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.
©
1992 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR5284
November 1992
D7H Series II Tractor
Electrical System
4AB4000-UP
5WB4000-UP
5BF4000-UP
2RG4000-UP
3XG4000-UP
4FG4000-UP
79Z4000-UP
80Z4000-UP
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS
C57626P1
Part No. Function Actuate Deactuate
Normal
Condition
3T5825 Power Train Oil Temperature (EMS)
129.4 ± 2.8°C
(
266 ± 5°F
)
118.3°C MIN
(
245°F MIN
)
Normally
Closed
7N9785
Engine Coolant Temperature (EMS) 107.2 ± 2.8°C
(225 ± 5°F)
91.0° MIN
(196°F MIN)
Normally
Closed
7T0998 Engine Oil Pressure (EMS)
62 ± 21 kPa
(
9.0 ± 3.0
p
si
)
38 ± 21 kPa
(
5.0 ± 3.0
p
si
)
Normally
O
p
en
8N1693
Engine Coolant Temperature (EMS) 37.8 ± 2.8°C
(
100 ± 5°F
)
26.7°C MIN
(
80°F MIN
)
Normally
Closed
8N2248
Hydraulic Oil Temperature
(Differential Steer EMS)
101.7 ± 2.8°C
(215 ± 5°F)
93.3°C MIN
(200°F MIN)
Normally
Closed
9G1300
Hydraulic Oil Temperature
(Clutch/Brake Steer EMS)
110.0 ± 2.8°C
(230 ± 5.0°)
101.7°C MIN
(215°F MIN)
Normally
Closed
9G3341 Power Train Oil Temperature (EMS)
51.7 ± 2.8°C
(
125 ± 5°F
)
43.0°C MIN
(
110°F MIN
)
Normally
Closed
9W3187 Fuel Pressure (EMS)
93 ± 21 kPa
(
13.5 ± 3.0
p
si
)
69 ± 21 kPa
(
10.0 ± 3.0
p
si
)
Normally
Closed
9X7781 Power Train Filter Pressure (EMS)
210 ± 70 kPa
(
30 ± 10
p
si
)
----
Normally
O
p
en
OFF MACHINE SWITCH SPECIFICATIONS
RESISTOR AND SOLENOID S
P
¹At room temperature
Component
Resistor - Load
Resistor - Blower Motor Speed
Resistor - Blower Motor Speed
Resistor - Starter/Diagnostic Conn
Solenoid - A/C Clutch
Solenoid - Start Aid
P
ECIFICATIONS
Part Number
Resistence
(Ohms)¹
7X6416
50 ± 5.0
2G0413
5
9G1950 Overall 2.0 ± .1
Tap 1.0 ± .05
6T2217
150 ± 7.5
8T8813
14.4 ± 0.6
9G4365 6.0
Related Service Manual
s
Alternator
(1005047):
Consist No. 1005046
Consist No. 1005045
Starting and Charging Systems
Startting Motor (4N3181):
Consist No. 8C3651 (42-MT)
Consist No. 9X4447 (F8)
Consist
No 3T6305
(KE)
Title
Electronic Monitoring System
s
Form Number
SENR2082
SENR4130
SENR2945
SENR2947
SENR3581
SENR4975
SENR3536
Component Location
Component
Schematic
Location
Vehicle
Location
Component
Schematic
Location
Vehicle
Location
Alarm - Action (EMS)
D-8
C
Sender - Hydraulic Oil Temp (CBS Gauge)
A-7
12
Alarm - Backup
E-9
1
Sender - PT Oil Temp (Gauge)
B-2
13
Alternator
B-1
2
Solenoid - A/C Clutch
B-2
2
Batteries
F-3
3
Solenoid - Start Aid
F-2
14
Breaker - Alternator (60A)
E-7
B
Switch - Backup Alarm (DS)
E-7
C¹
Breaker - Blower Motor
F-5
B
Switch - Backup Alarm (CBS)
D-7
C
Converter - Voltage
E-3
C
Switch - Blower Motor (A/C)
B-3
A
Filter - Alternator
B-5
A
Switch - Blower Motor (Heater)
C-3
6
Fuse - Front Dash & Dome (10A)
E-7
B
Switch - Disconnect
F-3
3
Fuse - Key (10A)
F-7
B
Switch - Engine Coolant Temp (EMS)
C-2
9
Fuses
E-6
B
Switch - Engine Coolant Temp (Start Aid)
D-2
9
Gauges
B-5
A
Switch - Engine Oil Pressure (EMS)
C-2
15
Ground - Module
D-4
A
Switch - Flood Lamp
B-6
A
Horns - Front
F-1
4
Switch - Forward Horn
B-5
16
Lamp - Action (EMS)
D-6
A
Switch - Front & Dash Lamp
C-6
A
Meter - Service
B-5
A
Switch - Fuel Press (EMS)
C-2
17
Monitor - Operator (EMS)
D-4
A
Switch - Hydraulic Oil Temp (DS EMS)
A-6
11
Motor - Blower (A/C)
B-3, C-3
5
Switch - Hydraulic Oil Temp (CBS EMS)
A-7
12
Motor - Blower (Heater)
B-3
6
Switch - Key Start
C-5
A
Motor - Starting
A-2
7
Switch - Neutral Start (DS)
D-7
C¹
Motor - Windshield Washer
A-8
8
Switch - Neurtral Start (CBS)
D-7
C
Motors - Wiper (Front & Left)
C-4, D-7
D
Switch - PT Filter Press (DS EMS)
A-6
11
Motors - Wiper (Rear & Right)
C-8, B-6
D
Switch - PT Filter Press (CBS EMS)
A-8
12
Radios (12V & 24V)
B-4
D¹
Switch - PT Oil Temp (DS EMS)
A-6
13
Relay - Main (Replaces Terminal Block)
F-8
B
Switch - PT Oil Temp (EMS)
C-2
11
Relay - Start
F-6
B
Switch - PT Oil Temp (CBS EMS)
C-2
12
Resistor - Blower Motor Speed (A/C)
B-3
5
Switch - Refrigerent Press
F-2
18
Resistor - Blower Motor Speed (Heater)
B-3
6
Switch - Start Aid
C-6
A
Resistor - Load
F-6
B
Switch - Test (EMS)
D-6
A
Resistor - Starter to Diagnosis Conn
B-2
7
Switch - Thermostat (A/C)
B-3
A
Sender - Engine Collant Temp (Gauge)
C-2
9
Switches - Wiper
B-7, B-8
D¹
Sender - Fuel (Gauge)
D-9
10
Terminal Block
F-6
B
Sender - Hydraulic Oil Temp (DS Gauge)
A-6
11
A/C = Air Conditioning
EMS = Electronic Monitoring System (Operator Monitor)
DS = Differential Steer Machines
CBS = Clutch/ Brake Steer Machine
PT = Power Train
Machine locations are repeated for components located close together.
A = Components in dash area.
B = Components at relay panel.
C = Components in operators left console.
C¹ = Components within diff steer control handle of operator's left console.
D = Components in operator compartment.
D¹ = Components in headliner of operators compartment.
Harness Connector Location Chart
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
A - 6Y7374 (DS)
Operator Monitor (EMS)
A - 6Y7374 (DS)
M-618611
A - 6Y7372 (CBS)
Operator Monitor (EMS)
A - 6Y7372 (CBS)
M-618611
A - 6Y7374 (DS)
Diagnostic Connector
A - 6Y7374 (DS)
C - 7T8326
A - 6Y7372 (CBS)
Diagnostic Connector
A - 6Y7372 (CBS)
C - 7T8326
A - 6Y7374 (DS)
C - 7T8326
A - 6Y7374 (DS)
G - 9U9458 Attachment
A - 6Y7372 (CBS)
C - 7T8326
A - 6Y7372 (CBS)
G - 9U9458 Attachment
D¹
G - 9U9458 Attachment
H - 9U9463 Attachment
C-7
A - 6Y7374 (DS)
N - 9W1816 Attachment
D¹
G - 9U9458 Attachment
H - 9U9463 Attachment
C-8
A - 6Y7372 (CBS)
N - 9W1816 Attachment
D¹
G - 9U9458 Attachment
Radio
B-4
A - 6Y7374 (DS)
Y - 6Y3416 Attachment
A - 6Y7374 (DS)
B - 6Y7377
A - 6Y7372 (CBS)
Y - 6Y3416 Attachment
A - 6Y7372 (CBS)
B - 6Y7377
A - 6Y7374 (DS)
B - 6Y7377
A - 6Y7372 (CBS)
B - 6Y7377
A - 6Y7374 (DS)
E - 9U9408 (DS)
A-5
A - 6Y7372 (CBS)
E - 6Y7373 (CBS)
A-5
A - 6Y7374 (DS)
Voltage Converter
A - 6Y7372 (CBS)
Voltage Converter
EMS = Electronic Monitoring System (operator monitor)
Machine locations are repeated for connectors located close together.
DS = Differential Steer Machines
* = Connector is located at the component.
CBS = Clutch/Brake Steer Machines
A = Connector in dash area.
B = Connector at relay panel.
D¹ = Connector in headliner of operators compartment.
A
A
A
A
D-6
E-3
D-5
B-55 CONTACTS
4 CONTACTS
A
C-3
D-6
D-3
E-3
*
B
A
*
E-4
F-7
2O CONTACTS
6 CONTACTS
7 CONTACTS
8 CONTACTS
9 CONTACTS
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits
101 RD Bat (+) 500 BR Wiper - Front (Park)
102 BU Hd Lmp 501 GN Wiper - Front (Low)
105 BR Key Sw 502 OR Wiper - Front (HI)
108 BU AUX CKT 503 BR Wiper - Rear (Park)
109 OR Alt Output (+) Term. 504 YL Wiper - Rear (Low)
112 PU Main Power Rly Output 505 BU Wiper - Rear (HI)
113 OR Opr Mon Panel B (+) Switched 508 PU Radio Speaker - Left
114 GN Warning Horn (Forward) 509 WH Radio Speaker - Left (Commom)
116 BR Aux Ckt 510 YL Washer - Primer
121 YL Backup Alarm to Lamp 511 BR Radio Speaker - Right
124 GN A/C 512 GN Radio Speaker - Right (Common)
129 BU Aux Ckt 513 OR A/C Compressor/Refrigerant Pressure SW
Ground Circuits 515 GY Blower Motor (HI)
200 BK Main Chassis 516 GN Blower Motor (Medium)
201 BK Operator Monitor Return 517 BU Blower Motor (Low)
203 BK Chasis Diagnosis 521 YL A/C SW To Refrigerant SW
207 BK Starter Diagnosis 522 WH A/C Clutch To Thermostat SW
Basic Machine Circuits Lighting Circuits
301 BU Starter No. 1 Sol 600 BR Dash Basic
302 OR Starter No. 1 Resistor to Diagnosis 608 GN Flood Rear
304 WH Starter Relay No.1 Output 609 YL Flood Side
306 GN Starter Relay Coil 610 OR Head Lamp Basic
307 OR Key SW to Neaut Start SW
308 YL Main Power Relay Coil
310 PU Start Aid SW To Start Aid Sol
311 WH Start Aid Sol To Temp SW
321 BR Bckp Alarm
322 GY Warning Horn (Forward)
Monitoring Circuits
403 GN Alternator (R) Term.
404 YL Opr Mon Hyd Oil Temp
405 GY Opr Mon Oil Press. (Low Setting)
406 PU Opr Mon Coolant Temp
410 WH Opr Mon Action Alarm
411 PK Opr Mon Master
413 BR Opr Mon Fuel Press.
415 GN Opr Mon Test SW
424 GY Opr Mon Power Train Temp
426 BR Opr Mon Power Train Oil Filter
441 OR Eng Coolant Temp Gauge
442 GY Hyd System Temp Gauge
443 YL Power Train Temp Gauge
447 PK Fuel Level Gauge
1
1
2
2
A
1
2
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
7
1
2
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
7
1
2
8
3
1
4
5
6
7
2
6
4
1
1
2
7
3
6
2
9
5
4
8
1
5
6
4
1
7
3
2
6
5
4
3
2
1
3
2
1
1
2
4
5
6
3
2
4
2
1
1
2
3
8
7
5
1
2
1
F
E
D
9 8 7
C
B
A
9 8 7
6 5 4
6
5
3 2 1
F
E
D
3 2 1
C
B
A
6
4
3
2
5
3
6
5
4
2
1
6
4
3
2
5
3
2
1
2
1
3
2
2
1
2
1
1
2
1
2
2
1
3
5
4
1
1
2
1
3
1
P
200-BK
200-BK
200-BK
108-BU-14RADIO
102-BU-14
102-BU-14
108-BU-14
STARTER
RELAY
3E-0075
A
114-GN
129-BU
108-BU-14
123-WH
113-OR
BK-18
207-BK
302-OR
310-PU
101-RD-6
311-WH
201-BK
203-BK
102-BU-14
112-PU-14
112-PU
308-YL
308-YL
109-OR-6
200-BK
306-GN
A
A
AA
A
A
A
AA
A A
116-BR-14
A
A
A
A
A
A
A
A
A
A
BK-18
109-OR-14
109-OR-8
15A
308-YL
112-PU-14
MM
200-BK
LL
LOAD RESISTOR
7X-6416
410-WH
CIGAR LIGHTER
BLOWER MOTOR
BREAKER
3T-8728
20A
109-OR-6
200-BK
FUSE
HOLDER
4K-5122
TERMINAL BLOCK
6T-0751
ALT
CIRCUIT
BREAKER
9S-0173
200-BK
FRONT
DASH
DOME
FUSE
3K-8782
KEY
FUSE
3K-8782
10A
10A
LL
112-PU-14
200-BK
109-OR-6
A
112-PU-14
WIPER MOTORS
200-BK-14
308-YL
306-GN
200-BK-18
610-OR-18
BR
ALTERNATOR
FILTER
100-5052
GROUND
304-WH-8
124-GN-14
BR
BK
123-WH
200-BK
GR
L8
442-GY
442-GY
HYDRAULIC
OIL TEMP
GAGE
4W-0484
NOTE F
M
M
M
123-WH-18
200-BK-18
442-GY-18
442-GY442-GY-18
442-GY
442-GY
442-GY
C
442-GY
442-GY
GRD
HYDRAULIC
OIL TEMP
SENDER
8N-3844
NOTE F
442-GY
T
SEND
IGN
S
E
442-GY
T
E E
404-YL
201-BK
426-BR
200-BK-14
129-BU-14
T
HYDRAULIC OIL
TEMP SW
9G-1300
NOTE E
E
POWERTRAIN
FILTER SW
9X-7781
NOTE B
E
E
E E
T
442-GY
426-BR
201-BK
426-BR
201-BK
M
109-OR-6
200-BK
129-BU-14
HYDRAULIC
OIL TEMP
SENDER
8N-3844
NOTE F
515-GY-14
200-BK-14
OROPS HEATER
2
200-BK-14
200-BK-14
426-BR
201-BK
404-YL
4
109-OR-4
101-RD-6
201-BK
411-PK
415-GN
200-BK-14
200-BK
403-GN
405-GY
413-BR
406-PU
441-OR
201-BK
101-RD-6
404-YL
200-BK-14
426-BR
447-PK
322-GY
201-BK
200-BK
121-YL
321-BR
201-BK
522-WH-14
608-GN-14
114-GN
521-YL-14
322-GY
311-WH
521-YL-14
310-PU
610-OR-14
403-GN
522-WH-14
311-WH
310-PU
302-OR
207-BK
203-BK
124-GN-14
308-YL
105-BR
101-RD-6
109-OR-6
304-WH-8
102-BU-14
L3
L5
24V TO 12V
CONVERTER
NOTE G
3E-8645
A513-PK
592-BU
A
GROUND
GROUND
200-BK
200-BK
+24 V SWITCHED IN
+24 V BATTERY IN
102-BU-14
108-BU-14
+12 V SWITCHED OUT
108-BU-14
102-BU-14
+12 V MEMORY OUT
G
102-BU-18
200-BK-18
200-BK-18
102-BU-18
200-BK-18 2
1
3
FUSE
(NOTE C)
BK
A
608-GN-14
RD
200-BK-14
508-PU-18
509-WH-18
102-BU-14
RIGHT
SPEAKER
6T-7695
10A
108-BU-14
109-OR-8
101-RD
200-BK
112-PU-14
116-BR-14
DIAGNOSTIC CONNECTOR
60A
RELAY PANEL
RELAY PANEL
RELAY PANEL
121-YL
105-BR
20
19
18
17
16
509-WH-18
508-PU-18
512-GN-18
511-BR-18
509-WH-18
15
14
13
9
1
200-BK
5
509-WH-18
6
508-PU-18
8
512-GN-18
12
4
304-WH
304-WH
105-BR
105-BR
101-RD-14
101-RD-14
101-RD
101-RD-6
109-OR-6
114-GN
121-YL
113-OR
123-WH
109-OR
124-GN-14
109-OR-6
306-GN
FORWARD HORN
BACK-UP ALARM
OPERATOR MONITOR
GAGES & SERVICE METER
SIDE & REAR FLOOD LAMPS15A
10A
10A
15A
10A
112-PU-14
109-OR-14
112-PU-14
112-PU-14
109-OR-14
308-YL
308-YL
112-PU
207-BK
302-OR
310-PU
311-WH
SIGNAL
BATTERY
203-BK
7
2
10
200-BK-18
11
513-OR-14
424-GY
ROOF
GROUND STUD
609-YL-14
610-OR-14
310-PU
G
522-WH-14
441-OR
RD-18
3
201-BK
608-GN-14
A
306-GN
443-YL
200-BK
200-BK-14
200-BK
200-BK-8
108-BU
112-PU-14
A
200-BK
MM
A
A
A
Z
108-BU
108-BU
24 VOLT RADIO
NOTE G
LH SPEAKER (-)
LH SPEAKER (+)
+24 VOLT
GROUND
RH SPEAKER (-)
RH SPEAKER (+)
ANTENNA
WH/BK, GN/BK-18
WH/GN-18
G
BK-18
GY/BK, PU/BK-18
GY/PU-18
G
511-BR-18
512-GN-18
200-BK-18
592-BU-18
A513-PK-18
508-PU-18
509-WH-18
509-WH-18
508-PU-18
A513-PK-18
592-BU-18
608-GN-14
200-BK-14
129-BU-14
200-BK-14
201-BK
Z
A513-PK-18
592-BU-18
200-BK-18
509-WH-18
508-PU-18
108-BU
523-BR-18
524-BU-18
525-GY-18
500-BR-18
501-GN-18
502-OR-18
108-BU
ANTENNA
9W-3072
108-BU
200-BK-18
525-GY-18
524-BU-18
523-BR-18108-BU
108-BU
108-BU
108-BU
108-BU
447-PK
200-BK-14
V 3T-1480 C-1
PK-18
BK-18
03
C-36Y-3416Y 01
00
1
3
2
200-BK-14
W 6Y-1200 B-8
BLOWER SW
1V-6652
4
200-BK-18
Y
512-GN-18
124-GN-14
Y
12 VOLT RADIO
NOTE G
200-BK-14
517-BU-14
515-GY-14
1
B-4
X
1
2
X
124-GN-14
200-BK
M
123-WH-18
447-PK-18
441-OR-18
200-BK-14
L2
OROPS HEATER
201-BK
426-BR
201-BK
426-BR
POWERTRAIN
TEMP SW
9G-3341
200-BK-18
116-BR-14
610-OR-14
SERVICE METER
3E-9358
200-BK-18
501-GN-18
500-BR-18
502-OR-18
512-GN-18
511-BR-18
508-PU-18
511-BR-18
512-GN-18
W
L2
508-PU-18
502-OR-18
200-BK
200-BK
WH
L2
200-BK-14
608-GN-14
200-BK-14
608-GN-14
608-GN-14
200-BK-14
200-BK-14
S
306-GN
200-BR-18
121-YL
L7
108-BU
500-BR-18
501-GN-18
102-BU-14
201-BK
200-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
200-BK
201-BK
447-PK
L13
426-BR
426-BR
200-BK-14
609-YL-14 609-YL-14
609-YL-14
610-OR-14
200-BK-14
200-BK-14
200-BK-14
200-BK-14
322-GY-14
200-BK-14
200-BK
D
B
D
L13
200-BK-14
517-BU-14
RESISTOR
2G-0413
515-GY-14
515-GY-14
X
1
2
X
MOTOR
BK-14
WH/RD-14
BLOWER
7X-6279
L14
517-BU-14
516-GN-14
515-GY-14
515-GY-14
FUEL
SENDER
3E-7234
441-OR
200-BK-14
200-BK-14
P
F
201-BK
201-BK
201-BK
V
B
2
1
109-OR-4
RD-00
BK-00
FF
FF
A
200-BK-8
200-BK-14
200-BK-14
509-WH-18
307-OR
306-GN
C
C
C C
L7
L8
L7
L13
C
C
C
CC
C
C
C
C
C
CC
G
EE
E
E
C
L8
M
M
M
Q
Q
Q
M
M
XX
XX
D
2
1
2
D
200-BK-14
XX
XX
R
R
L4
B
B
B
B
XX
XX
L4
200-BK-14
008E-1656 B-1/F-1
D-78E-1538 02
009W-5275 D-7
E
L
NEUTRAL START SW
9N-1750
NOTE D
321-BR
BACKUP
ALARM SW
9N-1750
NOTE D
A
UU
200-BK
321-BR
NEUTRAL START SW
9W-1581
NOTE E
UU
UU
200-BK-18
200-BK-18
200-BK-18
200-BK-18
RR
G
L
H
LEFT
SPEAKER
6T-7695
A A
403-GN
608-GN-14
200-BK-14
Z
Z
H
H
01
00
H
NOTE F: STANDARD - DIFF STEER; ATTACHMENT - CLUTCH/BRAKE STEER
04
A
H
00
00
6Y-7374
403-GN
01
00
XX
00
01
02
03
00
00
01
02
02
00
04
00
H
03
00
F-6
02
01
01
H
A-33T-2980FF
3T-7983
9U-9463
9U-9458
6I-8609
7P-6682
6T-9661
8E-3413
9P-1505
8E-1675
6Y-1201
CABLE AS.
ATCH WIRE, CABLE,
COMPONENT
B-5Q
8E-0937
CHG
MM
LL 8E-0936
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF,
AND XMSN SHIFTER IN NEUTRAL
A-2EE
F-4DD
F-4CC
F-43P-2179BB
F-4AA
E-99G-6259KK
A-23N-0539JJ
B-14D-6565
S
A-49U-8746GG
WIRE AS.
C-96Y-7375S
A-2/F-2R
C-26T-2934P
C-39W-1816N
B-46I-8611M
B-8L
B-7K
B-7H
B-7G
C-23T-8624F
A-59U-9408E
E-16Y-2510D
D-6C
D-36Y-7377B
LOC
HARNESS AS.
HH
D
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
1
2
A
P
01
H
H
L
200-BK-14
511-BR-18
200-BK-18
108-BU
306-GN
X
H
H
H
102-BU-18
NOTE C: FUSES 10A - 3K8782; 15A - 8M8948
NOTE B: NORMALLY OPEN BEFORE INSTALLATION
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
H
H H
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
HH
H
H
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
PART NO.IDENT
THIS SCHEMATIC IS FOR THE D7H TTT (3T-9317 CHG 04)
FOR A SINGLE SHEET VERSION OF THIS SCHEMATIC
CONTACT DESIGN CONTROL
MAIN RELAY
3T-0376
(REPLACES TERMINAL
BLOCK AT F-6 WHEN
LOAD CURRENT EXCEEDS
10 AMPS)
BK/PK-14
BK-14
FLOOD
LAMP
9X-6774
A
2
1
H
TO CIGAR
LIGHTER
L
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
-
+
+
-
8
7
609-YL-14
ATCH
BACKUP ALARM
SW
7T-8744
NOTE E
200-BK-14 200-BK-14
200-BK-14
RR
608-GN-14
200-BK-14
121-YL
321-BR
BASE
3T0304
A
112-PU-14
112-PU-14
308-YL
ATCH
C
LEFT
WIPER
7X-6112
ACTION
ALARM
9G-9813
BACKUP ALARM
3T-1815
200-BK
C A
A
KK
S
C
A
AG
G
A
A
592-BU-18
310-PU
308-YL
307-OR
105-BR
608-GN-14
610-OR-14
116-BR-14
102-BU-14
L5
201-BK
411-PK
415-GN
608-GN-14
609-YL-14
CIGAR LIGHTER
9W-0335
200-BK
OPERATOR MONITOR
TEST SW
7N-8001
ACTION
LAMP
7N-1996
201-BK 415-GN
201-BK
411-PK
200-BK-14
KEY
START
SW
9G-7641
START AID SW
3T-3453
OPERATOR STATION
OPERATOR STATION
102-BU-14
BK-12
E
RD
BK 2
1
201-BK
410-WH
200-BK-18
310-PU 308-YL
308-YL
307-OR
105-BR
ON
OFF
B
S
C
R
BK-12
GG
201-BK
410-WH
108-BU-14
Q
C
C
592-BU-18
A513-PK-18
A513-PK-18
2
1
108-BU-14
BK/PK
BK/PK
116-BR-14
200-BK-18
304-WH-8
109-OR-6
101-RD-6
123-WH-18
610-OR-18
610-OR-18
610-OR-18
610-OR-18
LAMP
9D-0019
123-WH-18
123-WH-18
GG
DD
CC
BB
521-YL-14
513-OR-14
322-GY
200-BK-14
610-OR-14
D
D
B
114-GN
121-YL
113-OR
123-WH
F
F
V
V
B
B
GN
GN
HH
B
AA
A
A
BLUE
GREEN
BU
RR
2
1
GN
RD
WH
OR
YL
PK
BK
200-BK
307-OR
306-GN
321-BR
410-WH
A
JJ
R
201-BK
ATCH
306-GN
321-BR
306-GN
307-OR
200-BK
307-OR
200-BK
321-BR
A
A
DIFF STEER TILLER
307-OR
ATCH
ATCH
BROWN
PURPLE
GRAY
BLACK
COLOR
105-BR
306-GN
308-YL
124-GN-14
203-BK
207-BK
302-OR
310-PU
311-WH
NOTE: FOR CLUTCH/BRAKE STEER PLUG HARNESS AS. "A" INTO
HARNESS AS. "RR" AND BACKUP ALARM SWITCH; FOR DIFF
STEER PLUG HARNESS AS. "A" INTO HARNESS AS. "UU"
200-BK
ABBREV
PINK
200-BK
200-BK
200-BK
307-OR
306-GN
321-BR
YELLOW
108-BU-14
102-BU-14
200-BK
308-YL
308-YL-14
200-BK
109-OR-4
112-PU-14
112-PU-14
8
608-GN-14
H
7
H
447-PK
A
200-BK-14
129-BU-14
447-PK
447-PK
523-BR-18
524-BU-18
525-GY-18
108-BU-18
DOME LAMP
8C-9678
GN
GY
BR
OR
4
2
3
1
H
L
OPERATOR STATION
200-BK-14
ENGINE
OIL SW
7T-0988
B
FLOOD
LAMP
9X-6774
B
200-BK-14
443-YL
513-OR-14
200-BK-14
322-GY-14
HEAD
LAMP
9X-6874
12V BATTERY
9G-4247 STD
9G-2648 ATCH
12V BATTERY
9G-4247 STD
9G-2648 ATCH
BK-18
BK-18
START AID
SOLENOID
9G-4365
B
R
609-YL-14
609-YL-14
609-YL-14
MODULE
GROUND
521-YL-14
521-YL-14
A
2
1
FRAME
03
P
00
200-BK
DISCONNECT SW
7N-0718
FRONT
HORN
7T-0969
FRONT
HORN
7T-0970
OPERATOR
MONITOR
3T-9100
200-BK
BA
DD
CC
BB
AA
D
B
A B
BA
200-BK-14
200-BK-14
200-BK-14
101-RD-6
E
E
200-BK-14
201-BK
109-OR-4
201-BK
522-WH-14
5
6
3
4
2
1
207-BK
302-OR
610-OR-14
201-BK
322-GY
405-GY
OPERATOR STATION
102-BU-14
610-OR-14
201-BK
STARTING
AID TEMP
SW
8N-1693
200-BK
310-PU
311-WH
404-YL
321-BR
121-YL
114-GN
608-GN-14
201-BK
426-BR
404-YL
447-PK
200-BK-14
201-BK
200-BK-8
123-WH
513-OR-14
413-BR
322-GY
322-GY
201-BK
RD-00
443-YL
447-PK
441-OR
G
200-BK
200-BK
441-OR
406-PU
413-BR
405-GY
403-GN
403-GN
PWR TN FLTR
426-BR
447-PK
101-RD-6
304-WH-8
109-OR-6
200-BK-8
302-OR
207-BK
304-WH-8
200-BK-8
MOTOR
522-WH-14
114-GN
121-YL
321-BR
201-BK
410-WH
123-WH
116-BR-14
200-BK-14
108-BU-14
113-OR
108-BU-14
116-BR-14
105-BR
308-YL
310-PU
307-OR
608-GN-14
BK-00
BK-00
203-BK
T
L1
513-OR-14
610-OR-14
T
L4
403-GN
441-OR
413-BR
201-BK
L1
406-PU
311-WH
311-WH
L1
L3
M
200-BK-14
1
2
311-WH
310-PU
513-OR-14
610-OR-14
322-GY
1
REFRIGERANT SW
5V-5698
NOTE A
201-BK
200-BK-14
BK
COOLANT
TEMP SW
7N9785
ORANGE
WHITE
1
2
3
610-OR-14
M
200-BK-14
N
N
N N
200-BK
T
PWR TN TEMP
113-OR
A
424-GY
415-GN
411-PK
404-YL
403-GN
413-BR
405-GY
424-GY
406-PU
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
410-WH
COOL TEMP
+ BATTERY
GROUND
ALTERNATOR
HYD TEMP
ENG OIL PR
ALARM
LAMP
FUEL PR
TEST
11
20
19
18
17
16
15
14
13
12
10
9
8
7
6
5
4
3
2
1
RD-00
NEGPOSNEGPOS
BK-00
WASHER
7T-8891
FLOOD
LAMP
9X-6774
510-YL-18
510-YL-18510-YL-18510-YL-18
RED
FLOOD
LAMP SW
3T-1730
609-YL-14
POWERTRAIN
FILTER SW
9X-7781
NOTE B
600-BR
5
4
2
1
RIGHT
WIPER
7X-1751
A513-PK
E-4
610-OR-18
00
H
HH
G G
G
E A
510-YL-14
610-OR-14
102-BU-14
102-BU-14
3
610-OR-18
00
UU
NOTE
UU
UU
200-BK-14
Z
BK-12
608-GN-14 608-GN-14
FRONT & DASH
LAMP SW
7T-3946
610-OR
116-BR-14
116-BR-14
608-GN-14
443-YL
EA-5
H
00
HYDRAULIC OIL
TEMP SW
8N-2248
NOTE D
447-PK
129-BU-14
129-BU-14
129-BU-14 129-BU-14
200-BK-14200-BK-14
129-BU-14
200-BK-14426-BR
201-BK
404-YL
GY/PU-18
GY/BK, PU/BK-18
BK-18
RD-18
YL-18
WH/GN-18
WH/BK, GN/BK-18
ANTENNA
RH SPEAKER (+)
RH SPEAKER (-)
GROUND
+12 VOLT
+12 VOLT MEMORY
LH SPEAKER (+)
LH SPEAKER (-)
592-BU
BR
610-OR-14
608-GN-14
609-YL-14
592-BU
A513-PK
200-BK-18
200-BK-18
108-BU
526-YL-18
527-GN-18
528-PK-18
528-PK-18
527-GN-18
526-YL-18
108-BU
509-WH-18
508-PU-18
REAR
WIPER
9X-3392
108-BU
505-BU-18
504-YL-18
503-BR-18
510-YL-18
108-BU
511-BR-18
512-GN-18
PU
GN
GY
BR
OR
4
2
3
1
H
L
BK-12
108-BU 108-BU
502-OR-18
501-GN-18
500-BR-18
525-GY-18
524-BU-18
523-BR-18
MOTOR
510-YL-18
108-BU
528-PK-18
527-GN-18
526-YL-18
T
108-BU-18
505-BU-18
504-YL-18
503-BR-18
108-BU
108-BU
REAR WIPER SW
3T-6655
RIGHT WIPER SW
3T-6655
LEFT WIPER SW
3T-6655
FRONT WIPER SW
3T-6655
B
W
P
L
H
B
B
W
L
H
B
B
W
P
L
H
B
B
W
P
L
H
B
526-YL-18
527-GN-18
528-PK-18
108-BU
T
NOTE G: 24 TO 12 VOLT CONVERTER NOT REQUIRED WITH
24 VOLT RADIO
RADIO OPTIONS
12 VOLT RADIOS
3E-7140 FIXED U.S.
3E-7141 REMOVEABLE U.S.
3E-6107 FIXED EUROPE
3E-6106 REMOVEABLE EUROPE
MOTOR
L
H
1
3
2
4
OR
BR
GY
GN
Z
H
OPERATOR STATION
510-YL-14
200-BK-14
608-GN-14
510-YL-18
MOTOR
H
LAMP
9D-0019
LAMP
9D-0019
LAMP
9D-0019
FLOOD
LAMP
9X-6774
BK-6
HEAD
LAMP
9X-6874
FF
STARTER
4N-3181 STD
3T-8946 ATCH
AUX START
RECEPTACLE
C
610-OR-18
610-OR-18
610-OR-18
C Q
3
DIFF STEER
R
609-YL-14609-YL-14
GN
GY
BR
OR
OPERATOR
MONITOR
PANEL
MOUNTING
BOLT
426-BR
521-YL-14
200-BK-14
IGN
SEND
GRD
IGN
SEND
GRD
IGN
SEND
GRD
515-GY-14
516-GN-14
200-BK-14
RESISTOR
9G-1950
THERMOSTAT
SW
3E-5465
124-GN-14
521-YL-14
T
BLOWER SW
6P-3236
A
6Y-7373E
H
ATCH
ATCHE
D
E-4006Y-7372A
4
200-BK-14
424-GY
R
RD-00
BK-00
POWERTRAIN
OIL TEMP
SENDER
8N-3844
2
1
COOLANT
TEMP GAGE
4W-0483
POWERTRAIN OIL
TEMP GAGE
4W-0485
600-BR 600-BR
1
2
FUEL
LEVEL GAGE
9X-3496
FRONT
WIPER
9X-3392
RESISTOR
6T-2217
POWERTRAIN OIL
TEMP SW
3T-5825
ALTERNATOR
100-5047
502-OR-18
108-BU
500-BR-18
501-GN-18
BASE
7G-9730
BASE
7G-9730
FUEL
PRESS SW
9W-3187
7X-2041
N
N
JJEE
G
FN
M
A
A A
F-6
HH
A
4
OROPS HEATER
3
522-WH-14
4
201-BK
2
1
1
3
2
322-GY
114-GN
403-GN
OPERATOR STATION
200-BK200-BK
POWERTRAIN
OIL TEMP SW
9G-3341
NOTE E
426-BR
201-BK
2
PANEL LAMP
7N-9967
PANEL LAMP
7N-9967
600-BR
NOTE E: FOR CLUTCH/BRAKE STEER ONLY
RR
403-GN
NOTE D: FOR DIFF STEER ONLY
200-BK
511-BR-18
GR
BK
T
201-BK
424-GY
609-YL-14
3
1
H
T
443-YL
424-GY
201-BK
T
L
MOTOR
T
5
200-BK-14
124-GN-14
2
3
1
BLOWER
9G-8697
2
RED
BLK
BLU
GRN
OR
517-BU-14
200-BK-14
BLOWER
9G-8693
2
2
1
1WH/RD-14 WH/RD-14
BK-14BK-14
MOTOR
MOTOR
FORWARD HORN SW
3T-2357
304-WH-8
301-BU
304-WH-8
302-OR
207-BK
200-BK-8
FRAME
ENG
BLK
322-GY
114-GN
201-BK
426-BR
404-YL
121-YL
321-BR
608-GN-14
200-BK-14
AIR
CONDITIONER
CLUTCH
SOLENOID
8T-8813
UU
BK-6
207-BK
BK-00
RD-00
G S
MTR BAT
MOTOR
123-WH-18
200-BK-18
123-WH-18
CLUTCH/BRAKE STEER
COOLANT
TEMP SENDER
6N-5926
406-PU
T
443-YL-18
441-OR-18
447-PK-18
123-WH-18
123-WH
200-BK-18
447-PK
441-OR
443-YL
L4
7T-8326
GY
ATCH
A-9/F-900
BK
Z
200-BK-18
200-BK-18
200-BK-18
123-WH-18
8E-1684
OPERATOR STATION
RD-00
413-BR
610-OR-14
ALT
+
R
24 VOLT RADIOS
9X-6779 FIXED U.S.
9X-6778 REMOVEABLE U.S.
3E-7890 FIXED EUROPE
9X-5288 REMOVEABLE EUROPE
B
102-BU-14
105-BR
308-YL
124-GN-14
310-PU
311-WH
1
M
T
ST
W
G
1
2
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.
EMS CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT
GROUND CIRCUIT
START AID CIRCUIT
ALL DASHED LINES ARE ATTACHMENTS
4
2
