Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Travel E-6 1 Relay - Main Power D-3 5
Alternator C-9 2 Relay - Start C-6 5
Assembly - Heater Blower C-4 3 Relay - Start Aid C-6 5
Battery B-9 4 Relay - Start Disable E-9 4
Breaker- Alternator C-9 4 Sender - Coolant Temp C-9 2
Breaker - Lighting D-4 5 Sender - Fuel Level A-6 12
Breaker - Main D-3 5 Solenoid - Boom Lower B-5 13
Solenoid - Fuel Shutoff D-9 7
Solenoid - Hi Speed Travel B-6 14
Fuses D-4,5 5 Solenoid - Hydraulic Disable B-6 14
Glow Plugs C-9 7 Switch - Air Inlet Pressure D-9 9
Ground Stud - Machine D-8 8 Switch - Beacon E-4 B
Group - Gauge Cluster C-4 A Switch - Hi Speed Travel D-2 15
Horn - Forward E-6 1 Switch - Horn C-4 A
Motor - Starter B-9 2 Switch - Interlock B-2 10
Motor - Washer D-9 9 Switch - Key Start C-4 A
Motor - Wiper B-2 10 Switch - LH Console D-4 16
Radio E-6 11 Switch - Oil Pressure D-9 7
Relay - Boom Lower A-6 5 Switch - RH Console C-4 17
Relay - Hydraulic Disable E-9 4 Switch - Travel D-2 18
Relay - Lamp E-9 4 Switch - Wiper/Washer E-4 B
*Machine locations are repeated for components located close together.
A = Located inside of cab.
B = Located inside of right console.
Engine Ground Strap - Engine Frame to
Machine Ground
B-8 6
Connector Location
1
Connector Number
Schematic
Location
Machine
Location
CONN 1 E-8 19
CONN 2 D-8 8
CONN 3 D-8 19
CONN 4 C-8 19
CONN 5 C-8 19
CONN 6 C-8 20
1
The connectors shown in this chart are for harness to harness connectors.
Connectors that join a harness to a component are generally located at or near the
component. See the Component Location Chart.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits Monitoring Circuits
101 RD Battery (+) 405 GY Oil Pressure Signal
103 YL Lighting Power 430 BU Air Filter Signal
104 YL Console Power 441 OR Coolant Temp Signal
105 RD Key Switch Power 447 PK Fuel Level Signal
109 RD Alternator Output (+) C444 YL Alternator Indicator Lamp
112 PU Main Power Relay Output
Accessory Circuits
114 RD Forward Horn Power 500 BR Wiper Park
117 RD Main Breaker Output 501 GN Wiper Signal
118 GY Wiper/Washer Power 506 PU Washer Signal
119 PK Fuel Shutoff Solenoid 508 PU Radio Speaker (+)
122 RD Dome Lamp Power 509 WH Radio Speaker (-)
125 OR Boom Lower Power A584 BU Window Interlock Signal
130 GN Heater Blower Power
Lighting Circuits
131 BR Solenoid Power 603 PK Beacon Signal
135 BU Radio Power 607 PK Flood Lamp Relay Output
144 GN Beacon Power
Control Circuits
Ground Circuits
E783 WH Dead-Engine Boom Lower
200 BK Main Chassis Ground H792 BR Flood Lamp Signal
Basic Machine Circuits
877 YL Start-Aid Relay Output
304 WH Start Relay Output E953 GY Speed-Select Signal
306 GN Start-Disable Relay Output G981 PU Travel Alarm Disable
307 OR Key Switch (Start Position) L987 WH Start-Aid Signal
308 YL Key Switch (Run Position) M927 GN Hydraulic-Disable Relay Output
321 BR Travel Alarm Signal
322 GY Forward Horn Signal
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
1
2
17
18
19
20
7
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
1
2
17
18
19
20
7
E41238
Machine Harness Connector And Component Locations
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.
SENR1279
June 1998
301.5 Excavator
Electrical System
3YW1-UP
©
1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
RIGHT CONSOLE
200-CA15 BK-18
200-CA17 BK-18
607-CA13 PK-18
607-CA18 PK-18
LEFT CONSOLE
607-FF1 PK-18
200-FF2 BK-18
607-CA4 PK-18
603-CA1 PK-18
200-CA20 BK-18
200-CA6 BK-16
200-C15 BK-18
607-C13 PK-18
509-C28 WH-18
508-C27 PU-18
501-C7 GN-18
118-C11 GY-18
A584-C5 BU-18
607-C4 PK-18
122-C3 RD-18
122-C3
RD-18
122-C3 RD-18
607-C4 PK-18
501-C7 GN-18
118-C11 GY-18
A584-C5 BU-18
200-C8 BK-18
118-C11 GY-18
A584-C5 BU-18
607-C4 PK-18
501-C7 GN-18
200-C8 BK-18
A584-C9 BU-18
603-C1 PK-18
603-C1 PK-18
135-C2 BU-18
135-C2 BU-18
122-C14
RD-18
122-C12 RD-18
200-C10 BK-18
200-C23 BK-18
200-C24 BK-18
200-C20 BK-18
200-C6 BK-16
200-C6 BK-16
200-C6 BK-16
135-C2 BU-18
200-C20 BK-18
M927-F63 GN-18
607-F35 PK-18
322-F30 GY-18
607-F35 PK-18
M927-F63 GN-18
322-F30 GY-18
E953-F65 GY-18
131-F9 BR-18
131-F9 BR-18
405-F76 GY-18
405-F76 GY-18
405-F76 GY-18
144-F52 GN-18
144-F52 GN-18
200-F46 BK-18
200-F5 BK-16
131-F56 BR-18
200-F44 BK-18
200-F5 BK-16
447-F32 PK-18
447-F32 PK-18
447-F32 PK-18
200-F7 BK-18
P977-E8 PK-18
P977-E13 PK-18P977-E14 PK-18
P977-E14 PK-18
200-E42 BK-18200-E7 BK-18
200-E5 BK-18
607-E2 PK-14
131-E12 BR-18
131-E12 BR-18
M927-E15 GN-18
607-E1 PK-18
607-E3 PK-18
607-E3 PK-18
103-E6 YL-14
103-E6 YL-14
307-E10 OR-18
307-E10 OR-18
306-E9
GN-18
306-E9 GN-18
H792-E4 BR-18
H792-E4 BR-18
441-E16 OR-18
405-E18 GY-18
119-E20 PK-18
430-E21 BU-18
109-E22 RD-6
101-E26 RD-6
101-CG1 RD-00
877-E33 YL-10
200-CF1 BK-00
L987-E31 WH-18
L987-E31 WH-18
304-E28 WH-10
101-E25 RD-6
109-E23 RD-10
109-E24 RD-10
101-E25 RD-6
200-F3 BK-18
200-F6 BK-18
405-F76 GY-18
200-F3 BK-18
200-F5 BK-16
144-F52 GN-18
E953-F65 GY-18
200-F43 BK-18
607-F35 PK-18
607-F35 PK-18
405-F76 GY-18
M927-F63 GN-18
144-F52 GN-18
131-F9 BR-18
447-F32 PK-18
322-F30 GY-18
131-F9 BR-18
144-F52 GN-18
200-F3 BK-18
122-C12 RD-18
200-C23 BK-18
321-F10 BR-18
321-F10 BR-18
321-F10 BR-18
321-F10 BR-18
321-F10 BR-18
200-F11 BK-18
200-E37 BK-18
306-E9 GN-18
L987-E31 WH-18
308-E11
YL-18
308-E11 YL-18
304-E28 WH-10
200-E30 BK-18
607-E1 PK-18
M927-E15 GN-18
200-E34 BK-18
109-E24 RD-10
109-E23 RD-10
101-E25 RD-6
308-E11 YL-18
200-E34 BK-18
131-E12 BR-18
607-E3 PK-18
103-E6 YL-14
307-E10 OR-18
H792-E4 BR-18
P977-E14 PK-18
441-E16 OR-18
405-E18 GY-18
119-E20 PK-18
430-E21 BU-18
200-E30 BK-18
200-CF1 BK-00
200-E30 BK-18
200-E34 BK-18
200-CF1 BK-00
200-F5 BK-16
200-F3 BK-18
200-E37 BK-18
322-A15 GY-18
114-A3 RD-18
104-A8 YL-18
135-A2 BU-18
135-A2 BU-18
144-A16 GN-18
135-A2 BU-18
104-A8 YL-18
114-A3 RD-18
114-A3 RD-18
104-A8 YL-18
322-A15 GY-18
322-A15 GY-18
322-A15 GY-18
144-A64 GN-18
144-A64 GN-18
130-A25 GN-14
119-A7 PK-18
119-A7 PK-18
122-A63 RD-18
122-A63 RD-18
131-A1 BR-18
101-A17 RD-6
101-A17 RD-6
103-A5 YL-14
H792-A22 BR-18
H792-A22 BR-18
H792-A22 BR-18
430-A23 BU-18
430-A23 BU-18
430-A23 BU-18
430-A23 BU-18
441-A24 OR-18
441-A24 OR-18
441-A24 OR-18
441-A24 OR-18
447-A26 PK-18
447-A26 PK-18
447-A26 PK-18
447-A26 PK-18
405-A27 GY-18
405-A27 GY-18
405-A27 GY-18
405-A27 GY-18
405-A28 GY-18
405-A28 GY-18
405-A28 GY-18
405-A28 GY-18
308-A4 YL-18
308-A4 YL-18
308-A34 YL-18
308-A34 YL-18
307-A19 OR-18
307-A19 OR-18
307-A19 OR-18
307-A19 OR-18
P977-A38 PK-18
131-A40 BR-18
131-A41 BR-18
131-A41 BR-18
P977-A39 PK-18
P977-A39 PK-18
P977-A35 PK-18
P977-A35 PK-18
P977-A35 PK-18
P977-A35 PK-18
130-A25 GN-14
P977-A39 PK-18
131-A41 BR-18
607-A31 PK-18
607-A31 PK-18
607-A31 PK-18
118-A29 GY-18
118-A29 GY-18
A584-A33 BU-18
A584-A33 BU-18
A584-A33 BU-18
501-A32 GN-18
501-A32 GN-18
501-A32 GN-18
603-A30 PK-18
603-A30 PK-18
603-A30 PK-18
200-A37 BK-18
405-A42 GY-18
506-E17 PU-18
506-E17
PU-18
200-E19 BK-18
200-E19 BK-18
C444-E35 YL-18
C444-E35 YL-18
C444-E35 YL-18
506-A43 PU-18
506-A43 PU-18
506-A43 PU-18
200-A44 BK-18
200-A44 BK-18
H792-A47 BR-18
H792-A47 BR-18
H792-A46 BR-18
H792-A46 BR-18
H792-A45 BR-18
200-A48 BK-14
200-A48 BK-14
200-A49 BK-18
200-A49 BK-18
200-A50 BK-14
200-A50 BK-14
L987-A51 WH-18
L987-A51 WH-18
L987-A51 WH-18
C444-A52 YL-18
C444-A52 YL-18
C444-A52 YL-18
C444-A52 YL-18
200-A53 BK-18
200-E36 BK-18
200-A54 BK-18
200-A55 BK-16
200-A55 BK-16
131-A57 BR-18
131-A57 BR-18
131-A56 BR-18
131-A56 BR-18
131-A56 BR-18
405-E18 GY-18
441-E16 OR-18
119-E20 PK-18
430-E21 BU-18
200-E36 BK-18
306-E9 GN-18
P977-E14 PK-18
103-E6 YL-14
607-E3 PK-18
607-E1 PK-18
H792-E4 BR-18
307-E10 OR-18
M927-E15 GN-18
131-E12 BR-18
200-E37 BK-18
131-E39 BR-18
131-E39 BR-18 131-E39 BR-18
131-E38 BR-18
130-A25 GN-14
322-F30 GY-18
105-A58 RD-18
105-A58 RD-18
105-A58 RD-18
105-A58 RD-18
131-E39 BR-18
607-E1 PK-18
M927-E15 GN-18
200-E37 BK-18200-E36 BK-18
117-A65 RD-10
117-A67 RD-6
200-A53 BK-18
112-A18 PU-14103-A5 YL-14
101-A17 RD-6
131-A41 BR-18
H792-A46 BR-18
144-A64 GN-18
119-A7 PK-18
308-A34 YL-18
308-A4 YL-18
122-A63 RD-18
200-A53 BK-18
103-A5 YL-14
131-A57 BR-18
131-A56 BR-18
104-A8 YL-18
144-A16 GN-18
114-A3 RD-18
130-A25 GN-14
308-A4 YL-18
P977-A39 PK-18
P977-A39 PK-18
131-A41 BR-18
H792-A46 BR-18
118-A29 GY-18
200-E40 BK-18
200-E41 BK-14
200-E40 BK-18
200-E41 BK-14
200-E41 BK-14
200-E40 BK-18
NOTE B
NOTE B
CANOPY HARNESS
A584-A59 BU-18
L987-A61 WH-18
L987-A60 WH-18
L987-A61 WH-18
L987-A60 WH-18
500-C19 BR-18
500-C19 BR-18
500-C19 BR-18 500-A62 BR-18
500-A62 BR-18
500-A62 BR-18
607-A31 PK-18
607-C18 PK-18
200-C17 BK-18
607-C18 PK-18
200-C17 BK-18
135-A2 BU-18
308-A34 YL-18
119-A7 PK-18
103-A5 YL-14
131-A57 BR-18
122-A63 RD-18
118-A29 GY-18 101-A17 RD-6
144-A16 GN-18
501-A32 GN-18
200-A44 BK-18
603-A30 PK-18
506-A43 PU-18
500-A62 BR-18
A584-A33 BU-18
131-A41 BR-18
H792-A46 BR-18
P977-A39 PK-18
144-A64 GN-18
105-A58 RD-18
122-A63 RD-18
112-A69 PU-10
112-A68 PU-10
101-A17 RD-6
200-A53 BK-18
103-A5 YL-14
308-A4 YL-18
308-A34 YL-18
308-A36 YL-18
114-A3 RD-18
144-A16 GN-18 144-A6 GN-18
THIS SCHEMATIC IS FOR THE 301.5
COMPONENTS ARE SHOWN INSTALLED ON A FULLY OPERABLE
MACHINE WITH THE KEY AND ENGINE OFF.
IDENT PART NO. CHGLOC NOTE
A
C
CA
F
FF
HARNESS AS.
CABLE AS.
00 C
00 F
00 E
00 C
00 D
00 CCF
154-3193
154-3192
154-3191
154-3189
154-3188
154-3195
NAME
FUSE BOX
CAB - CLOSED
CAB - OPEN
FRAME - FRONT
BOOM
MACHINE GROUND
E 00 C154-3190 FRAME - REAR
ALL DASHED LINES ARE ATTACHMENTS
NOTE
LOC
NOTE A: RADIO TO BE INSTALLED BY DEALERF-6
C-4
E-4
NOTE C: HARNESS AS. OR CABLE AS. PART OF
WIRING GP-BATTERY (154-8901)
NOTE D: HARNESS AS. PART OF
WIRING GP-LIGHTING (149-7847)
NOTE E: HARNESS AS. PART OF
WIRING GP-CANOPY/OPEN (145-8237)
NOTE F: HARNESS AS. PART OF
WIRING GP-CANOPY/ENCLOSED (145-8236)
B-1
B-1
B-1
B-1
00CG 154-3194 BATTERY TO STARTER C
D-4
B-7
F-2
D-9
B-6
D-2
H-8
I-8
NOTE B: SWITCH IS CLOSED WITH CONSOLE RAISED.
NOTE A
WIRE AS.
00 CWA 158-7833 HI SPEED TRAVEL SWITCHH-8
131-WA1 BR-18
E953-WA2 GY-18
200-A54 BK-18
200-A9 BK-14
200-A9 BK-14
200-A10 BK-14
200-A10 BK-14
A584-C16 BU-18
501-C7 GN-18
500-C19 BR-18
200-C23 BK-18
200-C10 BK-18
508-C27 PU-18
509-C28 WH-18
506-E17 PU-18
200-E19 BK-18
E783-F2 WH-18
200-F1 BK-18
877-E33 YL-10
C444-E35 YL-18
200-CF1 BK-00
101-E25 RD-6
308-E11 YL-18
877-E33 YL-10
304-E28 WH-10
109-E24 RD-10
109-E23 RD-10
109-E23 RD-10
109-E24 RD-10
304-E28 WH-10
877-E33 YL-10
306-E9 GN-18
200-E34 BK-18
200-E30 BK-18
L987-E31 WH-18
E953-F65 GY-18
321-F10 BR-18
308-A11 YL-18
308-A11 YL-18
308-A11 YL-18
308-A11 YL-18
308-A11 YL-18
115-F4 PK-18
E953-F65 GY-18
131-F56 BR-18
131-F75 BR-18
115-F4 PK-18
ENGINE
ENGINE
ENGINE
ENGINE
LEFT CONSOLE
RIGHT CONSOLE
RIGHT CONSOLE
607-F35 PK-18
200-F43 BK-18
CONNECTS TO A-C18 AT C-7
200-F1 BK-18
200-F43 BK-18
200-E41 BK-14
306-E9 GN-18
200-E40 BK-18
TO ENGINE FRAME
ENGINE GND STRAP
8I-4641
ENGINE
FUSES
114-8490 10A
114-8491 15A
603-A30
PK-18
ABBREV COLOR
RD RED
WH WHITE
OR ORANGE
YL YELLOW
PK PINK
BK BLACK
GY GRAY
PU PURPLE
BR BROWN
GN GREEN
BU BLUE
NEGPOS
12V BATTERY
153-5660
E3
E3
E4
E4
GLOW PLUGS
153-6643
G S
MTR BAT
MOTOR
STARTER
144-9967
MACHINE GND 1
M10 GND STUD
BOOM FLOOD LAMP
152-8180
10 10 10
10
CONSOLE
10
HORN
15
HEATER
10
WIPERWASHER
10
DOMELAMP
OIL PRESS SW
153-6616
B+
ALTERNATOR
144-9952
L I P
BEACON SWITCH
109-2350
7X-1379
7X-1379
HORN SWITCH
144-5985
T
COOLANT TEMP SENDER
120-0667
STARTER GND
1 2 3
E-C3
107-3134
FUEL SHUTOFF SOL
153-6409
HI SPD TRAVEL SOL
144-5986
LH CONSOLE SW
156-6679
1
2
F-C17
3E3361
AIR INLET PRESS
151-8367
1
2
E-C5
1003320
1
2
A-C16
3E3361
LAMP RELAY
7X-1379
+BATTERY
GROUND
HEATER BLOWER AS
144-6642
KEY SWITCH (ON)
1
2
FF-C1
3E3364
1
2
F-C6
3E3361
60
ALTERNATOR BREAKER
9S-0174
START RELAY
7X-1379
START AID RELAY
7X-1379
FUEL LEVEL SENDER
155-3139
2
1
F-C20
3E3361
HI SPD TRAVEL SW
3T-3132
10
FUEL SHUTOFF
1
2
3
4
E-C2
3E3373
1
2
3
4
F-C9
3E3376
COOLANT
TEMP
FUEL
LEVEL
C
H
C
H
SERVICE
HOUR
1
2
3
4
PU WH
BK
GN YL
BU YL
- -+ -
BU WH
BU WH
1
2
RW
GR
WH BK
GN WH
GN WH
GN WH
GN WH
GN WH
GN WH
WH BK
GN YL
YL
BK
BK
GN YL
BK
PK WH
GN YL
BK
YL BK
GN YL
I
S
G
I
S
G
GN YL
BU YL
GN BK
YL WH
BR YL
PK WH
BU YL
GN WH
DASH LIGHT
AIR CLEANER
GLOW PLUG
ALTERNATOR
OIL PRESSURE
BK
BK
BK
BK
BK
BU YL
YL WH
BK
GN BK
BK
YL
TRANSISTER
UNIT
143-2267
4
7
9
10
11
12
8
5
3
2
1
6
A-C17
3E5176
1
2
3
4
5
6
7
8
9
10
11
12
CA-C1
3E5179
ANTENNA
8E-1118
DOME LAMP
084-4277
RIGHT CAB FLOOD LAMP
152-8180
LEFT CAB FLOOD LAMP
152-8180
ANTENNA
LEFT SPKR -
RIGHT SPKR -
GROUND
+B MEMORYYL
BK
GY/BK,VI/BK
GY/VI
RD
WH/BK,BN/BK
WH/GN
RIGHT SPKR +
LEFT SPKR +
+ BATTERY (12V)
NC
RADIO
126-4953
SPEAKER
6T-7695
-
+
8
7
3
2
1
6
5
4
C-C2
3E3385
GND
B+
P
T
MOTOR
L
BR
GY
BK
GN
3
1
2
4
WIPER
146-6431
1
E-C7
1275483
1
A-C3
1275484
2
1
F-C8
3E3361
1
2
3
4
5
6
7
8
F-C10
3E3388
1
2
3
4
5
6
7
8
9
10
11
12
C-C5
3E5179
TRAVEL SW 1
142-3340
2
1
C-C6
3E3361
WIPER WASHER SW
158-7802
C-C3
3E3373
-
+
TRAVEL ALARM
138-4946
A
B
C
F-C14
3E3367
HYDR DISABLE SOL
144-5986
-
+
FWD HORN
7T-0635
BOOM LOWER SOL
143-2269
2
3
5
6
7
8
A-C2
1117898
1
4
1
2
3
4
5
6
7
8
A-C4
3E3385
1
2
3
4
5
6
7
8
9
10
11
12
A-C18
3E5176
WASHER
152-1800
MOTOR
10
KEY START SW
2
3
5
6
7
8
A-C1
1117898
1
4
E-C8
9X1054
E-C9
9X1054
E-C10
9X1054
E-C11
9X1054
E-C12
9X1054
A-C7
9W-2035
MAIN POWER RELAY
103-0799
20
LIGHTING BREAKER
9H-1958
1
2
3
4
5
6
E-C13
3E3382
1
2
3
4
5
6
A-C12
3E3379
60
MAIN BREAKER
9S-0174
INTERLOCK SW
146-6442
1
2
A-C14
1003320
RH CONSOLE SW
156-6679
1
2
A-C15
1003320
1
2
E-C4
7T5957
SYMBOL DESCRIPTION
BLADE, SPADE, RING,
OR SCREW TERMINAL
SPLICE
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT GROUPING
DESIGNATION
L#
BEACON SOCKET
9R-7941
BEACON
128-6985
BEACON SOCKET 2
9R-7941
BEACON 2
128-6985
1
2
WA-C1
3E3361
1
2
F-C1
3E3364
A-C8
9W-2035
A-C9
9W-2035
1
2
F-C7
3E3373
3
4
F-C12
3E3367
A
B
C
2
1
A-C11
3E3364
1
2
A-C10
3E5176
3
4
5
6
7
8
9
10
11
12
1
2
E-C1
3E5179
3
4
5
6
7
8
9
10
11
12
5
1
A-C13
3E3379
2
3
4
6
BOOM LOWER RELAY
7X-1379
BR
OR
PU
YL
ST
ON
OFF
B
S
C
R
KEY START SW
154-3197
AID
RD
A
A-C19
3E3367
A
B
C
F-C2
9X1054
LEFT CAB FLOOD LAMP 2
152-8180
RIGHT CAB FLOOD LAMP 2
152-8180
(158-2220 CHG 01)
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 6
GAUGE GROUP-CLUSTER
DASH AND
FLOOD LAMPS
BEACON RADIOSOLENOIDS
START
DISABLE
HYDR
DISABLE
M 10 GND STUD
MACHINE GND
123456789
F
E
D
C
B
AA
B
C
D
E
F
9 8 7 6 5 4 3 2 1
E41237
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.
ELECTRONIC MONITORING SYSTEM
(EMS) CIRCUIT.
WASHER/WIPER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
