©2000 Caterpillar
All Rights Reserved
Printed in U.S.A.
KENR2918
January 2000
CB-214D, CB-224D, and CB-225D
Electrical System
CB-214D:
1TZ1-UP
CB-224D:
8RZ1-UP
CB-225D:
9FZ1-UP
Vibratory Compactor
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.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
52±3°C 43°C MIN Normally
(125.6±6°F) (109.4°F MIN) Closed
82.22±2.78°C 73.89°C MIN Normally
(180±5°F) (165°F MIN) Open
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).
²Contact position at the contacts of the harness connector.
3E9350 Oil Cooler Temp Switch
7N7848 Hyd Oil Temp Switch
Related Electrical Service Manuals
Title Form Number
Alternator 163-3362 SENR5841
Component Location
Component
Schematic
Location
Machine
Location
Comonent
Schematic
Location
Machine
Location
Alternator D-12 8 Solenoid - Drum Select A-10 19
Battery F-11 10 Solenoid - Flow Divider B-9 25
Breaker - Alternator Cicuit E-7 2 Solenoid - Fuel Shutoff A-11 20
Breaker - Light Circuit E-7 2 Solenoid - Interlock A-11 18
Control - Handle VIB A-5 15 Solenoid - Neutral/Brake A-10 21
Flasher F-3 3 Solenoid - VIB On/Off A-10 19
Fuse Block F-4/5 3 Starter F-10 9
Glow Plugs B-12 20 Switch - Brake B-1 1
Gound B-11 19 Switch - Cool Temp A-11 20
Ground - Chassis E-12/F-12 23/11 Switch - Drum Select E-1 1
Ground - Engine F-12 11 Switch - Emulsion F-1 1
Ground - Frame C-9 24 Switch - Flow Divider A-8 26
Ground - Front/Rear E-12 23 Switch - Hazard D-1 1
Hour Meter E-7 2 Switch - Horn C-1 1
Lights - Warning C-1 1 Switch - Hyd Oil Temp B-8 22
Pump - Emulsion Spray A-7 5 Switch - Key B-1 1
Pump - Water Spay (225 Only) A-7 4 Switch - Light F-2 1
Pump - Water Spay (214, 224 Only) A-7 6 Switch - Neutral A-5 14
Relay - Brake 1 A-3 14 Switch - Neutral Backup A-12 18
Relay - Brake 2 A-3 14 Switch - Oil Pressure A-11 20
Relay - Fan Motor A-4 14 Switch - Seat A-6 16
Relay - Interlock 1 A-3 14 Switch - Start Aid D-1 1
Relay - Interlock 2 A-2/E-7 14 Switch - Turn Signal E-1 1
Relay - Main Power E-8 2 Switch - Water Spray E-1 1
Relay - Spray A-4 14 Timer F-3 3
Relay - Starter E-8 2 Turn Signal Indicator D-1 1
Relay - Starter A-2/E-7 14/2 VIB Lamp Indicator D-1
1
Machine locations are repeated for components located close together.
A Located in the cab.
B Located in the lefthand console.
C Located in the righthand console.
D Located on or near relay panel.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 D-9 25
CONN 2 C-9 25
CONN 3 E-5 24
CONN 4 E-5 24
CONN 5 D-5 24
CONN 6 C-5 24
The connectors shown in this chart are for 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
101 RD Bat (+) 447 PK Fuel Level guage
104 RD Alt Breaker C400 GN Hyd Shutoff Valve
107 RD Eng Shut - Down Fire Suppr
Accesory Circuits
109 RD Alt Output (+) Term. 500 BR Wiper - Front (Park)
112 RD Main Power Rly Output 501 GN Wiper - Front (Low)
115 RD Lamp/Wiper 506 PU Washer - Front
120 YL Radio 508 PU Radio Speaker - Left
121 YL Back Alarm To Lamp 509 WH Radio Speaker - Left (Commom)
124 GN A/C 511 BR Radio Speaker - Right
142 BU Aux Ckt 512 GN Radio Speaker - Right (Common)
151 GN Hyd Lock Sol 513 OR A/C Compressor/Refrigerant Pressure SW
190 BK Eng Gov/Monitor 515 GY Blower Motor (HI)
Ground Circuits
517 BU Blower Motor (Low)
200 BK Main Chassis 519 PK Thermostat To Refrigerant Press. SW
201 BK Operator Monitor Return 535 BU SW To Wiper SW
Basic Machine Circuits
A588 GN Safety Sol Relay To Sol+
306 GN Starter Relay Coil To Neut Start SW
Lighting Circuits
307 OR Key SW To Neutral Start SW 612 GY Backup Lamp
309 GY Alternator Regulator Term. 616 BU Bucket Flood Lamp/Boom Flood Lamp
310 PU Start Aid SW To Start Aid Sol
Control Circuits
315 GN Start Aid Breaker To Start Aid Relay 762 YL Bucket Positioner Sol SW
320 OR Horn Relay Coil To SW 763 BU Torque Converter SW
321 BR Backup Alarm Lamp Travel Alarm 799 WH Sensor Power
322 GY Warning Horn (Forward) B786 BU Low Idle SW
323 WH Fuel Pump Power D746 PK Alt Signal To Anti-Start Relay
327 PK Shutdown Solenoid E771 OR Low Torque Mode Sol
330 YL Neutral Start Relay Coil 817 WH Back-Up Alarm Relay
332 BU Shutdown SW To Shutdown Ctrl 877 YL Glow Plug Magnetic SW To Glow Plug
364 BU Engine Shutdown SW - Ctrl D813 OR Low Idle SW HEDC
Monitoring Circuits
D814 GY Implement Press SW
403 GN Alternator (R) Term. D815 PU Low Idle Indicator
405 GY Opr Mon Oil Press. (Low Setting) D816 WH Eng/Pump Cont Sol
406 PU Opr Mon Coolant Temp B965 GY Level Finish Sol
441 OR Eng Coolant Temp Guage K906 GN Swing Brake Sol - Signal
442 GY Hyd System Temp Guage K915 GN Fine Swing SW - E/P Controller
Monitoring Circuits Continued
3
4
5
6
8
9
10
11
14
15
16
1
2
17
18
19
20
21
22
23
24
25
26
3
4
5
6
8
9
10
11
14
15
16
1
2
17
18
19
20
21
22
23
24
25
26
Machine Harness Connector And Component Locations
12
11
10
9 8 7 6
5
4
3
2
1
12
11
10
9 8 7 6
5
4
3
2
1
F
E
D
C
B
A
F
E
D
C
B
A
109-RD-6
SEAT
SWITCH
121-YL-16
307-OR-16
308-YL-16
321-BR-16
403-GN-16
405-GY-16
406-PU-16
777-PU-16
A990-BU-16
C926-BU-16
PLUG
1
2
3
4
5
6
7
8
9
10
11
12
384-BU-8
109-RD-6
304-WH-10
101-RD-6
R18
3E5179
R17
1275486
1
1
2
3
4
P22
3E3373
PLUG
PLUG
121-YL-16
321-BR-16
NEUTRAL
BACKUP
SWITCH
(PUMP)
T
384-BU-8
GLOW PLUGS
308-YL-16
FUEL SHUTOFF
SOLENOID
405-GY-16
406-PU-16
P24
3E3361
C926-BU-16
200-BK-16
P25
3E3361
A990-BU-16
200-BK-16
P26
3E3361
307-OR-16
200-BK-16
1
2
DRUM
SELECT
SOLENOID
VIB ON/OFF
SOLENOID
INTERLOCK
SOLENOID
200-BK-16
GROUND
B+
C
GND
ALTERNATOR
1633362
403-GN-16
CHASSIS
GROUND
CABLE AS.
1302462
BK-00
CABLE AS.
1643513
BATTERY
3T5760
RD-2
RD-6
RD-2
STARTER
1633361
304-WH-16
ABBREV COLOR
BK
BU
BR
GN
GY
OR
PK
PU
RD
YL
WH
BLACK
BLUE
BROWN
GREEN
GREY
ORANGE
PINK
PURPLE
RED
YELLOW
WHITE
HARNESS AS.-PLATFORM 1635588
R15
3E3364
204-BK-16
C906-PU-16
CHASSIS
GROUND
STRAP AS.
4M-7146
ENGINE
GROUND
FRONT
CHASSIS
GROUND
STRAP AS.
1G-4665
REAR
CHASSIS
GROUND
OIL PRESSURE
SWITCH
COOL TEMP
SWITCH
P23
3E3361
777-PU-16
200-BK-16
NEUTRAL/BRAKE
SOLENOID
PLUG
MOTOR
G S
MTR BAT
NEG POS
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#
9X0141
P1
A893-OR-16
777-PU-16
619-GN-16
614-PU-16
608-GN-16
606-GY-16
605-YL-16
406-PU-16
405-GY-16
404-YL-16
403-GN-16
322-GY-16
310-PU-16
308-YL-16
307-OR-16
306-GN-16
125-OR-16
121-YL-16
110-GN-16
A990-BU-16
C906-PU-16
C922-BR-16
C926-BU-16
G736-PK-16
G797-BU-16
200-BK-16
200-BK-16
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
P2
1275483
P4
1297163
P3
1275485
112-PU-6
102-RD-12
109-RD-10
P14
155-2273
125-OR-16
A990-BU-16
MOTOR
P16
3E3361
P19
3E3361
P13
3E3361
P26
3E3361
P20
3E3361
P21
3E3361
1
2
1
2
306-GN-16
202-BK-16
310-PU-16
202-BK-16
START AID
RELAY
1179080
START
RELAY
1179080
384-BU-8
304-WH-10
109-RD-10
109-RD-8
109-RD-6
102-RD-12
LIGHT
CIRCUIT
BREAKER
3T8728
ALTERNATOR
CIRCUIT
BREAKER
9S0174
101-RD-12
HOUR METER
6T7337
403-GN-16
202-BK-16
202-BK-16
308-YL-16
109-RD-6
109-RD-10
109-RD-6
109-RD-10
109-RD-8
60A
20A
101-RD-6
112-PU-6
MAIN POWER
RELAY
4L3913
WATER
SPRAY
PUMP
1563519
EMULSION
SPRAY
PUMP
1468045
C922-BR-16
202-BK-16
A893-OR-16
20
4-BK-
16
1
2
G736-PK-16
203-BK-16
G797-BU-16
203-BK-16
404-YL-16
203-BK-16
T
OIL COOLER
FAN MOTOR
1561503
OIL COOLER
TEMP SWITCH
3E9350
HYD OIL
TEMP SWITCH
7N7848
321-BR-16
204-BK-16
BACKUP
ALARM
3T1815
201-BK-16
619-GN-16
P15
3E3361
C906-PU-16
204-BK-16
606-
GY-16
614-PU-16
204-BK-16
608-GN-16
204-BK-16
605-YL-16
614-PU-16
204-BK-16
WORKING
LIGHT
9X9484
LH REAR
TURN LIGHT
1271560
081-2751
1087605
RH REAR
TURN LIGHT
1271559
081-2751
1087605
BEACON
1181227
121-YL-16
322-GY-16
201-BK-16
619-GN-16
201-BK-16
201-BK-16
614-PU-16
605-YL-16
201-BK-16
614-PU-16
606-GY-16
121-YL-16
307-OR-16
308-YL-16
321-BR-16
403-GN-16
405-GY-16
406-PU-16
777-PU-16
A990-BU-16
C926-BU-16
PLUG
P18
3E5176
P17
1275485
384-BU-8
RH FRONT
TURN LIGHT
1186650
081-2751
108-7605
LH FRONT
ROADING LIGHT:
1512457
WORKING LIGHT:
9X-9484
LH FRONT
TURN
LIGHT
1189024
081-2751
108-7605
SWITCH
FLOW DIVIDER
SOLENOID
125-OR-16
G798-PU-16
G798-PU-16
203-BK-16
T
BK-16
BK-16
CABLE AS.
1643513
HARNESS AS.-MAIN 1635587
1
2
WIRE AS.
1544704
BK-16
(FOR CB-225D ONLY)
HORN
7T0635
109-RD-6
109-RD-6
FRAME GROUND
RH FRONT
ROADING LIGHT:
1512457
WORKING LIGHT:
9X-9484
374-PK-16
110-GN-16
204-BK-16
MOTOR
4
5
3
VIB
SWITCH
HANDLE VIB CONTROL
1563488
NEUTRAL
SWITCH
1
2
374-PK-16
PLUG
PLUG
PLUG
PLUG
BK-18
BK-18
BK-18
BK-1
8
- +
1 112-PU-6
102-RD-12
109-RD-10
R1
9X1339
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
A893-OR-16
777-PU-16
619-GN-16
614-PU-16
608-GN-16
606-GY-16
605-YL-16
406-PU-16
405-GY-16
404-YL-16
403-GN-16
322-GY-16
310-PU-16
308-YL-16
307-OR-16
306-GN-16
125-OR-16
121-YL-16
110-GN-16
A990-BU-16
C906-PU-16
C922-BR-16
C926-BU-16
G736-PK-16
G797-BU-16
374-PK-16
200-BK-16
201-BK-16
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
PLUG
R2
1275484
1
R4
1297164
1
R3
1275486
P5
3E5519
C935-PU-16
C935-PU-16
C922-BR-16
C937-WH-16
PLUG
SPRAY
RELAY 7X1379
30
87A
87
P6
3E5519
122-BU-16
122-BU-16
G736-PK-16
G797-BU-16
PLUG
FAN MOTOR
RELAY 7X1379
30
87A
87
P10
3E5519
P12
3E5519
307-OR-16
330-YL-16
PLUG
201-BK-16
306-GN-16
INTERLOCK 1
RELAY 7X1379
START
RELAY 7X1379
30
87A
87
30
87A
87
P11
3E5519
201-BK-16
C720-BU-16
PLUG
C906-PU-16
C906-PU-16
INTERLOCK 2
RELAY 7X1379
30
87A
87
P8
3E5519
F765-BR-16
419-YL-16
PLUG
201-BK-16
777-PU-16
BRAKE 1
RELAY 7X1379
30
87A
87
P9
3E5519
C720-BU-16
419-YL-16
PLUG
201-BK-16
419-YL-16
BRAKE 2
RELAY 7X1379
1
2
4
5
3
30
87A
87
F765-BR-16
307-OR-16
PLUG
C906-PU-16
2
3 1
ALT
HYD
TEMP
ENG
OIL
PRESS
ENG
TEMP
WARNING LIGHTS
1503596
406-PU-16
404-YL-16
123-WH-16
405-GY-16
403-GN-16
1
2
4
X1X23
SWITCH-HORN
3T2357
DRUM SELECT
SWITCH
4D1836
KEY SWITCH
9G7641
VIB
LAMP
INDICATOR
46
5
13
2
HAZARD
SWITCH
3T4405
START AID
SWITCH
9D3721
TURNING
SIGNAL
INDICATOR
TIMER
1045496
EMULSION
SWITCH
9D3721
+ BATTERY
OUTPUT
GROUND
C937-WH-16
200-BK-16
C935-PU-16
105-RD-16
308-YL-16
330-YL-16
ST
ON
OFF
B
S
C
R
200-BK-16
419-YL-16
419-YL-16
F765-BR-16
110-GN-16
110-GN-16
BRAKE SWITCH
1165275
1166565
1227344
4 2
3
1
6
LIGHT SWITCH
3K1650
310-PU-16
308-YL-16
123-WH-16
322-GY-16
TURN SIGNAL
SWITCH
1V6652
A990-BU-16
200-BK-16
A541-PU-16
200-BK-16
537-GN-16
537-GN-16
1
2
3
125-OR-16
118-GY-16
119-PK-16
121-YL-16
10A
123-WH-16
10A
122-BU-16
10A125-OR-16
10A110-GN-16
15A
109-RD-10
105-RD-16
10A
108-BU-16
112-PU-10
112-PU-10
112-PU-10
112-PU-10
112-PU-10
112-PU-10
112-PU-10
112-PU-10
CLUSTER/HORN FUSE
KEY SWITCH FUSE
FAN MOTOR FUSE
VIB FUSE
BRAKE/NEUTRAL FUSE
BACKUP/BEACON FUSE
EMULSION SPRAY FUSE
WATER SPRAY FUSE
FLASHER FUSE
10A
10A
10A
605-YL-16
605-YL-16
606-GY-16
606-GY-16
608-GN-16
614-PU-16
619-GN-16
A893-OR-16
C926-BU-16
119-PK-16
WATER SPRAY
SWITCH
1V6652
1
2
3
C922-BR-16
118-GY-16
C935-PU-16
GROUND
OUTPUT
IND LAMP
+ BATTERY
108-BU-16
A541-PU-16
537-GN-16
201-BK-16
FLASHER
0814291
102-RD-12
537-GN-16
HARNESS AS.-INSTRUMENT 1635585
NOT USED FOR CB-225D
P13
3E5519
110-GN-16
374-PK-16
C720-BU-16
201-BK-16
307-OR-16
NEUTRAL SWITCH
RELAY 7X1379
30
87A
87
307-OR-16
FLOW
DIVIDER
MOTOR
PLUG
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
4
5
3
THIS SCHEMATIC IS FOR THE CB214D, CB224D,
1
2
4
5
3
1
2
4
5
3
CB225D ASPHALT DRUM COMPACTORS (177-8737)
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.
PANEL LAMP CIRCUIT.
GAUGE CIRCUIT.
WIPER/WASHER/TURN SIGNAL CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
