©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR6144-02
December 1995
5080 Excavator
Electrical System
6XK1-UP
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
4I-5387 Front Linkage Pressure 490 ± 49 kPa MAX
(71.0 ± 7.1 psi)
290 kPa MIN
(42.0 psi MIN)
Normally Open
6T-1546 Engine Oil Pressure 93.0 ± 20.8 kPa
(13.5 ± 3.0 psi)
68.9 ± 20.8 kPa
(10.0± 3.0 psi)
1-3 Normally Closed
1-2 Normally Open
8N-1693 Engine Coolant Temp (Start Aid) 37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80.0°F MIN)
Normally Closed
Part No. Component Description Resistance (Ohms)¹
102-8014 58 ± 2.9
101-1759 14.4 ± 0.6
110-6465 5.12 ± 0.26
7T-9746 33.6
9G-4365 6
¹ At room temperature unless otherwise noted.
Resistor, Sender and Solenoid Specifications
Resistor - Eng/Pump Sol. Valve
Solenoid - Engine Shutdown
Solenoid - Start Aid
Solenoid - A/C Compressor Clutch
Solenoid - Bypass
Related Electrical Service Manuals
Title Form Number
Alternator (5S-9088):
Consist No. 3E-7578 (26SI)
Consist No. 9G-9538 (N3)
Consist No. 6T -7223
_
SENR2082
SENR4130
Alternator (3E-7577):
Consist No. 3E-7577 (26SI) -
Engine And Pump Electronic Control
SENR6155
Starting Motor (6V-5539):
Consist No. 6V-5540 (KE)
Consist No. 6V-5582 (F8)
Consist No. 106-8554 (42MT)
SENR3536
SENR4975
SENR3581
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
1 Actuator - Governor A-12 4D Relay - Washer B-5
1A Alarm - Action D-2 4D Relay - Wiper B-6
9E Alarm - Travel B-10 1C Resistor F-6
2 Alternator E-12 3D Seat Heater F-4
3 Antenna D-8 19 Sender - Hydraulic Oil Temperature A-10
4 Battery A-2, F-11 16 Sensor - Engine Coolant Temperature E-11
1D Block - Terminal B-4, C-4 17 Sensor - Engine Speed D-11
2D Breaker - Alternator C-4 18 Sensor - Fuel Level E-10
5 Control - Engine Pump B-8 20 Solenoid - Air Conditioner Compress Clutch F-12
7D Control - Engine Shutdown A-4 36 Solenoid - Bucket Close C-8
3C Control- Operator L.H. F-4 35 Solenoid - Bucket Open C-8
3B Control- Operator R.H. E-4 4E Solenoid - Bypass 1 D-10
29 Conditioner - Air E-7 8E Solenoid - Bypass; 2 C-10
3D Fuse - Block B-5, 6 1E Solenoid - Engine/Pump D-10
7 Horn F-1 21 Solenoid - Engine Shutdown E-11
9 Lamp - Cab D-1, F-1 22 Solenoid - Start Aid F-12
10 Lamp - Chassis C-1, F-1 6E Solenoid - Swing Power E-10
5A Lamp - Dome D-4 2E Solenoid - Travel Speed D-10
2A Lighter - Cigar D-4 24 Switch - A/C Rcvr E-11
3A Meter - Service D-4 4B Switch - Backup Accel E-5
4A Monitor D-2 25 Switch - Disconnect A-2
11 Motor - Starter C-12 26 Switch - Engine Oil Pressure C-11
12 Motor - Washer E-10 10E Switch - Front Linkage D-10
13 Motor - Lower Wiper D-2 32 Switch - Fuel Level F-10
9 Motor - Upper Wiper D-2 2B Switch - Governor Backup E-6
33 Pump - Refueling F-10 27 Switch - Neutral Start F-2
15 Radio D-8 2C Switch - Pump Backup F-5
4D Relay - Bucket Close A-5 31 Switch - Refueling Pump Start F-11
4D Relay - Bucket Open A-5 31 Switch - Refueling Pump Stop F-10
4D Relay - Cab Lamp A-6 4C Switch - Seat Heater F-4
4D Relay - Chassis Lamp A-6 5B Switch - Key Start D-4
4D Relay - Headlamp A-5 6B Switch - Start Aid D-3
4D Relay - Horn B-5 28 Switch - Start Aid Coolant Temperature D-11
5D Relay - Main C-4 7E Switch - Swing Pressure E-10
4D Relay - Refueling Pump A-6 1B Switch - Throttle Position D-4
34 Relay - Refueling Pump (Atch) A-2 5E Switch - Travel Pressure D-10
6D Relay - Start B-4 6A Switch - Windshield D-2
Machine locations are repeated for components located close together.
A = Components in cab.
B = Components in operators right hand console.
C = Components in operators left hand console.
D = Components in relay panel.
E = Components near main control valve.
Component Location
Connectors
Connector No. &
Machine Location
Harness And/Or Components
Schematic
Location
Connectors
Connector No. &
Machine Location
Harness And/Or Components
Schematic
Location
CONN3
Y - 123-8309
8 - 123-8311 F-8
CONN31
C-114-3096
Engine Oil Pressure Switch C-12
CONN1
*
A-123-8310
Control A-8
CONN29
C-114-3096
Eng. Coolant Temperature Sensor E-11
CONN52
A -123-8310
D -123-8313 B-3
CONN90
*
L - 123-8564
Cab Lamp LH E-1
CONN71
A - 123-8310
Y - 123-8309 E-9
CONN91
*
L - 123-8564
Cab Lamp Middle D-1
24 Contacts
CONN2
*
A -123-8310
Control B-8
CONN92
*
L - 123-8564
Cab lamp RH D-1
CONN4
Y - 123-8309
8 -123-8311 E-8
CONN78
*
T-123-8316
Head Lamp D-2
CONN33
A - 123-831 0
C -114-3096 B-12
CONN79
*
T-123-8316
Head Lamp D-2
CONN12
8-123-8311
G - 114-4253 E-4
CONN75
A -123-8310
D - 123-8313 B-2
CONN15 8-123-8311
K - 6C-9031 D-5
CONN76
D -123-8313
T - 123-8316 A-2
CONN7
8-123-8311
N - 129-8076 F-6
CONN41 A -123-8310
8ypass 1 Solenoid D-10
CONN8
8 - 123-8311
W - 102-7941 E-6
CONN47 A -123-8310
8ypass 2 Solenoid C-10
CONN72
A - 123-831 0
Y - 123-8309 E-9
CONN38 A - 123-831 0
Fuel Level Sensor E-10
7 Contacts
CONN53
A - 123-831 0
Engine Shutdown Control A-4
CONN55
A - 123-8310
Grease Pump B-2
CONN85
A -123-8310
SS -121-7164 F-11
CONN43 A - 123-831 0
Front Linkage Switch D-10
CONN70 A - 123-831 0
Auto Lubrication Pump A-7
CONN46 A -123-8310
Eng/Pump Solenoid D-10
CONN37
A - 123-831 0
Governor Actuator A-12
CONN26
A-123-8310
Start Aid Solenoid F-12
CONN80 8-123-8311
Conditioner Group D-7
CONN40 A-123-8310
Swing Power Solenoid E-10
CONN18 G - 114-4253
Throttle Position Switch D-4
CONN39 A - 123-8310
Swing Pressure Switch E-10
CONN32
A - 123-831 0
C - 114-3096 B-12
CONN48 A - 123-8310
Travel Alarm B-10
CONN51
A -123-8310
S - 7Y-8226 A-8
CONN42 A-123-8310
Travel Pressure Switch D-10
CONN14 8 - 123-8311
E -123-8308 D-5
CONN45 A -123-8310
Travel Speed Solenoid D-10
CONN16 8 - 123-8311
K - 6C-9031 D-4
CONN84 8 -123-8311
E - 123-8308 D-6
CONN23 E -123-8308
Radio D-8
CONN44
N - 129-8076
Seat Heater F-4
CONN20 K - 6C-9031
Monitor D-3
CONN24
H - 7Y-8290
Z - 7Y-5504 F-1
CONN88
*
E -123-8308
Top Wiper Motor E-3
CONN27
C-114-3096
Air Cond. Compress Clutch Sol. F-12
CONN82
*
R - 6C-9177
Bottom Wiper Motor E-2
CONN28
C - 114-3096
Air Conditioner Rcvr Switch F-11
CONN89 E - 123-8308
R - 6C-9177 E-3
CONN30
C -114-3096
Engine Speed Sensor D-12
CONN83
8-123-8311
J -114-4256 F-4
CONN17 G -114-4253
Start Aid Switch E-4
CONN74
N - 129-8076
Auto Lubrication Switch F-5
CONN62
K - 6C-9031
Action Alarm D-2
Connectors
Machine Location
Connector No.
and
Harness And/Or Components
Schematic
Location
Connectors
Harness And/Or Components
Schematic
Location
CONN93 K - 6C-9031
Service Meter
D-5
CONN34
A -123-8310
C -114-3096
B-12
CONN81 K - 6C-9031
E -123-8308
D-2
CONN35
A - 123-831 0
C - 114-3096
B-12
CONN5 N - 129-8076
Seat Heater Switch
F-5
CONN36
A -123-8310
C-114-3096
B-12
CONN66
SS -121-7164
Refueling Pump Start Sw. (N.O.)
F-11
CONN60 G - 114-4253
Low Idle Switch
E-4
CONN86
SS -121-7164
Refueling Pump Stop Sw. (N.C.)
F-10
CONN61 J - 114-4256
Horn Switch
F-3
CONN67
SS -121-7164
Refueling Pump Motor
F-10
CONN64 J - 114-4256
Bucket Close Switch
F-3
CONN68
A -123-8310
Bucket Open Solenoid
C-9
CONN65 G - 114-4253
Bucket Open Switch
E-4
CONN69
A -123-8310
Bucket Close Solenoid
C-9
CONN73
B - 123-8311
Z - 123-8309
F-2
3 Contacts
2 Contacts
40 Contacts
10 Contacts
Harness Connector Location Chart
HARNESS CONNECTOR LOCATION CHART
1 Contact
2 Contacts
6 Contacts
5 Contacts
4 Contacts
Bullet
Terminal
E = Connector near main control valve.
* Connector is located at the component.
A = Connector in cab.
B = Connector in operator's R.H, console.
C = Connector in operator.s L.H. console.
D = Connector in relay panel.
Machine Location
Connector No.
and
A
3
4
5
6
9
10
11
12
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
34
36
7
A
3
5
6
9
10
11
12
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
34
36
10
7
1
2
3
4
5
6
7
8
9
10
11
35
13
14
15
16
17
18
19
20
21
22
23
24
34
33
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
34
13
14
15
16
17
18
19
20
33
22
23
24
21
35
27
28
29
30
31
32
4
4
38
37
36
4
7
9
10
37
36
Machine Harness Connector and Component Locations
50801
1
2
4
5
6
8
9
10
11
12
13
4
5
6
8
9
10
1
2
7
AREA E
50806
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
3
4
5
6
1
2
3
4
5
6
1
2
7
AREA A
50802
AREA B
50803
3
4
5
6
1
2
3
4
5
6
2
7
1
2
3
4
5
1
1
1
2
AREA C
50804
AREA D
50805
3
37
36
34
35
6
A
1
A
3
C
35
33
28
29
30
3
B
1
C
2
C
4
B
1
31
8
7
1
D
35
2
A
3
A
4
A
21
11
2
3
4
5
6
32
4
E
1
E
2
B
13
E
1
A
5
A
1
A
6
C
13
14
9
10
1
B
8
A
8
E
24
2
E
3
A
2
C
5
E
10
E
12
E
20
22
23
17
18
7
17
9
E
11
E
6
E
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
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.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
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 Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
7Y-5445
2
5
4
3
201-BK
113-OR
201-BK
3
4
3
4
103-YL
323-WH
1112
12 11
10
10
2
1
4
F
E
D
C
B
A
9
8
7
9
8 7
6 5 4
6
5
4
3 2
1
F
E
D
3 2 1
D39004
C
B
A
3
4
2
A770-PK
2
1
2
1
GN
GN
BK/PK-14
B733-YL
1
2
172-GN
B733-YL
BK-14
GN
GN
YL
BK
4
1
3
BK
RD
RELAY BOX
403-GN
201-BK
129-BU
200-BK
201-BK
B955-YL
B956-PK
113-OR
410-WH
118-GY
GN
501-GN
535-BU
500-BR
521-YL-14
B749-GN
A771-PU
200-BK
B749-GN
200-BK
200-BK
A771-PU
B783-OR
142-BU
BR
GN
BU
PK
BK-18
BK
GN
1
2
BK-18
1
2
2
1
235-BK-14
2
1
2
1
2
B783-OR
B737-GN
B737-GN
BK
1
RD
513-OR-14
1
185-YL-14
2
FUSE & RELAY PANEL
BK-18
WH-18
RELAY BOX
RELAY BOX
FUSE & RELAY PANEL
FUSE & RELAY PANEL
RELAY BOX
3
5
5I-8250
WINDSHIELD
SW
9G-2795
A769-GY
1
2
B730-OR
235-BK
B731-WH
A768-BU
439-YL
A447-PK
235-BK
439-YL
A447-PK
200-BK
439-YL
A447-PK
103-YL
200-BK-14
124-GN-14
SW
7X-6387
DISCONNECT
SWITCH
7N-0719
ATCH
MAIN RELAY
101-7740
(NOTE A)
1
2
615-YL
1
2
ANTENNA
AERIAL
6C-3431
ATCH
CAB LAMP
5I-8250
CONN 90
L
ATCH
CAB LAMP
HARNESS AS.
OPERATOR STATION
OPERATOR STATION
OPERATOR STATION OPERATOR STATION
LOCPART NO.IDENT
CIRCUIT GROUPING
DESIGNATION
#L
2
1
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
AM / FM RADIO
108-9968
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
A
123-8310
B
123-8311
C
114-3096
D
123-8313
E
123-8308
G
114-4253
H
7Y-8290
J
114-4256
K
6C-9031
M
117-7029
N
129-8076
R
S
T
123-8316
6C-9177
E-2
CABLE AS.
AA 7Y-8294 A-2
BB A-2
CC A-2
DD
EE 7Y-8298
FF 7Y-8299
GG 7Y-5444
HH
JJ
7Y-5446
THIS SCHEMATIC IS FOR THE 5080 EXCAVATOR (7Y-3917 V00).
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
+BATTERY
DATA +
DATA -
GROUND
1
2
ACTION ALARM
9G-9813
105-BR
307-OR
308-YL
DOME LAMP
6C-9121
KEY START
SW
9G-7641
GROUND
BUCKET
CONT. GP LH
113-2531
CONT. GP RH
113-2531
CLOSE RH-SW
LH-SW
185-YL-14
200-BK
200-BK-14
200-BK
185-YL-14
200-BK-14
235-BK-14
235-BK
235-BK
201-BK
201-BK
BK-00
CHASSIS
NN
NEUTRAL
START SW
9W-2150
10
29
1
2
3
6
7
8
9
4
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
5
30
31
32
33
34
35
36
37
38
39
40 185-YL-14
A Y
A755-PK
A756-BU
A757-GY
A758-BR
326-PU
105-BR
310-PU
B955-YL
B956-PK
410-WH
403-GN
308-YL
A768-BU
B730-OR
B731-WH
A769-GY
B740-OR-14
B790-OR-14
B739-WH-14
B789-BR-14
B751-YL-14
A763-GY-14
118-GY
500-BR
535-BU
501-GN
607-PK-14
129-BU
306-GN
113-OR
322-GY
320-OR
D777-PU
146-GY
124-GN-14
521-YL-14
B734-GY
B738-BR
120-YL
615-YL-14
103-YL
10
1
2
3
4
5
9
8
7
6
B786-BU
A539-BU
A540-WH
NN
CHASSIS
LAMP
5I-8250
R
C
S
B
OFF
ON
ST
POS NEG
POS
NEG
BATTERY
9X-9731
A755-PK
A756-BU
A757-GY
ATCH-SEAT
HEATER
PROVISION
AUTO-LUB
SW
ATCH-SEAT
HEATER SW
7X-6386
121-6959
124-GN
200-BK
124-GN
200-BK
200-BK
200-BK
140-BU
200-BK
A758-BR
HORN SW
GN
YL
BU
GY
BK
RD
J
B
A540-WH
326-PU
A539-BU
200-BK
105-BR
B786-BU
A540-WH
A539-BU
200-BK
200-BK
140-BU140-BU
140-BU
200-BK
RESISTOR
102-8014
NN
763-BU
A758-BR
A757-GY
B731-WH
A756-BU
310-PU
B955-YL
B956-PK
410-WH
403-GN
308-YL
B783-OR
A768-BU
B730-OR
A771-PU
B737-GN
B749-GN
B733-YL
763-BU
A540-WH
B731-WH
S
A769-GY
B786-BU
B740-OR-14
B790-OR-14
B739-WH-14
B789-BR-14
B751-YL-14
A763-GY-14
200-BK
311-WH
4
3
2
1
201-BK
405-GY
788-YL
A762-PU
327-PK
201-BK
113-OR
403-GN
521-YL-14
492-GY
GG
HH
JJ
118-GY
500-BR
535-BU
501-GN
ENGINE
START AID
3E-7886
ENGINE
SHUTDOWN
110-6465
BK-00
RD-00
RD-00
327-PK
109-OR-4
304-WH-8
101-RD-4
200-BK
200-BK-4
A761-PU
BK-00
RD-00
BK-00
109-OR-4
113-OR
492-GY
201-BK
327-PK
113-OR
200-BK
492-GY
201-BK
200-BK
521-YL-14
403-GN
327-PK
200-BK-4
200-BK
200-BK-4
403-GN
326-PU
200-BK
521-YL-14
201-BK
492-GY
200-BK
113-OR
CHASSIS
B955-YL
607-PK-14
129-BU
109-OR-4
306-GN
113-OR
1
2
B751-YL-14
A763-GY-14
235-BK
YL
BU
PU
BK
5
4
3
2
1
SIG
521-YL-14
311-WH
492-GY
200-BK
403-GN
113-OR
201-BK
405-GY
327-PK
A762-PU
788-YL
506-PU
495-GN
321-BR
121-YL
322-GY
320-OR
124-GN-14
521-YL-14
629-PK
120-YL
GND
OR
FUEL
LEVEL
SENSOR
105-9993
24V+
M
SIG
GND
5V+
A539-BU
615-YL-14
103-YL
A768-BU
140-BU
A539-BU
A768-BU
A540-WH
A754-GY
586-BR
200-BK
492-GY
403-GN
A761-PU
A762-PU
788-YL
113-OR
325-PK
BUCKET
CLOSE
4I-6158
SENDER
4I-5394
495-GN
491-PK
101-RD-4
327-PK
326-PU
121-YL
615-YL-14
L28
113-OR
120-YL
124-GN-14
103-YL
129-BU
501-GN
500-BR
506-PU
105-BR
320-OR
322-GY
306-GN
304-WH-8
308-YL
109-OR-4
585-YL
200-BK
403-GN
109-OR-4
304-WH-8
101-RD-4
A763-GY-14
521-YL-14
439-YL
113-OR
120-YL
124-GN-14
103-YL
129-BU
A540-WH
501-GN
500-BR
310-PU
105-BR
320-OR
322-GY
306-GN
308-YL
A769-GY
265-BK
BUCKET
CLOSE
RELAY
7Y-5490 / 3E-6477
BUCKET
OPEN
RELAY
7Y-5490 / 3E-6477
B789-BR-14
B739-WH-14
B790-OR-14
B740-OR-14
B731-WH
B730-OR
A758-BR
A757-GY
A756-BU
A755-PK
615-YL-14
B751-YL-14
629-PK-14
607-PK-14
B956-PK
410-WH
535-BU
118-GY
B786-BU
A540-WH
586-BR
320-OR
585-YL
586-BR
200-BK
107-WH
200-BK
327-PK
A539-BU
MOTOR
WASHER
MOTOR
7T-8890
CHASSIS
140-BU
101-RD-4
304-WH-8
109-OR-4
788-YL
A762-PU
325-PK
327-PK
405-GY
113-OR
140-BU
365-YL
365-YL
B957-GN
168-GN
B957-GN
168-GN
BUCKET
2
ATCH
FUEL
LEVEL SW
5C-6108
1
109-OR-4
403-GN
SS
101-RD-4
492-GY
535-BU
118-GY
607-PK-14
SS
L28
4
113-OR
A761-PU
235-BK
A763-GY-14
B751-YL-14
B751-YL-14
ENGINE
GOVERNOR
ACTUATOR
7Y-5468
A763-GY-14
A761-PU
235-BK
113-OR
5
7
RD-18
200-BK
585-YL
506-PU
BK-18
2
B786-BU
118-GY
535-BU
410-WH
B956-PK
607-PK-14
1
BU-18
OR-18
615-YL-14
629-PK-14
629-PK-14
A755-PK
113-OR
A756-BU
A757-GY
A758-BR
321-BR
B730-OR
A761-PU
B731-WH
+ BATTERY
GROUND
ENG SOL
B740-OR-14
405-GY
RESET
OFF (KEY)
OFF
B790-OR-14
491-PK
B739-WH-14
B789-BR-14
308-YL
306-GN
322-GY
320-OR
105-BR
500-BR
501-GN
129-BU
103-YL
124-GN-14
120-YL
113-OR
103-YL
B786-BU
410-WH
B956-PK
114-GN
A755-PK
A756-BU
A757-GY
A758-BR
B730-OR
B731-WH
B740-OR-14
B790-OR-14
B739-WH-14
B789-BR-14
A540-WH
140-BU
B955-YL
326-PU
140-BU
586-BR
A539-BU
B955-YL
A540-WH
A540-WH
A539-BU
A539-BU
585-YL
ALT
SOL
9G-4365
GROUND
G
S
MTRBAT
MOTOR
101-RD-4
SIGNAL
BK
YL
OR
STARTER
6V5539
365-YL
L27
L28
A
C
B
+
R
BYPASS 2
7T-9746
COLD WEATHER
BYPASS 1
7T-9746
1
2
L14L14
W
W W
4
6
6
7
8
9
5
4
3
2
1
10
L22
L22
L20
L19
L20
L19
L9
L2
W
B957-GN
B957-GN
320-OR
322-GY
109-OR-4
L13
L11
L10L10
L11
L9
L2
L13
201-BK
L12L11
L10
L7
L4
L3
113-OR
L12
L6
L8
L6
101-RD-4
L5
L4
L7
L8
201-BK
L8
L7
L6
L1
L5
121-YL
172-GN
365-YL
365-YL
168-GN
168-GN
607-PK
A983-BU
L3
L5
9
10
9
304-WH-8
10
792-OR
NB
L16
535-BU
506-PU
L21
791-PK
501-GN
118-GY
129-BU
142-BU
500-BR
140-BU
105-BR
124-GN-14
107-WH
120-YL
103-YL
184-BU-14
615-YL-14
629-PK-14
629-PK-14
112-PU-12
101-RD-14
101-RD-14
112-PU-12
112-PU-14
112-PU-14
112-PU-14
101-RD-14
1
32
506-PU
495-GN
5
2 3
101-RD-14
101-RD-14
101-RD-14
201-BK
L27
SS
ATCH REFUELING
PUMP RELAY
ATCH-HP LAMP
RELAY 7Y-5490 /
3E-6477
3E-6477
7Y-5490 / 3E-6477
REFUELING
168-GN-14
20A
SSSS
495-GN
G
103-YL
615-YL-14
120-YL
521-YL-14
124-GN-14
320-OR
322-GY
113-OR
306-GN
129-BU
607-PK-14
629-PK-14 629-PK-14
501-GN
535-BU
500-BR
118-GY
A763-GY-14
B751-YL-14
B789-BR-14
B739-WH-14
B790-OR-14
B740-OR-14
A769-GY
B731-WH
B730-OR
A768-BU
308-YL
403-GN
410-WH
B956-PK
B955-YL
310-PU
105-BR
326-PU
A758-BR
L21
L15
322-GY
124-GN
101-RD-14
109-OR-4
200-BK-4
101-RD-4
327-PK
326-PU
308-YL
121-YL
L29
140-BU
615-YL-14
184-BU-14
200-BK
792-OR
A983-BU
791-PK
A539-BU
A540-WH
A447-PK
185-YL-14
120-YL
124-GN-14
103-YL
129-BU
7Y-8226
140-BU
L1
501-GN
500-BR
506-PU
172-GN
10A
140-BU
KK
115-PK-14
15A
112-PU-14
142-BU
105-BR
112-PU-14
10A
10A
L16
115-PK-14
116-BR-14
615-YL
607-YL
615-YL
607-YL
607-YL
615-YL
607-YL
615-YL
791-PK
615-YL-14
320-OR
200-BK
200-BK
PLATFORM
140-BU
A540-WH
791-PK
2
L15
NN
115-PK-14
E
103-YL
200-BK-14
200-BK
8103-YL/RD
K
K
615-YL-14
L1
N
A447-PK
607-PK-14
120-YL
439-YL
1
B789-BR
311-WH
200-BK
A762-PU
788-YL
201-BK
405-GY
267-BK
266-BK
265-BK
264-BK
16
9
24
4
11
5
2
8
22
10
235-BK-14
14
3
18
23
6
12
21
15
20
7
19
17
1
31
21
11
23
26
410-WH
27
30
20
7
B956-PK
A755-PK
40
A756-BU
36
A757-GY
19
6
9
8
29
39
38
37
28
13
10
A758-BR
15
16
14
129-BU
403-GN
629-PK
B955-YL
B956-PK
113-OR
410-WH
501-GN
535-BU
500-BR
118-GY
201-BK
200-BK
201-BK
25
35
12
B730-OR
1
B731-WH
B
500-BR
22
32
33
34
2
B740-OR-14
13
B790-OR-14
ONE TOUCH
LOW IDLE SW
5
B739-WH-14
B789-BR-14
PREHEAT
RS232 RXD
RS232 TXD
792-OR
BYPASS SOL 1
HEAVY LIFT SOL 1
B955-YL
501-GN
A537-PK
B790-OR
A757-GY
B
A756-BU
A755-PK
G
GOV ACT BU SW +
185-YL-14
172-GN
607-PK-14
B730-OR
B751-YL-14
A763-GY-14
B789-BR-14
B739-WH-14
B790-OR-14
B740-OR-14
B790-OR
6
4
A
A
A
113-OR
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAGE.
NOTE A : USE WITH ATCH REFUELING PUMP
NOTE B : USE WITH ATCH HIGH POWER LAMP
MONITOR
111-4749
521-YL-14
311-WH
5
B751-YL-14
A763-GY-14
403-GN
GOV ACT BU SW -
FUSE
10A 9W-1442
15A 9W-1441
20A 9W-1446
C-4
C-4
304-WH-8
C-4
A983-BU
405-GY
F-11
535-BU
506-PU
4
2
17
310-PU
F-11
F-12
F-8
C-12
1
2
7Y-5503
7Y-5502
7Y-5501
7Y-8297
3
235-BK
1
A-2
405-GY
403-GN
492-GY
B786-BU
320-OR
MM
LL
KK
E-2
E-6
OPTION VALVE -
311-WH
A-2 NOTE B
4
200-BK
N
F-5
7Y-3881
7Y-8295
A-8
F-1
D-1
D-5
L
123-8564 E-1 NOTE B
F-4
B-12
OPTION VALVE +
A
BB
AA
OPTION SENSOR
WIPER
RELAY
7Y-5490 / 3E-6477
WASHER
RELAY
7Y-5490 / 3E-6477
DD
CC
EE
GG
AA
A
A
A
A
A
A
A
320-OR
322-GY
308-YL
326-PU
105-BR
HORN
RELAY
7Y-5490 / 3E-6477
322-GY
114-GN
A539-BU
BK
310-PU
607-PK-14
306-GN
2
5I-8368
TRAVEL
SPEED
7I-1245
B786-BU
1
ATCH
ALTERNATOR
3E-7577
ALTERNATOR
5S-9088
322-GY
10A
10A
LOW IDLE SW
B786-BU
GOV ACT +
EP SOL -
10A
EP SOL +
ACCEL SW TERM S1
ACCEL SW TERM S2
118-GY
NN 7Y-8299
ACCEL SW TERM S3
326-PU
306-GN
WH-18
YL-18
6
ACCEL SW TERM S4
DATA -
GOV ACT -
DATA +
FAULT ALARM
KEY SW ON 308-YL
15A
10A
20A
10A
20A
OPTION SW 2
3
A755-PK
OPERATOR STATION
BY
A769-GY
A756-BU
A757-GY
A758-BR
7
200-BK
S4
S3
S2
S1
COM
CAB RISER
C
C
C
C
C
C
112-PU-14
C
C A
A
A
A
A
A
112-PU-14
184-BU-14
142-BU
140-BU
103-YL
120-YL
121-YL
SHUTDOWN
HEATER
W
B
JJ
MM
F-9
LL
B
B B
COOLANT LEVEL SW
B H
H
A755-PK
K
K
K
X
M
X
E M
L
E
L
GROUND
235-BK
308-YL
D A
585-YL
586-BR
200-BK
B956-PK
FRONT
LINKAGE
SW
4I-5387
20A
20A
129-BU
112-PU-12
113-OR
112-PU-12
101-RD-14
RADIO
SWING
121-YL
MONITOR
120-YL
10A
BYPASS SOL 2
OPTION RELAY 1
129-BU
172-GN
306-GN
304-WH-8
308-YL
109-OR-4
OPTION RELAY 2
CHASSIS RELAY
142-BU
113-OR
SOLENOID
WASHER RELAY
WIPER RELAY
792-OR
A983-BU
CIGAR
CHASSIS
LAMP
RELAY
7Y-5490 /
8
5
6
10
9
4
B
791-PK
CAB
LAMP
RELAY
7Y-5490 / 3E-6477
306-GN
2
535-BU
E-4
791-PK
FRONT LINK PR SW
ATCH PRESS. SW
B749-GN
3
HARN CODE 1
HEAVY LIFT SOL 2
GREASE
107-WH
124-GN-14
1
4
KEY
10A
10A
112-PU-14
112-PU-14
112-PU-14
109-OR-4
109-OR-8
5
140-BU
629-PK-14
109-OR-4
109-OR-8
101-RD-14
200-BK
308-YL
304-WH-8
200-BK
321-BR
A
306-GN
112-PU-12
ALT
BREAKER
9S-4693
112-PU-12
BACKUP
172-GN
112-PU-14
101-RD-14
118-GY
105-BR
506-PU
535-BU
A983-BU
501-GN
792-OR
326-PU
500-BR
X
3
SWING POWER SOL
WORK MODE 1 SOL
TRAVEL PR SW
SWG BRK PR SW
HARN CODE 2
ACCEL
7N-8008
HARN CODE 3
HARN CODE 4
GOVERNOR
3T-4405
A770-PK
START
RELAY
9X-8124
MAIN RELAY
3T-0376
101-RD-14
TRAVEL PRESS
SW
4I-5387
ENGINE
SHUTDOWN
CONTROL
80
A769-GY
SWING
POWER
6I-6826
10A
4
POS
NEG
POSNEG
BATTERY
9X-9731
B783-OR
A769-GY
535-BU
F-2
114-GN
118-GY
607-PK-14
184-BU-14
BK-18
HORN
114-GN
CONTROL
103-YL
TR ALARM
DOME LAMP
140-BU
WIPER
615-YL-14
200-BK
SWING
SW
4I-5387
1
2
A768-BU
A
615-YL
ENG OIL
SW
6T-1546
103-YL
ENGINE
COOLANT
TEMP
8N-1693
A/C RCVR
114-5334
120-YL
7Y-5504
A
G
G
C
A768-BU
403-GN
403-GN
RD-18
2
CHASSIS
201-BK
200-BK
439-YL
A447-PK
A763-GY-14
B751-YL-14
+BATTERY
311-WH
521-YL-14
+B
3
L30
235-BK
201-BK
C
C
C
C
201-BK
A758-BR
A757-GY
A756-BU
L30
185-YL-14
124-GN
113-OR
185-YL-14
2
1
185-YL-14
185-YL-14
3
2
1
185-YL-14
185-YL-14
6
8
4
3
12
5
310-PU
308-YL
7
6
5
4
235-BK
3
2
1
113-OR
CHASSIS
BACK UP SW B
323-WH-14
168-GN
B957-GN
A755-PK
40
39
38
37
36
35
34
33
32
31
30
5
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
4
9
8
7
6
3
2
1
29
10
BU-18
788-YL
140-BU
107-1994
CONDITIONER GP
1
9
3
2
105-BR
6
7
E
B
Z
F-8123-8309
5
A
F-8
6C-9134
2
1
101-RD-14
112-PU-14
235-BK
10
607-PK-14
10
Y
D
BK
322-GY
501-GN
200-BK
535-BU
501-GN
200-BK
535-BU
H
A447-PK
791-PK
A540-WH
607-PK-14
8
9
CHASSIS
CHASSIS
4
18
Z
8
5
7
6
3
1
4
2
BLOCK AS.
9G-8451
BLOCK AS.
9G-8451
BLOCK AS.
9G-8451
4
200-BK
307-OR
1
BK-00
491-PK
BK-00
308-YL
495-GN
5
307-OR
306-GN
A447-PK
Y
310-PU
FF
ENGINE
PUMP
CONTROL
102-8025
4
3
BK-00
6
142-BU
8
2
1
7
2
120-YL
A754-GY
L1
B
B955-YL
439-YL
1
185-YL-14
200-BK
T
2
2
113-OR
B956-PK
B955-YL
200-BK
140-BU
103-YL
A447-PK
16
15
5
19
40
31
39
26
7
38
37
34
33
32
25
30
29
28
27
SS
24
23
22
21
20
35
18
17
14
13
12
11
10
9
8
4
3
2
1
D
BK-00
RD-00
BK-00
RD-00
L29
6
201-BK
1
2
3
TEMP
3E-5370
4
5
201-BK
235-BK
1
172-GN
200-BK
235-BK
235-BK
107-WH
306-GN
200-BK
185-YL-14
B789-BR-14
RD-00
TRAVEL SPD SOL
763-BU
A771-PU
B737-GN
BK-00
410-WH
H
RD-00
615-YL
200-BK
120-YL
322-GY
BK-00
A762-PU
L11
308-YL
3
105-BR
307-OR
326-PU
403-GN
311-WH
310-PU
320-OR
322-GY
140-BU
365-YL
323-WH
365-YL
323-WH
365-YL
323-WH
121-YL
172-GN
607-PK-14
A983-BU
792-OR
535-BU
506-PU
791-PK
501-GN
118-GY
129-BU
185-YL-14
142-BU
500-BR
113-OR
B739-WH-14
B790-OR-14
105-BR
124-GN-14
120-YL
103-YL
266-BK
184-BU-14
615-YL-14
235-BK-14
308-YL
PLATFORM
109-OR-4
101-RD-4
304-WH-8
184-BU-14
200-BK-14
439-YL
200-BK
1
CHASSIS
A768-BU
A
113-OR
L29
A539-BU
A768-BU
535-BU
501-GN 501-GN
118-GY
D
200-BK
A
A
535-BU
501-GN
535-BU
615-YL
629-YL-14
BOLT
200-BK
615-YL
200-BK
615-YL
A768-BU
521-YL-14
BK-00
A769-GY
A
607-PK-14
322-GY
607-PK-14
200-BK-14
200-BK
322-GY
322-GY
200-BK
BK-00RD-00
CHASSIS LAMP
117-YL-14
117-YL-14
629-PK-14
629-PK-14
116-BR-14
HP LAMP
HP LAMP
200-BK
140-BU
200-BK-14
607-PK-14
307-OR
306-GN
A447-PK
B740-OR-14
HORN
7T-0970
HORN
7T-0969
A762-PU
L4
CHASSIS
LAMP
5I-8250
615-YL-14
184-BU-14
103-YL
120-YL
107-WH
124-GN-14
105-BR
113-OR
500-BR
142-BU
185-YL-14
129-BU
118-GY
501-GN
791-PK
788-YL
506-PU
535-BU
185-YL-14
A758-BR
792-OR
521-YL
A983-BU
607-PK-14
365-YL
365-YL
168-GN
B957-GN
168-GN
B957-GN
A
172-GN
36
GOV POSITION
ENGINE SPEED -
121-YL
ENGINE SPEED +
140-BU
ENGINE COOL TEMP
439-YL
200-BK
200-BK-14
140-BU
322-GY
320-OR
586-BR
327-PK
ENGINE OIL PR
326-PU
200-BK
306-GN
107-WH
2
A539-BU
585-YL
Z
7Y-5465
G
A757-GY
ALTERNATOR
3
A763-GY-14
A756-BU
TRAVEL ALARM
140-BU
HYD OIL TEMP
201-BK
HYD OIL LEVEL SW
Y
OPTION RELAY 3
2
J
1
A769-GY
200-BK
A768-BU
TRAVEL
ALARM
3T-1444
FUEL LEVEL
3
308-YL
A
A754-GY
D-5
B-3
235-BK
B751-YL-14
1
615-YL-14
121-7164
200-BK-14
OPERATOR STATION
OPTION SW 1
K
F-10 NOTE A
QQ 130-6573 A-3 NOTE A
PS VALVE
BACKUP
3T-4405
FF
ENG OIL LEVEL SW
326-PU
200-BK-14
103-YL
172-GN
F-9
102-7941W
439-YL
T
A761-PU
BUCKET
OPEN
4I-6158
124-GN-14
6 DIN 46327
BEACON LIGHT
ATCH
A
B733-YL
4
A755-PK
PLATFORM
24
CONN 55
PROVISION
GREASE PUMP
CONN 52
9G-9287
CONN 53
4
D A
D T
D QQ
1
2
1
2
3
CONN 77
CONN 76
CONN 75
123-8314
ATCH CAB
LAMP LH
CONN 73
CONN 24
CIGAR
LIGHTER
9W-0335
1
SERVICE
METER
6T-7337
2
K
K
CONN 93
200-BK
129-BU
201-BK
-
200-BK
129-BU
403-GN
201-BK
403-GN
+
CONN 80
CONN 62
1
2
K E
CONN 81
MOTOR
CAB
L
H
T
1
3
2
BOTTOM
WIPER
6C-8438
R
CONN 89 CONN 82
CONN 88
4
1
3
2
RE
E
1
2
615-YL
200-BK
615-YL
615-YL
200-BK
615-YL
J
G
G
G
CONN 44
CONN 74
CONN 5
CONN 83
CONN 12
CONN 82
BACKUP
START AID
ATCH
THROTTLE
POSITION
SW
CONN 18
2
1
N
BACKUP SW
CONN 16
CONN 15
CONN 14
L17 L17
E
E
629-PK-14
615-YL
629-PK-14
B
2
1
E
2
1
CONN 84
CONN 7
CONN 8
CONN 71
CONN 3
CONN 72
CONN 4
CONN 23
CONN 80
B
CONN 1 A
A
CONN 51
CONN 68
CONN 69
CONN 2
CONN 86
ATCH REFUELING PUMP
START SW (NORMALY OPEN)
119-8311
ATCH REFUELING PUMP
START SW (NORMALY CLOSED)
117-4557
2
1
2
3
4
5
6
1
SS
SS
A
CONN 66
CONN 85
CONN 39
CONN 40
CONN 41
CONN 42
CONN 43
CONN 45
CONN 46
CONN 87
ENG / PUMP
CONN 47
CONN 48
START AID
CONN 26
A/C CLUTCH
101-1759
CONN 27
CONN 28
CONN 29
COOLANT
CONN 31
CONN 34
CONN 35
CONN 36
CONN 32
CONN 33
CONN 37
CONN 17
CONN 70
PROVISION
AUTO-LUB
2
1
200-BK-14
323-WH-14
200-BK
323-WH
200-BK
365-YL
B957-GN
168-GN
SS
ATCH
REFUELING
PUMP
102-6168
MOTOR
CONN 67
HYD OIL
SPEED
CONN 30
BUCKET
OPEN LH-SW
RH-SW
GN
YL
RD
BK
GY
BU
3
CONN 91
L
123-8314
ATCH CAB
LAMP LH
1
2
615-YL
200-BK
615-YL
615-YL
200-BK
615-YL
3
CONN 92
FRAME
L
123-8314
ATCH CAB
LAMP LH
1
2
615-YL
200-BK
615-YL
615-YL
200-BK
615-YL
BOLT
4
501-GN
200-BK
GD CAB
535-BU
MOTOR
L
H
T
1
3
2
TOP
WIPER
6C-9102
365-YL
L24L24
L23
L23 L27
L18 L18
168-GN
168-GN-14
168-GN-14
B957-GN
323-WH-14
365-YL
168-GN
B957-GN
323-WH-14
GD CAB
B957-GN
168-GN
B957-GN
168-GN
1
607-YL
3
123-8314
ATCH
HP LAMP
1
2
3
1
2
200-BK
607-YL
607-YL
200-BK
607-YL
CONN 79
CONN 78
FRAME
TT
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.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE SHUTDOWN CONTROL CIRCUIT.
START AID CIRCUIT.
ENGINE/PUMP CONTROL CIRCUIT.
