322C EXCAVATOR ELECTRICAL SCHEMATIC USED IN SERVICE MANUAL RENR3830

RENR3841
February 2001
322C Excavator Electrical System
322C:
BFN1-UP
BFX1-UP
BKM1-UP
BLP1-UP
BMX1-UP
BNY1-UP
©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
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Machine Harness Connector And Component Locations
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
A/C Switch Panel D-1
1A
Solenoid - A/C Clutch C-12
25
A/C Unit D-5
1
Solenoid - ATCH 1Pump-2Pump Exchange 1 H-12
G
Actuator - Engine Governor A-12
2
Solenoid - ATCH 1Way/2Way Control B-2
26
Air Heater C-11
3
Solenoid - ATCH Fine Swing C-4
27
Alarm - ATCH Travel A-6
4
Solenoid - ATCH Flow Limit A-8
6F
Alarm - Fault F-3
2A
Solenoid - ATCH Primary NFC A-8
7F
Alternator B-11
5
Solenoid - ATCH Pump 1 Flow Control A-11
8F
Antenna C-5
6
Solenoid - ATCH Pump 2 Flow Control A-11
9F
ATCH Heater Switch Panel D-1
1A
Solenoid - ATCH Quick Coupler 1 C-2
28
ATCH Seat With Seat Heater H-2
7
Solenoid - ATCH Quick Coupler 2 C-2
29
Battery I-11
8
Solenoid - ATCH Relief Check 1 B-2
30
Battery - ATCH I-11
8
Solenoid - ATCH Relief Check 2 B-2
31
Block As. G-8
1E
Solenoid - ATCH Relief/Check 1 B-2
30
Breaker - ALT H-11
2E
Solenoid - ATCH S Action 1 C-4
27
Cigar Lighter F-2
4A
Solenoid - ATCH S Action 2 B-4
27
Control - ATCH Power Window G-4
A
Solenoid - ATCH Separate Valve D-12
2G
Control - ATCH Valve F-11
3E
Solenoid - ATCH Start Aid I-12
32
Control - Engine/Pump E-7,D-7
4E
Solenoid - ATCH Stem 1 Control (B) D-12
10F
Control - Heater H-7
5E
Solenoid - ATCH Stem 2 Control (A) D-11
11F
Control - Wiper F-2
19A
Solenoid - ATCH Stem 2 Control (B) D-12
12F
Converter - ATCH 12V 7A (2) I-6
1D
Solenoid - ATCH Stem 3 Control (B) D-12
13F
Converter - ATCH 12V 7A I-5
1D
Solenoid - ATCH Stem 4 Control (A) D-11
14F
Converter - ATCH D-5
21A
Solenoid - ATCH Stem 4 Control (B) D-12
15F
Diode H-10
D
Solenoid - ATCH Stem 3 Control (A) D-11
16F
Diode (3) H-8
D
Solenoid - DBL Action G-12
G
Engine Speed Pickup B-12
9
Solenoid - Engine Shutdown B-12
33
ET Connector I-11
20E
Solenoid - Hydraulic Lock B-8
3G
Fuses H-11
6E
Solenoid - Power Shift Control A-9
17F
Heater - ATCH D-5
1
Solenoid - Swing Brake B-8
4G
Horn (2) C-3
10
Solenoid - Travel Speed B-8
5G
Indicator Unit H-1
1B
Solenoid - Travel Straight B-8
6G
Joystick - ATCH I-3
2B
Solenoid- ATCH 1Pump-2Pump Exchange 2 G-12
G
Joystick - ATCH H-1
1C
Solenoid- ATCH Stem 1 Control (A) D-11
18F
Lamp - ATCH Boom C-2
11
Speaker - ATCH G-4
11A
Lamp - ATCH Cab (2) G-1
12
Speaker - ATCH (L) G-4
11A
Lamp - Chassis A-3
13
Switch - Air Cleaner H-12
34
Lamp - Dome G-2 3A Switch - ATCH 1Pump-2Pump Exchange D-4
A
Monitor F-1 6A Switch - ATCH Fine Swing Control D-3
15A
Motor - ATCH Lower Wiper I-2 2D Switch - ATCH Hammer Pressure I-1 3D
Motor - ATCH Lower Washer I-12 14 Switch - ATCH Lower Washer D-2 13A
Motor - Starter B-11 15 Switch - ATCH Lower Wiper D-2 14A
Motor - Washer I-12 16 Switch - ATCH Medium Line Pressure I-1 D
Motor - Wiper F-1
7A
Switch - ATCH Power Window D-2 A
Pump - ATCH Refueling A-3
17
Switch - ATCH Power Window Limit G-4 A
Radio - ATCH AM/FM (2) D-4
8A
Switch - ATCH Quick Coupler G-3 6B
Radio- ATCH AM D-4
8A
Switch - ATCH Refueling A-6 35
Relay - Cab Lamp H-10
7E
Switch - ATCH Refueling Stop (NC) A-5 36
Relay - ATCH Refueling Power A-4
18
Switch - ATCH Refueling Start (NO) A-5 37
Relay - ATCH Refueling Stop A-4
19
Switch - ATCH Seat Heater D-2 16A
Relay - ATCH Refueling Start A-4
20
Switch - ATCH Single-Double Action Exchange D-3 A
Relay - Boom Lamp H-10
8E
Switch - ATCH Start Aid D-3 20A
Relay - Chassis Lamp H-10
9E
Switch - ATCH Start Aid Coolant Temp B-12 38
Relay - Heater G-8
10E
Switch - ATCH Straight Pressure I-1 40
Relay - Horn H-10
11E
Switch - ATCH Under Window Limit F-1 17A
Relay - Main H-8
12E
Switch - Backup EPR Valve G-2 3B
Relay - Neutral Start G-10
13E
Switch - Backup Governor H-2 B
Relay - Start H-8
14E
Switch - Coolant Level I-12 39
Relay - Timer I-10
15E
Switch - Disconnect G-11 19E
Resistor - Alt H-8
16E
Switch - Engine Oil Level A-12 40
Resistor - Backup H-9
17E
Switch - Engine Oil Pressure B-12 41
Relay - Hydraulic Lock Solenoid G-10
18E
Switch - Horn I-3 2C
Sender - Hydraulic Oil Temp A-6
1F
Switch - Hydraulic Oil Filter A-6 19F
Sensor - A/C Photo F-1
9A
Switch - Hydraulic Oil Level B-6 20F
Sensor - AIH Coolant Temp C-12
21
Switch - Joystick Pressure I-2 5D
Sensor - ATCH Negative Control Pressure 1 A-11
2F
Switch - Key H-1 4B
Sensor - ATCH Negative Control Pressure 2 A-11
3F
Switch - Neutral Start Limit I-3 6D
Sensor - ATCH Tool Pressure D-11
1G
Switch - One Touch Low Idle H-1 5B
Sensor - ATCH Water Separator Level I-12
22
Switch - Throttle Position H-1 B
Sensor - Coolant Temp C-11
23
Switch - Travel Left Pressure I-2 7D
Sensor - Fuel Level B-6
24
Switch - Travel Right Pressure I-2 8D
Sensor - Pump Discharge Pressure 1 A-9
4F
Switch - Window Limit G-1 18A
Sensor - Pump Discharge Pressure 2 A-8
5F
Switch -ATCH Aux Hydraulic Pressure I-1 9D
Service Meter F-2
5A
Switch Panel E-1 12A
Socket - ATCH 12V 7A (2) F-4
10A
Timer - ATCH Lamp Delay I-7 D
Machine locations are repeated for components located close together. D = Behind platform.
A = Located inside of cab. E = Around relay panel.
B = Located inside of right console.
F = Inside of pump.
C = Located inside of left console.
G =
Around control valve.
Component Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-12 42
CONN 2 A-12 43
CONN 3 I-11 20E
CONN 4 G-9 21E
CONN 5 G-9 22E
CONN 6 G-9 23E
CONN 7 I-8 24E
CONN 8 G-7 25E
CONN 9 G-7 26E
CONN 10 G-7 27E
CONN 11 A-6 21F
CONN 12 D-6 28E
CONN 13 F-6 10D
CONN 14 I-6 11D
CONN 15 E-6,F-6 12D
CONN 16 A-5 35
CONN 17 A-5 44
CONN 18 A-5 45
CONN 19 B-4 46
CONN 20 B-4 47
CONN 21 C-4 7G
CONN 22 E-4 22A
CONN 23 E-4 22A
CONN 24 F-4 23A
CONN 25 I-3 13D
CONN 26 I-3 14D
CONN 27 H-3 15D
CONN 28 H-3 16D
CONN 29 H-3 17D
CONN 30 G-3 18D
CONN 31 C-3 48
CONN 32 C-2 49
CONN 33 F-1 24A
CONN 34 D-4,D-5 25A
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.
Connector Location
Form Number
Alternator: 9W-3043
SENR3685
Electric Starting Motor: 104-7040
Consist: 106-8557
SENR3859
Consist: 6V-5720
SENR3581
Cold Weather Applications: 6V-5821
SENR3581
Title
Related Electrical Service Manuals
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD
Battery +
A579 OR
Wiper Motor +
103 RD Monitor A580 BR
Wiper Motor -
105 RD
Key Switch
A581 GN
Wiper Motor Raise
109 RD
Alternator B+
A582 PU
Wiper Motor Stop
110 RD
Timer Relay B+
A583 YL
Power Window Interlock to Wiper Cont
112 PU
Main Power Relay Output
A584 BU
Front Window Limit Switch. to Wiper Cont
113 OR
Panel B+
A586 OR
Wiper Switch. to Wiper Cont
114 RD
Forward Horn
A588 GN
Safety Sol. Relay to Sol.
115 RD
Cab Lamp
A589 OR
Power Window Up
118 GY
Wiper/Washer
A590 BU
Power Window Down
120 YL
12V 7A Converter 1
A591 PU
Rear Window Limit Switch
123 WH
Seat Heater
C537 GN
A/C Photo Sensor + Sig
124 GN
A/C
C538 OR A/C Photo Sensor - Sig
129 BU
Cigar Lighter
C560 OR Left Rear Speaker
135 BU
Switched Converter Output
C566 PK Left Rear Speaker (Common)
147 PU
Beacon & Heated Seat
C569 YL Second DC/DC Converter Power Output
149 RD
Boom Lamp
E554 PK A/C Controller To AIC Compressor Clutch
150 OR
Quick Coupler
Lighting Circuits
151 GN
Neutral Start Limit Switch
607 PK
Flood Lamp - Front
152 BU
Lower Wiper/Washer
615 YL
Cab Flood Lights
154 RD
Neutral Start Limit Switch
616 BU
Boom Flood Lights
160 PU
Chassis Lamp
645 RD
Boom Lamp Relay
166 BR
Cab Fan
646 RD
Delay Timer Lamp Switch ATCH
168 RD
Refueling Lamp
684 RD
Cab Lamp Relay To Delay Timer ATCH
169 PK
Backup/Monitor Control
A623 BU
Right Cab Flood Lamp Switch To Relay
175 RD
A/C Blower
Control Circuits
179 BU
12V 7A Converter 2
763 BU
Torque Converter Switch
180 GN
Aux Circuit
780 PU
Coupler Disengage Solenoid
184 RD
E/P Control
788 YL
Engine Speed +
189 RD
Engine Governor Actuator
A718 PU
Start Aid Coolant Sensor Signal
191 WH
ATCH Power Window Control
A755 PK
Throttle Switch #1
Ground Circuits
A756 BU
Throttle Switch #2
200 BK
Main Chassis
A757 GY
Throttle Switch #3
201 BK
Opr Mon. Return
A758 BR
Throttle Switch #4
210 BK
Converter Output (24/12V)
A761 PU
Electronic Pump Control Throttle Ground
229 BK
Battery -
A762 PU
Electronic Pump Control Engine Speed Ground
235 BK
E/P Control Ground
A768 BU
Pump Control Valve #1 +
Basic Machine Circuits
A769 GY
Pump Control Valve #2 -
301 BU
Fuel On
A770 PK
Electronic Pump Control Bypass Switch to Resistor
304 WH
Start Relay Output
E742 GN
ATCH Joystick
306 GN
Starter Relay Coil to Neut Start Switch
F773 OR
Governor Acceleration
307 OR
Key Switch To Neut Start Switch
F774 WH
Governor Deceleration
308 YL
Main Power Relay Coil
M734 BR
Travel Mode Switch
309 GY
Alt Regulator Term.
M736 BU
Governor Command
310 PU
Start Aid Switch To Start Aid Solenoid
M737 WH
Front Flow Control Valve Solenoid
311 WH
Start Aid Sol to Temp Switch.
M738 OR
Rear Flow Control Valve Solenoid
320 RD
Horn Relay To Horn Switch
M739 YL
Solenoid Return 2
321 BR
Backup Alarm Lamp Travel Alarm
M740 PK
Travel Straight Solenoid
322 GY
Forward Horn
M741 GY
Travel Alarm Cancel
323 WH
Fuel Pump Power
M742 PU
AEC Model Switch
325 PK
Fuel Pump Relay Cut-Out
877 YL
Glow Plug Magnetic Switch To Glow Plug
326 RD
Engine Shutdown Solenoid To Key Switch
892 BR
CAT Data Link -
329 YL
Fuel Pump to Switch
893 GN
CAT Data Link +
365 YL
Fuel Pump Relay to Switch
F889 WH
Throttle Position Feedback
Monitoring Circuits
K843 GN
Stem 3 Extend Switch
403 GN
Alternator (R) Term
K844 GY
Stem 4 Extend Switch
405 GY
Opr. Mon. Oil Pressure (Low Setting)
K847 PU
Stem 3 Retract Switch
410 WH
Opr. Mon. Fault Alarm
K848 WH
Stem 4 Retract Switch
412 BU
Opr. Mon. Cool Flow
K849 YL
ATT Stem 1
430 BU
Opr. Mon. Air Filter
K850 BR
ATT Stem 2
487 OR
Hyd. Oil Flow Switch
K851 BU
ATT Stem 3
491 PK
Hyd. Oil Temp Sensor
K852 GN
ATT Stem 4
492 GY
Coolant Temp Sensor Signal
K853 GY
Pump 1 Flow Control Valve
495 GN
Fuel Level Signal
K854 OR
Pump 2 Flow Control Valve
496 WH
Opr. Mon. Panel Hyd. Oil Level
K855 PK
Separator Valve
A495 GY
Alternator (R) Term #2
K856 PU
Stem 1 Control Valve A
C468 BU
Engine Oil Level
K857 WH
Stem 2 Control Valve A
E469 YL
Stem 1 Pressure Sensor
K858 YL
Stem 3 Control Valve A
E470 BR
Negative Cont. Pressure Sensor 1
K859 BR
Stem 4 Control Valve A
E471 BU
Negative Cont. Pressure Sensor 2
K860 BU
Stem 1 Control Valve B
E472 GN
ATT 12V Sensor Supply
K861 GN
Stem 2 Control Valve B
E473 GY
Stem 1 Modulation
K862 GY
Stem 3 Control Valve B
E474 OR
Stem 2 Modulation
K863 OR
Stem 4 Control Valve B
E475 PK
Stem 3 Modulation
K864 PK
ATT Relief Valve 1
E476 PU
Stem 4 Modulation
K865 PU
ATT Relief Valve 2
H465 GN
Travel Alarm Cancel Indicator
K866 WH
ATT 1-Way/2-Way Control Valve
H466 BU
AEC Mode Indicator
K867 YL
ATT Solenoid Return 1
H467 WH
Travel Mode Indicator 1
K868 BR
ATT Solenoid Return 2
H473 BR
Travel Straight Pressure Switch
K869 BU
ATT Solenoid Return 3
H474 GN
Travel Right Pressure Switch
K870 GN
ATT Solenoid Return 4
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
K876 BR
ATT Relief Solenoid
501 GN
Wiper - Front (Low)
K877 BU
ATT Change Check Solenoid
506 PU
Washer - Front
K879 GN
Double Action Solenoid
508 PU
Radio Speaker - Left
998 BR
Digital Sensor Return
509 WH
Radio Speaker - Left (Common)
C987 RD
+Battery
511 BR
Radio Speaker - Right
G976 BU Water Separator Sensor
512 GN
Radio Speaker - Right (Common)
K904 GN Pump Discharge - Signal
530 OR
Washer - Right
K906 GN Swing Brake Sol - Signal
535 BU
Switch To Wiper Switch
K907 BU Swing Brake Sol - +B
575 YL
Wiper - Aux. (Park)
L968 OR E/P Control PS Valve -
576 PK
Wiper - Aux. (Low)
L969 WH E/P Control PS Valve +
578 BU
Washer - Aux.
L972 BU Low Idle Switch
586 BR
Aux. Hyd. - Close
L973 GN Fine Swing Control Relay to Sol Valve
590 GY
Wiper Switch. to Intermittent Module
L975 PK Start Aid Control Lamp 1 Output
592 BU
DC/DC Converter Power Output
L976 GN Excavator Fuel Pump Switch
A513 RD
ATCH Converter Memory
T967 YL Pump Discharge Mean Pressure
A537 PK
Seat Heater
Wire Description
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6449 ATCH Start Aid Coolant Temperature
38±3 C
(100.4±5.4 F)
27 C
(80.6 F)
Normally Closed
3E-6455 Engine Oil Pressure
90±21 kPa
(13.05±3.05 psi)
70±21 kPa
(10.15±3.05 psi)
(A-B) Normally Open
(A-C) Normally Closed
167-3466
Joystick Pressure
Travel Left Pressure
Travel Right Pressure
ATCH Straight Pressure
ATCH Hammer Pressure
ATCH Aux Hydraulic Pressure
ATCH Medium Line Pressure
490±49 kPa
(71.07±7.11 psi)
290 kPa MIN
(42.06 psi)
Multi Contact Position
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)
1
3E-6332 Solenoid: ATCH Start Aid 6
7Y-8242 Resistor: Alternator 47±4.7
102-8015 Resistor: Backup 41±2.05
107-7056 Solenoid: ATCH Fine Swing 34±0.05
111-9916 Solenoid:
ATCH Stem 4 Control (B)
ATCH Stem 3 Control (B)
ATCH Stem 2 Control (B)
ATCH Stem 1 Control (B)
ATCH Separate Valve
ATCH Stem 4 Control (A)
ATCH Stem 3 Control (A)
ATCH Stem 2 Control (A)
ATCH Stem 1 Control (A)
Power Shift Control
ATCH Quick Coupler (1)
11.7±2.2
121-1491 Solenoid:
Travel Straight
Swing Brake
Travel Speed
Hydraulic Lock
32±3.2
165-9549 Solenoid:
ATCH 1Pump-2Pump Exchange (1)
ATCH 1Pump-2Pump Exchange (2)
ATCH DBL Action
Latch 155±15.5
Unlatch 10.3±1.03
1
At room temperature unless otherwise noted.
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
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.
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.
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.
1
The FMI is a diagnostic code that indicates what type of failure has occurred.
1
2
3
4
5
6
7
8
9
10
11
12
17
18
19
21
22
23
24
AREA A
14
13
16
15
20
25
1
2
3
4
5
6
AREA B
1
2
AREA C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
AREA D
6
8
7
9
11
18
13
19
2
1
3
4
5
10
12
14
15
16
17
20
21
22
23
24
25
26
27
28
AREA E
1
2
3
4
5
6
7
8
9
17
19
20
13
16
12
11
10
18
15
14
AREA F
21
1
2
3
4
5
6
7
AREA G
CONN 8
CONN 9
CONN 10
CONN 11
CONN 12
CONN 13
CONN 14
CONN 14
CONN 15
CONN 16
ATCH
PRIMARY
NFC SOL
171-0114
ATCH PUMP 2
FLOW CONT SOL
171-0114
ATCH PUMP 1
FLOW CONT SOL
171-0114
ATCH NEGATIVE
CONT PRESS.
SENSOR 2
157-3182
ATCH NEGATIVE
CONT PRESS.
SENSOR 1
157-3182
K848-WH-18
K844-GY-18
K872-OR
K872-OR
K872-OR
200-BK-18
K872-OR
200-BK-18
200-BK-18
ATCH S ACTION
SOL2
165-9560
2
1
ATCH S ACTION
SOL1
165-9560
200-BK-14
(NOTE C)
GROUND
+B
SIGNAL
BK-18
BR-18
YL-18
235-BK-18
235-BK-18
235-BK-18
A584-BU-18
L43
L29
L37
L29
L37
L53
A623-BU-18
FUSE
5A 141-2759
10A 113-8490
15A 113-8491
30A 124-3548
FUSE BASE
183-1000
REFUELING PUMP
L44
L44
L37
L29
BR-18
L44
L44
L29
L37
L53
L29
L37
L53
L61
L65
ATCH VALVE
CONT.
177-7655
(NOTE G)
L57 L57
L54
L61
L62
L52 L52
L59
L62
L61
L65
L59
L59
L62
L59L58L58
2
1
C468-BU-18
235-BK-18
235-BK-18
L58
L58
L45
L36 L36
L42
L43
L44
L32L32
L44
L43
L42
L43
L42
200-BK-18
310-PU
L42
ALT RESISTOR
7Y-8242
DIODE
121-1022
MAIN RELAY
165-4026
200-BK
200-BK
306-GN
306-GN
306-GN
L43
L43
L42
L41
L32L32
L29
L53
L37 L37 L30
L29
L40
L39
L30
L57L57
L52
L41
L40
L28
L38
L41
L19
L40
L39
L37
L40
L39
L37
L53
L30
L29
L30
L29
L57L57
L54
L52
YL-18
L40
L28
L38 L38
L19
L39
L54
L52
L37
L38
L26
309-GY
L41
L40
L28
L38
L19
L38
L37
L38
L37
L25
L46
L46
L35
L34
L35
L34
L33
L17
L18
200-BK-14
200-BK-14
200-BK-14
200-BK
200-BK
200-BK
L50
L49
L49
L50
L24
L49
L50
L15
L50
L15
L15
L50
L49 L23 L23 L13
L14
L13
309-GY
309-GY
L32
L50
L49
L56
BK-18
SIGNAL
L22
L23
L24
L24
L21
L24
L32
L31 L31
L22
L23
L14 L14
L16
L31
L48
L55
L20
A770-PK-18
150-OR-18
105-RD
L56
L21
L14
L16
L22
L23
L48
L55
L55
L20L20
L20
L24
L55
L48
L8
L23
L22
L21
L52
L29
L30
L53
L53
L28
L28
+B
L14
L23
L22
L16
L26 L26
L52
L54
L52
L30
L25
L25
L3
L9
2
1
L19
L47
L1
L1
L18
GROUND
L49
L15
L14
L13
L14
L14
L50
L50 L12
L16
L11
L10
200-BK
L10
L11
L10
L12
L6
L6 L6
L6
L4
L5
L5
L48L48
L8
L8
L3
L7
CAB
L7
L9
L9
L8
L3
L3
L48
L48
L2
L2 L2
L4
ATCH HEATER
SW PANEL
176-2005
L64
L1
L64
A588-GN
189-RD
607-PK
A718-PU-18
309-GY
304-WH-8
877-YL-4
168-RD-10
109-RD-6
101-RD-4
A588-GN
189-RD
607-PK
A718-PU-18
309-GY
147-PU
147-PU147-PU147-PU
304-WH-8
877-YL-4
168-RD-10
326-RD
K906-GN-18
A768-BU-18
A769-GY-18
F774-WH-18
F773-OR-18
E554-PK-18
311-WH-18
147-PU
235-BK-14
F774-WH-18
F773-OR-18
E554-PK-18
326-RD
K906-GN-18
A768-BU-18
A769-GY-18
487-OR-18
496-WH-18
405-GY-18
C468-BU-18
M736-BU-18
403-GN-18
763-BU-18
788-YL-18
A762-PU-18
492-GY-18
A761-PU-18
M740-PK-18
M737-WH-18
M738-OR-18
321-BR-18
M736-BU-18
189-RD
A761-PU-18
F773-OR-18
F774-WH-18
E554-PK-18
326-RD
405-GY-18
788-YL-18
A762-PU-18
235-BK
877-YL-4
A718-PU-18
492-GY-18
109-RD-6
403-GN-18
311-WH-18
304-WH-8
101-RD-4
607-PK
168-RD-10
321-BR-18
495-GN-18
496-WH-18
487-OR-18
491-PK-18
M739-YL-18
M738-OR-18
M737-WH-18
K904-GN-18
A769-GY-18
A768-BU-18
M739-YL-18
495-GN-18
K904-GN-18
491-PK-18
T967-YL-18
M740-PK-18
C468-BU-18
763-BU-18
A588-GN
K906-GN-18
235-BK-14
L973-GN
780-PU-18
322-GY
616-BU
616-BU
322-GY
235-BK-18
780-PU-18
235-BK-14
L973-GN
ATCH RELIEF
CHECK SOL2
165-9560
K867-YL-18
K854-OR-18
K853-GY-18
E471-BU-18
E470-BR-18
308-YL
M739-YL-18
L10
200-BK
E469-YL-18
K868-BR-18
K856-PU-18
K857-WH-18
K869-BU-18
K858-YL-18
K859-BR-18
K863-OR-18
K862-GY-18
K861-GN-18
K860-BU-18
K855-PK-18
K867-YL-18
ATCH SEPARATE
VALVE SOL
111-9916
ATCH STEM 3
CONT SOL(A)
111-9916
ATCH STEM 2
CONT SOL(A)
111-9916
ATCH STEM 1
CONT SOL(A)
111-9916
ATCH STEM 1
CONT SOL(B)
111-9916
ATCH STEM 2
CONT SOL(B)
111-9916
235-BK-18
308-YL
E469-YL-18
K868-BR-18
K856-PU-18
K857-WH-18
K868-BR-18
K868-BR-18
K868-BR-18
K868-BR-18
1
2
2
11
2
K868-BR-18
2
1
K868-BR-18
K868-BR-18
K869-BU-18
K869-BU-18
K861-GN-18
K860-BU-18
2
1
K862-GY-18
K863-OR-18
ATCH STEM 3
CONT SOL(B)
111-9916
K869-BU-18
K869-BU-18
1
2
2
1
K867-YL-18
1
2
2
1
K869-BU-18
K869-BU-18
K869-BU-18
K869-BU-18
K859-BR-18
K858-YL-18
A
B
C
GROUND
+B
SIGNAL
ATCH TOOLE
PRESS.
SENSOR
000-0000
BK-18
YL-18
BR-18
K855-PK-18
K855-PK-18
K860-BU-18
K858-YL-18
K863-OR-18
K857-WH-18
K862-GY-18
E469-YL-18
K856-PU-18
K861-GN-18
K859-BR-18
K868-BR-18
K869-BU-18
ATCH STEM 4
CONT SOL(B)
111-9916
K867-YL-18
K867-YL-18
E470-BR-18
E471-BU-18
K853-GY-18
K854-OR-18
L59
K866-WH-18
L60
K864-PK-18
L65
K865-PU-18
L61
308-YL
C987-RD-14
151-GN
E472-GN-18
E475-PK-18
E476-PU-18
E473-GY-18
E474-OR-18
K848-WH-18
K844-GY-18
L62
K847-PU-18
K843-GN-18
K870-GN-18
235-BK-18
235-BK-18
ATCH STEM 4
CONT SOL(A)
111-9916
E474-OR-18
E473-GY-18
E476-PU-18
E475-PK-18
E472-GN-18
M739-YL-18
892-BR-18
RLF CHK V1
1WAY/2WAY CONT SOL
893-GN-18
PUMP2 F1 F CONT PRV
PUMP1 F1 F CONT PRV
NEG CONT PRESS SNSR2
NEG CONT PRESS SNSR1
K850-BR-18
PRV RETURN(1)
K851-BU-18
SOL GND3
SOL GND2
ATCH STEM4 CONT PRV(A)
ATCH STEM2 CONT PRV(B)
MASK ENABLE
RS232 GND
ATCH STEM1 CONT PRV(A)
TOOL PRESS SNSR
OPTION SW (1)
OPTION SW (2)
ATCH STEM3 CONT PRV(B)
ATCH STEM2 CONT PRV(A)
RS232 TX
RS232 RX
ATCH STEM4 CONT PRV(B)
ATCH STEM3 CONT PRV(A)
OPTION SW (3)
ATCH STEM1 CONT PRV(B)
SEPARATE VALVE PRV
SNSR GND
RS422 TX-
RS422 TX+
RS422 RX-
K867-YL-18
RS422 RX+
GND
K867-YL-18
GND
CDL(-)
CDL(+)
LEFT JOYSTICK SW (2)
LEFT JOYSTICK SW (1)
ATCH TOOL SW (4)
ATCH TOOL SW (3)
RIGHT JOYSTICK SW (2)
RIGHT JOYSTICK SW (1)
ATCH TOOL SW (2)
K867-YL-18
ATCH TOOL SW (1)
K852-GN-18
KEY SW
INTER LOCK
51
50
49
48
47
46
45
40
39
38
37
M739-YL-18
30
29
27
18
17
8
26
7
35
L65
L65
L60
6
16
5
54
44
34
31
25
M737-WH-18
4
5
6
11
15
17
20
27
21
24
31
32
235-BK-18
K849-YL-18
235-BK-18 235-BK-18
36
K849-YL-18
K852-GN-18
K851-BU-18
K850-BR-18 ATCH STEM2
ATCH STEM3
ATCH STEM4
41
28
42
ATCH STEM1
12V SPLY
ATCH STEM3 MODULATION
ATCH STEM4 MODULATION
ATCH STEM1 MODULATION
ATCH STEM2 MODULATION
SOL GND4
ATCH2 RLF PRV
ATCH1 RLF PRV
RLF CHK V2
52
32
24
15
3
14
2
43
33
22
21
20
19
12
11
10
9
4
23
53
13
1+B
34
42
43
44
49
50
51
52
8
40
39
30
29
12
2
1
2
4
1
3
1
2
235-BK-18
235-BK-14
988-BR-18
235-BK-14
16
7
9
10
18
19
35
25
28
53
48
38
45
47
1
2
3
22
41
26
36
37
46
54
13
14
23
33
892-BR-18
893-GN-18
K848-WH-18
K844-GY-18
K847-PU-18
K843-GN-18
NOTE H: USE WITH JAPAN.
308-YL
308-YL308-YL
151-GN151-GN
C987-RD-14C987-RD-14
C987-RD-14
CHASSIS
+B
BK-00
BK-00
DISCONNECT SW.
7N-0718
7N-0719(NOTE F)
GROUND STRAP
167-3583
235-BK-18
K851-BU-18
K851-BU-18
K852-GN-18
K852-GN-18
K849-YL-18
K849-YL-18
ATCH
MEDIUM LINE
PRESS SW
167-3466
1
2
1
2
1
2
1
2
586-BR
235-BK-18
K906-GN-18
K906-GN-18
A588-GN
A588-GN
763-BU-18
763-BU-18
C468-BU-18
M740-PK-18
M740-PK-18
235-BK
235-BK-18
235-BK-18
K877-BU-18
235-BK-18
235-BK-18235-BK-18
235-BK-18
200-BK-18
C468-BU-18
101-RD-4
101-RD-4
304-WH-8
304-WH-8
311-WH-18
311-WH-18
403-GN-18
403-GN-18
109-RD-6
109-RD-6
L36
L35
492-GY-18
492-GY-18
A718-PU-18
A718-PU-18
877-YL-4
877-YL-4
K870-GN-18
235-BK-18
K866-WH-18
K865-PU-18
235-BK-18
K854-OR-18
K854-OR-18
K853-GY-18
K853-GY-18
K867-YL-18
K867-YL-18
K867-YL-18
K867-YL-18
K867-YL-18
E471-BU-18
E471-BU-18
E470-BR-18
E470-BR-18
308-YL
308-YL
308-YL
308-YL
308-YL
L34
235-BK-18
235-BK-18
235-BK-18
235-BK-18
L60
1
2
L47
M738-OR-18
C
B
A
M737-WH-18
M739-YL-18
235-BK-18
235-BK-18 235-BK-18
2
1
C
B
A
235-BK
K870-GN-18
L51
K870-GN-18
877-YL-4
200-BK-18
200-BK-18
L51
L51
235-BK-18
235-BK-18
235-BK-14
235-BK-14
235-BK-14
235-BK-18
L51
K872-OR
200-BK-18
K866-WH-18
L63
K865-PU-18
K870-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
ATCH 1WAY/2WAY
CONT SOL
165-9560
ATCH RELIEF
CHECK SOL1
165-9560
ATCH
RELIEF SOL2
165-9560
ATCH
RELIEF SOL1
112-0090
K870-GN-18
1
2
K864-PK-18
2
1
K872-OR
2
1
2
1
235-BK-18
235-BK-18
235-BK-18
2
1
NOTE G: USE WITH OUTSIDE JAPAN.
CHASSIS
ATCH
FINE SWING SOL
107-7056
2
1
200-BK
322-GY
780-PU-18
616-BU
200-BK
200-BK
200-BK
L9
L7 L7
L2
L20
L21
L21
L20
L47
L19
1
2
496-WH-18
L51
322-GY
780-PU-18
616-BU
1
2
K879-GN
K879-GN
L47
A
B
C
K872-OR
K879-GN
K871-WH
235-BK-18
2
1
ATCH DBL ACTION
SOL
165-9549
109-RD-6
101-RD-4
235-BK-14
235-BK-18
L51
506-PU-18
578-BU
310-PU
184-RD
L51 L51
147-PU
147-PU
147-PU
147-PU
147-PU
147-PU
ATCH BATTERY
3T-5760
(NOTE F)
BATTERY
3T-5760
ATCH WTR
SEPARATOR
LEVEL SNSR
178-2345
WASHER
7T-8890
AIR CLEANER SW
154-0498
200-BK
200-BK
311-WH-18
235-BK-18
412-BU-18
G976-BU-18
430-BU-18
506-PU-18
578-BU
310-PU
A583-YL-18
L64 L64
311-WH-18
412-BU-18
578-BU
200-BK
506-PU-18
430-BU-18
147-PU
G976-BU-18
578-BU
430-BU-18
G976-BU-18
147-PU
506-PU-18
200-BK-18
200-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
ATCH LOWER WASHER
7T-8890
ATCH START
AID SOL
3E-6332
(NOTE F)
COOL LEVLE SW
096-0744
235-BK-14
184-RD
L975-PK-18
892-BR-18
893-GN-18
320-RD-18
200-BK-18
200-BK-18
310-PU
684-RD-18
60A
ALT BREAKER
9S-0174
101-RD-6
101-RD-6
OPTION PWM IN(1)
+12V SPLY
O.L.W.D PRESS SNSR
ANLG SNSR RETURN
OPTION V SW(1)
HEATER RLY/STARTER RLY
SNSR RETURN
PRV RETURN(4)
FAN MOT CONT PRV
PRV RETURN(3)
OPTION CONT PRV(2)
OPTION CONT PRV(1)
PUMP DISCH (2) PRESS SNSR
HYD OIL TEMP SNSR
PUMP DISCH (1) PRESS SNSR
FUEL LEVEL
PRV RETURN(2)
TRAVEL ALM
PRIM NFC PRESS PRV
FLOW LIMIT PRESS PRV
TRAVEL STR SOL
GOV FDBK
COOL TEMP SNSR
SP SNSR(+)
T967-YL-18
491-PK-18
K904-GN-18
495-GN-18
M739-YL-18
321-BR-18
M738-OR-18
A761-PU-18
492-GY-18
A762-PU-18
788-YL-18
763-BU-18
FREE SWING
BKUP SW
GOV COMMAND
ALT R TERM
403-GN-18
M736-BU-18
K907-BU-18
L969-WH-18
L968-OR-18
H466-BU-18
H465-GN-18
H467-WH-18
410-WH-18
L973-GN
L973-GN
SP SNSR(-)
M736-BU-18
403-GN-18
403-GN-18
403-GN-18403-GN-18
403-GN-18
M736-BU-18
M736-BU-18M736-BU-18
M736-BU-18
M736-BU-18
M736-BU-18
L973-GNL973-GN
L973-GN
TRAVEL SP CHG SOL
FAULT ALM
TRAVEL MODE IND
TRAVEL ALM CANCEL IND
AEC MODE IND
PRV RETURN(1)
PS CONT PRV
SWING BK CANCEL SOL
410-WH-18
H467-WH-18
H465-GN-18
H466-BU-18
L968-OR-18
L969-WH-18
K907-BU-18
27
38
53
42
41
322-GY
32
51
K876-BR-18
50
49
OPTION SW (4)
GROUND
STRAP
128-8886
43
33
34
48
54
46
31
28
52
5
12
11
26
18
45
39
30
20
3
21
10
22
40
37
13
9
8
1
36
29
25
16
SW RETURN
CREEPER TRAVEL FUNCTION SW
OVER LOAD ALM CANCEL SW
OPTION SW
OPTION SW
AUTO LUB FAILURE
SPL FLTR PLUGGED
F SEC FLTR PLUGGED
F PRIM FLTR PLUGGED
49
6
44
34
35
15
3
25
24
17
16
37
36
27
26
7
8
5
52
51
HYD. OIL LEVEL SW 496-WH-18
ENG OIL PRESS SW
ENG OIL LEVEL SW
41 405-GY-18
M737-WH-18
C468-BU-18
M740-PK-18
235-BK
235-BK
23KEY SW ON
GND
GND
ACL PLUGGED
WTR SEPARATOR LEVEL SW
CAPSULE FLTR PLUGGED
COOL. LEVEL SW
184-RD
308-YL
235-BK
235-BK
31
42
47
430-BU-18
G976-BU-18
487-OR-18
412-BU-18
308-YL
200-BK
1
2
1
2
6
4
3
5
L975-PK-18
K852-GN-18
K852-GN-18
K852-GN-18
K851-BU-18
K851-BU-18
K851-BU-18
K849-YL-18
K849-YL-18
K849-YL-18
893-GN-18
893-GN-18
893-GN-18
893-GN-18
893-GN-18 893-GN-18
893-GN-18
893-GN-18
892-BR-18
892-BR-18
892-BR-18
892-BR-18
892-BR-18
892-BR-18
892-BR-18
892-BR-18
235-BK-14
235-BK-14
235-BK-14
308-YL
K850-BR-18
AIR HEATER CONTROLLER
+B
+B
L975-PK-18
184-RD
184-RD
ATCH STEM 2 SWING CANCEL
CAT DATA LINK(-)
CAT DATA LINK(+)
K850-BR-18
892-BR-18
893-GN-18
H473-BR-18TRAVEL STR PRESS SW 53
ATCH STEM 1 SWING CANCEL
ATCH STEM 3 SWING CANCEL
ATCH STEM 4 SWING CANCEL
K849-YL-18
K851-BU-18
184-RD
K852-GN-18
184-RD
184-RD
JOYSTICK PRESS SW
TRAVEL LEFT PRESS SW
TRAVEL RIGHT PRESS SW
ONE TOUCH LO IDEL SW
THRT POS 1
THRT POS 2
THRT POS 3
THRT POS 4
TRAVEL ALM CANCEL SW
AEC MODE SW
TRAVEL MODE SW
H476-WH-18
H475-BU-18
H474-GN-18
L972-BU-18
A755-PK-18
A768-BU-18
A756-BU-18
A757-GY-18
A758-BR-18
A769-GY-18
M741-GY-18
M742-PU-18
M734-BR-18
K904-GN-18
T967-YL-18
M737-WH-18
M738-OR-18
M739-YL-18
491-PK-18
487-OR-18
2
6
47
44
35
496-WH-18
23
15
24
14
19
7
4
BK
WH
495-GN-18
321-BR-18
200-BK-4
K876-BR-18
168-RD-10
38
32
607-PK
40
50
54
14
4
2
48
13
496-WH-18
18
1
K864-PK-18
235-BK-18
K870-GN-18
101-RD-4
304-WH-8
311-WH-18
403-GN-18
492-GY-18
A718-PU-18
877-YL-4
A762-PU-18
788-YL-18
405-GY-18
F774-WH-18
F773-OR-18
A761-PU-18
C468-BU-18
495-GN-18
43
200-BK-4
321-BR-18
200-BK-6
168-RD-10
200-BK-4
A718-PU-18
200-BK-18
33
28
45
46
29
30
39
11
9
10
19
20
22
12
21
K852-GN-18
K851-BU-18
K849-YL-18
492-GY-18
H476-WH-18
H475-BU-18
H474-GN-18
L972-BU-18
A755-PK-18
1
2
A756-BU-18
A757-GY-18
A758-BR-18
K907-BU-18
L969-WH-18
L968-OR-18
+B
H466-BU-18
H465-GN-18
M741-GY-18
M742-PU-18
M734-BR-18
H467-WH-18
410-WH-18
H473-BR-18
(NOTE C)
SIGNAL
GROUND
A
B
AC
B
C
M739-YL-18
GROUND
E476-PU-18
E474-OR-18
E473-GY-18
K843-GN-18
K847-PU-18
235-BK-18
E472-GN-18
103-RD
JJ 170-6828 H-1
329-YL-18
K872-OR
K844-GY-18
K848-WH-18
E475-PK-18
+B
SIGNAL
1
2
235-BK-18
2
1
PUMP DISCHARGE
PRESS SENSOR2
157-3182
PUMP DISCHARGE
PRESS SENSOR1
157-3182
ENG/PUMP CONT
177-7654
ATCH
FLOW LIMIT
SOL
171-0188
POWER SHIFT
CONT SOL
111-9916
235-BK-18
235-BK-18
323-WH-10
E476-PU-18
135-BU
K847-PU-18
K843-GN-18
E473-GY-18
325-PK-18
607-PK
E474-OR-18
E472-GN-18
E472-GN-18
E472-GN-18 E472-GN-18
210-BK
E472-GN-18
K866-WH-18
235-BK-18
K877-BU-18
K877-BU-18
147-PU
K865-PU-18
K870-GN-18
K870-GN-18
K870-GN-18
K870-GN-18
235-BK-18
K864-PK-18
K876-BR-18
K876-BR-18
235-BK 235-BK-18
235-BK-14
K864-PK-18
235-BK-14
L60
200-BK
L60
535-BU
E472-GN-18
308-YL
235-BK-18
WW 170-6959 I-3 (NOTE G)
L51
L47
535-BU-18
147-PU
403-GN-18
T967-YL-18
235-BK-18
235-BK-18 235-BK-18
200-BK-18
K848-WH-18
K844-GY-18
6
2
1E472-GN-18
5
3
4
4
3
5
235-BK-18
E475-PK-18
E472-GN-18 1
2
607-PK
E554-PK-14
175-RD-14
C569-YL
124-GN-14
200-BK-14
200-BK-14
200-BK-6
2
6
1
5
3
4
487-OR-18
200-BK-6
405-GY-18
B
B
BR
788-YL-18
A762-PU-18
G
R/L
R
491-PK-18
304-WH-8
RD-00
ATCH
HEATER UNIT
164-0490
A/C UNIT
161-3779
E554-PK-18
200-BK-14
E554-PK-18
K879-GN
RD-00
K872-OR
K871-WH
403-GN-18
506-PU-18
578-BU
310-PU
892-BR-18
893-GN-18
410-WH-18
H467-WH-18
M734-BR-18
M742-PU-18
M741-GY-18
H465-GN-18
535-BU-18
H466-BU-18
K849-YL-18
780-PU-18
326-RD
K906-GN-18
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
K907-BU-18
M736-BU-18
F774-WH-18
F773-OR-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
L972-BU-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
H474-GN-18
H475-BU-18
H476-WH-18
K852-GN-18
H473-BR-18
39
L47
309-GY
38
37
306-GN
306-GN
54
27
26
25
28
52
50
51
53
40
41
49
21
17
16
15
19
20
33
29
30
42
43
44
48
47
46
8
9
10
14
13
12
200-BK-10
11
7
306-GN
306-GN
36
35
KEY SW.(ON)
HEATER
CONT UNIT
104-3204
REGULATOR
GND
TEMP.
CHECK TERM.
INDICATOR
RELAY
KEY SW.(START)
32
3
2
23
24
34
4
6
M739-YL-18
5
200-BK-18
301-BU-10
200-BK-18
31
45
1
301-BU-10
405-GY-18
M738-OR-18
788-YL-18
A762-PU-18
235-BK-18
235-BK-18
306-GN 17
607-PK
175-RD-14
175-RD-14
124-GN-14
124-GN-14
607-PK
607-PK
607-PK
607-PK
308-YL
308-YL308-YL
147-PU
645-RD-18
103-RD
152-BU
129-BU
113-OR-18
646-RD-18
118-GY
615-YL
123-WH-18
191-WH-14
A588-GN
150-OR-18
105-RD
307-OR
A770-PK-18
169-PK-18
169-PK-18169-PK-18
189-RD
151-GN
154-RD
320-RD-18
120-YL
179-BU
K851-BU-18
L973-GN
K879-GN
K872-OR
K871-WH
403-GN-18
506-PU-18
235-BK-18
645-RD-18
578-BU
2
1
310-PU
892-BR-18
893-GN-18
410-WH-18
H467-WH-18
M734-BR-18
M742-PU-18
M741-GY-18
H465-GN-18
H466-BU-18
496-WH-18
229-BK
147-PU
L973-GN
L973-GN
103-RD
152-BU
129-BU
113-OR-18
646-RD-18
101-RD-4
118-GY
615-YL
123-WH-18
191-WH-14
A588-GN
607-PK
169-PK-18
229-BK
307-OR
575-YL-18
A537-PK-18
200-BK-14 200-BK-14
200-BK-14
607-PK
307-OR
307-OR
307-OR
307-OR
780-PU-18
C569-YL
575-YL-18
535-BU
576-PK-18
200-BK-18
200-BK-18
200-BK-18200-BK
235-BK-18
535-BU
ATCH
TRAVEL ALARM
3E-7738
1
2
576-PK-18
2
578-BU
535-BU
152-BU
892-BR-18
893-GN-18
645-RD-18
506-PU-18
403-GN-18
129-BU
410-WH-18
103-RD
103-RD
235-BK-18
103-RD
235-BK-18
169-PK-18
A537-PK-18
L973-GN
118-GY
H466-BU-18
H465-GN-18
M741-GY-18
M742-PU-18
M734-BR-18
646-RD-18
H467-WH-18
113-OR-18
607-PK
607-PK
607-PK-18
607-PK-18
607-PK
576-PK-18
123-WH-18
310-PU
307-OR
K879-GN
K872-OR
K871-WH
147-PU
200-BK-14
200-BK-14
191-WH-14
191-WH-14
A589-OR-14
607-PK-18
147-PU147-PU
586-BR
A584-BU-18
(NOTE C)
607-PK607-PK
200-BK
511-BR-18
512-GN-18
A583-YL-18
A590-BU-14
A589-OR-14
A584-BU-18
191-WH-14
A588-GN
615-YL 615-YL
615-YL
200-BK
200-BK-14
200-BK-14
200-BK-18
200-BK
200-BK-18
235-BK-18
235-BK-18
L17
A584-BU-18
200-BK-18
200-BK
200-BK
615-YL
615-YL
191-WH-14
A588-GN
135-BU-14
5
8
10
4
7
3
1
9
2
6
210-BK-14
229-BK-14
C569-YL-14
586-BR
200-BK-18
C560-OR-18
C566-PK-18
586-BR
576-PK-18
191-WH-14
123-WH-18
310-PU
307-OR
K879-GN
K872-OR
K871-WH
A537-PK-18
147-PU
147-PU
147-PU
147-PU
A590-BU-14
147-PU
575-YL-18
152-BU
103-RD
892-BR-18
893-GN-18
578-BU
535-BU 535-BU
535-BU
C538-OR-18
C537-GN-18
W 167-3527 D-5
998-BR-18
607-PK-18
607-PK-18
K871-WH
147-PU
200-BK-18
200-BK-18
K872-OR
K879-GN
A590-BU-14
147-PU
147-PU
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
ATCH START
AID SW
183-1007
(NOTE F)
CAB
CAB
CAB
OPERATOR STATION
K872-OR
ATCH
12V 7A SOCKET
121-0987 (NOTE E)
CAB
A537-PK-18
123-WH-18
191-WH-14
578-BU
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
535-BU-18
535-BU-18
607-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
575-YL-18
200-BK-18
200-BK-18
576-PK-18
200-BK
201-BK-18201-BK-18
200-BK-18
200-BK-18
113-OR-18
H467-WH-18
646-RD-18
M734-BR-18
M742-PU-18
M741-GY-18
H465-GN-18
TRAVEL MODE IND 2
A583-YL-18
A584-BU-18
200-BK-18
645-RD-18
506-PU-18
403-GN-18
129-BU
410-WH-18
200-BK-14
200-BK
200-BK
200-BK
200-BK
200-BK-18
200-BK
200-BK-18
200-BK-18
403-GN-18
129-BU
118-GY
410-WH-18
410-WH-18
A586-OR-18
590-GY-18
501-GN-18
530-OR-18
530-OR-18
501-GN-18
590-GY-18
607-PK
235-BK-18
A582-PU
A581-GN
A580-BR
A579-OR
200-BK-18
403-GN-18
129-BU
200-BK
L973-GN
200-BK
A582-PU
A581-GN
A580-BR
A579-OR
C537-GN-18
C538-OR-18
7
12
5
4
6
535-BU
9
11
8
3
1
10
152-BU
103-RD
A584-BU-18
535-BU
152-BU
103-RD
START RELAY
892-BR-18
A584-BU-18
893-GN-18
169-PK-18229-BK-14
575-YL-18
113-OR-18
113-OR-18
CAB
200-BK
615-YL
306-GN
18
169-PK-18
6
3
18
615-YL
17
7
365-YL-18
15
16
12
8
10
TT 163-6758 I-8
1
5
14
4
11
1
2
9
2
11
9
13
18
15
7
6
8
4
5
12
20
21
14
16
3
19
17
10
L973-GN
RELAY
LAMP SW
KEY OFF
GND
+B
ATCH LAMP
DELAY TIMER
163-6704
235-BK-18
13
308-YL
A537-PK-18
326-RD
F774-WH-18
F773-OR-18
235-BK-18
169-PK-18
998-BR-18
C
A
K906-GN-18
B
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
K907-BU-18
M736-BU-18
Y 167-3473 I-6 (NOTE E)
Z 163-6810 F-1
KK 183-1010 G-8
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
L972-BU-18
307-OR
105-RD
150-OR-18
A770-PK-18
235-BK-18
P 170-9296 F-6
506-PU-18
645-RD-18
329-YL-18
168-RD-18
168-RD-18
780-PU-18
150-OR-18
105-RD
307-OR
326-RD
308-YL
168-RD-18
168-RD-18
K906-GN-18
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
A770-PK-18
K907-BU-18
A537-PK-18
A537-PK-18
M736-BU-18
169-PK-18
495-GN-18
F774-WH-18
365-YL-18
F773-OR-18
235-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
L972-BU-18
607-PK
K847-PU-18
K843-GN-18
E473-GY-18
E472-GN-18
200-BK-18
200-BK-18
200-BK-18
2
1
10
7
12
4
3
9
8
11
6
5
M737-WH-18
235-BK-18
235-BK-18
235-BK-18
11
8
5
1
2
3
325-PK-18
1
2
3
2
780-PU-18
L33
235-BK-18
105-RD
4
307-OR
326-RD
892-BR-18
893-GN-18
BK
YL
9
235-BK-18
10
6
7
HYD OIL
FILTER SW
173-3518
GROUND
SIGNAL
1
1
2
12
4
CONSOLE(RH)
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
163-6700
ATCH
REFUELING SW
5C-6108
2
1
HYD OIL
LEVEL SW
170-9376
309-GY
T°
Y/G
Y/W
ATCH JOYSTICK
000-0000
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
308-YL
K906-GN-18
200-BK-18
L972-BU-18
607-PK
607-PK
+12V
GND
PWM+
SWITCH 1
SWITCH 2
COMMON
3
1
5
6
4
2
E472-GN-18
E473-GY-18
K843-GN-18
K847-PU-18
320-RD-18
329-YL-18
235-BK-18
E474-OR-18
E742-GN-18
CONSOLE(LH)
320-RD-18
200-BK-18
ATCH
JOYSTICK
000-0000
235-BK-18
2
1
4
6
189-RD
6
5
E554-PK-18
235-BK-18
235-BK-18
3 235-BK-18
235-BK-18
M736-BU-18
K848-WH-18
K844-GY-18
E474-OR-18
E472-GN-18
ATCH
REFUELING
POWER RELAY
165-4026
DIODE
121-1022
7
8
9
10
11
12
6
4
5
2
3
1
235-BK-18
235-BK-18
ATCH 12V 7A
CONVERTER
167-3467
200-BK
179-BU
179-BU
229-BKGND
12V MEMORY
GND
24V IN
24V MEMORY
12V OUT
2
1
200-BK
120-YL
135-BU
6
2
120-YL
3
4
6
210-BK
4
5
5
1
3
179-BU
179-BU179-BU
COMMON
ATCH 12V 7A
CONVERTER
167-3467
GND
12V MEMORY
GND
24V IN
24V MEMORY
12V OUT
1
6
2
3
4
5
C569-YL
210-BK
200-BK
SWITCH 2
SWITCH 1
PWM+
586-BR
H473-BR-18
H473-BR-18235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
H474-GN-18
235-BK-18
H475-BU-18
H476-WH-18
L973-GN
179-BU
120-YL
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
189-RD
GND
151-GN
H466-BU-18
ATCH
STRAGHT
PRESS.SW
167-3466
H476-WH-18
H475-BU-18
154-RD
235-BK-18
200-BK-18
200-BK-18
T967-YL-18
147-PU
200-BK-18
NOTE F: USE WITH COLD WEATHER.
200-BK-18
200-BK-18
200-BK-18
H474-GN-18
M736-BU-18
235-BK-18
L973-GN
235-BK-18 235-BK-18
147-PU
235-BK-18
K904-GN-18
235-BK-18
T967-YL-18
487-OR-18
491-PK-18
PLATFORM
CHASSIS
GROUND STRAP
7G-1060
487-OR-18
A769-GY-18
A768-BU-18
235-BK-18
M737-WH-18M738-OR-18
A
C
B
607-PK
200-BK-18
168-RD-10
321-BR-18
321-BR-18
ATCH QUICK
COUPLER SOL2
111-9962
ATCH QUICK
COUPLER SOL1
111-9961
200-BK
118-GY
200-BK
169-PK-18
200-BK-14
A591-PU-18
200-BK
200-BK
200-BK
200-BK
200-BK-18
200-BK-18
200-BK-18
169-PK-18
495-GN-18
A591-PU-18
200-BK-18
200-BK-18
780-PU-18
168-RD-10
235-BK-18
325-PK-18
FOR O/S JAPAN FOR JAPAN
N 193-3381 B-2
168-RD-10
ATCH
CONVERTER
134-1346
TO RADIO
A513-RD-18
F 163-6766 H-1 (NOTE H)
200-BK-10
592-BU-18
A513-RD-18
113-OR-18
103-RD
592-BU-18
GND
MEM
12V
IGN
24V
200-BK-18
200-BK-18
200-BK-18
7
2
8
4
1
5
511-BR-18
NOTE C: NOT USE ON THIS VEHICLE.
PP 170-9478 H-11
509-WH-18
508-PU-18
512-GN-18
511-BR-18
ATCH POWER
WINDOW LIMIT SW
117-6306 (NOTE B)
ATCH POWER
WINDOW CONT
117-6305
(NOTE B)
R. LIMIT
GND
NEUTRAL
+B
WIPER
SW. DOWN
SW. UP
F. LIMIT
200-BK-18
511-BR-18
ATCH
AM/FM RADIO
(CASSETTE)
163-6709
508-PU-18
512-GN-18
509-WH-18
113-OR-18
103-RD
ATCH SPEAKER (L)
7Y-5505
ATCH SPEAKER (R)
7Y-5505
DOME LAMP
176-1986
C569-YL-14
322-GY
C468-BU-18
235-BK
326-RD
508-PU-18
512-GN-18
309-GY
235-BK-18
322-GY
509-WH-18
322-GY
210-BK-14
135-BU-14
200-BK-10
607-PK
3
SPEAKER (-)
AUX-SPEAKER(-)
SPEAKER (+)
SPEAKER (-)
BACKUP
ILLUMI
AUX-SPEAKER(+)
ACC 113-OR-18
103-RD
6
2
9
1
200-BK-18
3
7
4
10
GND
8
5
SPEAKER (+)
ATCH
AM RADIO
163-6706
ATCH
AM/FM RADIO
163-6707
ATCH
12V 7A SOCKET
121-0987
6
109-RD-6
326-RD
311-WH-18
109-RD-6
326-RD
ATCH START AID
COOLANT TEMP SW.
3E-6449
(NOTE F)
T°
AIH COOLANT
TEMP SENSOR
125-4812
189-RD
2
ANTENNA
167-3492
M736-BU-18
1
200-BK-18
235-BK-18
AIR HEATER
107-9652
T°
E554-PK-18
GND
F/B A761-PU-18
8
6
F773-OR-18
F774-WH-18
BLOCK AS.
121-1023
892-BR-18
893-GN-18
235-BK-18
200-BK
308-YL
308-YL
110-RD
189-RD
189-RD
189-RD
189-RD
189-RD
105-RD
105-RD105-RD
101-RD-6
175-RD-14
RD-18
WH-18
103-RD
607-PK
160-PU
160-PU
160-PU
151-GN
BK-18
189-RD
154-RD
307-OR 306-GN
A588-GN
646-RD-18
A588-GN
A588-GN
A588-GN
308-YL
C987-RD-14
184-RD
151-GN
116-BR-18
A588-GN
189-RD
322-GY
616-BU
607-PK
C987-RD-14
151-GN
A588-GN
168-RD-18
200-BK-10
200-BK-18
200-BK-10
200-BK-18
L976-GN-18
L976-GN-18
L976-GN-18
365-YL-18
168-RD-18
200-BK
+B
189-RD
322-GY
616-BU
ACCEL
607-PK
189-RD
105-RD
154-RD
151-GN
615-YL
A770-PK-18
A770-PK-18
169-PK-18
169-PK-18
112-PU-6
A588-GN
645-RD-18
169-PK-18
118-GY
307-OR
175-RD-14
103-RD
607-PK
147-PU
152-BU
308-YL
113-OR-18
124-GN-14
120-YL
151-GN151-GN
123-WH-18
151-GN
129-BU
150-OR-18
179-BU
191-WH-14
L42
200-BK
BACKUP RESISTOR
102-8015
235-BK-18
200-BK
235-BK-14
308-YL
105-RD
200-BK
646-RD-18
200-BK
684-RD-18
306-GN
306-GN
310-PU-18
L975-PK-18
A718-PU-18
200-BK-18
200-BK-18
308-YL
308-YL
308-YL
308-YL
A495-GY
A495-GY
A495-GY
306-GN
200-BK
892-BR-18
235-BK-14
A718-PU-18
L975-PK-18
310-PU-18
893-GN-18
309-GY
112-PU-6
200-BK
308-YL
308-YL
308-YL
308-YL
308-YL
308-YL
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 322C EXCAVATOR (170-9351 HE01).
GG 116-0080 H-12 (NOTE F)
FF 186-4517 B-11 (NOTE F)
HH 163-6752 G-8
DD 163-6751 G-8
CC 163-6775 G-11
BB 116-0080 I-11
AA 183-1036 B-11
CABLE AS.
200-BK
MM 183-1012 H-8
WIRE AS.
309-GY
200-BK
200-BK-18
200-BK-18
101-RD-6
101-RD-4
101-RD-4
109-RD-6
109-RD-8
109-RD-6
109-RD-6
168-RD-10
877-YL-4
877-YL-4
304-WH-8
304-WH-8
M 163-6750 C-2
L 102-7867 C-1
K 5I-8369 C-2 (NOTE A)
J 116-0207 C-2
H 170-6813 D-1 (NOTE B)
G 163-6787 D-1
XX 170-6953 H-1 (NOTE G)
E 163-6763 I-3 (NOTE H)
D 183-0999 G-7
C 186-4516 A-12
B 183-1026 A-3
2
1
DECEL
7
ENG GOV
ACTUATOR
157-3178
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
IDENT PART NO. LOC
10A
C
B
200-BK-18
ATCH QUICK
COUPLER SW
1G-8951
A
HARNESS AS.
684-RD-18
607-PK
607-PK
607-PK
200-BK-18
200-BK-18
645-RD-18
616-BU
NOTE E: USE WITH 12V 7A X 2 CONVERTER.
NOTE D: NOT USE WITH HEATER UNIT.
149-RD
149-RD
149-RD
115-RD
115-RD
115-RD
114-RD
F889-WH-18
L27
K877-BU-18
1
2
B
A
C
114-RD
114-RD
2
1
200-BK-18
235-BK-18
L968-OR-18
L969-WH-18
A770-PK-18
2
1
615-YL
DIODE
121-1022
X 167-3457 I-5
K907-BU-18
K906-GN-18
A768-BU-18
169-PK-18
F773-OR-18
F774-WH-18
169-PK-18
A769-GY-18
575-YL-18
576-PK-18
2
3
4
5
6
1
201-BK-18
FAULT ALARM
132-1829
235-BK-18
147-PU
147-PU
K904-GN-18
235-BK-18
BK-18
235-BK-18
200-BK
BK-18
YL-18
A586-OR-18
CDL -
10
1
6
7
GND
8
20
14
17
2
11
16
1
3
2
4
NOTE B: USE WITH POWER WINDOW.
3
19
12
18
15
M737-WH-18
+B
WASH
9
1
6
5
2
TRAVEL MODE IND 1
2
1
4
1
6
5
7
200-BK-18
8
2
150-OR-18
3
4
7
2
4
169-PK-18
124-GN-14
CAB FAN
1
3
235-BK-18
11
535-BU
+12V
3
13
4
5
9
10
ATCH
HAMMER
PRESS.SW
167-3466
TRAVEL LEFT
PRESS SW
167-3466
ACC
RISE. S
REV
WASH
INT(6)
INT(3)
IND UNIT
163-6702
TRAVEL RIGHT
PRESS SW
167-3466
JOYSTICK
PRESS SW
167-3466
1
2
1
2
ATCH
SEAT WITH
SEAT HEATER
164-0505
+B
L. CHASSIS
BACKUP
EPR VALVE SW
163-6710
ONE TOUCH
LOW IDLE SW
128-2134
NEUTRAL START
LIMIT SW
163-6785
HORN SW
128-2134
6
4
2
5
3
ATCH LOWER
WIPER MOTOR
167-7079
+
S +1
-
MOTOR
12
7
8
1
ATCH
AUX HYD
PRESS SW
167-3466
118-GY
129-BU
179-BU
120-YL
147-PU
113-OR-18
180-GN
DIODE
121-1022
LOW
123-WH-18
WIPER CUT
GND
WA+
W. CW
W. CCW
191-WH-14
QUICK COUPLER
15A
5A
10A
POWER WINDOW
15A
ATCH SOL
10A
10A
5A
NEUTRAL START RELAY
161-3128
5A
120-YL
STOP
166-BR-18
10A
684-RD-18
8
HYD LOCK SOL RELAY
161-3128
CHASSIS LAMP RELAY
161-3128
A/C SW PANEL
157-3210
NN 183-1011 G-8
13
200-BK-18
684-RD-18
BOOM LAMP RELAY
161-3128
CAB LAMP RELAY
161-3128
684-RD-18
LOWER WIPER/WASHER
CHASSIS LAMP
WIPER/WASHER
CIGAR LIGHTER
12V 7A CONVERTOR 1
12V 7A CONVERTOR 2
5A
10A
10A
10A
SW PANEL/RADIO
BACKUP/MONITOR CONT
5A
A/C
SEAT HEATER
DIODE
121-1022
AUX CKT
5A
10A
1
2
6
START RELAY
125-1302
RR 163-6780 H-8
HEATER RELAY
116-0114
2
1
K849-YL-18
K851-BU-18
12
11
10
9
7
8
1
6
5
4
3
2
A
B
C
322-GY
K876-BR-18
L27
22
12
R 183-0998 A-6
K852-GN-18
BR-18
M738-OR-18
491-PK-18
11
F889-WH-18
F889-WH-18
ATCH UNDER
WINDOW LIMIT SW
129-6466
7
SS 111-4829 G-8
184-RD
684-RD-18
YL-18BR-18
A769-GY-18
A768-BU-18
C987-RD-14
320-RD-18
109-RD-6
11
5
7
10
1
12
8
4
A 186-4582 G-3
149-RD
115-RD
3
2
6
114-RD
W. LOW
103-RD
105-RD
110-RD
175-RD-14
780-PU-18
780-PU-18
200-BK
ESS
ALTERNATOR
9W-3043
ENG OIL
LEVEL SW
170-9376
2
1
T°
307-OR
168-RD-10
4
COOLANT TEMP
SENSOR
4I-5394
BATMTR
AEC MODE IND
W. INT(3)
+
K870-GN-18
235-BK-18
-
M738-OR-18
9
W. INT(6)
ALARM CANCEL IND
152-BU
160-PU
HORN RELAY
161-3128
9
235-BK-18
ALARM CANCEL SW
M739-YL-18M739-YL-18
235-BK-18
607-PK
STARTER
MOTOR
104-7040
2
1
ENG
SHUTDOWN SOL
155-4652
ENG OIL
PRESS SW
3E-6455
CHASSIS
BK-18
RD-18
ENG SPEED
PICKUP
189-5746
E554-PK-18
C
B
AEC MODE SW
A
BU-18
200-BK
200-BK
30A
A/C CLUTCH
SOL
176-1895
MOTOR
1
2
325-PK-18
200-BK-10
6
323-WH-10
365-YL-18
6V-5821
(NOTE F)
10A
CAB LAMP
BOOM LAMP
TRAVEL MODE SW
L. BOOM
L. CHASSIS
10A
10A
5A
10A10A
A589-OR-14
10A
15A
10A
A758-BR-18
ACC
10A
+B
10A
KEY SW
TIMER RELAY
ATCH V CONT
A/C BLOWER
T 170-9332 A-3 (NOTE G)
E/P CONT
BK-00
BK-00
U 116-0098 A-5
A757-GY-18
A756-BU-18
RD-00
RD-00
RD-00
RD-00
A755-PK-18
2
1
ATCH 1PUMP-2PUMP
EXCHANGE SOL1
165-9549
310-PU
1
2
CDL +
(NOTE F)
(NOTE F)
(NOTE F)
K871-WH
K871-WH
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L63
200-BK-18
200-BK-18
5
4
3
2
1
412-BU-18
311-WH-18
SIGNAL
GND
200-BK
616-BU
616-BU
200-BK
+12V
BACKUP GOV SW
163-6711
LIGHT
WIPER
MOTOR
161-3667
WIPER CONT
155-7042
IN
GND
OUT
+B
2
3
4
TIMER
RELAY
163-6703
1
DOME LAMP/MEMORY
HORN
TRAVEL STRAIGHT
SOL
121-1491
2
1
15A
30A
15A
2
L976-GN-18
J
H
G
F
D
C
B
A
E
ET CONN
L63
200-BK-18
K871-WH
K871-WH
K871-WH
1
SWING
BRAKE SOL
121-1491
K871-WH
1
HYD LOCK
SOL
121-1491
2
L63
NOTE B
L976-GN-18
TRAVEL SPEED
SOL
121-1491
S 167-3455 C-4
UU 132-1827 A-5
SIGNAL
+B
GROUND
8
1
L47
ATCH 1PUMP-2PUMP
EXCHANGE SOL2
165-9549
2
616-BU
2
3
MONITOR
157-3198
MOTOR
MOTOR
CAB
1
4
3
5
235-BK-18
NEG
POS
L976-GN-18
200-BK
4
5
3
200-BK
616-BU
615-YL
200-BK
NEG
POS
V 116-0096 A-5
NEG
WINDOW
LIMIT SW
117-6306
ATCH
CAB LAMP
167-3441
POS
120-YL
120-YL
1
3
2
5
4
L972-BU-18
6
6
5
4
3
2
6
1
12V OUT
24V MEMORY
24V IN
120-YL
GND
12V MEMORY
GND
ATCH 12V 7A
CONVERTER
167-3467
12
11
10
9
8
7
12V 7A X2 (NOTE E)
135-BU
200-BK
120-YL
L45
L46
CHASSIS
120-YL
12V 7A
1
2
235-BK-18
SWITCH PANEL
163-6701
ATCH
REFUELING
START RELAY
149-5050
210-BK
120-YL
A/C PHOTO
SENSOR
167-7083
(NOTE D)
135-BU
120-YL
200-BK
10
5
SERVICE
METER
6T-7337
MOTOR
2
1
CIGAR
LIGHTER
9W-0335
NEG
ATCH 1PUMP-2PUMP
EXCHANGE SW
170-6955
ATCH SINGLE-DOUBLE
ACTION EXCHANGE SW
170-6956
ATCH LOWER
WIPER SW
163-6718
ATCH LOWER
WASHER SW
163-6719
VV 167-3456 G-1
EE 170-9331 G-11 (NOTE F)
WIRE PAIRS OF 892-BR & 893-GN MUST BE TWISTED
AT LEAST 1 TURN PER 25mm.
L45
L45
ATCH SEAT
HEATER SW
163-6721
ATCH
BOOM LAMP
153-2521
CHASSIS
OPERATOR STATION
S4
S3
S2
S1
COM
K (NOTE A)
ATCH
CAB LAMP
167-3441
ATCH
REFUELING PUMP
123-3929
ATCH
REFUELING
START SW(NO)
6T-9442
HORN
7Y-3919
K (NOTE A)
POS
+
-
ATCH
REFUELING
STOP RELAY
149-5050
KEY SW
9G-7641
ATCH
REFUELING
STOP SW(NC)
9X-4184
LL 163-6755 G-8
(NOTE C)
CHASSIS
LAMP
153-2523
THROTTLE
POS SW
106-0107
ATCH
BOOM LAMP
153-2521
ATCH FINE
SWING CONT SW
163-6722
ATCH POWER
WINDOW SW
163-6720
R
C
S
B
OFF
ON
ST
NOTE A: USE WITH SHORT BOOM.
1
2
2
1
HORN
7Y-3920
P
P
D
AA
BB
BB CC
FF
GG
GG
EE
B
B
B
B B
B
B
B
B
D
KK PP
LL
EE
CC
D
N
N
N
N
N
N
N
N
N
N
C B
N
N
N
N
D
D
D
RR
DD
A
A
D D
D
D
TT
D
D D
D
D
RR
NN
MM
A
D
D
D
D
D
D
SSHHD
NNLL
DDKK
B B
DD
D
N
B
B
B B B
B
B
B B B
R R
Y
Y
Y
A
X
X A
N
G,H
G,H
G,HA
G,H
A
P B
B A
B
N
B
NB
B
B
WW
WWN
A
N
XX
F
F,XX
A
A
A
XX
F,XX
F,XX
F
XX
XX
F
XX
3
2 1
12
1110
9
87
6
54
3
21
L6
L5
G,H
L48
G,H
G,H
G,H
G
B
M
T T
B
A
N
N
N
N
N
A
A
G,H
W
W
W
SS
B
B
P
JJ
N
UU B
B
R
G,H
VV VV
G
H
A
B
BB
UU
B
Y/G
Y/W
A
2
1
H
H
G,H
G,H
G,H
N
N
G,H
C
1
2
B
B
T
B
101-RD-6
B
C
C
B
B
G,H G,H
G,H
G,H
E,WWE,WWA
A
A
F
XX
F
XX
F
XX
F
XX
F
XX
F
XX
A
A
A
A
Z Z
D
D
D
D
D
MM
SS
HHDD
D
B
C
B
BB
C
C
C
C
2
1
B
C
B
SG
B
B-
B+
RD
ALT
B
P
P
B
B
B
G
H
D
G,H
B
B
B
B
B
U U
T
U
M
M
B
G,H
B
C
FF
AA
G
H
B
L
L
V
T
T
VVVV
G
H
T
J
J
F
XX
T
G
H
F
XX
VV
G
H
G
H
G
H
G
H
G
H
R
C
S
B
H
G,H
OFF
G,H
ON
ST
CONN 7
CONN 17
CONN 18
CONN 19 CONN 20
CONN 21
CONN 34
CONN 34
CONN 22
CONN 23
CONN 24
CONN 25
CONN 26
CONN 27
CONN 28
CONN 29
CONN 30
CONN 32
CONN 31
CONN 33
H
G
I
F
E
D
C
B
A
9 8 7 6 5 4 3 2
1
11 1012
C
B
A
H
G
I
F
E
D
3
2
1
9 8 7 6
5
4
1112 10
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
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
L#
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
TURN SIGNAL AND WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE /PUMP CONTROL CIRCUIT.
START AID CIRCUIT.
ATCH VALVE 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.