320C EXCAVATOR ELECTRICAL SYSTEM

RENR3821-01
November 2000
320C Excavator
Electrical System
ANB1-UP
BCB1-UP
BDB1-UP
AMC1-UP
BBC1-UP
BDC1-UP
CCD1-UP
ALF1-UP
BEF1-UP
AKH1-UP
BER1-UP
BPR1-UP
BRX1-UP
©
2000 Caterpillar
All Rights Reserved
Printed in U.S.A.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
A/C Switch Panel D-3
A
Sensor - AIH Coolant Temp. C-12
16
Actuator Eng. Governor A-12
1
Sensor - Fuel Level A-5
17
Air Heater A-10
2
Sensor - Pump Discharge Press 1 B-7
F
Alarm - Fault D-1
A
Sensor - Pump Discharge Press 2 B-7
F
Alarm - Travel A-5
3
Sensor - Speed A-15
18
Alternator C-12
4
Sockets - 12V 7A D-6
A
Antenna D-5
5
Solenoid - A/C Clutch B-12
19
Battery J-12
6
Solenoid - Fine Swing D-11
A
Block Terminal G-8
E
Solenoid - Flow Limit B-9
F
Breaker Alt. G-10
E
Solenoid- Hammer H-12
E
Controller-Valve D-9
22
Solenoid - Hyd. Lock D-12
G
Controller-Eng/Pump E-9
E
Solenoid - Power Shift Cont. B-7
F
Converter D-5
40
Solenoid - Stem 1 Cont (A) A-7 34
Converter - 12V 7A J-6
D
Solenoid - Stem 1 Cont (B) A-7
35
Converter - 12V 7A J-6
41
Solenoid - Stem 2 Cont (A) A-7
36
Diode G-7
E
Solenoid - Stem 2 Cont (B) A-7
37
Diode J-8
G
Solenoid - Stem 3 Cont (A) A-8
38
Diode J-11
G
Solenoid - Stem 3 Cont (B) A-8
39
Eng. Speed Dial G-1
B
Solenoid - Swing Brake E-12
G
Fuse Block J-10
E
Solenoid - Travel Speed E-12
G
Horn C-2, B-2
7
Solenoid - Travel Straight D-12
G
Joystick G-1
B
Speaker E-6
A
Joystick J-2
C
Switch - Air Cleaner J-11
24
Lamp - Boom C-1
8
Switch - Aux Hyd. Press. H-1
D
Lamp - Cab F-1
9
Switch - Backup G-2
B
Lamp - Chassis B-2
10
Switch - Backup Gov G-3
B
Lamp - Dome E-6
A
Switch - Coolant Level J-12
25
Lighter - Cigar D-1
A
Switch - Disconnect G-11
E
Meter - Service D-1
A
Switch - Eng. Oil Level A-12
26
Monitor F-1
A
Switch - Eng. Oil Press. A-12
27
Motor - Lower Washer J-12
11
Switch - Fine Swing Cont. D-4
50
Motor - Lower Wiper J-1
D
Switch - Hammer Foot J-3
D
Motor - Starter B-12
12
Switch - Hammer Press H-12
D
Motor - Washer J-12
13
Switch - Horn J-2
C
Motor - Wiper E-1
A
Switch - Hyd. Oil Filter A-6
F
Relay - Boom Lamp J-11
E
Switch - Hyd. Oil Level A-6
F
Relay - Cab Lamp H-11
E
Switch - Joystick Press. J-3 D
Relay - Chassis Lamp H-11
E
Switch - Key G-1 B
Relay - Heater J-8
E
Switch - Lower Washer D-3 A
Relay - Horn H-11
E
Switch - Lower Wiper D-3 A
Relay - Hyd. Lock Sol. H-11
E
Switch - Medium Line Press. J-1
D
Relay - Main J-7
E
Switch - Neutral Start Limit J-2 D
Relay - Neutral Start G-11
E
Switch - One Touch Low Idle H-1 B
Relay - Refueling Power A-2
43
Switch - Panel D-2 A
Relay - Refueling Start A-3
44
Switch - Seat Heater D-3 A
Relay - Refueling Stop A-2
45
Switch - Straight Travel Press. H-1
D
Relay - Start Cont. J-10
E
Switch - Travel Left Press. J-1 D
Relay - Starter G-7
E
Switch - Travel Right Press. J-1 D
Relay - Timer J-10
E
Switch - Under Window Limit E-1 A
Resistor - Backup J-8
E
Switch - Window Limit F-1 A
Seat With Seat Heater H-1
14
Unit Heater F-5 28
Sender - Eng. Coolant Temp. C-12
15
Unit Heater Control J-7 E
Sender - Hyd. Oil Temp. A-6
F
Unit IND G-1 B
Sensor - A/C Photo E-1
A
Wiper Control D-2 A
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 D-12 60
CONN 2 ET CONN J-11 E
CONN 3 G-9 E
CONN 4 G-9 E
CONN 5 G-8 E
CONN 6 G-8 E
CONN 7 G-8 E
CONN 8 E-7 20
CONN 9 G-7 E
CONN 10 H-7 E
CONN 11 J-6 D
CONN 12 D-6 A
CONN 13 C-6 61
CONN 14 A-5 59
CONN 15 F-5 A
CONN 16 F-5 A
CONN 17 H-5 D
CONN 18 F-4 A
CONN 19 A-3 57
CONN 20 A-3 58
CONN 21 B-3 54
CONN 22 B-3 55
CONN 23 H-3 D
CONN 24 H-3 D
CONN 25 J-2 51
CONN 26 H-2 D
CONN 27 H-2 21
CONN 28 F-2 A
CONN 29 C-2 7
CONN 30 C-2 8
CONN 31 F-1 A
CONN 32 F-1 A
CONN 33 G-1 B
CONN 34 J-2 D
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.
CID
Component
1522
Variable Relief (1) Solenoid Valve
1523
Variable Relief (2) Solenoid Valve
1524
Flow Control Solenoid Valve
2004
ATT Stem1 Modulation
2005
ATT Stem2 Modulation
2006
ATT Stem3 Modulation
2012
1Way/2Way Change Solenoid Valve
2016
ATT Stem1 Extended Solenoid Valve
2017
ATT Stem1 Extended Solenoid Valve
2018
ATT Stem2 Extended Solenoid Valve
2019
ATT Stem2 Extended Solenoid Valve
2020
ATT Stem3 Extended Solenoid Valve
2021
ATT Stem3 Extended Solenoid Valve
Component Identifiers (CID)¹ and
Module Identifier (MID06A)² for (Atch) Valve Control
¹ The CID is a diagnostic code that indicates which component is faulty.
² The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Code Description of Problems
1301 Engine oil pressure is too low.
1302 Engine coolant temperature is too high.
1303 Hydraulic oil temperature is too high.
1304 Air filter is clogged.
1305 Battery voltage is not normal.
2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.
2202 Governor actuator feedback sensor circuit is shorted to body ground.
2301 Governor actuator feedback signal is not stable.
2302 Governor actuator feedback signal deviates.
2303 Governor actuator does not move.
2304 Calibration data error.
3201 Monitor RAM is not normal.
4101 Electric power supply to the controller is too much (43 volts).
4102 Over-current in proportional reducing valve.
4103 Proportional reducing valve circuit is open.
4104 Monitor power supply (digital output) over current.
4105 Over-current in digital output (trenching solenoid).
4106 Over-current in digital output (fine control solenoid).
4107 Over-current in digital output (travel speed change solenoid).
4108 Over-current in digital output (travel alarm).
4109 Spare solenoid 1 (digital output) over current.
410A Over-current in digital output (swing brake solenoid).
410b Spare solenoid 2 (digital output) over current.
4201 Engine speed is not normal.
4202 Engine coolant temperature sensor is shorted to body ground.
4203 Hydraulic oil temperature sensor is shorted to body ground.
4204 PWM sensor of pump delivery pressure is shorted to body ground.
4205 Spare PWM sensor 1 is shorted to body ground.
4206 Spare PWM sensor 2 is shorted to body ground.
4207 PWM sensor of pump delivery pressure is open in circuit.
420A Fuel sensor is shorted to body ground
420B Fuel sensor is open or shorted to battery voltage.
420C Electric power supply is to low (below 23 volts).
420D Electric power supply is to high (above 32 volts).
420E Engine speed dial is not in one of the 10 specified positions.
4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).
4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).
4303 Engine stalls.
A201 Monitor communication is not normal.
A202 Monitor takes too much time to respond to controller's signal.
A203 Communication is abnormal in controller.
A20d ADEM communication disconnect.
Real Time Error Codes
Failure Mode Identifiers (FMI)¹
FMI No.
Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
14 Parameter failures.
15 Parameter failures.
16 Parameter not available.
17 Module not responding.
18 Sensor supply fault.
19 Condition not met.
20 Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
20824-25451 @ 0 °C (32 °F)
6134-7496 @ 25 °C (77 °F)
3989-4875 @ 35 °C (95 °F)
4I-5394 Sender: Hydraulic Oil Temperature 2224-2718 @ 50 °C (122 °F)
973-1189 @ 75 °C (167 °F)
475-522 @ 100 °C (212 °F)
221-269 @ 125 °C (257 °F)
102-8016 Resistor: Backup 47.0 ± 2.35
107-7056 Solenoid: Fine Swing 34 ± .5 @ 20 °C (68 °F)
¹ At room temperature unless otherwise noted.
Related Electrical Service Manuals
Form Number
Engine/Pump Control:
RENR3814
Valve Control Tool:
RENR3823
Title
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
Travel Left Pressure
167-3466 Travel Right Pressure 490.00 ± 49.00 kPa 290.00 kPa MIN Normally Open
Joystick Pressure (71.07 ± 7.11 psi) (42.06 psi MIN)
Aux. Hydraulic Pressure
¹ With increasing pressure the closed condition can be maintained up to 3740 kpa (542.4 psi), with decreasing pressure the closed condition can be maintained
down to 166 kpa (24.1 psi).
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
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
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.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits Accessory Circuits (continued)
101 RD Bat (+) A513 RD Radio to Convertor
103 RD Dome Lamp / Memory A537 PK Seat Heater
105 RD Key Start Sw. A579 OR Wiper Motor +
109 RD Alt Output (+) Term. A580 BR Wiper Motor
110 RD Timer Relay A581 GN Wiper Motor Raise
112 PU Main Power Rly Output A582 PU Wiper Motor Stop
113 OR Opr Mon Panel B (+) Switched A584 BU Window Limit Sw. To Wiper Cont
114 RD Warning Horn (Forward) A586 OR Wiper Sw. To Wiper Cont
115 RD Cab Lamp A587 YL Power Window Cont To Safety Sol Relay
118 GY Wiper / Washer A588 GN Safety Sol Relay To Sol
120 YL 12V 7A Converter 1 C537 GN A/C Photo Sensor (+ Sig)
123 WH Seat Heater C538 OR A/C Photo Sensor (- Sig)
124 GN A/C C560 OR Left Rear Speaker
129 BU Cigar Lighter C566 PK Left Rear Speaker Common
130 RD Atch Valve Control C569 YL Atch 12V 7A Socket
135 BU 12V 7A Converter to Socket E554 PK A/C Clutch Solenoid
143 BR Atch Boom Float Disable Relay Lighting Circuits
147 PU Att. Fine Swing Control Sw. 607 PK Flood Lamps - Front
149 RD Boom Lamp 615 YL Cab Flood Lamp/Rops
150 RD Bat (+) 616 BU Boom Flood Lamp
151 GN Hyd. Lock Cancel Sw. 645 RD Boom Lamp Relay
152 BU Lower Wiper / Washer 646 RD Chassis Lamp Relay
154 RD Neutral Start Limit Sw. to Neutral Start Relay 684 RD Cab Lamp Relay
160 PU Chassis Lamp A623 BU Chassis Lamp Relay
168 RD Refueling Pump Control Circuits
169
PK
Backup/Monitor Control
763
Torque Converter Sw.
175 RD A/C Blower 780 PU Atch Quick Coupler
179 BU 12V 7A Convertor 788 YL Engine Speed (+)
180 GN Aux Ckt A718 PU Start Aid Coolant Sensor Signal
184 RD Eng/Pump Control A755 PK Throttle Sw. #1
189 RD Start Aid Ckt. A756 BU Throttle Sw. #2
191 WH Power Window A757 GY Throttle Sw.#3
Ground Circuits A758 BR Throttle Sw. #4
200 BK Main Chassis A761 PU Electronic Pump Cont Throttle Ground
201 BK Operator Monitor Return A762 PU Elec Pump Cont Eng Speed Ground
210 BK 12V 7A Convertor Ground A768 BU Pump Control Valve #1 (+)
229 BK 12V 7A Convertor Ground A769 GY Pump Control Valve #2 (-)
235 BK Electronic Pump Ctrl Gnd A770 PK Elec Pump Cont Bypass Sw.
Basic Machine Circuits F773 OR Governor Accel
304 WH Starter Relay No. 1 Output F774 WH Governor Decel
306 GN Starter Relay Coil To Neut Start Relay K776 GN Start Cont Relay
307 OR Key Start Sw. To Neutral Start Relay M734 BR Travel Mode Sw.
308 YL Main Power Relay Coil M736 BU Governor Comand/Backup Sw.
309 GY Alternator Regulator M737 WH Flow Limit Pressure PRV
310 PU Start Aid Sw. To Start Aid Sol M738 OR Primary NFC Pressure PRV
320 RD Horn Relay Coil To Sw. M739 YL PRV Return (2)
321 BR Backup Alarm Lamp Travel Alarm M740 PK Travel Straight Solenoid
322 GY Warning Horn (Forward) M741 GY Travel Alarm Cancel Switch
323 WH Atch Refueling Pump/Relay M742 PU AEC Mode Switch
325 PK Atch Refueling Stop Sw M743 GN Atch Boom Float Disable Switch
326 RD Key Sw. "C" Term 877 YL Air Heater to Air Heater Relay
329 YL Atch Refueling Stop Relay/Power Relay 892 BR Cat Data Link (-)
330 YL Neutral Start Relay Coil 893 GN Cat Data Link (+)
365 YL Refueling Relays K843 GN Stem3 Extend Sw.
Monitoring Circuits K844 GY Stem4 Extend Sw.
403 GN Alternator (R) Term. K847 PU Stem3 Retract Sw.
405 GY Opr Mon Oil Press. (Low Setting) K848 WH Stem4 Retract Sw.
410 WH Action Alarm K849 YL Atch Stem1 Swing Cancel
412 BU Operator Monitor Cool Flow K850 BR Atch Stem2 Swing Cancel
430 BU Operator Monitor Air Filter K851 BU Atch Stem3 Swing Cancel
487 OR Hydraulic Filter Sw. K852 GN Atch Stem4 Swing Cancel
491 PK Hydraulic Oil Temp Sensor K853 GY Pump1 F1 Flow Cont PRV
492 GY Coolant Temp Sensor Signal K854 OR Pump2 F1 Flow Cont PRV
495 GN Fuel Level K855 PK Separate Valve PRV
496 WH Hyd Oil Level Switch K856 PU ATT Stem1 Cont PRV (A)
C468 BU Engine Oil Level K857 WH ATT Stem2 Cont PRV (A)
E469 YL Tool Press Sensor K858 YL ATT Stem3 Cont PRV (A)
E470 BR Negative Cont Press Sensor 1 K859 BR ATT Stem4 Cont PRV (A)
E471 BU Negative Cont Press Sensor 2 K860 BU ATT Stem1 Cont PRV (B)
E472 GN 12V Supply K861 GN ATT Stem2 Cont PRV (B)
E473 GY Att Stem1 Modulation K862 GY ATT Stem3 Cont PRV (B)
E474 OR Left Joystick Thumbwheel K863 OR ATT Stem4 Cont PRV (B)
E475 PK Att Stem3 Modulation K864 PK ATT1 Relief PRV
E476 PU Att Stem4 Modulation K865 PU ATT2 Relief PRV
H465 GN Travel Alarm Cancel Indicator K866 WH 1Way/2Way Cont Sol
H466 BU AEC Mode Indicator K867 YL PRV Return (1)
H467 WH Travel Mode Indicator K868 BR Sol Gnd2
H473 BR Travel Straight Pressure Switch K869 BU Sol Gnd3
H474 GN Travel Right Pressure Switch K870 GN Sol Gnd4
H475 BU Travel Left Pressure Switch K871 WH Pump Exchange Solenoid
H476 WH Joystick Pressure Switch K872 OR Single/Double Action Exchange Solenoid
Accessory Circuits K874 BR Variable Relief 1 Check Solenoid
501 GN Wiper - Front (Low) K875 BU Variable Relief 2 Check Solenoid
506 PU Washer - Front K879 GN Double Action Solenoid
508 PU Radio Speaker - Left 954 GN Hammer Sw A
509 WH Radio Speaker - Left (Common) G976 BU Water Separator Level Sw.
511 BR Radio Speaker - Right K904 GN Pump Discharge - Signal
512 GN Radio Speaker - Right (Common) K906 GN Swing Brake Sol - Signal
530 OR Washer Right K907 BU Swing Brake Sol - +B
535 BU Atch Window Limit Sw. L968 OR Electronic Pump Control Ps Valve (-)
575 YL Wiper - Aux L969 WH Electronic Pump Control Ps Valve (+)
576 PK Wiper - Aux L972 BU Low Idle Sw.
578 BU Washer - Aux L973 GN Fine Swing Cont Relay To Sol Valve
586 BR Aux Hydraulic - Close L975 PK Start Aid Cont Lamp 1 Output
590 GY Wiper Sw To Intermittent Module L976 GN Refueling Start Switch
592 BU DC/DC Converter Power Output T967 YL Pump Discharge(2) Press Sensor
200-BK
616-BU
330-YL
330-YL
C
330-YL
306-GN
F
K849-YL-18
K849-YL-18 K849-YL-18
Z
954-GN
L36
200-BK-18
235-BK-18
L36
L35
2
1
Z
147-PU
147-PU
147-PU
L35
954-GN
K852-GN-18
K852-GN-18
K849-YL-18
K849-YL-18
(NOTE A)
MM NN
NN
MM
LL
KK
DDEE
EE
DD
RELAY PANEL
A
C
C
C
BBBB
CC
BB
B
235-BK
B
B
B
AAA
A
L34
L33
L32
L31
L33
L32
L31
L30
L28
L28
L27
L18
L19
M736-BU-18
109-RD-6
CONN 3
CONN 5
CONN 6 CONN 7
CONN 20
CONN 9
CONN 4
101-RD-6
112-PU-6
L19
M736-BU-18
M736-BU-18
535-BU-18
535-BU-18
535-BU
M736-BU-18
K851-BU-18
L18
L19
L18
K851-BU-18
K851-BU-18
235-BK-18
235-BK-18
M740-PK-18 1
2
954-GN
B
A584-BU-18
H476-WH-18
607-PK-18
607-PK-18
147-PU
M741-GY-18
M742-PU-18
M742-PU-18
H465-GN-18
M739-YL-18
200-BK-14
200-BK-18
200-BK-18
200-BK-14
410-WH-18
113-OR-18
576-PK-18
575-YL-18
152-BU
A537-PK-18
200-BK-18
147-PU
310-PU
307-OR
578-BU
578-BU
646-RD-18
646-RD-18
615-YL
H467-WH-18
615-YL
129-BU
M737-WH-18
M738-OR-18
535-BU
200-BK
169-PK-18
147-PU
169-PK-18
M738-OR-18
509-WH-18
M734-BR-18
M734-BR-18
M737-WH-18
118-GY
506-PU-18
892-BR-18
893-GN-18
123-WH-18
307-OR
310-PU
147-PU
200-BK-18
200-BK-18
A537-PK-18
200-BK-14
152-BU
575-YL-18
508-PU-18
576-PK-18
645-RD-18
410-WH-18
113-OR-18
123-WH-18
645-RD-18
200-BK-18
893-GN-18
892-BR-18
307-OR
200-BK-14
113-OR-18
535-BU
535-BU
113-OR-18
A584-BU-18
113-OR-18
506-PU-18
512-GN-18
118-GY
200-BK-18
511-BR-18
200-BK
200-BK-14
403-GN-18
129-BU
310-PU
403-GN-18
403-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
235-BK-18
C
147-PU
147-PU
147-PU
A
L14
5
6
2
235-BK-18
235-BK-18
200-BK-18
200-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
147-PU
235-BK-18
607-PK-18
607-PK-18
235-BK-18
201-BK-18
147-PU
200-BK
201-BK-18
200-BK
201-BK-18
200-BK-18
C569-YL-14
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
103-RD
607-PK-18
607-PK
607-PK
103-RD
309-GY-18
235-BK-18
229-BK-14
H473-BR-18
H473-BR-18
147-PU
235-BK-18
235-BK-18
235-BK-18
235-BK-18
ATCH
STRAIGHT TRAVEL
PRESS. SW
167-3466
A
1
2
229-BK-14
C569-YL-14
135-BU-14
210-BK-14
210-BK-14
135-BU-14
210-BK-14
135-BU-14
229-BK-14
200-BK-18
200-BK-18
607-PK-18
607-PK-18
200-BK-18
C569-YL-14
H473-BR-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
A770-PK-18
169-PK-18
169-PK-18
235-BK-18
200-BK-18
235-BK-18
235-BK-18
607-PK-18
C
200-BK-18
200-BK-18
C
E554-PK-18
L11
147-PU
200-BK-14
C
200-BK
147-PU
147-PU
147-PU
147-PU
325-PK-18
200-BK-10
780-PU-18
168-RD-10
321-BR-18
200-BK-18
12
200-BK
200-BK
11
200-BK
10
9
8
7
6
54
3
200-BK-18
200-BK-18
615-YL
877-YL-4
304-WH-8
109-RD-6
101-RD-4
189-RD
607-PK
616-BU
403-GN-18
A718-PU-18
A588-GN
322-GY
511-BR-18
512-GN-18
508-PU-18
509-WH-18
235-BK-18
235-BK-18
235-BK-18
200-BK-18
A768-BU-18
A769-GY-18
200-BK-14
F773-OR-18
F774-WH-18
K906-GN-18
A584-BU-18
615-YL
T967-YL-18
K904-GN-18
487-OR-18
C468-BU-18
496-WH-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
615-YL
A762-PU-18
788-YL-18
A761-PU-18
2
M739-YL-18
763-BU-18
763-BU-18
M738-OR-18
M737-WH-18
M740-PK-18
A761-PU-18
(NOTE B)
1
788-YL-18
A762-PU-18
405-GY-18
492-GY-18
491-PK-18
495-GN-18
496-WH-18
C468-BU-18
487-OR-18
K904-GN-18
T967-YL-18
877-YL-4
304-WH-8
109-RD-6
101-RD-4
189-RD
607-PK
616-BU
403-GN-18
A718-PU-18
A588-GN
322-GY
235-BK-18
506-PU-18
578-BU
K906-GN-18
F774-WH-18
F773-OR-18
A769-GY-18
A768-BU-18
308-YL
892-BR-18
893-GN-18
893-GN-18
893-GN-18
892-BR-18
892-BR-18
410-WH-18
A755-PK-18
K907-BU-18
M734-BR-18
L969-WH-18
L968-OR-18
308-YL
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
430-BU-18
412-BU-18
L11
L29
L21
322-GY
A588-GN
L975-PK-18
A718-PU-18
616-BU
607-PK
893-GN-18
892-BR-18
189-RD
101-RD-4
109-RD-6
304-WH-8
877-YL-4
M736-BU-18
L28
L18
L26
L29
L21
L23
K904-GN-18
L24
308-YL
L21 L21
L29
L27
L26
L25
L25
L24
L23
L12
L13
L12
X
E472-GN-18
235-BK-18
235-BK-18
235-BK-18
E475-PK-18
E476-PU-18
E473-GY-18
(NOTE B)
E474-OR-18
S
W
K848-WH-18
K844-GY-18
151-GN
1
2
K859-BR-18
3
K869-BU-18
4
5
6
S
K847-PU-18
L17
130-RD-14
308-YL
L15
L2 L2
K843-GN-18
2
1
(NOTE B)(NOTE B)
1
2
S
K869-BU-18
K863-OR-18
K858-YL-18
K869-BU-18
S
E472-GN-18
235-BK-18
E
235-BK-18
E
509-WH-18
508-PU-18
512-GN-18
511-BR-18
M743-GN-18
200-BK
200-BK
200-BK
143-BR-18
615-YL
A584-BU-18
200-BK
615-YL
M736-BU-18
200-BK-18
M736-BU-18
308-YL
308-YL
308-YL
A588-GN
H474-GN-18
H475-BU-18
H476-WH-18
H466-BU-18
M742-PU-18
M741-GY-18
H467-WH-18
200-BK
200-BK
M739-YL-18
K906-GN-18
506-PU-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
308-YL
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
ATCH
ANTENNA
167-3492
F
T967-YL-18
M734-BR-18
235-BK-18
892-BR-18
F F
CAB
M736-BU-18
763-BU-18
235-BK-18
508-PU-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
410-WH-18
K906-GN-18
578-BU
509-WH-18
892-BR-18
511-BR-18
512-GN-18
F
(NOTE B)
893-GN-18
147-PU
147-PU
F
F F
E554-PK-18
893-GN-18
309-GY-18
L975-PK-18
E472-GN-18
412-BU-18
L2
430-BU-18
E554-PK-18
235-BK-18
CHASSIS
6
5
4
3
2
1
E
1
2
512-GN-18
143-BR-18
M743-GN-18
(NOTE B)
E
780-PU-18
150-OR-18
M743-GN-18
143-BR-18
L6
L7
L8
L6
L20
L11
L20
E470-BR-18
E471-BU-18
L10
L22
L22
K853-GY-18
K854-OR-18
L12
L14
L12
CONN 23
CONN 24
CONN 26
CONN 27
L22
L13
L22
L35
235-BK-18
308-YL
235-BK-18
235-BK-18
K867-YL-18
K867-YL-18
K867-YL-18
2
1
1
2
2
1
511-BR-18
509-WH-18
TRAVEL STRAIGHT
SOL
121-1491
HYD LOCK
SOL
121-1491
508-PU-18
200-BK-18
113-OR-18
403-GN-18
3
L10
9
10
2
5
1
1
4
8
308-YL
7
6
308-YL
235-BK-18
235-BK-18
235-BK-18
E475-PK-18
C566-PK-18
K867-YL-18
C560-OR-18
ATCH
12V 7A
SOCKET
121-0987
200-BK
F
F
A
L29
L21
L36
L29
L21
615-YL
646-RD-18
645-RD-18
175-RD-14
129-BU
179-BU
120-YL
147-PU
118-GY
152-BU
105-RD
308-YL
151-GN
308-YL
A
13
14
15
16
E476-PU-18
235-BK-18
17
18
2
3
4
5
6
1
8
7
9
10
L31
11
12
12
ATCH STEM 1
CONT SOL (B)
111-9916
(NOTE K)
11
307-OR
154-RD
10
9
7
12
8
1
6
5
1
2
4
3
2
11
10
9
S
2
1
ATCH STEM 3
CONT SOL (A)
111-9916
(NOTE K)
ATCH STEM 3
CONT SOL (B)
111-9916
(NOTE K)
1
2
308-YL
235-BK-18
K869-BU-18
K869-BU-18
K869-BU-18
K869-BU-18
K868-BR-18
K868-BR-18
K868-BR-18
K868-BR-18
K869-BU-18
K860-BU-18
K868-BR-18
K856-PU-18
K861-GN-18
K857-WH-18
K862-GY-18
K869-BU-18
S
7
8
1
6
5
4
3
2
21
20
19
18
17
16
15
14
13
L32
L33
S S
(NOTE B)
1
2
2
1
K853-GY-18
K867-YL-18
L23
L24
L25
L23
K854-OR-18
K867-YL-18
L32
L23
L16
L2
L37
L16
103-RD
L37
L17
L2
L23
L15
200-BK
200-BK
103-RD
103-RD
103-RD
103-RD
189-RD
S S
607-PK
103-RD
B
C
A
A
C
B
607-PK
103-RD
103-RD
607-PK
H466-BU-18
K872-OR
K879-GN
K871-WH
K871-WH
K879-GN
K872-OR
K871-WH
K872-OR
(NOTE B) (NOTE B) (NOTE B)
235-BK-18
235-BK-18
E470-BR-18
E471-BU-18
S
(NOTE B)
B
C
A
235-BK-18
E469-YL-18
308-YL
12
11
10
9
7
8
1
6
5
4
3
2
6
2
1
3
4
5
12
11
10
9
8
7
K871-WH-18
K872-OR-18
130-RD-14
322-GY
A588-GN
H476-WH-18
308-YL
308-YL
L29
S
Z
K869-BU-18
K862-GY-18
K857-WH-18
K868-BR-18
S
2
1
ATCH STEM 2
CONT SOL (A)
111-9916
(NOTE K)
ATCH STEM 2
CONT SOL (B)
111-9916
(NOTE K)
1
2
L9
S
K868-BR-18
K861-GN-18
K856-PU-18
K868-BR-18
S
2
1
ATCH STEM 1
CONT SOL (A)
111-9916
(NOTE K)
K868-BR-18
K860-BU-18
235-BK-18
K858-YL-18
K863-OR-18
S
1
2
3
4
5
6
S ATCH
JOYSTICK
177-7712
K848-WH-18
K844-GY-18
235-BK-18
E474-OR-18
K848-WH-18
K844-GY-18
SWITCH 2
SWITCH 1
COMMON
PWM+
GND
+12V
308-YL
E469-YL-18
K867-YL-18
K867-YL-18
K855-PK-18
200-BK-14
200-BK-14
200-BK-18
200-BK-14
200-BK-14
L8
235-BK-18
L975-PK-18
A718-PU-18
309-GY-18
403-GN-18
616-BU
607-PK
893-GN-18
200-BK-14
892-BR-18
189-RD
L8
S
K879-GN
L7
235-BK-18
235-BK-18
235-BK-18
235-BK-18
K847-PU-18
235-BK-18
K847-PU-18
K843-GN-18
K843-GN-18
E473-GY-18
E473-GY-18
E472-GN-18
200-BK-18
200-BK-18
235-BK-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
307-OR
326-RD
308-YL
105-RD
607-PK
K906-GN-18
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
A770-PK-18
K907-BU-18
F773-OR-18
F774-WH-18
200-BK-14
A
C
B
12
11
10
9
7
8
1
6
5
4
3
586-BR
586-BR
586-BR
L973-GN
L973-GN
L13
200-BK-18
308-YL
326-RD
307-OR
105-RD
113-OR-18
F
F
ATCH SPEAKER (L)
7Y-5505
ATCH SPEAKER (R)
7Y-5505
DOME LAMP
176-1986
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
235-BK-18
F774-WH-18
F773-OR-18
646-RD-18
646-RD-18
646-RD-18
A769-GY-18
A768-BU-18
403-GN-18
K906-GN-18
105-RD
K907-BU-18
A770-PK-18
L969-WH-18
L968-OR-18
A755-PK-18
M736-BU-18
M736-BU-18
M736-BU-18
307-OR
169-PK-18
169-PK-18
169-PK-18
326-RD
A537-PK-18
A537-PK-18
A537-PK-18
2
1
200-BK-18
235-BK-18
200-BK-18
200-BK-18
235-BK-18
L968-OR-18
L969-WH-18
A770-PK-18
K907-BU-18
K906-GN-18
A768-BU-18
169-PK-18 F773-OR-18
F774-WH-18
607-PK
169-PK-18
A769-GY-18
235-BK-18
A758-BR-18
A757-GY-18
L6
A756-BU-18
A755-PK-18
5
5
4
3
2
6
1
308-YL
235-BK-18
200-BK-18
235-BK-18
L972-BU-18
235-BK-18
6
200-BK-18
780-PU-18
200-BK-18
780-PU-18
150-OR-18
ATCH
MEDIUM LINE
PRESS. SW
167-3466
1
200-BK-18
235-BK-18
235-BK-18
150-OR-18
L973-GN
607-PK
103-RD
(NOTE B)
E472-GN-18
K847-PU-18
K843-GN-18
E473-GY-18
607-PK
12
E
E
E
E
E
E
E
E
E
11
E
10
+12V
GND
PWM+
235-BK-18
COMMON
200-BK-18
SWITCH 1
SWITCH 2
E474-OR-18
235-BK-18
200-BK-18
E472-GN-18
E472-GN-18
320-RD-18
ATCH JOYSTICK
177-7711
320-RD-18
D
D
D
D
2
HORN SW
128-2134
1
2
6
5
4
3
2
3
4
4
3
147-PU
147-PU
235-BK-18
607-PK
103-RD
A768-BU-18
A769-GY-18
235-BK-18
308-YL
322-GY
B
200-BK
H465-GN-18
607-PK
T967-YL-18
200-BK-18
2
1
M737-WH-18
K904-GN-18
235-BK-18
235-BK-18
2
A
168-RD-10
200-BK
200-BK
200-BK
200-BK
200-BK
235-BK
200-BK
B
M740-PK-18
B
616-BU
235-BK-18
200-BK
235-BK
200-BK
147-PU
535-BU
535-BU
L13
CONN 25
323-WH-10
168-RD-18
365-YL-18
168-RD-18
L976-GN-18
329-YL-18
168-RD-18
168-RD-18
168-RD-18
168-RD-10
365-YL-18
329-YL-18
168-RD-18
200-BK-18
L976-GN-18
L976-GN-18
365-YL-18
168-RD-18
322-GY
322-GY
322-GY
CAB
200-BK
616-BU
616-BU
200-BK
200-BK
616-BU
235-BK-14
TRAVEL SPEED
SOL
121-1491
SWING
BRAKE SOL
121-1491
200-BK-14
175-RD-14
200-BK-14
E554-PK-18
M738-OR-18
H465-GN-18
325-PK-18
535-BU
A769-GY-18
365-YL-18
L976-GN-18
L976-GN-18
309-GY-18
H466-BU-18
H467-WH-18
307-OR
307-OR
307-OR
C
103-RD
646-RD-18
535-BU
200-BK-14
200-BK-14
235-BK-18
129-BU
645-RD-18
578-BU
307-OR
310-PU
586-BR-18
147-PU
A537-PK-18
152-BU
575-YL-18
M734-BR-18
H465-GN-18
118-GY
506-PU-18
892-BR-18
893-GN-18
576-PK-18
M742-PU-18
M741-GY-18
410-WH-18
L23
150-OR-18
2
3
4
1
9
150-OR-18
H474-GN-18
H475-BU-18
K852-GN-18
K849-YL-18
150-OR-18
325-PK-18
200-BK-10
200-BK-18
200-BK-18
780-PU-18
L3
200-BK
607-PK
616-BU
2
151-GN
151-GN
1
168-RD-10
K868-BR-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
8
K879-GN-18
189-RD
3
151-GN
4
5
6
7
12
11
10
A
780-PU-18
780-PU-18
322-GY
9
124-GN-14
124-GN-14
200-BK
123-WH-18
123-WH-18
123-WH-18
113-OR-18
169-PK-18
169-PK-18
169-PK-18
169-PK-18
169-PK-18
184-RD
325-PK-18
7
8
1
154-RD
L6
235-BK-18
235-BK-18
RD-18
WH-18
BK-18
6
A
5
4
3
2
IND UNIT
163-6702
EE
ATCH SEAT WITH
SEAT HEATER
164-0505
GND
C
L. CHASSIS
B
BACKUP
EPR VALVE SW
163-6710
BACKUP
GOV SW
163-6711
ONE TOUCH
LOW IDLE SW
128-2134
S4
A
235-BK-18
H473-BR-18
K852-GN-18
K849-YL-18
235-BK-18
ATCH
HAMMER FOOT SW
138-4653
(NOTE G)
S3
H474-GN-18
2
235-BK-18
1
(NOTE B)
K855-PK-18
K867-YL-18
575-YL-18
576-PK-18
H475-BU-18
S2
S1
COM
235-BK-18
210-BK
229-BK
A768-BU-18
KEY SW
9G-7641
THROTTLE
POS SW
106-0107
R
C
S
B
OFF
K
K
ON
ST
2
1
ATCH QUICK
COUPLER SW
1G-8951
4
3
200-BK-18
103-RD-18
113-OR-18
2
535-BU
4
200-BK-18
511-BR-18
508-PU-18
512-GN-18
509-WH-18
200-BK-18
200-BK-18
1
3
576-PK-18
200-BK-14
200-BK-14
575-YL-18
OPERATOR STATION
200-BK-18
535-BU
200-BK-18
CHASSIS
GROUND STRAP
7G-1060
ATCH
HAMMER
PRESS. SW
167-3466 (NOTE J)
TRAVEL LEFT
PRESS. SW
167-3466
1
2
A
A
A
184-RD
L5
TRAVEL RIGHT
PRESS. SW
167-3466
1
2
2
1
JOYSTICK
PRESS. SW
167-3466
1
2
235-BK-18
200-BK-18
K
1
2
A
PLATFORM
A
A
ATCH
CONVERTER
134-1346
NEUTRAL START
LIMIT SW
163-6785
OPERATOR STATION
TO RADIO
512-GN-18
509-WH-18
511-BR-18
508-PU-18
A
A513-RD-18
A
2
1
ATCH LOWER
WIPER MOTOR
167-7079
+
S +1
-
MOTOR
8
6
7
4
2
5
1
3
ATCH
AUX HYD
PRESS. SW
167-3466
K854-OR-18
K853-GY-18
200-BK
325-PK-18
L4
L3
592-BU-18
H475-BU-18
H474-GN-18
GND
H467-WH-18
H466-BU-18
H465-GN-18
M741-GY-18
309-GY-18
H465-GN-18
607-PK
615-YL
607-PK
M739-YL-18
IGN
200-BK
592-BU-18
A513-RD-18
M739-YL-18
403-GN-18
K776-GN-18
L973-GN-18
M742-PU-18
M741-GY-18
403-GN-18
H467-WH-18
H466-BU-18
M741-GY-18
1
2
+B
K776-GN-18
113-OR-18
200-BK-10
235-BK-18
GROUND
SIGNAL
K776-GN-18
K776-GN-18
607-PK
YL-18
BR-18
BK-18
B
200-BK-18
200-BK-18
200-BK-18
235-BK
151-GN
780-PU-18
168-RD-10
325-PK-18
191-WH-14
B
780-PU-18
780-PU-18
200-BK-10
ATCH QUICK
COUPLER SOL2
111-9962
ATCH QUICK
COUPLER SOL1
111-9961
1
2
1
2
1
2
ATCH
REFUELING
POWER RELAY
165-4026
1
2
X X
ATCH
REFUELING
START RELAY
149-5050
ATCH
REFUELING PUMP
123-3929
ATCH
REFUELING
START SW(NO)
6T-9442
-
+
ATCH
REFUELING
STOP RELAY
149-5050
WW
P (NOTE F)
R
M
ATCH
REFUELING
STOP SW(NC)
9X-4184
1
2
200-BK-18
R
B
K776-GN-18
HORN
7Y-3920
607-PK
607-PK
235-BK-18
E472-GN-18
12V
320-RD-18
C
A
A
C
B
BK-18
BR-18
YL-18
SIGNAL
GROUND
+B
1
A587-YL
A587-YL
2
2
1
A587-YL
A587-YL
PUMP DISCHARGE
PRESS. SENSOR2
157-3182
PUMP DISCHARGE
PRESS. SENSOR1
157-3182
B
CONN 21
CONN 19
CONN 30
CONN 29
CONN 20
CONN 22
(NOTE B) ATCH
FLOW LIMIT
SOL
171-0188
(NOTE L)
200-BK
B
E554-PK-18
BR
R
R/L
323-WH-10
(NOTE B) (NOTE B)
DIODE
121-1022
G
B
POWER SHIFT
CONT SOL
111-9916
A
200-BK-14
B
B
2
5
4
3
1
6
MEM
24V
113-OR-18
103-RD-18
175-RD-14
200-BK-14
ATCH
HEATER UNIT
164-0490
C
C
A/C UNIT
CONN 15
CONN 12
CONN 13
CONN 14
CONN 16 CONN 18
161-3779
1
200-BK-18
VV
V
VV
V
V V
L973-GN-18
L973-GN-18
L973-GN-18
200-BK-18
E471-BU-18
E470-BR-18
G976-BU-18
L1
147-PU
168-RD-10
UU
K859-BR-18
200-BK-10
BBBYY
893-GN-18
892-BR-18
200-BK
200-BK-18
L973-GN-18
L973-GN-18
L973-GN-18
780-PU-18
M736-BU-18
START RELAY
125-1302
1
2
780-PU-18
168-RD-10
G976-BU-18
893-GN-18
892-BR-18
168-RD-10
780-PU-18
147-PU
147-PU
200-BK-18
L973-GN-18
L973-GN-18
200-BK-18
1
2
308-YL-18
135-BU
200-BK-14
200-BK-14
ATCH
FINE SWING
SOL
107-7056
1
2
K851-BU-18
L16
200-BK
200-BK-18
184-RD
200-BK-18
L973-GN-18
200-BK-14
(NOTE A)
(NOTE A)
(NOTE A)
F FF
200-BK-14
200-BK-14
200-BK-14
101-RD-6
403-GN-18
200-BK-18
101-RD-6
109-RD-8
B
CONN 1
306-GN
101-RD-4
200-BK-14
200-BK-18
200-BK-18
200-BK-18
235-BK-18
200-BK-18
2
191-WH-14
C569-YL
130-RD-14
A587-YL
191-WH-14
K879-GN-18
K872-OR-18
235-BK
321-BR-18
K871-WH-18
L973-GN-18
229-BK
321-BR-18
C569-YL
210-BK
135-BU
123-WH-18
147-PU
576-PK-18
310-PU
169-PK-18
893-GN-18
892-BR-18
307-OR
200-BK-14
616-BU
607-PK
607-PK
K776-GN-18
200-BK-14
322-GY
306-GN
169-PK-18
189-RD
A588-GN
A718-PU-18
L975-PK-18
306-GN
200-BK-18
118-GY
M734-BR-18
L975-PK-18
308-YL-18
200-BK-18
310-PU-18
308-YL
A718-PU-18
A770-PK-18
168-RD-10
175-RD-14
103-RD
645-RD-18
615-YL
189-RD
154-RD
307-OR
1
151-GN
147-PU
120-YL
179-BU
129-BU
152-BU
118-GY
109-RD-6
304-WH-8
877-YL-4
646-RD-18
615-YL
168-RD-10
200-BK-14
200-BK-18
200-BK-18
H467-WH-18
H466-BU-18
A537-PK-18
575-YL-18
113-OR-18
586-BR-18
M742-PU-18
BLOCK
121-1023
103-RD
ATCH
BOOM LAMP
153-2521
ATCH FINE
SWING CONT SW
163-6722
893-GN-18
877-YL-4
101-RD-6
101-RD-6
112-PU-6
L975-PK-18
200-BK-18
A718-PU-18
169-PK-18
A770-PK-18
169-PK-18
308-YL-18
200-BK-18
403-GN-18
308-YL
308-YL
330-YL
200-BK-18
310-PU-18
200-BK-18
200-BK-18
310-PU-18
892-BR-18
403-GN-18
403-GN-18
308-YL-18
308-YL
308-YL
200-BK-18
306-GN
105-RD
330-YL
101-RD-4
A770-PK-18
308-YL
A770-PK-18
169-PK-18
A770-PK-18
308-YL
607-PK
A718-PU-18
310-PU-18
200-BK-18
L975-PK-18
306-GN
306-GN
200-BK-18
169-PK-18
169-PK-18
112-PU-6
308-YL-18
308-YL-18
200-BK-18
101-RD-6
109-RD-8
304-WH-8
645-RD-18
129-BU
200-BK-14
152-BU
535-BU
578-BU
DIODE
121-1022
MAIN RELAY
165-4026
ATCH
12V 7A
SOCKET
121-0987
(NOTE D)
506-PU-18
403-GN-18
410-WH-18
BACKUP
RESISTOR
102-8016
KEY SW.(ON)
HEATER
CONT UNIT
104-3204
CHECK TERM.
RELAY
KEY SW.(START)
GND
INDICATOR
REGULATOR
TEMP.
C
308-YL
C
HEATER
RELAY
9X-8124
C
191-WH-14
C
RELAY PANEL
105-RD
308-YL
105-RD
105-RD
200-BK-18
684-RD-18
646-RD-18
200-BK-18
105-RD
308-YL
308-YL
308-YL
308-YL
308-YL
200-BK-18
105-RD
646-RD-18
684-RD-18
308-YL
684-RD-18
124-GN-14
200-BK
151-GN
154-RD
B
200-BK-14
200-BK-14
487-OR-18
189-RD
200-BK
322-GY
616-BU
607-PK
200-BK
200-BK-18
200-BK
491-PK-18
495-GN-18
496-WH-18
189-RD
147-PU
105-RD
CONSOLE (RH)
118-GY
152-BU
129-BU
179-BU
120-YL
147-PU
169-PK-18
113-OR-18
N
A588-GN
151-GN
189-RD
N
P (NOTE F)
307-OR
151-GN
306-GN
320-RD-18
322-GY
E
309-GY-18
A
189-RD
189-RD
113-OR-18
169-PK-18
123-WH-18
320-RD-18
M
M
CHASSIS
LAMP
153-2523
E
184-RD
G
E
308-YL
147-PU
184-RD
646-RD-18
ATCH
BOOM LAMP
153-2521
2
1
HORN
7Y-3919
189-RD
200-BK-18
330-YL
607-PK
615-YL
616-BU
645-RD-18
646-RD-18
892-BR-18
893-GN-18
235-BK-18
308-YL-18
130-RD-14
103-RD
175-RD-14
SSC
C
1
2
235-BK-14
124-GN-14
B
191-WH-14
E
3
C
684-RD-18
124-GN-14
A
CONSOLE (LH)
2 1
OPTION SW (3)
OPTION SW (4)
SWITCH RET
WH-18
WH-18
RD-18
RD-18
330-YL
K849-YL-18
6
5
4
3
2
1
Z
K849-YL-18
954-GN
L36
ATCH
HAMMER PRESS. SW
167-3466
(NOTE G)ATCH
HAMMER SOL
121-6303
(NOTE G)
K849-YL-18
954-GN
235-BK-18
1
200-BK-18
2
954-GN
L13
SENSOR RET
235-BK-18
L35
K870-GN-18
K865-PU-18
ATCH RELIEF 2
SOL
112-0090
(NOTE K)
1
2
11
3
21
5
6
22
23
2
24
7
4
25
20
26
10
27
28
29
8
9
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
19
18
17
16
15
14
13
12
321-BR-18
M736-BU-18
184-RD
184-RD
235-BK
235-BK
403-GN-18
B
M739-YL-18
M738-OR-18
M737-WH-18
M739-YL-18
M739-YL-18
M739-YL-18
A
C
B
1
1
12
13
14
15
16
17
9
8
29
28
27
18
19
10
30
31
26
32
20
33
25
4
7
24
34
2
35
36
2
1
ATCH RELIEF
CHECK 2 SOL
165-9560
(NOTE K)
K875-BU-18
37
K850-BR-18
SWITCH RETURN
AUTO LUB FAILURE
ATCH STEM4 SWING CANCEL
K849-YL-18
GOVERNOR COMMAND
K849-YL-18
+B
38
39
40
41
K849-YL-18
42
43
44
45
K849-YL-18
46
47
K849-YL-18
K852-GN-18
K852-GN-18
K852-GN-18
K851-BU-18
48
49
50
51
52
53
54
23
22
6
5
21
3
308-YL
GND
K904-GN-18
487-OR-18
K907-BU-18
C468-BU-18
L975-PK-18
496-WH-18
A758-BR-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
430-BU-18
412-BU-18
A762-PU-18
788-YL-18
A757-GY-18
A756-BU-18
A755-PK-18
L969-WH-18
K851-BU-18
T967-YL-18
SENSOR RET
GOVERNOR FEEDBACK
TRAVEL ALARM CANCEL IND
L972-BU-18
AEC MODE IND
A761-PU-18
OPTION SW
L968-OR-18
893-GN-18
892-BR-18
410-WH-18
M736-BU-18
GND
ONE TOUCH LOW IDLE SW
OPTION CONTROL PRV
KEY SW ON
M734-BR-18
OPTION SW
TRAVEL MODE IND
FLOW LIMIT PRESS PRV
FINE SWING SW
AIR HEATER CONTROLLER
+B
CAPSULE FILTER PLUGGED
ATCH STEM1 SWING CANCEL
(NOTE A)
SPECIAL FILTER PLUGGED
RR
PP
POWER SHIFT CONTROL PRV
SWING BRAKE CANCEL SOL
ENG OIL PRESS SW
TRAVEL ALARM
ALTERNATOR R TERM.
COOLANT TEMP SENSOR
WATER SEPARATOR LEVEL SW
HYD OIL TEMP SENSOR
AIR CLEANER PLUGGED
HYD OIL LEVEL SW
FUEL LEVEL
ENG OIL LEVEL SW
RELAY PANEL
PRIMARY NFC PRESS PRV
PRV RETURN (2)
SPEED SENSOR (-)
A
GROUND STRAP
132-1806
B
B
B
B
B
SPEED SENSOR (+)
COOLANT LEVEL SW
PRV RETURN (1)
THROTTLE POSITION 4
THROTTLE POSITION 3
THROTTLE POSITION 2
THROTTLE POSITION 1
TRAVEL ALARM CANCEL SW
+12V SUPPLY
FUEL PRIMARY FILTER PLUGGED
FUEL SECONDARY FILTER PLUGGED
PUMP DISCHARGE(2) PRESS SENSOR
L34
L33
L32
L31
L30
L28
O.L.W.D. PRESS SENSOR
L28
AEC MODE SW
TRAVEL MODE SW
L27
L26
BACKUP SW
OPTION PWM IN (1)
TRAVEL RIGHT PRESS SW
TRAVEL LEFT PRESS SW
JOYSTICK PRESS SW
CAT DATA LINK (+)
CAT DATA LINK (-)
ATCH STEM2 SWING CANCEL
FAULT ALARM
TRAVEL SPEED CHANGE SOL
PRV RETURN (3)
PRV RETURN (4)
FAN MOTOR CONTROL PRV
OPTION CONTROL PRV
L18
L19
L19
L18
HEATER RELAY/STARTER RELAY
TRAVEL STRAIGHT SOL
OPTION VOLTAGE SW (1)
K851-BU-18
645-RD-18
M734-BR-18
646-RD-18
K851-BU-18
113-OR-18
129-BU
410-WH-18
A584-BU-18
506-PU-18
118-GY
892-BR-18
893-GN-18
169-PK-18
C538-OR-18
C537-GN-18
535-BU
152-BU
200-BK
A579-OR
200-BK
A580-BR
A581-GN
A582-PU
152-BU
535-BU
C537-GN-18
C538-OR-18
201-BK-18
169-PK-18
892-BR-18
893-GN-18
893-GN-18
K851-BU-18
200-BK
200-BK-18
200-BK-18
200-BK
200-BK
129-BU
410-WH-18
200-BK-18
A586-OR-18
530-OR-18
A579-OR
118-GY
506-PU-18
A580-BR
501-GN-18
A581-GN
L19
A582-PU
A584-BU-18
892-BR-18
590-GY-18
530-OR-18
200-BK
501-GN-18
A586-OR-18
200-BK
615-YL
Y/G
Y/W
590-GY-18
113-OR-18
200-BK-18
K851-BU-18
646-RD-18
235-BK-18
M734-BR-18
K851-BU-18
645-RD-18
235-BK-18
200-BK
645-RD-18
590-GY-18
A584-BU-18
A582-PU
A581-GN
501-GN-18
A580-BR
506-PU-18
118-GY
200-BK
200-BK
201-BK-18
M734-BR-18
646-RD-18
A579-OR
530-OR-18
A586-OR-18
200-BK-14
L18
A584-BU-18
200-BK-18
200-BK-18
200-BK-14
410-WH-18
535-BU
152-BU
169-PK-18
201-BK-18
103-RD-18A582-PU
A581-GN
A586-OR-18
501-GN-18
A580-BR
530-OR-18
200-BK
C538-OR-18
C537-GN-18
A579-OR
129-BU
615-YL
200-BK
200-BK-18
113-OR-18
590-GY-18
615-YL
615-YL
200-BK
615-YL
200-BK
615-YL
200-BK
A584-BU-18
200-BK-18
200-BK-14
200-BK
200-BK-18
200-BK
200-BK
200-BK
200-BK
607-PK-18
200-BK
200-BK
200-BK
200-BK-18
200-BK-18
(NOTE A)
C538-OR-18
ACTION ALARM
132-1829
F F
CDL -
19
18
17
16
C537-GN-18
F
W. INT (6)
FF
F
15
6
3
4
5
12
11
7
13
8
14
10TRAVEL MODE IND 1
TRAVEL MODE SW
20
7
6
5
1
TRAVEL MODE IND 2
1
2
7
6
5
4
3
8
1
2
4
3
2
9
1
2
F
CONN 28
CONN 31
CONN 32
CONN 33
INT (3)
RISE. S
WIPER CUT
LOW
WA+
ACC
WASH
GND
STOP
REV
W. CW
W. CCW
HH
INT (6)
-
+
8
A/C SW PANEL
157-3210
3
F
9
4
11
ATCH UNDER
WINDOW LIMIT SW
129-6466
AEC MODE IND
8
AEC MODE SW
5
ALARM CANCEL IND
ALARM CANCEL SW
F
CAB
WINDOW LIMIT SW
117-6306
F
F
6
+B
L. CHASSIS
L. BOOM
WASH
W. LOW
W. INT (3)
GND
GND
LIGHT
CDL +
+B
+12V
ACC
WIPER
MOTOR
161-3667
WIPER CONT
155-7042
F
7
10
ATCH
CAB LAMP
167-3441
L
MONITOR
177-7700
SWITCH PANEL
163-6701
A/C PHOTO
SENSOR
167-7083
12
13
SERVICE
METER
6T-7337
MOTOR
2
1
L
F
CIGAR
LIGHTER
9W-0335
F
235-BK-18
235-BK-18
L35
200-BK
H476-WH-18
763-BU-18
H476-WH-18
578-BU
M741-GY-18
(NOTE A)
M741-GY-18
M742-PU-18
M742-PU-18
A537-PK-18
H465-GN-18
200-BK-18
200-BK-18
575-YL-18
576-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
123-WH-18
535-BU-18
535-BU-18
M739-YL-18
M739-YL-18
H467-WH-18
H476-WH-18
M742-PU-18
M741-GY-18
M739-YL-18
H467-WH-18
H467-WH-18
H467-WH-18
H466-BU-18
H467-WH-18
H466-BU-18
M741-GY-18
M742-PU-18
M741-GY-18
M738-OR-18
M737-WH-18
H467-WH-18
H466-BU-18
309-GY-18
ALT REGULATOR
403-GN-18
403-GN-18
L14
200-BK-18
235-BK-18
235-BK-18
235-BK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
235-BK-18
235-BK-18
H473-BR-18
H473-BR-18
H473-BR-18
H473-BR-18
H473-BR-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
K871-WH-18
K872-OR-18
200-BK
235-BK-18
506-PU-18
200-BK-18
578-BU
412-BU-18
200-BK-18
430-BU-18
325-PK-18
506-PU-18
578-BU
200-BK-18
200-BK-18
RD-00
RD-00
BK-00RD-00
RD-00 BK-00
430-BU-18
235-BK-18
235-BK-18
412-BU-18
147-PU
147-PU
B
WASHER
7T-8890
ATCH
LOWER WASHER
7T-8890
MOTOR
AIR CLEANER
SW
154-0498
COOLANT
LEVEL SW
096-0744
BATTERY
3T-5760
POS
NEGNEG
POS
ATCH
BATTERY
3T-5760
(NOTE C)
POSNEG NEGPOS
HH (NOTE C)GG (NOTE C)FF (NOTE C)
B
B
CCBBAA
B
MOTOR
496-WH-18
495-GN-18
491-PK-18
487-OR-18
A768-BU-18
A769-GY-18
T967-YL-18
K904-GN-18
L11
11
Y
H466-BU-18
M737-WH-18
M738-OR-18
321-BR-18
M738-OR-18
M739-YL-18
892-BR-18
893-GN-18
235-BK-18
M737-WH-18
M737-WH-18
M738-OR-18
M739-YL-18
309-GY-18
309-GY-18
H475-BU-18
H476-WH-18
H474-GN-18
ANALOG SENSOR RETURN
PUMP DISCHARGE(1) PRESS SENSOR
OVER LOAD ALARM CANCEL SW
H467-WH-18
H466-BU-18
M742-PU-18
M741-GY-18
C
HH (NOTE C)
CC
GROUND STRAP
167-3583
235-BK
T967-YL-18
309-GY-18
ATCH STEM3 SWING CANCEL
235-BK
235-BK
L21
L27
L26
L25
L25
L24
L25
L24
L23
L23
L12
L19
CONN 17
L18
L13
L12
E472-GN-18
E472-GN-18
K843-GN-18
K847-PU-18
K844-GY-18
K848-WH-18
E474-OR-18
E473-GY-18
L17
L17
L15L15
L2
L2
235-BK-14
235-BK-14
235-BK-14
130-RD-14
130-RD-14
130-RD-14
L2 L2
308-YL
308-YL
308-YL
308-YL
308-YL
235-BK-18
235-BK-18
E476-PU-18
E475-PK-18
308-YL
K852-GN-18
K904-GN-18
487-OR-18
K907-BU-18
C468-BU-18
L975-PK-18
496-WH-18
A758-BR-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
430-BU-18
412-BU-18
A762-PU-18
788-YL-18
A757-GY-18
A756-BU-18
A755-PK-18
L969-WH-18
L972-BU-18
A761-PU-18
K852-GN-18
L968-OR-18
235-BK
410-WH-18
235-BK-18
235-BK-18
CAB
K851-BU-18
FREE SWING SW
CREEPER TRAVEL FUNCTION SW
TRAVEL STRAIGHT PRESS SW
235-BK-18
H475-BU-18
H474-GN-18
M734-BR-18
H465-GN-18
200-BK
200-BK
235-BK-18
763-BU-18
K852-GN-18
E472-GN-18
ATCH LOWER
WIPER SW
163-6718
M741-GY-18
H465-GN-18
M742-PU-18
H466-BU-18
H467-WH-18
ATCH LOWER
WASHER SW
163-6719
ATCH SEAT
HEATER SW
163-6721
F FF
H474-GN-18
H476-WH-18
H475-BU-18
235-BK-18
309-GY-18
235-BK-18
K849-YL-18
235-BK-18
ENG/PUMP CONT
157-3165
235-BK-18
235-BK-18
L1
L20
L1
L22
L14
L12
L22
L13
L35
L35
L13
L22
L12
L12
L22
K867-YL-18
235-BK-18
235-BK-18
235-BK-18
492-GY-18
A718-PU-18
109-RD-6
L13
403-GN-18
E554-PK-18
101-RD-4
304-WH-8
235-BK-18
E554-PK-18
E554-PK-18
405-GY-18
C468-BU-18
M736-BU-18
308-YL
F774-WH-18
F773-OR-18
189-RD
788-YL-18
A762-PU-18
877-YL-4
189-RD
A761-PU-18
F773-OR-18
C468-BU-18
F774-WH-18
308-YL
M736-BU-18
200-BK-18
A761-PU-18
BK
WH
C468-BU-18
405-GY-18
235-BK-18
304-WH-8
101-RD-4
F773-OR-18
F774-WH-18
L10
A718-PU-18
200-BK-18
304-WH-8
RD-00
RD-00
788-YL-18
A762-PU-18
L35
200-BK-6
E476-PU-18
101-RD-4
309-GY-18
109-RD-6
E475-PK-18
200-BK-6
492-GY-18
877-YL-4
A718-PU-18
492-GY-18
308-YL
M736-BU-18
200-BK-18
492-GY-18
A718-PU-18
235-BK-18200-BK-18
200-BK-18
109-RD-6
403-GN-18
200-BK-18
200-BK-6
200-BK-18
101-RD-4
304-WH-8
235-BK-18
405-GY-18
235-BK-18
235-BK-18
200-BK-18
C468-BU-18
M736-BU-18
308-YL
F774-WH-18
F773-OR-18
A761-PU-18
200-BK-18
189-RD
A761-PU-18
309-GY-18
109-RD-6
(NOTE A)
200-BK-18
200-BK-18
405-GY-18
235-BK-18
L22
L35
877-YL-4
A762-PU-18
788-YL-18
147-PU
147-PU
235-BK-18
189-RD
877-YL-4
A762-PU-18
788-YL-18
496-WH-18
495-GN-18
491-PK-18
235-BK-18
235-BK-18
607-PK
616-BU
322-GY
200-BK
487-OR-18
L35
200-BK
A768-BU-18
A769-GY-18
T967-YL-18
K904-GN-18
200-BK
M739-YL-18
M737-WH-18
M738-OR-18
E554-PK-18
ENG
AIH COOLANT
TEMP SENSOR
170-9486
2
1
AIR HEATER
5I-7746
GND
F/B
+B
ACCEL
1
2
DECEL
6
ENG GOV
ACTUATOR
157-3177
KEY
ENG OIL
LEVEL SW
170-9376
1
2
BATMTR
SG
STARTER
MOTOR
125-2988
2
1
ENG SPEED
PICKUP
178-6540
A/C CLUTCH
SOL
176-1895
(NOTE E)
MOTOR
B
GND
B
5
4
B
B
8
7
ESS
CHASSIS
3
235-BK-18
L21
L19
L18
L28
FF (NOTE C)
235-BK-18
AA
ALTERNATOR
5I-8085
(50A)
COOLANT TEMP
SENDER
5I-7578
K874-BR-18
235-BK-18
K864-PK-18
K870-GN-18
K867-YL-18
K871-WH-18
K872-OR-18
L21
L37
L16
L17
L23 L23
L17
L23
S
L
E
B
H466-BU-18
(NOTE A)
M740-PK-18
M740-PK-18
K872-OR-18
K871-WH-18
ATCH RELIEF 1
SOL
112-0090
(NOTE K)
Z
2
1
K870-GN-18
200-BK-18
K849-YL-18
954-GN
LLUU
ALT BREAKER
9S-0174
60A
101-RD-6
1
2
K864-PK-18
SS
235-BK-18
K874-BR-18
2
1
1
2
ATCH 1WAY/2WAY
CONT SOL
165-9560
(NOTE K)
K866-WH-18
235-BK-18
L29
S
L9
308-YL
308-YL
K867-YL-18
K867-YL-18
K867-YL-18
308-YL
K843-GN-18
K847-PU-18
130-RD-14
235-BK-14
K844-GY-18
K848-WH-18
308-YL
893-GN-18
892-BR-18
151-GN
K866-WH-18
K874-BR-18
K875-BU-18
K855-PK-18
K860-BU-18
K858-YL-18
K863-OR-18
K864-PK-18
K849-YL-18
K852-GN-18
K857-WH-18
K862-GY-18
K865-PU-18
K851-BU-18
E469-YL-18
E474-OR-18
K856-PU-18
K861-GN-18
K859-BR-18
K850-BR-18
E470-BR-18
E473-GY-18
K867-YL-18
K868-BR-18
E475-PK-18
K869-BU-18
ATCH VALVE CONT
157-3200
(NOTE L)
11
K870-GN-18
E471-BU-18
K853-GY-18
E472-GN-18
K854-OR-18
K853-GY-18
E471-BU-18
K870-GN-18
K869-BU-18
K868-BR-18
K867-YL-18
E473-GY-18
E470-BR-18
K850-BR-18
K859-BR-18
K861-GN-18
K856-PU-18
E474-OR-18
E469-YL-18
K851-BU-18
K865-PU-18
K862-GY-18
K857-WH-18
K852-GN-18
K849-YL-18
L8
K864-PK-18
L8
K863-OR-18
L25
K858-YL-18
K860-BU-18
K855-PK-18
K875-BU-18
K854-OR-18
E472-GN-18
200-BK-6
K874-BR-18
200-BK-14
200-BK-18
200-BK-14
E554-PK-18
147-PU
586-BR-18
310-PU
506-PU-18
K849-YL-18
K852-GN-18
326-RD
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
308-YL
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
A623-BU-18
200-BK
200-BK-14
200-BK-14
M741-GY-18
M741-GY-18
H465-GN-18
M742-PU-18
H465-GN-18
M742-PU-18
M734-BR-18
L6
200-BK-14
235-BK-18
235-BK-18
321-BR-18
403-GN-18
235-BK-18
K866-WH-18
BB
K870-GN-18
ATCH RELIEF
CHECK 1 SOL
165-9560
(NOTE K)
607-PK
147-PU
235-BK-18
M737-WH-18
M738-OR-18
B
147-PU
K875-BU-18
Z
K904-GN-18
T967-YL-18
A769-GY-18
A768-BU-18
487-OR-18
491-PK-18
A768-BU-18
A769-GY-18
496-WH-18
T967-YL-18
487-OR-18
L6
K904-GN-18
H465-GN-18
235-BK-18
893-GN-18
892-BR-18
M736-BU-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
YL
BK
235-BK-18
RD
BB
495-GN-18
BK
5A
491-PK-18
235-BK
235-BK-18
496-WH-18
235-BK
147-PU
235-BK
147-PU
235-BK
235-BK
235-BK
235-BK-18
200-BK
235-BK-18
103-RD
607-PK
103-RD
L14
P
R
ALT
B
B
2
1
E554-PK-18
JJ
JJ
JJ
H466-BU-18
H465-GN-18
K854-OR-18
K853-GY-18
200-BK-18
S
200-BK-18
147-PU
A537-PK-18
586-BR-18
310-PU
147-PU
307-OR
307-OR
410-WH-18
893-GN-18
892-BR-18
506-PU-18
E471-BU-18
H466-BU-18
M734-BR-18
H467-WH-18
308-YL
152-BU
780-PU-18
578-BU
645-RD-18
K869-BU-18
K868-BR-18
K867-YL-18
E470-BR-18
129-BU
K859-BR-18
200-BK-14
175-RD-14
308-YL
646-RD-18
K861-GN-18
K856-PU-18
K870-GN-18
K862-GY-18
K857-WH-18
K865-PU-18
K863-OR-18
K858-YL-18
780-PU-18
780-PU-18
K860-BU-18
200-BK-14
118-GY
ATCH
HEATER SW PANEL
176-2005
K870-GN-18
B
JJ
H465-GN-18
M742-PU-18
150-OR-18
103-RD
403-GN-18
150-OR-18
150-OR-18
308-YL
K906-GN-18
200-BK-18
E472-GN-18
200-BK-18
H474-GN-18
H475-BU-18
200-BK-18
154-RD
151-GN
189-RD
150-OR-18
150-OR-18
A537-PK-18
200-BK-14
K866-WH-18
151-GN
E476-PU-18
325-PK-18
K879-GN-18
K879-GN-18
K879-GN-18
H475-BU-18
H474-GN-18
M736-BU-18
A755-PK-18
F774-WH-18
F773-OR-18
892-BR-18
168-RD-10
893-GN-18
308-YL
K907-BU-18
113-OR-18
A770-PK-18
169-PK-18
200-BK-18
169-PK-18
L969-WH-18
169-PK-18
184-RD
184-RD
184-RD
184-RD
308-YL
C569-YL
C569-YL
L3
200-BK
120-YL
135-BU
120-YL
K848-WH-18
K844-GY-18
235-BK-14
235-BK-14
L968-OR-18
A769-GY-18
130-RD-14
3
21
5
6
22
23
54
53
52
51
50
49
48
OPTION PWM SENSOR (1)
+B
130-RD-14
RIGHT JOYSTICK SW (1)
ATCH TOOL SW (2)
LEFT JOYSTICK SW (2)
LEFT JOYSTICK SW (1)
GND
KEY SW
A768-BU-18
ATT STEM 2 EXTEND PRV
325-PK-18
L7
ATT STEM 2 STATUS
ATT STEM 2 RETRACT PRV
ATT STEM 4 EXTEND PRV
PRV RET
OPERATOR STATION
47
46
MASK ENABLE
45
44
200-BK-14
43
VARIABLE RELIEF 1 PRV
42
41
105-RD
40
308-YL
326-RD
307-OR
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
39
38 PRV RET
HYD LOCK CANCEL SW
VARIABLE RELIEF 2 PRV
ATT STEM 3 EXTEND PRV
ATT STEM 4 RETRACT PRV
ATT STEM 3 RETRACT PRV
K847-PU-18
ATCH TOOL SW (3)
ATCH TOOL SW (4)
ATCH TOOL SW (1)
PRV RET
PUMP2 NFC REDUCE PRV
PUMP1 NFC REDUCE PRV
37
7
8
9
10
11
12
12V 7A
ATCH 12V 7A
CONVERTER
167-3467
200-BK-18
12V OUT
RS-232 TX
QUICK COUPLER
+B
PRV RET
OPTION SW (1)
36
35
GND
2
34
GND
24
12V POWER SUPPLY
ATT STEM 1 EXTEND PRV
24V IN
24V MEMORY
H473-BR-18
7
4
1WAY/2WAY CHANGE SOL
RIGHT FOOT PEDAL
235-BK-18
CAT LINK -
RS-232 RX
PRV RET
SEPARATE VALVE PRV
25
33
ATT STEM 3 STATUS
20
32
PRV RET
CAT LINK +
RIGHT JOYSTICK SW (2)
RIGHT JOYSTICK THUMB WHEEL
26
31
30
10
19
18
27
28
29
8
9
17
16
15
14
13
12
L7
1
1
VARIABLE RELIEF 1 CHECK SOL
ATT STEM 1 RETRACT PRV
GND
VARIABLE RELIEF 2 CHECK SOL
PUMP1 NEG CONT PRESS. SENSOR
PUMP2 NEG CONT PRESS. SENSOR
ATT STEM 4 STATUS
ATT STEM 1 STATUS
RS-232 GND
LEFT FOOT PEDAL
LEFT JOYSTICK THUMB WHEEL
S
K843-GN-18
12V MEMORY
SEPARATE LOAD PRESS. SENSOR
1
12
13
14
15
16
17
18
19
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
9
5
8
200-BK-14
2
3
29
28
27
10
26
20
25
4
7
24
2
23
22
L5
6
5
21
3
11
6
44
6
3
2
5
1
C569-YL
210-BK
135-BU
E554-PK-18
179-BU
200-BK
200-BK
L5
L4
147-PU
H465-GN-18
200-BK
578-BU
K906-GN-18
410-WH-18
A755-PK-18
F774-WH-18
F773-OR-18
K907-BU-18
M736-BU-18
892-BR-18
893-GN-18
L3
M734-BR-18
200-BK-18
L969-WH-18
L968-OR-18
A769-GY-18
A768-BU-18
308-YL
179-BU
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
K849-YL-18
K852-GN-18
506-PU-18
120-YL
615-YL
200-BK-18
607-PK
607-PK
607-PK
607-PK
578-BU
506-PU-18
L973-GN-18
L973-GN-18
310-PU
586-BR-18
L973-GN-18
403-GN-18
M734-BR-18
892-BR-18
893-GN-18
410-WH-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
326-RD
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
M736-BU-18
K852-GN-18
K849-YL-18
H476-WH-18
H474-GN-18
H475-BU-18
E554-PK-18
607-PK
607-PK
607-PK
307-OR
A770-PK-18
169-PK-18
105-RD
189-RD
151-GN
154-RD
200-BK
103-RD
646-RD-18
200-BK
129-BU
645-RD-18
152-BU
118-GY
147-PU
615-YL
607-PK
607-PK
607-PK
189-RD
113-OR-18
321-BR-18
169-PK-18103-RD
113-OR-18
615-YL
154-RD
307-OR
151-GN
308-YL
105-RD
152-BU
123-WH-18
118-GY
147-PU
120-YL
179-BU
129-BU
124-GN-14
124-GN-14
147-PU
235-BK-18
2
1
ATCH
REFUELING SW
5C-6108
HYD OIL
FILTER SW
116-3660
HYD OIL
TEMP SENDER
4I-5394
HYD OIL
LEVEL SW
170-9376
1
2
2
1
SIGNAL
GROUND
B
1
2
FUEL LEVEL
SENSOR
163-6700
2
FUSE
5A 141-2759
10A 113-8490
15A 113-8491
30A 124-3548
120-YL
FUSE BASE
183-1000
210-BK
191-WH-14
191-WH-14
191-WH-14
175-RD-14
645-RD-18
646-RD-18
607-PK
200-BK
200-BK
K906-GN-18
1
ATCH
TRAVEL ALARM
3E-7738
ATCH
CAB LAMP
167-3441
L
L
JJ
CONN 11
CONN 11
607-PK
607-PK
160-PU
320-RD-18
320-RD-18
320-RD-18
A587-YL
5A
A587-YL
A587-YL
A587-YL
A587-YL
168-RD-10
780-PU-18
321-BR-18
B
235-BK-18
200-BK
10A
10A
160-PU-18
DIODE
121-1022
K776-GN-18
5A
147-PU
G976-BU-18
235-BK-18
A
FF
C
B
+B
GROUND
SIGNAL
ATCH
WATER
SEPARATOR
LEVEL SENSOR
158-8662
G976-BU-18
TT
TT
235-BK-18
200-BK-10
C569-YL
147-PU
200-BK
179-BU
120-YL
229-BK
120-YL
200-BK
135-BU
179-BU
L973-GN-18
12
11
10
9
8
10A
15A
235-BK-18
235-BK-18
7
229-BK
210-BK
M736-BU-18
M736-BU-18
1
5
200-BK-14
200-BK-14
175-RD-14
2
F
210-BK
135-BU
SW RET
OPTION SW (2)
S
15A
(NOTE A)
CONN 8
B
1
2
3
4
5
6 K852-GN-18
K851-BU-18
K776-GN-18
K850-BR-18
K849-YL-18
229-BK
K776-GN-18
K776-GN-18
893-GN-18
892-BR-18
892-BR-18
893-GN-18
229-BK
K851-BU-18
A770-PK-18
403-GN-18
124-GN-14
135-BU
210-BK
E472-GN-18
E472-GN-18
169-PK-18
K852-GN-18
308-YL
K850-BR-18
K849-YL-18
308-YL
320-RD-18
5A
113-OR-18
123-WH-18
G976-BU-18
G976-BU-18
123-WH-18
168-RD-10
T
T
10A
T
184-RD
210-BK
410-WH-18
ENG OIL SW
5I-8005
K906-GN-18
578-BU
11
10
9
2
1
8
3
4
5
6
7
45
44
43
42
135-BU
229-BK
C569-YL
3
200-BK-18
6
4
403-GN-18
ATCH 12V 7A
CONVERTER
167-3467
12V OUT
41
40
GND
GND
24V IN
24V MEMORY
12V MEMORY
1
5
2
3
6
4
4
6
3
2
5
1
12V MEMORY
24V MEMORY
24V IN
GND
39
GND
403-GN-18
38
37
36
35
34
33
54
53
32
12V OUT
31
30
29
52
ATCH 12V 7A
CONVERTER
167-3467
51
28
27
26
25
24
12V 7A X 2 (NOTE D)
23
22
50
49
14
13
12
15
16
17
20
19
18
21
48
47
46
AB
124-GN-14
124-GN-14
L973-GN-18
130-RD-14
160-PU
149-RD
115-RD
(NOTE A)
114-RD
118-GY
152-BU
129-BU
179-BU
120-YL
403-GN-18
645-RD-18
147-PU
113-OR-18
169-PK-18
180-GN
103-RD
105-RD
110-RD
175-RD-14
123-WH-18
123-WH-18
330-YL
403-GN-18
200-BK-18
5A
WH/GN
110-RD
189-RD
200-BK
308-YL
607-PK
WH/YL
112-PU-6
101-RD-6
109-RD-6
308-YL-18
235-BK-18
893-GN-18
892-BR-18
645-RD-18
149-RD
616-BU
115-RD
615-YL
607-PK
160-PU
147-PU
120-YL
179-BU
129-BU
152-BU
118-GY
235-BK-18
114-RD
322-GY
306-GN
154-RD
307-OR
189-RD
151-GN
A588-GN
615-YL
115-RD
175-RD-14
110-RD
105-RD
103-RD
114-RD
115-RD
149-RD
160-PU
130-RD-14
616-BU
149-RD
646-RD-18
892-BR-18
893-GN-18
235-BK-18
308-YL-18
200-BK-18
101-RD-6
BK
YL
WH/BU
5A
UU
A588-GN
151-GN
189-RD
200-BK-18
646-RD-18
307-OR
154-RD
306-GN
C
112-PU-6
320-RD-18
322-GY
114-RD
K776-GN-18
309-GY-18
403-GN-18
684-RD-18
L973-GN-18
184-RD
191-WH-14
684-RD-18
200-BK-18
POWER WINDOW
191-WH-14
10A
5A
CHASSIS
ATT SOL
10A
10A
5A
15A
10A
10A
10A
CAB LAMP
BOOM LAMP
CHASSIS LAMP
10A
10A
LOWER WIPER/WASHER
WIPER/WASHER
CIGAR LIGHTER
12V 7A CONVERTOR 1
12V 7A CONVERTOR 2
15A
15A
15A
10A
15A
10A
10A
10A
SW PANEL/RADIO
BACKUP/MONITOR CONT
10A
10A
A/C
SEAT HEATER
KEY SW
TIMER RELAY
ATCH V CONT
A/C BLOWER
E/P CONT
AUX CKT
DOME LAMP/MEMORY
HORN
10A
5A
C
C
C
DISCONNECT SW.
7N-0718
7N-0719 (NOTE C)
C
C
C
C
NEUTRAL START RELAY
161-3128
HYD LOCK SOL RELAY
161-3128
C
L
S
P
R
OUT
GND
IN
+B
2
4
3
GND
TIMER RELAY
163-6703
J
H
G
F
A
E
D
C
B
1
30A
30A
CAB LAMP RELAY
161-3128
HORN RELAY
161-3128
ET CONN
CONN 2
CHASSIS LAMP RELAY
161-3128
BOOM LAMP RELAY
161-3128
START CONT
RELAY
094-2080
10A
OPERATOR STATION
780-PU-18
(NOTE D)
(NOTE G)
(NOTE L)
(NOTE K)
G-7Z 183-1061
NOTE L: USE WITH CONFIG.3 AND 14.
E H-2170-6953
170-6959
NOTE D: USE WITH 12V 7A X 2 CONVERTER.
H-11
H-11
G-8
163-6751 G-8EE
DD G-8
G-8
G-8
G-8
163-6758 H-7SS
RR
J-2
163-6780
163-6753
D
PP
NN 111-4829
163-6757MM
LL 163-6755
163-6754KK
C G-9163-6740
186-4605 G-5B
WIRE AS.
HH J-12170-9331
116-0080 J-12GG
FF B-12170-9364
163-6775 J-12CC
BB
UNLESS OTHERWISE SPECIFIED
ALL WIRE IS 16 GAUGE.
A G-5163-6749
COMPONENTS ARE SHOWN INSTALLED
ON A FULLY OPERABLE MACHINE WITH
THE KEY ON AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 320C EXCAVATOR
170-6906 HE01.
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
183-0998
NOTE E: NOT USE WITH HEATER UNIT.
Y C-6
(NOTE C)
NOTE B: NOT USED ON THIS MACHINE.
(NOTE C)
NOTE A: WIRE PAIRS MUST BE TWISTED AT LEAST
1 TURN PER 25MM.
NOTE C: USE WITH COLD WEATHER.
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
IDENT PART NO. LOC
HARNESS AS.
GOLD TERMINAL
NOTE H: USE WITH CAB GUARD LAMP.
NOTE G: USE WITH CONFIG.3.
NOTE K: USE WITH CONFIG.14.
H-11
(NOTE H)VV F-1170-9295
D-7S 193-3374
NOTE F: USE WITH SHORT BOOM.
140-0923R C-2
C-2P 4I-5396
116-0227N C-2
C-2M 163-6750
167-3456L F-1
D-5K 167-3527
167-3457J J-6
F-1H 163-6810
170-6828
A-3X 116-0098
116-0096W A-3
B-3V 170-9332
132-1827TT A-5
E-12U 167-3455
167-3473T J-6
G
F-5F 163-6787
J-12116-0080
G-1
NOTE J: USE WITH CONFIG.5.
CABLE AS.
163-6774
163-6752
UU 170-9478
B-12AA
(NOTE C)
(NOTE F)
CONN 34
C538-OR-18
C537-GN-18
REFULING PUMP
A
B
C
D
E
F
G
H
J
1112
9 8 7 4
10
6 5
1
23
B
C
D
E
A
F
G
H
J
12 11 10
9 8 7 6 5 4
1
3 2
STARTING CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER
CIRCUIT.
GROUND CIRCUIT.
VALVE CONTROL CIRCUIT.
START AID CIRCUIT.
ENGINE PUMP CONTROL CIRCUIT.
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.