721F - 821F - 921F
4A - ELECTRIC’S
COMPONENT INDEX Sheet Sheet Sheet
1. Starting Relay 4 53. Work Light Relay 7 107. Electromagnetic detents 10
2. Resistor - 75 Ohm 4 54. Rotating Beacon (Optional) 7 108. Pilot Pressure Control Relay 10
3. Alternator 4 55. Dome Lamp 7 109. Pilot Pressure Solenoid 10
4. Crank Control Relay 4 56. Left-Hand Front work Light 7 110. Pilot Pressure Switch 10
5. Batteries 4 57. Optional Front work Light 7 111. Return-to-Dig Proximity Switch 10
6. Crank Request Relay 4 58. Right-Hand Front work Light 7 112. Height Control /Return to travel proximity Switch 10
7. Ignition power latch Relay 4 59. Left-Hand Rear work Light 7 113. Secondary Steering Motor (Option) 11
8. Master Disconnect Switch 4 60. Right-Hand Rear work Light 7 114. Secondary Steering Solenoid (Option) 11
9. Starter motor 4 61. Differential Lock Solenoid 8 115. Secondary Steering Module (Option) 11
10. Ignition Switch 4 62. Transmission Solenoid Valve and Temperature Sender 8 116. Secondary Steering Pressure Switch (Option) 11
11. Neutral Start Relay 4 63. Filter Maintenance Switch 8 117. Hood Switch 11
12. Ignition Power Control Relay 4 64. Output Speed Sensor 8 118. Hood Up Relay 11
13. Power Relay Module A 4 65. Torque Convertor Output Temperature Sender 8 119. Hood Down Relay 11
14. Power Relay Module B 4 66. Engine Speed Sensor 8 120. Hood Motor 11
15. Power Relay Module C 4 67. Intermediate Speed Sensor 8 121. Wiper Cut Out Relay 11
16. Grid heater Relay 4 68. Turbine Speed Sensor 8 122. Front Wiper Motor 11
17. Grid Heater 4 69. Transmission Shifter 8 123. Front Wiper Relay (high speed) 11
18. Power Relay Module D 4 70. Differential Lock Switch (foot) 8 124. Front Wiper Relay (low speed) 11
19. Brake Lamp Relay 6 71. Differential Lock Switch (right consol) 8 125. Rear Wiper Motor 11
20. Water Separator Heater 4 72. Joystick FNR Switch 8 126. Front Wiper/Washer Switch 11
21. Fuel Filter Heater 4 73 FNR Switch (Single axis controls) 8 127. Rear Wiper Switch 11
22. Water In Fuel Sensor 5 74. Transmission Electronic Control Module 8 128. Rear Washer Motor 11
23. Throttle Potentiometer 5 74a Transmission Diagnostic connector 8 129. Front Washer motor 11
24. Engine Controller 5 75. Transmission Enable Switch 8 130. Air Conditioning High-Low PressureSwitch 12
25 Dinox module 5 76. POWERINCH sensor 8 131. Air Conditioning High-Low PressureSwitch (Option) 12
26. NOx sensor relay 5 77. Brake Declutch Pressure Switch 8 132. Air Conditioning Clutch Relay 12
27. Downstream temperature sensor 5 78. Torque converter Lockup Solenoid 8 133. Air Conditioning Clutch 12
27a Upstream temperature sensor 5 79. Transmission Auto / Manual Switch 8 134. Air Suspension Seat Motor 12
28. Doser meetering valve 5 80. Declutch / Torque converter Lockup Switch 8 135. Diagnostic connector 12
29. Tank heater solenoid control valve 5 81. Radiator Coolant Temperature Sender 9 136. Telematics 12
30. NOx sensor 5 82. Fuel Level Sender 9 137. Cigar Lighter 12
31. Can Bus terminateur 5 83. Air Filter Restriction Switch 9 138. Speakers 12
32. Humidity and ambient temperature sensor 5 84. Hydraulic Filter Restriction Switch 9 139. Radio 12
33. Diagnostic-2 connector 5 85. Redundant Brake Pressure Switch 1 9 140. Power Converter - 24 to 12 Volt 12
34. DEF level and tank temperature 5 86. Redundant Brake Pressure Switch 1 9 141. Power Outlet (12 Volt) 12
35. Driving light switch 6 87. Park Brake Switch 9 142. Power Outlet (12 Volt) 12
36. Turn Signal, High-Low Beam, and Horn Switch 6 88. Hydraulic Oil Temperature Sender 9 143. Antenna 12
37. Left-Hand Front Combination Lights 6 89. Parking Brake Relay 9 144. Joystick PVRES (JSS) 13
38. Right-Hand Front Combination Lights 6 90. Brake Warning Pressure Switch 9 145. PVG32 Solenoid valve (JSS) 13
39. Flasher Module 6 91. Parking Brake Solenoid 9 146. Pilot Dump Valve (JSS) 13
40. Left-Hand Rear Combination Lights (Europe) 6 92. Fan Control Switch (Option) 10 147. FNR Switch (JSS) 13
41. Right-Hand Rear Combination Lights (Europe) 6 93. Fan Reverse Relay (Option 10 148. Transmission Kick Down Switch (JSS) 13
42. Left-Hand Rear Combination Lights (NA) 6 94. Pin Engage Switch (Option) 10 149. Can Module 2 (JSS) 13
43. Right-Hand Rear Combination Lights (NA) 6 95. Fan Reverse Solenoid (Option) 10 150. Armrest Position Switch (JSS) 13
44. Hazard Switch 6 96. Fan PWM Solenoid 10 151. FNR Relay (JSS) 13
45. Backup Alarm Relay 6 97. Pin Engage Switch (Option) 10 152. Load sense Pressue Switch (JSS) 13
46. Backup Alarm Disable Switch 6 98. Ride Control Switch (Option) 10 153. Pilot Pressure Switch (JSS) 13
47. Backup Alarm 6 99. Ride Control Relay (Option) 10 154. JSS Relay (JSS) 13
48. Licence Plate Lamp 6 100. Horn Relay 10 155. Joystick Steering Switch (JSS) 13
49. Door Switch 7 101. Horn 10 156. JSS Controller (JSS) 13
50. Rotating Beacon Switch (Optional) 7 102. Ride Control Solenoid (Option) 10 160. Actuator (air recycling) 14
49. Door Switch 7 103. XT Rollback Pressure Switch (Option) 10 161. Controller A/C 14
50. Rotating Beacon Switch (Optional) 7 104. Return to travel / Float pressure Switch 10 162. Electro Water Valve 14
51. Rear camera monitor 7 105. Height Control Switch 10 163. Resistor (fan speed) 14
52. Work Light Switch 7 106. Return-to-Dig Switch 10 164. Fan Motor 14
Racine / Monthyon Training centers 4A -
4A - ELECTRIC’S 721F - 821F - 921F
CAB ELECTRICAL COMPARTMENT ECC FUSES
118 123 19
F1 7.5 Dome lamp - beacon
F2 20 Work lights
140 ECD F3 15 Driving lights 119 124
ECC F4 10 Brake lights - flasher
F5 10 Key switch
F6 7.5 Horn 53 108 12
74 39 F7 10 Hood raise - lower
F8 10 AIC power 99 4
F9 10 Diagnostic power 100
F10 7.5 Trans ECM
132 26
ECA
ECB 45
121 ECD
ECC
7
B Connector Cab / Transmission 11
C Connector Cab / Front chassis
D Connector Cab / Engine
E Connector Cab / Engine 2
F Connector Cab / Engine elec box 6
(24V power supply from battery)
G Connector Cab / Bottom cab
(brake pedal sensor+ brake signals) 93
PRMC
B 89
C
ECA ECB
PRMA PRMB C B
74a D ECA FUSES ECB FUSES
2 F1 7.5 Transmission control F1 10 12V Power (opt)
G F2 10
F3 7.5
Steering
AIC power
F2 10 12V Power (opt)
F3 5 High beam left
PRM A F1 20 Power converter F4 7.5 Secondary steering F4 5 High beam right
F2 20 Secondary steering F5 7.5 Ride control F5 5 Low beam left
D F6 5 Parking brake
F7 7.5 Coupler/fan reverser
F6 5 Low beam right
F7 5 Left tail lights
PRM B F1 40 Accessory power
F2 20 DNOX F F8 5 Turn signal/flasher F8 5 Right tail lights
Relay accessory power F9 10 Engine stop F9 15 12V Radio
F10 5 DNOX controller F10 15 12V Power (opt)
PRM C Relay converter power F11 25 Blower switch
F1 40 Ignition power F12 10 Front wiper
F2 No fuse Spare F13 10 Rear wiper
Relay ignition power F14 5 Backup alarm
F15
F16 15 Compressor (seat)
F17 7.5 Secondary steering
F18 15 Lighter
F19 5 Camera
F20
E
4A - Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
ENGINE ELECTRICAL BOX
CAB ELECTRICAL COMPARTMENT
2 Resistor 75 Ohm
4 Crank control relay 31
6 Crank request relay 16
7 Ignition power latch relay
11
12
Neutral start relay
Ignition power control relay
16
19 Brake lamp relay
26 Nox sensor relay
33 Machine diagnostic 2 connector (Denox Module)
39
45
Flasher module
Backup alarm relay
A
53 Work light relay
74 Transmission electronic control module 1
74a ZF diagnostic connector A
89 Parking brake relay
93 Fan reverser relay
99 Ride control relay
100 Horn relay PRMD
108 Pilot Pressure control relay
118
119
Hood up relay
Hood down relay
1
121 Wiper cutout relay
123 Front wiper high speed relay
124 Front wiper low speed relay
132 Air conditioning compressor clutch relay
135 Machine diagnostic connector 40 Amp 30 Amp
140 Power voltage converter
PRMD
DESCRIPTION
1 Starter relay
16 Grid heater relay
31 CAN BUS 2 terminator (120 ohms)
A Grid heater fuse 150 A
PRM D Power Relay Module D
F1 40 A Fuel filter heater
F2 30 A Eng ECM
33
135
FUSES
Racine / Monthyon Training centers 4A -
4A - ELECTRIC’S 721F - 821F - 921F
FEMALE CONNECTOR
MALE CONNECTOR
4A - Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
18
21
13 14 15
20
5
8
2
7
10
1 4
16 12
11
6
17
Racine / Monthyon Training centers 4A -
4A - ELECTRIC’S 721F - 821F - 921F
24
22
26 33
32
31
23
30
25
29
28
34
27
27a
4A - Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
35
39 44
45
19
42 43
40
41
36 46
37 38
47
48
Racine / Monthyon Training centers 4A -
4A - ELECTRIC’S 721F - 821F - 921F
49
60
59
52
58
57
53
50 56
51
55
54
4A - Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
71
75
70
61
62
73
72
77
78
74
74
63
79
64
65
66
74a
67
76
68
74
69
80
Racine / Monthyon Training centers 4A -
4A - ELECTRIC’S 721F - 821F - 921F
89
87
81
82
84 91
88 90
85
86
83
4A - 10 Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
104
98
99
105
94
108
109
106
92
100
110
107
101
111
102
93
97
112
103
95
96
Racine / Monthyon Training centers 4A - 11
4A - ELECTRIC’S 721F - 821F - 921F
119
118 126
121 123
124
127
122
114
113
128
117 120
115
129
125
116
4A - 12 Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
140
134
132 141
130
131
142
133
143
139
138
135
137
136
Racine / Monthyon Training centers 4A - 13
4A - ELECTRIC’S 721F - 821F - 921F
149
154
150
144
148
155
147
151
145
156
152
153
146
4A - 14 Racine / Monthyon Training centers
721F - 821F - 921F 4A - ELECTRIC’S
162
161
163
160
164
165
166 169
168
167
Racine / Monthyon Training centers 4A - 15
4A - ELECTRIC’S 721F - 821F - 921F
4A - 16 Racine / Monthyon Training centers
