4
18
15
3
14
13
11
9
1
17
5
7
6
10
8
16
2
12
AREA A
19
20
22
21
4 2
1 5
6
3
AREA B
1
AREA C
2
1
2
AREA D
3
4
5
6
7
8
1
5
3
9
2
10
4
AREA E
11
12
13
14
15
16
17
18
5
2
1
3
4
AREA F
3 4
1 2
AREA G
3
1
2
AREA H
2
1
AREA J
Machine Harness Connector And Component Locations
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
A/C Switch Panel D-4
1A
Relay - Timer J-7
6E
Actuator - Engine Governor A-8
1
Relay - Wiper J-8
5F
Air Heater B-8
2
Resistor - Backup J-7
9E
Alarm - Travel D-9
3
Sender - Coolant Temperature B-9
12
Alternator B-9
4
Sender - Hyd. Oil Temp. (High Ambient) B-5
2H
Antenna D-6
5
Sender - Hydraulic Oil Temperature A-5
1H
Battery D-9
6
Sensor - A/C Photo E-1
10A
Block - Terminal G-7
1E
Sensor - Engine Speed Pickup B-8
13
Breaker - Alternator H-9
2E
Sensor - Fuel Level A-6
3H
Controller - Engine/Pump F-3
2A
Sensor - Pump Pressure A-8
1J
Converter - 12V 5A F-6
3A
Socket - 12V 5A E-6
11A
Fuse Block J-8,J-9
3E
Solenoid - A/C Compressor Clutch B-8
14
Heater Switch Panel D-4
1A
Solenoid - Engine/Pump Control A-8
2J
Horn C-2
7
Solenoid - Hydraulic Lock A-4
1G
Lamp - Boom C-1
8
Solenoid - Travel Speed A-4
2G
Lamp - Cab G-1,H-1
9
Speaker E-6
12A
Lamp - Chassis C-2
10
Switch - Backup EPR Valve G-2
2B
Lamp - Dome E-6
4A
Switch - Backup Governor G-3
4B
Lighter - Cigar D-2
5A
Switch - Blade Pressure J-1
1D
Meter - Service D-2
6A
Switch - Disconnect G-9
10E
Monitor F-1
7A
Switch - Engine Oil Pressure B-8
15
Motor - Fan F-6
18A
Switch - Horn J-2
1C
Motor - Starter A-9
11
Switch - implement Pressure A-4
3G
Motor - Washer J-6
4E
Switch - Key G-2
5B
Motor - Wiper E-1
8A
Switch - Neutral Start Limit J-3
2D
Radio - AM D-5
9A
Switch - One Touch Low Idle H-1
3B
Radio - AM/FM D-5
9A
Switch - Throttle Position G-2
1B
Radio - AM/FM Cassette D-5
9A
Switch - Travel Alarm Cancel D-4
14A
Relay - Cab Lamp H-8
1F
Switch - Travel Pressure B-4
4G
Relay - Chassis/Boom Lamp H-9
2F
Switch - Window Limit G-1
15A
Relay - Heater H-7
5E
Switch Panel D-2
13A
Relay - Horn J-9
3F
Unit Air Conditioner F-6
16A
Relay - Neutral Start J-7
4F
Unit Heater F-6
16A
Relay - Start Control J-7
7E
Unit IND H-2
6B
Relay - Starter H-7
8E
Wiper Control D-2
17A
Machine locations are repeated for components located close together.
F = Inside of fuse box.
A = Inside of cab.
G = Around control valve.
B = Right console.
H = Around fuel/hydraulic oil tank.
C = Left console. J = Around hydraulic pump.
D = Backside of platform.
E = Around relay panel.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 G-9 11E
CONN 2 F-9 12E
CONN 3 F-8 13E
CONN 4 F-8 14E
CONN 5 F-8 15E
CONN 6 E-7 16E
CONN 7 E-7 17E
CONN 8 E-7 18E
CONN 9 E-6,D-5 19A
CONN 10 F-6 20A
CONN 11 F-5 21A
CONN 12 F-5 21A
CONN 13 F-4 22A
CONN 14 F-4 22A
CONN 15 H-3 3D
CONN 16 J-3 2C
CONN 17 J-3 2C
CONN 18 H-2 4D
CONN 19 H-2 5D
CONN 20 C-2 16
CONN 21 C-2 17
CONN 22 H-1 18
CONN 23 H-1 19
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.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD
Battery (+)
509 WH
Radio Speaker - Left (Common)
103 RD
Dome Lamp / Monitor / Radio Backup
511 BR
Radio Speaker - Right
105 RD
Key Switch
512 GN
Radio Speaker - Right (Common)
109 RD
Alternator Output (+) Terminal
521 YL
A/C Unit To A/C Compr. Clutch Solenoid
110 GN
Timer Relay Output
530 OR
Washer Switch To Wiper Control
112 PU
Main Relay Output
592 BU
DC/DC Converter Power Output
114 RD
Horn Relay
A513 RD
DC/DC Converter Memory Output
115 PK
Cab / Chassis Lamp Relay
A579 OR
Wiper Motor (+)
116 BR
Fan Relay Output
A580 BR
Wiper Motor (-)
117 YL
Wiper Relay
A581 GN
Wiper Motor Raise
118 GY
Wiper Control / Washer
A582 PU
Wiper Motor Stop
119 PK
Cab Fan
A584 BU
Front Window Limit Switch To Wiper Control
120 YL
24V To 12V Converter Input And Memory
A588 GN
Neutral Start Limit Switch To Neutral Start Relay
124 GN
Air Conditioner / Heater
C537 GN
A/C Photo Sensor (+) Signal
129 BU
Cigar Lighter
C538 OR
A/C Photo Sensor (-) Signal
135 BU
24V To 12V Converter Output (+)
C560 OR
Speaker (+)
147 PU
Quick Coupler Switch / Travel Speed Solenoid
C566 PK
Speaker (-)
151 GN
Neutral Start Limit Sw To Hyd Lock Sol Relay Lighting Circuits
175 RD
Fan
607 PK
Flood Lamp - Front
180 GN
Aux Ckt
615 YL
Cab Flood Lamp
184 RD
Engine/Pump Control (+) Battery
616 BU
Boom Flood Lamp
190 PK
Engine Governor Actuator (+) Battery
645 PK
Cab Lamp Relay
Ground Circuits Control Circuits
200 BK
Main Chassis
763 BU
Travel Speed Solenoid
210 BK
24V To 12V Converter Output (-)
780 PU
ATCH Quick Coupler Switch
235 BK
Electronic Pump Control
A755 PK
Throttle Switch #1
Basic Machine Circuits
A756 BU
Throttle Switch #2
303 BR
Key Switch ACC Position
A757 GY
Throttle Switch #3
304 WH
Starter Relay #1 Output
A758 BR
Throttle Switch #4
306 GN
Starter Relay Coil To Neutral Start Switch
A761 PU
Governor Actuator Feedback To E/P ECM
307 OR
Key Switch To Neutral Start Switch
A762 PU
Engine Speed (-)
309 GY
Alternator Regulator Terminal
A768 BU
Pump Control Valve #1 (+)
310 PU
Key Switch To Heater Relay
A769 GY
Pump Control Valve #2 (-)
320 RD
Horn Relay Coil To Horn Switch
A770 PK
Backup EPR Valve Switch To Resistor
321 BR
Backup Alarm/ Lamp/ Travel Alarm
A771 PU
Implement Pressure Switch
322 GY
Warning Horn (Forward)
E703 WH
Travel Alarm Cancel
330 YL
Neutral Start Relay Coil
F773 OR
Governor Accelerator
332 BU
Monitor/Switch Panel
F774 WH
Governor Decelerator
Monitoring Circuits
K776 GN
Alternator (L) Terminal
403 GN
Engine/Pump Control To Alternator (P) Terminal
M736 BU
Governor Command
405 GY
Engine/Pump Control To Oil Pressure Switch
877 YL
Heater Relay To Air Heater
439 YL
Lamp Indicator
892 BR
CAT Data Link (-)
441 OR
Engine Coolant Temperature
893 GN
CAT Data Link (+)
442 GY
Hydraulic System Temperature
K909 BU
Backup Switch (+)Battery
447 PK
Fuel Level
L968 OR
Electronic Pump Control Pressure Valve (-)
491 PK
Engine/Pump Control To Hyd Oil Temp Sender
L969 WH
Electronic Pump Control Pressure Valve (+)
492 GY
Engine/Pump Control To Coolant Temp Sender
L970 GY
Engine/Pump Control To Switch Common
Accessory Circuits
L971 GN
Engine/Pump Control To Travel Pressure Switch
501 GN
Wiper - Front (Low)
L972 BU
Engine Pump Control To Low Idle Switch
506 PU
Washer - Front
N933 PU
Low Idle Indicator
508 PU
Radio Speaker - Left
T967 YL
Pump Discharge Mean Pressure
Off Machine Switch Specification
Part No. Function Actuate Deactuate
Contact Position¹
5I-8005 Engine Oil Pressure Switch
49 ± 9.8 kPa
(7.11 ± 1.42 psi)
29 kPa MAX
(4.21 psi MAX)
Normally Open
167-3466 Blade Pressure Switch
490 ± 49 kPa
(71.1 ± 7.1 psi)
290 kPa MIN
(42.1 psi MIN)
Normally Open
¹ Contact position at the contacts of the harness connector.
A AA
1
2
325-PK-14
200-BK-14
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 Gauge
Wire, Cable, or Harness
Assembly Identification
Wire Color
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
Connector
Circuit Number
Identification
Ground
Connection
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.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
4I-5394 Sender:
Hydraulic Oil Temperature
Hydraulic Oil Temperature (High Ambient)
20824 to 25451 at 0°C (32°F)
6134 to 7496 at 25°C (77°F)
3989 to 4875 at 35°C (95°F)
2224 to 2718 at 50°C (122°F)
973 to 1189 at 75°C (167°F)
475 to 522 at 100°C (212°F)
221 to 269 at 125°C (257°F)
102-8016 Resistor: Backup 47 ± 2.35
111-9916 Solenoid: Engine/Pump Control 11.7 ± 1.2
¹ At room temperature unless otherwise noted.
1
2
3
4
5
6
7
7
8
8
9
9
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Related Electrical Service Manuals
Form Number
Electrical And Electronic System:
RENR5557
Title
303-BR-18
STRAP AS.
9W-0335
LIGHTER
CIGAR
129-BU
645-PK-18
200-BK
1
2
8
447-PK-18
441-OR-18
442-GY-18
439-YL-18
330-YL-18
405-GY-18
607-PK-18
332-BU-18
200-BK-18 GND
200-BK
763-BU-18
200-BK-18
200-BK-18
A584-BU-18
COOLANT TEMP SENDER
ENG OIL PRESS. SW
SAFETY RELAY
+ BATTERY
ONE TOUCH LOW IDLE
HYD OIL TEMP SENDER
HEATER RELAY
ILLUM
FUEL TANK UNIT
P
200-BK
C538-OR-18
C537-GN-18
SPACE
103-RD-18 BACKUP
645-PK-18
607-PK-18
N933-PU-18
447-PK-18
441-OR-18
10A
118-GY-18
112-PU-10
118-GY-18
129-BU
118-GY-18
K776-GN-18
442-GY-18
101-RD-12
439-YL-18
N933-PU-18
330-YL-18
405-GY-18
C
110-GN
332-BU-18
118-GY-18
200-BK-18
447-PK-18
616-BU
442-GY-18
200-BK
101-RD-10
5A
147-PU-18
SOL
CHASSIS LAMP
AUX CKT
118-GY-18
5A
310-PU-18
175-RD-14
114-RD A770-PK-18
129-BU
115-PK 116-BR
120-YL-18
103-RD-18
184-RD-18
110-GN
607-PK-18
K776-GN-18
K776-GN-18
109-RD
200-BK-18
109-RD
200-BK
103-RD-18
307-OR-18
306-GN-18
103-RD-18
118-GY-18
200-BK-18
235-BK-18
A588-GN-18
L971-GN-18
147-PU-18
763-BU-18
118-GY-18
A771-PU-18
235-BK-18
332-BU-18
109-RD
332-BU-18
A771-PU-18
109-RD-6
101-RD-6
101-RD-14
101-RD
101-RD-12
763-BU-18
A588-GN-18
147-PU-18
L971-GN-18
A588-GN-18
442-GY-18
447-PK-18
607-PK-18
200-BK
447-PK-18
442-GY-18
A588-GN-18
L971-GN-18
147-PU-18
763-BU-18
A771-PU-18
235-BK-18
129-BU
1 TURN PER 25MM.
T LEASTNOTE D: WIRE PAIRS MUST BE TWISTED A
101-RD-10
332-BU-18
C
109-RD
200-BK-18
101-RD-14
200-BK-18
877-YL-4
101-RD-4
304-WH-8
151-GN-18
C
405-GY-18
330-YL-18
439-YL-18
442-GY-18
441-OR-18
1
NOTE E: NOT USE ON THIS MACHINE.
109-RD-8
C
C
C
C
C
B B B
118-GY-18
117-YL-14
B
KK
LL
447-PK-18
530-OR-18
332-BU-18
615-YL
330-YL-18
N933-PU-18
607-PK-18
C537-GN-18
C538-OR-18
332-BU-18
JJ
DD
RELAY PANEL
200-BK-18
607-PK-18
200-BK-18
200-BK-18
200-BK
322-GY
118-GY-18
200-BK-18
EE
MM
2
118-GY-18
B
KK 167-3618 H-9
LL 150-6937 H-7
MM 111-4829 H-7
DD 170-6840 H-7
EE 170-6841 H-7
T
4I-5394
(HIGH AMBIENT)
TEMP SENDER
HYD OIL
491-PK-18
B
10A
200-BK
F
B
105-RD-10
124-GN
7Y-5499
BLOCK
L12
L6
332-BU-18
K776-GN-18
332-BU-18
129-BU
190-PK
L5
L7
C
C
C
LL
DD
645-PK-18
EE
MM
KK JJ
C
C
129-BU-14
C
CC
C
C
200-BK
A770-PK-18
200-BK-18
5A
118-GY-18
5A
877-YL-18
101-RD-12
200-BK
118-GY-18
616-BU
101-RD-4
109-RD-6
877-YL-4
304-WH-8
E
10A
112-PU-10
129-BU-14
105-RD-10
G
H
J
101-RD
200-BK
110-GN
118-GY-18
D
332-BU-18
200-BK-18
235-BK-18
101-RD
101-RD-14
101-RD-10
306-GN-18
330-YL-18
109-RD
KEY SIG
118-GY-18
109-RD
1
2
170-9335
PRESS. SW
IMPLEMENT
B
235-BK-18
A771-PU-18
C
200-BK
501-GN-18
190-PK
116-BR
HYD LOCK
5A
151-GN-18
607-PK-18
151-GN-18
320-RD-18
115-PK
30A
10A
116-BR
124-GN
GOV
190-PK
147-PU-18
117-YL-14
A/C HEATER
E/P CONT
DOME LAMP
HORN
5A
184-RD-18
10A
5A
5A
103-RD-18
114-RD
322-GY
L10
L11
D
115-PK
645-PK-18
645-PK-18
110-GN
200-BK-18
200-BK-18
645-PK-18
101-RD-12
175-RD-14
A/C BLOWER
15A
235-BK-18
200-BK-18
L2
L1
L3
309-GY-18
200-BK-18
615-YL
116-BR
118-GY-18
118-GY-18
10A
116-BR
118-GY-18
332-BU-18
CAB FAN
119-PK-18
5A
119-PK-18
119-PK-18
QUICK COUPLER
147-PU-18
176-1986
DOME LAMP
103-RD
200-BK
492-GY-18
118-GY-18
9
10
2
E
332-BU-18
6
7
12
8
4
3
1
5
11
184-RD-18
E703-WH-18
321-BR-18
N933-PU-18
11
+B
5
1
3
4 COM+
8
12
9
7
10
13
2
6
2
6
15
118-GY-18
7
118-GY-18
12
17
8
18
10
9
4
3
12V SUPPLY
GND
1
16
CDL+
5
14
11
CDL-
COM-
PUMP PRESS,SENSOR
ONE TOUCH LOW IDLE SW
IMPLEMENT PRESS,
TRAVEL PRESS,SW
KEY SW ON
THROTTLE POSITION 1
5V SUPPLY
ANALOG RETURN
TRAVEL ALARM CANCEL SW
THROTTLE POSITION 4
THROTTLE POSITION 3
THROTTLE POSITION 2
AEC SW
BACKUP SW STATUS
G/A COMMAND
ONE TOUCH LOW IDLE IND
G/A FEEDBACK
COOLANT TEMP SENSOR
HYDRAULIC TEMP SENSOR
AUX PRESS. SW
ENGINE SPEED SENSOR
POWER SHIFT CONTROL PRV
TRAVEL ALARM
PRV RETURN
ANALOG RETURN
K909-BU-18
235-BK-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
A762-PU-18
491-PK-18
893-GN-18
332-BU-18
T967-YL-18
309-GY-18
ALT
309-GY-18
118-GY-18
118-GY-18
101-RD-10
105-RD-10
KEY SW
877-YL-18
439-YL-18
877-YL-18
439-YL-18
118-GY-18
892-BR-18
L969-WH-18
118-GY-18
15A
L968-OR-18
616-BU
M736-BU-18
L972-BU-18
A761-PU-18
BOOM LAMP
A771-PU-18
L971-GN-18
L970-GY-18
WIPER/WASHER
129-BU-14
615-YL
CAB LAMP
A770-PK-18
109-RD-6
235-BK-18
491-PK-18
491-PK-18
200-BK-18
491-PK-18
439-YL-18
GLOW IND
5A
877-YL-18
147-PU-18
124-GN
101-RD-10
110-GN
332-BU-18
120-YL-18
112-PU-10
303-BR-18
200-BK-18
C
330-YL-18
403-GN-18
332-BU-18
101-RD
330-YL-18
109-RD
109-RD
607-PK-18
184-RD-18
103-RD-18
175-RD-14
616-BU
101-RD-12
235-BK-18
164-8278
ENG/PUMP CONT
158-8266
SOL
TRAVEL SPEED
763-BU-18
147-PU-18
B
L971-GN-18
235-BK-18B
B
442-GY-18
4I-5394
TEMP SENDER
HYD OIL
T
170-9335
PRESS. SW
TRAVEL
117-YL-14
303-BR-18
30A 8T-9636
15A 9W-1441
10A 9W-1442
5A 139-5345
FUSE
MON/SW PANEL
C
5A
RADIO
10A
170-9371
FUSE BASE
180-GN
120-YL-18
B
200-BK-18
A588-GN-18
158-8266
HYD LOCK SOL
2
1
OPERATOR STATION
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
877-YL-18
132-1862
FUSE
101-RD-4
085-5353
HEATER RELAY
877-YL-4
127A
JJ 167-3620 H-9
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
FULLYCOMPONENTS ARE SHOWN INSTALLED ON A
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
EXCAVATOR.THIS SCHEMATIC IS FOR THE 311CU-HYD
CC 170-6883 D-9
BB 170-6929 D-9
AA 170-6882 D-9
CABLE AS.
WIRE AS.
IDENT PART NO. LOC
HARNESS AS.
NOTE A: USE WITH COLD WEATHER.
N 186-4552 D-5
K 183-1001 C-2
L 183-1030 H-1
P 197-4429 F-6
J 145-0560 C-2
M 186-4575 H-1
R 197-4420 F-6
H 121-1010 C-2
G 193-3492 H-2
F 167-3512 J-3
E 193-3535 F-4
D 167-3509 F-5
C 170-6832 F-8
B 170-6806 E-7
A 170-6807 E-7
1
2
125-1302
RELAY
START
330-YL-18
306-GN-18
7N-0718
SW
DISCONNECT
FF
9S-0174
BREAKER
ALT
101-RD-6
GND
IN
B+
OUT
102-8016
RESISTOR
BACKUP
140-0866
RELAY
WIPER
BK-00
163-6703
RELAY
(OFF-DELAY)
TIMER
645-PK-18 645-PK-18
140-0866
LAMP RELAY
CHASSIS/BOOM
60A
140-0866
HORN RELAY
322-GY
114-RD
320-RD-18
114-RD-18
310-PU-18
2
3
4
1
403-GN-18
094-2080
RELAY
START CONT
L
GND
S
P
YL
BK
WH/BU
WH/YL
200-BK-18
330-YL-18
RWH/GN
K776-GN-18
893-GN-18
892-BR-18
235-BK-18
D
C
B
A
ET CONNECTOR
NOTE C: USE FOR JAPAN.
200-BK
NOTE B: USE FOR OUTSIDE JAPAN.
BK
YL
CAB
530-OR-18
200-BK
A584-BU-18
A582-PU
A581-GN
A580-BR
200-BK-18
105-9911
SENSOR
FUEL
2
1
B
447-PK-18
2
1
AUX
A579-OR
530-OR-18
200-BK-18
A582-PU
A581-GN
A579-OR
200-BK
A580-BR
A581-GN
A582-PU
A580-BR
Y/G
Y/W
129-BU
200-BK-18
200-BK
129-BU
WIPER
200-BK
D D
200-BK-18
A579-OR
A580-BR
6
3
4
5
A581-GN
A582-PU
7
A584-BU-18
200-BK
C538-OR-18
C537-GN-18
763-BU-18
501-GN-18
TRAVEL SPEED SOL
A579-OR
D
200-BK-181
2
INT (3)
RISE. S
WIPER CUT
LOW
WA+
ACC
WASH
GND
STOP
REV
W. CW
W. CCW
INT (6)
-
+
3
9
4
11
8
530-OR-18
167-7080
MOTOR
WIPER
D
5
167-7083
SENSOR
A/C PHOTO
ATCH
MOTOR
501-GN-18
HH 1S-2342 G-5
12
D
167-3613
MONITOR
11
10
1
2
3
4
5
9
8
7
D
6
+B
763-BU-18
LIGHT
WASHER
645-PK-18
501-GN-18
GND
155-7042
WIPER CONT
7
10
167-3612
SWITCH PANEL
12
13
6T-7337
METER
SERVICE
6
CC
RELAY PANEL
(170-6802 HE04).
2
1
L12
CC
9W-0335
LIGHTER
CIGAR
FF 140-0860 G-9
GG 132-1805 A-9
C
A588-GN-18
101-RD-14
140-0866
RELAY
CAB LAMP
ATCH
306-GN-18
140-0866
RELAY
START
NEUTRAL
307-OR-18
ON
178-5464
HEATER UNIT
ATCH
167-7124
A/C UNIT
G
K776-GN-18
START
ACC
R2
C
B
R1
BR PREHEAT
OFF
105-RD-10
307-OR-18
310-PU-18
112-PU-10
303-BR-18
7Y-3918
KEY SW
607-PK-18
118-GY-18
118-GY-18
7
506-PU-18
492-GY-18
4
235-BK-18
200-BK-18
M736-BU-18
607-PK-18
200-BK-18
A770-PK-18
F774-WH-18
K909-BU-18
A755-PK-18
105-RD-10
L969-WH-18
307-OR-18
F773-OR-18
235-BK-18
235-BK-18
200-BK
190-PK
B
B
235-BK-18
L968-OR-18
K909-BU-18
235-BK-18
118-GY-18
A756-BU-18
A757-GY-18
A758-BR-18
A588-GN-18
303-BR-18
607-PK-18
310-PU-18
307-OR-18
F774-WH-18
F773-OR-18
A768-BU-18
403-GN-18
T967-YL-18
105-RD-10
112-PU-10
A768-BU-18
A769-GY-18
M736-BU-18
5
L972-BU-18
310-PU-18
1
L968-OR-18
L969-WH-18
A770-PK-18
235-BK-18
A769-GY-18
A770-PK-18
A769-GY-18
A768-BU-18
F773-OR-18
F774-WH-18
307-OR-18
310-PU-18
303-BR-18
607-PK-18
A758-BR-18
A757-GY-18
A756-BU-18
118-GY-18
L969-WH-18
L968-OR-18
A755-PK-18
607-PK-18
G
L972-BU-18
112-PU-10
105-RD-10
1
3
2
200-BK-18
332-BU-18
K909-BU-18
N933-PU-18
112-PU-10
M736-BU-18
151-GN-18
A588-GN-18
607-PK-18
103-RD-18
C537-GN-18
C538-OR-18
A761-PU-18
MOTOR
119-PK-18
200-BK-18
180-5316
FAN MOTOR
ATCH
R
1
2
GN
L9
F773-OR-18
2
F774-WH-18
607-PK-18
303-BR-18
200-BK-18
M736-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
309-GY-18
405-GY-18
441-OR-18
304-WH-8
521-YL-18
109-RD-6
101-RD-4
200-BK
A762-PU-18
877-YL-4
L968-OR-18
8
ESS
235-BK-18
200-BK
101-RD-4
607-PK-18
6
200-BK-18
607-PK-18
119-PK-18
607-PK-18
109-RD-6
129-BU 129-BU
200-BK-14
521-YL-18
304-WH-8
441-OR-18
175-RD-14
200-BK-14
124-GN
521-YL-18
405-GY-18
309-GY-18
403-GN-18
607-PK-18
K776-GN-18
BK
645-PK-18
129-BU
506-PU-18
200-BK
763-BU-18
607-PK-18
120-YL-18
L970-GY-18
(NOTE E)
COUPLER SW
ATCH QUICK
A769-GY-18
A768-BU-18
200-BK-18
K776-GN-18
405-GY-18
330-YL-18
439-YL-18
442-GY-18
441-OR-18
447-PK-18
332-BU-18
L968-OR-18
877-YL-4
A762-PU-18
L970-GY-18
235-BK-18
A
A
L972-BU-18
235-BK-18
235-BK-18
A
E
D
A
D
D
B
B
B
B
R P
A768-BU-18
A769-GY-18
332-BU-18
235-BK-18
780-PU-18
A
G
F
147-PU-18
332-BU-18
L12
147-PU-18
M736-BU-18
F774-WH-18
F773-OR-18
200-BK
A761-PU-18
T967-YL-18
780-PU-18
L9
780-PU-18
L11
L10
200-BK-18
200-BK-18
D
147-PU-18
200-BK-18
200-BK-18
200-BK-18
L11
235-BK-18
L L
L
G
200-BK-18
N
N
L12
200-BK
G
G G GG
200-BK
200-BK
200-BK
A
G G
A
F
A
235-BK-18
T967-YL-18
332-BU-18YL-18
B
C
B
BR-18
BK-18
+B
GROUND
SIGNAL
157-3182
PRESS. SENSOR
PUMP
332-BU-18
235-BK-18
332-BU-18
190-PK
200-BK
K909-BU-18
235-BK-18
A755-PK-18
200-BK
A756-BU-18
A757-GY-18
200-BK
A758-BR-18
A762-PU-18
491-PK-18
893-GN-18
332-BU-18
T967-YL-18
200-BK
615-YL
D
M
310-PU-18
200-BK-18
508-PU-18
509-WH-18
511-BR-18
892-BR-18
512-GN-18
200-BK
N
L969-WH-18
L968-OR-18
M736-BU-18
N933-PU-18
L972-BU-18
A761-PU-18
184-RD-18
A771-PU-18
E703-WH-18
321-BR-18
L971-GN-18
E703-WH-18
332-BU-18
129-BU
129-BU
506-PU-18
763-BU-18
N933-PU-18
405-GY-18
330-YL-18
439-YL-18
442-GY-18
441-OR-18
447-PK-18
K776-GN-18
200-BK
615-YL
645-PK-18
L970-GY-18
607-PK-18
120-YL-18
200-BK
103-RD-18
200-BK-18
M736-BU-18
M736-BU-18
200-BK-18
200-BK
200-BK
235-BK-18
200-BK-18
167-3466
BLADE PRESS. SW
ATCH
235-BK-18
200-BK-6
120-YL-18
332-BU-18
332-BU-18
120-YL-18
120-YL-18
615-YL
103-RD-18
103-RD-18
2
3
4
5
6
1
8
12
7
9
10
11
12
11
10
9
7
BK
WH
4
3
5
5I-7746
AIR HEATER
B
2
1
B
L968-OR-18
877-YL-4
A762-PU-18
125-2966
PICKUP
ENG SPEED
200-BK-18
B
BB
B
RD-00
101-RD-4
CHASSIS
GND
F/B
+B
ACCEL
309-GY-18
109-RD-6
403-GN-18
200-BK-18
521-YL-18
K776-GN-18
DECEL
6
B
B
157-3213
ACTUATOR
ENG GOV
B
KEY
(50A)
5I-8085 (NOTE B)
(35A)
5I-8071 (NOTE C)
ALTERNATOR
2
1
200-BK-18
200-BK
190-PK
B
A761-PU-18
F773-OR-18
F774-WH-18
304-WH-8
T
5I-7578
SENDER
COOLANT TEMP
441-OR-18
405-GY-18
200-BK-6
125-2988
STARTER
L
E
B
P
R
ALT
2
1
5I-8005
ENG OIL SW
AA
117-6353
CLUTCH SOL
ATCH A/C COMPR
MOTBAT
G
S
MOTOR
B
2
1
111-9916
SOL
ENG/PUMP CONT
A768-BU-18
A769-GY-18
129-BU
200-BK
210-BK
135-BU
4
6
3
121-0987
SOCKET
12V 5A
ATCH
119-1733
CONVERTER
ATCH 12V 5A
2
5
1
12V MEMORY
24V MEMORY
24V IN
GND
GND
12V OUT
320-RD-18
320-RD-18200-BK-18
A769-GY-18
A768-BU-18
K909-BU-18
L968-OR-18
235-BK-18
F773-OR-18
L969-WH-18
F774-WH-18
11
8
5
A770-PK-18
2
12
10
9
7
6
4
3
1
3
2
1
163-6710
EPR VALVE SW
BACKUP
163-6711
GOV SW
BACKUP
118-GY-18
117-6306
LIMIT SW
WINDOW
M
OPERATOR STATION
183-1035
CAB LAMP
ATCH
183-1035
CAB LAMP
ATCH
200-BK
DD
200-BK
615-YL
A584-BU-18
615-YL
A
163-6785
LIMIT SW
NEUTRAL START
151-GN-18
L972-BU-18
200-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
5
4
3
2
1
6
12
G
8
1
G
G
11
332-BU-18
10
9
2
1
8
3
4
103-RD-18
5
6
6
7
12
5
11
10
9
7
8
1
6
5
4
3
4
2
A584-BU-18
167-3611
IND UNIT
3
2
18
17
16
15
14
200-BK-18
13
+B
E
A
L. CHASSIS
128-2134
LOW IDLE SW
ONE TOUCH
S4
S3
S2
S1
COM
106-0107
POS SW
THROTTLE
D
200-BK-18
E703-WH-18
607-PK-18
200-BK-18
E703-WH-18
200-BK-18
200-BK
210-BK
135-BU
509-WH-18
A
D
13
14
15
16
17
18
2
3
4
5
6
1
8
7
9
10
11
12
11
10
9
7
508-PU-18
12
8
512-GN-18
511-BR-18
1
5
4
3
2
200-BK
200-BK
521-YL-18
615-YL
167-3492
ANTENNA
ATCH
615-YL
B
G
A584-BU-18
200-BK
200-BK
511-BR-18
512-GN-18
508-PU-18
509-WH-18
103-RD-18
200-BK-18
511-BR-18
508-PU-18
512-GN-18
509-WH-18
129-BU
Y/G
Y/W C538-OR-18
C537-GN-18
178-5525
HEATER SW PANEL
ATCH
164-8234
A/C SW PANEL
A584-BU-18
615-YL
512-GN-18
511-BR-18
509-WH-18
508-PU-18
103-RD-18
615-YL
200-BK
506-PU-18
GG
GG
D
(NOTE C)(NOTE B)
D
SPEAKER (-)
AUX-SPEAKER(-)
BACKUP
ILLUMI
ACC
SPEAKER (-)
SPEAKER (+)
GND
512-GN-18
511-BR-18
509-WH-18
508-PU-18
200-BK-18
103-RD-18
3
9
10
2
A584-BU-18
5
1
4
8
AUX-SPEAKER(+)
7
6
SPEAKER (+)
C566-PK-18
C560-OR-18
134-1346
CONVERTER
ATCH TO RADIO
506-PU-18
ANATCH RADIO CONVERTER FOR OUTSIDE JAP
512-GN-18
509-WH-18
511-BR-18
508-PU-18
A513-RD-18
8
6
7
4
2
5
1
3
592-BU-18
GND
IGN
592-BU-18
A513-RD-18
200-BK-18
12V
MEM
24V 103-RD-18
200-BK-18
C560-OR-18
C566-PK-18
SPEAKER (+)
L12
6
7
AUX-SPEAKER(+)
8
4
1
5
2
163-6709
(CASSETTE)
AM/FM RADIO
ATCH
10
9
3
D
120-YL-18
103-RD-18
200-BK-18
508-PU-18
509-WH-18
511-BR-18
R/L
167-3629
CANCEL SW
TRAVEL ALARM
ATCH
D
C
B
A
ENG
132-1805
GROUND STRAP
CAB
512-GN-18
200-BK-18
GND
163-6706
AM RADIO
ATCH
SPEAKER (+)
SPEAKER (-)
ACC
ILLUMI
2
7
1
5
8
3
10
BACKUP
AUX-SPEAKER(-)
SPEAKER (-)
6
PANATCH RADIO WITH CASSETTE DECK FOR JA
ANTENNA
9
D
7Y-5505
SPEAKER (L)
ATCH
4
R
BR
B
FFA
124-GN
7Y-5505
SPEAKER (R)
ATCH
200-BK-14
175-RD-14
6
1
3
4
5
2
200-BK-14
A
D
128-2134
HORN SW
D
163-6708
OSJ RADIO
163-6707
AM/FM RADIO
200-BK-18
321-BR-18
L2
L1 L1
A768-BU-18
A769-GY-18
A588-GN-18
2
B
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
K909-BU-18
200-BK-18
151-GN-18
B
F773-OR-18
200-BK-18
K
A
200-BK
321-BR-18
F774-WH-18
A588-GN-18
607-PK-18
200-BK
200-BK-18
521-YL-18
124-GN
175-RD-14
129-BU
A588-GN-18
332-BU-18
L968-OR-18
491-PK-18
M736-BU-18
405-GY-18
330-YL-18
439-YL-18
442-GY-18
441-OR-18
447-PK-18
103-RD-18
763-BU-18
A761-PU-18
T967-YL-18
L969-WH-18
892-BR-18
893-GN-18
118-GY-18
L970-GY-18
K909-BU-18
200-BK-18
506-PU-18
L971-GN-18
K776-GN-18
A588-GN-18
T967-YL-18
A761-PU-18
763-BU-18
CC
A
447-PK-18
441-OR-18
200-BK
200-BK
442-GY-18
405-GY-18
491-PK-18
309-GY-18
521-YL-18
A762-PU-18
A771-PU-18
645-PK-18
607-PK-18
607-PK-18
1
200-BK-18
3
105-RD-10
112-PU-10
4
5
190-PK
L970-GY-18
K776-GN-18
6
1
8
403-GN-18
7
A
CC
A
A770-PK-18
310-PU-18
175-RD-14
332-BU-18
235-BK-18
109-RD-6
304-WH-8
101-RD-4
877-YL-4
K776-GN-18
309-GY-18
A762-PU-18
L968-OR-18
405-GY-18
607-PK-18
616-BU
322-GY
120-YL-18
190-PK
441-OR-18
521-YL-18
A761-PU-18
F773-OR-18
F774-WH-18
129-BU-14
2
3
4
491-PK-18
5
6
8
7
9
10
11
12
T967-YL-18
A761-PU-18
235-BK-18
F773-OR-18
616-BU
A771-PU-18
F774-WH-18
2
3
4
5
6
1
8
7
9
10
M736-BU-18
11
12
322-GY
9
L5
200-BK
322-GY
2
B
A A
B
184-RD-18
235-BK-18
892-BR-18
893-GN-18
A769-GY-18
A768-BU-18
A771-PU-18
763-BU-18
235-BK-18
235-BK-18
893-GN-18
892-BR-18
645-PK-18
320-RD-18
607-PK-18
439-YL-18
103-RD-18
124-GN
151-GN-18
307-OR-18
118-GY-18
303-BR-18
120-YL-18
330-YL-18
112-PU-10
105-RD-10
L971-GN-18
332-BU-18
10
1
A588-GN-18
607-PK-18
A771-PU-18
A762-PU-18
521-YL-18
491-PK-18
405-GY-18
442-GY-18
441-OR-18
447-PK-18
607-PK-18
129-BU
L968-OR-18
M736-BU-18
607-PK-18
607-PK-18
332-BU-18
A
763-BU-18
L971-GN-18
1
A588-GN-18
A761-PU-18
763-BU-18
447-PK-18
442-GY-18
A771-PU-18
332-BU-18
M736-BU-18
FF
491-PK-18
T967-YL-18
K776-GN-18
L971-GN-18
T967-YL-18
A768-BU-18
A769-GY-18
235-BK-18
M736-BU-18
L968-OR-18
A588-GN-18
F774-WH-18
F773-OR-18
200-BK-18
129-BU-14
K776-GN-18
L6
L8
L9
L9
A769-GY-18
A768-BU-18
A588-GN-18
442-GY-18
447-PK-18
11
12
147-PU-18
320-RD-18
105-RD-10
112-PU-10
A770-PK-18
F774-WH-18
332-BU-18
F773-OR-18
A769-GY-18
A768-BU-18
307-OR-18
310-PU-18
303-BR-18
K776-GN-18
K776-GN-18
332-BU-18
332-BU-18
322-GY
235-BK-18
190-PK
403-GN-18
147-PU-18
616-BU
403-GN-18
309-GY-18
405-GY-18
321-BR-18
K776-GN-18
AA
441-OR-18
304-WH-8
521-YL-18
109-RD-6
101-RD-4
B
607-PK-18
235-BK-18
L968-OR-18
877-YL-4
A762-PU-18
L971-GN-18
235-BK-18
607-PK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
147-PU-18
235-BK-18
A762-PU-18
L2
L3
L4
L6
607-PK-18
L6
L5
L6
L5L5
175-RD-14
103-RD-18
184-RD-18
330-YL-18
303-BR-18
120-YL-18
332-BU-18
124-GN
A770-PK-18
439-YL-18
645-PK-18
615-YL
320-RD-18
321-BR-18
615-YL
235-BK-18
321-BR-18
200-BK
235-BK-18
235-BK-18
235-BK-18
200-BK-18
200-BK
129-BU-14
235-BK-18
615-YL
200-BK
200-BK
184-RD-18
118-GY-18
151-GN-18
119-PK-18
A588-GN-18
200-BK-18
307-OR-18
310-PU-18
P
K776-GN-18
M736-BU-18
M736-BU-18
L968-OR-18
506-PU-18
12
11
10
9
7
8
1
6
5
4
3
2
12
11
10
9
7
8
6
5
4
3
2
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK
A
A
321-BR-18
200-BK-18
506-PU-18
3T-1815
TRAVEL ALARM
ATCH
B
MOTOR
178-5601
WASHER
CCBB
200-BK-18
9X-3404 (NOTE A)
3T-5760
BATTERY
POS
NEG
NEG
POS
RD-00 BK-00
PLATFORMCHASSIS
1S-2342
GROUND STRAP
OPERATOR STATION
200-BK
616-BU
PLATFORM
304-WH-8
RELAY PANEL
877-YL-4
109-RD-6
L968-OR-18
L969-WH-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
200-BK-14
200-BK-14
200-BK
CHASSIS
200-BK-18
200-BK
607-PK-18
322-GY
616-BU
200-BK
322-GY
200-BK
200-BK
200-BK
K
K
B
B
143-1617
BOOM LAMP
ATCH
7Y-3919
HORN
H
J
J
H
616-BU
616-BU
143-1617
LAMP
CHASSIS
143-1617
BOOM LAMP
ATCH
2
1
7Y-3920
HORN
140-0860
GROUND STRAP
HHHH
BB
200-BK
200-BK
200-BK
322-GY
322-GY
101-RD-4
N 186-4552 D-5
K 183-1001 C-2
L 183-1030 H-1
P 197-4429 F-6
J 145-0560 C-2
M 186-4575 H-1
R 197-4420 F-6
H 121-1010 C-2
G 193-3492 H-2
F 167-3512 J-3
E 193-3535 F-4
D 167-3509 F-5
C 170-6832 F-8
B 170-6806 E-7
A 170-6807 E-7
N 186-4552 D-5
K 183-1001 C-2
L 183-1030 H-1
P 197-4429 F-6
J 145-0560 C-2
M 186-4575 H-1
R 197-4420 F-6
H 121-1010 C-2
G 193-3492 H-2
F 167-3512 J-3
E 193-3535 F-4
D 167-3509 F-5
C 170-6832 F-8
B 170-6806 E-7
A 170-6807 E-7
CONN 10
CONN 11
CONN 12
CONN 13
CONN 14
CONN 15
CONN 18
CONN 19
CONN 16
CONN 17
CONN 20
CONN 21
CONN 22
CONN 23
1
2
3456789
J
H
G
F
E
D
C
B
A
9 8 7 6 5 4 3 2
1
J
H
G
F
E
D
C
B
A
STARTING CIRCUIT.
GAUGE CIRCUIT.
CAT DATA LINK CIRCUIT.
PANEL LAMP CIRCUIT.
TURN SIGNAL AND WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
MONITOR CIRCUIT.
START AID CIRCUIT.
ENGINE/PUMP CONTROL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS ON.
SYMBOL DESCRIPTION
BLADE, SPADE, RING OR SCREW
TERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION TO
MACHINE STRUCTURE
INTERNAL ELECTRICAL CONNECTION
TO SURFACE OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE, COMPONENT
CIRCUIT CONNECTED
SPLICE
CIRCUIT GROUPING DESIGNATION
H#
NOTE D
NOTE D
NOTE D
NOTE D
NOTE D
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6 CONN 7 CONN 8
CONN 9
CONN 9
CONN 9
