320C U EXCAVATOR ELECTRICAL SCHEMATIC USED IN SERVICE MANUAL RENR3610

320C U Excavator
Electrical System
APA1-UP
CLM1-UP
ALX1-UP
CLZ1-UP
©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
Part No. Function Actuate Deactuat
e
Contact Position
Aux. Hydraulic Pressure
Hammer Pressure
Joystick Pressure
167-3466 Medium Line Pressure 490.00 ± 10% kPa 290.00 kPa MIN Normally Open
Straight Travel Pressure (71.07 ± 7.11 psi) (42.06 psi MIN)
Travel Left Pressure
Travel Right Pressure
Off Machine Switch Specification
Resistor, Sender and Solenoid S
p
ecifications
Part No. Com
p
onent Descri
p
tion Resistance
(
Ohms
)
¹
102-8016 Resistor: Backup 47.0 ± 2.35
107-7056 Solenoid: Fine Swing 34.0 ± 0.5 @ 20 °C (68 °F)
Power Shift Control
Stem 1 Control (A)
Stem 1 Control (B)
111-9916 Solenoid: Stem 2 Control (A) 11.7 ± 1.2 @ 20 °C (68 °F)
Stem 2 Control (B)
Stem 3 Control (A)
Stem 3 Control (B)
111-9961 Solenoid: Quick Coupler 32.0 ± 3.2 @ 20 °C (68 °F)
Relief 1
Relief 2
Hydraulic Lock
Swing Brake
Travel Speed
Travel Straight
163-6700 Sender: Fuel Level Full: 8.0 +1.0 or -0.5
Empty: 83.5 ± 1.5
171-0188 Solenoid: Flow Limit 11.5 ± 0.5 @ 20 °C (68 °F)
20824-25451 @ 0 °C (32 °F)
6134-7496 @ 25 °C (77 °F)
3989-4875 @ 35 °C (95 °F)
4I-5394 Sender: Hydraulic Oil Temperature 2224-2718 @ 50 °C (122 °F)
973-1189 @ 75 °C (167 °F)
475-522 @ 100 °C (212 °F)
221-269 @ 125 °C (257 °F)
¹ At room temperature unless otherwise noted.
112-0090 Solenoid: 19.5 ± 2.0 @ 20 °C (68 °F)
121-1491 Solenoid: 32.0 ± 3.2 @ 20 °C (68 °F)
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 ET Connector J-11 E
CONN 2 C-10 5
CONN 3 G-9 E
CONN 4 G-9 E
CONN 5 G-8 E
CONN 6 G-8 E
CONN 7 G-8 E
CONN 8 H-7 E
CONN 9 G-7 E
CONN 10 D-6 A
CONN 11 J-6 D
CONN 12 H-5 D
CONN 13 F-5 A
CONN 14 F-5 A
CONN 15 A-4 14
CONN 16 F-4 A
CONN 17 H-3 D
CONN 18 H-3 D
CONN 19 B-3 21
CONN 20 B-3 23
CONN 21 A-3 40
CONN 22 F-2 A
CONN 23 H-2 D
CONN 24 H-2 41
CONN 25 J-2 D
CONN 26 J-2 42
CONN 27 G-1 B
CONN 28 F-1 A
CONN 29 F-1 A
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
.
Related Electrical Service Manuals
Form Number
Engine/Pump Control:
RENR3814
Valve Control Tool:
RENR3823
Title
Failure Mode Identifiers (FMI)¹
FMI No. Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
14 Parameter failures.
15 Parameter failures.
16 Parameter not available.
17 Module not responding.
18 Sensor supply fault.
19 Condition not met.
20 Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
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
CID Com
p
onent
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 Valv
e
CID Com
p
onent
96 Fuel Level Sensor
110 Engine Coolant Temperature Sensor
167 Alternator
168 Voltage of the Power Supply (Key Switch)
190 Speed Sensor
248 Cat Data Link
374 Swing Brake Solenoid
376 Travel Alarm
581 Proportional Reducing Valve for the Power Shift Pressure
586 Engine Speed Dial
587 Feedback Sensor for the Governor Actuator
598 Travel Speed Solenoid
600 Hydraulic Oil Temperature Sensor
1161 Pump Delivery Pressure Sensor (1)
1162 Pump Delivery Pressure Sensor (2)
1525 Straight Travel Solenoid
2002 Action Alarm
Component Identifiers (CID¹)
Module Identifier (MID²)
(Atch.) Valve Control
(MID No. 06A)
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.
Engine and Pump Controller
(MID No. 069)
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Eng. Governor D-12 1 Solenoid - Power Shift Control D-10 F
Air Heater E-11 2 Solenoid - Quick Coupler A-3 20
Alarm - Fault D-2 A Solenoid - Relief 1 B-3 29
Alarm - Travel A-6 3 Solenoid - Relief 2 C-3 30
Alternator F-12 4 Solenoid - Relief Check 1 C-3 31
Batteries J-12 6 Solenoid - Relief Check 2 C-3 32
Block Terminal G-8 E Solenoid - Stem 1 Control (A) F-8 34
Breaker - Alternator G-10 E Solenoid - Stem 1 Control (B) F-8 35
Control - Attachment Valve A-8 22 Solenoid - Stem 2 Control (A) F-8 36
Control - Eng. Pump A-11 17 Solenoid - Stem 2 Control (B) F-9 37
Converter - 12V 7A J-6 D Solenoid - Stem 3 Control (A) F-9 38
Horns B-3 7 Solenoid - Stem 3 Control (B) F-9 39
Joystick J-2 C Solenoid - Swing Brake A-5 G
Joystick G-1 B Solenoid - Travel Speed A-5 G
Lamp - Boom B-2 8 Solenoid - Travel Straight A-4 33
Lamp - Cab F-1 9 Switch - A/C Control D-3 A
Lamp - Chassis A-4 10 Switch - Air Cleaner J-11 24
Lamp - Dome E-6 A Switch - Aux. Hydraulic Press. H-1 D
Meter - Service D-1 A Switch - Backup EPR Valve G-3 B
Monitor F-1 A Switch - Backup Governor G-3 B
Motor - Lower Washer J-12 11 Switch - Coolant Level J-12 25
Motor - Lower Wiper J-1 D Switch - Disconnect G-11 E
Motor - Starter E-12 12 Switch - Engine Oil Level D-12 26
Motor - Washer J-12 13 Switch - Engine Oil Press. D-12 27
Motor - Wiper E-1 A Switch - Fine Swing Control D-4 A
Relay - Boom Lamp J-11 E Switch - Hammer Foot J-3 45
Relay - Cab Lamp H-11 E Switch - Hammer Press. H-11 / J-1 D
Relay - Chassis Lamp J-11 E Switch - Heater Control D-3 A
Relay - Heater J-8 E Switch - Horn J-2 C
Relay - Horn H-11 E Switch - Hydraulic Oil Filter B-6 G
Relay - Hydraulic Lock Solenoid H-11 E Switch - Hydraulic Oil Level B-6 G
Relay - Main J-7 E Switch - Joystick Press. J-3 D
Relay - Neutral Start G-11 E Switch - Key G-1 B
Relay - Start G-7 E Switch - Lower Washer D-3 A
Relay - Start Control J-10 E Switch - Lower Wiper D-3 A
Relay - Timer J-10 E Switch - Medium Line Press. J-1 D
Resistor - Back Up J-7 E Switch - Neutral Start Limit J-2 D
Sender - Eng. Coolant Temp. F-12 15 Switch - One Touch Low Idle H-1 B
Sender - Fuel Level B-6 G Switch - Quick Coupler G-2 B
Sender - Hydraulic Oil Temp. B-6 G Switch - Seat Heater D-4 A
Sensor - A/C Photo E-1 A Switch - Straight Travel Press. H-1 D
Sensor - AIH Coolant Temp. F-12 16 Switch - Throttle Position G-1 B
Sensor - Eng. Speed E-11 18 Switch - Travel Left Press. J-1 D
Sensor - Pump Discharge #1 D-10 F Switch - Travel Right Press. J-1 D
Sensor - Pump Discharge #2 D-10 F Switch - Under Window Limit E-2 A
Sensor - Squeeze Pressure A-4 33 Switch - Window Limit F-1 A
Sensor - Water Separator Level J-12 47 Switch Panel D-2 A
Solenoid - Hammer H-12 44 Unit - Air Conditioner F-5 28
Solenoid - 1 Way / 2 Way Control C-3 46 Unit - Heater F-5 28
Solenoid - A/C Clutch E-12 19 Unit - Heater Control J-7 E
Solenoid - Fine Swing A-3 43 Unit - Indicator G-1 B
Solenoid - Flow Limit D-10 F Unit - Wiper Control D-2 A
Solenoid - Hydraulic Lock A-6 G
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 = Located around relay panel.
E = Located around hydraulic oil tank.
F = Located around pilot manifold
.
G = Located under platform.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
r
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD Bat (+) A580 BR Wiper Motor
103 RD Dome Lamp / Memory A581 GN Wiper Motor Raise
105 RD Key Start Sw A582 PU Wiper Motor Stop
109 RD Alt Output (+) Term. A584 BU Window Limit SW To Wiper Cont
110 RD Timer Relay A586 OR Wiper SW To Wiper Cont
112 PU Main Power Relay Output A587 YL Power Window Cont To Safety Sol Relay
113 OR Opr Mon Panel B (+) Switched A588 GN Safety Sol Relay To Sol
114 RD Warning Horn (Forward) C537 GN A/C Photo Sensor (+ Sig)
115 RD Cab Lamp C538 OR A/C Photo Sensor (- Sig)
118 GY Wiper / Washer C560 OR Left Rear Speaker
120 YL 12V 7A Converter 1 C566 PK Left Rear Speaker Common
123 WH Seat Heater C569 YL Atch 12V 7A Socket
124 GN A/C E554 PK A/C Clutch Solenoid
129 BU Cigar Lighter Lighting Circuits
130 RD Atch Valve Control 607 PK Flood Lamps - Front
135 BU 12V 7A Converter to Socket 615 YL Cab Flood Lamp/Rops
147 PU Atch. Fine Swing Control Sw. 616 BU Boom Flood Lamp
149 RD Boom Lamp 645 RD Boom Lamp Relay
150 OR Bat (+) 646 RD Chassis Lamp Relay
151 GN Hydraulic Lock Cancel Sw. 684 RD Cab Lamp Relay
152 BU Lower Wiper / Washer A623 BU Chassis Lamp Relay
154 RD Neutral Start Limit Sw. to Neutral Start Relay Control Circuits
168 RD Refueling Pump 763 BU Torque Converter Sw
169 PK Backup/Monitor Control 780 PU Atch Quick Coupler
175 RD A/C Blower 788 YL Engine Speed (+)
179 BU 12V 7A Converter A718 PU Start Aid Coolant Sensor Signal
180 GN Aux Ckt A755 PK Throttle Sw #1
184 RD Eng/Pump Control A756 BU Throttle Sw #2
189 RD Start Aid Ckt. A757 GY Throttle Sw #3
191 WH Power Window A758 BR Throttle Sw #4
Ground Circuits A761 PU Electronic Pump Cont Throttle Ground
200 BK Main Chassis A762 PU Elec Pump Cont Eng Speed Ground
201 BK Operator Monitor Return A768 BU Pump Control Valve #1 (+)
210 BK 12V 7A Converter Ground A769 GY Pump Control Valve #2 (-)
229 BK 12V 7A Converter Ground A770 PK Elec Pump Cont Bypass Sw
235 BK Electronic Pump Ctrl Gnd F773 OR Governor Accel
Basic Machine Circuits F774 WH Governor Decel
304 WH Starter Relay No. 1 Output K776 GN Start Cont Relay
306 GN Starter Relay Coil To Neut Start SW Or M734 BR Travel Mode SW
307 OR Key Start SW To Neutral Start SW Or M736 BU Governor Command/Backup SW
308 YL Main Power Relay Coil M737 WH Flow Limit Pressure PRV
309 GY Alternator Regulator M738 OR Primary NFC Pressure PRV
310 PU Start Aid SW To Start Aid Sol M739 YL PRV Return (2)
320 RD Horn Relay Coil To SW M740 PK Travel Straight Solenoid
321 BR Backup Alarm Lamp Travel Alarm M741 GY Travel Alarm Cancel Switch
322 GY Warning Horn (Forward) M742 PU AEC Mode Switch
326 RD Key SW "C" Term 877 YL Air Heater to Air Heater Relay
330 YL Neutral Start Relay Coil 892 BR Cat Data Link (-)
Monitoring Circuits 893 GN Cat Data Link (+)
403 GN Alternator (R) Term. K843 GN Stem3 Extend SW
405 GY Opr Mon Oil Press. (Low Setting) K844 GY Stem4 Extend SW
410 WH Action Alarm K847 PU Stem3 Retract SW
412 BU Operator Monitor Cool Flow K848 WH Stem4 Retract SW
430 BU Operator Monitor Air Filter K849 YL Atch Stem1 Swing Cancel
487 OR Hydraulic Filter SW K850 BR Atch Stem2 Swing Cancel
491 PK Hydraulic Oil Temp Sensor K851 BU Atch Stem3 Swing Cancel
492 GY Coolant Temp Sensor Signal K852 GN Atch Stem4 Swing Cancel
495 GN Fuel Level K853 GY Pump1 F1 Flow Cont PRV
496 WH Hydraulic Oil Level Switch K854 OR Pump2 F1 Flow Cont PRV
C468 BU Engine Oil Level K855 PK Separate Valve PRV
E469 YL Tool Press Sensor K856 PU ATT Stem1 Cont PRV (A)
E470 BR Negative Cont Press Sensor 1 K857 WH ATT Stem2 Cont PRV (A)
E471 BU Negative Cont Press Sensor 2 K858 YL ATT Stem3 Cont PRV (A)
E472 GN 12V Supply K859 BR ATT Stem4 Cont PRV (A)
E473 GY Att Stem1 Modulation K860 BU ATT Stem1 Cont PRV (B)
E474 OR Left Joystick Thumb wheel K861 GN ATT Stem2 Cont PRV (B)
E475 PK Att Stem3 Modulation K862 GY ATT Stem3 Cont PRV (B)
E476 PU Att Stem4 Modulation K863 OR ATT Stem4 Cont PRV (B)
H465 GN Travel Alarm Cancel Indicator K864 PK ATT1 Relief PRV
H466 BU AEC Mode Indicator K865 PU ATT2 Relief PRV
H467 WH Travel Mode Indicator K866 WH 1Way/2Way Cont Sol
H473 BR Travel Straight Pressure Switch K867 YL PRV Return (1)
H474 GN Travel Right Pressure Switch K868 BR Sol Gnd2
H475 BU Travel Left Pressure Switch K869 BU Sol Gnd3
H476 WH Joystick Pressure Switch K870 GN Sol Gnd4
Accessory Circuits K871 WH Pump Exchange Solenoid
501 GN Wiper - Front (Low) K872 OR Single/Double Action Exchange Solenoid
506 PU Washer - Front K874 BR Variable Relief 1 Check Solenoid
508 PU Radio Speaker - Left K875 BU Variable Relief 2 Check Solenoid
509 WH Radio Speaker - Left (Common) K879 GN Double Action Solenoid
511 BR Radio Speaker - Right 954 GN Hammer Sw A
512 GN Radio Speaker - Right (Common) G976 BU Water Separator Level SW
530 OR Washer Right K904 GN Pump Discharge - Signal
535 BU Atch Window Limit SW K906 GN Swing Brake Sol - Signal
575 YL Wiper - Aux K907 BU Swing Brake Sol - +B
576 PK Wiper - Aux L968 OR Electronic Pump Control Ps Valve (-)
578 BU Washer - Aux L969 WH Electronic Pump Control Ps Valve (+)
586 BR Aux Hydraulic - Close L972 BU Low Idle SW
590 GY Wiper Sw To Intermittent Module L973 GN Fine Swing Cont Relay To Sol Valve
592 BU DC/DC Converter Power Output L975 PK Start Aid Cont Lamp 1 Output
A513 RD Radio to Converter M906 BU PWM In
A537 PK Seat Heater T967 YL Pump Discharge(2) Press Sensor
A579 OR Wiper Motor +
1
2
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, Cable, or Harness
Assembly Identification
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
Ground
Connection
Connector
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.
325-A135 PK-14
AG-C4
111-7898
L-C12
3E-5179
C-C4
130-6795
*
*
*
*
*
Circuit
Number
Identification
Wire
Color
Wire
Gauge
AG-C3
130-6795
Harness identification letter(s) and a
serializing code. The "C" stands for
connector and the number indicates
which connector in the harness.
200-L32 BK-14
325-A135 PK-14
Part Number For
Connector Assembly
Harness identification code
This example indicates
wire 135 in harness "AG".
Machine Harness Connector and Component Locations
A
3
4
5
6
8
9
10
11
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37
35
33
3436
38
7
F
40
41
42
43
44
45
46
47
B
C
D
E
F
A
G
G
3
4
5
6
8
1
2
7
10
11
14
15
13
16
8
9
9
12
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37 35
33
34
36
38
39
40
41
42
43
44
45
46
47
39
7
12
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
ENGINE PUMP CONTROL CIRCUIT
TURN SIGNAL AND
WIPER/WASHER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
ATCH. VALVE CONTROL CIRCUIT
HEATER AND AIR CONDITIONING
CIRCUIT
535-BU-18
535-BU-18
535-BU
607-PK-18
A584-BU-18
K871-WH-18
K872-OR-18
K872-OR-18
K871-WH-18
607-PK-18
607-PK-18
147-PU
200-BK-14
200-BK-18
200-BK-18
200-BK-14
410-WH-18
113-OR-18
576-PK-18
575-YL-18
152-BU
A537-PK-18
200-BK-18
147-PU
586-BR-18
310-PU
307-OR
578-BU
578-BU
646-RD-18
646-RD-18
103-RD-18
615-YL
40
30
B
10
20
E H-2197-4279
170-6959
J-7
J-7
G-8
163-6751 G-8EE
DD G-8
G-8
G-8
G-8
163-6758 G-7NN
MM
J-2
163-6780
163-6753
D
LL
KK 111-4829
163-6757JJ
HH 170-6935
163-6754GG
C G-9186-4536
197-4289 G-5B
WIRE AS.
183-1054 J-12CC
BB
B
GROUND STRAP
132-1805
B
B
B
B
B
B B B B B
B
B
B
B
B
A G-5163-6749
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
615-YL
129-BU
535-BU
200-BK
169-PK-18
147-PU
103-RD-18
103-RD-18
169-PK-18
509-WH-18
M734-BR-18
M734-BR-18
118-GY
506-PU-18
892-BR-18
893-GN-18
123-WH-18
307-OR
310-PU
586-BR-18
147-PU
200-BK-18
200-BK-18
586-BR-18
A537-PK-18
200-BK-14
152-BU
575-YL-18
508-PU-18
576-PK-18
645-RD-18
410-WH-18
103-RD-18
113-OR-18
123-WH-18
103-RD-18
645-RD-18
200-BK-18
893-GN-18
892-BR-18
307-OR
200-BK-14
113-OR-18
535-BU
535-BU
113-OR-18
A584-BU-18
113-OR-18
L19
506-PU-18
512-GN-18
118-GY
103-RD-18
200-BK-18
511-BR-18
K871-WH-18
200-BK
200-BK-14
129-BU
310-PU
200-BK-18
200-BK-18
200-BK-18
200-BK-18
K872-OR-18
147-PU
147-PU
147-PU
147-PU
607-PK-18
607-PK-18
K879-GN-18
K879-GN-18
201-BK-18
K879-GN-18
147-PU
200-BK
201-BK-18
200-BK
201-BK-18
200-BK-18
C569-YL-14
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
103-RD
607-PK-18
607-PK-18
607-PK-18
607-PK
607-PK
L973-GN-18
L973-GN-18
103-RD
147-PU
L973-GN-18
135-BU-14
135-BU-14
200-BK-18
200-BK-18
607-PK-18
607-PK-18
200-BK-18
C569-YL-14
200-BK-18
607-PK-18
200-BK-18
200-BK-18
200-BK-14
200-BK
200-BK
615-YL
103-RD-18
511-BR-18
512-GN-18
508-PU-18
509-WH-18
200-BK-14
A584-BU-18
615-YL
615-YL
509-WH-18
508-PU-18
512-GN-18
511-BR-18
200-BK-18
103-RD-18
(NOTE A)
M906-BU-18
K849-YL-18
954-GN
954-GN
L47
L47
L47
H466-BU-18
L47
L47L47
L47
L46
200-BK
L46
L46
L46
200-BK
200-BK
200-BK-18
615-YL
A584-BU-18
200-BK
615-YL
200-BK-18
L46
235-BK-18 235-BK-18
235-BK-18
229-BK
210-BK
113-OR-18
M741-GY-18
147-PU
535-BU
535-BU
210-BK-14
535-BU
M741-GY-18
H465-GN-18
H467-WH-18
H467-WH-18
H466-BU-18
L46
M742-PU-18
H467-WH-18
M742-PU-18
229-BK-14
229-BK-14
L46
L46
L45
L45
607-PK
H465-GN-18
403-GN-18
M742-PU-18
200-BK
B
E554-PK-18
BR
R
R/L
L45
L44
G
B
210-BK-14
L44
A587-YL
191-WH-14
K879-GN-18
K872-OR-18
K871-WH-18
L973-GN-18
C569-YL
135-BU
123-WH-18
147-PU
576-PK-18
310-PU
307-OR
200-BK-14
607-PK
200-BK-14
M741-GY-18
169-PK-18
118-GY
M734-BR-18
L44
646-RD-18
615-YL
H466-BU-18
L44
L44
A537-PK-18
575-YL-18
L44
113-OR-18
586-BR-18
L44
H465-GN-18
103-RD
L43
L43
893-GN-18
L43
403-GN-18
L43L43L43
L43
L42
L42L42
L42
L41
L41
L42
L41
L41
L40
L40
L39
L39 L39 L39
L39
L39
L38L38
L38L38
L38
L38
S
S
S
L37
L37
L37
L37
L36
L36
L35
L35
L35
L35
L34
L34
L34
L34
308-YL
L33
L33
235-BK-18
+B
GROUND
SIGNAL
YL-18
BR-18
BK-18
A
C
B
308-YL
M906-BU-18
308-YL
235-BK-18
M906-BU-18
780-PU-18
M906-BU-18
780-PU-18
L33
L32
L32
L32
L32
L31
L31
L31
L31 L31
L30L30
ATCH SQUEEZE
PRESS SENSOR
157-3182
(NOTE F)
L30
L30
L30
L29
L28
L28
L28
L27
L27
L26
L26
L25
L25
L24
L24
L24
L23
L23
L23 L23
L22
L22L22
L22
L20
L21
L21
L21
L21
L21
L21
L20
L20
L20
L20
L19
L19
L18
L18
L17
L17
L16L16
L15
L15
L15
S
S
S
S
S
U
200-BK
1
2
607-PK
S R
BSR
109-RD-6
101-RD-6
112-PU-6
168-RD-10
A770-PK-18
169-PK-18
169-PK-18
309-GY-18
615-YL
646-RD-18
645-RD-18
175-RD-14
129-BU
179-BU
120-YL
147-PU
118-GY
152-BU
105-RD
308-YL
151-GN
307-OR
154-RD
103-RD
189-RD
892-BR-18
B
130-RD-14
322-GY
A588-GN
L975-PK-18
A718-PU-18
309-GY-18
616-BU
607-PK
893-GN-18
892-BR-18
189-RD
200-BK-14
646-RD-18
646-RD-18
646-RD-18
200-BK-18
200-BK-18
403-GN-18
309-GY-18
150-OR-18
645-RD-18
129-BU
150-OR-18
150-OR-18
151-GN
151-GN
124-GN-14
123-WH-18
123-WH-18
113-OR-18
152-BU
169-PK-18
403-GN-18
K776-GN-18K776-GN-18
607-PK
151-GN
607-PK
607-PK
320-RD-18
A587-YL
A587-YL
A587-YL
308-YL-18
535-BU
(NOTE A)
578-BU
506-PU-18
410-WH-18
R
6
5
4
3
2
1
200-BK
200-BK-18
L29
L29
L27
L27
L26
L25
184-RD
L20
L45
L40
V
V
V
101-RD-6
200-BK-18
235-BK-18
K849-YL-18
200-BK-18
101-RD-6
109-RD-8
306-GN
101-RD-4
200-BK-14
200-BK-18
200-BK-18
200-BK-18
235-BK-18
200-BK-18
403-GN-18
191-WH-14
124-GN-14
A
L18
F F F
CAB
508-PU-18
509-WH-18
511-BR-18
512-GN-18
F
(NOTE B)
F
130-RD-14
169-PK-18
893-GN-18
K849-YL-18
892-BR-18
954-GN
235-BK-18
200-BK-18
616-BU
235-BK-18
607-PK
K776-GN-18
322-GY
306-GN
189-RD
A588-GN
A718-PU-18
L975-PK-18
306-GN
200-BK-18
K849-YL-18
954-GN
A
C
B
ATCH
HAMMER PRESS. SW
167-3466
(NOTE E)ATCH
HAMMER SOL
121-6303
(NOTE E)
1
2
R
2
1
R
200-BK-18
L975-PK-18
308-YL-18
200-BK-18
310-PU-18
308-YL
A718-PU-18
A770-PK-18
168-RD-10
175-RD-14
103-RD
K867-YL-18
K867-YL-18
K867-YL-18
308-YL
954-GN
645-RD-18
235-BK-18
615-YL
189-RD
235-BK-18
154-RD
307-OR
151-GN
308-YL
308-YL
308-YL
308-YL
147-PU
120-YL
179-BU
129-BU
152-BU
E471-BU-18
118-GY
E470-BR-18
235-BK-18
235-BK-18
K854-OR-18
K867-YL-18
K853-GY-18
322-GY
607-PK
607-PK
403-GN-18
403-GN-18
403-GN-18
109-RD-6
304-WH-8
877-YL-4
308-YL
308-YL
E472-GN-18
E472-GN-18
RD-00
RD-00 BK-00
322-GY
168-RD-10
954-GN
308-YL
2
1
R ATCH
HAMMER FOOT SW
138-4653
(NOTE G)
BATTERY
3T-5760
9X-3404 (NOTE C)
POS NEGNEGPOS
CCBBAA
235-BK-18
235-BK-14
877-YL-4
101-RD-6
101-RD-6
112-PU-6
L975-PK-18
L13
200-BK-18
A718-PU-18
169-PK-18
K867-YL-18
A770-PK-18
169-PK-18
308-YL-18
200-BK-18
308-YL
308-YL
K867-YL-18
330-YL
200-BK-18
310-PU-18
200-BK-18
K867-YL-18
308-YL
L7
200-BK-18
K868-BR-18
308-YL
A762-PU-18
310-PU-18
788-YL-18
877-YL-4
M736-BU-18
189-RD
A761-PU-18
F774-WH-18
F773-OR-18
C468-BU-18
405-GY-18
101-RD-4
304-WH-8
E554-PK-18
109-RD-6
K776-GN-18
492-GY-18
A718-PU-18
K868-BR-18
K869-BU-18
308-YL-18
308-YL
K869-BU-18
K869-BU-18
308-YL
200-BK-18
A588-GN
306-GN
616-BU
893-GN-18
892-BR-18
200-BK-14
L975-PK-18
184-RD
200-BK
430-BU-18
578-BU
506-PU-18
G976-BU-18
147-PU
412-BU-18
189-RD
403-GN-18
K776-GN-18
A718-PU-18
877-YL-4
235-BK-18
235-BK-18
K863-OR-18
K869-BU-18
K859-BR-18
105-RD
K862-GY-18
330-YL
K869-BU-18
101-RD-4
K858-YL-18
K861-GN-18
109-RD-6
K857-WH-18
K860-BU-18
K868-BR-18
K856-PU-18
K868-BR-18
151-GN
308-YL
130-RD-14
101-RD-4
A770-PK-18
308-YL
A770-PK-18
169-PK-18
A770-PK-18
308-YL
892-BR-18
893-GN-18
A718-PU-18
308-YL
235-BK-18
K907-BU-18
310-PU-18
403-GN-18
200-BK-18
A758-BR-18
A757-GY-18
L975-PK-18
A756-BU-18
A755-PK-18
L969-WH-18
K848-WH-18
L972-BU-18
K844-GY-18
L968-OR-18
410-WH-18
E474-OR-18
E472-GN-18
M734-BR-18
E472-GN-18
L973-GN-18
M736-BU-18
M736-BU-18
306-GN
K868-BR-18
K868-BR-18
E472-GN-18
E475-PK-18
E476-PU-18
K843-GN-18
E473-GY-18
306-GN
607-PK
200-BK-18
169-PK-18
607-PK
235-BK
607-PK
T967-YL-18
607-PK
607-PK
169-PK-18
112-PU-6
169-PK-18
308-YL-18
308-YL-18
200-BK-18
M736-BU-18
M736-BU-18
M736-BU-18
E472-GN-18
M736-BU-18
308-YL
308-YL
308-YL
893-GN-18
893-GN-18
893-GN-18
235-BK
235-BK
893-GN-18
101-RD-6
A588-GN
189-RD
892-BR-18
893-GN-18
616-BU
403-GN-18
200-BK-14
A718-PU-18
K776-GN-18
184-RD
892-BR-18
892-BR-18
L975-PK-18
892-BR-18
892-BR-18
304-WH-8
506-PU-18
E473-GY-18
K843-GN-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
308-YL
A768-BU-18
109-RD-8
A769-GY-18
304-WH-8
L968-OR-18
L969-WH-18
E476-PU-18
E475-PK-18
E472-GN-18
235-BK-18
M734-BR-18
893-GN-18
892-BR-18
M736-BU-18
235-BK-18
E472-GN-18
E472-GN-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
410-WH-18
K906-GN-18
578-BU
200-BK-14
147-PU
E554-PK-18
200-BK-18
L973-GN-18
780-PU-18
200-BK-14
200-BK-14
308-YL
506-PU-18
578-BU
E474-OR-18
200-BK-18
200-BK-18
K844-GY-18
K848-WH-18
K869-BU-18
430-BU-18
K870-GN-18
K870-GN-18
K870-GN-18
235-BK-18
K866-WH-18
K874-BR-18
235-BK-18
K864-PK-18
235-BK-18
235-BK-18
K875-BU-18
K865-PU-18
K870-GN-18
K867-YL-18
K855-PK-18
235-BK-18
308-YL
E469-YL-18
1
ATCH VALVE CONT
157-3200
(NOTE F)
(NOTE A)
2
F
A
A
13
14
15
16
17
18
2
3
4
5
6
1
8
7
9
10
11
12
12
11
10
9
7
12
8
1
6
5
4
3
2
11
10
9
7
8
1
6
5
4
3
2
21
20
19
18
17
16
15
14
13
191-WH-14
L8
105-RD
L16
F
F
ATCH SPEAKER (L)
7Y-5505
ATCH SPEAKER (R)
7Y-5505
DOME LAMP
176-1986
CAB
L3
(NOTE B)
OPERATOR STATION
L5
L4
L3
A
200-BK-14
2
5
4
3
1
6
175-RD-14
200-BK-14
ATCH
HEATER UNIT
164-0490
A/C UNIT
161-3779
(NOTE A)
(NOTE A)
F FF
2
1
1
2
308-YL
K871-WH-18
K872-OR-18
235-BK-18
K849-YL-18
K851-BU-18
K852-GN-18
K849-YL-18
235-BK-18
H474-GN-18
105-RD
K852-GN-18
K851-BU-18
K852-GN-18
K849-YL-18
K851-BU-18
105-RD
200-BK-18
K904-GN-18
487-OR-18
C468-BU-18
684-RD-18
L975-PK-18
496-WH-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
646-RD-18
430-BU-18
412-BU-18
A762-PU-18
788-YL-18
200-BK-18
105-RD
308-YL
A761-PU-18
235-BK
308-YL
308-YL
308-YL
308-YL
200-BK-18
105-RD
646-RD-18
684-RD-18
308-YL
684-RD-18
2
1
1
2
2
3
4
5
6
7
8
9
11
1
12
13
E472-GN-18
235-BK-18
14
K870-GN-18
K865-PU-18
235-BK-18
763-BU-18
E472-GN-18
E475-PK-18
E476-PU-18
(NOTE B)
1
2
3
4
5
6
S
S
6
K875-BU-18
235-BK-18
5
4
3
K870-GN-18
2
1
15
16
(NOTE B)
A
17
18
151-GN
154-RD
C
2
1
B
K864-PK-18
235-BK-18
K874-BR-18
19
21
22
23
24
25
26
27
28
29
31
32
200-BK-14
33
E469-YL-18
308-YL
34
35
36
37
38
39
41
42
43
44
45
200-BK-14
46
47
48
49
M742-PU-18
H465-GN-18
ENG/PUMP CONT
157-3165
H473-BR-18
235-BK-18
235-BK-18
K866-WH-18
235-BK-18
ATCH RELIEF 2
SOL
112-0090
(NOTE K)
K855-PK-18
K867-YL-18
ATCH RELIEF
CHECK 2 SOL
165-9560
(NOTE K)
ATCH RELIEF 1
SOL
112-0090
(NOTE K)
235-BK-18
(NOTE B)
235-BK-18
ATCH 1WAY/2WAY
CONT SOL
165-9560
(NOTE K)
200-BK-18
780-PU-18
ATCH RELIEF
CHECK 1 SOL
165-9560
(NOTE K)
(NOTE B)
235-BK-18
200-BK-14
200-BK-14
200-BK-18
K859-BR-18
K869-BU-18
2
1
TRAVEL STRAIGHT
SOL
121-1491
HYD LOCK
SOL
121-1491
50
51
52
53
54
E554-PK-18
308-YL
K869-BU-18
K863-OR-18
K858-YL-18
K869-BU-18
E554-PK-18
20
10
30
189-RD
C468-BU-18
200-BK-18
A761-PU-18
BK
WH
F773-OR-18
F774-WH-18
L19
L18
A718-PU-18
200-BK-18
304-WH-8
RD-00
788-YL-18
A762-PU-18
200-BK-6
101-RD-4
200-BK-6
492-GY-18
877-YL-4
308-YL
M736-BU-18
200-BK-18
492-GY-18
A718-PU-18
200-BK-18
200-BK-18
109-RD-6
200-BK-6
200-BK-18
101-RD-4
304-WH-8
405-GY-18
K869-BU-18
K862-GY-18
200-BK-18
K857-WH-18
K868-BR-18
C468-BU-18
M736-BU-18
308-YL
F774-WH-18
F773-OR-18
A761-PU-18
200-BK-18
189-RD
109-RD-6
200-BK-18
200-BK-18
405-GY-18
877-YL-4
A762-PU-18
788-YL-18
40
189-RD
54
K868-BR-18
53
52
K861-GN-18
K856-PU-18
K868-BR-18
K868-BR-18
ENG
T~
AIH COOLANT
TEMP SENSOR
125-2982
2
1
AIR HEATER
5I-7746
GND
F/B
+B
ACCEL
1
2
DECEL
6
ENG GOV
ACTUATOR
157-3177
KEY
ENG OIL
LEVEL SW
170-9376
1
2
BATMTR
SG
STARTER
MOTOR
125-2988
2
1
ENG SPEED
PICKUP
125-2966
A/C CLUTCH
SOL
171-7495
(NOTE G)
MOTOR
B
GND
B
5
4
B
B
8
7ESS
CHASSIS
3
K860-BU-18
51
50
49
48
K853-GY-18
K867-YL-18
K854-OR-18
K867-YL-18
235-BK-18
147-PU
147-PU
235-BK-18
E470-BR-18
E471-BU-18
200-BK-18
200-BK
308-YL
308-YL
AA
S S
(NOTE B)
1
2
2
1
S S
B
S
C
A
A
C
ALTERNATOR
5I-8071
(30A)
B
T~
(NOTE B) (NOTE B)
COOLANT TEMP
SENDER
5I-7578
(NOTE B)
L19
E475-PK-18
167-3455W A-3
F-1
189-RD
321-BR-18
K906-GN-18
105-RD
A768-BU-18
A769-GY-18
T967-YL-18
K904-GN-18
E472-GN-18
K854-OR-18
K853-GY-18
E471-BU-18
K870-GN-18
118-GY
152-BU
763-BU-18
129-BU
179-BU
K869-BU-18
120-YL
K868-BR-18
K867-YL-18
147-PU
200-BK-18
169-PK-18
A588-GN
E473-GY-18
E470-BR-18
K850-BR-18
B
2
113-OR-18
K859-BR-18
A588-GN
151-GN
189-RD
235-BK-18
H473-BR-18
K861-GN-18
H476-WH-18
K856-PU-18
E474-OR-18
E469-YL-18
K851-BU-18
47
46
45
44
43
42
41
39
38
1
1
2
B
K865-PU-18
K862-GY-18
K857-WH-18
K852-GN-18
K849-YL-18
K864-PK-18
RD
412-BU-18
L
E
B
645-RD-18
37
36
35
34
33
K863-OR-18
L6
L2
M734-BR-18
646-RD-18
113-OR-18
129-BU
H475-BU-18
32
K858-YL-18
K860-BU-18
K855-PK-18
309-GY-18
309-GY-18
309-GY-18
150-OR-18
150-OR-18
101-RD-6
169-PK-18
200-BK-18
113-OR-18
124-GN-14
124-GN-14
147-PU
K852-GN-18
K851-BU-18
307-OR
151-GN
306-GN
410-WH-18
K871-WH-18
K872-OR-18
K875-BU-18
235-BK-18
210-BK
229-BK
K850-BR-18
K849-YL-18
H476-WH-18
235-BK-18
607-PK
E554-PK-18
607-PK
K874-BR-18
OR
WH
RD
GN
K866-WH-18
151-GN
E476-PU-18
892-BR-18
H476-WH-18
BU
GREEN
BLUE
893-GN-18
308-YL
K848-WH-18
K844-GY-18
235-BK-14
235-BK-14
130-RD-14
130-RD-14
780-PU-18
K843-GN-18
780-PU-18
OPTION SW (3)
OPTION SW (4)
SWITCH RET
SENSOR RET
160-PU
320-RD-18
OPTION PWM SENSOR (1)
+B
RIGHT JOYSTICK SW (1)
ATCH TOOL SW (2)
LEFT JOYSTICK SW (2)
LEFT JOYSTICK SW (1)
GND
KEY SW
ATT STEM 2 EXTEND PRV
ATT STEM 2 STATUS
ATT STEM 2 RETRACT PRV
ATT STEM 4 EXTEND PRV
PRV RET
MASK ENABLE
VARIABLE RELIEF 1 PRV
PRV RET
HYD LOCK CANCEL SW
VARIABLE RELIEF 2 PRV
ATT STEM 3 EXTEND PRV
ATT STEM 4 RETRACT PRV
ATT STEM 3 RETRACT PRV
ATCH TOOL SW (3)
ATCH TOOL SW (4)
ATCH TOOL SW (1)
PRV RET
PUMP2 NFC REDUCE PRV
PUMP1 NFC REDUCE PRV
RS-232 TX
+B
PRV RET
OPTION SW (1)
12V POWER SUPPLY
ATT STEM 1 EXTEND PRV
1WAY/2WAY CHANGE SOL
RIGHT FOOT PEDAL
CAT LINK -
RS-232 RX
PRV RET
SEPARATE VALVE PRV
ATT STEM 3 STATUS
PRV RET
CAT LINK +
RIGHT JOYSTICK SW (2)
RIGHT JOYSTICK THUMBWHEEL
31
29
28
27
26
25
VARIABLE RELIEF 1 CHECK SOL
ATT STEM 1 RETRACT PRV
GND
VARIABLE RELIEF 2 CHECK SOL
PUMP1 NEG CONT PRESS. SENSOR
PUMP2 NEG CONT PRESS. SENSOR
ATT STEM 4 STATUS
ATT STEM 1 STATUS
RS-232 GND
LEFT FOOT PEDAL
LEFT JOYSTICK THUMBWHEEL
S
SEPARATE LOAD PRESS. SENSOR
780-PU-18
24
H466-BU-18
307-OR
893-GN-18
892-BR-18
307-OR
K866-WH-18
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L
A584-BU-18
#
CIRCUIT GROUPING
DESIGNATION
IDENT
307-OR
PART NO. LOC
HARNESS AS.
H474-GN-18
K874-BR-18
SW RET
200-BK-18
200-BK
235-BK
200-BK
200-BK
235-BK-18
200-BK-14
200-BK-14
A587-YL
A587-YL
200-BK-18
160-PU-18
103-RD
235-BK-18
23
22
235-BK-18
235-BK-18
235-BK-18
M741-GY-18
200-BK
200-BK-14
CHASSIS
OPTION SW (2)
235-BK
235-BK
506-PU-18
K906-GN-18
L973-GN-18
780-PU-18
308-YL
L973-GN-18
780-PU-18
K906-GN-18
403-GN-18
118-GY
E554-PK-18
147-PU
578-BU
F774-WH-18
F773-OR-18
A769-GY-18
A768-BU-18
506-PU-18
892-BR-18
893-GN-18
M736-BU-18
M742-PU-18
H465-GN-18
H466-BU-18
H467-WH-18
M741-GY-18
H474-GN-18
H475-BU-18
H476-WH-18
H473-BR-18
K852-GN-18
K851-BU-18
K849-YL-18
L973-GN-18
410-WH-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
A755-PK-18
K907-BU-18
892-BR-18
780-PU-18
147-PU
150-OR-18
K875-BU-18
893-GN-18
320-RD-18
K855-PK-18
GOLD TERMINAL
M741-GY-18
646-RD-18
535-BU
235-BK-18
235-BK-18
235-BK-18
235-BK-18
K847-PU-18
235-BK-18
K847-PU-18
K843-GN-18
200-BK-14
K843-GN-18
E473-GY-18
E473-GY-18
E472-GN-18
200-BK-18
200-BK-18
235-BK-18
200-BK-14
129-BU
645-RD-18
578-BU
L972-BU-18
A758-BR-18
A757-GY-18
307-OR
310-PU
586-BR-18
K864-PK-18
A537-PK-18
152-BU
575-YL-18
M734-BR-18
A756-BU-18
K849-YL-18
(NOTE A)
118-GY
506-PU-18
307-OR
326-RD
308-YL
105-RD
B
1
2
3
607-PK
K906-GN-18
A768-BU-18
G976-BU-18
4
5
A769-GY-18
6
L968-OR-18
L969-WH-18
892-BR-18
893-GN-18
576-PK-18
410-WH-18
893-GN-18
K852-GN-18
H475-BU-18
K865-PU-18
147-PU
147-PU
147-PU
200-BK-14
200-BK
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
K849-YL-18
235-BK-18
235-BK-18
K879-GN-18
189-RD
A770-PK-18
151-GN
235-BK-18
L2
L1
893-GN-18
892-BR-18
L1
K851-BU-18
E469-YL-18
K907-BU-18
F773-OR-18
F774-WH-18
403-GN-18
169-PK-18
103-RD-18
C538-OR-18
C537-GN-18
535-BU
152-BU
200-BK
A579-OR
200-BK
A580-BR
A581-GN
A582-PU
152-BU
535-BU
C537-GN-18
C538-OR-18
103-RD-18
201-BK-18
169-PK-18
892-BR-18
893-GN-18
893-GN-18
200-BK-18
200-BK
200-BK-18
200-BK
124-GN-14
123-WH-18
169-PK-18
200-BK
129-BU
410-WH-18
200-BK-18
A586-OR-18
530-OR-18
A579-OR
118-GY
506-PU-18
A580-BR
501-GN-18
A581-GN
A582-PU
A584-BU-18
892-BR-18
590-GY-18
530-OR-18
200-BK
501-GN-18
A586-OR-18
322-GY
200-BK
615-YL
Y/G
Y/W
590-GY-18
113-OR-18
200-BK-18
189-RD
578-BU
103-RD-18
M742-PU-18
H467-WH-18
506-PU-18
147-PU
123-WH-18
M736-BU-18
154-RD
F774-WH-18
F773-OR-18
168-RD-10
184-RD
K850-BR-18
E470-BR-18
646-RD-18
21
19
18
E554-PK-18
M734-BR-18
308-YL
403-GN-18
K867-YL-18
A768-BU-18
A769-GY-18
607-PK
322-GY
A588-GN
616-BU
L975-PK-18
184-RD
430-BU-18
G976-BU-18
412-BU-18
403-GN-18
A762-PU-18
788-YL-18
A761-PU-18
C468-BU-18
405-GY-18
492-GY-18
K870-GN-18
E471-BU-18
K853-GY-18
K854-OR-18
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
19
18
17
16
15
14
13
12
1
9
8
29
RD-18
WH-18
BK-18
28
27
10
M737-WH-18
26
M738-OR-18
M739-YL-18
235-BK
T967-YL-18
K904-GN-18
20
25
4
7
24
2
23
22
6
5
21
3
11
C
11
B
3
21
5
6
22
23
2
24
7
4
25
20
26
10
27
28
29
A
8
9
1
12
13
14
15
16
17
322-GY
200-BK
616-BU
200-BK
M734-BR-18
A768-BU-18
L969-WH-18
L968-OR-18
235-BK
A756-BU-18
A757-GY-18
645-RD-18
2
A758-BR-18
M740-PK-18
L972-BU-18
A769-GY-18
607-PK
200-BK
A588-GN
763-BU-18
H474-GN-18
892-BR-18
495-GN-18
321-BR-18
892-BR-18
491-PK-18
496-WH-18
487-OR-18
T967-YL-18
K904-GN-18
893-GN-18
H467-WH-18
893-GN-18
200-BK-18
200-BK-18
487-OR-18
496-WH-18
491-PK-18
235-BK-18
235-BK-18
235-BK-18
321-BR-18
495-GN-18
1
308-YL
K906-GN-18
763-BU-18
200-BK-18
A588-GN
M736-BU-18
200-BK-18
(NOTE B)
18
19
304-WH-8
412-BU-18
147-PU
109-RD-6
G976-BU-18
506-PU-18
101-RD-4
877-YL-4
578-BU
17
16
15
200-BK
607-PK
30
(NOTE B)
235-BK-18
M740-PK-18
31
235-BK
L4
147-PU
M736-BU-18
14
575-YL-18
576-PK-18
235-BK
235-BK-18
H475-BU-18
M740-PK-18
235-BK-18
L973-GN-18
780-PU-18
200-BK-18
169-PK-18
169-PK-18
210-BK
C569-YL
200-BK-18 2
535-BU
4
200-BK-18
1
3
200-BK
179-BU
576-PK-18
200-BK
575-YL-18
120-YL
229-BK
120-YL
535-BU
200-BK
H474-GN-18
M741-GY-18
615-YL
607-PK
200-BK
L973-GN-18
H467-WH-18
322-GY
B
13
200-BK
645-RD-18
590-GY-18
113-OR-18
191-WH-14
607-PK
A584-BU-18
12
A582-PU
A581-GN
501-GN-18
A580-BR
506-PU-18
118-GY
200-BK-18
308-YL
326-RD
307-OR
A587-YL
105-RD
147-PU
G976-BU-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
1
135-BU
179-BU
235-BK-18
235-BK-18
2
12
11
10
9
8
7
1
5
2
T
T
T
3
6
4
ATCH 12V 7A
CONVERTER
167-3467
12V OUT
GND
GND
24V IN
24V MEMORY
12V MEMORY
1
5
2
3
6
4
PP
4
6
3
H-11170-9409
2
5
1
189-RD
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
235-BK-18
235-BK-18
200-BK
200-BK
L972-BU-18
200-BK
235-BK-18
1
235-BK-18
11
9
616-BU
8
7
6
430-BU-18
5
4
3
B
WASHER
7T-8890
ATCH
LOWER WASHER
7T-8890
200-BK
MOTOR
AIR CLEANER
SW
154-0498
COOLANT
LEVEL SW
096-0744
B
B
B
MOTOR
B
A
C
B
+B
200-BK
113-OR-18
GROUND
169-PK-18
SIGNAL
F774-WH-18
F773-OR-18
607-PK
200-BK
K848-WH-18
K844-GY-18
235-BK-18
E474-OR-18
K848-WH-18
K844-GY-18
200-BK
200-BK-18
A769-GY-18
235-BK-18
200-BK-18
E474-OR-18
A768-BU-18
K906-GN-18
322-GY
322-GY
105-RD
322-GY
K907-BU-18
235-BK-18
235-BK
123-WH-18
235-BK-18
200-BK-18
E472-GN-18
A588-GN
A770-PK-18
200-BK
616-BU
616-BU
200-BK
200-BK-18
763-BU-18
L969-WH-18
K906-GN-18
L968-OR-18
235-BK
235-BK-18
235-BK-18
135-BU
E472-GN-18
C569-YL
403-GN-18
495-GN-18
321-BR-18
200-BK
616-BU
320-RD-18
TRAVEL SPEED
SOL
121-1491
SWING
BRAKE SOL
121-1491
P
R
ALT
235-BK
B
235-BK-18
L973-GN-18
ATCH
WATER
SEPARATOR
LEVEL SENSOR
158-8662
B
2
1
235-BK-18
A755-PK-18
BK
607-PK
12V MEMORY
YL
A
495-GN-18
L12
JOYSTICK
PRESS. SW
167-3466
A
200-BK
2
M736-BU-18
M736-BU-18
1
M736-BU-18
307-OR
L11
ATCH
STRAIGHT TRAVEL
PRESS. SW
167-3466
A
1
2
L10
L8
L6
320-RD-18
L6
200-BK-14
175-RD-14
200-BK-14
200-BK-14
200-BK-14
CHASSIS
GROUND STRAP
7G-1060
ATCH
HAMMER
PRESS. SW
167-3466
(NOTE K)
TRAVEL LEFT
PRESS. SW
167-3466
24V MEMORY
24V IN
GND
A
A
TRAVEL RIGHT
PRESS. SW
167-3466
169-PK-18
169-PK-18
169-PK-18
326-RD
1
2
2
1
ATCH
MEDIUM LINE
PRESS. SW
167-3466
1
2
GND
12V OUT
A537-PK-18
A537-PK-18
200-BK
200-BK
32
A537-PK-18
487-OR-18
201-BK-18
M734-BR-18
BK
V
496-WH-18
646-RD-18
491-PK-18
235-BK-18
235-BK-18
A579-OR
530-OR-18
A586-OR-18
H473-BR-18
200-BK-14
235-BK-18
H466-BU-18
H465-GN-18
235-BK-18
235-BK-18
A584-BU-18
M741-GY-18
H465-GN-18
M742-PU-18
235-BK-18
H474-GN-18
H476-WH-18
200-BK-18
491-PK-18
H475-BU-18
200-BK-18
K871-WH-18
K872-OR-18
K872-OR-18
K871-WH-18
L973-GN-18
147-PU
200-BK-18
200-BK-14
410-WH-18
535-BU
152-BU
200-BK-14
33
34
1
320-RD-18
2
1
200-BK-18
235-BK-18
200-BK-18
200-BK-18
235-BK-18
L968-OR-18
L969-WH-18
A770-PK-18
200-BK-18
496-WH-18
200-BK-14
E554-PK-18
147-PU
586-BR-18
310-PU
169-PK-18
2
A
PLATFORM
A
A
NEUTRAL START
LIMIT SW
163-6785
ATCH 12V 7A
CONVERTER
167-3467
OPERATOR STATION
K907-BU-18
K906-GN-18
A768-BU-18
169-PK-18 F773-OR-18
F774-WH-18
607-PK
184-RD
184-RD
184-RD
184-RD
35
506-PU-18
201-BK-18
103-RD-18
A
K851-BU-18
K852-GN-18
326-RD
A
2
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
308-YL
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
200-BK-14
H465-GN-18
M742-PU-18
H466-BU-18
200-BK-14
M734-BR-18
H467-WH-18
184-RD
200-BK-14
893-GN-18
892-BR-18
M736-BU-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
308-YL
184-RD
A582-PU
A581-GN
E554-PK-18
200-BK-18
200-BK-18
A537-PK-18
586-BR-18
310-PU
169-PK-18
169-PK-18
307-OR
307-OR
410-WH-18
893-GN-18
892-BR-18
506-PU-18
A586-OR-18
501-GN-18
A580-BR
530-OR-18
M734-BR-18
152-BU
780-PU-18 578-BU
645-RD-18
129-BU
646-RD-18
235-BK-18
780-PU-18
780-PU-18
118-GY
150-OR-18
103-RD
200-BK
150-OR-18
150-OR-18
200-BK-18
K906-GN-18
200-BK-18
147-PU
200-BK-18
147-PU
K851-BU-18
K849-YL-18
200-BK-18
154-RD
151-GN
189-RD
A537-PK-18
200-BK-14
169-PK-18
K879-GN-18
K879-GN-18
K879-GN-18
M736-BU-18
A755-PK-18
F774-WH-18
F773-OR-18
K907-BU-18
113-OR-18
A770-PK-18
235-BK-18
169-PK-18
L969-WH-18
235-BK-18
C569-YL
C569-YL
A769-GY-18
200-BK
120-YL
135-BU
120-YL
H473-BR-18
L968-OR-18
A769-GY-18
A768-BU-18
200-BK-14
105-RD
308-YL
326-RD
307-OR
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
200-BK-18
E472-GN-18
K851-BU-18
235-BK-18
K852-GN-18
235-BK-18
235-BK-18
200-BK-14
H473-BR-18
235-BK-18
C569-YL
135-BU
E554-PK-18
179-BU
200-BK
200-BK
147-PU
C538-OR-18
C537-GN-18
200-BK
578-BU
K906-GN-18
1
ATCH LOWER
WIPER MOTOR
167-7079
410-WH-18
+
A755-PK-18
F774-WH-18
F773-OR-18
1
K907-BU-18
H475-BU-18
M736-BU-18
892-BR-18
893-GN-18
H467-WH-18
M734-BR-18
H466-BU-18
M742-PU-18
H465-GN-18
L969-WH-18
L968-OR-18
A769-GY-18
A768-BU-18
308-YL
179-BU
A756-BU-18
A757-GY-18
A758-BR-18
235-BK-18
506-PU-18
120-YL
A579-OR
615-YL
200-BK-18
607-PK
147-PU
607-PK
607-PK
578-BU
506-PU-18
L973-GN-18
L973-GN-18
310-PU
586-BR-18
L973-GN-18
M734-BR-18
M741-GY-18
892-BR-18
893-GN-18
H466-BU-18
410-WH-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
326-RD
A768-BU-18
A769-GY-18
L968-OR-18
L969-WH-18
K907-BU-18
F773-OR-18
F774-WH-18
A755-PK-18
M736-BU-18
K852-GN-18
K849-YL-18
H476-WH-18
H474-GN-18
H475-BU-18
E554-PK-18
607-PK
607-PK
607-PK
307-OR
A770-PK-18
169-PK-18
105-RD
189-RD
646-RD-18
151-GN
154-RD
200-BK
103-RD
2
S
646-RD-18
200-BK
129-BU
645-RD-18
152-BU
118-GY
147-PU
147-PU
2
147-PU
615-YL
129-BU
36
615-YL
200-BK
+1
-
189-RD
113-OR-18
103-RD
615-YL
154-RD
307-OR
151-GN
308-YL
105-RD
152-BU
123-WH-18
147-PU
118-GY
200-BK-18
113-OR-18
+B
GROUND
SIGNAL
YL-18
BR-18
BK-18
590-GY-18
B
615-YL
615-YL
A758-BR-18
C
A
A
C
A757-GY-18
189-RD
B
200-BK
BK-18
BR-18
YL-18
SIGNAL
GROUND
+B
1
2
615-YL
200-BK
615-YL
200-BK
A584-BU-18
200-BK-18
A756-BU-18
130-RD-14
200-BK-14
200-BK
200-BK-18
200-BK
200-BK
200-BK
200-BK
37
607-PK-18
607-PK-18
607-PK-18
A755-PK-18
200-BK
200-BK
200-BK
200-BK-18
200-BK-18
578-BU
A537-PK-18
147-PU
120-YL
2
1
179-BU
129-BU
MOTOR
PUMP DISCHARGE
PRESS SENSOR2
157-3182
PUMP DISCHARGE
PRESS SENSOR1
157-3182
120-YL
403-GN-18
ATCH
FLOW LIMIT
SOL
171-0188
(NOTE H)
POWER SHIFT
CONT SOL
111-9916
403-GN-18
892-BR-18
HYD OIL
FILTER SW
170-9419
HYD OIL
TEMP SENDER
4I-5394
HYD OIL
LEVEL SW
170-9376
1
200-BK-18
200-BK-18
2
1
2SIGNAL
191-WH-14
191-WH-14
191-WH-14
170-9295
GROUND
B
38
T~
2
1
575-YL-18
576-PK-18
200-BK-18
200-BK-18
5
4
3
2
1
308-YL
235-BK-18
200-BK-18
200-BK-18
200-BK-18
235-BK-18
123-WH-18
P
M
L972-BU-18
235-BK-18
HORN
7Y-3920
197-4290R H-12
B-2P 7Y-8216
116-0227N B-2
B-3
160-PU
149-RD
115-RD
6
200-BK-18
175-RD-14
645-RD-18
535-BU-18
535-BU-18
FUEL LEVEL
SENSOR
163-6700
2
646-RD-18
M 163-6750
167-3456L
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
200-BK
321-BR-18
F-1
D-6K 167-3527
167-3457J J-6
1
2
F-1H 163-6810
170-6828
780-PU-18
330-YL
607-PK
615-YL
M741-GY-18
780-PU-18
616-BU
645-RD-18
646-RD-18
892-BR-18
893-GN-18
235-BK-18
308-YL-18
130-RD-14
103-RD
175-RD-14
M741-GY-18
124-GN-14
191-WH-14
684-RD-18
124-GN-14
(NOTE A)
JJ
KK
GG
MM
LL
KK
JJ
C
M742-PU-18
150-OR-18
HH
39
GG
DD
EE
EE
DD
RELAY PANEL
C
C
C
B
ATCH
TRAVEL ALARM
3E-7738
BBB
CC
BB
B
U
AAA
150-OR-18
L14
E472-GN-18
K847-PU-18
L41
L19
C
C
C
K843-GN-18
E473-GY-18
607-PK
12
200-BK
235-BK-18
235-BK-18
E472-GN-18
200-BK-18
K906-GN-18
320-RD-18
320-RD-18
A587-YL
A587-YL
A587-YL
200-BK
210-BK
229-BK
135-BU
12
210-BK
ATCH
AUX HYD
PRESS. SW
167-3466
5
6
A770-PK-18
124-GN-14
135-BU
229-BK
210-BK
308-YL
308-YL
169-PK-18
11
308-YL
10
9
8
7
6
5
4
3
2
1
2
1
308-YL
320-RD-18
113-OR-18
123-WH-18
S ATCH
JOYSTICK
177-7712
SWITCH 2
L10
SWITCH 1
COMMON
PWM+
GND
+12V
D
D
D
D
HORN SW
128-2134
210-BK
1
2
229-BK
410-WH-18
M742-PU-18
K906-GN-18
229-BK
578-BU
135-BU
C569-YL
210-BK
403-GN-18
403-GN-18
124-GN-14
6
5
4
124-GN-14
123-WH-18
403-GN-18
403-GN-18
(NOTE A)
A
S
1
L12
2
3
4
L11
L10
L12
200-BK-14
175-RD-14
200-BK-14
OPERATOR STATION
7
8
9
10
11
12
M742-PU-18
5
6
12
E
E
E
E
E
E
E
E
E
11
E
10
+12V
3
H465-GN-18
12V 7A
ATCH 12V 7A
CONVERTER
167-3467
GND
PWM+
COMMON
G
12V OUT
GND
GND
24V IN
24V MEMORY
12V MEMORY
F-5F 163-6787
1 2
B
5
3
SWITCH 1
SWITCH 2
ATCH JOYSTICK
177-7711
9
2
1
8
J-12170-6929
3
4
114-RD
5
6
7
12
11
10
A
9
7
8
1
6
A
5
4
3
2
IND UNIT
163-6702
EE
ATCH SEAT WITH
SEAT HEATER
164-0505
GND
L. CHASSIS
BACKUP
EPR VALVE SW
163-6710
BACKUP
GOV SW
163-6711
ONE TOUCH
LOW IDLE SW
128-2134
S4
G-1
S3
S2
S1
COM
KEY SW
9G-7641
THROTTLE
POS SW
106-0107
R
C
S
B
OFF
ON
4
L46
ST
A
2
1
ATCH QUICK
COUPLER SW
7N-2353
4
3
1
2
CONSOLE(RH)
E
A
E
G
E
E
3
2 1
2
3
6
44
6
3
2
5
ATCH QUICK
COUPLER SOL
111-9961
L973-GN-18
200-BK
200-BK
1
40
41
607-PK-18
893-GN-18
J
J
892-BR-18
H465-GN-18
H467-WH-18
2
1
118-GY
152-BU
11
10
9
7
42
H467-WH-18
8
H467-WH-18
430-BU-18
129-BU
179-BU
120-YL
645-RD-18
147-PU
113-OR-18
169-PK-18
180-GN
103-RD
105-RD
110-RD
175-RD-14
L973-GN-18
578-BU
123-WH-18
330-YL
200-BK-18
WH/GN
229-BK-14
C569-YL-14
210-BK-14
135-BU-14
43
44
1
H466-BU-18
H466-BU-18
110-RD
189-RD
200-BK
2
K776-GN-18
308-YL
607-PK
WH/YL
K776-GN-18
L13
L12
2
L11
101-RD-4
112-PU-6
101-RD-6
109-RD-6
308-YL-18
H466-BU-18
235-BK-18
200-BK-14
506-PU-18
893-GN-18
1
6
5
4
3
2
6
2
1
3
200-BK-18
4
5
12
11
10
9
G976-BU-18
8
7
12
11
10
9
7
8
1
6
892-BR-18
5
4
3
5
645-RD-18
149-RD
616-BU
6
2
115-RD
615-YL
4
3
607-PK
2
1
160-PU
2
3
235-BK-18
4
147-PU
103-RD-18
120-YL
179-BU
129-BU
152-BU
118-GY
114-RD
322-GY
306-GN
1
C
C
113-OR-18
154-RD
307-OR
189-RD
151-GN
A588-GN
615-YL
115-RD
235-BK-18
200-BK-18
511-BR-18
508-PU-18
235-BK-18
403-GN-18
512-GN-18
509-WH-18
200-BK-18
175-RD-14
110-RD
START RELAY
125-1302
105-RD
103-RD
114-RD
115-RD
149-RD
160-PU
1
1
130-RD-14
M741-GY-18
H465-GN-18
616-BU
149-RD
646-RD-18
892-BR-18
893-GN-18
235-BK-18
1
2
(NOTE A)
BLOCK
121-1023
403-GN-18
308-YL-18
S
45
147-PU
412-BU-18
DIODE
121-1022
MAIN RELAY
165-4026
BACKUP
RESISTOR
102-8016
200-BK-18
KEY SW.(ON)
HEATER
CONT UNIT
104-3204
CHECK TERM.
RELAY
KEY SW.(START)
GND
INDICATOR
REGULATOR
TEMP.
C
T
HEATER
RELAY
9X-8124
C
C
403-GN-18
(NOTE A)
C538-OR-18
ACTION ALARM
132-1829
F F
CDL -
200-BK-18
19
18
17
16
ATCH
BOOM LAMP
153-2521
RELAY PANEL
C537-GN-18
F
W. INT (6)
FF
F
15
6
3
4
5
12
11
7
13
8
14
10
TRAVEL MODE IND 1
TRAVEL MODE SW
20
7
6
5
1
TRAVEL MODE IND 2
1
2
7
6
5
4
3
8
1
2
4
3
2
9
1
2
F
INT (3)
RISE. S
WIPER CUT
LOW
WA+
ACC
WASH
GND
STOP
REV
W. CW
W. CCW
HH
ENG OIL SW
5I-8005
INT (6)
-
+
8
A/C SW PANEL
157-3209
3
F
9
4
11
ATCH UNDER
WINDOW LIMIT SW
129-6466
AEC MODE IND
8
AEC MODE SW
5
ALARM CANCEL IND
ALARM CANCEL SW
F
CAB
WINDOW LIMIT SW
117-6306
F
S
F
6
+B
L. CHASSIS
L. BOOM
WASH
W. LOW
W. INT (3)
200-BK-14
BK
YL
WH/BU
GND
175-RD-14
11
10
9
GND
LIGHT
2
1
8
3
4
5
6
7
45
44
43
42
41
40
39
38
37
36
35
34
33
54
A588-GN
151-GN
189-RD
CDL +
53
+B
+12V
ACC
WIPER
MOTOR
161-3667
WIPER CONT
155-7042
F
7
10
ATCH
CAB LAMP
167-3441
32
L
MONITOR
157-3198
SWITCH PANEL
163-6701
A/C PHOTO
SENSOR
167-7083
31
12
13
SERVICE
METER
6T-7337
MOTOR
2
1
30
29
52
W
NN
L
C
F
CIGAR
LIGHTER
9W-0335
F
CAB
C
1
2
W
1
2
ATCH
FINE SWING
SOL
107-7056
1
51
28
B
C
A
CABLE AS.
877-YL-4
183-1053
ATCH LOWER
WIPER SW
163-6718
ATCH LOWER
WASHER SW
163-6719
ATCH SEAT
HEATER SW
163-6721
F FF
L8
L6
ATCH
HEATER SW PANEL
176-2004
L3
200-BK-18
646-RD-18
307-OR
154-RD
27
163-6752
L7
L7
306-GN
26
L5
L5
L4
L3
ATCH
CAB LAMP
167-3441
112-PU-6
1
12V 7A X 2 (NOTE D)
CONSOLE(LH)
200-BK-18
200-BK-18
B
C
A
S
200-BK-18
(NOTE J)
(NOTE D)
ATCH
ANTENNA
167-3492
F
F
512-GN-18
511-BR-18
509-WH-18
508-PU-18
200-BK-18
113-OR-18
3
9
L
10
2
5
1
4
8
7
6
C566-PK-18
C560-OR-18
ATCH
12V 7A
SOCKET
121-0987
F
K
K
K
ATCH
CONVERTER
134-1346
TO RADIO
512-GN-18
509-WH-18
511-BR-18
508-PU-18
A513-RD-18
8
6
7
4
2
5
1
3
592-BU-18
GND
IGN
592-BU-18
A513-RD-18
200-BK-18
12V
MEM
24V
113-OR-18
103-RD-18
200-BK-18
(NOTE F)
ATCH
12V 7A
SOCKET
121-0987
(NOTE D)
(NOTE E)
403-GN-18
A-4
L19
ATCH STEM 1
CONT SOL (B)
111-9916
(NOTE F)
1
487-OR-18
L19
U 161-3088
.
.
NOTE D: USE WITH 12V 7A X 2 CONVERTER.
NOTE F: USE WITH CONFIG.14.
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY ON AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 320C U EXCAVATOR
193-3499 HE00.
NOTE G: NOT USE WITH HEATER UNIT.
NOTE B: NOT USED ON THIS MACHINE.
NOTE A: WIRE PAIRS MUST BE TWISTED AT LEAST
1 TURN PER 25MM.
NOTE C: USE WITH COLD WEATHER.
NOTE E: USE WITH CONFIG.3.
NOTE K: USE WITH CONFIG.5.
NOTE J: USE WITH CAB GUARD LAMP.
NOTE H: USE WITH CONFIG.3 AND 14.
167-3473T H-6
B-7S
LL
101-RD-6
C
(NOTE B)
330-YL
330-YL
320-RD-18
322-GY
330-YL
C
330-YL
306-GN
114-RD
309-GY-18
K776-GN-18
25
24
23
22
50
49
14
13
12
15
684-RD-18
L
F
NN
P
184-RD
191-WH-14
684-RD-18
16
200-BK-18
2
S
46
K849-YL-18
K851-BU-18
K852-GN-18
235-BK-18
H473-BR-18
L9
191-WH-14
DIODE
121-1022
17
F
168-RD-10
A623-BU-18
2
47
2
1
MM
170-9393
RELAY PANEL
30A
5A
C
B
CC
GROUND STRAP
132-1806
REFUELING PUMP
30A
(NOTE A)
235-BK-18
PP
HHPP
K852-GN-18
15A
K852-GN-18
QUICK COUPLER
K851-BU-18
K851-BU-18
ALT REGULATOR
5A
5A
235-BK-18
L973-GN-18
ALT BREAKER
9S-0174
10A
10A
K849-YL-18
M
M
K849-YL-18
K852-GN-18
CHASSIS
LAMP
153-2523
20
K851-BU-18
K849-YL-18
ATCH STEM 3
CONT SOL (A)
111-9916
(NOTE F)
ATCH STEM 3
CONT SOL (B)
111-9916
(NOTE F)
1
2
S S
2
1
ATCH STEM 2
CONT SOL (A)
111-9916
(NOTE F)
ATCH STEM 2
CONT SOL (B)
111-9916
(NOTE F)
1
60A
19
2
S
48
18
49
50
DIODE
121-1022
51
H473-BR-18
5A
H476-WH-18
H475-BU-18
H474-GN-18
10A
15A
M741-GY-18
H467-WH-18
H466-BU-18
H465-GN-18
15A
M742-PU-18
403-GN-18
52
53
S
2
1
ATCH STEM 1
CONT SOL (A)
111-9916
(NOTE F)
235-BK-18
403-GN-18
235-BK-18
308-YL
54
492-GY-18
E554-PK-18
405-GY-18
C468-BU-18
F773-OR-18
F774-WH-18
A761-PU-18
M736-BU-18
788-YL-18
403-GN-18
A762-PU-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
M737-WH-18
M738-OR-18
M739-YL-18
M739-YL-18
M739-YL-18
M739-YL-18
403-GN-18
235-BK-18
235-BK-18
5A
FUSE
5A 141-2759
10A 113-8490
15A 113-8491
30A 124-3548
412-BU-18
147-PU
G976-BU-18
506-PU-18
578-BU
FUSE BASE
183-1000
5A
430-BU-18
200-BK
184-RD
L975-PK-18
309-GY-18
C
200-BK-14
POWER WINDOW
892-BR-18
893-GN-18
616-BU
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
200-BK-18
235-BK-18
235-BK-18
309-GY-18
235-BK-18
235-BK-18
309-GY-18
309-GY-18
5A
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
A588-GN
322-GY
607-PK
ATCH
BOOM LAMP
153-2521
HORN
7Y-3919
L973-GN-18
200-BK-18
200-BK
616-BU
200-BK
322-GY
780-PU-18
200-BK-18
H473-BR-18
M742-PU-18
M741-GY-18
M740-PK-18
M739-YL-18
M738-OR-18
M737-WH-18
H476-WH-18
H475-BU-18
H474-GN-18
H467-WH-18
H466-BU-18
H465-GN-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
CHASSIS
309-GY-18
403-GN-18
235-BK-18
235-BK-18
M739-YL-18
M738-OR-18
M739-YL-18
M737-WH-18
235-BK-18
235-BK-18
GOVERNOR COMMAND
SENSOR RET
GOVERNOR FEEDBACK
TRAVEL ALARM CANCEL IND
AEC MODE IND
OPTION CONTROL PRV
TRAVEL MODE IND
FLOW LIMIT PRESS PRV
FINE SWING SW
POWER SHIFT CONTROL PRV
SWING BRAKE CANCEL SOL
TRAVEL ALARM
ALTERNATOR R TERM.
COOLANT TEMP SENSOR
HYD OIL TEMP SENSOR
FUEL LEVEL
PRIMARY NFC PRESS PRV
PRV RETURN (2)
SPEED SENSOR (-)
SPEED SENSOR (+)
PRV RETURN (1)
+12V SUPPLY
PUMP DISCHARGE(2) PRESS SENSOR
O.L.W.D. PRESS SENSOR
BACKUP SW
OPTION PWM IN (1)
ACTION ALARM
TRAVEL SPEED CHANGE SOL
PRV RETURN (3)
PRV RETURN (4)
FAN MOTOR CONTROL PRV
OPTION CONTROL PRV
HEATER RELAY/STARTER RELAY
TRAVEL STRAIGHT SOL
OPTION VOLTAGE SW (1)
ANALOG SENSOR RETURN
PUMP DISCHARGE(1) PRESS SENSOR
FREE SWING SW
321-BR-18
M736-BU-18
403-GN-18
V
184-RD
184-RD
235-BK
235-BK
K904-GN-18
K907-BU-18
495-GN-18
491-PK-18
ATT SOL
10A
492-GY-18
A762-PU-18
788-YL-18
10A
308-YL
10A
487-OR-18
C468-BU-18
L975-PK-18
5A
496-WH-18
A758-BR-18
405-GY-18
15A
430-BU-18
412-BU-18
A757-GY-18
A756-BU-18
A755-PK-18
L972-BU-18
893-GN-18
892-BR-18
10A
10A
M734-BR-18
H476-WH-18
M741-GY-18
M742-PU-18
H473-BR-18
H474-GN-18
H475-BU-18
K851-BU-18
10A
CAB LAMP
BOOM LAMP
K852-GN-18
K850-BR-18
CHASSIS LAMP
10A
10A
LOWER WIPER/WASHER
WIPER/WASHER
CIGAR LIGHTER
K849-YL-18
12V 7A CONVERTOR 1
12V 7A CONVERTOR 2
15A
15A
10A
15A
10A
10A
G976-BU-18
10A
SW PANEL/RADIO
BACKUP/MONITOR CONT
10A
10A
A/C
SEAT HEATER
KEY SW
TIMER RELAY
ATCH V CONT
A/C BLOWER
E/P CONT
AUX CKT
DOME LAMP/MEMORY
HORN
10A
L969-WH-18
5A
C
C
C
DISCONNECT SW.
7N-0718
7N-0719(NOTE C)
C
C
C
C
NEUTRAL START RELAY
161-3128
HYD LOCK SOL RELAY
161-3128
T967-YL-18
A761-PU-18
L968-OR-18
410-WH-18
M736-BU-18
C
L
S
P
R
OUT
GND
IN
+B
2
4
3
GND
TIMER RELAY
163-6703
J
H
G
F
A
E
21
48
D
763-BU-18
C
B
1
10A
M739-YL-18
CAB LAMP RELAY
161-3128
H467-WH-18
HORN RELAY
161-3128
ET CONN
CONN 1
M738-OR-18
M737-WH-18
H466-BU-18
SWITCH RETURN
AUTO LUB FAILURE
ATCH STEM4 SWING CANCEL
+B
GND
OPTION SW
GND
ONE TOUCH LOW IDLE SW
CHASSIS LAMP RELAY
161-3128
KEY SW ON
OPTION SW
AIR HEATER CONTROLLER
BOOM LAMP RELAY
161-3128
+B
CAPSULE FILTER PLUGGED
ATCH FINE
SWING CONT SW
163-6722
ATCH STEM1 SWING CANCEL
SPECIAL FILTER PLUGGED
ENG OIL PRESS SW
WATER SEPARATOR LEVEL SW
AIR CLEANER PLUGGED
HYD OIL LEVEL SW
ENG OIL LEVEL SW
COOLANT LEVEL SW
THROTTLE POSITION 4
THROTTLE POSITION 3
THROTTLE POSITION 2
THROTTLE POSITION 1
TRAVEL ALARM CANCEL SW
START CONT
RELAY
094-2080
FUEL PRIMARY FILTER PLUGGED
FUEL SECONDARY FILTER PLUGGED
AEC MODE SW
TRAVEL MODE SW
TRAVEL RIGHT PRESS SW
TRAVEL LEFT PRESS SW
JOYSTICK PRESS SW
CAT DATA LINK (+)
CAT DATA LINK (-)
ATCH STEM2 SWING CANCEL
OVER LOAD ALARM CANCEL SW
ATCH STEM3 SWING CANCEL
CREEPER TRAVEL FUNCTION SW
TRAVEL STRAIGHT PRESS SW
M740-PK-18
H465-GN-18
L973-GN-18
J-12
235-BK-18
AA
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
10A
M740-PK-18
L972-BU-18
F
F
OPERATOR STATION
47
46
AB
(NOTE A)
(NOTE B)
A
B
C
D
E
F
9
8
G
H
J
2
11
70 4
2
1 11
B
C
D
E
A
F
G
H
J
1
6 5
11
10
9
23
8
7
6 5 4
1
3 2
(NOTE B)
CONN 2
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 7
CONN 8
CONN 9
CONN 9
CONN 10
CONN 11
CONN 11
CONN 12
CONN 13
CONN 14
CONN 15
CONN 16
CONN 17
CONN 18
CONN 19
CONN 20
CONN 21
CONN 22
CONN 23
CONN 24
CONN 25
CONN 26
CONN 27
CONN 28
CONN 29
L42
L43
L44
L46
L46
L43
L7
L32
L3
L3
L43
L43
L44
L19
L44
L47
L23
L35
L36
L35
L35
235-BK-18
130-RD-14
130-RD-14
K843-GN-18
130-RD-14
130-RD-14
K844-GY-18
K848-WH-18
308-YL
E476-PU-18
151-GN
K860-BU-18
K858-YL-18
K863-OR-18
K857-WH-18
K862-GY-18
E474-OR-18
K856-PU-18
K861-GN-18
K859-BR-18
E473-GY-18
K868-BR-18
K869-BU-18
E472-GN-18
E475-PK-18
L36
C538-OR-18
C537-GN-18
235-BK-18
235-BK-18
235-BK-14
235-BK-18
235-BK-18
235-BK-14
235-BK-14
235-BK-14
235-BK-18