1994 Caterpillar
SENR6153
March 1994
322 & 322 L Excavators
Electrical System
322:
7WL1-UP
322 L:
8CL1-UP
9RL1-UP
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
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.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
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 Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Connector Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
40 Contacts
CONN1
*
A - 102 - 7868
Controller
B-7
CONN32
D - 5I - 8217
Wiper Motor
F-2
24 Contacts
CONN2
*
A - 102 - 7868
Controller
A-7
CONN30
A
E - 4I - 5407
Monitor
E-2
CONN9
D
A - 102 - 7868
B - 5I - 8395
D-10
CONN12
F - 5I - 8216
X - 7Y -8139
C-6,D-6
CONN8
D
A - 102 - 7868
B - 5I - 8395
E-10
CONN25
A - 102 - 7868
H - 5I - 8215
D-3
CONN13
A
A - 102 - 7868
F - 5l - 8216
C-5
CONN41
C - 5I - 8268
Engine Oil Press Switch
B-12
CONN3
D
A - 102 - 7868
G - 5I - 8237
E-9
CONN21
B
J - 7Y - 3921
Lower Wiper Switch
C-3
CONN5
D
A - 102 - 7868
G - 5I - 8237
F-9
CONN62
R - 7Y - 8105
Converter
D-6
CONN6
D
A - 102 - 7868
G - 5I - 8237
F-9
CONN29
A - 102-7868
Aux Hydraulic Press Switch
E-2
CONN24
A - 102 - 7868
H - 5l - 8215
D-3
CONN23
A - 102 - 7868
K - 7Y - 3868
F-3
CONN18
B
A - 102 - 7868
J - 7Y - 3921
D-4
CONN50
E
B - 5I - 8395
Boom Raise Press Switch
B-1 0
CONN17
C
A - 102 - 7868
L - 102 - 7902
E-5
CONN49
B - 5I - 8395
Fuel Level Sensor
A-5
CONN4
D
B - 5l - 8395
G - 5I - 8237
D-9
CONN51
E
B - 5l - 8395
Implement Swing Press Switch
B-1 0
7 Contacts
CONN14
A
A - 102 - 7868
E - 41 - 5407
C-5
CONN53
F
B - 5l - 8395
Level Solenoid
B-9
CONN10
D
A - 102 - 7868
B - 5I - 8395
D-10
CONN38
B - 5I - 8395
N - 102 - 7866
B-2
CONN34
D - 5l - 8217
F - 5l - 8216
E-2
CONN56
F
B - 5I - 8395
Proportional Reducing Valve
A-9
CONN15
C
A - 102 - 7868
Air Conditioner Unit
D-6
CONN59
B - 5I - 8395
Refueling Pump
A-3
CONN19
B
A - 102 - 7868
J - 7Y - 3921
D-4
CONN48
B - 5I - 8395
ZZ-5l-8370
A-5
CONN60
B - 5I - 8395
C - 5l - 8268
B-12
CONN39
B - 5I - 8395
Refrigerant Switch
F-12
CONN27
B
H-5l-8215
Engine Speed Dial
C-2
CONN57
B - 5I - 8395
S - 4l - 5361
A-3
CONN44
D
D
G - 5I - 8237
Engine Governor Actuator
C-8
CONN43
B - 5I - 8395
Start Aid Coolant Temperature
B-11
CONN15
C
A - 102 - 7868
Heater Unit
E-6
CONN63
B - 5I - 8395
Start Aid Solenoid
E-12
CONN58
A - 102- 7868
A - 102 - 7868
C-8
CONN47
B - 5I - 8395
T-102-7872
B-3
CONN33
A - 102 - 7868
Lower Wiper Motor
F-2
CONN45
B - 5I - 8395
Travel Alarm
D-12
Connector Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN55
F
B - 5I - 8395
Travel Speed Solenoid
B-9
CONN46
T - 102 - 7872
Fine Swing Control Solenoid
A-4
CONN54
F
B - 5I - 8395.
Trenching Solenoid
B-9
CONN37
W - 102 - 7874
Hammer Control Solenoid
B-4
CONN52
E
B - 5I - 8395
Travel Press Switch
C-10
CONN26
B
H - 5I - 8215
Start Aid Switch
CONN7
B - 5I - 8395
W - 102 - 7874
B-3
CONN67
C
L - 102 - 7902
Seat Heater Switch
F-3
CONN75
C
A - 102 - 7868
Seat With Seat Heater
E-4
CONN66
C
L - 102 - 7902
F-3
CONN40
C - 5I - 8268
Air Conditioner Compress Clutch
Solenoid
C-12
CONN73
C
V - 5I - 8375
Fine Swing Control Switch
F-3
CONN42
C - 5I - 8268
Speed Sensor
B-12
CONN74
U - 5I - 8374
V - 5I - 8375
E-5
CONN31
A
E - 4I - 5407
Action Alarm
D-2
CONN11
Y - 51 - 8376
Speaker
B-6
CONN36
F - 5l - 8216
M - 7Y - 8245
E-1
CONN16
X - 7Y - 8139
Y - 5l - 8376
B-6
CONN35
F - 5I - 8216
M - 7Y - 8245
F-1 9 Contacts
CONN65
X - 7Y - 8139
V - 5I - 8376
Radio
C-6
CONN20
B
J - 7Y - 3921
Hammer Control Switch
C-3
CONN28
B
H - 5I - 8215
Low Idle Switch
C-3
CONN22
B
J - 7Y - 3921
Lower Washer Switch
B-3
CONN64
C
K - 7Y - 3868
Horn Switch
F-3
CONN61
R - 7Y - 8105
Converter
D-6
4 Contacts
3 Contacts
2 Contacts
2 Contacts
2 Contacts
3 Contacts
BulletTerminal
10 Contacts
6 Contacts
5 Contacts
4 Contacts
322B/B L Conn. Loc. Chart
5
6
4
3
1
2
1
1
1
7
3
4
2
7
2
4
3
9
7
8
5
3
2
3
23
4
24
25
2
26
27
5
8
28
6
3
32
33
3
31
6
8
4
5
29
30
21
22
19
20
17
18
15
16
14
4
2
1
1
13
11
12
7
10
8
9
1
6
7
C-2
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Engine Governor
C-7 1
Sensor - Hydraulic Oil Temperature
A-8 5F
Alarm - Action
D-2 3A
Sensor - Engine Speed
B-12 20
Alarm - Travel
D-12 2
Solenoid - A/C Compressor Clutch
C-12 21
Alternator
B-11 3
Solenoid - Engine Shutdown
C-12 22
Antenna
C-6 4
Solenoid - Fine Swing
B-4 23
Battery
E-1 0 5
Solenoid - Hammer Control
B-4 24
Breaker - Alternator
D-8 5D
Solenoid - Level
A-9 1 F
Controller
B-7 6
Solenoid - Proportional Reducing Valve
A-9 4F
Converter - Voltage
D-6 7
Solenoid - Start Aid
E-12 25
Dial - Engine Speed
C-2 3B
Solenoid - Travel Speed
B-9 3F
Fuse - Block
F-7, 8, 9 7D
Solenoid - Trenching
B-9 2F
Heater - Seat
E-4 33
Speaker
B-6 37
Horns
A-2, B-2 8
Switch - Aux Hydraulic Pressure
E-2 26
Lamp - Boom
A-2, B-2 9
Switch - Boom Raise Pressure
B-10 3E
Lamp - Cab
E-1, F-1 10
Switch - Disconnect
D-9 6D
Lamp - Chassis
A-2 11
Switch - Engine Oil Pressure
B-12 27
Lamp - Dome
C-6 12
Switch - Fine Swing Control
F-3 4C
Lighter - Cigar
E-3 1A
Switch - Governor Backup
B-5 7B
Meter - Service
E-2 2A
Switch - Hammer Control
C-3 5B
Monitor
E-2 4A
Switch - Seat Heater
F-3 5C
Motor - Lower Wiper
F-2 13
Switch - Horn
F-2 3C
Motor - Refueling Pump
A-3 17
Switch - Implement Swing Pressure
B-10 1 E
Motor - Starter
B-12 14
Switch - Low Idle
C-3 2B
Motor - Washer
E-12 15
Switch - Lower Washer
B-3 8B
Motor - Wiper
F-2 16
Switch - Lower Wiper
C-3 9B
Radio
C-6 38
Switch - Neutral Start
E-2 28
Relay - Boom Lamp
E-8 8D
Switch - Pump Backup
F-4 2C
Relay - Chassis/Cab Lamp
E-8 8D
Switch - Refrigerant Low Pressure
F-1 2 29
Relay - Fine Swing
E-8 8D
Switch - Refueling
A-5 30
Relay - Horn
E-7 8D
Switch - Refueling Pump
A-3 31
Relay - Main
D-7 4D
Switch - Speed Change
B-4 6B
Relay - Refueling Pump
E-7 8D
Switch - Starter
C-2 1B
Relay - Starter
D-7 3D
Switch - Start Aid
C-2 48
Relay - Washer
E-8 8D
Switch - Start Aid Coolant Temperature
B-12 32
Relay - Wiper
E-8 8D
Switch - Travel Pressure
B-10 2E
Resistor
D-7 2D
Terminal Block
D-9 10
Resistor - Backup
E-5 1C
Unit - Air Conditioner
D-6 35
Sensor - Engine Coolant Temperature
C-12 18
Unit - Heater
E-6 36
Sensor - Fuel Level
A-5 19
322B/B L Comp. Loc. Chart
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37
35
33
36
38
7
F
9
8
10
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
35
34
37
36
33
33
34
35
36
37
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37
35
33
36
38
7
F
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Machine Harness Connector and Component Locations
1
2
3
4
5
6
7
8
2
1
4
3
3
4
5
8
6
9
1
2
4
3
1
2
7
1
3
4
5
6
7
8
9
10
3
4
5
6
1
2
1
2
3
4
5
6
7
8
9
3
4
5
6
8
1
2
7
AREA D
3200348
AREA C
3220177
AREA B
3220102
AREA A
3300158
1
2
3
4
3
1
3
4
5
3
1
2
1
AREA E
3250510
AREA F
3220103
* = Connector is located at the component. D = Connector in relay box.
A = Connector at the bottom of the cab. E = Connector on main control valve.
B = Connector in right console.
F = Connector near pilot oil manifold.
C = Connector in left console.
©
All Rights Reserved
Printed in U.S.A.
D760-YL
34568101112
8101112
RADIO FOR OUTSIDE JAPAN
RADIO FOR JAPAN
BK
RD
200-BK
200-BK
RD
BK-18
RD-18
210-BK
BK-18
135-BU
325-PK
OR-18
BK
575-YL
200-BK
200-BK
307-OR
506-PU
6 5 4
307-OR
152-BU
575-YL
576-PK
306-GN
320-OR
501-GN
118-GY
500-BR
2 1
200-BK
200-BK
200-BK
F
E
D
309-GY 308-YL
3 2
1
C
B
A
OPERATOR STATION
RELAY PANEL
200-BK
575-YL
152-BU
576-PK
578-BU
152-BU
575-YL
152-BU
576-PK
200-BK
235-BK
235-BK
235-BK
200-BK
586-BR
320-OR
OR
BK
200-BK
616-BU
616-BU
200-BK
BK/PK
152-BU
576-PK
306-GN
BK
BK-18
BK-18
326-PU
149-PU
105-BR
310-PU
5
114-GN
WH
BK
325-PK
149-PU
149-PU
115-PK
115-PK
115-PK
114-GN
114-GN
786-GN
200-BK
586-BR
200-BK
200-BK
365-YL
200-BK
325-PK
616-BU
200-BK
308-YL
501-GN
500-BR
322-GY
607-PK
365-YL
RD
BK
200-BK
118-GY
PK
BU
RD
RD
BK
RD
BK
200-BK
200-BK
200-BK
OPERATOR STATION
F
E
D
200-BK
200-BK
200-BK
C
BK
RD
BR
GN
BU
PK
BK
200-BK
519-PK
B
RELAY PANEL
323-WH
365-YL
306-GN
RELAY PANEL
578-BU
BK
BK
122-BU
200-BK
200-BK
235-BK
495-GN
200-BK
266-BK
491-PK
BK
YL
325-PK
365-YL
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
615-YL
500-BR
501-GN
118-GY
A
506-PU
586-BR
147-PU
200-BK
2
200-BK
4
3
2
1
142-BU
142-BU
308-YL
615-YL
323-WH
500-BR
501-GN
118-GY
113-OR
120-YL
152-BU
103-YL
142-BU
152-BU
118-GY
121-YL
184-BU
103-YL
114-GN
323-WH
168-GN
168-GN
168-GN
513-OR
265-BK
607-PK
200-BK
616-BU
322-GY
307-OR
607-PK
306-GN
307-OR
1
200-BK
320-OR
200-BK
200-BK
200-BK
200-BK
322-GY
322-GY
200-BK
322-GY
616-BU
200-BK
200-BK
616-BU
200-BK
575-YL
152-BU
576-PK
118-GY
200-BK
500-BR
501-GN
9
7
9
7
A
A
828-WH
830-OR
830-OR
JJ 106-0027 E-5
828-WH
TRAVEL SW
(RIGHT)
4I-5387
TRAVEL SW
(LEFT)
4I-5387
200-BK
830-OR
200-BK
828-WH
1
2
200-BK-14
200-BK 200-BK
ATCH
RADIO SW
7X-6386
122-BU
120-YL
122-BU
120-YL 120-YL
122-BU 122-BU
A537-PK
124-GN
A769-GY
200-BK
200-BK
D760-YL
ATCH SPEAKER 7Y-5505
200-BK
A
2
1
ATCH
SEAT WITH
SEAT HEATER
105-9528
124-GN
519-PK
L14
124-GN
A537-PK
2
1
B786-BU
200-BK 2
D760-YL
A
1
200-BK
103-YL
122-BU
1
615-YL
2
33
1
H
2
L11
ATCH
FINE SWING
CONT SW
7X-6386
V
A
Y
509-WH
1
2
508-PU
F
200-BK
X
Y
X
TO RADIO
R
R
R
R
2
4
1
3
ATCH
CONVERTER
7T-8000
1
2
3
2
1
GROUND
+ BATTERY
+12 VOLT
GROUND
200-BK
B747-PU
147-PU
124-GN-14
519-PK
615-YL
103-YL
200-BK-14
ATCH
A/C UNIT
105-9464
105-9406(NOTE B)
2
A
1
3
4
5
NOTE B : USE WITH OUTSIDE JAPAN.
NOTE D : USE WITH COLD WEATHER.
D761-GN
ZZ 5I-8370 A-5
D761-GN
W 102-7874 B-3
D760-YL
L23
BK-00
200-BK 306-GN
308-YL
607-PK
D760-YL
D761-GN
D760-YL
147-PU
147-PU
D761-GN
147-PU
607-PK
142-BU-14
D761-GN
616-BU
147-PU
ATCH
FINE SWING
RELAY
7Y-5490
147-PU
FINE SWING
SPEAKER (-)
ATCH
ANTENNA
106-0036
D760-YL
ATCH
FINE SWING
SOL
7I-0124
200-BK
D760-YL
BK-00
200-BK
200-BK
PRESSURE SW
106-0092
200-BK
1
2
A761-PU
184-BU
A983-BU
792-OR
791-PK
B
786-GN
200-BK
L21
200-BK
B751-YL
A763-GY
A761-PU
113-OR
L23
304-WH-8
101-RD-6
109-OR-6
101-RD-14
109-OR-6
101-RD-14
101-RD-6
309-GY
109-OR-6
XX
G
G
WW
G
GG
YY
109-OR-8
G
A761-PU
792-OR
791-PK
112-PU-14
786-GN
112-PU-14
184-BU
112-PU-14
A983-BU
B751-YL
A763-GY
113-OR
615-YL
120-YL
147-PU
152-BU
124-GN-14
129-BU
118-GY
20A
15A
142-BU-14
113-OR
10A
B751-YL
A763-GY
A761-PU
200-BK
113-OR
A769-GY
LEVEL FINISH
SOL
4I-5674
1
2
B955-YL
B956-PK
113-OR
201-BK
E
H
511-BR
512-GN
F
Y
X
Y
1
ATCH
ANTENNA
106-0036
3
1
4
2
ILLUMI (+)
ACC (+)
SPEAKER (+)
GND
BACKUP
H
B
AB
PLATFORM
D760-YL
124-GN-14
103-YL
235-BK
615-YL
D761-GN
615-YL
103-YL
500-BR
501-GN
D760-YL
118-GY
113-OR
129-BU
403-GN
410-WH
B955-YL
B956-PK
B731-WH
B730-OR
A769-GY
A768-BU
185-YL
185-YL
200-BK
147-PU
586-BR
152-BU
A763-GY
B751-YL
B739-WH
200-BK-6
B789-BR
B740-OR
B790-OR
B786-BU
326-PU
308-YL
310-PU
105-BR
A758-BR
A757-GY
A756-BU
D764-GN
A755-PK
RD-00
200-BK
320-OR
10
1
2
3
4
5
9
8
7
6
B734-GY
306-GN
SPEAKER (-)
1
2
RADIO FOR JAPAN
D764-GN
L
WIPER
4I-6838
+
S
L4
+1
-
MOTOR
L7
L7
5
4
3
1
BB
B B
BB
AA
EE
B
B
B
B
GB
GA
G
G
A
SPEAKER (+)
C
B
C
BB
C
B
C
C
C
C
RESISTOR
7Y-8242
ATCH
AUX HYD SW
ATCH
LOWER WIPER
4I-5019
129-BU
K
D
ZZZZ
MOTOR
MOTOR
-
+1
S
+
B751-YL
200-BK
B740-OR
185-YL
B789-BR
B739-WH
4
6
1
3
B731-WH
5
2
B790-OR
A763-GY
185-YL
2
147-PU
D761-GN
1
185-YL-14
578-BU
586-BR
2
7
8
9
5
4
3
6
1
10
B730-OR
D761-GN
2
1
10
1
2
3
4
5
9
8
7
6
W
586-BR
W
200-BK
3
2
1
T
200-BK
T
578-BU
311-WH
311-WH
WW
6
310-PU
200-BK
513-OR
1
152-BU
B955-YL
2
2
1
A537-PK
403-GN
A770-PK
323-WH
112-PU-14
147-PU
1
2
A768-BU
3
A771-PU
A769-GY
5
4
3
2
1
A768-BU
10
763-BU
1
2
B965-GY
B964-YL
142-BU-14
491-PK
1
D761-GN
112-PU-14
1
2
586-BR
616-BU
3
322-GY
607-PK
323-WH
2
365-YL
112-PU-14
4
112-PU-14
235-BK
495-GN
A768-BU
A762-PU
B
A
147-PU
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 322 EXCAVATOR. (5I-8350-02)
HH 5I-8398 E-10
GG 7Y-3946 E-10
FF 5I-8399 E-11
EE 7Y-3948 A-12
DD 7Y-3947 D-9
CC 5I-8397 E-10
BB 7Y-3946 E-10
AA 5I-8396 E-11
CABLE AS.
A
VV 7Y-3941 D-7
WIRE AS.
A
R 7Y-8105 D-6
112-PU-14
U 5I-8374 D-3
CAB
791-PK
4
788-YL
V 5I-8375 E-5
405-GY
PLATFORMCHASSIS
5
9
326-PU
PLATFORM
B
492-GY
101-RD-6
304-WH-8
A A
E
E
M M
AA
VV
J
B
B
P 102-7867 A-2
N 102-7866 B-2
M 7Y-8245 F-1
L 102-7902 E-5
K 7Y-3868 F-3
J 7Y-3921 C-3
H 5I-8215 D-3
G 105-9964 F-9
F 5I-8216 E-2
E 111-4712 E-2
D 5I-8217 E-2
C 5I-8268 B-12
A 106-0033 D-4
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
IDENT PART NO. LOC
403-GN
A762-PU
C
B
109-OR-6
B
F
E
F
A
B
B
B
B
A
J
309-GY
HARNESS AS.
L
235-BK
120-YL
D764-GN
CHASSIS
B965-GY
A
F
D
CAB E
F
F
B
788-YL
ATCH
BOOM LAMP
5I-8250
8
B964-YL
A771-PU
A762-PU
788-YL
763-BU
A769-GY
A768-BU
763-BU
495-GN
L1
L2
L4
152-BU
492-GY
B965-GY
B964-YL
491-PK
586-BR
616-BU
BK-00
142-BU-14
405-GY
1
2
321-BR
491-PK
L1
B956-PK
CHASSIS
A769-GY
586-BR
304-WH-8
310-PU
616-BU
OPERATOR STATION OPERATOR STATION
101-RD-6
326-PU
576-PK
109-OR-6
403-GN
578-BU
322-GY
519-PK
586-BR
BK-00
309-GY
G
607-PK
A769-GY
616-BU
A768-BU
322-GY
A768-BU
323-WH
B734-GY
121-YL
365-YL
410-WH
365-YL
235-BK
A758-BR
506-PU
A757-GY
495-GN
A756-BU
607-PK
A762-PU
788-YL
405-GY
A755-PK
326-PU
D761-GN
513-OR
B786-BU
103-YL
142-BU-14
NOTE E : USE WITH AM RADIO.
B730-OR
FUEL
SENSOR
105-9993
5
6
7
2
B956-PK
101-RD-6
B955-YL
365-YL
B789-BR
S4
S3
S2
S1
COM
B790-OR
403-GN
B739-WH
112-PU-14
304-WH-8
B740-OR
326-PU
B730-OR
B731-WH
311-WH
185-YL
10
A771-PU
403-GN
1
109-OR-6
309-GY
2
3
B731-WH
4
200-BK
6
4
3
1
5
2
6
4
3
152-BU
B789-BR
575-YL
A769-GY
308-YL
ATCH
REFUELING SW
5C-6108
492-GY
RD-00
A768-BU
403-GN
OPTION SOLENOID
575-YL
COOLANT LEVEL SW
ENG OIL LEVEL SW
OPTION SENSOR
OPTION SW 1
OPTION SW 2
B956-PK
200-BK
NOTE F : USE WITH AM/FM RADIO.
OPTION RELAY 3
OPTION RELAY 2
OPTION RELAY 1
GLOW
RS232C RxD
RS232C TxD
PWM OUT -
PWM OUT +
200-BK
149-PU
ATCH
CAB LAMP
5I-8250
ATCH
AM/FM RADIO
7Y-5437
323-WH
115-PK
405-GY
ATCH
REFUELING PUMP
6C-5572
ATCH
REFUELING
PUMP SW
6T-9442
S
B
B
1
5
5
200-BK
200-BK
2
9
501-GN
308-YL
200-BK
B789-BR
200-BK
615-YL
2
ATCH
REFRIGERANT SW
105-9344
105-9408(NOTE A,NOTE B)
185-YL
ALTERNATOR
9W-3043
VV
322-GY
308-YL
121-YL
HORN SW
6I-5088
HORN
7Y-3919
500-BR
147-PU
SERVICE
METER
6T-7337
ATCH
CAB LAMP
5I-8250
152-BU
A
113-OR
A770-PK
A768-BU
320-OR
B955-YL
YL
1
A771-PU
124-GN-14
200-BK
129-BU
185-YL-14
105-BR
H
A
MM
N
P
P
N
306-GN
DOME LAMP
096-0721
200-BK
HYD OIL
SENDER
4I-5394
WASHER RELAY
WIPER RELAY
CHASSIS LAMP RELAY
BOOM LAMP RELAY
GND
GND
+B (24V)
BACKUP SW 1
RS485 -
RS485 +
BACKUP SW 4
B964-YL
GOV ACTR -
ENG PICKUP SENSOR -
GOV ACTR SENSOR
TRAVEL SW (RIGHT)
ENG PICKUP SENSOR +
TRAVEL SOLENOID
FUEL LEVEL SENSOR
COOLANT SENDER
HYD OIL TEMP SENDER
TRAVEL ALARM
306-GN
B790-OR
615-YL
142-BU
410-WH
B965-GY
B739-WH
142-BU
763-BU
ATCH
TRAVEL ALARM
3T-1444
142-BU
NOTE C : USE WITH SHORT BOOM.
200-BK
PROPORTIONAL
REDUCING
VALVE
ATCH
AM RADIO
7Y-5433
301-BU-10
L26
AA
B790-OR
BU
578-BU
B789-BR
B789-BRB790-OR
410-WH
B790-OR
185-YL
B740-OR
+
-
1
2
CAB/CHASSIS LAMP
200-BK
607-PK
322-GY
323-WH
200-BK-10
112-PU-14
506-PU
308-YL
491-PK
A771-PU
B965-GY
200-BK
323-WH
500-BR
506-PU
B731-WH
L16
586-BR
519-PK
310-PU
578-BU
103-YL
2
B964-YL
763-BU
118-GY
495-GN
ENG GOV
ACTR
7Y-3914
200-BK
A761-PU
L20
2
1
G
7
6
L20
L28
1
2
101-RD-6
1
326-PU
492-GY
321-BR
L16
A762-PU
ATCH
START AID
COOLANT TEMP SW
8C-3569
L25
616-BU
786-GN
184-BU
L25
L20
A983-BU
792-OR
405-GY
788-YL
492-GY
200-BK
200-BK
405-GY
309-GY
L19
L15
109-OR-6
L15
326-PU
403-GN
325-PK
L18
L16
5
513-OR
L14
4
L29
3
L5
200-BK-6
513-OR
200-BK
L4
311-WH
J
T
J
J
H
2
788-YL
A762-PU
L8
ATCH
START AID
9G-4365
YY 4I-5450 D-9
RD-00
403-GN
L9
BK-00
B
200-BK
L13
200-BK-10
L8
200-BK
L9
BK-00
P 5I-8369 A-2 NOTE C
301-BU-10
L5
RD-00 RD-00
2
2
B734-GY
308-YL
410-WH
1
A758-BR
A757-GY
L8
A756-BU
A755-PK
B786-BU
B730-OR
B956-PK
A769-GY
4
B955-YL
3
B789-BR
B790-OR
RD-00
A768-BU
D760-YL
185-YL
124-GN
A537-PK
122-BU
147-PU
B747-PU
122-BU
830-OR
828-WH
B739-WH
2
1
830-OR
828-WH
830-OR
828-WH
B740-OR
495-GN
L9
109-OR-8
235-BK
B730-OR
365-YL
365-YL
506-PU
BK-00
323-WH
607-PK
B731-WH
322-GY
XX 4I-5447 D-9
L17
142-BU-14
L13
616-BU
586-BR
322-GY
L9
200-BK
2
1
513-OR
A
200-BK
121-YL
1
T
COOLANT TEMP
SENDER
4I-5394
501-GN
304-WH-8
MOTOR
C
C
C B
B
304-WH-8
B
FF
AA
B
BATMTR
SG
B
SWING PRESS SW
102-8041
B
L22
YY
XX
WW
WW
HH
DD
CC
200-BK
60A
BB
LL
JJ
506-PU
JJ
L2
L1
B
K
E
L2
L6
L6
START
KEY
SWITCH
9G-7641
200-BK
H
SS
403-GN
Y 5I-8376 C-6 NOTE F
GOV ACTR +
S 4I-5361 A-3
T 102-7872 B-3
491-PK
B 111-4701 B-9
142-BU-14
763-BU
B965-GY
B964-YL
A768-BU
A769-GY
PU
PLATFORM
ATCH
REFUELING RELAY
7Y-5490
321-BR
1
A
129-BU
519-PK
113-OR
2
578-BU
L17
2
WW 4I-5448 D-9
118-GY
311-WH
TRAVEL SW (LEFT)
A755-PK
501-GN
BK
576-PK
200-BK
L17
5
5
4
3
B751-YL
1
STARTER
8C-4774
B751-YL
B789-BR
A763-GY
D764-GN
RD-00
321-BR
JJ
310-PU
200-BK
A
121-YL
X 7Y-8139 C-6 NOTE E
ATCH SPEAKER 7Y-5505(NOTE F)
8
L11
L12
L12
L10
7
5
U
2
1
2
A
L15
6
L10
L
B
4
3
L16
B
9
8
L21
6
1
105-BR
410-WH
307-OR
615-YL
326-PU
B-
RD-00
B789-BR
120-YL
615-YL
L6
L2
L29
RADIO FOR OUTSIDE JAPAN
1
2
615-YL
501-GN
118-GY
WASHER
7T-8890
ATCH
LOWER WASHER
7T-8890
311-WH
321-BR
310-PU
2
1
308-YL
310-PU
500-BR
1
4
586-BR
200-BK
D761-GN
L1
H
A
A756-BU
H
A
1
500-BR
B739-WH
B790-OR
615-YL
B740-OR
A763-GY
Z 106-0026 E-5
103-YL
2
1
2
17
ENG/PUMP
CONTROLLER
106-0138
181
2
24
23
16
13
3
12
4
5
6
18
14
9
22
118-GY
1
7
8
21
2
20
B
19
17
15
10
11
10
11
21
31
23
28
8
9
6
7
19
20
30
40
36
37
38
39
29
27
13
2
1
CHASSIS
LAMP
5I-8251
HEATER UNIT
4I-4650
4I-1275(NOTE B)
SPEED
CHANGE SW
7N-8008
GOV
BACKUP SW
3T-4405
ATCH HAMMER
CONT SW
7X-6386
ENGINE
SPEED
DIAL
7Y-5465
V
PUMP
BACKUP SW
3T-4405
ATCH
HAMMER
CONT SOL
7Y-5005
CIGAR
LIGHTER
9W-0335
NEUTRAL
START SW
9W-2150
ACTION ALARM
3E-6328
MONITOR
7Y-5500
ONE TOUCH
LOW IDLE SW
6I-5088
LOW IDLE SW
578-BU
ATCH
BOOM LAMP
5I-8250
24
4
3
14
2
35
25
1
ATCH LOWER
WASHER SW
7X-6387
3
2
168-GN
105-BR
308-YL
BACKUP SW 2
1
15
16
26
SIG
GND
OR 24V+
M
A768-BU
184-BU
2
4
SIG
GND
5V+
5
113-OR
EPR VALVE +
EPR VALVE -
1
3
34
33
MONITOR ALARM
KEY SW
AUX HYD PRESS. SW
32
22
L21
L25
12
506-PU
200-BK
519-PK
121-YL
513-OR
R
C
L27
S
B
A983-BU
792-OR
200-BK
791-PK
786-GN
267-BK
266-BK
265-BK
OFF
264-BK
235-BK
235-BK
RELAY PANEL
ON
ST
ENG
SHUTDOWN SOL
8C-3663
ENG OIL
SW
6T-1546
CHASSIS
B
B751-YL
BOOM RAISE PRESS. SW
D764-GN
BK-18
RD-18
SPEED SENSOR
3E-7886
121-YL
200-BK
A983-BU
G
109-OR-6
200-BK
BK-00
A Z
REFUELING
120-YL
D760-YL
L26
7
L3
ATCH SEAT
HEATER SW
7X-6386
200-BK-14
103-YL
615-YL
500-BR
501-GN
118-GY
120-YL
2
1
6
122-BU
7
8
9
5
HHGGFF
CC
BB
BK-00
POS
NEG
B734-GY
4
NEG
POS
BATTERY
3T-5760
3
2
POS
NEG
L27
DISCONNECT SW
7N-0718
7N-0719 (NOTE D)
BLOCK AS.
7Y-5499
LOWER WASHER/WIPER
FUSE
10A 9W-1442
15A 9W-1441
20A 9W-1446
L14
L22
LA
L14L14
L22L18
L21
L19
L24
TRAVEL SPEED
SOL
4I-5674
TRENCHING
SOL
4I-5674
L24
L20
L16
NEG
POS
L27 L28
1
10
5
7
8
3
2
1
9
4
HAMMER
A/C HEATER
6
10
CIGAR LIGHTER
BACKUP
START RELAY
9X-8124
MAIN RELAY
3T-0376
ALT BREAKER
9S-0174
200-BK
KEY SW
WASHER/WIPER
TRAVEL ALARM
ENG/PUMP CONT
DOME LAMP
HORN
SOLENOID
MONITOR
RADIO
10
1
2
3
4
5
9
8
7
BOOM LAMP
6
7
8
9
5
4
3
2
1
10
HORN RELAY
7Y-5490
BOOM LAMP RELAY
7Y-5490
WASHER RELAY
7Y-5490
CAB/CHASSIS LAMP
RELAY
7Y-5490
WIPER RELAY
7Y-5490
6
10A
10A
3
10A
10A
2
1
BU-18
B+
WD
ALT
ATCH
A/C CLUTCH
SOL
105-9362
101-1759(NOTE B)
T
10A
10A
10A
20A
ALTERNATOR (R TERM.)
10A
10A
15A
10A
HARNESS CODE 1
HARNESS CODE 2
HARNESS CODE 3
HARNESS CODE 4
152-BU
103-YL
320-OR
147-PU
124-GN-14
129-BU
185-YL-14
105-BR
113-OR
ENG OIL PRESS. SW
A758-BR
ATCH
START AID SW
7X-6387
2
615-YL
A757-GY
615-YL
519-PK
124-GN-14
A763-GY
STRAP AS.
7G-1060
HYD OIL LEVEL SW
A757-GY
10A
10A
200-BK
B790-OR
THROTTLE DIAL S4
THROTTLE DIAL S3
THROTTLE DIAL S2
THROTTLE DIAL S1
IMPLEMENT SW
L28
TRENCHING SOLENOID
LEVEL FINISH SOLENOID
2
1
113-OR
2
1
2
1
200-BK
A758-BR
403-GN
B
+
-
B786-BU
129-BU
GROUND
DATA -
DATA +
A756-BU
A755-PK
10A
308-YL
200-BK
15A
10A
K
+BATTERY
4
3
2
U
U
L10
10A
B734-GY
B734-GY
2
1
B786-BU
1
200-BK
10
200-BK
200-BK
200-BK200-BK
2
1
1
2
HORN
7Y-3920
ATCH LOWER
WIPER SW
7X-6388
2
1
200-BK
L3
3
BACKUP
RESISTOR
102-8015
NOTE A : NORMALLY OPEN BEFORE REFRIGERANT CHARGE.
ATCH
BATTERY
3T-5760
(NOTE D)
CONN 74
CONN 17
CONN 76
CONN 77
CONN 75
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.
ENG/PUMP CONTROLLER CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE SHUTDOWN CIRCUIT.
START AID CIRCUIT.
CONN 15
CONN 15
CONN 62
CONN 61
CONN 12
CONN 16
CONN 11
CONN 12
CONN 65
CONN 1
CONN 58
CONN 2
CONN 53
CONN 56
5I-8368
CONN 54
CONN 55
BOOM RAISE
IMPLEMENT
CONN 51
CONN 50
CONN 60
MOTOR
CONN 43
CONN 42
ENGINE
CONN 41
CONN 40
CONN 45
CONN 63
CONN 39
CONN 5
CONN 6
CONN 8
CONN 3
CONN 4
CONN 9
CONN 10
CONN 44
CONN 13
CONN 18CONN 19
CONN 66
CONN 67
CONN 73
CONN 64
CONN 31
CONN 25A
CONN 25B
CONN 25
CONN 24
CONN 28
CONN 48
CONN 49
CONN 14
CONN 37
CONN 46
CONN 57
CONN 59
CONN 47
CONN 7
CONN 22
CONN 21
CONN 20
CONN 27
CONN 26
CONN 38
CONN 33
CONN 32
CONN 29
CONN 52
CONN 79
CONN 35
CONN 36
CONN 23
CONN 30
CONN 34