322C EXCAVATOR ELECTRICAL SCHEMATIC

RENR3867
June 2001
322C Excavator
Electrical System
322C:
BKJ1-UP
A
B
C
E
F
G
D
1
2
3
4
5
6
7
8
9
10
10
11
11
12
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
1
2
3
4
5
6
7
8
9
10
11
12
13
19
15
16
14
47
18
20
21
22
23
24
25
26
28 29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
17
48
49
Machine Harness Connector And Component Locations
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
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
AC Unit D-5 1
Solenoid - Atch 1 way/2 way Cont B-2 26
Air Heater C-11 3
Solenoid - Atch Flow Limit A-8 6F
Alternator B-11 5
Solenoid - Atch Quick Coupler A-8 28
Atch 12V 10A Converter I-5 1D
Solenoid - Atch Relief 1 B-2 30
Atch Battery I-11 8
Solenoid - Atch Relief 2 B-2 31
Atch Joystick I-3 2B
Solenoid - Atch Relief Check 1 B-2 30
Atch Joystick H-1 1C
Solenoid - Atch Relief Check 2 B-2 31
Atch Travel Alarm A-6
4
Solenoid - Atch Separate Valve D-12 2G
Battery I-11 8
Sensor - Squeeze Press
C-2
Block As. G-8 1E Solenoid - Atch Start Aid I-12 32
Breaker - Alternator H-11 2E Solenoid - Atch Stem 1 Cont (A) D-11 18F
Cigar Lighter F-2 4A Solenoid - Atch Stem 1 Cont (B) D-12 10F
Condenser GP (Basic) G-12 Solenoid - Atch Stem 2 Cont (A) D-11 11F
Control - Atch Valve G-11 3E
E
Solenoid - Atch Stem 2 Cont (B) D-12 12F
Control - Engine/Pump D-7 4E Solenoid - Atch Stem 3 Cont (A) D-11 16A
Control - Wiper F-2
19A
Solenoid - Atch Stem 3 Cont (B) D-12
13F
Converter D-5 21A Solenoid - Atch Stem 4 Cont (A) D-11
14F
Engine Gov Actuator A-12 2 Solenoid - Atch Stem 4 Cont (B) D-12
15F
Engine Speed Pickup B-12 9 Solenoid - Engine Shutdown B-12 33
Fault Alarm F-3 2A Solenoid - Fine Swing C-4 27
Fuse Base H-11, H-9 6E Solenoid - Hyd Lock B-8 3G
Heater Cont Unit H-7 5E Solenoid - Power Shift Cont A-9
17F
Horn (2) C-3 10 Solenoid - Swing Brake B-8
4G
Ind Unit H-1 1B Solenoid - Travel Speed B-8
5G
Lamp - Atch Boom C-2 11 Solenoid - Travel Straight B-8
6G
Lamp - Atch Cab G-1 12 Switch - Air Cleaner H-12 34
Lamp - Chassis A-3 13 Switch - Atch Aux Hyd Pressure I-1 9D
Lamp - Dome G-2 3A Switch - Atch Fine Swing Cont D-3 15A
Monitor F-1 6A Switch - Atch Hammer Pressure I-1 3D
Motor - Atch Lower Wiper I-2 2D Switch - Atch Lower Washer D-2 13A
Motor - Lower Washer I-12 14 Switch - Atch Lower Wiper D-2 14A
Motor - Starter A-11
15
Switch - Atch Medium Line Pressure I-1 D
Motor - Upper Washer I-12 16 Switch - Atch Quick Coupler G-3 6B
Motor - Wiper F-1
7A
Switch - Atch Start Aid D-3 20A
Relay - Boom Lamp H-10 8E Switch - Atch Start Aid Coolant Temp B-12 38
Relay - Cab Lamp H-10 7E Switch - Atch Straight Pressure I-1
40
Relay - Chassis Lamp H-10 9E Switch - Atch Under Window Limit F-1 17A
Relay - Heater H-8 10E Switch - Backup EPR Valve H-2 3B
Relay - Horn H-10 11E Switch - Backup Gov H-2 B
Relay - Hyd Lock Sol G-10 18E Switch - Coolant Level I-12 39
Relay - Main H-8 12E Switch - Disconnect H-11 19E
Relay - Neutral Start G-10 13E Switch - Engine Oil Level A-12 40
Relay - Start H-8
14E
Switch - Engine Oil Pressure B-12 41
Relay - Timer I-10
15E
Switch - Horn I-3 2C
Resistor - Alternator H-8 16E Switch - Hyd Oil Filter A-6 19F
Resistor - Backup H-9 17E Switch - Hyd Oil Level B-6 20F
Sender - Hyd Oil Temp A-6 1F Switch - Joystick Pressure I-2 5D
Sensor - A/C Photo F-1 9A Switch - Key H-1 4B
Sensor - AIH Coolant Temp C-12 21 Switch - Neutral Start Limit I-3 6D
Sensor - Atch Tool Pressure D-11
1G
Switch - One Touch Low Idle H-1
5B
Sensor - Atch Wtr 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 Press 1 A-9
4F
Switch - Window Limit G-1
18A
Sensor - Pump Discharge Press 2 A-8
5F
Switch Panel E-1
9A
Service Meter
F-2
5A
30
Switch Panel AC Heater D-1
1A
Solenoid - AC Clutch C-12 25
Machine locations are repeated for components located close together.
A = Located inside of cab.
B = Located inside of right console.
C = Located inside of left console.
D = Behind platform.
E = Located around relay panel.
F = Inside of pump.
G = Around control valve.
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
154-0498 Air Cleaner 635 ± 58 mm H O - Normally Open
167-3466
Joystick Pressure
Travel Left Pressure
Travel Right Pressure
ATCH Straight Pressure
ATCH Hammer Pressure
ATCH Aux Hydraulic Pressure
ATCH Medium Line Pressure
ATCH Straight Pressure
490 ± 49 kPa
(71.07 ± 7.11 psi)
290 kPa MIN
(42.06 psi)
Normally Open
(A-B) Normally Open
(A-C) Normally Closed
3E-6455 Engine Oil Pressure
90 ± 21 kPa
(13.05 ± 3.05 psi)
70 ± 21 kPa
(10.15 ± 3.05 psi)
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
Related Electrical Service Manuals
Form Number
Alternator: 9W-3043
SENR3685
Electric Starting Motor: 104-7040
Consist: 106-8557
SENR3859
Consist: 6V-5720
SENR3581
Cold Weather Application: 6V-5821 SENR3581
Title
Failure Mode Identifiers (FMI)¹
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.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-12 42
CONN 2 A-12 43
CONN 3 ET Connector I-11 20E
CONN 4 G-9 21E
CONN 5 G-9 22E
CONN 6 G-9 23E
CONN 7 G-7 25E
CONN 8 G-7 26E
CONN 9 G-7 27E
CONN 10 A-6 21F
CONN 11 E-6 28E
CONN 12 I-5 11D
CONN 13 F-5 12D
CONN 14 D-4 25A
CONN 15 E-4 22A
CONN 16 E-4 22A
CONN 17 F-4 23A
CONN 18 I-3 13D
CONN 19 H-3 15D
CONN 20 H-3 16D
CONN 21 H-3 17D
CONN 22 G-3 18D
CONN 23 C-3 48
CONN 24 C-2 49
CONN 25 F-1 24A
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.
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.
Component Identifiers (CID¹) and
Module Identifier (MID06A)² for Atch Valve Control
1522 Solenoid Valve for the Number One Check Valve
1523 Solenoid Valve for the Number Two Check Valve
1593 Extend Solenoid Valve for Auxiliary Stem 1
1594 Extend Solenoid Valve for Auxiliary Stem 2
1595 Extend Solenoid Valve for Auxiliary Stem 3
1596 Retract Solenoid Valve for Auxiliary Stem 1
1597 Retract Solenoid Valve for Auxiliary Stem 2
1598 Retract Solenoid Valve for Auxiliary Stem 3
1615 Solenoid Valve for One-Way Flow or Two-Way Flow
1657 Left Joystick Slide Control
1658 Right Joystick Slide Control
1665 Solenoid Valve for the Number One Relief Valve
1666 Solenoid Valve for the Number Two Relief Valve
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.
2
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD
Battery +
590 GY
Wiper SW to Intermittent Module
103 RD
Monitor
592 BU
DC/DC Converter Power Output
105 RD
Key Switch
A513 RD
Atch Converter Mem
106 RD
Atch Product Link
A537 PK
Not Used
109 RD
Alternator B+
A579 OR
Wiper Motor +
110 RD
Timer Relay B+
A580 BR
Wiper Motor -
112 PU
Main Power Relay Output
A581 GN
Wiper Motor Rev
113 OR
Switch Panel / Radio
A582 PU
Wiper Motor Stop
114 RD
Forward Horn
A584 BU
Front Window Limit Switch. to Wiper Cont
115 RD
Cab Lamp
A586 OR
Wiper Switch. to Wiper Cont
118 GY
Wiper/Washer
A588 GN
Hyd Lock Sol. Relay to Hyd Lock Sol.
120 YL
12V 10A Converter 1
C506 WH
A/C Unit To Condenser GP
123 WH
Aux Circuit
C537 GN
A/C Photo Sensor + Sig
124 GN
A/C
C538 OR
A/C Photo Sensor - Sig
125 RD
A/C Condenser Fan
C569 YL
Second DC/DC Converter Power Output
129 BU
Cigar Lighter
E554 PK
A/C Controller To A/C Compressor Clutch
135 BU
Switched Converter Output
Lighting Circuits
147 PU
Atch Sol
607 PK
Chassis Lamp
149 RD
Boom Lamp
615 YL
Cab Lamp
150 OR
Quick Coupler
616 BU
Boom Lamp
151 GN
Neutral Start Limit Switch
645 RD
Switch Panel To Boom Lamp Relay
152 BU
Lower Wiper/Washer
646 RD
Switch Panel To Cab Lamp Relay
154 RD
Neutral Start Limit Switch
A623 BU
Switch Panel To Chassis Lamp Relay
160 PU
Chassis Lamp
Control Circuits
166 BR
Cab Fan
763 BU
Travel Speed Sol
168 RD
Aux Circuit
780 PU
Quick Coupler SW To Sol
169 PK
Backup/Monitor Control
788 YL
Engine Speed -
175 RD
A/C Blower
A718 PU
Start Aid Coolant Sensor Signal
179 BU
12V 10A Converter 2
A755 PK
Throttle Switch #1
180 GN
Aux Circuit
A756 BU
Throttle Switch #2
184 RD
E/P Control
A757 GY
Throttle Switch #3
189 RD
Engine Governor Actuator
A758 BR
Throttle Switch #4
191 WH
Atch Fine Swing Cont SW
A761 PU
Gov Feedback
Ground Circuits A762 PU
Engine Speed +
200 BK
Main Chassis
A768 BU
Backup EPR Valve SW To Power Shift Cont Sol
201 BK
Opr Mon. Return
A769 GY
Backup EPR Valve SW To Power Shift Cont Sol
210 BK
Converter Ground
A770 PK
Electronic Pump Contrl Bypass Switch to Resistor
229 BK
Battery -
F773 OR
Governor Acceleration
235 BK
E/P Control Ground
F774 WH
Governor Deceleration
Basic Machine Circuits J726 YL
Main Relay Output To Atch Product Link Conn
301 BU
Fuel On
M734 BR
Travel Mode Switch
304 WH
Start Relay Output
M736 BU
Governor Command
306 GN
Starter Relay Coil to Neut Start Switch
M737 WH
Flow Limit Press Valve Sol
307 OR
Key Switch To Neut Start Switch
M738 OR
Prim NFC Press PRV
308 YL
Main Power Relay Coil
M739 YL
Solenoid Return 2
309 GY
Alt Regulator Term.
M740 PK
Travel Straight Solenoid
310 PU
Start Aid Switch To Start Aid Solenoid
M741 GY
Travel Alarm Cancel
311 WH
Start Aid Sol to Temp Switch.
M742 PU
AEC Model Switch
320 RD
Horn Relay To Horn Switch
877 YL
Heater Relay To AIH Heater
321 BR
Backup Alarm Lamp Travel Alarm
892 BR
CAT Data Link -
322 GY
Forward Horn
893 GN
CAT Data Link +
326 RD
Engine Shutdown Solenoid To Key Switch
K843 GN
Stem 3 Extend Switch
Monitoring Circuits K844 GY
Stem 4 Extend Switch
403 GN
Alternator (R) Term
K847 PU
Stem 3 Retract Switch
405 GY
Opr. Mon. Oil Pressure (Low Setting)
K848 WH
Stem 4 Retract Switch
410 WH
Opr. Mon. Fault Alarm
K849 YL
Hammer Pressure SW
412 BU
Opr. Mon. Coolant Level
K850 BR
ATT Stem 2
430 BU
Opr. Mon. Air Filter
K851 BU
Medium Line Pressure SW
487 OR
Hyd. Oil Flow Switch
K852 GN
Aux Hyd Pressure SW
491 PK
Hyd. Oil Temp Sensor
K853 GY
Atch Pump 1 Flow Control Valve
492 GY
Coolant Temp Sensor Signal
K854 OR
Atach Pump 2 Flow Control Valve
495 GN
Fuel Level Signal
K855 PK
Separator Valve
496 WH
Opr. Mon. Panel Hyd. Oil Level
K856 PU
Stem 1 Control Valve A
A495 GY
Alternator Resistor
K857 WH
Stem 2 Control Valve A
C468 BU
Engine Oil Level
K858 YL
Stem 3 Control Valve A
E469 YL
Tool Pressure Sensor
K859 BR
Stem 4 Control Valve A
E470 BR
Negative Cont. Pressure Sensor 1
K860 BU
Stem 1 Control Valve B
E471 BU
Negative Cont. Pressure Sensor 2
K861 GN
Stem 2 Control Valve B
E472 GN
12V Supply From Valve Control
K862 GY
Stem 3 Control Valve B
E473 GY
Stem 1 Modulation
K863 OR
Stem 4 Control Valve B
E474 OR
Stem 2 Modulation
K864 PK
ATT Relief Valve Solenoid 1
E475 PK
Stem 3 Modulation
K865 PU
ATT Relief Valve Solenoid 2
E476 PU
Stem 4 Modulation
K866 WH
ATT 1-Way/2-Way Control Valve Solenoid
H465 GN
Travel Alarm Cancel Indicator
K867 YL
ATT Solenoid Return 1
H466 BU
AEC Mode Indicator
K868 BR
ATT Solenoid Return 2
H467 WH
Travel Mode Indicator 1
K869 BU
ATT Solenoid Return 3
H473 BR
Travel Straight Pressure Switch
K870 GN
ATT Solenoid Return 4
H474 GN
Travel Right Pressure Switch
K871 WH
Not Used
H475 BU
Travel Left Pressure Switch
K872 OR
Not Used
H476 WH
Joystick Pressure Switch
K876 BR
ATT Relief Check Valve Solenoid 1
Accessory Circuits K877 BU
ATT Relief Check Valve Solenoid 2
501 GN
Wiper - Front (Low)
K879 GN
Not Used
506 PU
Washer - Front
C987 RD
Atch Valve Cont +B
508 PU
Radio Speaker - Left
G976 BU
Water Separator Sensor
509 WH
Radio Speaker - Left (Common)
K904 GN
Pump Discharge Pressure Sensor 1 - Signal
511 BR
Radio Speaker - Right
K906 GN
Swing Brake Sol - Signal
512 GN
Radio Speaker - Right (Common)
K907 BU
Swing Brake Cancel Sol
514 PU
A/C Unit To Condenser Motor
L968 OR
E/P Control PS Valve -
530 OR
Washer
L969 WH
E/P Control PS Valve +
535 BU
Switch To Lower Wiper Motor
L972 BU
Low Idle Switch
575 YL
Wiper - Aux. (Park)
L973 GN
Fine Swing Control Relay to Sol Valve
576 PK
Wiper - Aux. (Low)
L975 PK
Start Aid Control Lamp 1 Output
578 BU
Washer - Aux.
M906 BU
Squeeze Press Sensor
586 BR
Not Used
T967 YL Pump Discharge Pressure Sensor 2 - Signal
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
102-8015 Resistor - Backup 41.0 ± 2.05
111-9916 Solenoid -
Atch Stem 1 Cont (A)
Atch Stem 1 Cont (B)
Atch Stem 2 Cont (A)
Atch Stem 2 Cont (B)
Atch Stem 3 Cont (A)
Atch Stem 3 Cont (B)
Atch Stem 4 Cont (A)
Atch Stem 4 Cont (B)
Atch Separate Valve
Power Shift Cont
11.7 ± 2.2
112-0090 Solenoid - Atch Relief 1 19.5 ± 2.0
121-1491 Solenoid -
Travel Straight
Swing Brake
Travel Speed
Hyd Lock
32.0 ± 3.2
152-8346 Solenoid - Atch Quick Coupler 32.6 ± 1.6
155-4652 Solenoid - Engine Shutdown
Latch: 1.55 ± 0.15
Unlatch: 10.3 ± 1.0
171-0188 Solenoid - Atch Flow Limit 11.7 ± 1.2
3E-6332 Solenoid - Atch Start Aid 6.0
4I-5394 Sender -
Hyd Oil Temp
6134 to 7496
7Y-8242 Resistor - Alternator 47 ± 4.7
¹ At room temperature unless otherwise noted.
CONN 15
CONN 16
K848-WH-18
K844-GY-18
200-BK-14
(NOTE B)
235-BK-18
235-BK-18
235-BK-18
L43
D
AA
BB
BB CC
FF
GG
GG
EE
B
B
B
BB
B
B
B
B
L29
L37
L29
L37
FUSE
5A 141-2759
10A 113-8490
15A 113-8491
30A 124-3548
FUSE BASE
183-1000
AUX CKT
L44
L44
L37
L29
KK
PP
PP LL
EE
CC
L44
L44
L29
L37
L53
L29
L37
L53
L61
L65
M
L57 L57
L54
L61
L62
L52 L52
L59
L62
L61
L65
L59
L59
L62
L61
L59L58L58
2
1
C468-BU-18
235-BK-18
235-BK-18
C
B
L58L58
L45
L36 L36
L42
L43
D
D
L44
L32L32
D
RR
L44
D
D
A
A
L43
L42
L43
L42
DD
200-BK-18
310-PU
L42
D
ALT RESISTOR
7Y-8242
DD
D
D
RR
NN
MM
DIODE
121-1022
MAIN RELAY
165-4026
200-BK
200-BK
306-GN
306-GN
306-GN
L43
L42
A
D
D
D
D
D
D
SSHH
NNLL
DDKK
BB
DD
D
NBB
L41
L32L32
L29
L53
L37 L37 L30
L29
L40
L39
L30
L57
L41
L40
L39
L37
L57
L30
L29
L52
L52
L41
L40
L28
L38
L41 L41
L19
L40
L39
L37
L30
L29
L57L57
L54
L52
BB
L40
L28
L38 L38
L19
L39
L54
L52
L37
L38
L26
L26
309-GY
L41
L40
L28
L38
L19
L38
L37
B
L38
L37
L25
B
L19
L47
L46
L46 L46
B
L35
L34
L35
L34
L33
L17
L18
BB
200-BK-14
200-BK-14
200-BK-14
200-BK
200-BK
A
L50
L49
L49
L50
L24
L49
L50
L15
R
RA
L15
L15
L50
L49
L23 L23 L13
L14
L13
309-GY
309-GY
L32
L32
L50
L49
L56L56
M
L22
L23
L24
L24
L21
L32
L31 L31
L22
L23
L14 L14
L16
L31
L20
A770-PK-18
150-OR-18
105-RD
L56
L21
L14
L16
L22
L23
L24
L20L20
L20
L24
L8
L8
A
G
A
L23
L22
L21
L54
L29
L52
L52
L29
L30
B
L28
L28
BA
L14
L23
L22
L16
L26 L26
L52
L54
L52
L30
L25
L25
L25
B
N
L3
2
1
L19
L47
L1
NB
B
L18
L18
B
L49
L50
A
L15
L13
L14
L14
L50
L50
M
L12
L16
L11
L10
A
A
A
200-BK
L10
L11
L10
L12
3
21
12
1110
9
87
6
54
3
21
L6
L6 L6
L6
L4
L5
L5
G,H
L8
L8
L3
L7
G
G
G
CAB
G
L7
L7
L9 L9
L9 L8
L3
L3
L2
L2 L2
L4
L64
L1
B
L
L64
A588-GN
189-RD
607-PK
A718-PU-18
309-GY
304-WH-8
877-YL-4
109-RD-6
101-RD-4
A588-GN
189-RD
607-PK
A718-PU-18
309-GY
147-PU147-PU
304-WH-8
877-YL-4
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
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
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
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
4
3
1
2
235-BK-18
235-BK-14
235-BK-14
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
308-YL
308-YL308-YL
151-GN151-GN
C987-RD-14C987-RD-14
C987-RD-14
CHASSIS
+B
BK-00
BK-00
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
A
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
L47
M738-OR-18
C
B
A
M737-WH-18
M739-YL-18
235-BK-18
235-BK-18 235-BK-18
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
K866-WH-18
K865-PU-18
K870-GN-18
ATCH 1WAY/2WAY
CONT SOL
165-9560
ATCH
RELIEF SOL2
165-9560
M
1
2
2
1
M
2
1
M
235-BK-18
235-BK-18
CHASSIS
200-BK
322-GY
616-BU
200-BK
200-BK
200-BK
L9
L7
L2
L20
L21
A
L20
L51
B
1
2
496-WH-18
L51
322-GY
616-BU
L47
A
B
C
K872-OR
K879-GN
K871-WH
235-BK-18
109-RD-6
101-RD-4
235-BK-14
L51
506-PU-18
578-BU
310-PU
184-RD
L51
147-PU
147-PU
147-PU
ATCH BATTERY
3T-5760
(NOTE F)
BATTERY
3T-5760
ATCH WTR
SEPARATOR
LEVEL SNSR
178-2345
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
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 START
AID SOL
3E-6332
(NOTE F)
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
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
50
49
OPTION SW (4)
GROUND
STRAP
170-9328
43
33
34
48
54
46
31
28
52
5
12
11
18
45
39
30
20
3
21
10
22
40
37
13
9
8
1
36
29
25
16
SW RETURN
OVER LOAD ALM CANCEL SW
OPTION SW
OPTION SW
AUTO LUB FAILURE
SPL 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
CAPSULE FLTR PLUGGED
COOL. LEVEL SW
184-RD
308-YL
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
+B
+B
L975-PK-18
184-RD
184-RD
ATCH STEM 2 SWING CANCEL
CAT DATA LINK(+)
K850-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
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
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
200-BK-4
321-BR-18
200-BK-6
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
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
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
ATCH
FLOW LIMIT
SOL
171-0188
POWER SHIFT
CONT SOL
111-9916
235-BK-18
235-BK-18
E476-PU-18
K847-PU-18
K843-GN-18
E473-GY-18
607-PK
E474-OR-18
E472-GN-18
E472-GN-18
E472-GN-18 E472-GN-18
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
235-BK-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
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
M
175-RD-14
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
788-YL-18
A762-PU-18
G
R
491-PK-18
304-WH-8
RD-00
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
KEY SW.(ON)
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
645-RD-18
103-RD
152-BU
129-BU
113-OR-18
646-RD-18
118-GY
615-YL
123-WH-18
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
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
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
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
A588-GN
607-PK
169-PK-18
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
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
B
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
200-BK-14
200-BK-14
607-PK-18
586-BR
(NOTE B)
607-PK607-PK
200-BK
511-BR-18
512-GN-18
615-YL
200-BK
200-BK-14
R
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
135-BU-14
210-BK-14
586-BR
200-BK-18
586-BR
576-PK-18
123-WH-18
310-PU
307-OR
K879-GN
K872-OR
K871-WH
A537-PK-18
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
607-PK-18
607-PK-18
K871-WH
200-BK-18
200-BK-18
K872-OR
K879-GN
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
A537-PK-18
123-WH-18
578-BU
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
575-YL-18
200-BK-18
200-BK-18
576-PK-18
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
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
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-18
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
15
16
12
8
10
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
235-BK-18
13
308-YL
A537-PK-18
326-RD
F774-WH-18
F773-OR-18
235-BK-18
169-PK-18
K906-GN-18
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
K907-BU-18
M736-BU-18
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
506-PU-18
645-RD-18
780-PU-18
150-OR-18
105-RD
307-OR
326-RD
308-YL
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
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
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
B
HYD OIL
FILTER SW
173-3518
GROUND
SIGNAL
1
1
2
12
BB
4
CONSOLE(RH)
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
163-6700
2
1
HYD OIL
LEVEL SW
170-9376
309-GY
T
B
Y/G
Y/W
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
235-BK-18
E474-OR-18
E472-GN-18
CONSOLE(LH)
320-RD-18
200-BK-18
ATCH
JOYSTICK
177-7712
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
7
8
9
10
11
12
6
4
5
2
3
1
235-BK-18
235-BK-18
2
200-BK
120-YL
135-BU
120-YL
4
6
210-BK
5
1
3
COMMON
ATCH 12V 10A
CONVERTER
159-1549
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
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
A
2
1
ATCH
STRAIGHT
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
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
321-BR-18
321-BR-18
118-GY
169-PK-18
200-BK
200-BK
200-BK
200-BK
L69
R
169-PK-18
1
495-GN-18
235-BK-18
L69
ATCH PUMP 2
FLOW CONT SOL
ATCH PUMP 1
FLOW CONT SOL
ENG GOV
ACTUATOR
177-9673
ATCH NEGATIVE
CONT PRESS SENSOR
ONE TOUCH LOW IDLE SW
IMPLEMENT PRESS SW
ATCH PRIMARY
NFC SOL
B
ATCH
12V 10A SOCKET
117-2311
(NOTE C)
L21
V
V 132-1973 B-4
G
C
A
308-YL
A/C UNIT
168-4604
COOLANT LEVEL SW
096-0744
ATCH PRODUCT
LINK
6
5
4
LOWER WASHER
7T-8890
3
UPPER WASHER
7T-8890
L68
2
BK-16
PU-16
RD/WH-16 3
1
2
1
892-BR-18
2
893-GN-18
BK-16
PU-16
L69
PU-16
RD/WH-162
B
CONDENSER GP(BASIC)
176-1891
L69
511-BR-18
NOTE B: NOT FOR USE ON THIS MACHINE
J726-YL
PP 170-9478 H-11
509-WH-18
508-PU-18
512-GN-18
511-BR-18
106-RD
L69
P
200-BK
C506-WH
514-PU
200-BK
403-GN-18
200-BK
403-GN-18
ATCH SPEAKER (L)
6T-7695
DOME LAMP
176-1986
P
514-PU
892-BR-18
1
J726-YL
106-RD
MOTOR
C506-WH
893-GN-18
147-PU
V
30A
10A
1
2
322-GY
C468-BU-18
235-BK
326-RD
106-RD
508-PU-18
512-GN-18
646-RD-18
DIODE
121-1022
L68
309-GY
235-BK-18
322-GY
L68
A/C CONDENSER FAN
D
ATCH PROD. LINK
12 VDC RADIO
173-6532
509-WH-18
125-RD
322-GY
ATCH PRODUCT LINK
210-BK-14
WIPER/WASHER
118-GY
135-BU-14
191-WH
AUX SW
J726-YL
200-BK-10
607-PK
J726-YL
106-RD
J726-YL
113-OR-18
103-RD
C
106-RD
200-BK-18
147-PU
147-PU
J726-YL
AIR HEATER CTRL
106-RD
L67
109-RD-6
326-RD
311-WH-18
892-BR-18
WTR SEP. LEVEL SW
L68
L66
L66
893-GN-18
C506-WH
514-PU
109-RD-6
326-RD
403-GN-18
ATCH START AID
COOLANT TEMP SW.
3E-6449
(NOTE F)
1
2
B
T
AIH COOLANT
TEMP SENSOR
125-4812
189-RD
B
2
ANTENNA
167-3492
L66
403-GN-18
892-BR-18
M736-BU-18
1
200-BK-18
235-BK-18
AIR HEATER
107-9652
T
E554-PK-18
GND
403-GN-18
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
403-GN-18
105-RD105-RD
101-RD-6
175-RD-14
ENG/PUMP CONT
195-8921
RD-18
WH-18
103-RD
607-PK
160-PU
160-PU
160-PU
151-GN
BK-18
189-RD
L66
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
A588-GN
189-RD
322-GY
616-BU
607-PK
C987-RD-14
151-GN
ATCH VALVE
CONT.
185-2494
(NOTE G)
A588-GN
191-WH
125-RD
125-RD
200-BK
C569-YL-14
229-BK-14
179-BU
C569-YL-14
200-BK
200-BK
229-BK-14
210-BK-14
135-BU-14
+B
179-BU
179-BU
229-BK-14
C569-YL
179-BU
200-BK
189-RD
322-GY
616-BU
ACCEL
B
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
645-RD-18
169-PK-18
307-OR
175-RD-14
103-RD
607-PK
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
118-GY
L42
200-BK
BACKUP RESISTOR
102-8015
235-BK-18
200-BK
235-BK-14
CONV(OUT)
LH SPKR(-)
RH SPKR(-)
306-GN
306-GN
LH SPKR(+)
310-PU-18
L975-PK-18
A718-PU-18
200-BK-18
200-BK-18
RH SPKR(+)
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
12
308-YL
308-YL
GND
308-YL
308-YL
B
11
10
308-YL
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 322C EXCAVATOR.
(170-9351 CHG00)
GG 116-0080 H-12 (NOTE D)
FF 186-4517 B-11 (NOTE D)
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
877-YL-4
877-YL-4
304-WH-8
304-WH-8
210-BK-14
P
7
B
C
C
2
1
DECEL
7
B
B
8
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
9
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
22
125-RD
IDENT PART NO. LOC
10A
C
B
200-BK-18
ATCH QUICK
COUPLER SW
1G-8951
A
HARNESS AS.
514-PU
C506-WH
892-BR-18
607-PK
607-PK
607-PK
200-BK-18
200-BK-18
645-RD-18
616-BU
NOTE C: USE WITH 12V 10A CONVERTER
149-RD
149-RD
149-RD
115-RD
115-RD
115-RD
893-GN-18
114-RD
K877-BU-18
893-GN-18
114-RD
114-RD
L67
892-BR-18
514-PU
200-BK
200-BK
C506-WH
2
1
200-BK-18
235-BK-18
F
F
F
F
191-WH
191-WH
191-WH
191-WH
ATCH START
AID SW
183-1007
(NOTE D)
191-WH
L968-OR-18
L969-WH-18
A770-PK-18
615-YL
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
D
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
G
G
8
20
14
17
2
11
16
1
2
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
G
ACC
FINE
SWING SOL
116-3526
A
A
A
RISE. S
REV
WASH
INT(6)
E
E
INT(3)
IND UNIT
163-6702
TRAVEL RIGHT
PRESS SW
167-3466
1
2
2
1
JOYSTICK
PRESS SW
167-3466
1
2
1
2
+B
L. CHASSIS
BACKUP
EPR VALVE SW
163-6710
1
2
A
A
ONE TOUCH
LOW IDLE SW
128-2134
NEUTRAL START
LIMIT SW
163-6785
HORN SW
128-2134
6
4
2
5
A
3
A
2
1
ATCH LOWER
WIPER MOTOR
167-7079
+
S+1
-
MOTOR
12
7
8
1
ATCH
AUX HYD
PRESS SW
167-3466
A623-BU-18
129-BU
147-PU
113-OR-18
180-GN
DIODE
121-1022
LOW
123-WH-18
WIPER CUT
GND
WA+
W. CW
W. CCW
S
HEATER
CONT UNIT
197-4330
S
QUICK COUPLER
191-WH
5A
10A
125-RD
15A
ATCH SOL
10A
10A
5A
NEUTRAL START RELAY
161-3128
D
5A
STOP
166-BR-18
10A
8
D
HYD LOCK SOL RELAY
161-3128
CHASSIS LAMP RELAY
161-3128
D
NN 183-1011 G-8
13
200-BK-18
D
BOOM LAMP RELAY
161-3128
CAB LAMP RELAY
161-3128
D
LOWER WIPER/WASHER
CHASSIS LAMP
10A
CIGAR LIGHTER
12V 10A CONVERTER 1
12V 10A CONVERTER 2
10A
10A
10A
10A
SW PANEL/RADIO
BACKUP/MONITOR CONT
5A
A/C
AUX CKT
DIODE
121-1022
AUX CKT
5A
10A
1
2
MM
SS
6
START RELAY
125-1302
RR 163-6780 H-8
HEATER RELAY
116-0114
HHDD
2
1
K849-YL-18
K851-BU-18
A 207-8888 G-3
191-WH
191-WH
L66
12
11
10
9
7
8
1
6
5
4
3
2
A
B
C
322-GY
D 207-8887 G-7
K876-BR-18
12
K852-GN-18
BR-18
M738-OR-18
491-PK-18
11
ATCH UNDER
WINDOW LIMIT SW
129-6466
7
SS 111-4829 G-8
184-RD
YL-18BR-18
A769-GY-18
A768-BU-18
ATCH
12V 10A SOCKET
117-2311
(NOTE C)
2
C987-RD-14
320-RD-18
109-RD-6
11
5
7
10
1
12
8
4
149-RD
115-RD
3
2
6
114-RD
W. LOW
103-RD
105-RD
110-RD
175-RD-14
D
A588-GN
M906-BU-18
4
200-BK
B
C
B
BB
C
C
C
C
ESS
ALTERNATOR
9W-3043
ENG OIL
LEVEL SW
170-9376
2
1
2
1
B
1
308-YL
FUEL FLTR PLUGGED
G
307-OR
135-BU-14
210-BK-14
4
COOLANT TEMP
SENSOR
4I-5394
C
B
C506-WH
BAT
ATCH
12V 10A SOCKET
117-2311
(NOTE C)
MTR
514-PU
S
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
G
B
607-PK
STARTER
MOTOR
104-7040
B-
2
1
ENG
SHUTDOWN SOL
155-4652
ENG OIL
PRESS SW
3E-6455
CHASSIS
CONN 1
CONN 2
BK-18
RD-18
646-RD-18
308-YL
M
ATCH TOOL
PRESS.
SENSOR
000-0000
M
M
M
M
M
M
35
ENG SPEED
PICKUP
189-5746
E554-PK-18
C
B
AEC MODE SW
M
M
A
BU-18
200-BK
M
200-BK
B+
RD
M
M
M
M
M
6
NOTE D: USE WITH COLD WEATHER
5
166-BR-18
200-BK-18
200-BK-18
3
ATCH SPEAKER (R)
6T-7695
166-BR
200-BK
166-BR
10A
780-PU-18
780-PU-18
ATCH
QUICK COUPLER
SOL
152-8346
ATCH
CAB FAN
2
ALT
A/C CLUTCH
SOL
176-1895
MOTOR
1
2
B
6
6V-5821
(NOTE F)
10A
CAB LAMP
BOOM LAMP
TRAVEL MODE SW
L. BOOM
L. CHASSIS
10A
10A
15A
10A10A
200-BK
780-PU-18
780-PU-18
43
CAT DATA LINK (-)
10A
15A
10A
A758-BR-18
ACC
10A
+B
10A
KEY SW
TIMER RELAY
ATCH V CONT
A/C BLOWER
E/P CONT
BK-00
BK-00
A757-GY-18
780-PU-18
A756-BU-18
RD-00
RD-00
RD-00
RD-00
26
780-PU-18
A755-PK-18
2
1
CONVERTER
134-1346
200-BK-18
310-PU
B
B
M
1
U 170-6828 H-1
780-PU-18
T 167-3456 G-1
B
2
S 163-6810 F-1
R 192-4748 I-5 (NOTE C)
P 167-3527 D-5
P
6
N 183-0998 A-6
HORN
7T-0970
L 163-6750 C-2
K 5I-8369 C-2
J 116-0207 C-2
G 198-5959 D-1
M 204-1720 B-2
200-BK-18
780-PU-18
CDL +
E 170-6959 I-3
HORN
7T-0969
3
C 186-4516 A-12
(NOTE F)
(NOTE F)
(NOTE F)
5
1
4
C569-YL-14
229-BK-14
8
2
C569-YL-14
G
7
5
G
4
3
2
1
511-BR-18
508-PU-18
CONV(MEM)
412-BU-18
311-WH-18
SIGNAL
GND
200-BK-18
24V
IGN
12V
MEM
200-BK
616-BU
616-BU
200-BK
+12V
BACKUP GOV SW
163-6711
GND
592-BU-18
LIGHT
WIPER
MOTOR
161-3667
WIPER CONT
155-7042
D
IN
B
GND
OUT
+B
2
103-RD
3
4
TIMER
RELAY
163-6703
1
DOME LAMP/MEMORY
HORN
TRAVEL STRAIGHT
SOL
121-1491
2
1
200-BK
15A
113-OR-18
B
A513-RD-18
512-GN-18
5
2
8
10
4
7
3
1
J
H
G
F
9
D
C
B
A
E
ET CONN
2
6
200-BK-18
1
G
M
1
K870-GN-18
ATCH NEGATIVE
CONT PRESS SENSOR
2
ATCH
RELIEF SOL 1
112-0090
K876-BR-18
235-BK-18
SIGNAL
+B
ATCH RELIEF
CHECK SOL 1
165-9560
GND
G
ATCH
SQUEEZE PRESS SENSOR
157-8182
M
BR-18
YL-18
BK-18
1
G
K864-PK-18
SWING
BRAKE SOL
121-1491
G
509-WH-18
HYD LOCK
SOL
121-1491
592-BU-18
A513-RD-18
G
TRAVEL SPEED
SOL
121-1491
F 197-4279 H-1
G
G
G
SIGNAL
+B
GROUND
SW PANEL
A/C HEATER
168-4605
8
229-BK-14
191-WH
G
1
L47
2
G
616-BU
M906-BU-18
615-YL
2
3
191-WH
MOTOR
MOTOR
200-BK
200-BK
1
4
3
607-PK
5
607-PK
607-PK
235-BK-18
NEG
POS
L51
200-BK
4
5
3
200-BK
616-BU
615-YL
200-BK
NEG
POS
B 207-2921 A-3
NEG
WINDOW
LIMIT SW
117-6306
ATCH
CAB LAMP
167-3441
POS
L972-BU-186
120-YL
N
N
200-BK
120-YL
L45
L46
B
B
CHASSIS
120-YL
K870-GN-18
M906-BU-18
ATCH JOYSTICK
177-7711
235-BK-18
235-BK-18
SWITCH PANEL
163-6701
K864-PK-18
K876-BR-18
M906-BU-18
A/C PHOTO
SENSOR
167-7083
615-YL
103-RD
G
E
E
E
M
F
F
F
SQUEEZE CKT
F
F
M906-BU-18
16
DISCONNECT SW.
7N-0719 (NOTE F)
168-RD
L
646-RD-18
646-RD-18
615-YL
646-RD-18
308-VL
L
B
168-RD
180-GN
615-YL
F
F
F
10
F
5
SERVICE
METER
6T-7337
MOTOR
2
1
CIGAR
LIGHTER
9W-0335
179-BU-14
NEG
191-WH
191-WH
U
ATCH LOWER
WIPER SW
163-6718
ATCH LOWER
WASHER SW
163-6719
308-YL
EE 170-9331 G-11 (NOTE D)
WIRE PAIRS OF 892-BR & 893-GN MUST BE TWISTED
AT LEAST 1 TURN PER 25mm.
C
FF
AA
L45
L45
T
T
B
ATCH
BOOM LAMP
153-2521
CHASSIS
S4
S3
S2
S1
COM
K (NOTE A)
ATCH
CAB LAMP
167-3441
120-YL-14
3
2
MONITOR
195-8867
G
T
+12V MEMORY OUT
T
1
K (NOTE A)
J
POS
J
4
F
G
KEY SW
9G-7641
F
G
191-WH
GND
+12V SWITCHED OUT
GND
+24V SWITCHED IN
G
+24V BAT IN
LL 163-6755 G-8
(NOTE C)
12V 10A
L68
CHASSIS
LAMP
153-2523
THROTTLE
POS SW
106-0107
ATCH
BOOM LAMP
153-2521
G
G
ATCH FINE
SWING CONT SW
163-6722
G
R
C
S
B
G
G
OFF
G
ON
ST
NOTE A: USE WITH SHORT BOOM.
L43
607-PK
2
1
135-BU-14
4 412 3255
41
2
5
412
5
3
CONN 3
CONN 4 CONN 5 CONN 6
CONN 7
CONN 8
CONN 9
CONN 10
CONN 11
CONN 12
CONN 13
CONN 17
CONN 14
CONN 18
CONN 19
CONN 20
CONN 21
CONN 22
CONN 23
CONN 24
CONN 25
1
2
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITORING CIRCUIT.
PANEL LAMP CIRCUIT.
TURN SIGNAL AND WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
ENGINE/PUMP CONTROL CIRCUIT.
ATTACH VALVE CONTROL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS ON.
SYMBOL DESCRIPTION
BLADE, SPADE, RING OR SCREW
TERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION TO
MACHINE STRUCTURE
INTERNAL ELECTRICAL CONNECTION
TO SURFACE OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE, COMPONENT
CIRCUIT CONNECTED
SPLICE
CIRCUIT GROUPING DESIGNATION
H#
OPERATOR STATION
OPERATOR STATION
CAB
CAB
CAB
CAB
CAB
1
11 10 99 8 7 6 5 4 3 212
H
G
I
F
E
D
C
B
A
11112 10 9 8 7 6 5 4 3 2
H
G
I
F
E
D
C
B
A