SENR3417 June 1986
A - COMPONENTS INSIDE THE CAB B - COMPONENTS ON THE RELAY PANEL
3
5
15 1 4
23 14
21
10
12 4 5 8 7 2
10
27 7
17 18 20 19
26
11
12
13
11
25 9
13
16 2 9 24
3
6
22 8
1
Component Location Chart
Machine Location
Component
Schematic Location E-9
Machine Location
Schematic Location
13
Starter
E-2
D-8
14
Switch-Backup Alarm
E-7 E-6
Component
1
Alarm-Backup
A
Alarm-Fault (EMS)
2
Alternator
A-1
A
Switch-Blower Speed (A/C)
3
Batteries
F-5,6
15
Switch-Disconnect
F-5
B
Breaker -Alternator
E-8
A
Switch-Dome Lamp
A-7 C-5
B
Breaker-Blower Motor
F-7
A
Switch-EMS Test
A
EMS Panel (Operator Monitor)
C-6
16
Switch-Engine Coolant Flow (EMS)
B-2
A
Gauge-Engine Coolant Temperature
A-5
17
Switch-Engine Coolant Temperature (EMS)
B-1
A
Gauge-Hydraulic Oil Temperature
B-5
18
Switch-Engine Coolant Temperature (S.Aid)
B-2
A
Gauge-Power Train Oil Temperature
B-5
19
Switch-Engine Oil Pressure (EMS)
B-2
4
Horns-Forward
E-1
20
Switch-Engine Oil Pressure (Service Meter)
B-2
A
Meter-Service
A-5
A
Switch-Flood Lamp
C-5 A-7
C
Motor-Blower
D-4
A
Switch-Forward Horn
C
Motor-Blower
D-3
21
Switch-Fuel Pressure (EMS)
B-2
5
Motor-Washer
A-8
22
Switch-Hydraulic Oil Temperature (EMS)
A-7
A
Motor-Wiper (Front)
B-4
A
Switch-Key Start
D-5
A
Motor-Wiper (Left)
F-5
23
Switch-Neutral/Start
D-7
A
Motor-Wiper (Rear)
D-8
24
Switch-Power Train Filter (Diff. Press.)
A-8
A
Motor-Wiper (Right)
A-6
25
Switch-Power Train Oil Temperature (EMS)
A-3
B
Relay-Main Power
F-9
26
Switch-Power Train Oil Temperature (Filter)
A-3
B
Relay-Start
F-7
27
Switch-Refrigerant Pressure (A/C)
A-2
C
Resistor-Blower Motor Speed
C-4
A
Switch-Ripper Pin Puller
A-8
6
Resistor-Starter to Diagnostic Connector
E-1
A
Switch-Running Lamp
B-5
7
Sender-Engine Coolant Temperature
A-1
A
Switch-Start Aid
D-5
8
Sender-Hydraulic Oil Temperature
A-7
A
Switch- Thermostat (A/C)
E-6
9
Sender-Power Train Oil Temperature
A-3
A
Switch-Wiper (Front)
B-7
10
Solenoid-Air Conditioner Clutch
A-2
A
Switch-Wiper (Left)
B-7
11
Solenoid-Ripper Pin Puller
B-9
A
Switch-Wiper (Rear)
B-8
12
Solenoid-Start Aid
B-1
A
D8N Tractor Electrical System 9TC1-UP
B-8
Switch-Wiper (Right)
C16398X1
Printed in U.S.A.
© 1986 Caterpillar All Rights Reserved
6
3
Connectors 20 CONTACTS
Machine Location
1 2
1
3
9 CONTACTS
4
8 CONTACTS
4 8 12 11
5 6
Harness And/Or Components A-7T8315 Diagnostic Connector
Schematic Location
Connectors
Machine Location
E-4
7 CONTACTS
7
A-7T8315 Operator Monitor (EMS) MM-7T9222 NN-7T9218
C-6
8
B-7
9
A-7T8315 B-7T8326 A-7T8315 C-7T8327 MM-7T9222 NN-7T9218
E-4
10
CONTACTS C-2
11
B-8
12 13
2
9 24
5
10 CONTACTS
HARNESS CONNECTOR LOCATION CHART
Harness And/or Components
Schematic Location
A-7T8315 C-7T8327 A-7T8315 B-7T8326 A-7T8315 E-9W2535 A-7T8315 F-9W2536 A-7T8315 M-3T7147 A-7T8315 N-9W1816 A-7T8315 Ripper Pin Puller Solenoid
C-2 C-5 A-7 B-3 A-4 D-4 B-9
3 22 8 1
13
23
15
10
27
11
21 14
5 7
4
17 18
7
Part No. 3T5825
10 26 25 9
19 20
16
2
6T4949
Function
Off Machine Switch Specification
Power Train Oil Temp. (EMS) Engine Oil Pressure (EMS) Engine Oil Pressure (S.Meter)
6 13
12
6T9316
Engine Coolant Flow (EMS)
Contact Position
129.4 ± 2.8°C
118.3°C MIN
N.C.
(265 ± 5°F)
(245°F MIN)
93 ± 21 kPa
69 ± 21 kPa
(13.5 ± 3.0 psi)
(10.0± 3.0 psi)
37 ± 3g
31 g MIN
(1.3 ± 0.1 oz)
(1.1 oz MIN)
Engine Coolant Temp. (EMS)
107.2 ± 2.8°C
91.0°C MIN
(225 ± 5°F)
(196°F MIN)
8N2248
Hydraulic Oil Temperature (EMS)
101.7 ± 2.8°C
93.3°C MIN
(215 ± 5°F)
(200°F MIN)
9W3187
Power Train Oil Temp. (Filter) (EMS) Fuel Pressure (EMS)
N.O. = NORMALLY OPEN
Harness Connector And Component Locations
Deactuate
7N9785
9G3341
C16399X1
Actuate
N.C. = NORMALLY CLOSED
51.7 ± 2.8°C
43.0°C MIN
(125 ± 5°F)
(110°F MIN)
93 ± 21 kPa
69 ± 21 kPa
(13.5 ± 3.0 psi)
(10.0 ± 3.0 psi)
N.O. N.O. N.C. N.C. N.C. N.C. reasing pressure the closed
Wire Number
Wire Color
101 102 103 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
RD BU YL BR WH WH BU OR GN YL PU OR GN PK BR YL GY PK YL YL BU WH
124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 141 146 147 148 153 154 172 174 175 176 176 177 178
GN OR PK OR PK BU GN BR PK OR PK BU GN RD GN PK GY PU WH WH WH GN PK PK YL OR OR GN
200 201 202 203 204 205 206 207 209 212 213 214 215 216 217 218 219 220 221 222 223 224 226 227 228 231 236 241 242 243 244 250 251 252
BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK
301 302
BU OR
304 306 307 308 310 311 312 313
WH GN OR YL PU WH PK GY
314 320 321 322 323 324 325 326 327 328
PU OR BR GY YL BU PK PU PK OR
Wire Description Description Power Circuits
BATTERY HEAD LAMP DOME/DASH LAMP/PARK, TAIL LAMP KEY SWITCH MAIN POWER RELAY/INPUT ENGINE SHUT DOWN MISC WIPER, DOME LAMP, CIGAR LIGHTER ALTERNATOR WINDSHIELD WIPER SW (RIGHT) WINDSHIELD WIPER SW (LEFT) MAIN POWER RELAY/OUTPUT OPERATOR MONITOR PANEL WARNING HORN (FORWARD) FLOOD LAMP (FRONT) FLOOD LAMP (REAR) FLOOD LAMP (SIDE) WINDSHIELD WIPER SW (FRONT) WINDSHIELD WIPER SW (REAR) CONVERTER (24 V to 12 V) BACKUP ALARM/LAMP/TRAVEL ALARM TIMER AIR DRYER GAUGES (SERVICEMETER, TORQUE CONV SOLENOID) AIR CONDITIONER FUEL TRANSFER PUMP TRANSMISSION CONTROL CAB FLOOD LAMP KICKOUT SOLENOID SW CIGAR LIGHTER STOP LAMP FIRE CONTROL-OPERATOR WARNING ANTISPIN CONTROL PROGRAMMED ELECTRONIC ENG CONT SOLENOID PROGRAMMED ELECTRONIC ENG CONT LOGIC AM/FM RADIO SUPPLEMENTAL STEERING STEERINGMOTOR INDICATOR AUTOMATIC LUBE PUMP (TRUCK) AUXILIARY HEATER ACCESSORY SWITCH 1 ACCESSORY SWITCH 2 A/C SWITCH 3 PT HITCH CONTROL AIR CONDITIONER HAZARD FUSE TO FLASHER CUSTOMER ADD-ONS TRAILER TURN/HAZARD CUSTOMER ADD-ONS CRANKCASE GUARD - PUMP MOTOR MAIN BREAKER MAIN BREAKER GROUND CIRCUITS MAIN CHASSIS OPERATOR MONITOR PANEL TRANSMISSION CONTROL CHASSIS DIAGNOSTIC OPERATOR MONITOR PANEL (SCRAPER) INSTRUMENT BATTERY SIDE OF DISCONNECT STARTER DIAGNOSITC FIRE SUPPRESSION SYSTEM ANTISPIN CODING PIN 16 ANTISPIN CODING PIN 17 ANTISPIN CODING PIN 18 ANTISPIN CODING PIN 19 ANTISPIN CODING PIN 20 TRANSMISSION CODING PIN 17 TRANSMISSION CODING PIN 18 TRANSMISSION CODING PIN 19 ENGINE OIL PRESSURE SENSOR ENGINE COOLANT TEMP SENSOR MONITOR PANEL CODING 1 MONITOR PANEL CODING 2 ENGLISH/METRIC CODING OPERATOR MON PANEL SET POINT SELECT TRANSMISSION CODING PIN 37 FUEL LEVEL SENDER TRANSMISSION SWITCH TRANSMISSION CODING PIN 36 OPERATOR MON PANEL TIME DELAY PIN 3 OPERATOR MON PANEL TIME DELAY PIN 4 OPERATOR MON PANEL TIME DELAY PIN 5 OPERATOR MON PANEL TIME DELAY PIN 6 PAYLOAD MONITOR CUSTOMER GROUND PAYLOAD MONITOR SYSTEM GROUND PAYLOAD MONITOR GROUND INTERCONNECT MACHINE BASIC CIRCUITS STARTER NO 1 SOLENOID TO RESISTOR STARTER NO 1 TO DIAGNOSTIC/RESISTOR TO DIAGNOSTIC STARTER RELAY NO 1 OUTPUT STARTER RELAY COIL/NEUTRAL START SW KEY SW TO NEUTRAL START SW MAIN POWER RELAY COIL ETHER SW, TO ETHER SOLENOID ETHER SOLENOID TO TEMPERATURE SW STARTER NO 2 SOLENOID TO RESISTOR STARTER NO 2 TO DIAGNOSTIC/RESISTOR TO DIAGNOSTIC STARTER RELAY NO 2 OUTPUT HORN RELAY COIL TO SWITCH BACKUP ALARM/LAMP WARNING HORN (FORWARD) FUEL TRANSFER PUMP POWER DIFFERENTIAL LOCKUP SOLENOID FUEL PUMP RELAY OIL PRESS SW KEY SWITCH "C" TERMINAL SHUTDOWN SOLENOID SHUTDOWN MODULE "OFF"
Wire Number
Wire Color
400 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420
GN GN YL GY PU PK WH OR WH PK BU BR PK GN OR GY YL YL OR
421 422 423 424 425 426 427
BU YL GY GY PK BR GN
428 429 431
OR YL GN
432 433 434 435 436
PK BU BU YL OR
437
BR
438 440 441 442 443 444 445 446 447 449 450 451 452 453 454 455 456 457 458 459 460 463 464 466 469 470
YL BR OR GY YL BU GN PU PK BU YL BR PU PK GN YL BR PU PK PK BU YL GY WH GN PU
500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542
BR GN OR BR YL BU PU WH PU WH YL BR GN OR PU GY GN BU OR PK WH YL WH BR BU GY YL GN PK WH OR WH WH OR WH BU OR GR BR BU WH GN BU
Description Accessory Circuits (Continued)
SERVICEMETER SWITCH ALTERNATOR (R) TERMINAL OPERATOR MON PANEL HYDRAULIC OIL TEMP OPERATOR MON PANEL OIL PRESS OPERATOR MON PANEL COOLANT TEMP OPERATOR MON PANEL CONV/RETARDER OIL TEMP OPERATOR MON PANEL BRAKE PRESS (AIR) OPERATOR MON PANEL NEUTRAL OPERATOR MON PANEL FAULT ALARM OPERATOR MON PANEL MASTER FAULT LAMP OPERATOR MON PANEL COOLANT FLOW OPERATOR MON PANEL FUEL PRESS OPERATOR MON PANEL LOW FUEL OPERATOR MON PANEL TEST SW SECONDARY STEERING SW, PRIMARY STEERING SW OPERATOR MON PANEL OIL PRESS (HIGH SETTING) OPERATOR MON PANEL PARKING BRAKE OPERATOR MON PANEL FUEL FILTER/LOW ACCUM PRESS OPERATOR MON PANEL FAULT LAMP (SCRAPER) OPERATOR MON WARNING HORN (SCRAPER) OPERATOR MON PANEL TEST SW (SCRAPER) OPERATOR MON PANEL POWER TRAIN TEMP OPERATOR MON PANEL POWER TRAIN OIL LEVEL OPERATOR MON PANEL POWER TRAIN OIL FILTER OPERATOR MON PANEL POWER TRAIN OIL FILTER JUMPER OPERATOR MON PANEL TRANSMISSION OIL TEMP OPERATOR MON PANEL BRAKE OIL TEMP OPERATOR MON PANEL LOW TRANSFER PUMP PRESS OPERATOR MON PANEL BRAKE PRESS (OIL) OPERATOR MON PANEL BRAKE PRESS (OIL ) JUMPER
OPERATOR MON PANEL POWER TRAIN TEMP JUMPER OPERATOR MON PANEL POWER TRAIN TEMP JUMPER
OPERATOR MON PANEL POWER TRAIN OIL FILTER JUMPER OPERATOR MON PANEL FUEL LEVEL TO FUEL FILTER JUMPER OPERATOR MON PANEL COOLANT TEMP JUMPER AIR PRESS GAUGE ENGINE COOLANT TEMP GAUGE HYDRAULIC SYSTEM TEMP GAUGE POWER TRAIN TEMP GAUGE CONV/RETARDER OIL TEMP GAUGE (TRACTOR) CONV/RETARDER OIL TEMP GAUGE (SCRAPER) BRAKE OIL TEMPERATURE GAUGE FUEL LEVEL GAUGE SPEEDOMETER SENDER (SIGNAL) TACHOMETER SENDER (+) TACHOMETER SENDER (-) TORQUE CONVERTER SECONDARY STEERING FAULT LAMP RETARDER INDICATOR LAMP CONVERTER TEMP SW TO TIME DELAY MONITOR PANEL PTO MONITOR PANEL GROUND SPEED SENDER MONITOR PANEL +V MONITOR PANEL IMPLEMENT POSITION MONITOR PANEL PROGRAM PIN SENSOR PRESENT MONITOR PANEL ENGINE OIL PRESSURE SENSOR MONITOR PANEL STEERING OIL TEMPERATURE FUEL LEVEL SENDER +V CANE SW NEUTRAL ACCESSORY CIRCUITS WINDSHIELD WIPER - FRONT (PARK) WINDSHIELD WIPER - FRONT (LOW) WINDSHIELD WIPER - FRONT (HIGH) WINDSHIELD WIPER - REAR (PARK) WINDSHIELD WIPER - REAR (LOW) WINDSHIELD WIPER - REAR (HIGH) WINDSHIELD WASHER FRONT WINDSHIELD WASHER REAR RADIO SPEAKER - LEFT RADIO SPEAKER - LEFT (COMMON) WINDSHIELD WASHER - PRIMER RADIO SPEAKER - RIGHT RADIO SPEAKER - RIGHT (COMMON) AIR CONDITIONER COMPRESSOR AIR CONDITIONER CONDENSOR MOTOR BLOWER MOTOR (HIGH) BLOWER MOTOR (MEDIUM) BLOWER MOTOR (LOW) HAZARD FLASHER TO SWITCH THERMOSTAT TO DRYER PRESS SW OPERATOR AIR CONDITIONER SW TO THERMOSTAT AIR COND SW TO RFGT SW AIR COND COMPR TO THERMO SW WINDSHIELD WIPER - LEFT (PARK) WINDSHIELD WIPER - LEFT (LOW) WINDSHIELD WIPER - LEFT (HIGH) WINDSHIELD WIPER - RIGHT (PARK) WINDSHIELD WIPER - RIGHT (LOW) WINDSHIELD WIPER - RIGHT (HIGH) WINDSHIELD WASHER - LEFT WINDSHIELD WASHER - RIGHT FIRE WARNING HORN FIRE WARNING LAMP HEAT SENSOR/TEST SW HEAT SENSOR/TEST SW TRAVEL ALARM TIMER PRESS SW TRAVEL ALARM TIMER MANUAL OVERRIDE TURN SIGNAL SW TO FLASHER HAZARD INDICATOR TURN SIGNAL INDICATOR BASIC/RIGHT TURN SIGNAL INDICATOR LEFT ACCESSORY 1 ACCESSORY 2
Wire Number
Wire Color
553 554 557 558 567 569 579 580
YL PK YL GN WH PK BR OR
600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 622 623 624 625 630 635 635 636
BR GY WH PK OR YL GY PK GN YL OR PU GY PK PU YL BU BR YL GR WH PU BU YL BK GY BR BU GN
700 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 720 721 722 723 724 725 726 727 728 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 756 761 762 763 764
PK OR BU GY PK BR PU YL OR GN BR WH OR YL GN BU PU BR WH OR YL GN BU GN BU BR WH OR YL GN BR WH OR YL GN PU BU GY PK WH WH GY YL BU PU
765 767 768 769 770 771 772 773 774 775 779 780 794 799 803 805 807 808 809 810 811 812 813
OR WH OR BU GN PU BR GY YL BR WH PU YL WH BU PK BR PU GN BU GY GN PK
Wire Description Description Power Circuits
PITCH SOLENOID TO TRIGGER SW - DUAL TILT MOMENTARY SW TO SINGLE TILT SOL - DUAL TILT TRAILER CONNECTOR (LEFT TURN/HAZARD) TRAILER CONNECTOR (RIGHT TURN/HAZARD) A/C SWITCH JUMPER A/C SWITCH JUMPER A/C BLOWER MOTOR #1 A/C BLOWER MOTOR #2 LIGHTING CIRCUITS DASH BASIC DASH HIGH DOME ROTARY BEACON STOP TURN LEFT TURN RIGHT FLOOD FRONT FLOOD REAR FLOOD SIDE HEAD LAMP BASIC HEAD LAMP HIGH BACKUP LICENSE PLATE PARK/T AIL/DASH CAB FLOOD/ROPS BUCKET FLOOD TAIL/POSITION LAMP - LEFT (ROADING PACKAGE) TAIL/POSITION LAMP - RIGHT (ROADING PACKAGE) HEAD LAMP LOW FLOOD - FRONT (ATTACH) (ENGINE FLOOD LAMP) FLOOD LAMP 3 WAY SW JUMPER FLOODLAMP 3 WAY SW JUMPER FLOODLAMP BOWL COURTESY LAMP FLOOD REAR (ATTACH) TURN SIGNAL COMMON PAYLOAD MONITOR RED LIGHT PAYLOAD MONITOR AMBER LIGHT CONTROL CIRCUITS ANTISPIN TEST SW TRANSMISSION BRAKE SW JUMPER TRANSMISSION UP SOLENOID TRANSMISSION DOWN SOLENOID TRANSMISSION LOCKUP CLUTCH SOL BASIC TRANSMISSION RETARDER SW TRANSMISSION BED RAISE SW TRANSMISSION HOLD SW TRANSMISSION PICKUP POWER TRANSMISSION SPEED PICKUP SIGNAL TRANSMISSION LEVER CODE 1 TRANSMISSION LEVER CODE 2 TRANSMISSION LEVER CODE 3 TRANSMISSION LEVER CODE 4 TRANSMISSION LEVER CODE 5 TRANSMISSION LEVER CODE 6 TRANSMISSION BRAKE SW TRANSMISSION GEAR CODE 1 TRANSMISSION GEAR CODE 2 TRANSMISSION GEAR CODE 3 TRANSMISSION GEAR CODE 4 TRANSMISSION GEAR CODE 5 TRANSMISSION GEAR CODE 6 STEERING MOTOR RELAY SUPPLEMENTAL STEERING CONTROL SW SWITCHING GEAR CODE 1 FRONT SWITCHING GEAR CODE 2 FRONT SWITCHING GEAR CODE 3 FRONT SWITCHING GEAR CODE 4 FRONT SWITCHING GEAR CODE 5 FRONT SWITCHING GEAR CODE 1 REAR SWITCHING GEAR CODE 2 REAR SWITCHING GEAR CODE 3 REAR SWITCHING GEAR CODE 4 REAR SWITCHING GEAR CODE 5 REAR SWITCHING NEUTRAL/RUN SW SWITCHING UP SOLENOID SWITCHING DOWN SOLENOID SWITCHING SYNCHRONIZE SOLENOID SWITCHING NO SYNCHRONIZE SOLENOID TRANSMISSION LOCKUP CLUTCH SOLENOID LIFT KICKOUT SOLENOID SW BUCKET POSITIONER SOLENOID SW TORQUE CONVERTER SOLENOID SUPPLEMENTAL STEERING CONTROL SW (MOTOR GRADER) APRON SOLENOID (SCRAPER) ANTISPIN PICKUP POWER ANTISPIN PICKUP TRANSMISSION ANTISPIN PICKUP LEFT ANTISPIN PICKUP RIGHT ANTISPIN SERVICE BRAKE SW ANTISPIN RETARDER SW ANTISPIN SERVOVALVE ANTISPIN SOLENOID - LEFT ANTISPIN SOLENOID - RIGHT COUPLER DISENGAGE SOLENOID COUPLER ENGAGE SOLENOID PAYLOAD MONITOR TRANSMSSION PICKUP PAYLOAD MONITOR SENSOR POWER AUTO FIRE SYSTEM SW POWER AUTO FIRE BRAKE SW AUTO FIRE NITROGEN SW AUTO FIRE NITROGEN SW AUTO FIRE SYSTEM WARNING CKT AUTO FIRE SYSTEM FAILURE CKT FIRE TEST CKT FIRE NITROGEN ACTUATION SOL AGENT CYLINDER SW. (2)
Wire Number
Wire Color
816 818 819 820 858 859 860 861 863 864 865 866 867 870 871 872 888 889 890
BR BR GY BU GY YL PK PU BU BR GY PK PU OR BU YL PK GY PU
Description Accessory Circuits (Continued)
AUTO FIRE ALARM PAYLOAO MONITOR SERIAL DATA (TX) PAYLOAD MONITOR SERIAL DATA (RX) PAYLOAD MONITOR TRANSMIT KEY PAYLOAD MONITOR RF SIGNAL PAYLOAD MONITOR LF SIGNAL PAYLOAD MONITOR RR SIGNAL PAYLOAD MONITOR L.R SIGNAL PAYLOAD MONITOR TRANS LCD OUT PAYLOAD MONITOR CLOCK LCD OUT PAYLOAD MONITOR LATCH LCD OUT PAYLOAD MONITOR TEST/SET PAYLOAD MONITOR CALIBRATE 3 POINT HITCH CONTROL 3 POINT HITCH CONTROL 3 POINT HITCH CONTROL 3 POINT HITCH CONTROL 3 POINT HITCH CONTROL 3 POINT HITCH CONTROL