416B-438B BHL (US CAB) ELECTRICAL SYSTEM SCHEMATIC

©
1993 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR5814
May 1993
416B, 426B, 428B, 436B And 438B
Electrical System
416B:
8SG1-UP
8ZK1-UP
428B:
7EJ1-UP
438B:
3KK1-UP
426B:
5YJ1-UP
6KL1-UP
Backhoe Loaders
436B:
6MJ1-UP
7FL1-UP
Wire Description Chart
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Monitoring Circuits (cont'd.)
101
RD
BAT
447
PK
FUEL LEVEL GAGE
102
BU
HD LMP
450
YL
TACH SENDER (+)
103
YL
AUX CKT
483
BR
BRAKE FLUID LEVEL
105
BR
KEY SW
109
OR
ALT OUTPUT (+) TERM.
500
BR
WIPER - FRONT (PARK)
112
PU
MAIN POWER RELAY OUTPUT
501
GN
WIPER - FRONT (LO)
113
OR
OPR MON PANEL B+ SWITCHED
502
OR
WIPER - FRONT (HI)
116
BR
AUX CKT
503
BR
WIPER - REAR (PARK)
118
GY
AUX CKT
504
YL
WIPER - REAR (LO)
119
PK
AUX CKT
505
BU
WIPER - REAR (HI)
120
YL
AUX CKT
506
PU
WASHER - FRONT
121
YL
BACKUP ALARM TO LAMP
513
OR
A/C COMPRESSOR/REFRIGERANT PRESS SW
122
BU
AUX CKT
515
GY
BLOWER MOTOR (HI)
123
WH
AUX CKT
516
GN
BLOWER MOTOR (MEDIUM)
124
GN
A/C
517
BU
BLOWER MOTOR (LO)
126
PK
XMSN CONT
520
WH
OPR A/C SW TO THERMOSTAT/FUSE
128
PK
AUX CKT
521
YL
A/C SW TO REFRIGERANT SW
143
BR
AUX CKT
522
WH
A/C CLUTCH TO THERMOSTAT SW
157
YL
AUX CKT
536
WH
HAZARD SW TO TURN SW
161
PK
AUX CKT
552
WH
FOUR WHEEL DRIVE SOL
194
GN
AUX CKT
568
GN
WARNING BUZZER TO DIODES
576
PK
WIPER - AUX (LO)
200
BK
MAIN CHASSIS
577
PU
WIPER - AUX (HI)
265
BK
AUX
A512
GN
REAR INTERRUPT SW TO WIPER MOTOR
270
BK
AUX
603
PK
ROTARY BEACON
303
BR
KEY SW ACC POSITION
604
OR
STOP LAMP
304
WH
STARTER RELAY NO.1 OUTPUT
605
YL
TURN LAMP - LEFT
306
GN
STARTER RELAY COIL TO NEUT START SW OR
606
GY
TURN LAMP - RIGHT
KEY SW
607
PK
FLOOD LAMP - FRONT
307
OR
KEY SW TO NEUT START SW OR VMIS SENSOR
608
GN
FLOOD LAMP - REAR
MODULE
610
OR
HEAD LAMP BASIC
308
YL
611
PU
HEAD LAMP HI
309
GY
ALTERNATOR REGULATOR TERM
614
PU
PARK/TAIL/DASH LAMP
310
PU
START AID SW TO START AID SOL
617
BR
TAIL/POSITION LAMP - LEFT (ROAD PKG)/WIDTH
321
BR
BCKP ALARM LAMP TRAVEL ALARM
618
YL
TAIL/POSITION LAMP - RIGHT (ROAD PKG)/WIDTH
322
GY
WARNING HORN (FORWARD)
619
GN
HEAD LAMP LO
367
BU
WARNING HORN (REAR)
620
WH
FLOOD LAMP - FRONT (ENG FLOOD LAMP)
372
GN
STABILIZER LOCK VALVE RTN
630
GY
FLOOD LAMP REAR (ATTACH)
634
WH
HEAD LAMP SW TO WORK/HEAD LAMP JUMPER
405
GY
OPR MON OIL PRESS. (LO SETTING)
406
PU
OPR MON COOLANT TEMP
737
GN
SWITCHING GEAR CODE 5 FRONT
415
GN
OPR MON TEST SW.
762
YL
BUCKET POSITIONER SOL SW
419
YL
OPR MON PARKING BRAKE
766
GN
XMSN DISCONNECT SOL
441
OR
ENG COOLANT TEMP GAGE
776
YL
BRAKE RELEASE RELAY CONT
443
YL
POWER TRAIN TEMP GAGE
Monitoring Circuits
Accessory Circuits
Lighting Circuits
Control Circuits
Ground Circuits
Basic Machine Circuits
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
1 Alarm - Backup B-9 9 Sender - Coolant Temperature C-1
A Alarm - Action D-5 10 Sender - Fuel A-6
2 Alternator B-1 12 Solenoid - Air Conditioner Clutch D-1
3 Batteries F-5 13 Solenoid - Bucket Positioner A-4
C Breaker - Running Lamp B-8 14 Solenoid - Engine Shutdown D-2
7 Coil - Start Aid B-2 15 Solenoid - Front Drive B-2
D Diode As. D-5 18E Solenoid - Transmission Neutralizer C-2
D Flasher C-7 17E Switch - Backup Alarm/Parking Brake C-2
C Fuses C-9, E-5 B Switch - Beacon D-7
B Gauge - Converter Temperature D-8 A Switch - Blower (A/C) E-5
B Gauge - Coolant Temperature D-8 A Switch - Blower (Heater) D-4
B Gauge - Fuel D-9 27 Switch - Brake Fluid Level C-4
B Gauge - Tachometer D-9 20 Switch - Coolant Temperature D-2
4 Horn - Forward A-1 22 Switch - Engine Oil Pressure D-2
B Meter - Service D-8 A Switch - Forward Horn C-3
B Meter - Volt D-8 A Switch - Front Drive C-3
A Motor - Blower (A/C) E-5 B Switch - Front Wiper C-6
A Motor - Blower (Heater) C-4 B Switch - Front Flood E-7
A Motor - Fan E-7 B Switch - Key Start C-7
A Motor - Front Wiper E-3 23 Switch - Neutral/Start C-2
A Motor - Rear Wiper (Lower) E-8 A Switch - Parking Brake D-5
A Motor - Rear Wiper (Upper) E-9 B Switch - Rear Flood Lamp E-7
5 Motor - Starter E-2 B Switch - Rear Lower Wiper E-6
C Relay - ACC C-7 B Switch - Rear Upper Wiper C-6
C Relay - A/C B-9 26 Switch - Refrigerant F-1
C Relay - Cab C-9 21 Switch - Return To Dig D-1
C Relay - Lamp Check B-7 B Switch - Running Lamp D-6
C Relay - Main C-8 B Switch - Start Aid D-7
C Relay - Start B-8 A Switch - Thermostat D-5
C Resistor - Alternator Field C-7 A Switch - Turn Signal/Hazard E-3
A Resistor - Blower Motor Speed (A/C) E-5 27D Switches - Brake (Stop Light) D-4, E-4
A Resistor - Blower Motor Speed (Heater) D-4 A Switches - Transmission Neutralizer B-6, C-5
8 Sender - Converter B-2
A = Components in operator compartment.
B = Components in operator compartment - right console.
C = Components on relay panel (inside right console).
D = Components in front console/dash.
E = Components in operator compartment - under floor plate.
Component Location Chart
Connectors
Machine
Location
Harness And/Or Components
Schematic
Location
B - 9R-8619
E - 9R-8622
E - 9R-8622
H - 9R-8623
E - 9R-8622
H - 9R-8623
D - 9R-8621
E - 9R-8622
E - 9R-8622
L - 9R-8624
E - 9R-8622
Diode As.
A - 9R-9554
K - 9R-9555
A - 9R-9554
Front Wiper Motor
A - 9R-9554
Rear Wiper Motor (Upper)
E - 9R-8622
G - 9R-8843
E - 9R-8622
Turn/Hazard Switch
E - 9R-8622
H - 9R-8623
* = Connector is located at the component.
C = Connector in right console.
D = Connector in front console/dash.
E = Connector in operator compartment - under floor plate.
4 Contacts
*
C
E-3
B-8
*
Harness Connector Location Chart
12 Contacts
8 Contacts
6 Contacts E-9
C
C
C
D
*
C
*
A-4
A-8
B-7
B-8
B-4
E-4
D-5
B-7
D-3
1
E
1
E
Off Machine Switch Specifications
Part No. Function Actuate Deactuate Contact Position
6T2665 Coolant Temperature
107.2 ± 2.8°C
(225 ± 5°F)
93°C MIN
(196°F MIN)
Normally
Closed
9D6888 Refrigerant Pressure
234 kPa MAX
(34 psi MAX)
152 kPa MIN
(22 psi MIN)
Normally
Open
Resistor and Solenoid Specifications
Component Part No. Resistance (Ohms)¹
Resistor - Alternator 8C4110 22 ± 1.1
Resistor - Blower Motor Speed 7T3828 Overall 1.0 ± .1; Tap 0.5 ± .05
Solenoid - A/C Clutch 3E7703 3.5 ± 0.15
Solenoid - Bucket Positioner 3E8620 21.8 ± 1.0
Solenoid - Front Drive/Trans Neutralizer 3E7507 7.7 ± .77
¹ At room temperature.
A
1
3
4
5
8
9
10
12
14
15
13
B
C
D
1
2
17
18
20
21
22
23
26
27
7
A
1
3
4
5
8
9
1
0
1
2
1
4
1
5
1
3
B
C
D
1
2
1
7
1
8
2
0
2
1
2
2
2
3
2
6
2
7
7
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.
6
1
2
2
4
3
2
1
C
B
A
2
1
2
1
2
1
A
B
5
4
C
1
2
3
1
2
12
3
11
10
9
8
7
6
5
4
3
2
1
12
11
10
9
1
2
4
5
6
2
1
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
2
C
B
A
1
1
2
1
4
5
5
6
4
3
1
2
5
2
4
200-BK-16
S
S
BK-14
JJ
JJ
JJ
B
B
B
B
B
B
B
G
A
SEND
H
H
REAR
HORN SW
B
B
G
G
103-YL-16
109-OR-16 109-OR-16
109-OR-16
H
H
H
603-PK-16
L39
H
H
307-OR
H
H
200-BK
200-BK
200-BK
L22
L20
L20
N/O
N/C
1
3
J
NOTE F: USED ON 416B & 428B ONLY. FUEL SENDER
6T-0454 USED ON 426B, 436B & 438B ONLY
E
REAR UPPER
WIPER SW
3T-6655
NOTE D
B
H
L
P W
B
D
D
D
D
372-GN
D
D
BB
321-BR
372-GN
E
321-BR
200-BK
D
113-OR
483-BR
483-BR
BRAKE FLUID
LEVEL IND LAMP
8L-9801
BK-00
L
BK-00
200-BK
1
415-GN
415-GN
405-GY
406-PU
415-GN
483-BR
CC
U U
U
U
9R-9867
L27
L27
L31
L31
L38
L38
L37L44
L44L44
L42
L42
L42
L43
L43
L43
L34
L34
L30L30
L7
L7
L11
L11
L11
L11
L11
L11
L18
L25
L20
L12
L12
L22
L7
L7
L17
L23
L30 L30
L30 L30
L30
L33
L34 L34
ATCH
L35
L35
L35
L35
E-7
L36
L36
L36
L36
L36
L37
L37
L37
L37
L38
L38
L39
L39
L27
01
L26
L26
ATCH
F-5
F-5
F-5
F-5
B-6/C-4
AA
KK
KK
M
J
L L
L
L
L
L
L
L
L
D
D
B
B
R
R
R
C
C
B
B
G
D
D
D
D
D
D
F-9
ATCH
D-1
C-4
D-6
E-6
D
B-6
H
H
H
H
H
H
H
H
E-4
B-7
109-OR-12
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H H
H
H
H
ATCH
H
H
D
ATCH
H
H
H
H
H
H
H
H
H
D
H
121-YL
112-PU-10
E
H
H H
E
H
H
H
H
H
200-BK
200-BK
D
610-OR-16
441-OR
200-BK
200-BK
443-YL
200-BK
200-BK
200-BK
200-BK
441-OR
443-YL
447-PK
123-WH
568-GN
568-GN
607-PK-16
568-GN
123-WH
123-WH
123-WH
123-WH
419-YL
6
4
3
1
00
00
01
00
02
101-8461
101-4295
9R-7939
483-BR
7T-3550
9R-8625
9R-8624
9R-9555
9R-8623
9R-8843
9R-8622
9R-8621
9R-9536
9R-8619
JJ
HH
GG
CC
V
R
L
123-WH
483-BR
200-BK
BRAKE FLUID
LEVEL SW
4E-8619
BR
BK
200-BK
NOTE E: USED AS ATCH ON 428B & 438B
D-2
03
02
02
200-BK
200-BK
200-BK
604-OR
200-BK
01
143-BR
03
L39
H
K
304-WH-10
143-BR
H
120-YL-12
143-BR
B
BB
R
CC
H
R
CC
L39
L39
L41
L39
522-WH
520-WH-12
1
2
552-WH
322-GY
143-BR
405-GY
113-OR
483-BR
614-PU
307-OR
200-BK
200-BK
200-BK
161-PK
119-PK
H
200-BK
200-BK
304-WH-10
START
RELAY
7X-1379
521-YL
522-WH
200-BK-12
120-YL-12
200-BK-12
614-PU
614-PU
634-WH-16
L6
L2
H
502-OR
500-BR
123-WH
762-YL
AA
02
B
118-GY
B
501-GN
200-BK
200-BK-12
L25
200-BK-12
605-YL
606-GY
DIODE AS.
2V-9473
DIODE AS.
2V-9473
405-GY
113-OR
536-WH
605-YL
606-GY
406-PU
419-YL
128-PK
605-YL
606-GY
639-WH
640-GN
RESISTOR
7T-3828
NOTE D
515-GY-12
BK-00
BK-00
516-GN-12
L25
BK-16
406-PU
200-BK
GN-16
322-GY
RD-16
WH-16
419-YL
568-GN
321-BR
109-OR-4
200-BK
109-OR-4
322-GY
200-BK
200-BK
620-WH
200-BK
200-BK
200-BK-10
200-BK
200-BK-10
502-OR
500-BR
200-BK
119-PK
200-BK
502-OR
501-GN
500-BR
504-YL
505-BU
639-WH
119-PK
640-GN
119-PK
604-OR
118-GY
536-WH
L41
200-BK
605-YL
128-PK
322-GY
102-BU
503-BR
L6
200-BK
109-OR-12
R
419-YL
LAMP CHECK
RELAY
7X-1379
419-YL
L2
568-GN
L14
522-WH
200-BK-12
K
405-GY
L1
JJ
406-PU
122-BU-12
515-GY-12
118-GY
419-YL
200-BK-12
L32
113-OR
517-BU-12
143-BR
606-GY
H
G
E
D
C
161-PK
161-PK
HEATER
BLOWER
SW
6P-3236
NOTE D
122-BU-12
200-BK-12
113-OR
310-PU-16
405-GY
113-OR
143-BR
536-WH
309-GY
450-YL
310-PU-16
441-OR
406-PU
308-YL
405-GY
419-YL
321-BR
121-YL
447-PK
128-PK
322-GY
200-BK-10
200-BK
447-PK
121-YL
109-OR-12
109-OR-10
109-OR-10
309-GY
450-YL
310-PU-16
603-PK
608-GN-16
303-BR
200-BK
05
450-YL
103-YL-10
441-OR
308-YL
200-BK
D D
D
D
D
D
L
D
L41
B
L17
308-YL
L32
308-YL
308-YL
R
105-BR-16
415-GN
200-BK
ACC RELAY
7X-1379
200-BK
B
109-OR-10
306-GN
307-OR
MAIN
RELAY
7X-1379
K
L16
308-YL
L15
L15
L17
L25
H
308-YL-16
K
310-PU-16
K
310-PU-16
309-GY
614-PU
L40
NOTE D: USED AS ATCH ON 416B, 426B &436B
L44
L33
L16
308-YL
L12
L12
L23
606-GY
200-BK-16
610-OR
620-WH
109-OR-10
161-PK-16
143-BR
200-BK
200-BK
308-YL
H
102-BU
102-BU-16
L23
304-WH-10
109-OR-10
109-OR-10
109-OR-10
109-OR-10
E
H
506-PU
620-WH-16
610-OR-16
607-PK-16
603-PK
608-GN-16
630-GY-16
441-OR
443-YL
447-PK
B
450-YL
L20
U
ATCH
310-PU-16
309-GY
1V-1151
200-BK-16
536-WH-16
161-PK-16
307-OR
ATCH
415-GN
308-YL
306-GN
121-YL
128-PK
113-OR
143-BR
126-PK
618-YL
143-BR
415-GN
L22
A
L22
L19
L37
103-YL-10
M
116-BR-16
BB
L# CIRCUIT GROUPING
DESIGNATION
116-BR-16
H
200-BK-12
102-BU-16
L19
102-BU-16
J
157-YL
200-BK
L19
L45
109-OR-16
109-OR-16
109-OR-10
304-WH-10
L18
103-YL-10
2
FRONT FLOOD
LAMP SW
3E-7270
2 1
109-OR-4
620-WH-16157-YL
H
H
H
TO
PLATFORM
L40
L24
JJ
2
L1
630-GY-16
608-GN-16
12
101-0732
2 1
8Y-8075
8Y-8076
634-WH-16
610-OR-16
367-BU
L24
K
H
102-BU
H
L40
L42
L45
119-PK
103-YL-16
H
K
K
L40
614-PU
H
113-OR
L32
L18
H
H
E
COOLANT
TEMP GAGE
3E-8535
VOLTMETER
3E-8533
E
SERVICE
METER
6T-7337
TACHOMETER
3E-3507
K
04
SW
3E-7341
450-YL
200-BK
A
303-BR
A
JJ
116-BR-12
614-PU
128-PK
614-PU
112-PU-10
200-BK
02
123-WH
157-YL
614-PU
K
E
START
AID SW
3E-7272
L18
614-PU
H
614-PU
L13
A
E
H
00
00
109-OR-10
128-PK
K
367-PU
103-YL-10
E
B
B
200-BK
A/C
RELAY
7X-1379
109-OR-10
109-OR-10
CC
8
REAR HORN
YL-16
CC
G
EU
L
L
200-BK
E
E
V
A
E
D
D
FLOOD
LAMP
9X-6853
D
CC
102-BU
200-BK
200-BK 200-BK
D
102-BU
RADIO
119-PK
536-WH-16
161-PK-16
CC
CC
CONNECT HARNESS AS. GG TO HARNESS
AS. B AND BEACON 9R-8250 AS SHOWN
L9
L9
E
603-PK-16
603-PK
E
E
E
D
E G
D
B
G C
8Y-8074
BEACON
9R-8250
603-PK-16
200-BK
A
B
GG
GG
200-BK
200-BK
7P-6682
200-BK
AA
200-BK
200-BK
01
CC
S
KK
E
E
L16
L40
V
L24
L
L29
L
L25
L16
E
L25
E
L
R
A
E
L14
E
L8
L8
L21
E
JJHH
119-PK
L9
L13
L13
L13
L26
L26
L31
L4
L15
L15
L3
L38
K
A
L7
L7
L7
L4
L5
L5
L5
L5
L3
L3
B
608-GN
200-BK
576-PK
A
577-PU
119-PK
REAR LOWER
WIPER MOTOR
9X-4530
OR-16
BR-16
K
K
K
405-GY
K
L35
119-PK
B
H
L
P W
B
614-PU
614-PU
BATMTR
406-PU
762-YL
NOTE B: NORMALLY CLOSED WHEN BRAKE IS DEPRESSED
630-GY
THIS SCHEMATIC IS FOR THE 416B, 426B, 428B, 436B &
438B BACKHOE NACD (9X-7210 CHG 00)
CABLE AS.
630-GY-16
447-PK
603-PK
6
3
1
419-YL
4
5
3
419-YL
322-GY
200-BK
200-BK
OR-16
200-BK-10
610-OR
200-BK
200-BK
143-BR
2
WIRE AS.
HARNESS AS.
LOCPART NO.IDENT
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
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
FOR A SINGLE SHEET VERSION OF THIS SCHEMATIC
CONTACT DESIGN CONTROL
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF,
AND XMSN SHIFTER IN NEUTRAL
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 18 GAGE
C
B
A
1
3 2
F
E
6 5 4
C
B
A
8 7
9
F
E
D
123-WH
H
MOTOR
TO
PLATFORM
123-WH
200-BK
200-BK
FLOOD
LAMP
9X-6853
STOP/
TAIL
LAMP
3E-7398
T
S
200-BK
200-BK
200-BK-16
200-BK
B
605-YL
610-OR
620-WH
6
367-BU
5
4
1
639-WH
200-BK
617-BR
617-BR
639-WH
200-BK-16
610-OR
2
3
1
2
113-OR
128-PK
5
1
4
E
9R-9554
FAN AS.
5D-2855
119-PK
OR-14
RD-14
109-OR-4
308-YL-16
116-BR-12
200-BK-10
6
GY-16
3
GN-16
605-YL
620-WH
608-GN
200-BK
1
1
119-PK
200-BK-16
GG
GG
GG
K
K
K
K
309-GY
H
3E-9093
161-PK
552-WH
443-YL
766-GN
568-GN
321-BR
306-GN
307-OR
143-BR
128-PK
322-GY
640-GN
639-WH
605-YL
606-GY
122-BU-12
419-YL
HH
405-GY
450-YL
BK-14
BLOWER
MOTOR
3E-7501
NOTE D
BR
LT GN
143-BR
143-BR
415-GN
2
7
GROUND
HIGH
LOW
200-BK
OPERATOR STATION
OPERATOR STATION
REAR UPPER
WIPER MOTOR
3E-7566
NOTE D
HH
K
504-YL
505-BU
503-BR
INTERMITTENT
119-PK
L21
C
200-BK
200-BK
B
G
BK-16
L
H
MOTOR
L7
00
INTERMITTENT ADJ
B+
GND
L4
A
450-YL
L5
A
BACKUP
ALARM
102-9236
606-GY
BK
BK
536-WH
161-PK
200-BK
610-OR-16
605-YL
200-BK
568-GN
NOTE
H
307-OR
T
S
STOP/
TAIL
LAMP
3E-7398
200-BK
FLOOD
LAMP
9X-6853
640-GN
618-YL
200-BK
200-BK
200-BK
119-PK
310-PU-16
441-OR
630-GY
308-YL
194-GN-10
200-BK
443-YL
H
603-PK
200-BK-16
200-BK
630-GY
FLOOD
LAMP
9X-6853
L
MOTOR
103-YL-10
PARK
BRAKE SW
6T-5925
D
200-BK
608-GN
D
200-BK
D
200-BK-16
200-BK-12
121-YL
161-PK-16
STOP LAMPS
00
HAZARD LAMPS
121-YL
H
R
R
9X-8079
308-YL
BEACON
FIXED
MAGNETIC
614-PU
102-BU-16
121-YL
419-YL
L6
536-WH-16
H
H
H
H
H
607-PK-16
NOTE C: FUSES 10A-9W1442 15A-9W1441 20A-9W1446
H
H
200-BK
614-PU
116-BR-12
H
200-BK
H
H
H
CONV
TEMP
GAGE
3E-8534
200-BK
H
D
367-BU
119-PK
200-BK
K
10A
SPARE
H
200-BK-16
R
CHG
FUSE
HOLDER
9W-2035
NOTE C
112-PU-10
10A
- +
200-BK
FLOOD
LAMP
9X-6853
447-PK
- +
SIG
IGN
SEND
GRD
OPERATOR STATION
OPERATOR STATION
IGN
SEND
GRD
IGN
SEND
GRD
IGN
GRD
RESISTOR
8C-4110
607-PK-16
15A
DIODE
8C-5441
15A
LAMP
8M-6176
REAR FLOOD
LAMP SW
3E-7270
ATTACH
3E-7268
BEACON SW
3E-7270
ACC
A
ST
ON
OFF
B
S
LAMP
8M-6176
LAMP
8M-6176
443-YL
LAMP
8M-6176
XSMN NEUT/FRONT DRIVE
321-BR
49A
BACKUP ALARM/BEACON
OUT (LAMP)
+ BATTERY
GROUND
31
49
FLASHER
7T-4848
BR
157-YL
MONITOR LAMPS
122-BU-12
618-YL
617-BR
TRANSMISSION
NEUTRALIZER SW
9W-0625
TRANSMISSION
NEUTRALIZER SW
9W-0625
LEFT TURN
IND LAMP
8M-6176
B-7
A-4
PANEL
LAMP
8L-9801
620-WH
FLOOD
LAMP
9X-6853
620-WH
200-BK
E
TURN/HAZARD SW
9X-9547
200-BK-16
610-OR
443-YL
2
HEAD
LAMP
9X-6853
TURN
LAMP
3E-7500
610-OR
200-BK
605-YL
BK-16
200-BK
RD-00
RD-00
BK-00
BK-00
606-GY
BATTERY
3T-5760
BATTERY
3T-5760
NEGPOS
8
NEGPOS
501-GN
119-PK
503-BR
505-BU
504-YL
119-PK
102-BU
113-OR
04
HH
194-GN-10
128-PK
200-BK
C
KEY
R
105-BR-16
RIGHT TAIL LAMP
LEFT TAIL LAMP
HEATER
CAB
RELAY
7X-1379
NOTE D
634-WH-16
OPERATOR STATION
1
1
3
3
2
2
N/C
N/O
COM
COM
N/C
N/O
CC
M
ENGINE OIL
PRESS LAMP
8M-6176
RIGHT TURN
IND LAMP
8M-6176
COOLANT
TEMP LAMP
8M-6176
PARK BRAKE
LAMP
8M-6176
6
2
BRAKE SW
6T-5925
NOTE B
119-PK
113-OR
441-OR
LAMP
8M-6176
415-GN
FRONT
WIPER SW
3T-6655
NOTE D
BUCKET
POSITIONER
SOLENOID
3E-8620
R
617-BR
307-OR
306-GN
126-PK
447-PK
121-YL
128-PK
200-BK-16
FUEL
SENDER
3E-7128
NOTE F
B-4
FLOOD
LAMP
9X-6853
TURN
LAMP
3E-7500
1
200-BK-10
4
122-BU-12
406-PU
506-PU
608-GN-16
618-YL
617-BR
630-GY-16
620-WH-16
610-OR-16
B-4
OR-14
128-PK
603-PK
143-BR
4
200-BK-16
2
10A
304-WH-10
610-OR
620-WH
606-GY
605-YL
640-GN
639-WH
122-BU-12
606-GY
603-PK
620-WH
610-OR
617-BR
608-GN
639-WH
630-GY
605-YL
200-BK-16
200-BK
200-BK
200-BK
605-YL
640-GN
639-WH
608-GN-16
618-YL
617-BR
620-WH-16
630-GY-16
406-PU
10A
109-OR-4
BR
LT GN
2
1
766-GN
7
5
20A
6
D
LT GN
552-WH
322-GY
143-BR
766-GN
BR
200-BK
306-GN
3
307-OR
5
2
A-3
15A
126-PK
START AID
COIL
35-8059
447-PK
8
200-BK
AWD LAMP
8M-6176
483-BR
483-BR
483-BR
LT GN
ENGINE
OIL SW
7W-1238
161-PK-16
603-PK-16
610-OR-16
603-PK
9R-8250
321-BR
552-WH
2
1
406-PU
143-BR
483-BR
BRAKE SW
6T-5925
NOTE B
TO PLATFORM
123-WH
128-PK
322-GY
521-YL
FORWARD
HORN SW
3T-2357
10A
10A
10A
10A
10A
128-PK
113-OR
123-WH
121-YL
116-BR-12
118-GY
119-PK
FRONT FLOOD
BUCKETPOS/HORN
FRONT WIPER
REAR WIPER
REAR FLOOD
GAGES
RUNNING LAMP
BREAKER
3T-2662
15A
20A
121-YL
308-YL
506-PU
503-BR
118-GY
505-BU
504-YL
500-BR
501-GN
502-OR
776-GN
BK
BK
128-PK
762-YL
118-GY
118-GY
776-GN
109-OR-4
109-OR-4
406-PU
200-BK-10
200-BK
304-WH
200-BK
D
D
D
B
B
HL
W
P
CC
CC
REAR LOWER
WIPER SW
3T-6655
577-PU
576-PK
CC
505-BU
504-YL
503-BR
OPERATOR STATION
MOTOR
BK-16
RD-16
K
102-BU-16
2
614-PU
01
L
A-8
102-BU-16
102-BU-16
102-BU-16
H
6
B-7
ENGINE
SHUTDOWN
SOLENOID
6I-1173
TO
ENGINE
3
4
5
2
1
FRONT
WIPER
3E-7394
NOTE D
606-GY
568-GN
552-WH
604-OR
113-OR
568-GN
405-GY
568-GN
406-PU
603-PK
102-BU-16
BLOWER
3E-7501
3
3
4
5
2
STARTER
3E-7905
304-WH-10
BLOWER SW
6P-3236
RESISTOR
7T-3828
NOTE D
517-BU-12
516-GN-12
515-GY-12
120-YL-12
520-WH-12
L29
1
2
FORWARD
HORN
7T-0635
102-BU
118-GY
SG
1
NACD
RUNNING
LAMP SW
3E-7268
DOME
LAMP
4M-3601
200-BK
BK
WH
200-BK
10A
MOTOR
515-GY-12
FUSE HOLDER
4K-5122
124-GN-12
C
B
A
OR-14
BK-14
BK-00
E
GN-16
GY-16
BR-16
OR-16
E
H
L
MOTOR
T
200-BK
OPERATOR STATION
521-YL
521-YL
521-YL
522-WH
513-OR
REFRIGERANT SW
NOTE A
9D-6888
513-OR
200-BK
5
E
405-GY
1
7
AIR
CONDITIONER
CLUTCH
SOL
3E-7704
308-YL
K
RD-00
ACTION
ALARM
3E-6330
E
TRANSMISSION
NEUTRALIZER
SOL
3E-7507
CONVERTER
SENDER
4W-9972
E
V
FRONT DRIVE
SW
3E-7270
109-OR-4
V
V
V
V
V
D+
RB+
GND
3
ALTERNATOR
55A 3E-7295 STD
90A 9X-0341 ATCH
109-OR-4
FRONT DRIVE
SOLENOID
3E-7507
552-WH
5
TO
PLATFORM
BK
BK
BK
BK
E
TO
FRAME
M
3
5
3
6
113-OR
THERMOSTAT SW
3E-5465
10A FUSE 3K-8782
20A FUSE 8M-0546
20A 124-GN-12
522-WH
200-BK-16
6
552-WH
4
200-BK406-PU
H
H
COOLANT SW
6T-2665
COOLANT
SENDER
7N-8532
441-OR
FUEL GAGE
3E-8532
RETURN
TO DIG SW
101-0811
405-GY
307-OR
4
2
1
U
200-BK
450-YL
5
T
T
4
308-YL
NEUTRAL/
START SW
8C-5492
PARK BRAKE/
BACKUP ALARM SW
3E-7273
766-GN
K
443-YL
T
200-BK
200-BK
306-GN
309-GY
450-YL
MOTOR
T
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.
MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
START
KEY
H
H
1
3
2
6 5 4
D
8 7
9