307C and 307C Swing Boom Excavator
Electrical System
307C:
BAJ1-UP
BCM1-UP
BMF1-UP
BNE1-UP
©
2000 Caterpillar
All Rights Reserved
Printed in U.S.A.
10
7
5
6
16
8
15
12
13
17
1
14
9
11
3
2
4
AREA A
86
89
85
75
97
82
71
98
107
66
74
96
83
73
128
129
79
127
64
105
81
106
7
8
4
18
12
13
17
10
19
3
15
9
6
16
11
5
14
1 2
121 122
123 124
118
117
120
119
130
131
108
104
93
90
80
133
103
132
109
99
11
2
9
6
12
10
17
19
16
18
13
3
1
5
G
15
14
7
7
A
C
B
D
8
8
E
4
90
121
122
123
124
117
119
118
120
80
130
131
108
99
132
133
103
109
93
104
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)
20824-25451 @ 0 °C (32 °F)
6134-7496 @ 25 °C (77 °F)
3989-4875 @ 35 °C (95 °F)
2224-2718 @ 50 °C (122 °F)
973-1189 @ 75 °C (167 °F)
475-522 @ 100 °C (212 °F)
221-269 @ 125 °C (257 °F)
Hydraulic Oil Temp
Sender:4I-5394
1
2
T
This indicates that the component does not have a wire connected to ground. It is grounded by
being fastened to the machine.
This indicates that the component has a wire connected to it that is connected to ground.
105-9344
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Pin
Socket
Fuse
Component
Part Number
Pin or Socket
Number
Receptacle
Plug
Wire, Cable, or Harness
Assembly Identification
Normally closed switch that will open with an increase of a specific condition.
No circle indicates that the wire cannot be disconnected from the component.
Single Wire
Ground
Connection
Connector
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Reed Switch - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
Sender - A component that is used with a temperature or pressure gauge. The sender measures
the temperature or pressure. Its resistance changes to give an indication to the gauge of the
temperature or pressure.
Relay (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The electromagnet can
open or close the switch part of the relay.
Solenoid - A solenoid is an electrical component that is activated by electricity. It has a coil that
makes an electromagnet when current flows through it. The electromagnet can open or close
a valve or move a piece of metal that can do work.
Harness And Wire Symbols
Electrical Schematic Symbols And Definitions
1
1
2
2
Typical representation of a
Sure-Seal connector. The plug
and receptacle contain
both pins and sockets.
Typical representation of
a Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
325-A135 PK-14
AG-C4
111-7898
L-C12
3E-5179
C-C4
130-6795
*
*
*
*
*
Circuit
Number
Identification
Wire
Color
Wire
Gauge
AG-C3
130-6795
Harness identification letter(s) and a
serializing code. The "C" stands for
connector and the number indicates
which connector in the harness.
200-L32 BK-14
325-A135 PK-14
Part Number For
Connector Assembly
Harness identification code
This example indicates
wire 135 in harness "AG".
Related Electrical Service Manuals
Title Form Number
Engine Governor Control 164-8231 RENR4043
Machine Harness Connector And Component Locations
2
4
1
5
F
9
3
7
8
AREA E
110
111
77
65
84
92
78
6
72
7691
67
68 69
AREA F
7
2
1
5
6
3
4
2
1
3
AREA G
101
102
100
AREA B
88
3
4
2
1
125
126
95
1
AREA C
115
116
113
114
AREA D
94
70
51
87
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
5I-6587 Engine Oil Pressure 78.45 ± 9.8 kPa 49 ± 9.8 kPa Normally
(11.38 ± 1.4 psi) (7.1 ± 1.4 psi) Open
106-0179 Travel Pressure 1520 ± 98 kPa 1127 kPa MIN Normally
(220.46 ± 14.2 psi) (163.46 psi MIN) Open
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits Accessory Circuits
101 RD Battery + 501 GN Wiper - Front (Low)
103 RD Backup 506 PU Washer - Front
105 RD Key Sw 508 PU Radio Speaker - Left
107 RD Engine Shut 509 WH Radio Speaker - Left (Common)
109 RD Alt Output + 511 BR Radio Speaker - Right
112 PU Main Power Relay Output 512 GN Radio Speaker - Right (Common)
114 RD Warning Horn (Forward) 521 YL A/C Sw To Refrigerant Sw
115 RD Chassis/Boom Lamp Relay 530 OR Washer Right
116 BR ATCH Cab Lamp Relay 592 BU DC/DC Converter Power Output
117 YL Washer/Wiper Relay A513 PK DC/DC Converter Memory Output
118 GY Aux. Ckt A579 OR Wiper Motor +
120 YL +24 V Ign A580 BR Wiper Motor -
121 YL Back Alarm To Lamp A581 GN Wiper Motor Raise
124 GN A/C A582 PU Wiper Motor Stop
129 BU +24 V Switched In A584 BU Front Window Limit Sw To Wiper Control
135 BU +12 V Switched Out A588 GN Safety Sol Relay To Sol
143 BR Hyd Lock Timer In 1 C537 GN A/C Photo Sensor + Sig
147 PU Travel Spd Sol To ATCH Quick Coupler Sw C538 OR A/C Photo Sensor - Sig
151 GN Neut Start Limit Sw To Hyd Lock Timer Out 1 C560 OR Left Rear Speaker
175 RD ATCH Heater/A/C Unit Blower C566 PK Left Rear Speaker (Common)
180 GN Aux. Ckt Lighting Circuits
190 PK One Touch Low Idle Sw 607 PK Flood Lamp - Front
Ground Circuits 615 YL Cab Flood Lamp/Rops
200 BK Main Chassis 616 BU Bucket Flood Lamp/Boom Flood Lamp
210 BK Converter Output (24/12V) 645 PK Head Lamp Relay
Basic Machine Circuits Control Circuits
303 BR Key Sw ACC Position 763 BU Torque Converter Sw
304 WH Starter Relay No. 1 Output 780 PU Coupler Disengage Sol
306 GN Starter Relay Coil To Neut Start Sw E703 WH Travel Alarm Cancel
307 OR Key Start Sw To Neutral Start Sw H740 OR HEX Governor Motor +
310 PU Start Aid Sw To Start Aid Sol H741 WH HEX Governor Motor -
320 RD Horn Relay To Horn Sw H742 PU HEX Governor Accel Input
321 BR Backup Alarm Lamp Travel Alarm H744 BU HEX Governor Low Idle
322 GY Warning Horn (Forward) J703 WH Alt Pulse Sig To Anti-Start Relay
327 PK Shutdown Sol K776 GN Alternator L Terminal
330 YL Neutral Start Relay Coil M729 PU Governor Motor Sensor Power
332 BU Shutdown Sw To Shutdown Control M730 YL Governor Motor Sensor Signal
Monitoring Circuits M731 BU Governor Motor Sensor Return
403 GN Alternator (R) Term. 817 WH Backup Alarm Relay
405 GY Opr Mon Oil Press. (Low Setting) 877 YL Glow Plug Mag Sw To Glow Plug
439 YL Lamp Indicator C904 GN Relay To Relay
441 OR Eng Coolant Temp Gauge N933 PU Low Idle Indicator
442 GY Hyd System Temp Gauge P969 BR Analog Return (HEDC)
447 PK Fuel Level Gauge R997 OR +5V Analog Sensor Power
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Panel - A/C Switch D-3 20 Relay - Start Cont. H-8 40
Governor - Actuator Engine C-12 1 Relay - Starter G-9 41
Alarm - Travel A-7 2 Relay - Travel Alarm 1 H-12 42
Alternator B-11 3 Relay - Travel Alarm 2 H-11 43
Antenna D-8 4 Relay - Washer/ Wiper H-11 44
Battery C-11,C-12 5 Sender - Coolant Temperature B-12 13
Terminal - Block F-10 21 Sender - Hydraulic Oil Temp A-8 14
Breaker - Alternator F-12 22 Sensor - A/C Photo D-2 45
Governor - Controller Engine I-9 23 Sensor - Fuel Level A-7 15
Converter - 12V 2.5A C-7 24 Socket - 12V 5A C-6 46
Converter - 12V 5A D-7 25 Solenoid - A/C Clutch B-12 16
Dial - Engine Speed E-3 26 Solenoid - Engine Shutdown B-12 17
Block - Fuse I-11,I-12 27 Solenoid - Hydraulic Lock B-9 47
Panel - Heater Switch D-3 28 Solenoid - Travel Speed B-9 48
Horn A-4 6 Speaker B-7, I-7 49
Lamp - Boom A-3 7 Switch - Disconnect D-12 18
Lamp - Cab G-1,H-1 8 Switch - Engine Oil Pressure A-11 19
Lamp - Chassis A-4 9 Switch - Horn H-2 50
Lamp - Dome H-4 29 Switch - Neutral Start I-2 51
Lighter - Cigar C-3 30 Switch - Ones Touch Low Idle E-2 52
Meter - Service C-2 31 Switch - Panel B-3 53
Monitor D-2 32 Switch - Starter E-3 54
Motor - Starter A-12 10 Switch - Travel Alarm Cancel B-4 55
Motor - Washer E-12 11 Switch - Travel Pressure C-9 56
Motor - Wiper C-2 33 Switch - Window Limit G-3 57
Glow Plug B-12 12 Timer - Engine Shutdown H-9 58
Radio C-6 34 Timer - Hydraulic Lock I-9 59
Relay - Cab Lamp H-11 35 Unit Air Conditioner E-7 60
Relay - Chassis / Boom Lamp H-12 36 Unit Heater E-7 61
Relay - Neutral Start H-11 37 Unit IND E-3 62
Relay - Heater G-9 38 Wiper Control C-2 63
Relay - Horn H-12 39
Machine locations are repeated for components located close together.
A Located in the cab. E Around Relay panel.
B Located in the righthand console. F Inside of Fuse relay box.
C Located in the lefthand console. G Around Pilot Manifold.
D Under Platform.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 E-12 90
CONN 2 E-12 91
CONN 3 E-12 67
CONN 4 E-11 68
CONN 5 E-11 69
CONN 6 E-10 76
CONN 7 I-10 92
CONN 8 I-10 110
CONN 9 I-9 77
CONN 10 I-10 111
CONN 11 I-10 112
CONN 12 B-12 104
CONN 13 B-12 93
CONN 14 H-9 65
CONN 15 H-9 84
CONN 16 H-9 78
CONN 17 I-7 86
CONN 18 G-4 85
CONN 19 H-3 113
CONN 20 H-3 114
CONN 21 H-2 87
CONN 22 H-2 115
CONN 23 H-2 116
CONN 24 G-4 117
CONN 25 G-2 118
CONN 26 G-2 119
CONN 27 G-2 120
CONN 28 H-1 121
CONN 29 H-1 122
CONN 30 G-1 123
CONN 31 G-1 124
CONN 32 E-5 94
CONN 33 E-4 70
CONN 34 E-3 88
CONN 35 E-2 125
CONN 36 E-2 126
CONN 37 E-3 95
CONN 38 E-7 79
CONN 39 E-6 64
CONN 40 C-12 80
CONN 41 F-5 127
CONN 42 C-7 81
CONN 43 C-6 128
CONN 44 C-6 129
CONN 45 C-6,C-7 73
CONN 46 B-6 105
CONN 47 D-3 96
CONN 48 D-2 71
CONN 49 D-2 97
CONN 50 C-2 98
CONN 51 C-3 106
CONN 52 C-3 107
CONN 53 C-3 66
CONN 54 B-2 82
CONN 55 B-3 74
CONN 56 B-4 83
CONN 57 A-3,A-4 130
CONN 58 A-3,A-4 131
CONN 59 A-4 108
CONN 60 A-7 99
CONN 61 B-7 89
CONN 62 B-8 100
CONN 63 B-8 101
CONN 64 B-8 102
CONN 65 C-9 72
CONN 66 A-11 132
CONN 67 A-11 133
CONN 68 B-11 109
CONN 69 B-11 103
CONN 70 C-6 75
The connectors shown in this chart are for harness to harness
connectors. Connectors that join a harness to a component are
generally located at or near the component. See the
Component Location Chart.
123456789101112
123456789101112
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
IDENT
HARNESS AS.
A
C
C
E
F
G
H
J
J
K
L
L
M
N
P
WIRE AS.
WA
WC
WE
WF
WG
WH
WJ
CABLE AS.
CA
CC
CE
CF
CG
CH
LOC
E-11
E-11 (NOTE B)
E-11 (NOTE C)
E-11
E-6
H-3
E-4
A-4 (NOTE C)
A-4 (NOTE A)(NOTE C)
A-4 (NOTE C)
G-2
G-2 (NOTE E)
G-2
A-3 (NOTE B)
C-7 (NOTE D)
F-10
F-10
F-10
F-10
F-10
F-10
F-5
D-11
D-12
D-12
C-12
G-8
A-12
PART NO.
167-3552
167-3553
183-1062
167-3554
167-3509
167-3512
167-3515
153-2576
153-2577
134-3326
183-1030
186-4598
186-4575
143-1571
186-4552
167-3618
167-3619
167-3620
134-3320
167-3621
134-3322
183-1031
167-3607
134-3307
167-3608
143-1580
1S-2342
132-1805
THIS SCHEMATIC IS FOR THE 307C EXCAVATOR.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
NOTE A: USE WITH OFFSET BOOM.
NOTE B: USE WITH MODEL X386 AND X387.
1673549 HE01
01-JUN-2000
ATCH CAB LAMP
115-E2 PK-16
175-E4 RD-14
117-E13 YL-14
101-E3 RD-12
114-E5 RD-18
103-E6 RD-18
107-E7 RD-14
105-E21 RD-10
190-E18 PK-18
147-E29 PU-18
112-E23 PU-10
124-E27 GN-16
180-E24 GN-16
105-E21 RD-10
103-E6 RD-18
107-E7 RD-14
114-E5 RD-18
190-E18 PK-18
175-E4 RD-14
117-E13 YL-14
115-E2 PK-16 175-E4 RD-14
124-E27 GN-16
101-E3 RD-12
101-E12 RD-10
112-E23 PU-10
103-E6 RD-18
107-E7 RD-14
105-E21 RD-10
190-E18 PK-18
115-E2 PK-16
117-E13 YL-14
114-E5 RD-18
107-E7 RD-14
200-E61 BK-18
327-E62 PK-14
K776-E64 GN-18
200-E65 BK-18
J703-E66 PK-18
330-E63 YL-18
330-E68 YL-18
310-E67 PU-18
306-E44 GN-18
101-E3 RD-12
101-E12 RD-10
117-E13 YL-14
200-E39 BK-18
118-E38 GY-18
114-E35 RD-18
320-E36 RD-18
114-E5 RD-18
322-E37 GY-18
118-E38 GY-18
200-E39 BK-18
200-E40 BK-18
117-E13 YL-14
118-E38 GY-18
118-E45 GY-18
645-E46 PK-18
645-E48 PK-18
A588-E42 GN-18
200-E40 BK-18
307-E43 OR-18
306-E44 GN-18
118-E45 GY-18
645-E46 PK-18
115-E2 PK-16
200-E39 BK-18
322-E37 GY-18
307-E43 OR-18
320-E36 RD-18
645-E48 PK-18
306-E44 GN-18
A588-E42 GN-18
175-E4 RD-14
103-E6 RD-18
105-E21 RD-10
190-E18 PK-18
112-E23 PU-10
101-E3 RD-12
101-E12 RD-10
107-E7 RD-14
124-E27 GN-16
175-E4 RD-14
124-E27 GN-16
320-E36 RD-18
112-E23 PU-10
103-E6 RD-18
105-E21 RD-10
190-E18 PK-18
307-E43 OR-18
645-E48 PK-18
A588-E42 GN-18
322-E37 GY-18
101-E12 RD-10
101-E3 RD-12
107-E7 RD-14
306-E44 GN-18
101-E12 RD-10
101-E3 RD-12
107-E7 RD-14
306-E44 GN-18
310-E67 PU-18
330-E68 YL-18
200-E65 BK-18
200-E61 BK-18
K776-E64 GN-18
327-E62 PK-14
J703-E66 PK-18
330-E68 YL-18
310-E67 PU-18
175-E4 RD-14
645-E48 PK-18
320-E36 RD-18
307-E43 OR-18
190-E18 PK-18
105-E21 RD-10
112-E23 PU-10
A588-E42 GN-18
103-E6 RD-18
124-E27 GN-16
200-E61 BK-18
200-E65 BK-18
200-E39 BK-18
101-WE1 RD-6
109-WA1 RD-6
322-E37 GY-18
327-E62 PK-14
K776-E64 GN-18
J703-E66 PK-18
105-E21 RD-10
112-E23 PU-10
320-E36 RD-18
307-E43 OR-18
103-E6 RD-18
A588-E42 GN-18
310-E67 PU-18
190-E18 PK-18
330-E68 YL-18
175-E4 RD-14
645-E48 PK-18
124-E27 GN-16
322-E37 GY-18
327-E62 PK-14
J703-E66 PK-18
K776-E64 GN-18
105-A1 RD-10
112-A2 PU-10
320-A3 RD-18
307-A4 OR-18
103-A5 RD-18
A588-A6 GN-18
129-A7 BU-14
310-A8 PU-18
332-A9 BU-18
439-A10 YL-18
190-A11 PK-18
330-A12 YL-18
175-A17 RD-14
303-A34 BR-18
151-A14 GN-18
645-A15 PK-18
124-A16 GN-16
322-C2 GY-18
327-C3 PK-14
403-C4 GN-18
607-C5 PK-18
607-C6 PK-18
J703-C7 PK-18
K776-C8 GN-18
506-A18 PU-18
109-C9 RD-6
101-C10 RD-6
304-C11 WH-10
877-C12 YL-8 877-WH1 YL-8
304-WG1WH-10
101-WF1 RD-8
101-WE1 RD-6
109-WC1 RD-8
109-WA1 RD-6
304-WG1WH-10
330-E63 YL-18
330-E68 YL-18
306-E44 GN-18
109-WC1 RD-8
101-E12 RD-10
101-E3 RD-12
310-E67 PU-18
877-WH1 YL-8
101-WF1 RD-8
115-E2 PK-16
114-E5 RD-18
117-E13 YL-14
322-E37 GY-18
320-E36 RD-18
645-E48 PK-18
306-E44 GN-18
200-E39 BK-18
307-E43 OR-18
A588-E42 GN-18
645-E48 PK-18
118-E45 GY-18
118-E38 GY-18
645-E46 PK-18
115-E2 PK-16
508-F37 PU-18
509-F40 WH-18
A584-F12 BU-18
103-F52 RD-18
615-F47 YL-16
200-F54 BK-16
200-F50 BK-18
200-F51 BK-16
508-F37 PU-18
509-F40 WH-18
405-A20 GY-18
441-A22 OR-18
442-A23 GY-18
447-A24 PK-18
521-A25 YL-18
763-A26 BU-18
A588-A28 GN-18
K776-A29 GN-18
190-A11 PK-18
175-A17 RD-14
124-A16 GN-16
151-A14 GN-18
303-A34 BR-18
A588-A6 GN-18
307-A4 OR-18
506-A18 PU-18
330-A12 YL-18
112-A2 PU-10
320-A3 RD-18
105-A1 RD-10
103-A5 RD-18
129-A7 BU-14
332-A9 BU-18
310-A8 PU-18
439-A10 YL-18
645-A15 PK-18
607-A27 PK-18
200-A36 BK-18
200-A44 BK-18
200-A39 BK-16
200-A49 BK-18
200-A21 BK-16
200-A47 BK-14
200-A45 BK-14
200-A36 BK-18
320-A3 RD-18
151-A14 GN-18
A588-A35 GN-18
A588-A6 GN-18
A588-A28 GN-18
521-A25 YL-18
175-A17 RD-14
124-A16 GN-16
442-A23 GY-18
103-A5 RD-18
506-A18 PU-18
190-A11 PK-18
112-A2 PU-10
105-A1 RD-10
307-A4 OR-18
447-A24 PK-18
310-A8 PU-18
439-A10 YL-18
330-A12 YL-18
607-A27 PK-18
303-A34 BR-18
645-A15 PK-18
763-A26 BU-18
129-A7 BU-14
K776-A29 GN-18
441-A22 OR-18
405-A20 GY-18
332-A9 BU-18
607-A38 PK-18
607-A46 PK-18
607-A27 PK-18
200-A47 BK-14
521-A25 YL-18
175-A17 RD-14
124-A16 GN-16
200-A21 BK-16
405-A20 GY-18
K776-A29 GN-18
200-A45 BK-14
330-A12 YL-18
439-A10 YL-18
442-A23 GY-18
763-A26 BU-18
332-A9 BU-18
506-A18 PU-18
200-A39 BK-16
103-A5 RD-18
645-A15 PK-18
200-A49 BK-18
447-A24 PK-18
441-A22 OR-18
105-A1 RD-10
112-A2 PU-10
190-A11 PK-18
200-A44 BK-18
307-A4 OR-18
303-A34 BR-18
310-A8 PU-18
124-A16 GN-16
175-A17 RD-14
521-A25 YL-18
607-A46 PK-18
200-A45 BK-14
200-A47 BK-14
332-A9 BU-18
441-A22 OR-18
439-A10 YL-18
405-A20 GY-18
330-A12 YL-18
447-A24 PK-18
442-A23 GY-18
506-A18 PU-18
607-A38 PK-18
200-A49 BK-18
763-A26 BU-18
645-A15 PK-18
129-A7 BU-14
K776-A29 GN-18
103-A5 RD-18
200-A39 BK-16
200-A21 BK-16
124-A16 GN-16
200-A45 BK-14
175-A17 RD-14
521-A25 YL-18
607-A46 PK-18
200-A47 BK-14
615-A41 YL-16
105-A1 RD-10
112-A2 PU-10
190-A11 PK-18
200-A44 BK-18
303-A34 BR-18
310-A8 PU-18
307-A4 OR-18
151-A14 GN-18
A588-A35 GN-18
200-A36 BK-18
320-A3 RD-18
320-A3 RD-18
200-A36 BK-18
A588-A35 GN-18
151-A14 GN-18
441-C15 OR-18
405-C13 GY-18
442-C16 GY-18
447-C17 PK-18
521-C18 YL-18
607-C19 PK-18
763-C20 BU-18
A588-C21 GN-18
K776-C22 GN-18
M729-C23 PU-16
M730-C24 YL-16
M731-C25 BU-16
H740-C26 OR-16
H741-C27 WH-16
M729-C23 PU-16
M730-C24 YL-16
M731-C25 BU-16
H740-C26 OR-16
H741-C27 WH-16
405-C13 GY-18
441-C15 OR-18
442-C16 GY-18
447-C17 PK-18
521-C18 YL-18
763-C20 BU-18
A588-C21 GN-18
607-C19 PK-18
K776-C22 GN-18
K776-C8 GN-18
K776-C28 GN-18
607-C6 PK-18
616-C29 BU-16
304-C11 WH-10
327-C3 PK-14
101-C10 RD-6
403-C4 GN-18
877-C12 YL-8
322-C2 GY-18
109-C9 RD-6
J703-C7 PK-18
M729-C23 PU-16
M730-C24 YL-16
M731-C25 BU-16
H740-C26 OR-16
H741-C27 WH-16
521-C18 YL-18
200-C30 BK-18
877-C12 YL-8
200-C31 BK-18
441-C15 OR-18
327-C3 PK-14
101-C10 RD-6
304-C11 WH-10
521-C18 YL-18
441-C15 OR-18
304-C11 WH-10
101-C10 RD-6
877-C12 YL-8
327-C3 PK-14
200-C30 BK-18
200-C31 BK-18
200-C33 BK-18
200-C32 BK-6
403-C4 GN-18
K776-C28 GN-18
109-C9 RD-6
J703-C7 PK-18
200-C32 BK-6
200-C33 BK-18
405-C13 GY-18
K776-C28 GN-18
J703-C7 PK-18
403-C4 GN-18
405-C13 GY-18
109-C9 RD-6
200-C33 BK-18
200-C32 BK-6
441-C15 OR-18
877-C12 YL-8
521-C18 YL-18
304-C11 WH-10
101-C10 RD-6
327-C3 PK-14
441-C15 OR-18
109-C9 RD-6
101-C10 RD-6
304-C11 WH-10
327-C3 PK-14
877-C12 YL-8
521-C18 YL-18
403-C4 GN-18
405-C13 GY-18
J703-C7 PK-18
K776-C28 GN-18
442-C16 GY-18
447-C17 PK-18
607-C5 PK-18
200-C1 BK-18
763-C20 BU-18
322-C2 GY-18
616-C29 BU-16
A588-C21 GN-18
A588-C21 GN-18
763-C20 BU-18
200-C34 BK-18
322-C2 GY-18
616-C29 BU-16
200-C36 BK-16
763-C20 BU-18
A588-C21 GN-18
200-C34 BK-18
442-C16 GY-18
200-C14 BK-18
200-C14 BK-18
447-C17 PK-18
200-C37 BK-18
200-C38 BK-18
200-C1 BK-18
607-C5 PK-18
447-C17 PK-18
200-C37 BK-18
616-C29 BU-16
200-C36 BK-16
322-C2 GY-18
200-C38 BK-18
607-C5 PK-18
103-F52 RD-18
200-F60 BK-18
200-F51 BK-16
A584-F12 BU-18
615-F47 YL-16
200-F50 BK-18
103-F52 RD-18
200-F60 BK-18
615-F47 YL-16
200-F50 BK-18
A584-F12 BU-18
A584-F12 BU-18
A584-F12 BU-18
200-F54 BK-16
103-F52 RD-18
509-F40 WH-18
508-F37 PU-18
615-F47 YL-16
511-F38 BR-18
512-F41 GN-18
511-F38 BR-18
512-F41 GN-18
332-F57 BU-18
441-F9 OR-18
439-F5 YL-18
N933-F4 PU-18
405-F6 GY-18
330-F7 YL-18
447-F10 PK-18
442-F8 GY-18
506-F22 PU-18
200-F54 BK-16
607-F56 PK-18
763-F29 BU-18
645-F30 PK-18
129-F59 BU-16
K776-F13 GN-18
103-F55 RD-18
200-F58 BK-16
E703-F33 WH-18
615-F47 YL-16
512-F41 GN-18
511-F38 BR-18
509-F40 WH-18
508-F37 PU-18
A584-F12 BU-18
200-F54 BK-16
615-F47 YL-16
103-F52 RD-18
103-F55 RD-18
103-F43 RD-18
607-F44 PK-18
607-F34 PK-18
607-F56 PK-18
607-F3 PK-18
447-F10 PK-18
442-F8 GY-18
506-F22 PU-18
330-F7 YL-18
332-F57 BU-18
763-F29 BU-18
645-F30 PK-18
405-F6 GY-18
129-F59 BU-16
K776-F13 GN-18
E703-F33 WH-18
N933-F4 PU-18
441-F9 OR-18
439-F5 YL-18
200-F58 BK-16
332-F57 BU-18
E703-F33 WH-18
607-F34 PK-18
508-F37 PU-18
511-F38 BR-18
512-F41 GN-18
103-F43 RD-18
509-F40 WH-18
607-F44 PK-18
129-F59 BU-16
A584-F12 BU-18
506-F22 PU-18
645-F30 PK-18
N933-F4 PU-18
447-F10 PK-18
439-F5 YL-18
442-F8 GY-18
763-F29 BU-18
330-F7 YL-18
441-F9 OR-18
405-F6 GY-18
K776-F13 GN-18
607-F3 PK-18
332-F1 BU-18
332-F27 BU-18
129-F23 BU-16
129-F15 BU-16
200-F58 BK-16
200-F2 BK-18
200-F16 BK-16
200-F28 BK-18
200-F14 BK-18
200-F58 BK-16
200-F28 BK-18
200-F14 BK-18
200-F16 BK-16
200-F2 BK-18
C566-F25 PK-18
C560-F24 OR-18
509-F40 WH-18
512-F41 GN-18
508-F37 PU-18
511-F38 BR-18
607-F44 PK-18
103-F43 RD-18
E703-F33 WH-18
607-F34 PK-18
200-F35 BK-18
332-F1 BU-18
441-F9 OR-18
607-F3 PK-18
439-F5 YL-18
N933-F4 PU-18
405-F6 GY-18
330-F7 YL-18
200-F2 BK-18
447-F10 PK-18
442-F8 GY-18
C537-F63 GN-18
C538-F62 OR-18
K776-F13 GN-18
200-F14 BK-18
129-F15 BU-16
200-F16 BK-16
129-F15 BU-16
200-F16 BK-16
A579-F17 OR-16
A580-F18 BR-16
A581-F19 GN-16
A582-F21 PU-16
200-F20 BK-16
501-F31 GN-18
530-F32 OR-18
A584-F12 BU-18
129-F23 BU-16
506-F22 PU-18
200-F26 BK-16
501-F31 GN-18
530-F32 OR-18
763-F29 BU-18
645-F30 PK-18
332-F27 BU-18
200-F28 BK-18
332-F27 BU-18
200-F28 BK-18
763-F29 BU-18
645-F30 PK-18
501-F31 GN-18
530-F32 OR-18
200-F14 BK-18
K776-F13 GN-18
A579-F17 OR-16
A580-F18 BR-16
A584-F12 BU-18
506-F22 PU-18
129-F23 BU-16
530-F32 OR-18
501-F31 GN-18
200-F26 BK-16
A582-F21 PU-16
A581-F19 GN-16
332-F1 BU-18
441-F9 OR-18
607-F3 PK-18
439-F5 YL-18
N933-F4 PU-18
405-F6 GY-18
330-F7 YL-18
200-F2 BK-18
447-F10 PK-18
442-F8 GY-18
C538-F62 OR-18
C537-F63 GN-18
A579-F17 OR-16
A580-F18 BR-16
A581-F19 GN-16
200-F20 BK-16
A582-F21 PU-16
320-G1 RD-18
200-G2 BK-18
320-G1 RD-18
200-G2 BK-18
147-H14 PU-18
780-H15 PU-18
105-H6 RD-10
112-H2 PU-10
303-H1 BR-18
310-H3 PU-18
307-H5 OR-18
780-H15 PU-18
147-H14 PU-18
303-H1 BR-18
112-H2 PU-10
310-H3 PU-18
307-H5 OR-18
105-H6 RD-10
190-H10 PK-18
H744-H11 BU-18
R997-H7 OR-16
H742-H8 PU-16
P969-H9 BR-16 190-H10 PK-18
H744-H11 BU-18
616-J1 BU-16
200-J2 BK-16
616-K1 BU-16
200-K2 BK-16
615-L1 YL-16
200-L2 BK-16
615-L4 YL-16
200-L6 BK-16
615-WJ1 YL-16
615-WJ1 YL-16
200-CF1 BK-0
200-CE1 BK-0 101-CC1 RD-0 101-CA1 RD-0
101-CA1 RD-0
607-H12 PK-18
200-H13 BK-18
607-H12 PK-18 607-A48 PK-18
607-A48 PK-18
120-E26 YL-18
147-E28 PU-18
147-E28 PU-18
120-E26 YL-18
147-E28 PU-18
120-E26 YL-18
147-E28 PU-18
120-E26 YL-18
120-E26 YL-18
120-E26 YL-18
147-E28 PU-18
147-E28 PU-18
120-A37 YL-18
120-A37 YL-18
120-A37 YL-18
120-A37 YL-18
120-A37 YL-18
147-C35 PU-18
147-C35 PU-18
147-C35 PU-18
147-C35 PU-18
147-C35 PU-18
120-F39 YL-18
120-F39 YL-18
120-F39 YL-18
120-F39 YL-18
103-F11 RD-18
103-F11 RD-18
103-F11 RD-18
103-F11 RD-18
C538-F62 OR-18
C537-F63 GN-18
A580-F18 BR-16
A581-F19 GN-16
A582-F21 PU-16
101-E12 RD-10
330-E63 YL-18
OPERATOR STATION
OPERATOR STATIONOPERATOR STATION OPERATOR STATION
OPERATOR STATIONOPERATOR STATIONOPERATOR STATION
OPERATOR STATION
OPERATOR STATIONOPERATOR STATION
CONSOLE RH
CONSOLE RH
CONSOLE RH
CONSOLE RH
CONSOLE LH
CONSOLE LH
RELAY PANEL
RELAY PANEL
RELAY PANEL
RELAY PANEL
RELAY PANEL
RELAY PANEL
101-CA1 RD-0
L1
L3
L1L2
L5
L5
L4
L4
L6
L3
L8
L9
L9
L10
L2
L11
L10
L6
L7
L7
L8
L11
L12
L13
L14
L14
L13
200-F42 BK-18
200-F42 BK-18
200-F42 BK-18
180-E24 GN-16
147-E29 PU-18
320-E36 RD-18
114-E5 RD-18
322-E37 GY-18
607-E8 PK-18
607-E8 PK-18
607-E8 PK-18
607-E8 PK-18
607-E8 PK-18
607-E8 PK-18
607-E8 PK-18
616-E9 BU-16
616-E9 BU-16
616-E9 BU-16
616-E9 BU-16
616-E9 BU-16
616-E9 BU-16
616-E9 BU-16
615-E10 YL-16
615-E10 YL-16
615-E10 YL-16
101-E3 RD-12
116-E1 BR-16
116-E1 BR-16
116-E1 BR-16
116-E1 BR-16
116-E1 BR-16
116-E1 BR-16
129-E16 BU-14
129-E16 BU-14
129-E16 BU-14
129-E16 BU-14
129-E16 BU-14
129-E16 BU-14
129-E16 BU-14
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
877-E14 YL-18
439-E15 YL-18
439-E15 YL-18
439-E15 YL-18
439-E15 YL-18
439-E15 YL-18
439-E15 YL-18
439-E15 YL-18
143-E20 BR-18
143-E20 BR-18
403-E33 GN-18
403-E33 GN-18
403-E33 GN-18
403-E33 GN-18
403-E33 GN-18
403-E33 GN-18
403-E34 GN-18
403-E34 GN-18
403-E34 GN-18
403-E34 GN-18
403-E34 GN-18
403-E34 GN-18
101-E12 RD-10
112-E11 PU-16
118-E30 GY-18
118-E30 GY-18
118-E30 GY-18
118-E30 GY-18
118-E30 GY-18
332-E31 BU-18
332-E31 BU-18
332-E31 BU-18
332-E31 BU-18
332-E31 BU-18
332-E31 BU-18
332-E32 BU-18
332-E32 BU-18
332-E32 BU-18
332-E32 BU-18
332-E32 BU-18
332-E32 BU-18
303-E22 BR-18
303-E22 BR-18
303-E22 BR-18
303-E22 BR-18
303-E22 BR-18
303-E22 BR-18
200-H13 BK-18
190-H10 PK-18
H744-H11 BU-18
P969-H9 BR-16
H742-H8 PU-16
R997-H7 OR-16
190-E17 PK-18
190-E17 PK-18
190-E17 PK-18
190-E17 PK-18
190-E17 PK-18
190-E17 PK-18
190-E17 PK-18
R997-E50 OR-16
R997-E50 OR-16
R997-E50 OR-16
R997-E50 OR-16
H742-E51 PU-16
H742-E51 PU-16
H742-E51 PU-16
H742-E51 PU-16
P969-E52 BR-16
P969-E52 BR-16
P969-E52 BR-16
P969-E52 BR-16
H741-E53 WH-16
H741-E53 WH-16
H741-E53 WH-16
H741-E53 WH-16
H740-E54 OR-16
H740-E54 OR-16
H740-E54 OR-16
H740-E54 OR-16
M729-E56 PU-16
M729-E56 PU-16
M729-E56 PU-16
M729-E56 PU-16
N933-E55 PU-18
N933-E55 PU-18
N933-E55 PU-18
N933-E55 PU-18
M730-E57 YL-16
M730-E57 YL-16
M730-E57 YL-16
M730-E57 YL-16
M731-E58 BU-16
M731-E58 BU-16
M731-E58 BU-16
M731-E58 BU-16
H744-E59 BU-18
H744-E59 BU-18
H744-E59 BU-18
H744-E59 BU-18
200-E60 BK-18
200-E60 BK-18
200-E60 BK-18
200-E69 BK-16
200-E69 BK-16
200-E69 BK-16
200-E69 BK-16
L12
R997-A30 OR-16
R997-A30 OR-16
R997-A30 OR-16
R997-A30 OR-16
R997-A30 OR-16
H742-A31 PU-16
H742-A31 PU-16
H742-A31 PU-16
H742-A31 PU-16
H742-A31 PU-16
P969-A32 BR-16
P969-A32 BR-16
P969-A32 BR-16
P969-A32 BR-16
P969-A32 BR-16
H744-A33 BU-18
H744-A33 BU-18
H744-A33 BU-18
H744-A33 BU-18
H744-A33 BU-18
N933-A13 PU-18
N933-A13 PU-18
N933-A13 PU-18
N933-A13 PU-18
N933-A13 PU-18
200-A43 BK-16
200-A43 BK-16
200-A19 BK-18
200-A19 BK-18
200-A21 BK-16
200-A39 BK-16
135-F45 BU-16
135-F45 BU-16
210-F46 BK-16
210-F46 BK-16
129-F49 BU-16
129-F36 BU-16
129-F61 BU-16
129-F61 BU-16
129-F61 BU-16
200-F51 BK-16
200-F60 BK-18
200-F53 BK-16
200-F53 BK-16
200-F53 BK-16
200-F53 BK-16
200-C1 BK-18200-C1 BK-18
200-C36 BK-16
200-C34 BK-18
200-C36 BK-16
200-C34 BK-18
200-C36 BK-16
200-C34 BK-18
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E47 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E49 RD-16
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
109-E41 RD-14
403-E34 GN-18
403-E33 GN-18
200-A49 BK-18
200-A43 BK-16
200-A19 BK-18
200-C32 BK-6
200-C33 BK-18
310-H4 PU-18
310-H4 PU-18
200-F20 BK-16
200-F26 BK-16
200-F20 BK-16
200-F26 BK-16
200-C34 BK-18
200-C36 BK-16
200-F48 BK-18
200-F48 BK-18
200-F48 BK-18
200-F48 BK-18
129-A50 BU-16
129-A50 BU-16
129-A42 BU-16
129-A42 BU-16
200-F54 BK-16
615-F47 YL-16
200-F53 BK-16
615-L3 YL-16
200-L5 BK-16
200-F50 BK-18
616-C29 BU-16
615-WJ1 YL-16
615-M1 YL-16
200-M2 BK-16
ATCH CAB LAMP
ENGINE
ENGINE
ENGINE
ENGINE
NOTE C: USE WITH MODEL X385.
NOTE D: USE FOR OUTSIDE JAPAN.
NOTE E: USE WITH FRONT GUARD CAB LAMP.
616-N1 BU-16
200-N2 BK-16
616-N4 BU-16
200-N6 BK-16
616-N3 BU-16
200-N5 BK-16
(NOTE B)
(NOTE C)
120-P7 YL-18
A513-P11 RD-18103-P6 RD-18
508-P3 PU-18
509-P4 WH-18
511-P1 BR-18
512-P2 GN-18
592-P10 BU-18200-P5 BK-18
200-P8 BK-18
200-P9 BK-18
120-P7 YL-18
A513-P11 RD-18
592-P10 BU-18
200-P8 BK-18
103-P6 RD-18
ATCH RADIO READY (NOTE D)
TO RADIO
321-C39 BR-18
321-C39 BR-18
321-C39 BR-18
321-C39 BR-18
200-C40 BK-18
321-C39 BR-18
200-C40 BK-18
817-C41 WH-18
817-C41 WH-18
817-C41 WH-18
817-C41 WH-18
817-C41 WH-18
200-C42 BK-18
200-C42 BK-18
200-C42 BK-18
200-C42 BK-18
NOTE F: NOT USED ON THIS VEHICLE.
E703-A40 WH-18
E703-A40 WH-18
E703-A40 WH-18
E703-A40 WH-18
E703-A40 WH-18
511-P1 BR-18
512-P2 GN-18
508-P3 PU-18
509-P4 WH-18
121-E25 YL-18
121-E25 YL-18
121-E25 YL-18
121-E25 YL-18
121-E25 YL-18
121-E73 YL-18
121-E74 YL-18
121-E74 YL-18
121-E74 YL-18
C904-E75 GN-18
C904-E75 GN-18
C904-E75 GN-18
321-E70 BR-18
321-E70 BR-18
321-E70 BR-18
321-E70 BR-18
321-E70 BR-18
321-E70 BR-18
321-E70 BR-18
817-E71 WH-18
817-E71 WH-18
817-E71 WH-18
817-E71 WH-18
817-E71 WH-18
817-E71 WH-18817-E71 WH-18
E703-E76 WH-18
E703-E72 WH-18
E703-E72 WH-18
E703-E72 WH-18
E703-E72 WH-18
E703-E72 WH-18
E703-E72 WH-18
E703-E72 WH-18
143-E78 BR-18
143-E78 BR-18
143-E78 BR-18
143-E78 BR-18
143-E78 BR-18
143-E78 BR-18
143-E78 BR-18
103-E77 RD-18
103-E77 RD-18
103-E77 RD-18
103-E77 RD-18
103-E77 RD-18
103-E77 RD-18
103-E77 RD-18
151-E19 GN-18
151-E19 GN-18
151-E19 GN-18
151-E19 GN-18
200-E79 BK-18
200-E80 BK-18
200-E80 BK-18
200-E80 BK-18
200-E40 BK-18
200-C42 BK-18
200-C42 BK-18
442-C16 GY-18
CIRCUIT GROUPING
DESIGNATION
#L
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT NOT CONNECTED
SPLICE
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
60A
ALT BREAKER
9S0174
B
P
E
R
L
ALTERNATOR
1397850
1
2
ATCH TRAVEL ALARM
3T1815
NEG POS
BATTERY FRONT
3T5760
NEG POS
BATTERY REAR
3T5760
MOTOR 2
1
WASHER
1785601
CONN 1 CONN 2 CONN 3 CONN 4 CONN 5 CONN 6
HORN
0961491
CHASSIS LAMP
1431617
T
HYD OIL TEMP SENDER
4I5394
2
1
YL-16
BK-16
FUEL LEVEL SENSOR
1059911
2
1
VALVE
1588266
2
1
TRAVEL SPEED SOL
HYD LOCK SOL
DISCONNECT SW
7N0718
2
1
ATCH A/C CLUTCH SOL
1176353
G S
MTRBAT
MOTOR
STARTER
1397840
GLOW PLUG
1397841
T
COOLANT TEMP SENDER
5I7578
ENG SHUTDOWN SOL
1398247
1
ENG OIL PRESS SW
5I6587
1
COOLANT TEMP SENDER
HEATER RELAY
1
6
9
10
11
12
8
7
5
4
3
ONE TOUCH LOW IDLE
2
+ BATTERY
MONITOR
1673613
ILLUM
ENG OIL PRESS. SW
START CONT RELAY
GND
SPACE
FUEL TANK UNIT
HYD OIL TEMP SENDER
BACKUP
ONE TOUCH LOW IDLE SW
1677052
1
1
PREHEATBR
OFF
ON
START
ACC
R1
R2
C
B
KEY SW
7Y3918
+-
2
1
SERVICE METER
6T7337
HORN SW
1677051
1
1
C
B
A
NEUTRAL START LIMIT SW
1636785
RD-18
WH-18
BK-18
4
5
3
1
2
ATCH TRAVEL ALARM CANCEL SW
1673629
WH-18
YL-18
BK-18
BU-18
4
9
3
5
8
10
AUX SPKR -
AUX SPKR +
LH SPKR -
RH SPKR -
LH SPKR +
RH SPKR +
1
ACC
2
GND
6
ILLUM
ANTENNA
ATCH AM RADIO
1636706
7
BACKUP
BLOCK AS.
7Y5499
ON (KEY)
GND
+ BATTERY
3
2
1
ENG SHUTDOWN TIMER
1385190
SOLENOID
4
RD-14
BK-18
GN-18
BU-14
5A
10A
15A
5A
5A
10A
10A
5A
5A
15A
30A
5A
5A
5A
5A
5A
10A
5A
5A
86
85
30
87A
87
NEUTRAL START LOCK RELAY
1400866
86
85
30
87A
87
WASHER/WIPER RELAY
1400866
86
85
30
87A
87
HORN RELAY
1400866
86
85
30
87A
87
CHASSIS/BOOM LAMP RELAY
1400866
86
85
30
87A
87
ATCH CAB LAMP RELAY
1400866
P
R
L
S
4
3
2
1
START CONT RELAY
1225545
WH/BU
YL
WH/GN
WH/YL
5
6
BK
GND
HEATER RELAY
0855353
127A
FUSE
132-1862
START RELAY
0855200
ANTENNA
1673492
3
1
DOME LAMP
1761986
2
4
CIGAR LIGHTER
9W0335
MOTOR
3
BK
BU
GN
BU/RD
BU/BK
2
5
4
6
1
WIPER MOTOR
1613667
2
1
-
+
3
ATCH SPEAKER LH
7Y5505
2
1
-
+
3
ATCH SPEAKER RH
7Y5505
ATCH 12V SOCKET
1210987
(NOTE D)
LOW
GND
RISE. S
1
6
9
10
11
12
13
8
7
5
4
3
REV
STOP
2
W. CCW
W. CW
WIPER CUT
INT (6)
WA+
WASH
ACC
WIPER CONT
1557042
INT (3)
ATCH BOOM LAMP LH
1431617
ATCH BOOM LAMP RH
1431617
1
J-C1
7Y3966
1
J-C2
7Y3966
1
6
7
5
4
3
2
+B
GND
TRAVEL SPEED SOL
LIGHT
WIPER
AUX
WASHER
SW PANEL
1673612
8 SPACE
1
11
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
E-C7
7Y3967
1
E-C6
1552272
E-C5
1254778
1
2
3
4
5
6
7
8
9
10
11
12
E-C2
3E5179
1
2
E-C1
1160126
1
2
C-C5
1552269
1
2
C-C8
1254791
1
C-C6
7Y3995
1
C-C7
1532602
C-C9
7Y3967
1
C-C10
7Y3967
1
PANEL GND
CHASSIS REAR GND
C-C15
7Y3967
1
C-C16
7Y3967
1C-C14
1552269
C-C11
1552269
C-C12
1552269
1
C-C13
1532602
CHASSIS LH GND
1
2
H-C2
1552252
3
4
5
6
7
8
9
10
11
12
H-C3
7Y3967
1
H-C4
7Y3967
1
1
2
H-C1
1211038
F-C2
7Y3958
1
2
3
4
5
6
7
8
9
10
11
12
13
F-C5
1114816
F-C4
7Y3952
1
F-C7
1532602
F-C6
1431570
1
F-C8
1636804
F-C9
1636803
4
9
F-C10
1532541
3
5
8
10
1
2
6
7
F-C12
7Y3955
F-C13
7Y3955
F-C14
1673630
F-C15
7Y3967
1
1
F-C16
7Y3966
CAB TOP GND
G-C2
7Y3967
1
G-C3
7Y3967
1
A-C7
1552267
A-C12
3E5179
A-C11
1160126
PLATFORM GND
A-C4
1552252
A-C2
1211038
1
2
A-C1
7Y3952
1
L-C1
7Y3966
L-C2
7Y3967
1
F-C11
1532602
CHASSIS LH REAR GND
F-C3
1636659
SPACE
POT GND
POT SIG
POT +
4
3
2
1
ENG GOV ACTUATOR
1648233
5
6
-M
+M
1
2
C-C4
1552273
3
4
5
6
GOV THROTTLE SW
1648232
A
B
C
POT (+B)
POT (SIG)
POT (GND)
H-C5
1552267
IN SIG
SPACE
POT 5V
1
13
5
7
8
9
6
4
11
14
10
3
POT GND
POT SIG
2
+B
GND
L/I SW
P SW
M-
IN 5V
M+
ENG GOV CONT
1648231
IN GND
12
L/I OUT
1
2
3
14
13
12
4
6
7
8
9
10
11
5
E-C13
1673614
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A-C9
1636659
1
2
3
4
5
8
6
10
9
12
13
14
15
17
7
16
18
11
A-C10
1636699
F-C1
1636800
1
2
A-C13
1552273
3
4
5
6
4
9
3
5
8
10
AUX SPKR -
AUX SPKR +
LH SPKR -
RH SPKR -
LH SPKR +
RH SPKR +
1
ACC
2
GND
6
ILLUM
ANTENNA
ATCH AM/FM RADIO
1636707
7 BACKUP
4
9
3
5
8
10
AUX SPKR -
AUX SPKR +
LH SPKR -
RH SPKR -
LH SPKR +
RH SPKR +
1
ACC
2
GND
6
ILLUM
ANTENNA
ATCH AM/FM RADIO(CASSETTE)
1636709
7 BACKUP
A/C BLOWER
15A 5A 10A
HORN
5A 15A 5A
DOME LAMP
5A 5A 5A
ENG SHUTDOWN
15A 5A 10A
CHAS LAMP
5A 30A 5A
BOOM LAMP
10A 5A 5A
CAB LAMP
10A 10A 5A
GLOW IND
WASHER/WIPER
GOV ACTR
HYD LOCK/ALT
SPARE
KEY SW
SPARE
AUX CKT
TRAVEL ALM
RADIO
MON/SW PANEL
A/C HEATER
KEY SIG
SOLENOID
FUSE INSTRUCTION
FUSE BASE
1709371
FUSE
5A 1395345
10A 9W1442
15A 9W1441
30A 8T9636
11
1
10A
15A
1
1
A-C14
7Y3966
WJ-C1
7Y3967
1
CHASSIS GND
CG
1S2342
ENG GND
CH
1321805
1
2
E-C9
1552273
3
4
5
6
1
2
3
4
5
6
C-C3
3E3382
CAB FRONT GND
1
2 YL/WH
YL/GN
ATCH A/C PHOTO SENSOR
1677083
F-C20
1211158
PHOTO -
PHOTO +
2
1
ATCH A/C SWITCH PANEL
1648234
ATCH HEATER SWITCH PANEL
1785525
F-C21
1211156
F-C18
7Y3967
1
1
F-C19
7Y3966
WINDOW LIMIT SW
1176306
A-C6
7Y3967
1
1
A-C8
7Y3966
G-C1
7Y3966
G-C4
7Y3967
ATCH QUICK COUPLER SW
7N2353
(NOTE F)
2
3
1
H-C7
7Y3966
H-C8
7Y3967
1
E-C10
7Y3967
1
GROUND
LIGHT
2
1
IND UNIT
1673611
RD-18
BK-18
H-C6
7Y3952
2
1
3
4
2
1
1
1
2
1
2
1
3
4
5
6
E-C11
7Y3967
1
1
WJ-C2
7Y3966
1
2
ALTERNATOR DIODE
1211022
E-C12
7Y3952
1
2
E-C3
1552252
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
A-C3
3E5179
1
2
C-C1
1552252
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
E-C4
3E5179
1
2
3
4
5
6
7
8
9
10
11
12
A-C5
3E5179
1
2
C-C2
1552252
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
+24 V BATTERY IN
+24 V SWITCHED IN
GROUND
+12 V MEMORY OUT
+12 V SWITCHED OUT
GROUND
ATCH 12V 5A CONVERTER
1191733
(NOTE D)
F-C17
1552273
CLUTCH
BLOWER
GND
+B
ATCH A/C UNIT
1677124
GND
LIGHT
ATCH HEATER UNIT
1785464
ATCH CAB LAMP LH
1831035
RD-18
WH-18
1
1
ATCH CAB LAMP RH
1831035
RD-18
WH-18
1
1
L-C3
7Y3967
1
1
L-C4
7Y3966
L-C5
7Y3967
1
1
L-C6
7Y3966
1
M-C1
7Y3966
M-C2
7Y3967
1
M-C3
7Y3967
1
1
M-C4
7Y3966
ATCH BOOM LAMP LH2
1431617
ATCH BOOM LAMP RH2
1431617
1
N-C1
7Y3966
1
N-C2
7Y3966
4
9
3
5
8
10
AUX SPKR -
AUX SPKR +
LH SPKR -
RH SPKR -
LH SPKR +
RH SPKR +
1
ACC
2
GND
6
ILLUM
ANTENNA
ATCH AM/FM RADIO(OSJ)
1636708
(NOTE D)
7 BACKUP
10
5
8
3
6
2
7
1
9
4
P-C1
1636808
8
7
P-C2
1552264
2
1
3
6
5
4
P-C3
3E3387
+12V OUTPUT
MEMORY
GROUND
+24V INPUT
+24V IGN
ATCH 12V 2.5A CONVERTER
1341346
(NOTE D)
2
1
ATCH TRAVEL PRESS SW
1060179
C-C17
3E3364
86
85
30
87A
87
ATCH TRAVEL ALARM RELAY 2
1400866
86
85
30
87A
87
ATCH TRAVEL ALARM RELAY 1
1400866
1
2
3
4
5
6
IN 1
GND
+B
OUT 2
GND
OUT 1
HYD LOCK TIMER
1321817
E-C8
7Y3958
CONN 7
CONN 8
CONN 9
CONN 10
CONN 11
CONN 40
CONN 13
CONN 12
CONN 66
CONN 67
CONN 69
CONN 64
CONN 63
CONN 62
CONN 65
CONN 16
CONN 14
CONN 15
CONN 17
CONN 38
CONN 61
CONN 60
CONN 70
CONN 46
CONN 45
CONN 42
CONN 39
CONN 41
CONN 43 CONN 44
CONN 59
CONN 58
CONN 57
CONN 56
CONN 47
CONN 32 CONN 33
CONN 18
CONN 21
CONN 19
CONN 20
CONN 22
CONN 23
CONN 37
CONN 34
CONN 35
CONN 36
CONN 51
CONN 52
CONN 50
CONN 53
CONN 55
CONN 54
CONN 49
CONN 48
CONN 31
CONN 30
CONN 29
CONN 28
CONN 25
CONN 24
CONN 27
CONN 26
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
TURN SIGNAL AND WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE ACTION CIRCUIT.
ENGINE SHUTDOWN.
START AID CIRCUIT.
