1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
KENR2628-01
June 1998
CS-431C, CP-433C, & CS-433C
Electrical System
CS-431C:
9XL1-UP
6EN1-UP
3WZ1-UP
CP-433C:
2JM1-UP
1ZN1-UP
4JZ1-UP
CS-433C:
3TM1-UP
2TN1-UP
5BZ1-UP
Vibratory Compactors
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.
1
Item
Component
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
No.
Propel Low Charge Pressure Switch
Operator's Guage Panel
Propel Brake and Two-Speed Solenoids
Neutral Start Switch
Diode Assemblies (Under Panel)
Starter and Solenoid
Batteries
Main Disconnect Switch
Alt. Circuit Breaker
Fuel Solenoid
Hydraulic Oil Temperature Switch
Engine Coolant Temperature Switch
Engine Oil Pressure Switches
Main Relay
Relay Bank (10)
Start Relay
Fuse Block
Operator's Controls
d31777
Propel Brake Interlock Solenoid
Vibration Pump Control Solenoids
20 4
7 12
9
163
6
11
d31776
13
6
7 12
19
9
10
8 6 1
4
11
14
17
19
14 15
10
18
13 2 3 5 17 20 16 18
1
2 6
5
1G-6252
VIB VARIABLE FREQUENCY
OPTION
1V6652
VIB SELECT SW
D800-WH
1G-6251
B924-OR
B923-YL
B916-OR
7R0635
7R0636
D801-PU
6T4469
200-BK
RECORDING MODULE
ATTACHMENT
+
63
450-YL
200-BK
200-BK
200-BK
105-BR
449-BU
450-YL
308-YL
200-BK
1
2
5
3
4
6
814135
RECORDER
814433
6
4
3
5
2
VIB LOCKOUT OPTION
XMSN SP SEL SW (3T-4405)
XMSN SP
SEL SW
3T-4405
1
103-PK
103-PK
751-GN
143-BR
276-BK
BEACON SW OPTION
8D-2676
603-PK
2
3
115-PK
2
HYD OIL CHR
PR RLY 3E-5239
200-BK
276-BK 123-WH
87a
87 30
86
6
7
5
4
8
1
2
3
85
P10
568-GN
465-OR
3
DIODE AS. 3
105-3542
COLOR
RED
WHITE
ORANGE
YELLOW
PINK
BLACK
GRAY
PURPLE
BROWN
GREEN
BLUE
ABBREV
RD
WH
OR
YL
PK
BK
GY
PU
BR
GN
BU
ATCH WIRE, CABLE,
COMPONENT
CONNECTOR
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
BLADE, SPADE, RING
OR SCREW TERMINAL
200-BK
ROPS
LI
GHTS
HARN
ESS
112-3241
C93
8-
B
R
VI
B HAR
NESS
109-9849
21
200-BK
B921WH
3
1
4
2
200-BK
B920GN
215
4
1
2
200-BK
3
B920-GN
B921-WH
4
5
6
7
B919-YL
200 BK
REC MOD
88
B921-WH
B919-GN
B920-GN
7
6
200-BK
REC MOD
OPTIONAL
REC MOD
ATTACHMENT
5
4
3
2
200-BK
449-BU
11
2
3
4
5
449-BU
450-YL
449-BU
449-BU 449-BU
308-YL
REC
MOD
200-BK
450-YL
6
105-BR
308-YL
7
449-BU
603-PK
200-BK
603-PK
200-BK
1
2
BE
ACON HA
RNESS
OPTIONAL
ROTARY
BEACON
88
7
6
BAC
BK
RD
BU
5
4
3
2
1
D
C
RD
B
YL
A
BK
200-BK
2
1
RD
BK
B922-GN
123-WH
400-GN
220-BK
1
2
COMPONENT ARE SHOWN INSTALLED
ON A FULLY OPERABLE MACHINE
WITH THE KEY AND ENGINE OFF.
788-YL
COOL. TEMP
SW 108-3190
T
C
A
B
221-BK
200-BK
BK
RD
WH
BK-00BK-00
RD-00
200-BK
BK
RD
WH
B765-BR
112-PU-10
112-PU-10
308-YL308-YL
109-OR-6
109-OR-6
304-WH-6
101-RD-6
109-OR-6 109-OR-6
112-PU-10
101-RD-10
112-PU-10
101-RD-10
101-RD-6
WARN HORN
7T-0969
306-GN
200-BK
308-YL
200-BK
112-PU-10
304-WH-6
109-OR-6
109-OR-8
10
15
17
5
16
6
12
19
2
20
22
1
24
18
23
7
11
14
13
9
8
4
3
P5
87a
87 30
868585 86
3087
87a
P8
N/ST #1 RLY
3E-5239
87a
87
143-BR
751-GN
30
86
10A
85
1
2
P4P3P1
87a
87 30
8685
N/ST #2 RLY
3E-5239
87a
87 30
8685
--
85 86
++
REAR
FLOODS
9X-1439
200-BK
608-GN
GND
DIODE AS. 1
105-3542
200-BK
322-GY
MAIN RLY
101-7740
P15
R15
ST
MOTOR
200-BK
148-WH
12
377-OR
326-PU
377-OR
ST
777-PU
121-YL
321-BR
608-PK
MOT BAT.
DISCONNECT SW
7N-0718
BATTERY
3T-5760
ST AID
(ENGINE)
101-RD-6
377-OR
BATTERY
3T-5760
608-GN
200-BK
304-WH-6
101-RD-6
109-OR-6
608-GN
200-BK
121-YL
321-BR
BKUP
ALM
3T-1815
304-WH-6
200-BK
607-PK
2
1
200-BK
607-PK
607-PK
200-BK
200-BK
607-PK
FRONT
FLOODS
9X-1439
200-BK
B921-WH
276-BK
BK-00
200-BK
B920-GN
2
3087
87a
ST RLY
3E-0075
87a
87 30
8685
P9
85 86
30
1
2
200-BK
226-BK
R18
C
A
B
FRAME
GND
377-OR N/A
148-WH N/A
B920-GN
B921-WH
751-GN
121-YL
321-BR
608-GN
607-PK
603-PK
PLATF GND
1
2
FEDCBA
+
+
+
+
LOW CHRG
PRESS. SW
221-BK
P17
568-GN
C938-BR
C938-BR
307-OR
6R1374
200-BK
143-BR
B765-BR
776-YL
322-GY
123-WH
HYD OIL
TEMP
HYD
FLTR
OPTIONAL
VIB TACH
78-0594
SIG
-
IGN
GND
+
DIODE
7X-8831
ALT IND LAMP
7N-5876 LAMP
R13
P13
SERVICE METER
(HR GA)
6T-7337
FUEL SOL RES
5L-2854
ST AID RES
7W-1251
ST AID SW
9D-3721
10A
FUEL LVL GA
4W-2141
GND
IGN
SEND
R33
P33
376-GN
376-GN
308-YL
KEY ST SW
9G-7641
B
S
C
R
447-PK
1
326-PU
308-YL
309-GY
87
87a
308-YL
308-YL
308-YL
PROPEL
INTLK
SOL
777-PU
200-BK
1
2
ST
P16
ENG
BLOCK
123-WH
400-GN
309-GY
109-OR-6
220-BK
200-BK
T
HYD OIL
TEMP SW
112-1793
ENG OIL
PR SW
107-0611
ENG OIL
PR SW
103-4977
OPT
IONAL ENG
SP
SENS
OR
6V-2455
12
B-
R
B+
R16
D+
447-PK200-BK
FUEL LEVEL
SENDER 6T-3670
307-OR
105-BR
751-GN
200-BK
1
2
1
1
2
777-PU
200-BK
200-BK
40
0-
GN
568-GN
428-OR
400-GN
C938-BR
568-GN
405-GY
568-GN
406-PU
40
6-
P
U
46
5-
OR
12
3-
WH
C93
1-
OR
42
8-
OR
40
5-
GY
N/A CKT OR PARTIAL CKT IS NOT
APPLICABLE TO THIS MODEL
FUEL PUMP
SOL (ENGINE)
200-BK
326-PU
ALT
9W-3043
ON
OFF
103-PK
103-PK
200-BK
450-YL
322-GY
B919-GN
103-YL
1
2
128-PK
1
2
321-BR
200-BK
C938-BR
307-OR
607-PK
105-BR
148-WH
406-PU
123-WH
428-OR
405-GY
568-GN
C931-OR
200-BK
200-BK
B920-GN
B921-WH
751-GN
121-YL
608-GN
607-PK
321-BR
603-PK
R11
P11
R12
P12
60
7-
P
K
607-PK
105-BR
148-WH
776-YL
143-BR
143-BR
776-YL
200-BK
X
X
4
2
116-BR
607-PK
607-PK
4
6
3
1
5
2
115-PK
MAIN HARNESS 117-0843
PLATFORM HARNESS 117-0842
101-RD-10
CONTROL HARNESS 117-0841
123-WH
200-BK200-BK
101-RD-6
85 86
30
87
87a
128-PK
105-BR
143-BR
116-BR
P6P7
15
12
14
13
1
16
17
18
19
20
21
123-WH
200-BK
405-GY
307-OR
143-BR
306-GN
B765-BR
776-YL
C938-BR
C931-OR
428-OR
406-PU
221-BK
226-BK
330-YL
220-BK
777-PU
200-BK330-YL
143-BR 307-OR
330-YL
C931-OR200-BK
200-BK C930-BR
200-BK
200-BK
405-GY
200-BK
220-BK
200-BK
406-PU
776-YL
776-YL B765-BR
777-PU
776-YL
200-BK
123-WH 221-BK
C720-BU
C93
0-
B
R
200-BK
123-WH 226-BK
428-OR
123-WH
C938-BR
200-BK123-WH
306-GN
C938-BR
607-PK
200-BK
308-YL
123-WH
465-OR
405-GY
377-OR
326-PU
400-GN
221-BK
226-BK
330-YL
308-YL
103-YL
148-WH
121-YL
115-PK
123-WH
FWD HORN
KEY ST
BRAKE
REAR FLOOD
VIB ON/OFF
ST AID
220-BK
777-PU
123-WH
276-BK
BKUP ALM
FR FLOOD
GAGE/RLY
10A
10A
10A
10A
221-BK
226-BK
330-YL
308-YL
15
19
21
22
23
5
6
7
8
10A
10A
B921-WH
B920-GN
B919-GN
2
3
1
B920-GN
B921-WH
751-GN
121-YL
321-BR
608-GN
607-PK
603-PK
18
17
20
2
13
12
10
24
ENG OIL
PR
COOL.
TEMP
16
3
11
14
1
4
9
447-PK
309-GY
788-YL
326-PU
377-OR
400-GN
450-YL
447-PK
309-GY
788-YL
326-PU
377-OR
400-GN
450-YL
465-OR
BRAKE
SOL
220-BK
777-PU
123-WH
4
2
3
10
6
8
5
7
11
9
607-PK
105-BR
148-WH
B920-GN
B921-WH
751-GN
121-YL
608-GN
607-PK
321-BR
603-PK
465-OR
406-PU
123-WH
428-OR
405-GY
568-GN
C931-OR
200-BK
BK SW
116-5275
& 116-5277
ALT CKT BKR
9S-0174
FWD HORN SW
3T-2357
BKUP ALM SW
(PROPEL LEVER)
VIB ON/OFF SW
(PROPEL LEVER)
FLOOD
LIGHT SW
7T-3946
607-PK
105-BR
148-WH
22
23
24
VIB CONT
SOL
SHIFT
SOL
INSTRUMENT HARNESS 117-0839
465-OR
330-YL
308-YL
NEUTRAL/
ST SW
77-3217
BK #1 RLY
3E-5239
BK #2 RLY
3E-5239
123-WH
304-WH-6
200-BK
143-BR
B765-BR
776-YL
322-GY
123-WH
6
7
5
4
8
1
2
3
450-YL
450-YL
788-YL N/A
447-PK
377-OR
326-PU
400-GN
309-GY
6
7
5
4
8
1
2
3
VIB SEL SW
1V-6652
FWD HORN
7T-0969
DIODE AS. 2
105-3542
DIAGNOSTIC LIGHT
CLUSTER AS.
86-8835
FUNCTIONAL
LIGHT RLY
3E-5239
HYD TEMP
RLY 3E-5239
450-YL
788-YL
447-PK
377-OR
326-PU
400-GN
309-GY
3
WARN LIGHT
RLY 3E-5239
1
10A
608-GN
COOL. TEMP
RLY 5E-5239
200-BK
450-YL
2
1
ENG OIL PR
RLY 3E-5239
VIB SFT
SP SENSOR
7R-3145
P2
D28370
ELECTRICAL SCHEMATIC
1069476
1 2
18
14
3
5 5 6
8
9 9
10
12
13
15
15
16
11
4
7
7
44
19 20
17
