©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR5456
December 2001
330C Excavator
Electrical System
CAP1-UP
CGZ1-UP
1010
66
Machine Harness Connector And Component Locations
AA
BB
CC
DD
GG
33
33
66
1
44
1111
5
55
1010
1717
FF
1212
1313
11
1111
1515
1414
HH
1313
1212
EE
44
77
7
88
88
88
99
99
99
1717
1515
2424
2424
2525
2525
2828
2828
3636
3636
3737
3737
3838
3838
3939
3939
4040
4040
4141
4141
4242
4242
4343
4343
4444
4444
4545
4545
4646
4646
4747
4747
4848
4848
4949
4949
5050
5050
1818
1818
1919
1919
22
22
1414
1616
1616
2626
2626
2727
2727
2929
2929
2121
2121
3030
3030
3131
3131
3333
3333
3434
3434
3232
3232
3535
3535
2020
2020
5151
5151
5252
5252
2222
2222
5353
5353
5454
5454
2323
2323
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Air Heater F-11 H Sensor - Intake Air Temp B-11 H
Alternator F-11 4 Sensor - Oil Pressure C-11 H
Atch A/C Unit D-5 28 Sensor - Oil Temp B-11 49
Atch Battery I-12 6 Sensor - Pump Discharge Press 1 A-11 F
Atch Converter D-5 A Sensor - Pump Discharge Press 2 A-10 F
Atch Converter 12V 7A I-5 D Sensor - Turb Outlet Pressure B-11 45
Atch Heater Unit D-5 28 Service Meter F-2 A
Atch Joystick (LH) I-3 C Solenoid - A/C Clutch E-11 50
Atch Joystick (RH) H-1 B Solenoid - Atch 1Way/2Way Control B-5 35
Atch Seat With Seat Heater H-2 14 Solenoid - Atch Boom Check 1 C-4 D
Battery I-12 6 Solenoid - Atch Boom Check 2 B-4 D
Block As. G-8 E Solenoid - Atch Boom Down Line Cut Off A-9 D
Breaker - Alternator H-12 E Solenoid - Atch Flow Limit A-8 F
Cigar Lighter F-2 A Solenoid - Atch Primary NFC A-8 F
Connector HEP A-11 48 Solenoid - Atch Pump 1 Flow Control A-12 F
Control - Atch Valve C-8 2 Solenoid - Atch Pump 2 Flow Control A-12 F
Control - Engine F-12 H Solenoid - Atch Quick Coupler A-11 F
Control - Engine/Pump E-8 1 Solenoid - Atch Relief 1 B-5 31
Control - Wiper F-2 A Solenoid - Atch Relief 2 B-5 32
Dual Cam Speed/Timing (Crank) B-11 H Solenoid - Atch Relief Check 1 B-5 33
Dual Cam Speed/Timing (Run) B-11 H Solenoid - Atch Relief Check 2 B-5 34
Engine Speed Pickup E-11 H Solenoid - Atch Separate Valve B-9 G
Fault Alarm F-3 A Solenoid - Atch Stem 1 Control (A) A-10 J
Fuse H-12 E Solenoid - Atch Stem 1 Control (B) A-10 J
Horn C-2 7 Solenoid - Atch Stem 2 Control (A) B-10 J
Indicator Unit H-1 B Solenoid - Atch Stem 2 Control (B) B-10 J
Lamp - Atch Boom C-2 8 Solenoid - Atch Stem 3 Control (A) B-10 J
Lamp - Atch Cab G-1 9 Solenoid - Atch Stem 3 Control (B) B-10 J
Lamp - Chassis C-2 10 Solenoid - Atch Stem 4 Control (A) C-9 J
Lamp - Dome G-2 A Solenoid - Atch Stem 4 Control (B) C-9 J
Monitor F-1 A Solenoid - Hyd Lock C-9 G
Motor - Fuel Pump I-7 46 Solenoid - Injector 1 C-10 36
Motor - Starter E-11 12 Solenoid - Injector 2 C-10 37
Motor - Washer H-7 13 Solenoid - Injector 3 C-10 38
Motor - Wiper F-1 A Solenoid - Injector 4 C-10 39
Panel - A/C Switch D-1 A Solenoid - Injector 5 C-10 40
Panel - Atch Heater Switch D-1 A Solenoid - Injector 6 C-10 41
Pump - Atch Refueling B-2 21 Solenoid - Power Shift Control A-11 F
Relay - Air Heater F-11 H Solenoid - Swing Brake C-9 G
Relay - Atch Beacon G-11 E Solenoid - Travel Speed C-9 G
Relay - Atch Boom Float Disable I-9 E Solenoid - Travel Straight C-9 G
Relay - Atch Refueling Power B-2 26 Switch - Air Cleaner H-7 24
Relay - Atch Refueling Start B-3 29 Switch - Atch Boom Down Pressure A-9 D
Relay - Atch Refueling Stop B-3 27 Switch - Atch OLWD Alarm Cancel D-3 A
Relay - Atch Smart Boom Up/Down 1 I-9 E Switch - Atch Quick Coupler G-3 B
Relay - Atch Smart Boom Up/Down 2 I-8 E Switch - Atch Refueling A-4 20
Relay - Boom Lamp I-11 E Switch - Atch Refueling Start (NO) B-3 18
Relay - Cab Lamp H-11 E Switch - Atch Refueling Stop (NC) B-3 19
Relay - Chassis Lamp H-11 E Switch - Atch Seat Heater D-2 A
Relay - Fuel Pump G-11 E Switch - Atch Smart Boom Select D-4 A
Relay - Horn H-11 E Switch - Atch Straght Travel Pressure I-1 D
Relay - Hyd Lock H-11 E Switch - Atch Up/Down Pressure A-9 D
Relay - Main H-9 E Switch - Backup EPR Valve H-2 B
Relay - Neutral Start G-11 E Switch - Backup Gov H-2 B
Relay - Start H-8 E Switch - Coolant Level I-7 25
Relay - Timer I-12 E Switch - Disconnect G-12 E
Resistor I-9 E Switch - Engine Oil Level E-11 H
Sender - Hyd Oil Temp A-5 F Switch - Horn I-3 C
Sensor - A/C Photo F-1 A Switch - Hyd Oil Filter A-5 F
Sensor - Atch Negative Control Press 1 A-12 F Switch - Hyd Oil Level A-6 F
Sensor - Atch Negative Control Press 2 A-12 F Switch - Joystick Pressure I-2 D
Sensor - Atch OLWD Pressure C-2 21 Switch - Key H-1 B
Sensor - Atch Squeeze Pressure B-5 16 Switch - Neutral Start Limit I-3 D
Sensor - Atch Tool Pressure B-9 G Switch - One Touch Low Idle H-1 B
Sensor - Atch Water Separator Level I-7 15 Switch - Throttle Pos H-1 B
Sensor - Atmostpheric Pressure C-11 44 Switch - Travel Left Pressure I-2 D
Sensor - Engine Coolant Temp B-11 H Switch - Travel Right Pressure I-2 D
Sensor - Fuel Level A-4 17 Switch - Window Limit G-1 A
Sensor - Fuel Pressure B-11 H Switch Panel E-1 A
Sensor - HEUI Rail Pressure B-11 42 TDC Probe B-11 H
Machine locations are repeated for components located close together.
A = Located inside of cab.
F Located inside of pump compartment
B = Located inside of right console. G = Located around control valve
C = Located inside of left console. H = Behind engine
D = Located under platform. J = Solenoid block inside of pump compartment
E = Located around relay panel.
Wire Description
Wire
Numbe
r
Wire
Color
Description
Wire
Numbe
r
Wire
Color
Description
Power Circuits
Lighting Circuits
101 RD
Bat +
607 PK
Chassis Lamp Relay Output
103 RD
Dome Lamp / Memory
615 YL
Cab Lamp
105 RD
Key Sw
616 BU
Boom Lamp
109 RD
Alternator B+ Term
638 WH
Atch Beacon Relay Output
110 RD
Timer Relay
645 RD
Boom Lamp (Sw Panel To Boom Lamp Relay)
112 PU
Main Relay
646 RD
Cab Lamp (Sw Panel To Cab Lamp Relay)
113 OR
Sw Panel / Radio
A623 BU
Chassis Lamp Relay To Diode
114 RD
Horn Control Circuits
115 RD
Cab Lamp Relay
763 BU
Travel Speed Change Sol
118 GY
Wiper/Washer
780 PU
Atch Quick Coupler Sw
119 PK
Not used
788 YL
Spped Sensor (-)
120 YL
12V 10A Converter 1
A746 PK
Boost Pressure
123 WH
Seat Heater
A747 GY
ATM Pressure
124 GN
A/C
A755 PK
Throttle Position 1
129 BU
Cigar Lighter
A756 BU
Throttle Position 2
130 RD
Engine Control
A757 GY
Throttle Position 3
135 BU
12V Memory Out
A758 BR
Throttle Position 4
143 BR
Atch Boom Float Disable Relay
A762 PU
Speed Sensor (+)
147 PU
Atch Sol
A768 BU
Power Shift Cont Sol
149 RD
Boom Lamp
A769 GY
Power Shift Cont Sol
150 OR
Quick Coupler
A770 PK
Backup Resistor To Backup EPR Valve Sw
151 GN
Hyd Lock Sol Relay
E795 YL
Oil Temp
152 BU
Lower Wiper / Washer
F773 OR
Backup Gov Sw A/D To Eng Gov Actuator (Accel)
154 RD
Neutral Start Relay
F774 WH
Backup Gov Sw A/D To Eng Gov Actuator (Decel)
160 PU
Chassis Lamp
H705 BR
Fuel Pump Relay
168 RD
Aux Ckt
H792 BR
Atch Mart Boom Up/Down Relay 2
169 PK
Backup / Monitor Control
J702 BK
Air Heater Relay
175 RD
A/C Blower
M734 BR
Travel Mode Sw
179 BU
12V 10A Converter 2
M736 BU
Governor Command
180 GN
Aux Ckt
M737 WH
Flow Limit Pressure PRV
184 RD
E/P Control
M738 OR
Primary NFC Pressure PRV
188 WH
Fuel Pump
M739 YL
PRV Return (2)
189 RD
Timer Relay Out
M740 PK
Travel Straight Sol
196 BU
INSP Lamp Socket
M741 GY
Travel Alarm Cancel Sw
199 OR
Beacon Lamp
M742 PU
AEC Mode Sw
Ground Circuits
M743 GN
Atch Boom Float Disable Relay
200 BK
Chassis Ground
M744 PK
Atch Smart Boom Select Sw
201 BK
Monitor Ground
M745 BU
Atch Boom Check Sol 1
210 BK
Converter 1 Ground
M746 YL
Atch Smart Boom Up/Down Relay 1
229 BK
Converter 2 Ground
M747 PU
Atch Smart Boom Sw To Relay
235 BK
E/P Control Ground
M748 OR
Atch Smart Boom Up/Down Relay Output
A278 BK
Fuel Pump Ground
M749 WH
Atch Up/Down Pressure Sw
Basic Machine Circuits
892 BR
Cat Data Link -
304 WH
Start Relay To Motor Starter
893 GN
Cat Data Link +
306 GN
Neutral Start Relay To Start Relay
A893 OR
Fuel Pump
307 OR
Key Sw To Neutral Start Relay
F889 WH
Gov Command
308 YL
Key Sw ON
G826 BR
Oil Pressure
310 PU
Start Aid Sw To Start Aid Sol
G827 BU
Oil Presure -
320 RD
Horn Sw To Horn Relay
G828 WH
5+ From Engine Control To Sensors
321 BR
Travel Alarm
G829 GN
Sensor Common
322 GY
Horn Relay To Horns
G831 GY
Oil Temp +5
323 WH
Atch Refueling Pump
G833 PK
Sensor Common
325 PK
Atch Refueling Stop Sw
G849 BR
HEUI Rail Pressure
326 RD
Key Sw Off
G850 BU
Air Heater Relay
329 YL
Atch Refueling Stop Rly To Refueling Power Rly
G854 PK
Conn HEP
365 YL
Atch Refueling Stop Sw To Refueling Relays
G855 PU
Conn HEP
Monitoring Circuits
G856 WH
TDC Probe
403 GN
Alt R Term To Service Meter And E/P Cont
G857 YL
TDC Probe
405 GN
Eng Oil Pressure Sw
K843 GN
Right Joystick Sw 1
405 GY
Low Oil Pressure Output
K844 GY
Left Joystick Sw 1
410 WH
Fault Alarm
K847 PU
Right Joystick Sw 2
412 BU
Coolant Level Sw
K848 WH
Left Joystick Sw 1
430 BU
Air Cleaner Sw
K849 YL
Atch Stem 1
487 OR
Hyd Oil Filter Sw
K850 BR
Atch Stem 2
491 PK
Hyd Oil Temp Sensor
K851 BU
Atch Stem 3
495 GN
Fuel Level
K852 GN
Atch Stem 4
496 WH
Hyd Oil Level Sw
K853 GY
Atch Pump1 Flow Control Sol
A499 BU
Hyd Tank Pressure Sw
K854 OR
Atch Pump2 Flow Control Sol
C468 BU
Eng Oil Level Sw
K855 PK
Atch Separate Valve Sol
E469 YL
Tool Pressure Sensor
K856 PU
Atch Stem1 Control Sol (A)
E470 BR
Neg Cont Pressure Sensor 1
K857 WH
Atch Stem2 Control Sol (A)
E471 BU
Neg Cont Pressure Sensor 2
K858 YL
Atch Stem3 Control Sol (A)
E472 GN
Rotate Sw (CW)
K859 BR
Atch Stem4 Control Sol (A)
E473 GY
Atch Stem 1 Modulation
K860 BU
Atch Stem1 Control Sol (B)
E474 OR
Atch Stem 2 Modulation
K861 GN
Atch Stem2 Control Sol (B)
E475 PK
Atch Stem 3 Modulation
K862 GY
Atch Stem3 Control Sol (B)
E476 PU
Atch Stem 4 Modulation
K863 OR
Atch Stem4 Control Sol (B)
E480 WH
Over Load Alarm Cancel Sw
K864 PK
Atch Relief 1 Sol
H446 PK
OLWD Pressure Sensor
K865 PU
Atch Relief 2 Sol
H465 GN
Travel Alarm Cancel Indicator
K866 WH
Atch 1 way / 2 way Control Sol
H466 BU
AEC Mode Indicator
K867 YL
PRV Return (1)
H467 WH
Travel Mode Indicator
K868 BR
Sol Gnd 2
H473 BR
Straight Travel Pressure Sw
K869 BU
Sol Gnd 3
H474 GN
Travel Right Pressure Sw
K870 GN
Sol Gnd 4
H475 BU
Travel Left Pressure Sw
K876 BR
Atch Relief Check 1 Sol
H476 WH
Joystick Pressure Sw
K877 BU
Atch Relief Check 2 Sol
Accessory Circuits
994 GY
Oil Pressure
501 GN
Wiper Low
995 BU
Coolant Temp
506 PU
Wiper Cont To Washer Motor
998 BR
Backup Gov Sw
508 PU
LH Speaker (+)
C967 BU
Intake Air Temp
509 WH
LH Speaker (-)
C987 RD
Power To Atch Valve Control
511 BR
RH Speaker (+)
C991 PK
Fuel Pressure
512 GN
RH Speaker (-)
E963 BK
Dual Cam Speed/Timing (Run)
530 OR
Wash Signal (Sw Panel To Wiper Cont)
E964 WH
Dual Cam Speed/Timing (Run)
535 BU
Lower Wiper Motor (+)
E965 BU
Dual Cam Speed/Timing (Crank)
575 YL
Atch Lower Wiper Motor (S)
E966 YL
Dual Cam Speed/Timing (Crank)
576 PK
Atch Lower Wiper Motor (+1)
G976 BU
Water Separator Level Sw
578 BU
Atch Lower Washer Motor
K904 GN
Pump Discharge 1 Pressure Sensor
586 BR
Not Used
K906 GN
Swing Brake Sol
590 GY
Wiper INT (3) (Sw Panel To Wiper Cont)
K907 BU
Swing Brake Cancel Sol
592 BU
12V Atch Converter To Radio
L968 OR
PRV Return (1)
A513 RD
MEM Atch Converter To Radio
L969 WH
PS Control PRV
A537 PK
Seat With Seat Heater
L972 BU
One Touch Low Idle Sw
A579 OR
Wiper CCW (Wiper Cont To Wiper Motor)
L973 GN
Free Swing
A580 BR
Wiper CW (Wiper Cont To Wiper Motor)
L976 GN
Atch Refueling Start Sw
A581 GN
Reverse (Wiper Cont To Wiper Motor)
M906 BU
Stem 1 (Squeeze) Pressure Sensor
A582 PU
Stop (Wiper Cont To Wiper Motor)
T951 YL
Injector 1 Sol
A584 BU
Wiper Cut (Wiper Cont To Window Limit Sw)
T952 BR
Injector 2 Sol
A586 OR
Wiper INT (6) (Sw Panel To Wiper Cont)
T953 BU
Injector 3 Sol
A588 GN
Hyd Lock Sol Relay To Sol
T954 GY
Injector 4 Sol
C537 GN
A/C Photo Sensor (Y/W)To Sw Panel A/C + Heater
T955 GN
Injector 5 Sol
C538 OR
A/C Photo Sensor (Y/G)To Sw Panel A/C + Heater
T956 GY
Injector 6 Sol
C560 OR
Not Used
T957 PU
Injector 1 Sol
C566 PK
Not Used
T958 YL
Injector 2 Sol
C569 YL
Converter To 12V 10A Socket
T9v
tor 3 Sol
E554 PK
A/C Unit To A/C Clutch Sol
T960 BU
Injector 4 Sol
T961 GN
Injector 5 Sol
T962 WH
Injector 6 Sol
T967 YL
Pump Discharge 2 Pressure Sensor
8630 BU
Atch Beacon Relay
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 I-12 E
CONN 2 C-11 H
CONN 3 G-10 E
CONN 4 G-10 E
CONN 5 G-9 E
CONN 6 D-9 51
CONN 7 D-8 52
CONN 8 G-8 E
CONN 9 G-8 E
CONN 10 G-8 E
CONN 11 H-6 13
CONN 12 H-6 13
CONN 13 H-6 13
CONN 14 E-6 2
CONN 15 A-6 F
CONN 16 F-5 D
CONN 17 I-5 D
CONN 18 F-4 A
CONN 19 F-4 A
CONN 20 F-4 A
CONN 21 E-4 A
CONN 22 E-4 A
CONN 23 D-4 A
CONN 24 I-3 D
CONN 25 I-3 D
CONN 26 I-3 D
CONN 27 H-3 D
CONN 28 H-3 D
CONN 29 H-3 D
CONN 30 H-3 D
CONN 31 G-3 D
CONN 32 C-3 22
CONN 33 C-3 53
CONN 34 C-3 54
CONN 35 C-2 23
CONN 36 H-1 B
CONN 37 F-1 A
The connectors shown in this chart are for harness to harness
connectors.
Connectors that join a harness to a component are
Code Description of Problems
1301 Engine oil pressure is too low.
1302 Engine coolant temperature is too high.
1303 Hydraulic oil temperature is too high.
1304 Air filter is clogged.
1305 Battery voltage is not normal.
2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.
2202 Governor actuator feedback sensor circuit is shorted to body ground.
2301 Governor actuator feedback signal is not stable.
2302 Governor actuator feedback signal deviates.
2303 Governor actuator does not move.
2304 Calibration data error.
3201 Monitor RAM is not normal.
4101 Electric power supply to the controller is too much (43 volts).
4102 Over-current in proportional reducing valve.
4103 Proportional reducing valve circuit is open.
4104 Monitor power supply (digital output) over current.
4105 Over-current in digital output (trenching solenoid).
4106 Over-current in digital output (fine control solenoid).
4107 Over-current in digital output (travel speed change solenoid).
4108 Over-current in digital output (travel alarm).
4109 Spare solenoid 1 (digital output) over current.
410A Over-current in digital output (swing brake solenoid).
410B Spare solenoid 2 (digital output) over current.
4201 Engine speed is not normal.
4202 Engine coolant temperature sensor is shorted to body ground.
4203 Hydraulic oil temperature sensor is shorted to body ground.
4204 PWM sensor of pump delivery pressure is shorted to body ground.
4205 Spare PWM sensor 1 is shorted to body ground.
4206 Spare PWM sensor 2 is shorted to body ground.
4207 PWM sensor of pump delivery pressure is open in circuit.
420A Fuel sensor is shorted to body ground
420B Fuel sensor is open or shorted to battery voltage.
420C Electric power supply is to low (below 23 volts).
420D Electric power supply is to high (above 32 volts).
420E Engine speed dial is not in one of the 10 specified positions.
4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).
4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).
4303 Engine stalls.
A201 Monitor communication is not normal.
A202 Monitor takes too much time to respond to controller's signal.
A203 Communication is abnormal in controller.
A20D ADEM communication disconnect.
Real Time Error Codes
Failure Mode Identifiers (FMI)¹
FMI No. Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
154-0498 Air Cleaner 635 mm H2O — Normally Open
167-3466
Boom Down Pressure (ATCH)
Joystick Pressure
Travel Left Pressure
Travel Right Pressure
Straight Travel Pressure (ATCH)
490 ± 49 kPa
(71 ± 7 psi)
290 kPa MIN
(42 psi MIN)
Normally Open
202-9002 Up/Down Pressure (ATCH)
13789 kPa MAX
(1998 psi MAX)
10335 ± 689 kPa
(1499 ± 100 psi)
Normally Closed
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
102-8016 Resistor 47 ± 2.4
111-9916 Solenoid-
Separate Valve (ATCH)
Stem 4 Control (A) (ATCH)
Stem 4 Control (B) (ATCH)
Stem 1 Control (A) (ATCH)
Stem 1 Control (B) (ATCH)
Stem 2 Control (A) (ATCH)
Stem 2 Control (B) (ATCH)
Stem 3 Control (A) (ATCH)
Stem 3 Control (B) (ATCH)
Power Shift Control
11.7 ±1.2
112-0090 Solenoid-
Relief 1 (ATCH)
Relief 2 (ATCH)
19.5 ± 2
121-1491 Solenoid-
Travel Straight
Swing Brake
Travel Speed
Hyd Lock
32.0 ± 3.2
171-0114 Solenoid-
Primary NFC (ATCH)
Pump 1 Flow Control (ATCH)
Pump 2 Flow Control (ATCH)
11.5 ± 0.5
171-0188 Solenoid- Flow Limit (ATCH) 11.5 ± 0.5
4I-5394 Sender- Hyd Oil Temp 6134 to 7496
¹ At room temperature unless otherwise noted.
See the Component Location Chart.
generally located at or near the component.
Related Electrical Service Manuals
Form Number
Alternator: 9W-3043
SENR3685
Electric Starting Motor: 6V-5539
Consist: 106-8554
SENR3581
Consist: 6V-5582
SENR4975
Engine/Pump Control:157-3165
RENR3814
Starting and Charging:
RENR3814
Title
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) For
Engine/Pump Control (MID² No. 69)
CID Component
91 Throttle Position Signal
96 Fuel Level Sensor
110 Engine Coolant Temperature Sensor
167 Alternator
168 Voltage Of The Power Supply (keyswitch)
190 Speed Sensor
254 Electronic Control Module (ECM)
271 Action Alarm
286 Signal For Engine Oil Pressure Decrease
374 Swing Brake Solenoid
376 Travel Alarm
581
Proportional Reducing Valve For The Power Shift
Pressure
586 Engine Speed Dial
588
Abnormal Communication Between Controller And
Monitor
590 Engine Control
598 Travel Speed Solenoid
600 Hydraulic Oil Temperature Sensor
1161 Pump Delivery Pressure Sensor (Drive)
1162 Pump Delivery Pressure Sensor 2 (Idle)
1525 Straight Travel Solenoid
Component Identifiers (CID¹) For
En
g
ine Control
(
MID² No. 24
)
CID Component
1 Injector Solenoid 1st Cylinder
2 Injector Solenoid 2nd Cylinder
3 Injector Solenoid 3rd Cylinder
4 Injector Solenoid 4th Cylinder
5 Injector Solenoid 5th Cylinder
6 Injector Solenoid 6th Cylinder
41 8V + Power Supply
42 Injector Actuation Control Valve
94 Fuel Pressure Sensor
100 Engine Oil Pressure Sensor
164 Injector Pressure Sensor
172 Inlet Air Temperature Sensor
175 Engine Oil Temperature Sensor
253 Personality Module
261 Timing Sensor Calibration
262 Analog Sensor Power Supply Voltage
273 Turbocharger Compressor Outlet Pressure Sensor
274 Atmospheric Pressure Sensor
342 Speed Timing Sensor
617 Air Heater Relay
1627 Fuel Pump Relay
Module Identifiers (MID)
MID No. Module
69 Engine/Pump Controller
6A Tool Controller
1E Monitor Panel
24 Engine Controller
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.
=
J
J
F
A
B
C
E
200-BK
638-WH
8630-BU-18
L68
L68
L67 L67
L67
L67
L66
L66
L66
L65 L65
L65
L64
L64
L63
L63
L62
L62
L62
L61
L61
L61
L61
L59 L59 L59
L58
L59 L59
L59
L58 L58
L58L58
L56 L56
L56
L55
L55 L55
L55
L54
L54L54L54
L53
L54
L53
L53
L53
L52 L52
L52L52
L51L51L51
L51
L51
L51L51
L51
L50
L50 L50
L50
L49
L49
L49 L49
L49
L48
L48 L48
L47
L47 L47
L47L47L47
L46
L46 L46 L46
L45
L45
L45
L45
L44
L44L44L44L44
L44
200-BK-18200-BK-18
L43
L43
L43 L43 L43
L42 L42 L42
L42 L42
105-RD
L41
L41
L41
L39
L39
L39
L39L39
L37L37
L37L37L37
L37
L36
L36
L36L36L36
L35
L35L35L35
L35
L34
L34L34L34L34
L34
L33
L33L33
L33 L33
L33
L32L32L32
L32 L32 L32
L30
L30 L30L30L30
L29
L29
L29
L29L29
L28L28L28L28
L27L27
L26
L26L26
L25L25
L25
L25L25L25L25L25
L25
L24
L24L24L24
L24L24
L23
L23 L23 L23
L23
L22
L22 L22L22
L22
L21 L21 L21L21
L21
L20L20L20L20
L19L19
L19 L19 L19
L19
L18
L18
L18
L18 L18
L17
L17
L17
L17 L17
L17 L17
L16
L16
L16
L16
L16
L16L16
L15
L15
L15
L15 L15
L15
L14
L14
L14 L14
L13
L13 L13
L13
L13
L13 L13
L12
L36
L12L12
L11
L11L11L11
L10
L9
L10
L10
L9
L9
L8
L8
L8
201-BK-18
L6L6
L6L6
L5L5
L5L5L5
L4
L4 L4L4
L3
L3
L3 L3
L2
L2L2
L2
L2
L2
L1
607-PK
130-RD-14
200-BK200-BK
114-RD
189-RD
199-OR
L1 L1
188-WH-18
200-BK
199-OR
168-RD-10
109-RD-4
101-RD-4
101-RD-4
109-RD-4
199-OR
168-RD-10
199-OR
160-PU
188-WH-18
188-WH-18
235-BK-18
308-YL
200-BK
308-YL
200-BK
229-BK-14
T962-WH-18
T956-GY-18
T961-GN-18
T955-GN-18
T960-BU-18
T954-GY-18
T959-BR-18
T953-BU-18
T958-YL-18
T952-BR-18
T957-PU-18
T951-YL-18
K860-BU-18
K860-BU-18
235-BK-18
308-YL
308-YL
308-YL
308-YL
200-BK
200-BK
235-BK-14
147-PU
235-BK-14
780-PU-18
235-BK-14
235-BK-14
308-YL
308-YL
308-YL
308-YL
308-YL
308-YL
105-RD
200-BK-14
200-BK-14
200-BK-18
200-BK
200-BK
200-BK
179-BU
120-YL
200-BK-14
200-BK-14
169-PK-18
615-YL
K870-GN-18
L11L11
200-BK-1 8
F774-WH-18
F773-OR-18
235-BK-18
235-BK-18
A768-BU-18
A769-GY-18
615-YL
200-BK-14
200-BK-14
200-BK-14
200-BK
201-BK-18
200-BK-14
200-BK
200-BK-18
200-BK
200-BK
200-BK-14
G829-GN-18
G829-GN-18
G829-GN-18
K867-YL-18
K867-YL-18
CAT DATA LINK + 8
9CAT DATA LINK -
22
23
OIL PRESSURE
IGNITION KEY SW 70
66THROTTLE
OIL PRESSURE
-B 65
63-B
-B 61
53+B
+B 52
48+B
THROTTLE BACKUP (ACCEL)
THROTTLE BACKUP (DECEL)
LOW OIL PRESSURE OUTPUT 28
235-BK-18
A
69
68
2
1
2
2
1
INJECTOR
SOL 1
1
2
2
1
1
2
2
1
INJECTOR
SOL 2
INJECTOR
SOL 3
INJECTOR
SOL 4
INJECTOR
SOL 5
INJECTOR
SOL 6
C
SB
RELAY PANEL
SENSOR COMMON
+5V
+5V
SENSOR COMMON
SENSOR COMMON
+5V
+5V
SENSOR COMMON
SENSOR COMMON
+5V
SENSOR SIGNAL
OIL TEMP
ATMOSPHERIC
PRESSURE
FUEL
PRESSURE
OIL
PRESSURE
HEUI RAIL
PRESSURE
ENGINE
COOLANT TEMP
COMMON
IAPCV
CONNECTOR
HEP
B
TT
199-OR
G828-WH-18
G828-WH-18
200-BK
638-WH
308-YL
235-BK-18
308-YL
8630-BU-18
9
6
2
3
4
8
12
10
7
5
11
8630-BU-18
8
7
12
3
5
2
4
6
10
9
11
4
3
2
179-BU
129-BU
123-WH-18
120-YL
124-GN-14
113-OR-18
308-YL
152-BU
147-PU
607-PK
103-RD
175-RD-14
307-OR
199-OR
169-PK-18
645-RD-18
119-PK-18
A770-PK-18
615-YL
151-GN
154-RD
105-RD
189-RD
646-RD-18
199-OR
320-RD-18
C
B
A
K867-YL-18
K854-OR-18
K867-YL-18
K853-GY-18
E471-BU-18
308-YL
235-BK-18
E470-BR-18
308-YL
AJAJ
K869-BU-18
4
E471-BU-18
3
2
308-YL
K854-OR-18
K853-GY-18
K867-YL-18
E471-BU-18
E470-BR-18
308-YL
M743-GN-18
E476-PU-18
E475-PK-18
235-BK-18
235-BK-18
E472-GN-18
E472-GN-18
3
5
6
4
2
2
4
6
K869-BU-18
C468-BU-18
200-BK-18
788-YL-18
325-PK-18
M739-YL-18
M737-WH-18
M738-OR-18
491-PK-18
200-BK-18
780-PU-18
A768-BU-18
A769-GY-18
K904-GN-18
147-P U
487-OR-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
321-BR-18
235-BK-18
496-WH-18
235-BK-18
A499-BU-18
T967-YL-18
487-OR-18
147-PU
K904-GN-18
A769-GY-18
A768-BU-18
200-BK-4
200-BK-4
109-RD-4
H705-BR-18
325-PK-18
199-OR
M739-YL-18
235-BK-18
A499-BU-18
496-WH-18
495-GN-18
147-PU
M738-OR-18
M737-WH-18
A769-GY-18
A768-BU-18
780-PU-18
K904-GN-18
T967-YL-18
491-PK-18
487-OR-18
1
8
7
12
3
5
2
4
6
10
9
11
638-WH
235-BK-18
200-BK-18
A278-BK-18
101-RD-4
109-RD-4
A588-GN
322-GY
607-PK
616-BU
130-RD-14
101-RD-4
168-RD-10
304-WH-8
H705-BR-18
235-BK-18
K854-OR-18
K853-GY-18
200-BK
175-RD-14
8630-BU-18
645-RD-18
615-YL
200-BK
308-YL
189-RD
320-RD-18
H705-BR-18
307-OR
103-RD
607-PK
175-RD-14
103-RD
638-WH
199-OR
A588-GN
322-GY
8630-BU-18
151-GN
154-RD
147-PU
A588-GN
184-RD
A893-OR-18
229-BK-18H705-BR-18
188-WH-18
BOOST PRESSURE
HEUI RAIL PRESSURE
OIL TEMP
CRANK
RUN
G855-PU-18G855-PU-18
G854-PK-18G854-PK-18
G857-YL-18G857-YL-18
G856-WH-18G856-WH-18
E966-YL-18E966-YL-18
E965-BU-18E965-BU-18
E964-WH-18E964-WH-18
E963-BK-18E963-BK-18
C967-BU-18C967-BU-18
G833-PK-18
995-BU-18995-BU-18
G831-GY-18
G828-WH-18
G828-WH-18
G828-WH-18
G829-GN-18
G829-GN-18
G829-GN-18
G828-WH-18
G829-GN-18
A746-PK-18
G849-BR-18
C991-PK-18
A746-PK-18
G849-BR-18
C991-PK-18
G828-WH-18
G829-GN-18
A747-GY-18
G826-BR-18
G827-BU-18
AIR HEATER RELAY G850-BU-18
J702-BK-18
T945-GY-18
T946-PU-18
T947-YL-18
T948-BR-18
T949-BU-18
T950-GN-18
T951-YL-18
T957-PU-18
T952-BR-18
T958-YL-18
T953-BU-18
T959-BR-18
T954-GY-18
T960-BU-18
T955-GN-18
T961-GN-18
T956-GY-18
T962-WH-18
T945-GY-18
T946-PU-18
T947-YL-18
T948-BR-18
T949-BU-18
T950-GN-18
T951-YL-18
T957-PU-18
T952-BR-18
T958-YL-18
K867-YL-18
K867-YL-18
235-BK-18 E470-BR-18
308-YL
K868-BR-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
B
506-PU-18
200-BK-18
151-GN
306-GN
229-BK-18
M739-YL-18
A770-PK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
T953-BU-18
T959-BR-18
T954-GY-18
T960-BU-18
T955-GN-18
T961-GN-18
T956-GY-18
T962-WH-18 13
14
15
16
17
6
5
4
3
T962-WH-18
T961-GN-18
T960-BU-18
T959-BR-18
T958-YL-18
T957-PU-18
T956-GY-18
T955-GN-18
T954-GY-18
T953-BU-18
T952-BR-18
T951-YL-18
10
11
12
7
8
9
G850-BU-18
J702-BK-18
ATCH BEACON RELAY
161-3128
C
F889-WH-18F889-WH-18
780-PU-18
200-BK-18
491-PK-18
235-BK-18
E554-PK-18
WH-18
A/C CLUTCH
SOL
113-3499
(NOTE C)
ENG SPEED
PICKUP
6V-2455
B
2
2
ENG OIL
LEVEL SW
111-4759
B
2BK-18
B
MOTOR
CHASSIS
STARTER
MOTOR
6V-5539
304-WH-8
G S
MTR BAT
101-RD-4
RD-00
RD-00
GROUND STRAP
140-0860
AA
DD(NOTE A)
B
B
M738-OR-18
M737-WH-18
M739-YL-18
235-BK-18
A499-BU-18
235-BK-18
578-BU
496-WH-18
235-BK-18
321-BR-18
235-BK-18
235-BK-18
403-GN-18
E554-PK-18
C468-BU-18
788-YL-18
304-WH-8
101-RD-4
A588-GN
B
C
C
C
C
PP CLLJJ HH
BB
CC
SB
994-GY-18
308-YL
118-GY
G826-BR-18
C
B
A
B
HYD TANK PRESS SW
B
147-PU
ENG/PUMP CONT
157-3165
B
235-BK-18
B
A
B
C
AJ
C
AJ
AJ
Y
Y
200-BK-14
200-BK-14
200-BK-14
200-BK
200-BK
200-BK
A
B
A
169-PK-18
J
J A
G827-BU-18
308-YL
235-BK-18
235-BK-18
B
235-BK-18
A770-PK-18
150-OR-18
105-RD
F
F
MAIN RELA Y
165-402 6
FA
F
A
235-BK-18
235-BK-18
B A
235-BK-18
G831-GY-18
235-BK-18
M737-WH-18
B
S
235-BK-18
200-BK-18
B
B
AJ
DDS
A
K843-GN-18
S
235-BK-18
E
E
A
A
A
E
E
E
E
200-BK
235-BK-18
E
E
3
2
12
1110
9
8
7
6
54
3
2
235-BK-18
T
F
F
F
F
F
CAB
F
235-BK-18
235-BK-18
235-BK-18
ATCH HEATER
SW PANEL
176-2005
780-PU-18
ATCH QUICK
COUPLER SOL
000-0000
V
B
994-GY-18
129-BU
152-BU
235-BK-18
124-GN-14
120-YL
151-GN
169-PK-18
646-RD-18
304-WH-8
A770-PK-18
179-BU
147-PU
168-RD-10
K906-GN-18
A768-BU-18
A769-GY-18
F774-WH-18
F773-OR-18
E554-PK-18
147-PU
235-BK-18
A747-GY-18
235-BK-14
2
F774-WH-18
F773-OR-18
E554-PK-18
K906-GN-18
A768-BU-18
A769-GY-18
487-OR-18
496-WH-18
405-GY-18
C468-BU-18
763-BU-18
788-YL-18
A762-PU-18
M740-PK-18
M737-WH-18
M738-OR-18
235-BK-18
A278-BK-18
A893-OR-18
235-BK-18
763-BU-18
K906-GN-18
M740-PK-18
308-YL
F889-WH-18
405-GY-18
F773-OR-18
F774-WH-18
893-GN-18
892-BR-18
998-BR-18
H705-BR-18
130-RD-14
235-BK-18
101-RD-4
200-BK-18
G833-PK-18
2
307-OR
M739-YL-18
495-GN-18
K904-GN-18
491-PK-18
T967-YL-18
G833-PK-18
SENSOR SIGNAL
E473-GY-18
SENSOR SIGNAL
SENSOR SIGNAL
WH
YL
YL
YL
GN
GN
GN
OR
OR
OR
OR
OR
BK
BK
SENSOR SIGNAL
WH
18
235-BK-18
150-OR-18
113-OR-18
235-BK-18
780-PU-18
L973-GN
ATCH RELIEF
CHECK 2 SOL
201-9367
(NOTE E)
AJ
E472-GN-18
229-BK-14
304-WH-8
64
62
60
ATCH SEPARATE
VALVE SOL
111-9916
(NOTE B)
ATCH STEM 4
CONT SOL(A)
111-9916
(NOTE B)
ATCH STEM 3
CONT SOL(A)
111-9916
(NOTE E)
ATCH STEM 2
CONT SOL(A)
111-991 6
(NOTE D)
ATCH STEM 1
CONT SOL(A)
111-9916
(NOTE E)
ATCH STEM 1
CONT SOL(B)
111-9916
(NOTE E)
ATCH STEM 2
CONT SOL(B)
111-9916
(NOTE D)
59
58
YL
235-BK-18
57
308-YL
E469-YL-18
56
GN
C
K868-BR-18
55
K856-PU-18
K857-WH-18
54
K868-BR-18
K868-BR-18
K868-BR-18
2
22
G833-PK-18
K868-BR-18
2
K868-BR-18
K868-BR-18
K861-GN-18
K860-BU-18
2
1
K862-GY-18
GN
K863-OR-18
ATCH STEM 3
CONT SOL(B)
111-9916
(NOTE E)
K869-BU-18
K869-BU-18
51
50
2
YL
ATCH STEM 4
CONT SOL(B )
111-9916
(NOTE B)
2
1
K867-YL-18
1
2
2
K869-BU-18
K869-BU-18
K869-BU-18
K859-BR-18
K858-YL-18
A
B
C
GROUND
+B
SIGNAL
ATCH TOOL
PRESS. SENSOR
157-3182
(NOTE B)
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
47
K867-YL-18
K867-YL-18
E470-BR-18
E471-BU-18
K853-GY-18
K854-OR-18
K866-WH-18
K864-PK-18
235-BK-14
K865-PU-18
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
308-YL
2
K843-GN-18
AJ
UU 188-9865 C-10
235-BK-18
A537-PK-18
E474-OR-18
E473-GY-18
E476-PU-18
E475-PK-18
E472-GN-18
L13
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 SNSR 2
NEG CONT PRESS SNSR 1
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
ATCH STEM4 NEUTRAL
ATCH STEM3 NEUTRAL
ATCH STEM3 CONT PRV(B)
ATCH STEM2 CONT PRV(A)
RS232 TX
RS232 RX
ATCH STEM4 CONT PRV(B)
ATCH STEM3 CONT PRV(A)
ATCH STEM2 NEUTRAL
ATCH STEM1 NEUTRAL
ATCH STEM1 CONT PRV(B)
SEPARATE VALVE PRV
SNSR GND
RS422 TX -
STEM1(SQUEEZE) PRESS SNSR
K867-YL-18
RS422 TX +
RS422 RX -
RS422 RX +
GND
GND
CDL(-)
CDL(+ )
K867-YL-18
46
LEFT JOYSTICK
998-BR-18
RIGHT JOYSTICK
K852-GN-18
KEY SW
INTER LOCK
51
50
49
48
47
45
46
45
E795-YL-18
40
39
38
37
30
44
29
27
GN
YL
18
43
17
8
26
7
35
40
6
16
42
5
54
44
34
31
25
38
31
4
5
6
11
15
17
20
27
21
24
31
32
K849-YL-18
235-BK-1436
K849-YL-18
K852-GN-18
K851-BU-18
K850-BR-18 ATCH STEM 2
ATCH STEM 3
ATCH STEM 4
41
28
42
ATCH STEM 1
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
20
19
10
9
22
21
12
11
4
23
53
13
1
235-BK-14
235-BK-14
+B
34
42
43
44
49
50
51
52
8
40
39
30
29
12
37
41
36
35
34
30
16
7
9
10
18
19
35
25
28
53
48
38
27
45
47
1
2
3
22
41
26
36
37
46
54
13
14
23
33
25
K877-BU-18
K876-BR-18
LEFT JOYSTICK
RIGHT JOYSTICK
K848-WH-18
K844-GY-18
K843-GN-18
308-YL
308-YL308-YL
151-GN151-GN
C987-RD-14C987-RD-14
C987-RD-14
5
3
235-BK-14
235-BK-18
CHASSIS
K869-BU-18
+B
BK-00
BK-00
DISCONNECT SW
7N-0718
7N-0719(NOTE A)
GROUND STRAP
132-1806
K851-BU-18
K851-BU-18
K852-GN-18
K852-GN-18
K849-YL-18
K849-YL-18
S
ATCH
MEDIUM LINE
PRESS. SW
167-3466
(NOTE B)
A
235-BK-18
K906-GN-18
A588-GN
763-BU-18
235-BK-18
M740-PK-18
235-BK-18
235-BK-18
235-BK-18
A762-PU-18
200-BK-18
200-BK-18
DUAL CAM
SPEED/TIMING
S/T -
235-BK-18
S/T +
235-BK-18
G833-PK-18
K854-OR-18
K853-GY-18
308-YL
K867-YL-18
K867-YL-18
788-YL-18
E471-BU-18
E470-BR-18
C468-BU-18
E554-PK-18
308-YL
308-YL
2
6
308-YL
235-BK-18
235-BK-18
235-BK-18
403-GN-18
ATCH PUMP 2
FLOW CONT SOL
171-0114
(NOTE B)
1
2
M740-PK-18
235-BK-18
C
B
BR-18
A
YL-18
BK-18
GROUND
SIGNAL
+B
BK-18
ATCH PUMP 1
FLOW CONT SOL
171-0114
(NOTE B)
ATCH NEGATIVE
CONT PRESS.
SENSOR 1
157-3128
(NOTE B)
2
1
SIGNAL
+B
GROUND
C
B
A
BR-18
ATCH NEGATIVE
CONT PRESS.
SENSOR 2
157-3128
(NOTE B)
SENSOR COMMON
235-BK-18
+5V
892-BR-18
K906-GN-18
893-GN-18
235-BK-18
K866-WH-18
K865-PU-18
K870-GN-18
ATCH 1WAY/2WAY
CONT SOL
201-9367
(NOTE E)
ATCH RELIEF
CHECK 1 SOL
201-9367
(NOTE E)
ATCH
RELIEF 2 SOL
112-0090
(NOTE E)
ATCH
RELIEF 1 SOL
112-0090
(NOTE E)
K870-GN-18
S
2
K864-PK-18
2
1
S
M906-BU-18
S
2
2
1
S
235-BK-18
235-BK-18
235-BK-18
308-YL
S
2
F889-WH-18
CHASSIS
ATCH
FINE SWING SOL
107-7056
(NOTE B)
2
200-BK
200-BK
L973-GN
763-BU-18
109-RD-4
A762-PU-18
A762-PU-18
A
A F
K
K
308-YL
V
AJ
2
496-WH-18
322-GY
616-BU
325-PK-18
L973-GN
168-RD-10
607-PK
322-GY
616-BU
322-GY
616-BU
325-PK-18
168-RD-10
607-PK
308-YL
200-BK-14
200-BK-10
200-BK
200-BK
200-BK
199-OR
200-BK-14
998-BR-18
308-YL
168-RD-18
329-YL-18
NOTE E: USE WITH CONFIG. 14.
2
123-WH-18
DIODE
197-4385
147-PU 147-PU
L69
L69
L69
L60
L60
L60
L57L57
L57
L40
L40L40
L7
L7
L7
L38L38
L38
L38
L38 L38
L31
L31 L31L31
M745-BU-18
101-RD-4
AN
AN
AN
506-PU-18
578-BU
320-RD-18
147-PU
147-PU
147-PU
607-PK
ATCH BATTERY
3T-5760
(NOTE A)
BATTERY
3T-5760
ATCH WTR
SEPARATOR
LEVEL SNSR
174-9570
WASHER
7T-8890
ACL SW
154-0498
SENSOR SIGNAL
TURB
OUTLET
PRESSURE
TDC PROBE
TDC +
TDC -
USER DEFINED SHUTDOWN
229-BK-14
L13
229-BK-14
229-BK-14
ENG CONT GND
2
A
B
49
C
2 SENSOR COMMON
SENSOR SIGNAL
412-BU-18
235-BK-18
578-BU
235-BK-18 506-PU-18
430-BU-18
147-PU
G976-BU-18
578-BU
430-BU-18
G976-BU-18
147-PU
M743-GN-18
200-BK-18
235-BK-18
G976-BU-18
147-PU
430-BU-18
235-BK-18
506-PU-18
578-BU
ATCH LOWER
WASHER
7T-8890
(NOTE B)
COOLANT
LEVEL SW
096-0744
32
26
33
67
29
130-RD-14
616-BU
235-BK-14
893-GN-18
892-BR-18
607-PK
105-RD
615-YL
80A
200-BK-18
ALT BREAKER
171-2210
200-BK-18
147-PU
4
OPTION V SW(2)
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
M738-OR-18
2
5
3
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-1 8
308-YL
M736-BU-18
L973-GNL973-GN
24
21
L973-G N
TRAVEL SP CHG SOL
M738-OR-18
892-BR-18
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
YL
42
41
GN
OR
32
51
50
49
GN
YL
43
33
E795-YL-18
34
48
2
S/T +
54
S/T -
DUAL CAM
SPEED/TIMING
46
31
28
52
5
12
11
26
18
3
45
39
412-BU-18
30
20
17
21
10
22
40
37
13
9
8
1
36
29
25
16
SW RETURN
CREEPER TRAVEL FUNCTION SW
OVER LOAD ALM CANCEL SW
A499-BU-18
OPTION SW
AUTO LUB FAILURE
SPL FLTR PLUGGED
F SEC FLTR PLUGGED
F PRIM FLTR PLUGGED
49
6
44
34
35
15
3
25
24
17
16
37
36
27
26
7
8
150-OR-18
5
52
51
HYD. OIL LEVEL SW 496-WH-18
ENG OIL PRESS SW
ENG OIL LEVEL SW
41 405-GY-18
M737-WH-18
C468-BU-18
M740-PK-18
235-BK
235-BK
23KEY SW ON
GND
GND
ACL PLUGGED
WTR SEPARATOR LEVEL SW
CAPSULE FLTR PLUGGED
COOL. LEVEL SW
20
308-YL
235-BK
19
18
M743-GN-18
17
235-BK
31
42
47
430-BU-18
G976-BU-18
487-OR-18
412-BU-18
308-YL
118-GY
1
2
6
4
16
3
5
15
14
13
147-PU
235-BK-18
12
11
H446-PK-18
10
7
6
5
4
3
2
1
SHARED WITH TDC CAL
39
NOT AVAILABLE-USED ON J2
NOT AVAILABLE-USED ON J2
ANALOG SENSOR POWER
K852-GN-18
H446-PK-18
ENG BLOCK
K851-BU-18
235-BK-18
STRAP
K849-YL-18
SIGNAL
GROUND
184-RD
AIR HEATER RELAY
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
235-BK-14
308-YL
893-GN-18
892-BR-18
M743-GN-18
M744-PK-18
K850-BR-18
AIR HEATER CONTROLLER
M746-YL-18
+B
+B
+B
184-RD
184-RD
A537-PK-18
ATCH STEM 2 SWING CANCEL
CAT DATA LINK(-)
CAT DATA LINK(+)
K850-BR-18
BK-18
892-BR-18
BR-18
893-GN-18
AA BB
BB
H473-BR-18
CC
TRAVEL STR PRESS SW 53
EE
ATCH STEM 1 SWING CANCEL
ATCH STEM 3 SWING CANCEL
ATCH STEM 4 SWING CANCEL
DD
EE
FF
C
M747-PU-18
K849-YL-18
YL-18
K851-BU-18
184-RD
HH KK
KK
CC
K852-GN-18
184-RD
184-RD
FF
JJ
C
C
C
JOYSTICK PRESS SW
TRAVEL LEFT PRESS SW
TRAVEL RIGHT PRESS SW
ONE TOUCH LO IDEL SW
THRT POS 1
THRT POS 2
MM
THRT POS 3
THRT POS 4
C
TRAVEL ALM CANCEL SW
AEC MODE SW
TRAVEL MODE SW
200-BK-18
H476-WH-18
H475-BU-18
H474-GN-18
L972-BU-18
A755-PK-18
A756-BU-18
B
A757-GY-18
A588-GN
A758-BR-18
M741-GY-18
M742-PU-18
M734-BR-18
B
YL
GN
101-RD-4
YL
GN
ATM PRESSURE
235-BK-18
19
68
55
67
54
47
39
46
38
45
S
S
S
37
44
36
2
6
47
44
35
S
S
66
SHARED WITH TDC CAL
65
29
28
21
20
9
12
41
235-BK-18
56
23
15
3
24
14
34
COOLANT TEMP
24
14
THROTTLE RETURN
19
7
4
S
UUUUUU
4
42
UUUU
10
2
13
16
5
15
11
17
6
27
7
40
308-YL
30
31
33
25
18
1
8
UU
43
32
50
51
52
35
INTAKE AIR TEMP
SENSOR SIGNAL
53
SENSOR COMMON
57
49
UU
2
308-YL
235-BK-18
38
32
E470-BR-18
40
50
TT
S
54
14
4
2
48
S
13
S
S
18
1
C
58
OIL PRESSURE
FUEL PRESSURE
63
64
TDC PROBE 22
23TDC PROBE
INTAKE AIR TEMP
RUN
69
70
235-BK-18
CONN HEP 61
62CONN HEP
43
CRANK
CRANK 59
60
200-BK-18
C
RUN
NN
33
LL
26
28
45
46
29
30
39
11
9
10
MM
19
20
22
12
21
48
T967-YL-18
H476-WH-18
H475-BU-18
H474-GN-18
L972-BU-18
A755-PK-18
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
B
147-PU
B
OIL TEMP
B
B
B
SIGNAL
GROUND
A
B
AC
B
C
B
GROUND
199-OR
235-BK-18
WIRE AS .
183-4878
AIR HEATER
235-BK-18
B
M736-BU-18
235-BK-18
235-BK-18
235-BK-14
+B
SIGNAL
2
2
PUMP DISCHARGE
PRESS. SENSOR 2
157-3182
PUMP DISCHARGE
PRESS. SENSOR 1
157-3182 ATCH
PRIMARY
NFC SOL
171-0114
(NOTE B)
ATCH
FLOW LIMIT
SOL
171-0188
(NOTE D)
POWER SHIFT
CONT SOL
111-9916
235-BK-18
235-BK-14
235-BK-18
235-BK-18
308-YL
235-BK-14
235-BK-18
E472-GN-18
E472-GN-18
K848-WH-18
E476-PU-18
E475-PK-18
K844-GY-18
E474-OR-18
ATCH LEFT
FOOT PEDAL
(NOTE B)
235-BK-18
200-BK-18
235-BK-18
E472-GN-18
E472-GN-18
F889-WH-18
E472-GN-18
K843-GN-18
E473-GY-18
E472-GN-18
235-BK-18
M740-PK-18
322-GY
403-GN-18
ATCH RIGHT
FOOT PEDAL
(NOTE B)
235-BK-18
235-BK-18
E472-GN-18
F889-WH-18
E473-GY-18
K843-GN-18
235-BK-18
200-BK-18
E472-GN-18
E472-GN-18
235-BK-18
235-BK-18
E475-PK-18
607-PK
E554-PK-18
175-RD-14
A499-BU-18
124-GN-14
200-BK-14
200-BK-14
2
6
5
3
4
THROTTLE POWER
235-BK-14
ANALOG SENSOR RETURN
B
B
308-YL
BR
235-BK-18
G
ENG CONT
157-3165
R/L
R
780-PU-18
F889-WH-18
ATCH
HEATER UNIT
164-0490
A/C UNIT
161-3779
200-BK-14
E554-PK-18
K868-BR-18
E480-WH-18
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
ATCH
VALVE CONT
H466-BU-18
235-BK-18
E476-PU-18
K849-YL-18
235-BK-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
H474-GN-18
H475-BU-18
H476-WH-18
K852-GN-18
K861-GN-18
2
235-BK-18
H473-BR-18
39
38
37
54
27
E480-WH-18
26
25
28
52
50
51
53
40
229-BK-14
41
49
21
17
M736-BU-18
16
15
19
20
1
2
F889-WH-18
33
18
29
30
K856-PU-18
42
43
44
48
47
46
8
9
M748-OR-18
10
14
13
12
11
7
235-BK-18
998-BR-18
22
35
998-BR-18
34
3
2
36
23
K862-GY-18
K857-WH-18
A499-BU-18
24
32
4
6
5
K858-YL-18
K860-BU-18
C
31
45
235-BK-18
1
496-WH-18
A
C
B
308-YL
B
405-GN-18
998-BR-18
780-PU-18
998-BR-18
ENG CONT
607-PK
175-RD-14
175-RD-14
124-GN-14
124-GN-14
130-RD-14
607-PK
607-PK607-PK
308-YL
308-YL308-YL
147-PU
645-RD-18
103-RD
152-BU
129-BU
113-OR-18
646-RD-18
118-GY
615-YL
123-WH-18
E480-WH-18
150-OR-18
105-RD
307-OR
A770-PK-18
169-PK-18
169-PK-18169-PK-18
189-RD
151-GN
154-RD
320-RD-18
120-YL
179-BU
K851-BU-18
L973-GN
8630-BU-18
199-OR
403-GN-18
506-PU-18
235-BK-18
321-BR-18
A
780-PU-18
645-RD-18
GROUND
578-BU
2
SS AJ
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
A499-BU-18
130-RD-14
147-PU
L973-GN
L973-GN
103-RD
152-BU
129-BU
113-OR-18
M745-BU-18
646-RD-18
S
235-BK-18
H792-BR-18
118-GY
615-YL
123-WH-18
607-PK
169-PK-18
307-OR
575-YL-18
A537-PK-18
200-BK-14
200-BK-14
607-PK
307-OR
307-OR
307-OR
307-OR
780-PU-18
135-BU
210-B K
C569-YL
229-BK
575-YL-18
535-BU
576-PK-18
200-BK-18
K876-BR-18
200-BK-18
200-BK-18
M747-PU-18
200-BK
S
S
S
535-BU
119-PK-18
ATCH
TRAVEL ALARM
3E-7738
(NOTE B)
AJ
2
576-PK-18
M746-YL-18
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
M744-PK-18
103-RD
130-RD-14
A537-PK-18
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
235-BK-18
235-BK-18
M743-GN-18
235-BK-18
235-BK-14
607-PK-18
607-PK-18
607-PK
576-PK-18
123-WH-18
310-PU
307-O R
147-PU
200-BK-14
200-BK-14
S
200-BK-18
200-BK-18
607-PK-18
586-BR
130-RD-14
H792-BR-18
M748-OR-18
M749-WH-18
130-RD-14
130-RD-14
ATCH O.L.W.D.
PRESS. SENSOR
157-3182
H446-PK-18
147-PU
511-BR-18
512-GN-18
147-PU
147-PU
147-PU
FUEL PUMP
188-WH-18
200-BK
H446-PK-18
200-BK-14
Y
200-BK
200-BK-18
235-BK-18
3
F889-WH-18
A584-BU-18
H446-PK-18
200-BK-18
H446-PK-18
200-BK
200-BK
615-YL
615-YL
135-BU-14
200-BK-18
210-BK-14
229-BK-14
L31
C569-YL-14
L7 L7
M745-BU-18
M745-BU-18
M749-WH-18
200-BK-18
200-BK-18
200-BK-18
M749-WH-18
586-BR
200-BK-18
C560-OR-18
C566-PK-18
M749-WH-18
151-GN
200-BK-18
576-PK-18
M745-BU-18
169-PK-18
123-WH-18
310-PU
307-OR
A537-PK-18
147-PU
147-PU
147-PU
147-PU
607-PK
F
ATCH SEAT
HEATER SW
163-6721
575-YL-18
152-BU
892-BR-18
893-GN-18
578-BU
535-BU 535-BU
C538-OR-18
C537-GN-18
V 204-1686 B-2
235-BK-18
607-PK-18
607-PK-18
200-BK-18
200-BK-18
200-BK-18
147-PU
147-PU
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
607-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
151-GN
235-BK-18
235-BK-14
CHASSIS
235-BK-14
M749-WH-18
E471-BU-18
200-BK-18
M745-BU-18
K870-GN-18
K870-GN-18
235-BK-18
K870-GN-18
200-BK
M906-BU-18
200-BK
CAB
CAB
CAB
OPERATOR STATION
200-BK-18
ATCH
12V 7A SOCKET
121-0987
(NOTE B)
CAB
235-BK-18
578-BU
607-PK-18
607-PK-18
535-BU-18
535-BU-18
607-PK-18
575-YL-18
200-BK-18
200-BK-18
576-PK-18
169-PK-18169-PK-18
4
200-BK-18
2
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-B K
200-BK
200-BK-18
200-B K 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
235-BK-18
SIGNAL
A582-PU
A581-GN
A580-BR
A579-OR
200-BK-18
308-YL
403-GN-18
129-BU
200-BK
200-BK
A582-PU
A581-GN
A580-BR
A579-OR
C537-GN-18
C538-OR-18
7
2
5
4
6
535-BU
9
11
12
8
3
10
152-BU
535-BU
152-BU
235-BK-18
892-BR-18
A584-BU-18
893-GN-18
201-BK-18
235-BK-18
229-BK-14
575-YL-18
113-OR-18
113-OR-18
147-PU
200-BK-18
LLF
200-BK
615-YL
119-PK-18
169-PK-18
6
3
18
615-YL
17
7
15
16
12
8
10
SS 132-1827 A-4
5
14
4
11
607-PK
2
9
2
10
9
13
18
15
7
6
8
4
5
12
20
21
14
16
3
19
17
11
308-YL
8630-BU-18
607-PK
169-PK-18
199-OR
13
308-YL 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
235-BK-18
M736-BU-18
X 116-0098 B-3
Y 183-0998 A-6 (NOTE D)
JJ 197-4302 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
2
AN
AN
235-BK-18
2
235-BK-18
235-BK-18
N 116-0146 C-2
DIODE
197-4385
M749-WH-18
506-PU-18
645-RD-18
329-YL-18
168-RD-18
169-PK-18
780-PU-18
150-OR-18
105-RD
307-OR
326-RD
308-YL
168-RD-18
168-RD-18
K906-GN-18
A768-BU-18
A278-BK-18
200-BK-18
200-BK-18
A893-OR-18
235-BK-18
A769-GY-18
L968-OR-18
L969-WH-18
F889-WH-18
A770-PK-18
K907-BU-18
A537-PK-18
A537-PK-18
M736-BU-18
169-PK-18
495-GN-18
F774-WH-18
365-YL-18
F773-OR-18
235-BK-18
A758-BR-18
M745-BU-18
A757-GY-18
2
AN
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
10
7
200-BK
12
4
3
9
8
11
6
5
+B
BK-18
F774-WH-18
BR-18
535-BU
103-RD-18
607-PK-18
AJ 197-4411 D-8
MB
L976-GN-18
11
L976-GN-18
8
5
2
3
ATCH SQUEEZE
PRESS. SENSOR
157-3128
(NOTE E)
L976-GN-18
325-PK-18
2
3
2
200-BK-10
780-PU-18
168-RD-10
105-RD
4
307-OR
326-RD
892-BR-18
893-GN-18
BK
YL
9
10
6
7
AJ
HYD OIL
FILTER SW
173-3518
GROUND
SIGNAL2
12
B
AJ
4
235-BK-18
CONSOLE(RH)
193-3406 HE 00
SSHYD OI L
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
163-6700
ATCH
REFUELING SW
5C-6108
2
HYD OIL
LEVEL SW
170-9376
E480-WH-18
AJ
AJ
K869-BU-18
Y/G
Y/W
K867-YL-18
ATCH JOYSTICK
177-7711
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
308-YL
998-BR-18
K906-GN-18
200-BK-18
L972-BU-18
607-PK
607-PK
S
+12V
GND
PWM+
SWITCH 1
SWITCH 2
COMMON
3
5
6
4
K867-YL-18
2
E472-GN-18
E473-GY-18
K843-GN-18
K847-PU-18
320-RD-18
329-YL-18
235-BK-18
235-BK-18
235-BK-18
CONSOLE(LH)
320-RD-18
200-BK-18
ATCH
JOYSTICK
177-7712
2
3
4
5
235-BK-18
235-BK-18
6 235-BK-18
235-BK-18
K852-GN-18
M743-GN-18
K848-WH-18
K844-GY-18
E474-OR-18
E472-GN-18
K851-BU-18
ATCH
REFUELING
POWER RELAY
165-4026
7
8
9
10
11
12
6
4
5
2
3
235-BK-18
235-BK-18
2
AN
K849-YL-18
DIODE
197-4385
ATCH BOOM
CHECK SOL 1
190-7770
200-BK-18
M748-OR-18
M748-OR-18
M748-OR-18
M748-OR-18
2
200-BK
120-YL
135-BU
120-YL
4
6
210-BK
M748-OR-18
5
3
COMMON
ATCH 12V 7A
CONVERTER
167-3467
GND
12V MEMORY
GND
24V IN
24V MEMORY
12V OUT
6
2
3
4
5
H792-BR-18
M749-WH-18
M745-BU-18
229-BK
200-BK
SWITCH 2
SWITCH 1
PWM+
200-BK-18
H473-BR-18 H473-BR-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
229-BK-18
179-BU
120-YL
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
235-BK-18
M749-WH-18
H792-BR-18
M745-BU-18
M748-OR-18
189-RD
GND
235-BK-18
151-GN
200-BK-18
H466-BU-18
A
M748-OR-18
2
ATCH
STRAIGHT TRAVEL
PRESS. SW
167-3466
H476-WH-18
H475-BU-18
154-RD
210-BK
235-BK-18
154-RD
T967-YL-18
147-PU
K904-GN-18
A769-GY-18
A768-BU-18
2
HH 197-4353 G-8
235-BK-18
H474-GN-18
M736-BU-18
308-YL
235-BK-18
147-PU
K853-GY-18
T967-YL-18
487-OR-18
491-PK-18
PLATFORMCHASSIS
GROUND STRAP
7G-1060
K854-OR-18
S
780-PU-18
487-OR-18
235-BK-18
M739-YL-18
F773-OR-18
M737-WH-18
M738-OR-18
892-BR-18
491-PK-18
M737-WH-18
M738-OR-18
M738-OR-18
M737-WH-18 A
C
B
200-BK-18
AN
235-BK-18
CHASSIS
321-BR-18
893-GN-18
200-BK
118-GY
ATCH UP/DOWN
PRESS. SW
202-9002
169-PK-18
K850-BR-18
E480-WH-18
A893-OR-18
A893-OR-18
893-GN-18
200-BK
235-BK-18
645-RD-18
A893-OR-18
200-BK-10
2
235-BK-14
8630-BU-18H
201-BK-18
2
638-W
199-OR
8630-BU-18
638-WH
6
6
2
638-WH
638-WH
5
200-BK
235-BK-18
168-RD-10
ATCH
CONVERTER
134-1346
TO RADIO
A513-RD-18
323-WH-10
616-BU
592-BU-18
A513-RD-18
2
113-OR-18
103-RD-18
592-BU-18
GND
MEM
12V
IGN
24V
200-BK-18
200-BK-18
200-BK-18
7
2
8
4
5
511-BR-18
NOTE B: NOT USE ON THIS VEHICLE.
LL 183-1011 G-8
509-WH-18
508-PU-18
512-GN-18
511-BR-18
638-WH
638-WH
200-BK
A
200-BK-18
511-BR-18
508-PU-18
512-GN-18
509-WH-18
113-OR-18
F
F
ATCH SPEAKER (L)
7Y-5505
ATCH SPEAKER (R)
7Y-5505
DOME LAMP
176-1986
F
ATCH BOOM DOWN
PRESS. SW
167-3466
C569-YL-14
325-PK-18
322-GY
200-BK-18
780-PU-18
(NOTE B)
K867-YL-18
147-PU
235-BK-18
1
893-GN-18
892-BR-18
235-BK-18
508-PU-18
512-GN-18
K
322-GY
F889-WH-18
509-WH-18
322-GY
210-BK-14
135-BU-14
3
F
(NOTE B)
113-OR-18
6
2
9
F889-WH-18
3
7
4
10
8
5
ATCH
12V 7A SOCKET
121-0987
6
2
M747-PU-18
AN
YL-18
AN
M743-GN-18
AN
APAPAP
AP
200-BK-18
200-BK-18
200-BK-18
ATCH SMART BOOM
UP/DOWN RELAY 2
149-5050
H792-BR-18
M746-YL-18
M746-YL-18
M745-BU-18
M746-YL-18
M746-YL-18
M747-PU-18
M746-YL-18
NOTE D: USE WITH CONFIG. 10,14.
101-RD-4
M744-PK-18
C
F
B
403-GN-18
200-BK-18
ANTENNA
167-3492
A
K869-BU-18
K869-BU-18
229-BK-14
C
235-BK-14
235-BK-18
169-PK-18
BLOCK AS.
121-1023
892-BR-18
893-GN-18
235-BK-18
200-BK
308-YL
308-YL
110-RD
189-RD
H705-BR-18
105-RD
189-RD
149-RD
615-YL
RD-18
WH-18
607-PK
160-PU
160-PU
160-PU
151-GN
BK-18
189-RD
154-RD
ATCH
HYD TANK
PRESS. SW
(NOTE B)
307-OR 306-GN
A588-GN
CAB FAN
A893-OR-18
308-YL
C987-RD-14
184-RD
151-GN
607-PK
C987-RD-14
A588-GN
V
235-BK-18
235-BK-18
168-RD-18
200-BK-10
200-BK-18
200-BK-10
200-BK-18
L976-GN-18
365-YL-18
168-RD-18
495-GN-18
L976-GN-18 200-BK-10
322-GY
616-BU
168-RD-10
607-PK
322-GY
105-RD
607-PK
112-PU-6
892-BR-18
325-PK-18
229-BK-18
229-BK-18
229-BK-18
200-BK
235-BK-18
200-BK
235-BK-14
M744-PK-18
200-BK
200-BK
K906-GN-18
M747-PU-18
M746-YL-18
200-BK-18
763-BU-18
235-BK-18
169-PK-18
TT
646-RD-18
A588-GN
A770-PK-18
306-GN
200-BK
C
A768-BU-18
325-PK-18
A623-BU-18
112-PU-6
200-BK
308-YL
308-YL
308-YL
308-YL
FOR ATCH
BEACON SW
308-YL
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 330C EXCAVATOR.
FF 193-3515 G-12 (NOTE A)
EE 170-6929 I-12 (NOTE A)
DD 193-3377 E-11 (NOTE A)
CC 204-1601 G-12
BB 170-6929 I-12
AA 186-4708 E-11
CABLE AS.
200-BK
PP 111-4829 G- 8
WIRE AS .
M 163-6750 C- 3
200-BK
A769-GY-18
L973-GN
109-RD-8
109-RD-6
109-RD-6
168-RD-10
304-WH-8
304-WH-8
L 167-3456 G-1
K 167-3527 D-5
J 167-3457 I-5
H 163-6810 F-1
G 170-6828 H-1
F 170-9310 F-1
E 186-4624 H-1
D 170-6959 I-3
C 197-4440 G-8
B 204-1632 C-2
K904-GN-18
GY
PU
BR
RED
WHIT E
ORANGE
YELLOW
PINK
ABBREV COLO R
BLAC K
GRAY
PURPLE
BROW N
235-BK-18
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
235-BK-18
IDENT PART NO .LOC
200-BK
235-BK-18
10A
C
B
200-BK-18
ATCH QUIC K
COUPLER SW
150-6988
A
HARNESS AS.
168-RD-10
INSP LAMP
184-RD
A588-GN
535-BU
196-BU
780-PU-18
200-BK-18
AJ
A770-PK-18
646-RD-18
607-PK
154-RD
200-BK-18
645-RD-18
616-BU
147-PU
(NOTE A)
(NOTE A)
168-RD-10
200-BK
F
N
AM
189-RD
109-RD-4
ATCH BOOM DOWN
LINE CUT OFF SOL
185-0472
487-OR-18
149-RD
149-RD
149-RD
115-RD
115-RD
115-RD
E480-WH-18
780-PU-18
235-BK-14
101-RD-4
306-GN
114-RD
196-BU
200-BK
114-RD
114-RD
200-BK
196-BU
200-BK
196-BU
2200-BK-18
235-BK-18
INSP LAMP
SOCKET
9R-7941
A893-OR-18
L968-OR-18
L969-WH-18
A770-PK-18
110-RD
615-YL
189-RD
DIODE
121-1022
W 116-0096 B-3
K907-BU-18
K906-GN-18
A768-BU-18
F773-OR-18
F774-WH-18
412-BU-18
E
NOTE A: USE WITH COLD WEATHER.
A
A769-GY-18
575-YL-18
576-PK-18
200-BK
200-BK
FAULT ALARM
132-1829
235-BK-18
147-PU
147-PU
K904-GN-18
235-BK-18
BK-1 8
235-BK-18
200-BK
BK-18
YL-18
A586-OR-18
CDL-
10
6
7
GND
F
8
20
14
17
2
11
F889-WH-18
16
AIR HEATER
RELAY
148-0757
3
2
4
105-RD
235-BK-18
3
19
12
18
15
M739-YL-18
+B
WASH
9
6
1 1
235-BK-18
5
3
TRAVEL MODE IND 1
2
1
4
6
5
7
M748-OR-18
200-BK-18
ATCH SMART BOOM
UP/DOWN RELAY 1
149-5050
8
3
150-OR-18
2
4
ATCH BOOM FLOAT
DISABLE RELAY
149-5050
7
143-BR-18
M744-PK-18
2
M746-YL-18
4
169-PK-18
124-GN-14
3
235-BK-18
11
535-BU
H705-BR-18
+12V
2
13
4
5
9
10
ATCH
HAMMER
PRESS. SW
167-3466
(NOTE B)
TRAVEL
LEFT
PRESS. SW
167-3466
F
ACC
DDA
A
A
E
E
RISE. S
REV
WASH
INT(6)
EE
E
E
INT(3)
IND UNIT
163-6702
TRAVEL
RIGHT
PRESS. SW
167-3466
2
JOYSTICK
PRESS. SW
167-3466
2
2
ATCH
SEAT WITH
SEAT HEATER
164-0505
+B
L. CHASSIS
BACKUP
EPR VALVE SW
163-6710
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
ATCH LOWER
WIPER MOTOR
167-7079
(NOTE B)
12
7
8
229-BK-18
200-BK-18
ATCH
AUX HYD
PRESS. SW
167-3466
(NOTE B)
306-GN
200-BK-18
109-RD-4
109-RD-4
118-GY
129-BU
179-BU
120-YL
147-PU
113-OR-18
180-GN
101-RD-4
105-RD
109-RD-4
200-BK
200-BK-10
646-RD-18
646-RD-18
LOW
123-WH-18
WIPER CUT
GND
WA+
W. CW
W. CC W
H
200-BK-18
H
QUICK COUPLER
15A
5A
10A
BEACON LAMP
15A
ATT SOL
10A
10A
5A
NEUTRAL START RELAY
161-3128
C
5A
STOP
10A
646-RD-18
235-BK-18
8
C
HYD LOCK SOL RELAY
161-3128
CHASSIS LAMP RELAY
161-3128
C
A/C SW PANEL
157-3210
MM 163-6780 H- 9
13
C
BOOM LAMP RELAY
161-3128
CAB LAMP RELAY
161-3128
C
LOWER WIPER/WASHER
CHASSIS LAMP
WIPER/WASHER
CIGAR LIGHTER
12V 7A CONVERTER 1
12V 7A CONVERTER 2
5A
10A
10A
10A
SW PANEL/RADIO
BACKUP/MONITOR CONT
5A
A/C
SEAT HEATER
DIODE
121-1022
AUX CKT
5A
10A
2
NN PP
6
START RELAY
125-1302
200-BK
306-GN
DIODE
121-1022
NN 183-1012 H-9
5
306-GN
109-RD-4
101-RD-4
169-PK-18
E480-WH-18
8630-BU-18
8630-BU-18
101-RD-4
199-OR
199-OR
12
11
10
9
7
8
6
5
4
3
2
A
B
RESISTOR
102-8016
C
322-GY
A893-OR-18
235-BK-18
235-BK-18
151-GN
646-RD-18
12
101-RD-4
L6
BR-1 8
491-PK-18
11
160-PU
ATCH UNDER
WINDOW LIMIT SW
129-6466
(NOTE B)
7
184-RD
646-RD-18
YL-1 8BR-18
A769-GY-18
A768-BU-18
C987-RD-14
101-RD-4
320-RD-18
11
5
7
10
12
8
4
A 197-4439 G-3
149-RD
115-RD
3
2
6
101-RD-4
114-RD
W. LO W
109-RD-4
893-GN-18
103-RD
105-RD
110-RD
175-RD-14
C
235-BK-14
616-BU
168-RD-10
200-BK
B
B
201-BK-18
ALTERNATOR
9W-3043
615-YL
200-BK
F
168-RD-10
4
169-PK-18
AEC MODE IND
T967-YL-18
W. INT(3)
+
235-BK-18
-
9
W. INT(6)
ALARM CANCEL IND
130-RD-14
152-BU
160-PU
HORN RELAY
161-3128
9
ALARM CANCEL SW
M739-YL-18
M739-YL-18
235-BK-18
235-BK-18
607-PK
B-
A278-BK-18
168-RD-18
365-YL-18
200-BK-18
AEC MODE SW
YL-18
J2
200-BK
J1
B+
R
30A
235-BK-18
325-PK-18
ALT
325-PK-18
200-BK-10
607-PK
323-WH-10
365-YL-18
A537-PK-18
10A
CAB LAMP
BOOM LAMP
TRAVEL MODE SW
L. BOOM
L. CHASSIS
10A
10A
5A
10A
C
FUEL PUMP RELAY
161-3128
10A
F
(NOTE B)
607-PK-18
607-PK-18
607-PK-1
8
607-PK-18
ATCH BEACON
200-BK-14
200-BK-14
235-BK-18
10A
15A
A758-BR-18
GND
10A
+B
10A
KEY SW
TIMER RELAY
ATCH V CONT
A/C BLOWER
S 193-3394 C-5 (NOTE D)
E/P CONT
BK-00
BK-00
A757-GY-18
A756-BU-18
RD-00
RD-0 0
RD-00
RD-00
320-RD-18
200-BK
607-PK-18
200-BK
235-BK-18
615-YL
147-PU
A755-PK-18
CAB
F
586-BR-18
5
2
3
7
6
8
586-BR-18 586-BR-18
103-RD-18
4
103-RD-18
B
B
K877-BU-18
235-BK-18
B
103-RD-18
308-YL
235-BK-18
235-BK-18
235-BK-18
K867-YL-18
2
M906-BU-18
K864-PK-18
CDL+
K870-GN-18
103-RD-18
K865-PU-18
S
103-RD-18
K876-BR-18
200-BK-18
322-GY
K866-WH-18
103-RD-18
103-RD-18
103-RD-18
5
4
3
2
103-RD-18
L973-GN-18
L973-GN-18
L973-GN-18
(NOTE B)
MOTOR
SIGNAL
S
ACC
143-BR-18
K877-BU-18
103-RD-18
M743-GN-18
F
B
B
B A
A
A
BB
616-BU
200-BK
+12V
BACKUP GOV SW
163-6711
LIGHT
WIPER
MOTO R
161-3667
WIPER CONT
155-7042
C
IN
F
GND
OUT
+B
2
3
4
TIMER
RELAY
163-6703
DOME LAMP/MEMORY
HORN
TRAVEL
STRAIGHT SOL
121-1491
2
1
15A
30A
15A
B
2
J
H
G
F
D
C
B
A
E
ET CONN
118-GY
308-YL
154-RD
607-PK
103-RD
320-RD-18
189-RD
615-YL
119-PK-18
147-PU
123-WH-18
113-OR-18
645-RD-18
150-OR-18
307-OR
179-BU
199-OR
H705-BR-18
120-YL
124-GN-14
152-BU
175-RD-14
129-BU
A893-OR-18
H792-BR-18
1
SWIN G
BRAKE SOL
121-1491
HYD LOCK
SOL
121-1491
200-BK
M748-OR-18
TRAVEL
SPEED SOL
121-1491
200-BK-18
SIGNAL
+B
GROUND
8
1
2
2
3
MONITO R
157-3198
MOTOR
CAB
607-PK
1
200-BK-18
200-BK-18
235-BK-18
NEG
POS
L976-GN-18
200-BK
200-BK
616-BU
615-YL
607-PK-18
200-BK
NEG
POS
B
NEG
WINDOW
LIMIT SW
117-6306
607-PK-18
ATCH
CAB LAMP
167-3441
POS
M747-PU-18
M746-YL-18
M745-BU-18
L972-BU-186
123-WH-18
M744-PK-18
M743-GN-18
120-YL
AP
135-BU
C569-YL
FUEL PUMP
190-8970
200-BK
120-YL
646-RD-18
120-YL
143-BR-18
2
AP
A537-PK-18
AP 204-1672 G-8
235-BK-18
AN 204-1671 G-8
AM 193-3388 C-2 (NOTE F)
SWITCH PANEL
163-6701
XX
ATCH
REFUELING
START RELAY
149-5050
FUSE
5A 141-2759
10A 113-8490
15A 113-8491
30A 124-3548
FUSE BASE
183-1000
V
5A
10A
X
10A
10A
A/C PHOTO
SENSOR
167-7083
310-PU
307-OR
200-BK-18
15A
15A
200-BK-18
5A
M
B
12V 7A
M
B
2
2
607-PK-18
607-PK-18
10
5
SERVICE
METER
6T-7337
MOTO R
2
CIGA R
LIGHTER
9W-0335
NEG
ATCH SMART BOOM
SELECT SW
186-4369
ATCH O.L.W.D .
ALARM CANCEL SW
170-9317
ATCH BOOM
CHECK SOL 2
165-9560
TT 201-1283 C-11
WIRE PAIRS OF 892-BR & 893-GN, G856-WH & G857-YL,
E965-BU & E966-YL, E963-BK & E964-WH MUST BE
TWISTED AT LEAST 1 TURN PER 25mm .
F
B
ATCH
BOOM LAMP
153-2521
OPERATOR STATIO
N
S4
S3
S2
S1
COM
N
AM
G
ATCH
CAB LAMP
167-3441
ATCH
REFUELING PUMP
123-3929
ATCH
REFUELIN G
START SW(NO)
6T-944 2
W
V
V
HORN
7Y-3919
LL
F
V
N
AM
POS
+
-
ATCH
REFUELING
STOP RELAY
149-5050
E
V
F
KEY SW
9G-7641
E
WW
ATCH
REFUELING
STOP SW(NC)
9X-4184
F
F
KK 197-4304 H-12
(NOTE B)
FUEL PUMP RELAY
CHASSIS
LAMP
153-2523
THROTTLE
POS SW
106-0107
ATCH
BOOM LAMP
153-2521
F
F
R
C
S
B
F
OFF
F
ON
ST
NOTE C: NOT USE WITH HEATER UNIT.
NOTE F: USE WITH SHORT BOOM.
2
2
200-BK-18
HORN
7Y-3920
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 7
CONN 8
CONN 9
CONN 10
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
CONN 30
CONN 31
CONN 32
CONN 33
CONN 34
V
CONN 35
CONN 36
CONN 37
11
F
F
H
G
I
F
E
D
C
B
A
H
G
I
F
E
D
C
B
A
9 8 7 6 5 4 3 2
11112 10
9 8 7 6 5 4 3 2
11112 10
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITOR CIRCUIT. (EMS)
PANEL LAMP CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ATCH VALVE CONTROL CIRCUIT.
OPERATOR INTERLOCK CIRCUIT.
ENGINE SHUTDOWN CONTROL CIRCUIT.
START AID CIRCUIT.
AUXILIARY HEATER CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
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#
