Case 621E Tier 3 Wheel Loader Service Manual 84243974 - PDF DOWNLOAD

SERVICE MANUAL

WHEEL LOADER 621E TIER 3

84243974 (Replaces 87634756

Revised June 2009 Issued September 2007

52

50

A B C D

0-HG BK-0.8 25B W-0.8

BK A A G B B U C C

FORWARD REVERSE NEUTRAL 1 2 3 4 1 2 3 4 1 2 3 4 24V 24V 24V 24V 24V 24V 24V 24V 24V 24V 24V 24V -- -- 24V 24V -- -- 24V 24V -- -- 24V 24V 24V -- -- 24V 24V -- -- 24V 24V -- -- 24V -- -- -- --- -- -- --- -- -- --

D D R A Y B K C S D

ISS A 24V 24V 24V B 24V 24V 24V C -- -- -D -- -- --

0-HH BK-0.8 25C W-0.8

TSS

24V 24V 24V 24V 24V 24V 24V 24V 24V -- -- -- --- -- --- 24V 24V 24V 24V -- -- ---- -- -- -- 24V 24V 24V

25W LU-0.8 25Z LU-0.8 25Y LU-0.8

24V --24V

A B C

SPL-D11

TS1

1 2

51 1-11

1

2-4 13

A7 A

B8 B

5A

B7 B

SPL-POS-L 18F-C OR-1.0 18F-A OR-0.8 18G-F OR-0.8

16-10 14 0-MA BK-1.0 16-7 15 49-C S-0.8 8-5 16 49-H S-0.8 11-3 17 49-L S-0.8 22-1 18 49A S-0.8 49-P S-0.8 13-12 19 8-10 20 49-R S-0.8 49S S-0.8 8-7 21 5-8 22 49-E S-0.8

B A8

B 5A B6

ECB-F6

44-A T-0.8 1-DW R-1.0

SPL-FLSHR-PWR

K3

K L M

BRAKE LIGHTS RELAY

GND-CAB-SPL2 0-EF BK-0.8 44A-A T-0.8

98

Not Used 0-B24 BK-0.8 49-D S-0.8 Not Used Not Used Not Used Not Used Not Used 45H N-0.8 1-KA R-1.0

10 7 8 9 6 5 4 1 3 2

93

10 7 8 9 6 5 4 1 3 2

FRAME - WIRE

SHOWS CIRCUIT SHOWS CROSSING CIRCUIT SPLICE NOT CONNECTED CONNECTION

WIRE

Wire Tag assigned to wire in Frame.

CIRCUIT CONTINUATION

54 COMPONENT NUMBER

FEMALE TERMINAL

INDICATES EXTERNAL GROUND GROUND

CAB-E

0-B19 BK-0.8 49-P S-0.8 19Z-B OR-1.0 Not Used Not Used 41J OR-1.0 Not Used Not Used 41T K-1.0 19Z-A OR-1.0

8

SPL-HRN

11-1 9 35A-F Y-0.8 11-2 10 35A-C Y-0.8 19-4 11 0-EP BK-0.8 BUSS-J4-ECA

7 8 5 10 9 6 1 4 3 2

30 87 87A 85 86

7 8 5 10 9 6 1 4 3 2

53B W-1.0 0-AC BK-1.0 53P-H W-1.0

PXH

54B W-1.0 0-AA BK-1.0 53P-J W-1.0

A B A B

36B P-0.8 0-DY BK-1.0 52P-A W-0.8 33P-A Y-0.8

66

PAF 1 1 2 2

31F Y-1.0 0-BY BK-1.0

1

8 9 24 26

Not Used Not Used 52P W-1.0 33P Y-1.0

8 9 24 26

RFL

67

1 2 1 2

PBW

2 2

YPB

G 1

69 68

40.3

58-C W-0.8 58-D W-0.8

TRAN-E

0-HC BK-1.0 Not Used Not Used

2 2 3 3 4 4

0-HC BK-1.0 Not Used 0-HW BK-1.0 0-HV BK-1.0 0-HL BK-1.0 0-HM BK-1.0 SPL-TRN-GRD A B C D E F

PRB1

AT 20°C

1-9 3 13V OR-0.8 43-A DU-0.8 12-3 4 CAN-LG Y-0.8 18-10 5 CAN-HG Y-0.8 18-11 6 4-4 7 53C-A W-0.8 44A-B T-0.8 13-16 8 5-14 9 52 W-0.8 5-15 10 56 W-0.8 4-2 11 BUSS-J6-ECA 5-19 12 BUSS-J7-ECA 7-3 13 52P-C W-0.8

A B A B

75

PRB2

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

ENG-H

0-JA-N BK-1.0 44A-EN T-1.0 45L-BN N-1.0 45R-BN N-1.0 18G-JN OR-1.0 18F-BN OR-1.0 35A-HN Y-1.0 Not Used

2 3 4 1

0-JA-N BK-1.0

44A-FN T-1.0 18F-BN OR-1.0 45L-BN N-1.0 0-BR-N BK-1.0 SPL-J1

1 2 3 4 5 6

1 2 3 4 5 6

SPL-B8

101

44A-F T-1.0 45R-A N-1.0 18G-J OR-1.0 35A-K K-1.0 0-BR BK-1.0 Not Used

2 3 4 1

1 2 3 4 5 6

1 2 3 4 5 6

76

2 3 4 1

2 3 4 1

LLR-12

SPL-POS

E-HD HD-E

18G-D OR-1.0 35A-G Y-1.0 0-BAG BK-1.0

102

A A B B C C

LPL

18G-E OR-0.8 35A-H Y-1.0 0-JA BK-1.0

SPL-J1

18G-E OR-0.8 0-JC BK-1.0

102

A A B B

A A B B

HN2

103 103

99

BU1

0-JB BK-1.0 35A-H Y-1.0

BU1

0-JB BK-1.0 35A-HN Y-1.0

BU2 BU2

18F-AN OR-1.0 Not Used 44A-DN T-1.0 18G-HN OR-1.0 45L-AN N-1.0 45R-AN N-1.0 35A-GN Y-1.0

5 7 8 9 10 12 40

13-8

1

(CAB-E)

ENG

18F-B OR-1.0 35A-J K-1.0 44A-D T-1.0 18G-H OR-1.0 45L-A N-1.0 45R-A N-1.0 35A-G Y-1.0

5 7 8 9 10 12 40

13-8

1 - 1. Starting Relay 1 - 2. Resistor - 75 Ohm 1 - 3. Alternator 1 - 4. Crank Control Relay 1 - 5. Batteries 1 - 6. Crank Request Relay 1 - 7. Time Delay Module 1 - 8. Master Disconnect Switch 1 - 9. Starter 1 - 10. Ignition Switch 1 - 11. Neutral Start Relay 1 - 12. Voltmeter Relay 222222222-

LRR-E

LPL

1 (CAB-E)

ENG

13.

14.

15.

16.

17.

18.

19.

20.

21.

Power Relay Module A Power Relay Module B Power Relay Module C Grid heater Relay Grid Heater Power Relay Module D Circuit Breaker Cab + Water Separator Heater Fuel Filter Heater

3 - 22. Water In Fuel Sensor 3 - 23. Throttle Potentiometer 3 - 24. Engine Controller 4 - 25. Return-to-Travel Float Switch 4 - 26. Height Control Switch 4 - 27. Electromagnetic Detents Pins 3 and 4 - Return-to-Dig Pins 2 and 5 - Height Control Pins 1 and 6 - Return-to-Travel 4 - 28. Return-to-Dig Proximity Switch 4 - 29. Pilot Control Relay ECD-K3 4 - 30. Height Control and Return-to-Travel Proximity Switch 4 - 31. Return-to-Dig Switch 4 - 32. Pin Engage Switch (Option) 4 - 33. Pilot Pressure Solenoid 4 - 34. Pin Engage Solenoid (Option)

64C OR-0.8

FRAME 14

WIRE IDENTIFICATION FEMALE CONNECTOR CONNECTOR NUMBER CONNECTOR IDENTIFICATION

MALE CONNECTOR 1 1 2 2 3 3

45E 45D RELAY REAR

4 4 18 18 27 27

INDICATES PARTIAL CONNECTOR NOT ALL CONNECTIONS ARE SHOWN

BK . BLACK DU . DARK BLUE G. . . GREEN K . . . PINK LG. . LIGHT GREEN LU . . LIGHT BLUE N . . . BROWN

OR . ORANGE P . . . PURPLE (Violet) R . . . RED S . . . GREY

CLS

A B A B

77

BC07E173-NA15A

ECA-F14 C4 B

5A

0-BQ BK-1.0 0-BB BK-1.0

19A-P BK-1.0

19H OR-1.0

ECD F9/F10

86

30

78 85 87A 87

35C Y-0.8

35A-A Y-0.8

10 7 8 9 6 5 1 4 3 2

10 7 8 9 6 5 1 4 3 2

Not Used 0-B21 BK-1.0 49-L S-0.8 Not Used Not Used Not Used 35R-C Y-0.8 Not Used Not Used 35A-B Y-0.8

SBU

J K L M

4-1 1 57-C W-0.8 1-7 2 21K-A W-0.8 5-5 3 31L Y-0.8 2-2 4 13H-B OR-0.8 8-2 5 BUSS-J3-ECA 17-6 6 BUSS-J4-ECA 5-17 7 52AU W-0.8 5-16 8 52M W-0.8 17-2 9 35X Y-0.8 13-7 10 45R-C N-0.8 13-6 11 45L-E N-0.8 12-1 12 43S-C W-0.8 18-8 13 CAN-LF G-0.8 18-9 14 CAN-HF Y-0.8 13-4 15 41H-D OR-0.8 13-5 16 41T-D K-1.0 12-4 17 42C-E DU-1.0 5-11 18 0-B29 BK-0.8 5-9 19 49-V S-0.8 5-6 20 19A-J OR-0.8 8-8 21 19A-S OR-0.8

35A-D Y-0.8 35A-B Y-0.8 35A-A Y-0.8 35A-C Y-0.8

SPL-PK1

209F 209M SPL-D8-C1 35A-E Y-0.8 A A

See Note 3

13-9 1 35A-F Y-0.8 13-10 2 35A-C Y-0.8 49-L S-0.8 12-17 3 12-10 4 0-B21 BK-1.0 7-1 5 35C Y-0.8 8-9 6 19A-P BK-1.0 22-5 7 BUSS-J15-ECA 16-8 8 BUSS-J14-ECA

FRAME 11 BC07E173-10A

BC07E173-11A

FRAME - COMPONENT NUMBERS

55555-

37.

38.

39.

40.

41.

Fan Control Switch (Option) Fan Reverse Relay (Option) Pilot Control Switch Ride Control Solenoid (Option) Rollback Pressure Switch (XT with Ride Control Only) 5 - 42. Rollback Jumper 5 - 43. Fan PWM Solenoid 5 - 44. Fan Reverse Solenoid (Option) 6 - 45. Output Speed Sensor 6 - 46. Transmission Solenoid Valve and Temperature Sender 6 - 47. Filter Maintenance Switch 6 - 48. Torque Convertor Output Temperature Sender 6 - 49. Engine Speed Sensor 6 - 50. Intermediate Speed Sensor 6 - 51. Turbine Speed Sensor 6 - 52. Transmission Shifter 7 - 53. Transmission Electronic Control Module 88888888-

54.

55.

56.

57.

58.

59.

60.

61.

Transmission Enable Switch FNR Switch for Joystick Controls Transmission Kick-Down Switch FNR Switch for Single Axis Controls Transmission Auto Switch Brake Declutch Pressure Switch Declutch Switch Diagnostic Connector

99999999-

62.

63.

64.

65.

66.

67.

68.

69.

Instrument Cluster Connector 1 Warning Buzzer Parking Brake Relay Fuel Level Sender Air Filter Restriction Switch Parking Brake Solenoid Radiator Coolant Temperature Sender Brake Pressure Warning Switch

10 - 70. Switch Pad 10 - 71. Instrument Cluster Connector 2 10 - 72. Hydraulic Filter Restriction Switch

FRAME - COMPONENT NUMBERS

10 - 73.

10 - 74.

10 - 75.

10 - 76.

10 - 77.

Hydraulic Oil Temperature Sender Park Brake Switch Redundant Brake Pressure Switch 1 Redundant Brake Pressure Switch 2 Coolant Level Sender

11 - 78. Backup Alarm Relay 11 - 79. Backup Alarm Disable Switch 12 - 80.

12 - 81.

12 - 82.

12 - 83.

12 - 84.

12 - 85.

12 - 86.

12 - 87.

12 - 88.

12 - 89.

Work Lamps Switch Door Switch Rotating Beacon (Optional) Dome Lamp Rotating Beacon Switch (Optional) Left-Hand Front work Lamp Right-Hand Front work Lamp Left-Hand Rear work Lamp Right-Hand Rear work Lamp Diodes

13 - 90.

13 - 91.

13 - 92.

13 - 93.

13 - 94.

Brake Lamp Switch Brake Lamp Relay Flasher Module Hazard Switch Turn Signal, High-Low Beam, and Horn Switch 13 - 95. Driving Lamps Switch 14 - 96. Left-Hand Front Combination Lamps Pin 1 - Ground Pin 2 - Low Beam Pin 3 - High Beam Pin 4 - Position Pin 5 - Turn Signal 14 - 97. Right-Hand Front Combination Lamps Pin 1 - Ground Pin 2 - Low Beam Pin 3 - High Beam Pin 4 - Position Pin 5 - Turn Signal 14 - 98. Horn Relay 14 - 99. Horn

FRAME - COMPONENT NUMBERS

NORTH AMERICA 15 - 100. Right-Hand Rear Combination Lamps Pin 1 - Ground Pin 2 - Brake Lamp Pin 3 - Tail Lamp Pin 4 - Turn Lamp 15 - 101. Left-Hand Rear Combination Lamps Pin 1 - Ground Pin 2 - Brake Lamp Pin 3 - Tail Lamp Pin 4 - Turn Lamp 15 - 102. Licence Plate Lamp 15 - 103. Backup Alarm EUROPE 100. Right-Hand Rear Combination Lamps Pin 1 - Brake Lamp Pin 2 - Turn Lamp Pin 3 - Tail Lamp Pin 4 - Backup Lamp Pin 5 - Ground Pin 6 - Not Used 101. Left-Hand Rear Combination Lamps Pin 1 - Brake Lamp Pin 2 - Turn Lamp Pin 3 - Tail Lamp Pin 4 - Backup Lamp Pin 5 - Ground Pin 6 - Not Used 102. Licence Plate Lamp 103. Backup Alarm

BC07E173-EU15A

NOTES

702A G-1.0 WIRE NUMBER WIRE COLOR

5 - 35. Ride Control Switch (Option) 5 - 36. Ride Control Relay (Option)

FRAME 15-EU

FRAME 15-NA BC07E173-14A

SPB

FRAME - COMPONENT NUMBERS

LRR-12

18G-EN OR-1.0 0-JC BK-1.0

64 OR-1.0 0-AF BK-1.0

Not Used 0-B29 BK-0.8 49-V S-0.8 Not Used Not Used Not Used Not Used Not Used 33U Y-0.8

SPL-PB1

A B A B

L2-4 A

BUSS-J14-ECA BUSS-J15-ECA

COMPONENT

101

HD-N

19S-D OR-0.8 0-DB BK-0.8 57-C W-0.8 21K-A W-0.8 31L Y-0.8 Not Used 19S -C OR-0.8 19E -A OR-0.8 0-DA BK-0.8 Not Used Not Used Not Used 31D-A Y-0.8

FRAME 10

LIGHTS-04 AND BACKUP ALARM EUROPE

SPL-J2-N 44A-GN T-1.0 44A-EN T-1.0 18G-CN OR-1.0 45R-BN N-1.0 0-BT-N BK-1.0 SPL-POS-NA

10 7 8 1 9 5 6 4 3 2

BC07E173-09A

44A-D T-1.0 35A-J K-1.0 SPL-A1A

0-BAG-N BK-1.0 44A-DN T-1.0 45L-AN N-1.0 45R-AN N-1.0 18G-HN OR-1.0 18F-AN OR-1.0 35A-GN Y-1.0 Not Used

71

79 19E -A OR-0.8

ENG-T

0-BK BK-1.0 Not Used Not Used

1 1

16-1 1 5-4 2

0-BY BK-1.0 0-B26 BK-0.8

10 7 8 1 9 5 6 4 3 2

36H P-1.0 0-HW BK-1.0

SPL-RD

RFLG

RECT

14 15 16 17 18 19 20 21 22 23 24 25 26

33R Y-0.8 31D-A Y-0.8 31H-A Y-0.8 36H-A P-0.8

1 2 23 30

HOT

SPL-A4

S

1 2 3 4 5 6 7 8 9 10 11 12 13

19S -C OR-0.8 19S -B OR-0.8 SPL-DLY3 19S-D OR-0.8

SPL-PB

1 2 23 30

74

A A B B

CAB-F FRONT

100

1

0-AD BK-1.0 58-B W-1.0

PXT PXF PXM

B A5

0-BJ BK-0.8 0-BG BK-0.8 0-BH BK-0.8 31F Y-1.0 Not Used 36F P-1.0 36C P-1.0

17 19 20 28 32 33 34

33R-A Y-1.0 31D Y-1.0

FRAME 9

19U-E OR-0.8 19U-A OR-0.8

4-6 0-AF BK-1.0 1-3 2 BUSS-J6-ECC 21-2 3 BUSS-J7-ECC 4-8 4 0-AH BK-1.0 4-7 5 0-AJ BK-1.0

SW-PAD

PHF

85 87A 87

52P-B W-0.8

CAB-E ENG

65

BACK-UP ALARM

B B3

17 19 20 28 32 33 34

64

LLR-E

19U-A OR-0.8 64-A OR-0.8 Not Used 64C OR-0.8 19U-E OR-0.8

0-B28 BK-0.8 17P-A OR-0.8 CAN-LF G-0.8 CAN-HF Y-0.8 Not Used

73

44A-E T-1.0 45L-A N-1.0 18F-B OR-1.0 35A-L K-1.0 0-BT BK-1.0 Not Used

CAB-F FRONT 13 13

10 9 8 7 6

31H Y-1.0 36H P-1.0

100

1 2 3 4 5 6

5 4 3 2 1

B A3

0-DX BK-0.8 0-DW BK-0.8 0-DB BK-0.8 31F-A Y-0.8 36A P-0.8 36F-A P-0.8 36C-A W-0.8

10-21 8 19A-S OR-0.8 11-6 9 19A-P BK-1.0 49-R S-0.8 12-20 10 12-7 11 0-B18 BK-0.8

HN1

12-19 12 12-8 13 14 15

64C OR-0.8

53B-A W-1.0 0-AM BK-1.0 53P-I W-1.0

19C-A OR-1.0

19C-D OR-1.0

A 5A L1-5 ECA-F5

0-B28 BK-0.8 0-B26 BK-0.8

95

SDR 49-P S-0.8 0-B19 BK-0.8 5-10 49-D S-0.8 5-12 0-B24 BK-0.8 9-8 16 44A-B T-0.8 1-2 17 BUSS-J5-ECC

1 2 3 4 5 6

AIC-2

Not Used 43S-C W-0.8 Not Used 33R Y-0.8 33P-A Y-0.8 33U Y-0.8 52M W-0.8 52AU W-0.8 45L-E N-0.8 45R-C N-0.8 35X Y-0.8 Not Used Not Used

A 7.5 A L1-3 ECA-F3

25G-A LU-0.8 19A-T OR-0.8

10 7 8 9 6 5 1 4 3 2

30

K5

1 1 2 2

SPL-PBS

1 2 3 4 5 6

BC07E173-13A

INDICATES INTERNALLY GROUNDED COMPONENT

35B W-0.8 0-B27 BK-0.8 SPL-BUZ

LIGHTS-04 AND BACKUP ALARM NORTH AMERICA

K4 ECC 30 87 87A 85 86

CIRCUIT DIAGRAM LEGEND MALE TERMINAL

ECB 86

BUZ

60

BUSS-J2-ECA 10-5 1 2-3 2 BUSS-J1-ECA 2-1 3 13H-C OR-0.8

LRF

85 87A 87

SPL-BRK 44A-B T-0.8

5 18F-A OR-0.8 7 35A-C Y-0.8 8 44A-C T-0.8 15-1 18G-F OR-0.8 9 10 (ENG) 45L-B N-0.8 12 45R-B N-0.8 40 35A-F Y-0.8

0-AH BK-1.0 18E OR-1.0 18C OR-1.0 18G-A OR-1.0 45R N-1.0 Not Used

FRAME 13

WIRE TAGS 00-0 1 1 00-0

19D-B OR-0.8 19D-C OR-1.0

LLF

30

SHZ

41J OR-1.0 41H-A OR-1.0 41L-A OR-1.0 19Z-C OR-1.0 64C OR-0.8 0-EP BK-0.8

63

91

ECC 86

1 1

5-18 1 BUSS-J8-ECA 3-2 2 BUSS-J9-ECA BUSS J3-ECC 12-15 3 41H-D OR-0.8 10-15 4 10-16 5 41T-D K-0.8 45L-E N-0.8 10-11 6 45R-C N-0.8 10-10 7

1-AA R-1.0 44 T-1.0

1 2 3 4 5 6

36H-A P-0.8 17P-A OR-0.8 33P-A Y-0.8 0-B28 BK-0.8 31F-A Y-0.8 31H-A Y-0.8 42C-E DU-1.0 41T-D K-1.0 41H-D OR-0.8

62

SPL-TRNS-PWR A 19A-N OR-1.0 B 19A-F OR-0.8 C 19A-Q OR-0.8 D 19A-T OR-0.8 E 19A-W OR-0.8 F 19A-C OR-0.8 G 19A-P BK-1.0 H 19A-R OR-0.8 J 19A-K OR-0.8 K 19A-M OR-0.8 L 19A-S OR-0.8 M 19A-H OR-0.8

0-DAP S-0.8 12-11 4 49-H S-0.8 12-16 5 12-6 6 0-B17 BK-0.8 49S S-0.8 12-21 7

36H-A P-0.8 17P-A OR-0.8 33P-A Y-0.8 0-B28 BK-0.8 31F-A Y-0.8

72

97

44A-C T-0.8

49A 49A L L R R 56 56 56A 56A 56B 56B 56D 56D 31B 31B 31 31 SRHSTLK

0-AJ BK-1.0 18D OR-1.0 18B OR-1.0 18F OR-1.0 45L N-1.0 Not Used

PBL

BC07E173-12A

Frame and Wire Tag Number where circuit continues.

SPL-DC

10 7 8 9 6 5 1 4 3 2

0-DB BK-0.8

TRANS CAB-T

96

FRONT

1 1 2 2

1-KA R-1.0 1-DU R-1.0 1-DV R-2.0 0-EH BK-0.8 0-EG BK-0.8

A A6

18E-A OR-0.8 18D-A OR-0.8

41H-B OR-0.8 41H-C OR-0.8 41L-C OR-0.8 41L-B OR-0.8

B B5

5A

ECB-F5

SPL-LB

64M 64F 19B OR-0.8

FRAME 12

SPL-00

Not Used 0-B18 BK-0.8 49-R S-0.8 Not Used Not Used Not Used 25G-B LU-0.8 Not Used Not Used 19A-R OR-0.8

0-DB BK-0.8

AIC-1

SDC

28 27 28 27

FRONT CAB-F

59

45L N-1.0 45R N-1.0 18G-A OR-1.0 18F OR-1.0 18B OR-1.0 18D OR-1.0 18E OR-1.0 18C OR-1.0

BC07E173-05A

70

BC07E173-08A

90

1-DV R-2.0

A B C

ECB-F4

A A5

1-DU R-1.0 45N-A N-0.8 0-EH BK-0.8 0-EG BK-0.8 Not Used Not Used 45R-E N-0.8 45L-D N-0.8 45A-A N-0.8 45B-A N-0.8 45H N-0.8 45N-B N-0.8

B B4

5A

45L N-1.0 45R N-1.0 18G-A OR-1.0 18F OR-1.0 18B OR-1.0 18D OR-1.0 18E OR-1.0 18C OR-1.0 1-AA R-1.0 44 T-1.0

1 3 5 6 7 14 15 16 22 23

A4 B

42C-D DU-1.0 41T-C K-1.0 49 DU-1.0

A A4

1 3 5 6 7 14 15 16 22 23

CAB-F

B B3

5A

ECB-F3

10 A

5

89 D-OR

A L1-8

43S-D W-0.8 43S-C W-0.8

42C-E DU-1.0 43-A DU-0.8

10-12 1 1-4 2 9-4 3 10-17 4 13-3 BUSS-J3-ECC 8-6 6 0-B17 BK-0.8 8-11 7 0-B18 BK-0.8 13-13 8 0-B19 BK-0.8 16-11 9 0-B8 BK-0.8 0-B21 BK-1.0 11-4 10 8-4 11 0-DAP S-0.8 16-6 12 0-B23 BK-0.8

49 DU-1.0 Not Used 49-C S-0.8 49-H S-0.8 49-L S-0.8 49A S-0.8 49-P S-0.8 49-R S-0.8 49S S-0.8 49-E S-0.8 49-B S-0.8 49-A S-0.8 SPL-BCK-LGT A B C D E F G H J K L M

5A

88

A A3

94

ECA-F8

87

BUSS-J4-ECA

86

SPL-POS-R

18G OR-1.0

ECB-F7

45L-C N-0.8 45R-D N-0.8 18G-G OR-0.8 18F-E OR-0.8 18B-A OR-0.8 18D-A OR-0.8 18E-A OR-0.8 18C-A OR-0.8 1-DR R-1.0 44-A T-0.8

ECC-F4

B A3 15 A

B A B A

19A-A OR-1.0 25G LU-1.0

LIGHTS-03 AND HORN

45A-A N-0.8 45B-A N-0.8

SPL-D

LDM2

LDM3

SPL-WRKR B A B A

41T-C K-1.0

0-DR BK-1.0 0-DS BK-1.0

0-B13 BK-1.0

B A B A

41T-C K-1.0

85

0-B13 BK-1.0 0-B14 BK-0.8 0-B15 BK-0.8 Not Used 0-B17 BK-0.8 0-B18 BK-0.8 0-B19 BK-0.8 0-B8 BK-0.8 0-B21 BK-1.0 0-DAP S-0.8 0-B23 BK-0.8 Not Used SPL-BCK-LT-GD

BUSS-L1-ECC

B A B A

92

A L1-3

SPL-ROOF

SBE

A B C D E F G H J K L M

5A

41T-B K-1.0

1 2 3 4 5 6 7 8 9 10 11 12 FLSHR

ECC-F3

Not Used 0-B15 BK-0.8 49-B S-0.8 Not Used Not Used Not Used Not Used Not Used 46-C K-1.0 19U-H OR-1.0

0-MC BK-1.0 0-MB BK-0.8 0-MU BK-1.0 0-ME BK-1.0 0-MF BK-1.0 0-MA BK-1.0 Not Used Not Used 0-MJ BK-1.0 Not Used 0-MN BK-1.0 0-MK BK-1.0

LRRW

A B C D E F G H J K L M

0-MF BK-1.0 42R-G DU-1.0

10 7 8 9 6 5 4 1 3 2

42C-F DU-1.0

SPL-LT

84 10 7 8 9 6 5 4 1 3 2

A8 A

41T-B K-1.0 41T-E K-1.0 41T K-1.0 41T-A K-1.0 19Z-A OR-1.0 19Z-B OR-1.0 19Z OR-1.0 19Z-C OR-1.0 41H-C OR-0.8 41H-B OR-0.8 41H-A OR-1.0 41H-D OR-0.8

A B C D E F G H J K L M

42R-F DU-1.0

LLRW

ECC-F1

19U-B OR-1.0

1

83

0-ME BK-1.0 42R-H DU-1.0

B A-1

BUSS-J3-ECC BUSS-J2-ECC

2

SPL-WRKF

SPL-WL

A A B B

81

LRFW

A 7.5 A L1-1

41T-A K-1.0

SPL-PK2

41T-C K-1.0 41T-D K-0.8

SPL-DS

3

0-MJ BK-1.0 42C-G DU-1.0

ECC-F2

19U-C OR-0.8 43-B DU-0.8 0-MB BK-0.8

DS

19U-H OR-1.0

A L1-2

45L-E N-0.8 45L-D N-0.8 45L-C N-0.8 45L-B N-0.8 45R-C N-0.8 45R-E N-0.8 45R-D N-0.8 45R-B N-0.8

LDM1

R R 43S-B W-0.8 43S-A W-0.8 19U-G OR-0.8 S S 19U-F BK-0.8 CAB-RF ROOF

42 R-2.0 B 15 A A2

A B C D E F G H

M

82

LLFW

SWL

1 1 A B

ECB-F8

SPL-PK3

19U-G OR-0.8 19U-D OR-0.8

0-B14 BK-0.8 49-A S-0.8 42-B R-2.0 Not Used Not Used 42RS DU-1.0 Not Used Not Used 42FS DU-1.0 42-A R-2.0

7 8 5 10 9 6 1 4 3 2

43S-D W-0.8 43S-C W-0.8

7 8 5 10 9 6 1 4 3 2

25Y-B LU-0.8 19A-M OR-0.8 19A-H OR-0.8

16-13 7 49-T S-0.8 49-E S-0.8 12-22 8

19P-A OR-0.8

SWITCH PAD - INSTRUMENT CLUSTER 2 - PARK BRAKE

52C W-0.8 44A-B T-0.8 Not Used Not Used Not Used Not Used 53C-A W-0.8 Not Used Not Used 52 W-0.8 Not Used 17P-A OR-0.8 56 W-0.8

FRAME 8

L1-4 A

ECB-F2

42FS DU-1.0

80

BUSS-L1-ECC

B B2

0-MC BK-1.0 46-D K-1.0

ROOF A 43-B DU-0.8 B 42R-F DU-1.0 C 42C-F DU-1.0 D 19U-C OR-0.8 E 46-D K-1.0 F 0-MN BK-1.0 G 0-MK BK-1.0

LBEGRD

ECB-F1

A 10 A A2

CAB-RF A 43-A DU-0.8 B 42R-C DU-1.0 C 42C-A DU-1.0 19U-D OR-0.8 D E 46-C K-1.0 F 0-DR BK-1.0 G 0-DS BK-1.0

0-MU BK-1.0 42C-H DU-1.0

SPL-PK1

A A1

25Y-B LU-0.8 19A-M OR-0.8 19A-H OR-0.8

LIGHTS-02

LBEPWR

B 10 A B1

19A-K OR-0.8 26N-B LU-0.8 26E LU-0.8 26R-B LU-0.8 25H LU-0.8 19T-A OR-0.8 26F-B LU-0.8 37E P-0.8 37D-A P-0.8 32J-D Y-0.8

7 8 5 4 9 6 1 10 3 2

BC07E173-07A

LIGHTS-01 42C-A DU-1.0 42C-E DU-1.0 42C-D DU-1.0 42C-C DU-1.0

19A-K OR-0.8 26N-B LU-0.8 26E LU-0.8 26R-B LU-0.8 25H LU-0.8 19T-A OR-0.8 26F-B LU-0.8 37E P-0.8 37D-A P-0.8 32J-D Y-0.8

197M

A A B B

FRAME 7 BC07E173-06A

A B C D

25G-C LU-0.8

32J-A Y-0.8 25Y-C LU-0.8 19A-B OR-0.8 26F-A LU-0.8 26R-A LU-0.8 26N-A LU-0.8

7 8 5 4 9 6 1 10 3 2

57

14 15 16 17 18 19 20 21 22 23 24 25 26

PBD

108F

25G-C LU-0.8

5 6 1 2 4 3

197F

0-B17 BK-0.8 49S S-0.8 Not Used Not Used Not Used Not Used Not Used 25H LU-0.8 19A-Q OR-0.8

0-DAV BK-0.8 Not Used 37D-A P-0.8 Not Used 37E P-0.8 19A-W OR-0.8

3 5 2 6 4 1

5 6 1 2 4 3

A 7.5 A L1-1 ECA-F1

61

11-5 35C Y-0.8 5-3 58H-A W-0.8 3 9-13 52P-C W-0.8 4 18-7 CAN-HD Y-0.8 5 18-6 CAN-LD G-0.8 6 5-1 58L BK-0.8 7 1-10 25T-C LU-0.8

FRAME 6

10 7 8 9 6 5 4 1 3 2 STA

25W LU-0.8 25Z LU-0.8 25R LU-0.8 25F LU-0.8 25Y-A LU-0.8 25Y-B LU-0.8 19A-M OR-0.8 19A-H OR-0.8

19A-H OR-0.8 25F LU-0.8 25R LU-0.8 25T-B LU-0.8

D

58 10 7 8 9 6 5 4 1 3 2

1

SFNR

32J-A Y-0.8 19A-G OR-0.8 19A-V OR-0.8 SPL-FNR 26J LU-0.8 Not Used 26F-A LU-0.8 26R-A LU-0.8 Not Used 26N-A LU-0.8 26J LU-0.8

197M

STE

32J-E Y-0.8 25Y-B LU-0.8 19A-C OR-0.8 26F-B LU-0.8 26R-B LU-0.8 26N-B LU-0.8

49-V S-0.8 10-19 9 49-D S-0.8 13-14 10 10-18 11 0-B29 BK-0.8 0-B24 BK-0.8 13-15 12 16-2 13 0-BS BK-1.0 9-9 14 52 W-0.8 9-10 15 56 W-0.8 10-8 16 52M W-0.8 10-7 17 52AU W-0.8 13-1 18 BUSS-J8-ECA 9-12 19 BUSS-J7-ECA

A 10 A A3 ECD-F3

25S-B LU-0.8 25S-C LU-0.8

0-DP BK-0.8 0-DQ BK-0.8

SPL-H2

25W LU-0.8 25Z LU-0.8 25R LU-0.8 25F LU-0.8 25Y-A LU-0.8 25Y-B LU-0.8 19A-M OR-0.8 19A-H OR-0.8

TS2

SPL-D12

1 6 5

7.5 A ECA-F7

A B C D E F

SPL-PED-BL-GD Not Used A B 0-B1 BK-0.8 0-B24 BK-0.8 C Not Used D 0-B29 BK-0.8 E 0-B11 BK-0.8 F

L1-7 A

BUSS-J4-ECA BUSS-J3-ECA

25S-A LU-0.8

55

P K Y N 3 4 2

1 13V OR-0.8 2 36F-A P-0.8 CAN-HG Y-0.8 3 CAN-LG Y-0.8 4 5 36A P-0.8 6 0-DX BK-0.8 7 43-A DU-0.8 8 36B P-0.8 9 36H-A P-0.8 10 Not Used 11 36C-A W-0.8 0-DW BK-0.8 12 13 35B W-0.8

2 1

20M

202M

19A-L OR-0.8

25S-A LU-0.8

2 2 1

58-A W-1.0

FRAME 5

56 25Y-C LU-0.8 19A-U OR-0.8

42

19P-A OR-0.8 19P OR-0.8 19P-C OR-0.8 Not Used 19P-D OR-0.8 19P-E OR-0.8

0-DA BK-0.8

ESS

49

A 2 B 1

25C-A LU-0.8

1

AT 20°C

SPL-FAN SPL-PIN

A B

19A-S OR-0.8 19A-J OR-0.8

25A W-0.8 0-HF BK-0.8

A 2 B 1

25C-A LU-0.8

TRANS CAB-T

TCOT A 1 B 2

25B-A LU-0.8

SPL-D15 19A-F OR-0.8 19A-E OR-0.8 0-DAP S-0.8 49-H S-0.8 Not Used Not Used Not Used Not Used SPL-D16 32J-C Y-0.8 26E LU-0.8 19A-D OR-0.8

36C P-1.0

36R-D P-1.0 36G P-1.0

A 2 B 1

25B-A LU-0.8

SPL-D5

10 7 8 1 6 5 4 9 3 2

0-JB BK-1.0 0-JC BK-1.0

48

25K-A LU-0.8 25L-A LU-0.8 25M-A LU-0.8 25N-A LU-0.8 25P-A LU-0.8 25J-A LU-0.8 36T-A P-0.8 32F-A Y-0.8 0-DN BK-0.8 25D-A LU-0.8 36R-E P-0.8 36G-A P-0.8 25A-A LU-0.8 0-DM BK-0.8

10 7 8 1 6 5 4 9 3 2

TRANS ECM

SPL-H1

FM

See Note 2

54

0-BAG-N BK-1.0

32F Y-1.0 36R-B P-1.0

A 1 B 2 510

-------------

1 2 3 4 5 7 8 9 10 12 13 15 17 18 19 20 21 22 23 25 26 27 29 30 31 32 39 41 42 43 44 45 46 49 51 55 56 57 62 63 64 65 66 67

64 OR-1.0

19A OR-1.0 25D LU-1.0 0-HE BK-1.0

47

0-DP BK-0.8 0-DQ BK-0.8 0-DM BK-0.8 0-DN BK-0.8 32J-D Y-0.8 35C Y-0.8 58H-A W-0.8 25P-A LU-0.8 25L-A LU-0.8 25S-B LU-0.8 25S-C LU-0.8 37D-A P-0.8 32F-A Y-0.8 37E P-0.8 25A-A LU-0.8 26F-B LU-0.8 52P-C W-0.8 25Y-A LU-0.8 19T-A OR-0.8 CAN-HD Y-0.8 CAN-LK G-0.8 CAN-LJ G-0.8 25H LU-0.8 26R-B LU-0.8 26E LU-0.8 25M-A LU-0.8 36T-A P-0.8 25C-A LU-0.8 25B-A LU-0.8 25F LU-0.8 26N-B LU-0.8 19A-K OR-0.8 36R-E P-0.8 36G-A P-0.8 25J-A LU-0.8 25N-A LU-0.8 25K-A LU-0.8 58L BK-0.8 25D-A LU-0.8 25Z LU-0.8 25R LU-0.8 25W LU-0.8 25G-C LU-0.8 25T-C LU-0.8

4 ----

25K-A LU-0.8 25L-A LU-0.8 25M-A LU-0.8 25N-A LU-0.8 25P-A LU-0.8 25J-A LU-0.8 36T-A P-0.8 32F-A Y-0.8 0-DN BK-0.8 25D-A LU-0.8 36R-E P-0.8 36G-A P-0.8 25A-A LU-0.8 0-DM BK-0.8

10-1

2 1 2 1

39.3

BC07E173-04A

B A1

TRC

Not Used 25K-A LU-0.8 25L-A LU-0.8 25M-A LU-0.8 25N-A LU-0.8 25P-A LU-0.8 25J-A LU-0.8 25S-A LU-0.8 36T-A P-0.8 32F-A Y-0.8 0-DN BK-0.8 25D-A LU-0.8 19A-M OR-0.8 Not Used 36R-E P-0.8 36G-A P-0.8 Not Used 25A-A LU-0.8 0-DM BK-0.8 25B-A LU-0.8 25C-A LU-0.8

15 16 17 18 19 20 21 22 5 31 28 10 29 24 12 13 14 7 11 9 8

--------------

NEUTRAL 2 3 -- --- --- ---- --- --- --- --- --- --- --- --- --- --- --- --

BUSS-J1-ECA BUSS-J2-ECA

C B A 0SS 3 2 1

--------------

1 ---

AT 20°C

WARNING BUZZER - INSTRUMENT CLUSTER 1 - PARK BRAKE

JOYSTICK ONLY F-N-R SWITCH

13H-C OR-0.8

45

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

REVERSE 2 3 4 -- -- ---- -- ----- -- --- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --

28.8

YFR

44

AT 20°C

0-BS BK-1.0

7-6 1 58L BK-0.8 16-4 2 58-D W-0.8 58H-A W-0.8 7-2 3 9-2 4 0-B26 BK-0.8 10-3 5 31L Y-0.8 19A-J OR-0.8 10-20 6

FRAME 4

19T-A OR-0.8

25K LU-0.8 25L LU-0.8 25M LU-0.8 25N LU-0.8 25P LU-0.8 25J LU-0.8 25S LU-0.8 36T P-0.8 36R-C P-0.8 Not Used Not Used Not Used Not Used Not Used Not Used Not Used

1 --

AT 20°C (JOYSTICK) AT 20°C (SINGLE AXIS)

SPE

TRANSMISSION-03

0-DAV BK-0.8

25K LU-0.8 25L LU-0.8 25M LU-0.8 25N LU-0.8 25P LU-0.8 25J LU-0.8 25S LU-0.8 36T P-0.8 36R-C P-0.8

FORWARD 2 3 4 -- --- -- --- -- --- ---- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- --- -- -- -1 ---

29.9 27.4

29.3

P

A B

A7 B

0-AD BK-1.0

9-11 2 BUSS-J6-ECA 17-7 3 BUSS-J5-ECA 9-7 4 53C-A W-0.8 19-7 5 0-DU Bk-0.8 14-1 6 0-AF BK-1.0 14-5 7 0-AJ BK-1.0 14-4 8 0-AH BK-1.0 19P-A OR-0.8 0-AG BK-2.0

BC07E173-03A

53

TECM CLUTCH K4 KR K1 K3 KV K2 -----------

3 4

FRAME 3 BC07E173-02A

TRANSMISSION-02

46

18-5 18-4

CAN-H Y-0.8 CAN-L G-0.8

AT 20°C

A B A B

19P OR-0.8

SPL-A1

A B YPE A B

34

22.7

33R-A Y-1.0

FRAME 2

TRANSMISSION-01

15 16 17 18 19 20 21 22 5 31 28 10 29 24 12 13 14 7 11 9 8

1

57-C W-0.8

BC07E173-01A

Not Used 25K LU-0.8 25L LU-0.8 25M LU-0.8 25N LU-0.8 25P LU-0.8 25J LU-0.8 25S LU-0.8 36T P-0.8 32F Y-1.0 0-HE BK-1.0 25D LU-1.0 19A OR-1.0 Not Used 36R-A P-1.0 36G P-1.0 Not Used 25A W-0.8 0-HD BK-1.0 25B W-0.8 25C W-0.8

18-1 2

0-AE BK-1.0

A B YPP A B

19C-D OR-1.0

52A-B W-1.0

SPL-PED-BL Not Used A 49-N S-0.8 B 49-D S-0.8 C Not Used D 49-V S-0.8 E 49-S S-0.8 F

33R-C Y-1.0 0-HM BK-1.0

FRAME 1

20G-B W-0.8 13-2 BUSS-J9-ECA

RTHP

23

33 SPL-PINE

19C-D OR-1.0

0-AD BK-1.0

0-DU BK-0.8

53P-A W-0.8

58-B W-1.0 58-C W-0.8

19D-A OR-1.0

12ACC-B W-0.8 0-EC BK-0.8

49-F S-0.8 Not Used Not Used Not Used Not Used Not Used 57-B W-0.8 0-B5 BK-0.8 Not Used 19P-A OR-0.8

10 3 8 7 6 5 1 9 4 2

58-B W-1.0 58-C W-0.8

A6 B

10 A F2

32 10 3 8 7 6 5 1 9 4 2

49-S S-0.8 49-G S-0.8 49-T S-0.8 49-Q S-0.8 49-E S-0.8

23 22 CAB-E 23 22 ENG

SPL-A2

CAB-F FRONT

58-C W-0.8

24L W-0.8 21F-C W-0.8 24S W-0.8 24B W-0.8 24R W-0.8

6 1 5 3 4 2

SPL-A3

PRBF

1 2 YRC 1 2

Not Used 0-B1 BK-0.8 49-N S-0.8 Not Used Not Used Not Used Not Used Not Used 31L Y-0.8 19A-J OR-0.8

10 7 8 1 9 5 6 4 3 2

52 W-0.8 52A-A W-1.0

56 W-0.8

41

SPC

49-S S-0.8 49-G S-0.8 49-T S-0.8 49-Q S-0.8 49-E E-0.8

85 87A 87

43

10 7 8 1 9 5 6 4 3 2

5A

8-3 1 13H-C 0R-0.8 10-4 2 13H-B 0R-0.8 8-2 3 BUSS-J1-ECA BUSS-L1-ECA 12-13 4 22-2 5 BUSS-J11-ECA 19-2 6 BUSS-PRM-E 17-4 7 19S1-OR-1.0

WIF

6 1 5 3 4 2

54B W-1.0 53B W-1.0 53P-G W-1.0 57 W-1.0 58-B W-1.0

11 12 19 20 21

A B C A B C

38

56-A W-1.0

A B

30

K4

YFN

58 W-1.0

SPL-BCK-LGT2 A 49-E S-0.8 B Not Used C 49-J S-0.8 D 49-M S-0.8 E 49-K S-0.8 F 49-F S-0.8 G 49-Q S-0.8 H 49-T S-0.8 J Not Used K 49-G S-0.8 L Not Used M 49-S S-0.8

ECB 86 0-B7 BK-0.8 49-Q S-0.8 19P-C OR-0.8 52J W-0.8 Not Used 52M W-0.8 Not Used Not Used 52AU W-0.8 52J W-0.8

7 8 5 4 10 6 1 9 3 2 SFC

58L BK-0.8

31D Y-1.0 0-HV BK-1.0

PRM-D1

BUSS-PRM-PWR

12ACC-B W-0.8 0-EC BK-0.8 0-EB BK-0.8 0-EA BK-0.8

0-EC BK-0.8 0-EB BK-0.8 0-EA BK-0.8

B A

P Y R G BK

TRANS ECM DLY

0-EC BK-0.8 0-EB BK-0.8 0-EA BK-0.8

40 A F1

2 3

11 12 19 20 21

58-E W-0.8

39

L1-6 A

85 86

GH-1 B

22

35W W-0.8 0-BP BK-1.0 18J-H OR-1.0

54B-A W-0.8 53B-B W-0.8 53P-F W-0.8 57-A W-0.8

SRTD

EDC7 1

Not Used 0-B4 BK-0.8 49-J S-0.8 Not Used Not Used Not Used Not Used Not Used 53A W-0.8 53P-E W-0.8

10 7 8 9 6 5 4 1 3 2

85 87A 87

0-B7 BK-0.8 0-B11 BK-0.8 0-B20 BK-0.8 0-B26 BK-0.8 0-B6 BK-1.0

BUSS-J7-ECA BUSS-J6-ECA

17

CAB-E ENG

BUSS-J5-ECA BUSS-J6-ECA 10 7 8 9 6 5 4 1 3 2

A B C A B C

SPL-D26

33R-BY-1.0 0-HL BK-1.0

PRM-D ECA-L2 A Not Used C BUSS-J11-ECA

31

C – +

7 8 5 4 10 6 1 9 3 2

36

SRC

0-B6 BK-1.0

19

18

85 87A 87

SPL-D25 53P-C W-1.0 53C-A W-0.8

SHC

30

30

ECD K4

0-B20 BK-0.8 49-G S-0.8 58C W-0.8 58T W-0.8 Not Used 58-F W-0.8 Not Used Not Used 58C W-0.8 19C-D OR-1.0

7 8 5 4 9 6 1 10 3 2

19P-D OR-0.8 19P-E OR-0.8

37

40

0-AB BK-2.0

GH A

CB1B

CAB B+

SPL-EDC3

29

A B C A B C

ECA-F6

1

SPL-D2

21

1BC R-19.0

105 A

CB1A

20

21GA W-0.8 21H-A W-0.8 21F-A W-0.8 18R OR-2.0 18J-F OR-2.0 Not Used 18J-A OR-2.0 13C-A OR-1.0 21E-A W-0.8 20G-A W-0.8

3 4 11 13 14 16 18 21 27 31

K3

7 8 5 4 9 6 1 10 3 2

0-B7 BK-0.8 0-B11 BK-0.8 0-B20 BK-0.8 0-B26 BK-0.8 0-B6 BK-1.0

C – +

86

0-AN BK-1.0 52P W-1.0

28G W-1.0 0-BV BK-0.8

GHF1

3 4 11 13 14 16 18 21 27 31

30

33P Y-1.0 0-AL BK-1.0

1 2

GH FUSE

1.9 ±0.3

21G W-0.8 21H W-0.8 21F W-0.8 18R-A OR-2.0 18J-G OR-2.0 Not Used 18J OR-2.0 13C-B OR-1.0 21E W-0.8 20G-B W-0.8

ECD 86

52C W-0.8

86 85

150 A

1.9 ±0.3

FFH

2 3 5 6 8 9 10 11 12 13 17 29 32 34 35 36 37 40 42 48 75 77 78 79 89

0-B3 BK-0.8 49-M S-0.8 Not Used Not Used 54A W-0.8 Not Used Not Used Not Used Not Used 53P-D W-0.8

7 8 9 10 6 5 4 1 3 2

0-AK BK-1.0

GHF3

GHC

1-NC R-19.0 1-E R-19.0 1-Z R-8.0

1-E R-19.0

B A B A

A A1

SPL-NEU

1-Y R-19.0

B A WSH B A

28

0-DY BK-1.0 0-AK BK-1.0 0-BH BK-0.8 0-BG BK-0.8 0-BJ BK-0.8

10

12ACC-C W-0.8 19-1 BUSS-J5-ECC 13-17 2 BUSS-J6-ECC 14-2 3 43S-D W-0.8 12-2 4 19R-D OR-0.8 17-3 5 21D-B W-0.8 16-5 6 21K-A W-0.8 10-2 7 1-ND R-62.0 17-1 8 13V OR-0.8 9-3 9 25T-C LU-0.8 7-7 10 6-1 11 25T-B LU-0.8

20 A F2

BUSS-PRM-PWR 30 GHF4 87 115

PRM-C2

1CB R-19.0

EM

58T W-0.8 58H-A W-0.8

35

SPL-BCK-LT-GD2 A Not Used B 0-B2 BK-0.8 C 0-B3 BK-0.8 D 0-B4 BK-0.8 E 0-B5 BK-0.8 F 0-B6 BK-1.0 0-B26 BK-0.8 G Not Used H J 0-B20 BK-0.8 K 0-29 BK-0.8 L 0-B11 BK-0.8 M 0-B7 BK-0.8

27

19C-C OR-0.8 19C-B OR-1.0

0-BU BK-1.0

16

1-GC R-2.0

CBPW

1 1

1-CB-A R-19.0

B A

B 7.5 A B1 ECD-F1

18R-A OR-2.0 13V OR-0.8 Not Used 0-DD BK-0.8 13K-C OR-1.0

P-A3

40 A F1

ECC-F6

0-GB BK-1.0

0-EQ BK-0.8

GND-CAB-SPL2

30 87 87A 85 86

BUSS-L1-ECA

19U OR-0.8

30 87 87A 85 86

12

1-C R-8.0 CAB-PW

BAT IGN ST ACC

13D OR-1.0 13K-B OR-1.0 12ACC-B W-0.8

K1 ECB

P-A1

SPL-EDC1

B A6

0-EQ BK-0.8 0-DE BK-0.8 0-DF BK-0.8 0-DD BK-0.8 0-EC BK-0.8 0-EB BK-0.8 0-EA BK-0.8 0-DC BK-0.8

H G F E D C B A

5 1 3 2 4 6

SPL-HTR

7.5 A

11

21K-B W-0.8 21C W-0.8 Not Used 0-DE BK-0.8 25T LU-0.8

85 86

BUSS-PRM-B 20 A F2

1-GA R-3.0

See Note 1

PRM-A1

SPL-EDC4

13C-B OR-1.0

K2 ECB

PRM-C1 A C

18J-C OR-1.0 18J-B OR-1.0 0-BE BK-1.0 0-BF BK-1.0 18J-D OR-1.0 18J-E OR-1.0 0-BD BK-1.0 0-BC BK-1.0 28G W-1.0 0-BN BK-0.8 21H-A W-0.8 21F-B W-0.8 21E-A W-0.8 CAN-L G-0.8 CAN-H Y-0.8 28F W-0.8 21GA W-0.8 13M-A OR-0.8 35W W-0.8 24L W-0.8 0-BV BK-0.8 24S W-0.8 24R W-0.8 24B W-0.8 20G-A W-0.8

SPL-EDC2

B A9

13M OR-1.0

PRM-C

7 8 9 10 6 5 4 1 3 2

24

ECA-F9

STTR-GND

30 87 87A 85 86

Not Used 1A R-1.0 13K OR-1.0 21K W-0.8 12ACC W-0.8 Not Used SPL-ACC

SPL-CRK

13C OR-1.0

30 87 87A 85 86

40 A F1

1DM R-1.0

B A5

15

0-EB BK-0.8 13K-B OR-01.0

B A

3 4 2 5 1 6

26

A L1-6

DC4

85 86

0-ES BK-19.0

DC3

0-NB BK-62

ECA-L1 A 19S1-OR-1.0 C BUSS-J1-ECA

13

13D OR-1.0 13K-B OR-1.0

DC2

PRM-A

S-KEY

21K-A W-0.8

DC1

13D OR-01.0

ECC-F5

BUSS-J6-ECC BUSS-J5-ECC

M

10 A F2

7

TDM A 10 A L1-5

BUSS-PRM-E BUSS-PRM-B

3 4 2 5 1 6

SPL-D24

A 10 A L1-9

Not Used

1 2 3 4 5 6

1-BE R-19.0

SPL-PK1

0-DF BK-0.8

9

30 87 87A 85 86

E F G H

13K OR-1.0 13K-B OR-1.0

ECB 30 87 87A 85 86

194 S

B

0-NC BK-62

8

K3

13D OR-1.0 1DN R-1.0 0-DC BK-0.8 43S-D W-0.8 13K-A OR-1.0 Not Used 13K-C OR-1.0

BT4

BT3

6

21C-A W-0.8 21F W-0.8 21E W-0.8

5

1-BB R-8.0

1-NA R-62

1-NB R-62.0 1-BA R-13.0 1-NC R-19.0 1-ND R-62.0

BT1

14

PRM-B2

53A W-0.8 53B-B W-0.8 54A W-0.8 54B-B W-0.8 55A-A W-0.8 55B W-0.8

SFL

13H-D 0R-3.0

0-BT BK-1.0 0-BR BK-1.0 0-BAG BK-1.0

1A R-1.0 1DM R-1.0

SPL-DLY

0-EA BK-0.8

B A

0-B2 BK-0.8 49-K S-0.8 55B W-0.8 0-29 BK-0.8 Not Used SPL-D1 54B-C W-0.8 55A-B W-0.8 Not Used SPL-RTT 55A-C W-0.8 53P-B W-0.8

7 8 5 4 10 6 1 9 3 2

36F P-1.0

40 A F1

13H-D 0R-3.0

SPL-DLY-RL

13H-D 0R-3.0

85 86

4

BT2

PRM-B1 A Not Used C 13H 0R-3.0

13C-A OR-1.0 13M-A OR-0.8

B B

A A2

PRM-B

7 8 5 4 10 6 1 9 3 2

DISC ENG-D

ECD-F2

3

21C-B W-0.8 21D-A W-0.8 Not Used 21H W-0.8 21G W-0.8

30 87 87A 85 86

A A

13C OR-1.0 13M OR-1.0

B 30 A B2

30 87 87A 85 86

D+ AB+ 1-BA R-13.0 R B+

SPL-CR 21C W-0.8

PILOT CONTROL - RIDE CONTROL - FAN CONTROL

25

18J-K OR-3.0

F9/F10 ECB

14 LG-1.0

AD

21H W-0.8 21G W-0.8 21F W-0.8 21E W-0.8 13C OR-1.0 13M OR-1.0 18R-A OR-2.0

21H W-0.8 21G W-0.8 21F W-0.8 21E W-0.8 13C OR-1.0 13M OR-1.0 18R-A OR-2.0

ENG CAB-E

13C OR-1.0 13M OR-1.0 0-BV BK-0.8 28G W-1.0

64C OR-0.8

0-GB BK-1.0

SPL-4 21D-B W-0.8

1-GB R-2.0

21D W-1.0

0-BX BK-2.0

SRC-1

14-A LG-0.8 21C-C W-0.8 21D-C W-0.8

26 26 1 1 15 15

18R OR-2.0 0-BN BK-0.8 28F W-0.8

14 LG-1.0

0-BW BK-2.0

1 2

RETURN TO TRAVEL • RETURN TO DIG • PIN ENGAGE

0-BAE BK-1.0

19R-D OR-0.8

21H W-0.8 21G W-0.8 21F W-0.8 21E W-0.8 18R-A OR-2.0 18R OR-2.0 0-BN BK-0.8 28F W-0.8 13C OR-1.0 13M OR-1.0 0-BV BK-0.8 28G W-1.0

0-BAC BK-2.0

215F 216F

P-C1 P-C2 P-C4 P-C3

86 85

75

2

1-BB R-8.0 1-Z R-8.0

21H W-0.8 21G W-0.8 21F W-0.8 21E W-0.8 18R-A OR-2.0 18R OR-2.0 0-BN BK-0.8 28F W-0.8 13C OR-1.0 13M OR-1.0 0-BV BK-0.8 28G W-1.0

0-BW BK-2.0 0-BX BK-2.0

30 193 87 195

ENGINE CONTROLLER

21H W-0.8 21G W-0.8 21F W-0.8 21E W-0.8 18R-A OR-2.0 1-NC R-19.0 1-Z R-8.0

13H-B 0R-0.8 13H-C 0R-0.8

1

1-NC R-19.0 1-Z R-8.0

0-BK BK-1.0

POWER RELAY MODULES - COLD STARTING SYSTEM 1-NC R-19.0 1-Z R-8.0

0-BP BK-1.0

STARTING AND CHARGING SYSTEM

WIRE SIZE

T . . TAN U . . . BLUE W . . WHITE Y . . . YELLOW

NOTE 1: Electrical Center C - Power Stud NOTE 2: Indicates Modulated and Current Controller.

NOTE 3: Disconnect when Backup Alarm Disable Switch is installed. Applicable only on TUV Road Approved Machines.

ELECTRICAL SCHEMATIC 621E WHEEL LOADER Additional copies of this Hydraulic and Electrical Schematic can be ordered through Technical Publications Distribution System. The part number is 5-7560 Copyright © 2007. CNH America, LLC. All Rights Reserved.

BC07E173-00A

FRAME 17

FRAME 18

HOOD LIFT 142

132

1 2

SC

124

61A-B W-0.8 18N-A OR-0.8 49A S-0.8 HVAC1 C B A

LSPK 1 2

1 2

125

23-2 7 24-1 8 SPL-BLWR

18N-B OR-3.0 0-ED BK-3.0

HVAC2

1

16-3 3 0-EE BK-0.8 0-EP BK-0.8 13-11 4 0-DT BK-0.8 16-12 5 22-4 6 0-DJ BK-0.8 4-5 7 0-DU BK-0.8 18-3 8 0-DH BK-0.8

18-2 18K-A OR-0.8 14-3 2 BUSS-J7-ECC 25-1 3 19Y OR-1.0

22-6 1 BUSS-J16-ECA 17-5 2 BUSS-J18-ECA

FRAME 19

FRAME 20

BC07E173-18A

BC07E173-19A

1

FRAME 21 BC07E173-20A

18N OR-3.0

1

B C1

23-3 9 24-2 10

ECA-F11

ACT

130

A L2-1

25 A

2

49A S-0.8 12-18 1 2-5 2 BUSS-J11-ECA 16-9 3 BUSS-J12-ECA 19-6 4 0-DJ BK-0.8 11-7 5 BUSS-J15-ECA 20-1 6 BUSS-J16-ECA

0-ED BK-3.0

GND-CAB-SPL

0-DK BK-0.8

B C5

Not Used Not Used 0-DG BK-1.0 0-DT BK-0.8 0-DL BK-0.8 0-DK BK-0.8 0-DJ BK-0.8 0-DU BK-0.8 0-DH BK-0.8

18M OR-0.8

0-EE BK-0.8 0-EM BK-0.8 0-EP BK-0.8

7.5 A

A B C D E F G H I K L M

61C-A OR-1.0

R-0.8 W-0.8 G/W-0.8 Not Used Not Used

1 2

19W OR-3.0

A A B B

FRAME 22 BC07E173-21A

BC07E173-22A

GROUND CONNECTIONS 0-BA BK-5.0

RIGHT CONSOLE • GND-CAB1 ECC

K1 30 87 87A 85 86

4 5 2 10 11 3 12 13 6 1 14 7 8 9 4 5 2 10 11 3 12 13 6 1 14 7 8 9 DNS49 K-0.5 DNS48 R-0.5 DNS50 OR-0.5 Not Used DNS51 ORW-0.5 DNS52 BK-0.5 DNS53 N-0.5 DNS54 S-0.5 DNS55 U-0.5 Not Used DNS56 WG-0.5 DNS57 WU-0.5 DNS58 WR-0.5 DNS59 WBK-0.5

RSPK

1-1 12ACC-C W-0.8 2-6 2 BUSS-PRM-E

BC07E173-17A

HEATING, VENTILATION, AND AIR-CONDITIONING

0-DK BK-0.8

DIA

3-1 1 20G-B W-0.8 21-1 2 18K-A OR-0.8 19-8 3 0-DH BK-0.8 3-4 4 CAN-L G-0.8 3-3 5 CAN-H Y-0.8 7-5 6 CAN-LD G-0.8 7-4 7 CAN-HD Y-0.8 CAN-LF G-0.8 10-13 8 10-14 9 CAN-HF Y-0.8 9-5 10 CAN-LG G-0.8 9-6 11 CAN-HG Y-0.8

BC07E173-16A

19N OR-1.0

61A W-1.0 61R W-1.0

129

2

CL 1 2

ECA-F15

A L2-7

FRAME 16

65R OR-0.8 0-PB BK-0.8 Not Used Not Used Not Used Not Used 65L OR-0.8 0-PA BK-0.8

1

A A B B

A L2-5

B C7 7.5 A

A L1-4

10 12-14 0-MA BK-1.0 11 12-9 0-B8 BK-0.8 12 19-5 0-DT BK-0.8 13 5-7 49-T S-0.8

1-8 1 1-ND R-62 10-9 2 35X Y-0.8 1-5 3 19R-D OR-0.8 2-7 4 19S1-OR-1.0 20-2 5 BUSS-J18-ECA 10-6 6 BUSS-J4-ECA 4-3 7 BUSS-J5-ECA

0-BZ BK-1.0 0-ND BK-62

0-BM BK-1.0

3

ECA-F4

9-1 1 0-BY BK-1.0 5-13 2 0-BS BK-1.0

1 2 3 4 5 6 7 8

RAD-J2 SPK

SPL-SEC-STR

7.5 A

B A4

140M

1 2 3 4 5 6 7 8

12V-H OR-0.8 SPL-RAD ROOF CAB-RF

0-DV BK-3.0

119

12V-HB OR-0.8 Not Used Not Used 12V-HA OR-0.8 0-EN BK-0.8

BUSS-J9-ECC

19M OR-0.8

M

112

0-CB BK-1.0 0-CA BK-1.0 0-CC BK-1.0 0-CF BK-1.0 Not Used 0-CD BK-1.0

A B C D E F

4 5 6 7 8

A L1-9

1 2

ECA-F17

21D-B W-0.8 68L-C OR-1.0

1 2

63W-A W-1.0 0-B BK-1.0

A B C D E

4 5 6 7 8

M M N N

PR

127

126

10 A

M

19RR OR-0.8

0-BM BK-1.0 0-BY BK-1.0 Not Used 0-BS BK-1.0 0-B BK-1.0 0-BL BK-1.0 SPL-ENG-GRD A B C D E F

63H-C W-0.8 63L-C W-0.8 0-EE BK-0.8 58-D W-0.8

0-DH BK-0.8 18K-A OR-0.8 CAN-HB Y-0.8 CAN-LB G-0.8 20G-B W-0.8

RAD-J1 RAD

Y/BK-0.8 U/BK-0.8 R/BK-0.8 W/BK-0.8 BK/W-0.8 Not Used OR/W-0.8 Y-0.8 U-0.8

12V-B OR-1.0

ECC-F9

1 2

CAB-E ENG

B A9

SPL-CAN-DIAG-L

1 2 3 4 5 6 7 8 9 10 11 12 13 14

B B6

10 A

ECD-F6 0-EN BK-0.8

61C-A OR-1.0 61R W-1.0 61A W-1.0

2 2 29 29 30 30

B AB

1 2 3 4 5 6 7 8 9 10 11 12 13 14

A A6

61C OR-0.8 61R-B W-0.8 61A-B W-0.8

0-DV BK-3.0

RAD-J3

HVAC-CAN1

RWW 1 2

A B C

PO2 A B C

19W OR-3.0

12V-F OR-1.0

123

CAN-HK Y-0.8 CAN-LL G-0.8 Not Used A B C

ECD-F5

B B5

15 A

CAN2 CAN

10 A

ECC-F8

Not Used

A A5

12V-A OR-1.0

111

ENG

12V OR-1.0

B B4

A L1-B

CAB-E

68W-A W-1.0 63W-A W-1.0

10 A

ECD-F4

ECC-F7

24 24 25 25

0-B23 BK-0.8 12-12 6 49-C S-0.8 12-15 7 11-8 8 BUSS-J14-ECA 22-3 9 BUSS-J12-ECA

30 87 87A 85 86

ABOVE PEDESTAL PIVOT • GND-PDST

60U W-1.0 19Y-A OR-1.0 0-B22 BK-1.0 0-B25 BK-1.0 59U W-1.0

0-BA BK-5.0

RIGHT CONSOLE • GND-CAB2 BELOW PEDESTAL PIVOT CAB FLOOR • GND-PDST2 0-AP BK-5.0 FUEL FILTER HEAD BRACKET • GND-WIF REAR CHASSIS GROUND WELD STUD • GND-S1

133

131

DNS59 WBK-0.5 DNS58 WR-0.5 DNS57 WU-0.5 DNS56 WG-0.5 Not Used DNS60 OR-0.5

DNS49 K-0.5 DNS48 R-0.5

6 5

SPL-CAN-HVAC CAN-HA Y-0.8 CAN-LA G-0.8 Not Used SPL-CAN-HVAC-L

A A B B C C

SPL-CAN-DIAG

19-3 0-EE BK-0.8 5-2 4 58-D W-0.8 1-6 5 21D-B W-0.8

M

CAN-H Y-0.8 CAN-L G-0.8

224F

110

A A4

12V-E OR-1.0

1-ND R-62

A A

12V-D OR-1.0

SPL-12V

BUSS-J8-ECC

51-B W-1.0

A B C

18M OR-0.8 61C OR-0.8 Not Used 0-DJ BK-0.8 61R-B W-0.8

30 87 87A 85 86

PO1 A B C

A L1-7

Not Used 0-CA BK-1.0 0-CB BK-1.0

122

B B7

122

1 2 3 4 5 6 7 8 9 10 11 12

SPL-3

B C3 10 A

A L2-3

BUSS-J13-ECA

113

SPL-C3

118

SSS

M

FWW A B C D E F

19R-C OR-1.0 51-A W-1.0 19S1-X R-1.0 0-CE BK-1.0 Not Used Not Used 19M-C OR-1.0 35X-D Y-1.0 51P-A W-1.0

15 A

CAN-LC G-0.8

23-1 12

A L2-2

ECA-F12

A B C D

CAN-LE G-0.8 SPL-CAN-TRANS-L CAN-LD G-0.8

A A7

75 A

0-MA BK-1.0

68W-A W-1.0 0-BL BK-1.0

ECA-F13

19J OR-0.8 B C2

A B C D

12V-G OR-1.0

CAN-LG G-0.8 SPL-CAN-L CAN-LF G-0.8

RWMG

SPL-RWW

A B C D E F

PSS N.O. A A 51P-A W-1.0 COM B B 0-CC BK-1.0 N.C. C C 35X-A Y-1.0

117

ECD-F7

B A7

Not Used 68L-A OR-1.0 19K-D OR-1.0 68C-A OR-1.0

Not Used 19K-D OR-1.0 68C-A OR-1.0 68L-A OR-1.0

H J K L

CNV

ECD

K5 30 87 87A 85 86

19N OR-1.0

H J K L

CAB-RF ROOF

68W W-0.8 63W W-0.8

10 A

AT 20°C

109

128

B C6

Not Used 19K-C OR-1.0 68C OR-1.0 68L-B OR-1.0

PRM-E2

20 A F2

SPL-SS

51-C W-1.0 0-CF BK-1.0

FWMG

0-B23 BK-0.8 49-C S-0.8 19K-B OR-0.8 Not Used Not Used 68W W-0.8 68C OR-1.0 Not Used 19K-A OR-1.0 68L OR-1.0

19K OR-1.0

YSS

0-ND BK-62 242F

0-DL BK-0.8 12ACC-C W-0.8

SSM A 1 B 2

RWM

B A

10 A

7 8 5 4 10 6 1 9 3 2

20 A F1

BUSS-PRM-E

116

M

A A

85 86

CAN-HC Y-0.8

ECA-F16

7 8 5 4 10 6 1 9 3 2

107

A B C D

CAN-HE Y-0.8 SPL-CAN-TRANS CAN-HD Y-0.8

TR-SS SS-TR

39.3

SRWP

19M-C OR-1.0 19R-C OR-1.0 35X-C Y-1.0 0-CD BK-1.0 19S1-X R-1.0 Not Used

115

A B C D

0-B8 BK-0.8

A B C D E F

121

A L2-6

63C3 W-0.8 63C2 W-0.8 63C W-0.8 63LC W-0.8 19J-F OR-0.8

35X-B Y-1.0 19S1-E OR-1.0

A B C D E F

AIR-CONDITIONING COMPRESSOR

1 2 3 4 5 6

0-DK BK-0.8

63H-A W-0.8 63L-A W-0.8 19J-A OR-0.8 63C W-0.8

SPL-WLS

19M-A OR-1.0 19R-A OR-1.0 35X-B Y-1.0 0-HP BK-1.0 19S1-E OR-1.0 Not Used

CIGAR LIGHTER

0-EK BK-1.0

30 87 87A 85 86

19S1 OR-1.0

19M-A OR-1.0 19R-A OR-1.0

3 4 6 26

19L-A OR-2.0 19L-B OR-2.0 0-EJ BK-1.0 Not Used 12V-C OR-2.0 0-ER BK-1.0

0-EK BK-1.0

30 87 87A 85 86

SPL-2

FWM

SPL-WHS

ECD

K2

106

Not Used Not Used Not Used

63L-B W-0.8 Not Used 63C3 W-0.8 63HC-A W-0.8 19J-G OR-0.8

3 4 6 26

19R-E OR-0.8 35X Y-0.8

0-EJ BK-1.0 0-ER BK-1.0

105

30 87 87A 85 86

19M OR-0.8

19RR OR-0.8 Not Used 19R OR-0.8

SPL-CNV

0-EL BK-1.0

K-WCO 30 87 87A 85 86

DM A A B B C C

CAN-HG Y-0.8 SPL-CAN CAN-HF Y-0.8

0-EL BK-1.0

SPL-HC

CAB-T TRANS

PRM-E PRM-E1 A Not Used C 19L OR-2.0

AIR SEAT

0-EM BK-0.8

SPL-PK3

114

CAN-LC G-0.8 CAN-HC Y-0.8

19J-E OR-0.8 63H-B W-0.8 63C2 W-0.8 63HC-B W-0.8 19J-D OR-0.8

108

120

CAN-LN G-0.8 CAN-HM Y-0.8

30 87 87A 85 86

19J-B OR-0.8 19J OR-0.8 19J-C OR-0.8 19J-A OR-0.8

1 2 3 4 5 6 7 8 9 10 11 12

RADIO / POWER CONVERTER

TRAN-E

0-CE BK-1.0

30 87 87A 85 86

104

J K L M

ECD

K1

Not Used 0-DT BK-0.8 63LC W-0.8 Not Used 19J-B OR-0.8 Not Used 63W W-0.8 49-T S-0.8 63HC W-0.8

ENG-T

COMMUNICATION

0-HP BK-1.0

1 1

0-BZ BK-1.0 SFWW

19J-C OR-0.8

19R-D OR-0.8

SPL-FW

SECONDARY STEERING

0-DG BK-1.0

CAB WINDOW WASHER AND WIPER SYSTEM

6 5 4 3 2 1

M. LOCK070-PF

ECC

60D W-1.0 19Y-B OR-1.0 0-B12 BK-1.0 0-B16 BK-1.0 59D W-1.0

M

30 87 87A 85 86

K2

0-AP BK-5.0

30 87 87A 85 86

SENSOR GROUND • GND-ENG6 ENGINE BLOCK NEAR OIL FILTER

FRONT CHASSIS GROUND WELD STUD • GND-S2

SENSOR GROUND • GND-ENG7 ENGINE BLOCK NEAR OIL FILTER

143

M. LOCK070-PM

KOSTAL

134 DNS61 S-1.0 DNS62 GBK-1.5 DNS63 LUBK-1.5 DNS64 LUR-1.5 Not Used

S3-S

135

S2-S

1

19Y-C OR-1.0 60D W-1.0 59D W-1.0 60U W-1.0 59U W-1.0

35 36 37 38 39

35 36 37 38 39

19Y-D OR-1.0 60D-A W-1.0 59D-A W-1.0 60U-A W-1.0 59U-A W-1.0

REAR CHASSIS BELOW CAB • GND-FC

RIGHT-HAND CONSOLE • GND-CAB3D

1

A A B B C C

RIGHT CONSOLE • GND-CAB5 3 2

GND-ENG2 ENGINE BLOCK NEAR STARTER RIGHT CONSOLE • GND-CAB4

CAB-E ENG

1 1 2 2

SPL-HOOD

DNS67 G-0.5

GND-GH1 ENGINE BLOCK NEAR GRID HEATER

RIGHT CONSOLE • GND-CAB3

LU N

M

19Y OR-1.0

HDM

138

1 2 3 4 5

139

141 140

GND-CAB6 RIGHT-HAND CONSOLE

145

19Y OR-1.0

21-3

GND-ENG4 ENGINE BLOCK NEAR STARTER NOTE: THIS GROUND USED ONLY ON EUROPEAN MACHINES

GND-ENG1 ENGINE BLOCK NEAR STARTER

1

FRAME 24

FRAME 23

0-BAG BK-1.0 0-BR BK-1.0 0-BT BK-1.0

137

CLOSED ABOVE 5 ±1 C° OPEN BELOW 0 ±1 C°

GND-ENG4 ENGINE BLOCK NEAR STARTER

0-ND BK-62 0-CE BK-1.0 0-BZ BK-1.0 0-BM BK-1.0 0-EL BK-1.0 0-EK BK-1.0 0-ER BK-1.0 0-EJ BK-1.0 0-ED BK-3.0 0-DV BK-3.0 0-DG BK-1.0 0-BAG-N BK-1.0

2 1

DNS51 ORW-0.5 DNS53 N-0.5 Not Used Not Used Not Used

1 2 3 4

DNS54 S-0.5 DNS55 U-0.5

DNS70 BK-0.5 DNS69 YBK-0.5

1 2 3 4 5 0 1 2 3 4

DNS72 OR-0.5 DNS68 Y-0.5 Not Used DNS71 BK-0.5

DNS74 LU-2.5 DNS61 S-1.0 DNS62 GBK-1.5 DNS63 LUBK-1.5 DNS73 UR-2.5

DNS6 Y-0.5

0-DS BK-1.0 0-DR BK-1.0 0-B13 BK-1.0 0-B10 BK-1.0 0-B6 BK-1.0 0-BAR BK-1.0 0-BAR BK-1.0 0-BJ BK-0.8 0-BH BK-0.8 0-BG BK-0.8 0-BAE BK-1.0 0-BU BK-1.0 0-BK BK-1.0 0-DA BK-0.8 0-AB BK-1.0 0-AG BK-2.0 0-AK BK-1.0 0-DP BK-0.8 0-DY BK-1.0 0-DAV BK-0.8 0-DQ BK-0.8 0-BAC BK-2.0 0-BP BK-1.0 0-ES BK-19.0 0-EQ BK-0.8 0-BW BK-2.0 0-BX BK-2.0 0-GB BK-1.0

DNS-HVAC 2-S

22-10 2

CONNECTION NEAR SS MODULE GROUND • GND-SSMOD

136

S1-S

DNS75 BK-2.5 DNS74 LU-2.5 1

HD

M

DNS-HVAC 1-S

22-8

2

DNS65 UR-2.5 DNS66 BK-2.5

NEAR AIC (WITHIN 4 INCHES) • GND-PDST1

ENGINE BLOCK NEAR STARTER • GND-ENG3

0-B10 BK-1.0

A B C

CONNECTION NEAR MOTOR/PUMP GROUND • GND-SSCHAS

144

19Y-A OR-1.0 19Y-B OR-1.0 19Y-C OR-1.0

DNS67 G-0.5 DNS76 OR-0.5 DNS69 YBK-0.5

0-B12 BK-1.0 A 0-B16 BK-1.0 B 0-B22 BK-1.0 C 0-B25 BK-1.0 D 0-B10 BK-1.0 E Not Used F SPL-HOOD-GRND

1 2 3 4 5

BC07E173-23A

CASE ONLY

NH ONLY

FRAME 25 BC07E173-25A

BC07E173-24A

COMPONENTS FRAME - COMPONENT NUMBERS

16 - 104. Front Wiper High Speed Relay 16 - 105. Wiper Cutout Relay 16 - 106. Front Wiper Low Speed Relay 16 - 107. Rear Wiper and Washer Switch 16 - 108. Front Wiper and Washer Switch 16 - 109. Front Wiper Motor 16 - 110. Front Wiper Motor 16 - 111. Rear Washer Motor 16 - 112. Rear Washer Motor 16 - 113. Diodes 17 - 114. Secondary Steering Diodes 17 - 115. Secondary Steering Solenoid 17 - 116. Secondary Steering Module 17 - 117. Secondary Steering Motor 17 - 118. Secondary Steering Pressure Switch

FRAME - COMPONENT NUMBERS

23 - 131.

23 - 132.

23 - 133.

23 - 134.

23 - 135.

23 - 136.

23 - 137.

23 - 138.

23 - 139.

23 - 140.

23 - 141.

Actuator Driver Electronic Water Valve Blower Fan Resistor Blower Motor Thermostat Fan Speed Switch Air Conditioning Switch Control Panel Lamps Water Valve Potentiometer Air Recirculating Switch

24 - 142.

24 - 143.

24 - 144.

24 - 145.

Hood Up Relay Hood Down Relay Hood Switch Hood Motor

18 - 119. Diagnostic Connector 19 - 120. Power Relay Module E 19 - 121. Power Converter - 24 to 12 Volt 19 - 122. 12 Volt Power Outlets (Option) 19 - 123. Radio 19 - 124. Right Speaker 19 - 125. Left Speaker 20 - 126. Air Seat 21 - 127. Cigar Lighter 22 - 128. Air Conditioning Clutch Relay 22 - 129. Air Conditioning High-Low Pressure Switch 22 - 130. Air Conditioning Compressor Clutch

CIRCUIT DIAGRAM LEGEND SPL-00

Frame and Wire Tag Number where circuit continues.

FRAME - WIRE

SHOWS CIRCUIT SHOWS CROSSING CIRCUIT SPLICE NOT CONNECTED CONNECTION

WIRE TAGS 00-0 1 1 00-0 WIRE

Wire Tag assigned to wire in Frame.

CIRCUIT CONTINUATION

54 COMPONENT NUMBER

MALE TERMINAL

FEMALE TERMINAL

INDICATES EXTERNAL GROUND GROUND

WIRE IDENTIFICATION INDICATES INTERNALLY GROUNDED COMPONENT

FEMALE CONNECTOR CONNECTOR NUMBER CONNECTOR IDENTIFICATION

MALE CONNECTOR 1 1 2 2 3 3

45E 45D RELAY REAR

4 4 18 18 27 27

INDICATES PARTIAL CONNECTOR NOT ALL CONNECTIONS ARE SHOWN

BK . BLACK DU . DARK BLUE G. . . GREEN K . . . PINK LG. . LIGHT GREEN LU . . LIGHT BLUE N . . . BROWN

NOTES

702A G-1.0 WIRE NUMBER WIRE COLOR

OR . ORANGE P . . . PURPLE (Violet) R . . . RED S . . . GREY

WIRE SIZE

T . . TAN U . . . BLUE W . . WHITE Y . . . YELLOW

NOTE 1: Electrical Center C - Power Stud NOTE 2: Indicates Modulated and Current Controller.

NOTE 3: Disconnect when Backup Alarm Disable Switch is installed. Applicable only on TUV Road Approved Machines.

ELECTRICAL SCHEMATIC 621E WHEEL LOADER Additional copies of this Hydraulic and Electrical Schematic can be ordered through Technical Publications Distribution System. The part number is 5-7560 Copyright © 2007. CNH America, LLC. All Rights Reserved.

BC07E173-00A

PILOT CONTROLS

MAIN HYDRAULIC PUMP AND RESERVOIR

7

EQUIPMENT VALVE F3-C7

a1

7A

F3-C4

C1

F3-C2

P

C3 C4 C5 C6 C7 C8

3

F11-C5

C2

F1-C2

C3

F11-C2

T

6

10

a2

F3-C13

C4

F3-C10

C5

A1

F3-C14

SEE NOTE 1

F4-C1

a3

F1-C1

B1

C1

C2

F2-C7

C12

a3

B2

A3

BUCKET CYLINDERS - XT MODELS

F2-C9

a4

8M

8N

8G

8M

8P

B3

8G

A4

15

8S

B4

11

8G

MP

F2-C2

S 8F 8D

C6

C7 C6

b3

F3-C8

C2

F3-C9

12

R

L

F1-C3

T

C8

F4-C2

C9

F3-C8

C2

F3-C9

13 16A

8C 16B LIFT CYLINDERS

8H

F4-C3

C1

8E

8H

8L 8J

8J

8J

8J

8J

14

L a4

C1

BUCKET CYLINDER - Z-BAR and XR MODELS

8K L1

A2

C11

8A

P

7D

S

F5-C6

16 C5

b2 3C

a1

F5-C3

a2

8M

F2-C3

S

F5-C5

8B

F3-C5

3B

STEERING

8R

7C

2

LS

C10

F5-C2 F5-C1

8G

5

C2

C7

9

8

C4

3A

C8

Ø1.8

b1

X

C9

SX

F12-C1

C2

4 B

C1

7B C1

CYLINDERS

C3

6 F3-C6 F6-C3 F8-C2 F10-C1 F11-C1 F12-C2

EQUIPMENT VALVE

C3

F3-C11

C4

F10-C3

C5

F10-C2

C6

F3-C12

16C

b1

1

7E

1 b4

C13

P

F2-C4

b2 C14 F4-C4

8M

8M

b3 C3

F2-C6

b4 C4

F2-C8

8M

C1

F2-C10

T

LS F11-C3

F11-C4

C2

17 F1-C4

C10

C3

SEE NOTE 2 FRAME 1

FRAME 2

FRAME 3

BC07G260-01A

BRAKES

BC07G260-5A

RIDE CONTROL (OPTIONAL)

FAN REVERSING VALVE (OPTIONAL)

AUXILIARY STEERING (OPTIONAL)

BC07G260-6A

COUPLER LOCKING CYLINDERS AND VALVE (OPTIONAL)

26

S1

DS2

C4

36

C3

39

23A

Ø1.20

BR3

P

M2

23F

F7-C1

C1

P

C2

41

M2

39C

38

21 35

F3-C3

41B

37A 23E 23D

C1

2.2 Ø= 4.5 l/m

29

X2

A

T

B

F1-C6

F5-C5 F5-C4

M1

19

44

39B

T

Ø 0.31

C5 C5

41D

23C

CF

39A 42B

BR1

ST

45

C5

42A

41C

41A

F3-C1

LS SLS

42

40

P

39B

37

36A

23B

MX

F6-C1

F6-C2

LOCK UNLOCK

S3

28

Ø0.60

20

FRAME 6

BC07G260-04A

25 27

23

BC07G260-03A

HYDRAULIC OIL COOLER AND FAN DRIVE MOTOR

24

22

FRAME 5

FRAME 4

BC07G260-02A

42C

39D T

46

P

T

M1

BR2

34

F1-C5

C2

C1

37B

DS1

F1-C7

SEE NOTE 3 43

18

30

S2

31

33

T

N

C1 F8-C1

F2-C1

F1-C8

C2

C1

1

1

1

32 FRAME 7

FRAME 8

FRAME 9

BC07G260-07A

BC07G260-08A

FRAME 10 BC07G260-9A

FRAME 11

FRAME 12

BC07G260-10A

BC07G260-11A

BC07G260-12A

COMPONENTS FRAME - COMPONENT NUMBERS

FRAME - COMPONENT NUMBERS

FRAME 1 COMPONENTS 1 - 1. Hydraulic Reservoir 1 - 2. Breather - Hydraulic Reservoir Check Valve (0.03 Bar/0.43 PSI) Relief Valve (0.35 Bar/5.07 PSI) 1 - 3. Implement Hydraulic Pump Displacement ( 90 cc rev/5.5 cu in rev) Cutoff (280 Bar/4061 psi) Delta (24 Bar/348 psi) 1 - 3A. Compensator Differential Spool 1 - 3B. Compensator High Pressure Cutoff Spool 1 - 3C. Control Piston with Spring 1 - 4. Hydraulic Filter Assembly Bypass (3.4 Bar/50 psi) Warning Switch (2.7 Bar/40psi)

FRAME 3 COMPONENTS 3 - 8. Equipment Valve: 2-spool 3 - 8A. Steering Pressure Relief (217 Bar/3147 psi) 3 - 8B. Pilot Pressure Reducing Valve (30 Bar/435 psi) 3 - 8C. Pilot Pressure Relief (45 Bar/653 psi) 3 - 8D. Steering Priority Spool 3 - 8E. Loader Main Relief (227 Bar/3292 psi) 3 - 8F. Load Sense Bleed Down Orifice (0.7 L/min) 3 - 8G. Flow Compensator Spool 3 - 8H. Regeneration Check Valve 3 - 8J. Circuit Relief Valve with Anti-Cavitation (290 Bar/4206 psi) 3 - 8K. Circuit Relief Valve with Anti-Cavitation (XT Models: 183 Bar/2654 psi) (Z-Bar Models: 290 Bar/4206 psi) 3 - 8L. Regeneration Relief Valve (6.7 Bar/97 psi) 3 - 8M. Shuttle Check Valve 3 - 9. Load Sense Pressure Test Port 3 - 10. Steering Pressure Test Port

FRAME 2 COMPONENTS 2 - 1. Hydraulic Reservoir 2 - 5. Pilot Pressure Accumulator Pre-charge (13.8 Bar /200 psi) Capacity (0.75 liter/45.8 cu in) 2 - 6. Pilot Pressure Test Port 2 - 7. Controller (4-Spool Valve) 2 - 7A. Pilot ON/OFF Solenoid 2 - 7B. Bucket Control 2 - 7C. Lift Control 2 - 7D. Auxiliary Control #1 2 - 7E. Auxiliary Control #2

CIRCUIT CONTINUATION

HYDRAULIC SYMBOLS PRESSURE

54 CHECK VALVE

36D COMPONENT NUMBER

FILTER OR SCREEN

CIRCUIT

LOAD SENSE

COMPONENT

PILOT PRESSURE

Frame Number and Circuit Number where Circuit continues.

FRAME - CIRCUIT

SHOWS CIRCUIT CROSSING NOT CONNECTED

SHOWS CIRCUIT CONNECTED

RESTRICTOR

OIL COOLER

DIRECTION OF FLOW

LINE TYPES

CIRCUIT TAGS F4-C3 C10 F1-C3 C6 CIRCUIT

Circuit Number assigned to Circuit in Frame.

FRAME 4 COMPONENTS 3 - 8G. Flow Compensator Spool 3 - 8J. Circuit Relief Valve with Anti-Cavitation (290 Bar/4206 psi) 4 - 8M. Shuttle Check Valve 4 - 8N. Auxiliary Valve #1 4 - 8P. Auxiliary Valve #2 4 - 8R. Pressure Differential Valve (40 Bar/580 psi) 4 - 8S. End Cover 4 - 11. Pump Pressure Test Port

FRAME - COMPONENT NUMBERS

FRAME 5 COMPONENTS 512. Bucket Cylinders Bore: 114 mm (4.49 in) Rod: 63.5 mm (2.5 in) Stroke: 820 mm (32.28 in) 513. Bucket Cylinder Bore: 127 mm (5 in) Rod: 76.2 mm (3 in) Stroke: 619.7 mm (24.5 in) 514. Lift Cylinders Bore: 120.9 mm (4.9 in) Rod: 63.5 mm (2.5 in) Stroke: 787.7 mm (31 in) FRAME 6 COMPONENTS 615. Steering Cylinders Bore: 76.2 mm (3 in) Rod: 44.5 mm (1.75 in) Stroke: 486.9 mm (19 in) 616. Steering Control Valve Displacement: 983 cc/rev (60 cu in/rev) 616A. Circuit Relief Valve (290 Bar/4206 psi) 616B. Gerotor Pump 616C. Steering Spool 617. Back Pressure Valve (8-10 Bar/115-145 psi)

FRAME - COMPONENT NUMBERS

FRAME 7 COMPONENTS 71. Hydraulic Reservoir 718 Rear Brakes Modulation Pressure: (87 to 94 Bar/1262 to 1363 psi) 719. Rear Brake Pressure Test Port 720. Front Brake Pressure Test Port 721. Front Brake Modulation Pressure: (90 to 97 Bar/1350 to 1406 psi) 722. Parking Brake Cylinder 723. Brake Valve and Accumulator Charging Valve Cut-in Pressure: (157 to 167 Bar/2277 to 2422 psi) Cut-out Pressure: (190 to 196 Bar/2755 to 2843 psi) 723A. Park Brake Solenoid 723B. Front Brake Valve 723C. Rear Brake Valve 723D. Accumulator Isolation Check Valve 723E. Accumulator Charging Spool 723F. Priority Spool 724. Parking Brake Accumulator Pre-charge (96 Bar/1392 psi) Capacity: 0.16 liter/9.7 cu/in) 725. Front Axle Accumulator Pre-charge (55 Bar (800 psi) Capacity (2.8 liter/170.8 cu/in) 726. Front Accumulator Test Port 727. Redundant Brake Pressure Switch (NO, Closes at 62 Bar/900 psi) 728. Low Brake Pressure Switch Rising (128 Bar/1856 psi) Falling (103 Bar/1494 psi) 729. Brake Declutch Switch (NC, Opens at 24 Bar/350 psi) 730. Brake Lamp Switch (NO, Closes at 4.1 Bar/60 psi) 731. Redundant Brake Pressure Switch (NO, Closes at 62 Bar/900 psi)

FRAME - COMPONENT NUMBERS

32. Rear Axle Accumulator Pre-charge (55 Bar/800 psi) Capacity (2.8 liter/170.8 cu/in) 733. Rear Accumulator Test Port 734. Brake and Cooling Fan Pump 23cc/rev (0.77 cu/in) FRAME 8 COMPONENTS 81. Hydraulic Reservoir 835. Fan Drive Motor Displacement: 23 cc/rev (1.4 cu/in) 836. Fan Valve Fan Speed: 1200 ± 25 rpm 836A. Fan Relief (162 Bar/2350 psi) 837. Cooler Bypass Valve (Optional) 837A. Priority Valve 837B Relief Valve 0.3 ± 0.6 Bar/ 5 ± 8 psi 838. Hydraulic Cooler

FRAME - COMPONENT NUMBERS

7-

FRAME 9 COMPONENTS 9 - 39. Fan Reversing Valve Fan Speed: 1200 ± 25 rpm 939A. Fan Crossover Relief (234 BAR/3394 psi) 939B. Reversing Spools 939C. Pulse Width Modulator (PWM) Relief Solenoid 939D. ON/OFF Reverse Solenoid

FRAME 10 COMPONENTS 10 - 40. Ride Control Accumulator Pre-charge (17 Bar/247 psi) Capacity (3.78 liter/231 cu/in) 10 - 41. Ride Control Valve 10 - 41A. Pressure Relief Valve (280 BAR/4061 psi) 10 - 41B. Manual Bleed Valve 10 - 41C. Ride Control Spool Valve 10 - 41D. Ride Control Solenoid FRAME 11 COMPONENTS 11 - 1. Hydraulic Reservoir 11 - 42. Auxiliary Steering Priority Valve Relief Pressure: (241 Bar/3495 psi) 11 - 42A. Auxiliary Steering Activation Solenoid 11 - 42B. Relief Valve (241 BAR/3495 psi) 11 - 42C. Priority Spool 11 - 43. Auxiliary Steering Pump Displacement: 11 cc/rev (0.671 cu/in) 11 - 44. Auxiliary Steering Pressure Switch NO (Normally Open) Closes at 2.00-2.75 Bar/30-40 psi FRAME 11 COMPONENTS 12 - 45. Coupler Locking Cylinders 12 - 46. Coupler Locking Valve

NOTES NOTE 1. Reverse Control Check Valve.

Used with Ride Control equipped Models ONLY. NOTE 2. Used for XT Model Machines ONLY. NOTE 3. This will replace Item 36 in Frame 8 when this Option is installed on machine.

NOTE 4. See the Repair Manual for the proper Testing and Adjustment for Hydraulic Components.

HYDRAULIC SCHEMATIC 621E WHEEL LOADER Additional copies of this Hydraulic and Electrical Schematic can be ordered through Technical Publications Distribution System.

The part number is 5-7560 Copyright © 2007. CNH America, LLC. All Rights Reserved.

BC07G260-00A

CNH AMERICA LLC 700 STATE STREET RACINE, WI 53404 U.S.A.

North American English Part Number 84243974 Printed in U.S.A. • Rac © 2009 CNH America LLC. All Rights Reserved.

Case is a registered trademark of CNH America