313B EXCAVATOR ELECTRICAL SCHEMATIC USED IN SERVICE MANUAL RENR4000

RENR4004
December 1999
313B CR Excavator
Electrical System
BAS1-UP
AEX1-UP
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits
101 RD
Bat(+)
500 BR
Wiper - Front (Park)
104 RD
Alt Breaker
501 GN
Wiper - Front (Low)
107 RD
Eng Shut - Down Fire Suppr
506 PU
Washer - Front
109 RD
Alt Output (+) Term.
508 PU
Radio Speaker - Left
112 RD
Main Power Rly Output
509 WH
Radio Speaker - Left (Commom)
115 RD
Lamp/Wiper
511 BR
Radio Speaker - Right
120 YL
Radio
512 GN
Radio Speaker - Right (Common)
121 YL
Back Alarm To Lamp
513 OR
A/C Compressor/Refrigerant Pressure SW
124 GN
A/C
515 GY
Blower Motor (Hi)
142 BU
Aux Ckt
517 BU
Blower Motor (Low)
151 GN
Hyd Lock Sol
519 PK
Thermostat To Refrigerant Press. SW
190 BK
Eng Gov/Monitor
535 BU
SW To Wiper SW
Ground Circuits
A588 GN
Safety Sol Relay To Sol+
200 BK
Main Chassis
Lighting Circuits
201 BK
Operator Monitor Return
612 GY
Backup Lamp
Basic Machine Circuits
616 BU
Bucket Flood LampfBoom Flood Lamp
306 GN
Starter Relay Coil To Neut Start SW
Control Circuits
307 OR
Key SW To Neutral Start SW
762 YL
Bucket Positioner Sol SW
309 GY
Alternator Regulator Term.
763 BU
Torque Converter SW
310 PU
Start Aid SW To Start Aid Sol
799 WH
Sensor Power
315 GN
Start Aid Breaker To Start Aid Relay
B786 BU
Low Idle SW
320 OR
Horn Relay Coil To SW
D746 PK
Alt Signal To Anti-Start Relay
321 BR
Backup Alarm Lamp Travel Alarm
E771 OR
Low Torque Mode Sol
322 GY
Warning Horn (Forward)
817 WH
Back-Up Alarm Relay
323 WH
Fuel Pump Power
877 YL
Glow Plug Magnetic SW To Slow Plug
327 PK
Shutdown Solenoid
D813 OR
Low Idle SW HEDC
330 YL
Neutral Start Relay Coil
D814 GY
Implement Press SW
332 BU
Shutdown SW To Shutdown Ctrl
D815 PU
Low Idle Indicator
364 BU
Engine Shutdown SW - Ctrl
D816 WH
Eng/Pump Cont Sol
Monitoring Circuits
B965 GY
Level Finish Sol
403 GN
Alternator (R) Term.
K906 GN
Swing Brake Sol - Signal
405 GY
Opr Mon Oil Press. (Low Setting)
K915 GN
Fine Swing SW - EIP Controller
406 PU
Opr Mon Coolant Temp
441 OR
Eng Coolant Temp Guage
442 GY
Hyd System Temp Guaqe
447 PK
Fuel Level guage
C400 GN
Hyd Shutoff Valve
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
121-1491
Solenoid-Hydraulic Lock
32.0 ± 3.2
¹ At room temperature unless otherwise noted.
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.
1
2
3
4
6 7
8
9
11
3
4
6
6
8
9
10
11
12
14
15
13
1
2
3
1
1
3
2
8
9
1
2
3
4
5
4
3
1
3
4
1
3
4
1
2
3
2
AREA F
AREA E
AREA D
AREA C
A
1 2
3
4
5
6
7
8
9
10
13
14
15
16
3
4
5
6
8
9
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
7
F
17
18
19
20
21
22
23
24
25
26
A
1
2
3
4
5 6
7
8
9
10
13
14
15
16
3
23
5
6
8
9
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
4
4
7
F
17
18
19
20
21
22
23
24
25
26
Machine Harness Connector And Component Locations
Component Location
Component
Schematic
Location
Machine
Component
Schematic
Location
Machine
Location
Actuator - Governor
B-3 1A
Sensor - Fuel
H-9 19
NC Switch Panel
J-7 1B
Solenoid - A/C Compr Clutch
F-9 20
Alternator
F-9 1
Solenoid - Boom Decompression
E-6 6C
Antenna
B-6 2
Solenoid - Engine Shutdown
E-9 21
Battery
A-4 1E
Solenoid - Hydraulic Lock
H-1 3C
Box - Fuse
E-5 1D
Solenoid - Low Torque Mode
A-7 1F
Breaker - Alternator
H-1 2D
Solenoid - Swing Brake
B-7 22
Cable - Antenna
J-5 3
Solenoid - Travel Speed
A-7 2F
Controller - Governor
D-3 3D
Solenoid - Trenching
A-7 3F
Heater Switch Panel
J-7 2B
Speaker
C-6, J-6 23
Horn
D-1 1C
Switch - Air Bleed Pump
J-1 11B
Lamp - Boom
B-2 4
Switch - A/C Refrigerant Low Press
J-9 24
Lamp - Dome
J-6 5
Switch - Boom Decompression
B-4 31
Meter - Service
F-1 4D
Switch - Disconnect
A-4 2E
Monitor
C-5 3A
Switch - Engine Coolant Temp
F-9 25
Motor - Starter
D-9 6
Switch - Engine Oil Press
E-9 26
Motor - Washer
H-9 7
Switch - Horn
J-1 12B
Motor - Wiper
E-1 8
Switch - Light
J-1 13B
Plug - Glow
E-9 9
Switch - Low Torque Mode Limit
A-9 27
Pump - Fuel
H-9 13
Switch - Neutral Start
H-1 14B
Radio
J-4 3B
Switch - One Touch Low Idle
C-2 4A
Relay - Boom Decompression
F-2 15D
Switch - Press
A-5 3E
Relay - Engine Shutdown
G-9 14
Switch - Slow Mode Control
J-3 15B
Relay - Heater
G-9 15
Switch - Starter
C-3 5A
Relay - Horn
E-2 10D
Switch - Travel Press
B-5 4E
Relay - Light
E-2 11D
Switch - Travel Speed
D-2 28
Relay - Neutral Start
E-2 12D
Switch - Washer
J-2 17B
Relay - Safety
F-1 6D
Switch - Wiper
J-2 18B
Relay - Starter
D-9 16
Switch - Work Mode Control
J-3 19B
Relay - Swing
F-2 13D
Timer - Engine Shutdown
F-1 8D
Relay - Swing Timer
F-2 14D
Unit - A/C
J-7 29
Relay - Wiper
E-2 9D
Unit - Heater
J-7 30
Sender - Engine Coolant Temp
F-9 17
Valve - Proportional Reducing
A-7 4F
Sender - Hydraulic Oil Temp
A-7 18
Area A = Inside of R.H. console
Area B = Inside of L.H. console
Area C = Under platform
Area D = Inside of seat support
Related Electrical Service Manuals
Form Number
Electrical and Electronic System RENR4008
Title
Harness Connector Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
17 Contacts
CONN4
A
C-161-3113
Monitor
B-5 4 Contacts
CONN43
H-132-7568
Heater Unit
J-7
CONN5
D
B- 167-3482
C-161-3113
E-5
CONN35
E-125-4806
Speaker
J-6
CONN37
A- 167-3481
B-167-3482
H-7
CONN36
E-125-4806
Speaker
C-6
CONN39
C
A-167-3481
C-161-3113
H-7
CONN44
B
H-132-7568.
Heater Switch Panel
J-7
9 Contacts
CONN15
B
B-167-3482
Radio
J-4
CONN78
A-167-3481
Boom Decompression
B-4
8 Contacts
CONN7
D
C-161-3113
Governor Controller
D-3
CONN26
C
B-167-3482
Hydraulic Lock Solenoid
H-1
CONN8
D
Governor Controller
Governor Actuator
D-3
CONN40
C
A-167-3481
C-161-3113
G-7
CONN12
D
B-167-3482
Safety Relay
F-1
CONN46
A-167-3481
A/C Refrigerant Low Press
Switch
J-9
CONN34
B
B-167-3482
E-125-4806
H-6
CONN48
A-167-3481
Fuel Sensor
H-8
CONN38
A-167-3481
B-167-3482
H-7
CONN52
A-167-3481
Alternator
E-9
CONN42
A-167-3481
H-132-7568
J-7
CONN55
A-167-3481
Starter Relay
D-9
CONN45
A-167-3481
A/C Unit
J-7
CONN56
A-167-3481
Swing Brake Solenoid
B-8
CONN16
B
B-167-3482
Work Mode Control Switch
J-3
CONN59
F
A-167-3481
Travel Speed Solenoid
A-7
CONN17
B
B-167-3482
Slow Mode Control Switch
J-3
CONN60
F
A-167-3481
Trenching Solenoid
A-7
CONN18
B
B-167-3482
Washer Switch
J-2
CONN61
F
A-167-3481
Low Torque Mode Solenoid
A-7
CONN19
B
B-167-3482
Wiper Switch
J-2
CONN62
F
A-167-3481
Proportional Reducing Valve
A-7
CONN20
B
B-167--3482
Air Bleed Pump Switch
J-1
CONN70
E
A-167-3481
Travel Press Switch
A-5
CONN21
B
B-167-3482
Light Switch
J-1
CONN71
E
A-167-3481
Press Switch
A-5
CONN6
D
B-167-3482
C-161-3113
E-5
CONN72
E
A-167-3481
Press Switch
A-5
CONN11
D
B-167-3482
Engine Shutdown Timer
F-1
CONN73
E
A-167-3481
D-167-3483
B-4
CONN23
D
B-167- 3482
Swing Timer Relay
F-2
CONN77
C
B-167- 3482
Boom Decompression Solenoid
E-6
CONN31
C
B-167- 3482
G-125-4813
D-2
CONN41
C
A-167-3481
C-161-3113
G-7
CONN32
F-125-4805
G-125-4813
D-2
CONN53
A-167-3481
Alternator
E-9
CONN33
F-125-4805
Wiper Motor
D-1
Bullet
Terminal
CONN1
A
C-161 -3113
One Touch Low Idle SW
C-2
CONN22
B
B-167-3482
Horn Switch
H-1
CONN50
A-167-3481
Engine Coolant Temp Sender
F-9
CONN25
B
B-167--3482
Neutral Start Switch
H-2
CONN51
A-167--3481
A/C Compr Clutch Solenoid
F-9
CONN30
B-167 -3482
J-163-6738
D-2
CONN54
A-167-3481
Engine Oil Press Switch
E-9
CONN47
A-167-3481
Fuel Pump
H-9
CONN57
A-167-3481
Low Torque Mode Limit Switch
A-8
CONN49
A -167- 3481
Engine Coolant Temp Switch
F-9
CONN58
A -167- 3481
Hydraulic Oil Temp Sender
A-7
3 Contacts
2 Contacts
1 Contacts
Bullet Terminal
Bullet
Terminal
12 Contacts
6 Contacts
5 Contacts
4 Contacts
1
2
1
1
1
6
7
8
3
2
3
4
4
3
21
18
4
9
8
4
5
4
3
1
17
16
15
14
13
2
8
7
4
10
11
9
3
1
2
26
5
6
7
8
9
11
3
5
6
12
13
9
19
20
22
23
24
25
1
4
5
6
7
8
9
11
12
3
4
11
12
14
15
13
1
2
17
18
19
5
1
3
1
3
4
13
AREA B
AREA A
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
5I-6587
Engine Oil Pressure
80 t 10 kPa
(11.6 ± 1.45 psi
50 ± 10 kPa
(7.3 ± 1.4 psi)
Normally Open
085-5121
Engine Coolant Temperature
106.0 ±2.0 °C
(222.8 ± 3.7 °F)
90 °C
(194 °F)
Normally Closed
105-9344
Refrigerant Pressure
200 ± 20 to 2250 kPa
(29 ± 2.9 to 326.3 psi)
Normally Open
106-0179
Governor Pressure
Travel Pressure
1225.00 ± 98.00 kPa
(177.67 ± 14.21 psi)
882.00 kPa MIN
(127.92 psi MIN)
Normally Open
²Contact position at the contacts of the harness connector.
¹A hysteresis band exist: with increasing pressure the closed condition can be maintained up to 2800kPA (405 psi), with decreasing pressure the closed
condition can be maintained down to 170 kPa (25 psi).
©
1999 Caterpillar
All Rights Reserved
Printed in U.S.A.
A
A
ATCH A/C
SWITCH PANEL
157-9175
ATCH A/C UNIT
157-9179
HEATER
SWITCH PANEL
132-7565
HEATER UNIT
114-8332
200-BK-18
517-BU-18
515-GY-18
1
4
2
6
3
5
5
3
513-OR-18
519-PK-18
6
2
124-GN-18
124-GN
200-BK
4
1
12
L25
A
A
L21
L9
L18
L23
L27
L24
A
A
L24
L25
L24
ATCH A/C COMPR
CLUTCH SOL
125-1782
200-BK-18
BE
L17
L19
124-GN-18
519-PK-18
L10
A
NOTE C : USE WITH AM/FM RADIO.
G
F
B
C
B
L19
L5
L3
L15
L1 L2
L17
B
L10
L9
B
B
3
L14
309-GY-18
L2
GROUND STRAP
7G-1060
330-YL-18
330-YL-18
330-YL-18
BK/YL
309-GY-18
C
A
A
C
CA
B
L1
506-PU-18
323-WH-18
B
D814-GY-18
877-YL-18
D814-GY-18
315-GN-18
442-GY-18
441-OR-18
190-PK-18
406-PU-18
109-RD-6
405-GY-18
104-RD-6
K915-GN-18
K906-GN-18
616-BU
D816-WH-18
364-BU-18
763-BU-18
306-GN-18
B965-GY-18
D746-PK-18
104-RD-10
104-RD-14
405-GY-18
109-RD-14
406-PU-18
190-PK-18
441-OR-18
1
309-GY-18
442-GY-18
315-GN-18
10
11
403-GN-18
142-BU-18
6
3
2
1
5
7
8
4
9
447-PK-18
877-YL-18
330-YL-18
12
1
2
330-YL-18
877-YL-18
447-PK-18
315-GN-18
442-GY-18
441-OR-18
190-PK-18
406-PU-18
C
E
A
115-RD
109-RD-14
WH/BK
BU/BK
BU
BU/WH
200-BK
500-BR
115-RD
501-GN
405-GY-18
A
A
1
3
2
A
A
109-RD-6
104-RD-6
109-RD-14
104-RD-18
104-RD-10
124-GN-18
104-RD-18
104-RD-10
D814-GY-18
BK
447-PK-18
309-GY-18
200-BK-18
200-BK-18
RD-00
B965-GY-18
200-BK-18
D816-WH-18
763-BU-18
442-GY-18
3
4
5
2
1
RD
BK
YL
BU
WH
BK
YL
RD
3
1
5
4
2
WH
3
4
BU
2
BK
5
YL
1
WH
K906-GN-18
364-BU-18
327-PK-10
200-BK-18
104-RD-6
ENG SHUTDOWN
RELAY
9X-8124
RD-00
RD-00
RD-00
877-YL-18
D814-GY-18
2
200-BK
315-GN-18
442-GY-18
441-OR-18
190-PK-18
124-GN-18
406-PU-18
405-GY-18
200-BK
K915-GN-18
K906-GN-18
4
616-BU
OPERATOR STATION
200-BK-18
612-GY-18
OPERATOR STATION
200-BK-18
612-GY-18
OPERATOR STATION OPERATOR STATION
D816-WH-18
364-BU-18
763-BU-18
306-GN-18
B965-GY-18
D746-PK-18
124-GN
403-GN-18
142-BU-18
B
330-YL-18
330-YL-18
190-PK
D814-GY-18
D815-PU-18
B786-BU-18
B
B
F
D813-OR-18
201-BK-18
RD-00
5
1
201-BK-18
RD-00
405-GY-18
7
BK-00
3
G
B
B
G
4
K906-GN-18
142-BU-18
K915-GN-18
SWING TIMER
RELAY
099-1452
200-BK-18
323-WH-18
5
506-PU-18
104-RD-18
B
1
6
2
501-GN
8
142-BU-18
612-GY-18
L3
200-BK-18
ATCH
BOOM LAMP
153-2521
GOV CONT
132-7764
2
6
1
200-BK-18
200-BK-18
200-BK-18
A
5
HORN
7Y-3920
HORN
7Y-3919
4
3
WH
GN
OR
YL
BK
PK
A
SWING
BRAKE SOL
121-1491
B J JJ
L8
7
3
L8
L9
L10
L8
L6
L6
A
L20
L7
12
11
10
6
5
8
9
4
2
LIGHT
RELAY
161-3128
441-OR-18
DD
612-GY-18
CHASSIS
1
B
200-BK
3
4
190-PK-18
D814-GY-18
190-PK-18
200-BK-18
FUEL TANK UNIT
L4
200-BK-18
200-BK-6
201-BK-18
201-BK-18
D814-GY-18
200-BK-18
200-BK-18
200-BK-18
K915-GN-18
142-BU-18
309-GY-18
107-RD-18
200-BK-18
D
200-BK
616-BU
200-BK-18
142-BU-18
115-RD
115-RD
FUSE BASE
5I-9888
B
200-BK-18
115-RD
115-RD
107-RD-18
115-RD
506-PU-18
323-WH-18
B965-GY-18
763-BU-18
200-BK-18
D816-WH-18
124-GN-18
124-GN
115-RD
K915-GN-18
A588-GN-18
306-GN-18
322-GY-18
501-GN
500-BR
616-BU
K906-GN-18
309-GY-18
403-GN-18
330-YL-18
D746-PK-18
364-BU-18
142-BU-18
1
D816-WH-18
511-BR-18
120-YL-18
508-PU-18
509-WH-18
612-GY-18
200-BK
200-BK-18
200-BK-18
200-BK-18
200-BK-14
CHASSIS
500-BR
A
J
512-GN-18
403-GN-18
364-BU-18
D746-PK-18
330-YL-18
403-GN-18
309-GY-18
200-BK
200-BK-18
RD
L18
2
1
1
L16
200-BK-14
BK-00
200-BK
200-BK
200-BK-18
K915-GN-18
K906-GN-18
200-BK-18
616-BU
535-BU-18
500-BR
501-GN
322-GY-18
306-GN-18
A588-GN-18
A588-GN-18
K915-GN-18
SWING RELAY
161-3128
200-BK-18
320-OR-18
151-GN-18
B965-GY-18
323-WH-18
MONITOR
115-RD
120-YL-18
506-PU-18
616-BU-18
200-BK-18
616-BU-18
616-BU
200-BK-18
406-PU-18
200-BK
1
2
3
15A
10A
124-GN
124-GN-18
612-GY-18
332-BU-18
535-BU-18
10A
15A
107-RD-18
512-GN-18
509-WH-18
508-PU-18
142-BU-18
B
LOW TORQUE MODE
LIMIT SW
132-7723
307-OR-18
330-YL-18
877-YL-8
101-RD-6
327-PK-10
PLATFORM
E771-OR-18
20A
10A
10A
612-GY-18
763-BU-18
200-BK-18
190-PK-18
10A
501-GN
115-RD
2
500-BR
200-BK
322-GY-18
200-BK-18
A588-GN-18
200-BK-18
A
L11
L11
200-BK-18
322-GY-18
A
320-OR-18
A
322-GY-18
A
200-BK-18
15A
6
3
2
124-GN-18
D816-WH-18
323-WH-18
D746-PK-18
506-PU-18
142-BU-18
1
5
4
B965-GY-18
330-YL-18
309-GY-18
616-BU
306-GN-18
124-GN
K906-GN-18
K915-GN-18
403-GN-18
364-BU-18
109-RD-6
107-RD-18
612-GY-18
107-RD-18
142-BU-18
107-RD-18
107-RD-18
107-RD-18
115-RD
109-RD-6
364-BU-18
763-BU-18
1
616-BU
K906-GN-18
A588-GN-18
200-BK-18
142-BU-18
200-BK-18
T
NOTE B : USE WITH COLD WEATHER.
124-GN-18
124-GN
200-BK-18
107-RD-18
B965-GY-18
200-BK-18
142-BU-18
D816-WH-18
107-RD-18
200-BK-18
151-GN-18
A
120-YL-18
104-RD-10
405-GY-18
406-PU-18
115-RD
332-BU-18
307-OR-18
612-GY-18
M
190-PK-18
441-OR-18
CCBBAA
309-GY-18
C
A
AA
A
A
142-BU-18
200-BK-10
EE
D813-OR-18
BK-18
107-RD-18
320-OR-18
200-BK-18
K915-GN-18
A588-GN-18
A588-GN-18
306-GN-18
307-OR-18
115-RD
322-GY-18
501-GN
500-BR
763-BU-18
535-BU-18
616-BU
612-GY-18
200-BK-18
142-BU-18
4
K906-GN-18
403-GN-18
1
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 313BCR EXCAVATOR.
12
DD
CC
BB
AA
CABLE AS.
5
D
C
B
309-GY-18
403-GN-18
A
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
IDENT PART NO. LOC
HARNESS AS.
330-YL-18
D746-PK-18
364-BU-18
332-BU-18
190-PK-18
190-PK-18
323-WH-18
ILLUMI (+)
GND
ACC (+)
BACK UP
107-RD-18
200-BK-18
142-BU-18
A
506-PU-18
K906-GN-18
10
7
RD-00
9
11
8
6
3
107-RD-18
447-PK-18
107-RD-18
L6
612-GY-18
200-BK-18
+
S
SPEAKER (-)
200-BK-18
107-RD-18
200-BK-18
332-BU-18
364-BU-18
D746-PK-18
330-YL-18
442-GY-18
403-GN-18
D814-GY-18
309-GY-18
332-BU-18
K906-GN-18
142-BU-18
612-GY-18
616-BU
535-BU-18
E771-OR-18
500-BR
501-GN
322-GY-18
115-RD
307-OR-18
306-GN-18
A588-GN-18
A588-GN-18
K915-GN-18
200-BK-18
320-OR-18
WIPER RELAY
161-3128
107-RD-18
B
307-OR-18
612-GY-18
2
200-BK-18
3
GLOW
HORN/SHUTDOWN
447-PK-18
AUX
A/C BLOWER
D814-GY-18
200-BK
200-BK
D813-OR-18
B786-BU-18
D815-PU-18
112-PU-10
L23
109-RD-14
310-PU-18
190-PK-18
104-RD-14
101-RD-6
315-GN-18
107-RD-14
180-GN
124-GN-18
406-PU-18
124-GN
200-BK-18
L13
310-PU-18
104-RD-14
L13
112-PU
104-RD-6
L12
101-RD-6
200-BK-18
D815-PU-18
OPERATOR STATION
506-PU-18
B786-BU-18
405-GY-18
D813-OR-18
441-OR-18
200-BK
200-BK
403-GN-18
D814-GY-18
B
309-GY-18
BK-18
406-PU-18
405-GY-18
L12
L21
513-OR-18
306-GN-18
ATCH
SPEAKER(R)
7Y-5434
K906-GN-18
441-OR-18
315-GN-18
104-RD-14
403-GN-18
309-GY-18
190-PK-18
190-PK
310-PU-18
109-RD-14
200-BK
322-GY-18
513-OR-18
315-GN-18
306-GN-18
327-PK-10
101-RD-6
112-PU-14
112-PU-14
112-PU
332-BU-18
112-PU
112-PU-14
112-PU-14
MOTBAT
S
D814-GY-18
109-RD-6
D814-GY-18
ENG
MOTOR
L
D816-WH-18
E
B
P
R
ALT
GLOW PLUG
099-7529
ALTERNATOR
122-5543
COOLANT TEMP
SENDER
095-3757
D746-PK-18
STARTER
122-5542
877-YL-8
K915-GN-18
K906-GN-18
LOW TORQUE MODE
SOL
126-9992
RD
190-PK-18
403-GN-18
306-GN-18
BK-00
60A
ILLUM
HEATER RELAY
HYD OIL TEMP SENDER
BK
KNOB
7Y-9390
KEY SW
7Y-3918
D814-GY-18
ALT BREAKER
9S-0174
START RELAY
HEATER RELAY
085-5353
ONE TOUCH LOW IDLE
+ BATTERY
GND
STARTER CONT RELAY
ENG OIL PRESS. SW
200-BK-18
COOLANT TEMP SW
COOLANT TEMP SENDER
MONITOR
OPERATOR
121-1117
447-PK-18
877-YL-18
330-YL-18
151-GN-18 112-PU-18
HYD LOCK SW
A B
799-WH-18 799-WH-18
200-BK-14
POS
NEG
K915-GN-18
200-BK-6
D746-PK-18
L26
799-WH-18
799-WH-18
799-WH-18
112-PU-10
SERVICE
METER
161-3932
142-BU-18
142-BU-18
799-WH-18
200-BK-18
ENG OIL
PRESS. SW
5I-6587
K906-GN-18
K915-GN-18
190-PK-18
612-GY-18
307-OR-18
332-BU-18
115-RD
142-BU-18
364-BU-18
115-RD
120-YL-18
151-GN-18
142-BU-18
107-RD-18
124-GN
124-GN-18
142-BU-18
ENG GOV ACTR
120-0040
109-RD-14
L3
E771-OR-18
124-GN-18
124-GN
107-RD-18
200-BK-18
142-BU-18
151-GN-18
A
3
120-YL-18
115-RD
115-RD112-PU-18
112-PU-14
124-GN
151-GN-18
A588-GN-18
616-BU
442-GY-18
763-BU-18
1
2
D816-WH-18
L22
322-GY-18
BK-18
200-BK
500-BR
PK
BK
YL
115-RD
OR
GN
306-GN-18
501-GN
ANTENNA
616-BU
442-GY-18
763-BU-18
D816-WH-18
107-RD-18
YL
535-BU-18
ATCH
SPEAKER(L)
7Y-5434 (NOTE C)
ATCH
ANTENNA
106-0036
B965-GY-18
ATCH
AM RADIO
7Y-5433
ATCH
AM/FM RADIO
7Y-5437
SPEAKER (+)
SPEAKER (-)
SPEAKER (+)
320-OR-18
200-BK-18
K915-GN-18
A588-GN-18
L26
C
612-GY-18
612-GY-18
200-BK-18
200-BK-18
612-GY-18
200-BK-18
A588-GN-18
306-GN-18
799-WH-18
BK
307-OR-18
ATCH
TRAVEL ALARM
CANCEL SW
170-6952
ENG
SHUTDOWN SOL
122-5544
WH
D814-GY-18
200-BK
YL
BK
200-BK-18
BU
612-GY-18
3
330-YL-18
200-BK-18
1
142-BU-18
200-BK-18
115-RD
612-GY-18
5
323-WH-18
B965-GY-18
4
322-GY-18
2
A/C
616-BU
142-BU-18
506-PU-18
B
200-BK-18
501-GN
500-BR
323-WH-18
320-OR-18
612-GY-18
612-GY-18
320-OR-18
115-RD
535-BU-18
142-BU-18
535-BU-18
616-BU
115-RD
612-GY-18
K915-GN-18
142-BU-18
K906-GN-18
124-GN-18
506-PU-18
D816-WH-18
323-WH-18
D746-PK-18
506-PU-18
109-RD-14
762-YL-18
323-WH-18
142-BU-18
B965-GY-18
330-YL-18
B965-GY-18
500-BR
309-GY-18
616-BU
1
306-GN-18
2
124-GN
K906-GN-18
612-GY-18
K915-GN-18
403-GN-18
763-BU-18
190-PK-18
364-BU-18
142-BU-18
1
109-RD-6
2
AIR BLEED
PUMP SW
121-1129
LIGHT SW
(BOOM LAMP)
121-1126
WASHER SW
121-1128
799-WH-18
121-YL-18
877-YL-18
519-PK-18
200-BK-18
D746-PK-18
200-BK-18
2
1
BK
RD
RD
BK
A
121-YL-18
799-WH-18
763-BU-18
200-BK-18
501-GN
799-WH-18
612-GY-18
121-YL-18
817-WH-18
ENG GOV
200-BK-18
200-BK-18
190-PK
2
1
817-WH-18
WIPER SW
121-1127
121-YL-18
817-WH-18
200-BK-18
799-WH-18
H
763-BU-18
RADIO
200-BK-18
SWITCH
142-BU-18
115-RD 109-RD-14
LAMP
512-GN-18
616-BU
B786-BU-18
509-WH-18
112-PU142-BU-18
508-PU-18
120-YL-18
442-GY-18
322-GY-18
309-GY-18
403-GN-18
120-YL-18
763-BU-18
B786-BU-18
200-BK
D746-PK-18
WH
330-YL-18
511-BR-18
D746-PK-18
11
200-BK-14
364-BU-18
332-BU-18
330-YL-18
4
10
1
L14
200-BK-18
124-GN-18
107-RD-18
200-BK-18
2
3
4
2
+1
501-GN
115-RD
616-BU
B965-GY-18
E
500-BR
5
9
8
7
200-BK-14
200-BK-18
C
GN-18
6
W
A
-
200-BK-18
799-WH-18
403-GN-18
817-WH-18
121-YL-18 121-YL-18
200-BK-18
190-PK-18
817-WH-18
TRAVEL SPEED
SOL
126-9992
799-WH-18
D813-OR-18
GND
200-BK-18
1
4
309-GY-18
3
2
200-BK-18
FUEL
SENSOR
7Y-3848
200-BK-18
1
200-BK
ATCH
TRAVEL ALARM
3E-7738
200-BK-18
321-BR-18
200-BK-18
1
2
GND
CANCEL
501-GN
PRESS.
ALARM
500-BR
B
+BATTERY
799-WH-18
200-BK 200-BK
501-GN
115-RD 115-RD
817-WH-18
HYD OIL
TEMP SENDER
096-4643
321-BR-18
121-YL-18
HYD
LOCK SOL
121-1491
ATCH TRAVEL
ALARM TIMER
122-2371
BK
4
3
447-PK-18
A
500-BR
2
1
W
W
W
125-4813
125-4805
163-6738
167-3483
170-9425
170-6964
170-9424
132-7568
125-4806
170-6962
D-2
D-2
D-2
B-3
G-7
H-6
H-7
J-7
J-6
G-8
121-YL-18 121-YL-18
1
A
TRENCHING
SOL
126-9992
200-BK-18
115-RD
121-YL-18
441-OR-18
B
B
442-GY-18
877-YL-18
115-RD
121-YL-18
200-BK-10
+ BATTERY
115-RD
121-YL-18
121-YL-18
330-YL-18
121-YL-18
TRAVEL ALARM
817-WH-18
BK-18
200-BK-18
200-BK-18
OPERATOR STATION
500-BR
817-WH-18
200-BK
200-BK-18
E
200-BK-18
817-WH-18
403-GN-18
L12
332-BU-18
112-PU-10
309-GY-18
310-PU-18
307-OR-18
104-RD-10
2
2
CABLE
093-2060
A
2
1
MOTOR
1
142-BU-18
A
A
142-BU-18
L9
BOOM DECOMPRESSION
SOL RELAY
161-3128
762-YL-18
C400-GN-18
511-BR-18
BU-14
142-BU-18
512-GN-18
142-BU-18
200-BK-18
612-GY-18
L5
315-GN-18
A
104-RD-14
PLATFORM
501-GN
GND
WIPER
112-PU-18
405-GY-18
112-PU
D816-WH-18
112-PU-14
E
T
17
H
511-BR-18
309-GY-18
B
B
200-BK-18
115-RD
330-YL-18
190-PK-18
C400-GN-18
200-BK-18
B965-GY-18
142-BU-18
762-YL-18
190-PK
406-PU-18
310-PU-18
190-PK-18
112-PU
D815-PU-18
142-BU-18
762-YL-18
C400-GN-18
109-RD-14
115-RD
307-OR-18
612-GY-18
306-GN-18
A588-GN-18
TRAVEL
2 SPEED SW
162-0891
HYD LOCK
RELAY
161-3128
C400-GN-18
FUSE
10A 9W-1442
15A 9W-1441
20A 9W-1446
107-RD-18
MOTOR
120-YL-18
762-YL-18
107-RD-18
A
200-BK-18
612-GY-18
612-GY-18
200-BK-18
535-BU-18
SOLENOID
612-GY-18
762-YL-18
307-OR-18
190-PK-18
B
B
-
C400-GN-18
MOTOR
364-BU-18
200-BK-18
330-YL-18
B965-GY-18
200-BK
616-BU
DA
327-PK-10
ON (KEY)
200-BK-18
200-BK-18
D816-WH-18
2
H
A588-GN-18
200-BK
1
2
322-GY-18
763-BU-18
109-RD-6
B
F
C400-GN-18
C400-GN-18
10A
H
L4
K915-GN-18
763-BU-18
442-GY-18
109-RD-6
200-BK-18
101-RD-6
104-RD-6
200-BK-18
201-BK-18
200-BK-18
877-YL-18
330-YL-18
200-BK-18
877-YL-8
200-BK-18
877-YL-8
315-GN-18
WASHER
096-0486
B
WH
200-BK-18
YL
616-BU
200-BK-18
BK
RD
FUEL PUMP
103-0367
C400-GN-18
2
200-BK-18
C400-GN-18
142-BU-18
B
200-BK-18
BK/RD
151-GN-18
1
BK/WH
C400-GN-18
5
4
762-YL-18
3
200-BK-18
762-YL-18
107-RD-18
K915-GN-18
142-BU-18
1
142-BU-18
109-RD-6
190-PK-18
124-GN-18
2
315-GN-18
A
200-BK-18
142-BU-18
190-PK-18
DOME LAMP
096-0721
200-BK-18
200-BK-6
142-BU-18
612-GY-18
D815-PU-18
762-YL-18
762-YL-18
190-PK-18
K915-GN-18
762-YL-18
ENG/PUMP CONT
SOL
126-9992
309-GY-18
190-PK-18
762-YL-18
201-BK-18
200-BK-18
200-BK-18
124-GN
16
15
332-BU-18
142-BU-18
HORN RELAY
161-3128
762-YL-18
142-BU-18
200-BK-18
320-OR-18
SLOW MODE
CONT SW
121-1132
762-YL-18
200-BK
124-GN-18
200-BK-18
142-BU-18
190-PK-18
2
RD-14
TRAVEL
PRESS. SW
106-0179
CHASSIS
124-GN
200-BK-18
K915-GN-18
D746-PK-18
612-GY-18
190-PK-18
109-RD-6
BK
PRESS. SW
106-0179
WH/YL
200-BK-10
WH/GN
124-GN-18
YL
NEG
POS
200-BK-18
A
14
200-BK-18
762-YL-18
PRESS. SW
106-0179
200-BK-18
762-YL-18
142-BU-18
D816-WH-18
200-BK-18
A
4
ATCH
TRAVEL
PRESS. SW
106-0179
13
762-YL-18
817-WH-18
406-PU-18
200-BK-18
WH/BU
BOOM DECOMPRESSION SW
163-6662
616-BU
200-BK
104-RD-10
307-OR-18
104-RD-10
327-PK-10
BATTERY
3T-5760
ATCH
BATTERY
9X-3404 (NOTE B)
D814-GY-18
5
612-GY-18
320-OR-18
B965-GY-18
2
104-RD-14
200-BK-18
1
762-YL-18
142-BU-18
T
877-YL-8
310-PU-18
405-GY-18
107-RD-14
309-GY-18
513-OR-18
FUSE
132-1862
6
K906-GN-18
COOLANT TEMP SW
085-5121
112-PU-10
506-PU-18
200-BK
513-OR-18
ATCH
BOOM LAMP
153-2521
D
109-RD-14
3
START CONT
RELAY
122-5545
P
L
R
S
4
5
GROUND
1
2
RD
BK
200-BK-18
OFF
PREHEAT
YL
332-BU-18
306-GN-18
WH
405-GY-18
513-OR-18
BK
330-YL-18
877-YL-18
442-GY-18
309-GY-18
441-OR-18
447-PK-18
YL
403-GN-18
442-GY-18
D746-PK-18
441-OR-18
405-GY-18
315-GN-18
877-YL-8
323-WH-18
877-YL-18
104-RD-6
101-RD-6
+
109-RD-6
109-RD-6
406-PU-18
BR
R1
D814-GY-18
B
200-BK-18
327-PK-10
190-PK-18
441-OR-18
309-GY-18
200-BK-18
442-GY-18
142-BU-18
D816-WH-18
513-OR-18
200-BK-18
A588-GN-18
ONE TOUCH
LOW IDLE SW
136-0196
200-BK
DISCONNECT
SW
7N-0718
L25
315-GN-18
763-BU-18
124-GN-18
406-PU-18
WORK MODE
CONT SW
121-1131
200-BK-18
447-PK-18
877-YL-18
B
A
L7
B
C
SIGNAL
C
330-YL-18
R2
+BATTERY
GROUND
PU
L22
YL
BK
1
612-GY-18
142-BU-18
PLATFORM
612-GY-18
200-BK-18
509-WH-18
200-BK-18
BU
323-WH-18
CAB
L18
612-GY-18
L2
364-BU-18
142-BU-18
508-PU-18
142-BU-18
142-BU-18
200-BK-18
A
2
612-GY-18
10A
200-BK-18
4
CHASSIS
127A
307-OR-18
616-BU
332-BU-18
612-GY-18
142-BU-18
612-GY-18
A
142-BU-18
612-GY-18
3
ACC
START
ON
322-GY-18
513-OR-18
4
B
C
D816-WH-18
OPERATOR STATION
NEUTRAL START
LIMIT SW
125-7330
WIPER MOTOR
127-3758
HORN SW
136-0196
BOOM
DECOMPRESSION SOL
162-3685
ATCH
REFRIGERANT SW
125-1642 (NOTE A)
ENG SHUTDOWN
TIMER
138-5190
K906-GN-18
A
F
E
D
9 8 7
200-BK
C
B
A
F
E
D
C
B
A
A
107-RD-18
6 45
104-RD-10
3 2 1
9 8 7 6 45 3 2 1
EE
125-4735
132-1872
116-0080
167-3541
125-4801
A-4
A-4
A-4
A-5
D-9
NOTE A : NORMALLY OPEN BEFORE REFRIGERANT CHARGE.
TO MACHINE STRUCTURE
(167-3521)
CONN1
CONN8
CONN6
CONN5
CONN4
CONN3
CONN2
CONN9
CONN10 CONN11
CONN12
CONN13 CONN14
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.
GAUGE CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE/PUMP CONTROL CIRCUIT.
OPERATOR MONITOR CIRCUIT.
START AID CIRCUIT.
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H
G
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