normal : 300ĚŤ(For terminal 1, 2)

CD-17

CD-17

2 1

Fuel sender

CD-2

CD-2

1

2

1

24V 20A

Ăś Check resistance Normal : About 200ĚŤ (For terminal 1-3) : 0ĚŤ(For terminal 2-4)

24V 16A

Ü Check resistance Normal : About 160̍ (For terminal 85-86) : 0̍(For terminal 30-87a) : â̍(For terminal 30-87)

2

Relay

3 4

Ăś Check resistance Full : 50ĚŤ 6/12 : 350ĚŤ 11/12 : 100ĚŤ 5/12 : 400ĚŤ 10/12 : 150ĚŤ 4/12 : 450ĚŤ 9/12 : 200ĚŤ 3/12 : 500ĚŤ 8/12 : 250ĚŤ 2/12 : 550ĚŤ 7/12 : 300ĚŤ 1/12 : 600ĚŤ Empty warning :700ĚŤ

4

3

CR-33

30 87a

87

85

30

86

86 87

Relay

85 87a

CR-2 CR-13 CR-45 CR-5 CR-35 CR-62 CR-7 CR-36

4-26

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Part name

Symbol

Specification

2 Solenoid valve

1

Check

24V 1A

ö Check resistance Normal : 15~25̫ (For terminal 1-2)

4̫ 20W

öCheck resistance Normal : 4̫

24V 8A

ö Check contact Normal ON - 0̫(For terminal 1-5,2-6) - â̫(For terminal 5-7,6-8) OFF - â̫(For terminal 1-5,2-6) - 0̫(For terminal 5-7,6-8)

24V 8A

ö Check contact Normal ON - 0̫(For terminal 1-5,2-6) - â̫(For terminal 5-7,6-8) OFF - â̫(For terminal 1-5,2-6) - 0̫(For terminal 5-7,6-8)

24V 70W (H3 TYPE)

ö Check disconnection Normal : 1.2̫

24V 200A

ö Check resistance : 0.25 ~ 0.12̫

CN-66 CN-70 CN-68 CN-140

2 1

Speaker CN-23(LH) CN-24(RH)

10 9

8

7

10

Switch (Looking type)

9

6

5

6

8

4

3

2

1

5

2

7

1

9

8

2

7

1

CS-23 CS-52 CS-84 CS-27 CS-82 CS-50 CS-83

I

10

9

10

6 8

7

6

5

3

4

2

1

5

Switch

CS-67

2

Lamp

1

CL-4, CL-5, CL-6, CL-8, CL-9

Preheater CN-80

4-27

Part name

Symbol

Specification

Check

1 Room lamp

2

24V 10W

ö Check disconnection Normal : A few ̫

24V 10A 35 ˶/min

ö Check resistance Normal : 1.0̫

16V ~ 32V

ö Check operation ÂSupply power(24V) to terminal No. 2 and connect terminal No. 1 and ground.

DC 22.0 ~ 28.0V 2A

ö Check operation ÂSupply power(24V) to each terminal and connect ground.

24V 15A (N.C TYPE)

ö Check contact Normal : 0̫(For terminal A-B) : â̫(For terminal A-C) Operating : â̫(For terminal A-B) : 0̫(For terminal A-C)

24V (N.C TYPE)

ö Check contact Normal : 0̫(one pin to ground)

CL-1

M

1

Fuel filler pump

2

CN-61

1

h

Hour meter

2

CN-48

Horn CN-20

CN-25

C

B

A B

Safety switch 1 A

C

CS-4

Safety switch 2 CS-20

4-28

Part name

Symbol

Specification

Master switch

Check

6-36V

öCheck disconnection Normal : 0.1̫

24V 70W

ö Check disconnection Normal : 1.1̫

24V 6A

öCheck contact Normal : â̫

24V 3.8A

öCheck contact Normal : 10.7̫(For terminal 1-2)

24V 5A 1.4W

öCheck coil resistance Normal : About 1M̫ ö Check contact Normal : â̫ Operating time : 5~15sec

24V 2W

öCheck resistance Normal : About 5M̫

CS-74

Beacon lamp CL-7

Switch (One touch decel, Breaker, Horn)

1 2 CS-5 CS-19 CS-26 CS-29

2 Washer pump

M

1 CN-22

Cigar lighter

CL-2

Switch (Door, Wiper cut) CS-1 CS-53

4-29

Part name

Symbol

Specification

Check

1

3

2 3

5

Wiper motor

4

4

5 6

2

M

24V 2A

öCheck contact Normal : 7̫(For terminal 2-6)

24V 2A

ö Check voltage 20 ~ 25V (For terminal 10-14,11-14)

24V 2.5A

ö Check contact Normal : 0̫

24V 300A

ö Check contact Normal : 0.94̫(For terminal 1-2)

Delco Remy 28MT 24V

ö Check contact Normal : 0.1̫

24V 60A

ö Check contact Normal : 0̫(For terminal B -1) Normal : 24 ~ 27.5V

6

CN-21

1

N.C S.R-

2

S.R-

3 4

S.L-

Cassette radio CN-27

2 Receiver dryer

S.L-

5

N.C

6

ILL+

7

S.R+

8

S.R+

9

ACC

10

B+

11

S.L+

12

S.L+

13

GND

14

Pa

1 CN-29

Start relay

CR-23

M M

Starter B+

CN-45

G

~3

Alternator U

P B

2

L

1

B+

CN-74

4-30

Part name

Symbol

Specification

1

Travel alarm

24V 0.5A

ö Check contact Normal : 5.2̫

24V 79W

ö Check contact Normal : 13.4̫

2 CN-81

1

Aircon compressor

Check

CN-28

Accel dial

DC/DC Converter

A + B S C CN-142

A

24V

B

GND

C

12V

-

24V

ö Check resistance Normal : About 5K̫ (For terminal A-C) ö Check voltage Normal : About 5V (For terminal A-C) : 2 ~ 4.5V (For terminal C-B)

12V 3A

24V(A-B) 12V(B-C)

24V 9.5A

ö Check resistance 2.5̫(For terminal 1-2)

12V

CN-138

M

1

Blower motor

2

Resistor

1

Lo

1

2

MH

3

3

ML

2

4

Hi

4

-

4-31

ö Check resistance 1.12̫(For terminal 4-2) 2.07̫(For terminal 2-3) 3.17̫(For terminal 3-1)

Part name

Duct sensor (Switch)

Symbol

1 2

Preheater relay

Specification

Check

1Á C OFF 4Á C ON

ö Check resistance : 0̫(For terminal 1-2, the atmosphere temp : over 4Á C)

24V 200A

ö Check contact Normal : 0.94̫ (For terminal 1-GND)

CN-24

4-32

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• You can download the complete manual from: www.heydownloads.com by clicking the link below

• Please note: If there is no response to CLICKING the link, please download this PDF first and then click on it.

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