KENR3069-01
March 1998
CB-224C Combi
Electrical System
CB-224C Combi:
3AL1-UP
Vibratory Compactor
©
1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
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.
A
116-BR
ROTARY
BEACON
118-1227
081-2751
1
23
21
22
18
5
9
17
10
15
2
8
6
13
19
7
14
12
L19
604-OR
STOP BULB
1
REAR
CHASSIS
L12
605-YL
606-GY
605-YL605-YL
606-GY
606-GY
L14
L13
L12
L13
L13
J17P17
A
A
A
A
2 1
3
C923-OR
SPRAY
SW-REAR
123-WH
C
C
C
C
C935-PU
C922-BR123-WH
SPRAY
SW-FRONT
1V-6652
C922-BR
3
12
INSTRUMENT PANEL
GROUND
C923-OR
135-7156
P18
J18
C923-OR
MOTOR
200-BK
WATER SPRAY
PUMP GP-REAR
2 1
A
IDENT PART NO.
HARNESS AS.
CIRCUIT GROUPING
DESIGNATION
#L
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
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
SYMBOLS
103-8897H
1G-4639G
130-2462F
CABLE AS.
104-7725E
WIRE AS.
104-7726D
1G-3894C
134-9683B
A
A C
A
CA
J6P6
REAR WORKING
LAMP GP
1G-4659
REAR LAMP GP
081-3722
TAIL LAMP BULB 081-2745
TURN BULB 081-2751
L12
L16
L15L15
L16
L15
L16
L15
L16
L9
L15
L16
L15
L16
L15
INSTRUMENT PANEL
C
C
C
C
C
C
C
CC
C
C
C
C
C
C
C
C
C
C
L14
C
200-BK-14
C C
C
C
C
C
C
C
C
C
C
CC
C
C
C
C
200-BK
608-GN-14
403-GN
BRAKE
RELAY 2
3E-9362
200-BK-10
BRAKE
RELAY 1
3E-9362
200-BK-10
INSTRUMENT PANEL
GROUND
110-GN
608-GN-14
614-PU
619-GN-14
+-
110-GN
4
21
R
419-YL
B765-BR
102-BU-10
L15
C744-PU
308-YL
110-GN
403-GN
405-GY
C902-GY
322-GY
121-YL
C922-BR
605-YL
606-GY
608-GN-14
102-BU-10
116-BR
C902-GY
405-GY
405-GY
200-BK
A541-PU
TURN SIGNAL
IND LAMP
8L-9801
NOTE B:
110-GN
123-WH
605-YL
606-GY537-GN
LAMP-RED
C
G
A
C720-BU
ENGINE IND
LAMP
8L-9801
NOTE A
ALTERNATOR
IND LAMP
8L-9801
NOTE C
116-5275
87a
30
HOUR METER
6T-7337
87
R
BRAKE SW AS.
J
BLK-CONTACT
BLOCK-TL
SW-OPR
2 1
85
3
86
INTERLOCK
RELAY 1
3E-9362
130-2461
122-7344
116-6565
3
C720-BU
614-PU
403-GN
200-BK
200-BK
C906-PU
C906-PU
C906-PU
C906-PU C906-PU
C902-GY
C902-GY
C902-GY
C720-BU
110-GN110-GN
403-GN
TURN SIGNAL SW
1V-6652
110-GN
110-GN
C935-PU
200-BK
LIGHT SW
3K-1650
B+
87a
30
87
85
86
86
85
C906-PU
C720-BU
419-YL
403-GN
C744-PU
C744-PU
B765-BR
B765-BR
419-YL
419-YL
87
30
87a
419-YL
419-YL
619-GN-14
307-OR
105-BR
C906-PU
614-PU
614-PU
614-PU
605-YL
614-PU
614-PU
200-BK
4
8
7
SPEEDOMETER
132-9956
A
A
A
449-BU
110-GN
200-BK
110-GN
200-BK
SIG
L20
G
449-BU
200-BK
I
A
MAGC SPEED
SENSOR
3E-8848
1
STOP BULB 081-2751
L19
604-OR
2
J19
P19
L20
DISCONNECT SW.
7N-0718
BK-00
CABLE AS.
130-2461
CABLE AS.
130-2462
J
J
4
2
1
3
116-BR
2
116-BR
1
1
H
E
405-GY
604-OR
405-GY
L6
L6 L6
L6
L4
604-OR
L4
L6
L4 L4
L6
L4L4
L6
L4L4
L3
A
L6
L3
200-BK
L3
L3
L8
L3
200-BK
L5
A
200-BK
L20
2
P12
L3
A
L2
L5
L2
L1L5 L1
L4
L1
L7
J14 P14
J5P5
A
A
A
A
A
A
L21
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
H
RD-00
F
304-WH-10
109-OR-6
F
D
D
G
D
D
FRONT
CHASSIS
GROUND
A
110-GN
105-BR 101-RD
112-PU
112-PU
112-PU
112-PU
10A
200-BK
FORWARD HORN
121-YL
110-GN
6
121-YL
FRONT
CHASSIS
GROUND
BELT SW
104-4336
ALT
AIR FILTER
SW
081-2699
OIL PRESS
SW
081-2402
112-PU
ROTARY BEACON
619-GN-14
C744-PU
20
403-GN
A990-BU
L1 L1
L8
L8
L4
J16
200-BK-14
200-BK
619-GN-14
P16
J15 P15
A
ATTACHMENT
FLOOD LAMP
1G-4658
A
A
A
A
A
A
A
A
A
A
A
A
A
A
5
4
BULB
081-2751
TURN
SIGNAL
1G-4643
A
A
A
A
A
A
A
HEADLAMP BULB
L21
A
A
3
2
1
6
5
4
116-BR
116-BR
3
2
L21
1
L11
L11
PARKING LAMP BULB
A
A
A
C937-WH
A
200-BK
A
A
L11
L10
L9
L17
L11
L17
L10
A
L17
A
L7
A
081-2873
A
A
081-2968
A
B
A
8M-8948
3K-8782
KEY SW
BRAKE SOL, INTERLOCK SOL, MON LAMP
TURN SIGNALS
A
SPRAY SYSTEM
A
BACKUP ALARM
VIBRATION SOL
L9
114-GN
121-YL
A
15A
10A
FUSE
FUSE HOLDER
4K-5122
123-WH
116-BR
102-BU-10
A
200-BK-14
308-YL
403-GN
405-GY
A
VIBRATION-SELECTOR
SOL VALVE GP
132-2176
101-RD
ENGINE
GROUND
A
A
A
A
B
A
A
A
A
B
A
A
A
A
A
2
1
B
200-BK
C
C
C
C
C
C
B
C
B
C
B
C
B
C
C
C
CC
C
C
C
C
C
C
C
403-GN
405-GY306-GN
322-GY
A990-BU
C926-BU
C927-PU
BRAKE-INTERLOCK
SOL VALVE GP
1G-4644
200-BK
200-BK
200-BK
200-BK
200-BK
24
200-BK
200-BK
200-BK-14200-BK
C902-GY
ROADING
LAMP
106-9945
TURN
SIGNAL
1G-4643
619-GN-14
ATTACHMENT
FLOOD LAMP
1G-4658
112-PU
G
200-BK
200-BK
112-PU
112-PU
112-PU
A
112-PU
C744-PU
619-GN-14
619-GN-14
SPRAY
RELAY FRONT
3E-9362
200-BK-14
SEAT SW
125-0672
121-YL
ALTERNATOR
BREAKER
9S-0174
121-YL
619-GN-14
619-GN-14
081-2751
308-YL
307-OR
200-BK-14
200-BK-14
BULB
081-2751
081-2968
081-2873
PARKING LAMP BULB
HEADLAMP BULB
200-BK
B
2
B
B
114-GN
ROADING
LAMP
106-9945
TURN BULB
1
405-GY
21
1
081-2745TAIL LAMP BULB
A990-BU
C926-BU
C927-PU
2
614-PU
619-GN-14
C902-GY
405-GY
605-YL
403-GN
606-GY
322-GY
105-BR
308-YL
102-BU-10
606-GY
102-BU-10
308-YL
105-BR
322-GY
606-GY
403-GN
605-YL
606-GY
405-GY
C902-GY
619-GN-14
123-WH
614-PU
114-GN
200-BK
110-GN
121-YL
110-GN
200-BK
C902-GY
C902-GY
614-PU
C744-PU
200-BK
116-BR
FORWARD
HORN
7T-0635
123-WH
116-BR
BATTERY
3T-5760
HATZ ENGINE
AS.
308-YL
STRAP AS. 1G-4666
BK-00
RD-00
A
109-OR-6
FRONT
CHASSIS
GROUND
J1
STRAP AS. 081-4320
101-RD-6
D
109-OR-6
105-BR
START RELAY
109-OR-10
322-GY
306-GN
C902-GY
C927-PU
A
C926-BU
FRONT
CHASSIS
GROUND
614-PU
J10
121-YL
STRAP AS. 1G-4665
P10
J4
P4
J3
A990-BU
200-BK
C922-BRC935-PU
C935-PU
C937-WH
C935-PU
A990-BU
121-YL
306-GN
1
200-BK
2
200-BK
537-GN
116-BR
IND LAMP
304-WH-10
87a
30
87
85
86
TIMER SPRAY FRONT
104-5496
OUTPUT
+ BATTERY
GROUND
86
85
87 30
87a
C744-PU
109-OR-6
REAR
CHASSIS
GROUND
REAR
CHASSIS
GROUND
4
109-OR-10
101-RD-10
321-BR
102-BU-10
109-OR-6
LAMP BREAKER
3T-8728
110-GN
10A
121-YL
200-BK
322-GY
308-YL
405-GY
405-GY
INTERLOCK
SW
VIBRATION
CONTROL
GRIP AS.
1G-4704
R
10A
ALTERNATOR
081-2674
1
200-BK
101-RD-6
E
200-BK
STARTER
081-3255
606-GY
2
WATER SPRAY
PUMP GP-FRONT
135-7157
200-BK
BACKUP ALARM
3T-1815
306-GN
A990-BU
NEUTRAL SW
322-GY
INSTRUMENT PANEL
P3
321-BR
307-OR
306-GN
A990-BU
605-YL
114-GN
16
C926-BU
A990-BU
200-BK
121-YL
200-BK
BACKUP
ALARM SW
307-OR
123-WH
200-BK
116-BR
3
110-GN
C927-PU
J13
P13
MOTOR
C922-BR
J8
200-BK
614-PU
C902-GY
200-BK
200-BK-14
200-BK-14
J9
1 2
200-BK
C720-BU
105-BR
C902-GY
114-GN
CONTROL BOX
619-GN-14
20
12
4
2
C744-PU
MAIN POWER
RELAY
4L-3913
P11
J12
P12
614-PU
605-YL
60
606-GY
MOTOR
614-PU
NEGPOS
619-GN-14
BATMTR
J2
S
P2
G
614-PU
619-GN-14
605-YL
200-BK-14
619-GN-14
200-BK-14
FLASHER
081-4291
HORN SW
3T-2357
614-PU
619-GN-14
614-PU
614-PU
KEY SW
9G-7641
1
614-PU
605-YL
200-BK
606-GY
200-BK
200-BK
200-BK
614-PU
C935-PU
15A
15A
A541-PU
200-BK
200-BK
200-BK
200-BK
200-BK-10
C906-PU
C720-BU
C906-PU
ST
ON
OFF
B
S
C
R
4
110-GN
605-YL
1
P1
2
REAR
CHASSIS
GROUND
INTERLOCK
RELAY 2
3E-9362
P9
J7
306-GN
P7
321-BR
REAR LAMP GP
081-3751
P8
GROUND
+ BATTERY
OUTPUT
11
15A
1
117-9080
8L-9801
K
9G-0011
K
K
158-5966 158-5966
158-5966
154-4702
135-7252
HARNESS AS.
K
E40369
Component
1
2
3
4
5
6
7
8
9
10
11
12
13
14
STANDARD COMPONENTS
Item No.
Neutral Start Switch
Propel Brake Interlock Solenoids
Operators Gauge Panel
Rear Working Lamps
Relay Bank (6)
Front Working Lamps
Secondary Brake Switch
Rear Water Spray Pump
Front Water Spray Pump
Vibratory Control Solenoids
Fuse Block
Main Disconnect Switch
Batteries
Vibratory Control Switch
Alternator Circuit Breaker
Backup Alarm
15
16
E40297
6
7
4
3
5 11
10
8
9
7
2
1
1
1
6
6
12 2
3
11 10
9
8
4
14
15
15
14
13
5 10
CB-224C
COMBI
E40247
10
12
13
16
16
