428 & 438 BACKHOE LOADERS

SENR3924
January 1988
428 & 438 Backhoe Loaders
Electrical System
6TC1-7999
3DJ1-999
©
1988 Caterpillar
All Rights Reserved
Printed in U.S.A.
Circuit
Number
Color Description
Circuit
Number
Color Description
POWER DISTRIBUTION CIRCUITS
GROUND CIRCUITS (CONT.)
101
RD
BATTERY
214
BK
ANTISPIN CODING PIN 18
102
HEAD LAMP
215
BK
ANTISPIN CODING PIN 19
103
YL
DOME/DASH LAMP/PARK, TAIL LAMP
216
BK
ANTISPIN CODING PIN 20
104
YL
TORQUE CONVERTER SWITCH
217
BK
TRANSMISSION CODING PIN 17
105
KEY SWITCH
218
BK
TRANSMISSION CODING PIN 18
106
WH
MAIN POWER RELAY/INPUT
219
BK
TRANSMISSION CODING PIN 19
107
WH
ENGINE SHUT DOWN/AUTO FIRE CONTROL
220
BK
ENGINE OIL PRESSURE SENSOR
108
MISC WIPER, DOME LAMP, CIGAR LIGHTER
221
BK
ENGINE COOLANT TEMP SENSOR
109
OR
ALTERNATOR
222
BK
MONITOR PANEL CODING 1
110
GN
WINDSHIELD WIPER SW. (RIGHT)
223
BK
MONITOR PANEL CODING 2
111
YL
WINDSHIELD WIPER SW. (LEFT)
224
BK
ENGLISH/METRIC CODING
112
MAIN POWER RELAY/OUTPUT
226
BK
HYD OIL TEMP SENSOR
113
OR
OPERATOR MONITOR PANEL
227
BK
TRANSMISSION CODING PIN 37
114
GN
WARNING HORN (FORWARD)
228
BK
FUEL LEVEL SENDER
115
PK
FLOOD LAMP (FRONT)
230
BK
TMC ACTUATOR GROUND
116
FLOOD LAMP (REAR)-(SIDE ON D8,D9,D1 O,D11)
231
BK
TRANSMISSION SWITCH
117
YL
FLOOD LAMP (SIDE)
232
BK
ENGINE SPEED CONTROL SOLENOID GROUND
118
GY
WINDSHIELD WIPER SW. (FRONT)
233
BK
ENGINE UNDERSPEED CONTROL-PROPORTIONAL SOL
119
PK
WINDSHIELD WIPER SW. (REAR)
234
BK
ENGINE SPEED CONTROL SOLENOID GROUND
120
YL
CONVERTER (24 V to 12 V)
236
BK
TRANSMISSION CODING PIN 36
121
YL
BACKUP ALARM/LAMP
240
BK
ENGINE SPEED CONTROL
122
AIR DRYER
241
BK
OPERATOR MON PANEL TIME DELAY PIN 3
123
WH
GAUGES (SERVICE METER, TORQUE CONV SOLENOID)
242
BK
OPERATOR MON PANEL TIME DELAY PIN 4
124
GN
AIR CONDITIONER
243
BK
OPERATOR MON PANEL TIME DELAY PIN 5
125
OR
FUEL TRANSFER PUMP
244
BK
OPERATOR MON PANEL TIME DELAY PIN 6
126
PK
TRANSMISSION CONTROL
250
BK
PAYLOAD MONITOR-CUSTOMER GROUND
127
OR
CAB FLOOD LAMP
251
BK
PAYLOAD MONITOR-SYSTEM GROUND
128
PK
KICKOUT SOLENOID SW.
252
BK
PAYLOAD MONITOR-DISPLAY TO CONTROL
129
CIGAR LIGHTER
256
BK
LUC HARNESS CODE 0
130
GN
STOP LAMP AUX FLOODS
257
BK
LUC HARNESS CODE 1
131
FIRE CONTROL-OPERATOR WARNING
258
BK
LUC HARNESS CODE 2
132
PK
ANTISPIN CONTROL
259
BK
LUC HARNESS CODE 3
133
OR
MAIN POWER RELAY DIAG RES TO DIAGNOSTIC
260
BK
TECH ID CODE 0
134
PK
PROGRAMMED ELECTRONIC ENG CONT LOGIC
261
BK
TECH ID CODE 1
135
AM/FM RADIO
262
BK
TECH ID CODE 2
136
GN
SUPPLEMENTAL STEERING
263
BK
TECH ID CODE 3
137
OR
STEERING MOTOR FUSE-SMALL TRUCKS
MACHINE BASIC CIRCUITS
138
GN
AUTOMATIC LUBE PUMP/PAYLOAD MONITOR
301
STARTER NO.1 SOLENOID TO RESISTOR
139
OR
BRAKE RELEASE RELAY
302
OR
STARTER NO.1 RESISTOR TO DIAGNOSTIC
140
BRAKE RELEASE SWITCH
304
WH
STARTER RELAY NO.1 OUTPUT
141
PK
AUXILIARY HEATER/DEFROSTER (FRONT)
305
KEY SWITCH TO ALARM HORN
142
FAST DUMP SOLENOID
306
GN
STARTER RELAY COIL/NEUTRAL START SW. OR KEY SW.
143
BK
TRANSMISSION DISCONNECT SWITCH
307
OR
KEY SW. TO NEUTRAL START SW.
144
GN
FOG LAMP/BEACON
308
YL
MAIN POWER RELAY COIL
145
DUAL HP SOLENOID SWITCH
309
GY
ALTERNATOR REGULATOR TERM
146
GY
ACCESSORY SWITCH 1
310
ETHER SW. TO ETHER SOLENOID
147
ACCESSORY SWITCH 2
311
WH
ETHER SOLENOID TO TEMPERATURE SW.
148
WH
A/C SWITCH
312
PK
STARTER NO.2 SOLENOID TO RESISTOR
149
FLOODLAMP (FRONT ATTACHMENT)
313
GY
STARTER NO.2 RESISTOR TO DIAGNOSTIC
150
OR
FLOODLAMP (REAR ATTACHMENT)
314
STARTER RELAY NO.2 OUTPUT
151
GN
DEFROSTER
315
GN
START AID BREAKER TO START AID RELAY
152
AUX. WIPER SWITCH
316
PK
CANE TO ELEVATOR NEUTRAL START SW. JUMPER
153
WH
3 PT. HITCH CONTROL
317
YL
START AID RELAY TO START AID SOLENOID
154
WH
AIR CONDITIONER
320
OR
HORN RELAY COIL TO SWITCH
156
YL
CB RADIO
321
BACKUP ALARM/LAMP/TRAVEL ALARM
157
YL
TURN FUSE TO HAZARD SWITCH
322
GY
WARNING HORN (FORWARD)
158
B+ TO CONDENSER RELAY CONTACT
323
WH
FUEL TRANSFER PUMP POWER
159
WIPER MOTOR-RIGHT
324
DIFFERENTIAL LOCKUP SOLENOID
160
WIPER MOTOR-LEFT
325
PK
FUEL PUMP RELAY OIL PRESSURE SW.
161
PK
HAZARD FUSE TO HAZARD SWITCH
326
KEY SWITCH "C" TERMINAL
162
YL
AUXILIARY HYDRAULIC LEFT
327
PK
SHUTDOWN SOLENOID
163
WH
AUXILIARY HYDRAULIC RIGHT/SWING
328
OR
SHUTDOWN MODULE "OFF"
165
YL
DIFFERENTIAL LOCK/APRON SOLENOID
329
YL
FUEL PUMP TO SWITCH
167
OR
LOCKUP CLUTCH
330
YL
NEUTRAL START RELAY COIL
168
GN
REFUELING PUMP
331
OR
BACK-UP ALARM RELAY COIL
169
PK
BLADE CUSHION
332
SHUTDOWN SWITCH TO SHUTDOWN CONTROL
170
YL
BLADE FLOAT
333
GN
SCRAPER KEY SW. "R" TERMINAL
171
GN
DOZER FLOAT
MONITORING CIRCUITS
172
GN
HAZARD FUSE TO FLASHER
400
GN
SERVICE METER SWITCH
173
YL
TURN FUSE TO FLASHER
401
HYD OIL TEMP GAUGE SENSOR B+
174
PK
CUSTOMER ADD-ONS
402
YL
COOLANT TEMP GAUGE SENSOR B+
175
PK
TRAILER TURN/HAZARD
403
GN
ALTERNATOR (R) TERMINAL
176
YL
CUSTOMER ADD-ONS
404
YL
OPERATOR MON PANEL HYDRAULIC OIL TEMP
176
OR
CRANKCASE GUARD - PUMP MOTOR
405
GY
OPERATOR MON PANEL OIL PRESS. (LOW SETTING)
177
OR
MAIN BREAKER
406
OPERATOR MON PANEL COOLANT TEMP
178
GN
MAIN BREAKER
407
PK
OPERATOR MON PANEL CONV/RETARDER OIL TEMP
180
GN
DUAL H.P. BREAKER
408
WH
OPERATOR MON PANEL BRAKE PRESS. (AIR)
181
GY
ENGINE SPEED CONTROL- +BATTERY
409
OR
OPERATOR MON PANEL NEUTRAL
182
ENGINE UNDERSPEED CONTROL
410
WH
OPERATOR MON PANEL FAULT ALARM
GROUND CIRCUITS
411
PK
OPERATOR MON PANEL MASTER FAULT LAMP
200
BK
MAIN CHASSIS
412
OPERATOR MON PANEL COOLANT FLOW
201
BK
OPERATOR MONITOR PANEL
413
OPERATOR MON PANEL FUEL PRESS.
202
BK
TRANSMISSION CONTROL
414
PK
OPERATOR MON PANEL LOW FUEL
203
BK
CHASSIS DIAGNOSTIC
415
GN
OPERATOR MON PANEL TEST SW.
204
BK
OPERATOR MONITOR PANEL (SCRAPER)
416
OR
SECONDARY STEERING SW.
205
BK
INSTRUMENT
417
GY
PRIMARY STEERING SW.
206
BK
BATTERY SIDE OF DISCONNECT
418
WH
OPERATOR MON PANEL OIL PRESS. (HIGH SETTING)
207
BK
STARTER DIAGNOSTIC
419
YL
OPERATOR MON PANEL PARKING BRAKE
208
BK
TRAILER CONNECTOR (GROUND)
420
OR
OPERATOR MON PANEL FUEL FILTER/LOW
209
BK
FIRE SUPPRESSION SYSTEM
ACCUM PRESS.
210
BK
CONVERTER OUTPUT (24/12 VOLT)
421
OPERATOR MON PANEL FAULT LAMP (SCRAPER)
211
BK
DISCONNECT DIAGNOSTIC RESISTOR
422
YL
OPERATOR MON PANEL WARNING HORN (SCRAPER)
212
BK
ANTISPIN CODING PIN 16
423
OPERATOR MON PANEL TEST SW. (SCRAPER)
213
BK
ANTISPIN CODING PIN 17
C14610X1
Circuit
Number
Color Description
Circuit
Number
Color Description
MONITORING CIRCUITS (CONT.)
ACCESSORY CIRCUITS (CONT.)
424
GY
OPERATOR MON PANEL POWER TRAIN TEMP
524
BU
WINDSHIELD WIPER-LEFT (LOW)
425
PK
OPERATOR MON PANEL POWER TRAIN OIL LEVEL
525
GY
WINDSHIELD WIPER-LEFT (HIGH)
426
BR
OPERATOR MON PANEL POWER TRAIN OIL FILTER
526
YL
WINDSHIELD WIPER-RIGHT (PARK)
427
GN
OPERATOR MON PANEL POWER TRAIN OIL
527
GN
WINDSHIELD WIPER-RIGHT (LOW)
FILTER JUMPER
528
PK
WINDSHIELD WIPER-RIGHT (HIGH)
428
OR
OPERATOR MON PANEL TRANSMISSION OIL TEMP
529
WH
WINDSHIELD WASHER-LEFT
429
YL
OPERATOR MON PANEL BRAKE OIL TEMP
530
OR
WINDSHIELD WASHER-RIGHT
430
BU
OPERATOR MON PANEL AIR FILTER
531
WH
FIRE WARNING HORN
431
GN
OPERATOR MON PANEL LOW TRANSFER PUMP PRESS.
532
WH
FIRE WARNING LAMP
432
PK
OPERATOR MON PANEL BRAKE PRESS. (OIL)
533
OR
HEAT SENSOR/TEST SW.
433
BU
OPERATOR MON PANEL BRAKE PRESS. (OIL) JUMPER
534
WH
HEAT SENSOR/TEST SW.
434
BU
OPERATOR MON PANEL POWER TRAIN TEMP JUMPER
535
BU
WINDSHIELD SW. TO WIPER SW.
435
YL
OPERATOR MON PANEL POWER TRAIN TEMP JUMPER
536
WH
HAZARD SWITCH TO TURN SWITCH
436
OR
OPERATOR MON PANEL POWER TRAIN OIL
537
GR
TURN SIGNAL SW. TO FLASHER
FILTER JUMPER
538
BR
HAZARD INDICATOR
437
BR
OPERATOR MON PANEL FUEL LEVEL TO FUEL
539
BU
TURN SIGNAL INDICATOR BASIC/RIGHT
FILTER JUMPER
540
WH
TURN SIGNAL INDICATOR LEFT
438
YL
OPERATOR MON PANEL COOLANT TEMP JUMPER
541
GN
ACCESSORY 1
439
YL
LAMP INDICATOR
542
BU
ACCESSORY 2
440
BR
AIR PRESSURE GAUGE
543
BR
TRAILER CONNECTOR (TAIL LAMP)
441
OR
ENGINE COOLANT TEMP GAUGE
544
RD
TRAILER CONNECTOR (STOP LAMP)
442
GY
HYDRAULIC SYSTEM TEMP GAUGE
545
BU
TOGGLE SW. TO BUTTON:MOMENTARY TILT ENABLE
443
YL
POWER TRAIN TEMP GAUGE
546
BU
AUX HYDRAULIC-ROTATE CLOCKWISE
444
BU
CONV/RETARDER OIL TEMP GAUGE (TRACTOR)
547
OR
AUX HYDRAULIC-ROTATE COUNTER-CLOCKWISE
445
GN
CONV/RETARDER OIL TEMP GAUGE (SCRAPER)
548
GY
AUX HYDRAULIC-OPEN
446
PU
BRAKE OIL TEMPERATURE GAUGE
549
PK
AUX HYDRAULIC-CLOSE
447
PK
FUEL LEVEL GAUGE
550
OR
AUX HYDRAULIC LEFT-DISCONNECT TO SW.
448
WH
AIR PRESSURE GAUGE
551
YL
AUX HYDRAULIC RIGHT-DISCONNECT TO SW.
449
BU
SPEEDOMETER SENDER (SIGNAL NO. 1)
552
WH
FOUR WHEEL DRIVE SOLENOID
450
YL
TACHOMETER SENDER (+)
553
YL
PITCH SOLENOID TO TRIGGER SW.-DUAL TILT
451
BR
TACHOMETER SENDER (-)
554
PK
MOMENTARY SW. TO SINGLE TILT SOL.-DUAL TILT
452
PU
TORQUE CONVERTER
555
OR
TRIGGER SW. TO TOGGLE-DUAL TILT
453
PK
SECONDARY STEERING FAULT LAMP
556
WH
DIFFERENTIAL LOCK
454
GN
RETARDER INDICATOR LAMP
557
YL
TRAILER CONNECTOR (LEFT TURN/HAZARD)
455
YL
CONVERTER TEMP SW. TO TIME DELAY
558
GN
TRAILER CONNECTOR (RIGHT TURN/HAZARD)
456
BR
MONITOR PANEL PTO
559
YL
AUTOLUBE SOLENOID
457
PU
MONITOR PANEL GROUND SPEED SENDER
560
GN
HALON PRESS. SW./HALON PRESS. SW.
456
PK
MONITOR PANEL +V
561
BU
HALON PRESS. SW./NITROGEN PRESS. SW.
459
PK
MONITOR PANEL IMPLEMENT POSITION
562
YL
NITROGEN PRESS. SW./NITROGEN PRESS. SW.
460
BU
MONITOR PANEL PROGRAM PIN
563
PU
NITROGEN PRESS. SW./ FIRE MONITOR
461
OR
OPERATOR PANEL BRAKE AIR PRESS. JUMPER
564
GY
REAR WIPER INTERRUPT SW. TO WIPER SW.
462
YL
STEERING MOTOR INDICATOR
565
PU
TOGGLE SW. TO BUTTON:MOMENTARY TILT DISABLE
463
YL
SENSOR PRESENT
566
YL
CONDENSER RELAY COIL TO THERMOSTAT SW.
464
GY
MONITOR PANEL ENGINE OIL PRESSURE SENSOR
567
WH
A/C SWITCH JUMPER
465
OR
LOW CHARGE PRESSURE WARNING
568
GN
WARNING BUZZER TO DIODES
466
WH
MONITOR PANEL STEERING OIL TEMPERATURE
569
PK
A/C SWITCH JUMPER NO.2
467
WH
SYSTEM FAULT (HYDRST)
570
BU
BLADE CUSHION SOLENOID
468
YL
BRAKE OIL CIRCULATION JUMPER
571
OR
DOZER FLOAT SOLENOID/BUCKET
469
GN
FUEL LEVEL SENDER B+
572
PU
BLADE FLOAT LIMIT SW. NO.1
470
PU
CANE SWITCH NEUTRAL
573
GN
BLADE FLOAT LIMIT SW. NO.2
471
PK
TRANSMISSION NEUTRAL TO PARKING BRAKE
574
WH
BLADE FLOAT SOLENOID
472
OR
PARKING BRAKE SW TO OVERSTROKE SW.
575
YL
WINDSHIELD WIPER-AUX (PARK)
473
GY
OVERSTROKE SW. TO OVERSTROKE SW.
576
PK
WINDSHIELD WIPER-AUX (LOW)
474
WH
OVERSTROKE SW. TO OVERSTROKE SW.
577
PU
WINDSHIELD WIPER-AUX (HIGH)
475
BR
OVERSTROKE SW. TO TRAILING UNIT
578
BU
WINDSHIELD WASHER-AUX
476
BU
CONTROL LEVER LOCK INDICATOR
579
BR
A/C BLOWER MOTOR NO.1
477
YL
SPEEDOMETER SENDER (SIGNAL NO. 2)
580
OR
A/C BLOWER MOTOR NO.2
478
GY
PRESS. SW. TO RED LAMP-IMPACT RIPPER
581
GY
LEFT REAR TURN/HAZARD
479
BU
PRESS. SW. TO GREEN LAMP-IMPACT RIPPER
582
PK
RIGHT REAR TURN/HAZARD
480
PK
NEUTRAL-CST TO AWD
583
OR
A/C BLOWER TO BLOWER BREAKER
481
GN
CONV TEMP SW. TO BRAKE OIL TEMP SW.
584
YL
WIPER SWITCH JUMPER
483
BR
BRAKE FLUID LEVEL
585
YL
AUX HYDRAULIC-OPEN
484
YL
PRIMARY STEERING LAMP
586
BR
AUX HYDRAULIC-CLOSE
485
YL
OPERATOR MON PANEL ALL WHEEL DRIVE FAULT
LIGHTING CIRCUITS
A400
PK
FUEL PRESSURE SENDER
600
BR
DASH BASIC
A402
BU
COOLANT PRESSURE SENDER
601
GY
DASH HIGH
A417
WH
EMS SCRAPER TRANSMISSION
602
WH
DOME LAMP
ACCESSORY CIRCUITS
603
PK
ROTARY BEACON
500
BR
WINDSHIELD WIPER - FRONT (PARK)
604
OR
STOP LAMP
501
GN
WINDSHIELD WIPER - FRONT (LOW)
605
YL
TURN-LEFT
502
OR
WINDSHIELD WIPER - FRONT (HIGH)
606
GY
TURN-RIGHT
503
BR
WINDSHIELD WIPER - REAR (PARK)
607
PK
FLOOD-FRONT
504
YL
WINDSHIELD WIPER - REAR (LOW)
608
GN
FLOOD-REAR
505
BU
WINDSHIELD WIPER - REAR (HIGH)
609
YL
FLOOD-SIDE
506
PU
WINDSHIELD WASHER - FRONT
610
OR
HEAD LAMP BASIC
507
WH
WINDSHIELD WASHER - REAR
611
PU
HEAD LAMP HIGH
508
PU
RADIO SPEAKER-LEFT
612
GY
BACKUP
509
WH
RADIO SPEAKER-LEFT (COMMON)
613
PK
LICENSE PLATE
510
YL
WINDSHIELD WASHER-PRIMER
614
PU
PARK/TAIL/DASH
511
BR
RADIO SPEAKER-RIGHT
615
YL
CAB FLOOD/ROPS
512
GN
RADIO SPEAKER-RIGHT (COMMON)
616
BU
BUCKET FLOOD/BOOM FLOOD
513
OR
AIR CONDITIONER COMPRESSOR/REFRIGERANT
617
BR
TAIL/POSITION LAMP-LEFT (ROADING PACKAGE)
PRESS. SW.
618
YL
TAIL/POSITION LAMP-RIGHT (ROADING PACKAGE)
514
PU
AIR CONDITIONER CONDENSER MOTOR
619
GR
HEAD LAMP LOW
515
GY
BLOWER MOTOR (HIGH)
620
WH
FLOOD-FRONT (ENGINE FLOOD LAMP)
516
GN
BLOWER MOTOR (MEDIUM)
621
GY
FLOODLAMP INDICATOR LAMP
517
BU
BLOWER MOTOR (LOW)
622
PU
FLOODLAMP 3 WAY SWITCH JUMPER
518
OR
HAZARD FLASHER TO SWITCH
623
BU
FLOODLAMP 3 WAY SWITCH JUMPER
519
PK
THERMOSTAT TO REFRIGERANT PRESS. SW.
624
YL
FLOODLAMP BOWL
520
WH
OPERATOR AIR CONDITIONER SWITCH
625
BK
COURTESY LAMP
TO THERMOSTAT/FUSE
626
BU
DASH DIMMER
521
YL
AIR COND SW. TO REFRIGERANT SWITCH
627
YL
FOG LAMP
522
WH
AIR COND CLUTCH TO THERMOSTAT SW.
628
PK
RIGHT TURN DASH INDICATOR
523
BR
WINDSHIELD WIPER-LEFT (PARK)
629
PK
AUX HEAD LAMP
C14611X1
Circuit
Number
Color Description
Circuit
Number
Color Description
LIGHTING CIRCUITS (CONT.)
CONTROL CIRCUITS (CONT.)
630
GY
FLOOD REAR (ATTACH)
791
PK
ENGINE SPEED CONTROL-LOW SPEED SOLENOID
631
GY
FOG LAMP-RIGHT
792
OR
UNDERSPEED PROPORTIONAL SOLENOID
632
WH
FOG LAMP-LEFT
793
YL
ENGINE SPEED CONTROL-LOW PRESSURE SWITCH
633
BU
ATTACH LIGHTING CIRCUIT
794
YL
PAYLOAD MONITOR TRANSMISSION PICKUP
634
WH
HEAD LAMP SW TO WORK/HEAD LAMP JUMPER
795
YL
DUAL kW SOLENOID
635
BR
TURN SIGNAL COMMON
798
GN
FAST DUMP SW. TO 4TH FUNCTION SW.
635
BU
PAYLOAD MONITOR RED LIGHT
799
WH
PAYLOAD MONITOR SENSOR POWER
636
GN
PAYLOAD MONITOR GREEN LIGHT
800
BU
AUTOMATIC MODE-LOCKUP CLUTCH
637
GN
LOCKUP CLUTCH LAMP
801
PK
LUBE SOLENOID
CONTROL CIRCUITS
802
YL
LUBE PRESSURE SWITCH
700
PK
ANTISPIN TEST SWITCH
803
BU
AUTO FIRE SYSTEM SWITCH POWER
701
OR
TRANSMISSION LOCKUP CLUTCH SOL (SCRAPER)
804
GN
AUTO FIRE BRAKE SWITCH
702
OR
TRANSMISSION BRAKE SWITCH JUMPER
805
PK
AUTO FIRE BRAKE SWITCH
703
BU
TRANSMISSION UP SOLENOID
806
GY
AUTO FIRE DISCHARGE SWITCH
704
GY
TRANSMISSION DOWN SOLENOID
807
BR
AUTO FIRE NITROGEN SWITCH TO CONTROL
705
PK
TRANSMISSION LOCKUP CLUTCH SOL BASIC
808
PU
AUTO FIRE NITROGEN SW. TO NITROGEN SW.
706
BR
TRANSMISSION RETARDER SWITCH
809
GN
AUTO FIRE SYSTEM WARNING CKT.
707
PU
TRANSMISSION BED RAISE SWITCH
810
BU
AUTO FIRE SYSTEM FAILURE CKT.
708
YL
TRANSMISSION HOLD SWITCH
811
GY
FIRE TEST CKT.
709
OR
TRANSMISSION PICKUP POWER
812
GN
FIRE NITROGEN ACTUATION SOLENOID
710
GN
TRANSMISSION SPEED PICKUP SIGNAL
813
PK
AUTO FIRE AGENT CYLINDER SW. TO NITROGEN SW.
711
BR
TRANSMISSION LEVER CODE 1
814
YL
AUTO FIRE AGENT SW. TO AGENT SW.
712
WH
TRANSMISSION LEVER CODE 2
815
WH
LOCKUP CLUTCH TRANSMISSION PRESSURE SW.
713
OR
TRANSMISSION LEVER CODE 3
816
BR
AUTO FIRE ALARM
714
YL
TRANSMISSION LEVER CODE 4
817
WH
BACKUP ALARM RELAY
715
GN
TRANSMISSION LEVER CODE 5
818
BR
PAYLOAD MONITOR SERIAL DATA (TX)
716
BU
TRANSMISSION LEVER CODE 6
819
GY
PAYLOAD MONITOR SERIAL DATA (RX)
717
BR
BOWL APRON SOL FLOAT/VCTC SOL
820
BU
PAYLOAD MONITOR TRANSMIT KEY
720
PU
TRANSMISSION BRAKE SW.
821
YL
LOCKUP CLUTCH PRESSURE SENSOR RETURN
721
BR
TRANSMISSION GEAR CODE 1
822
PK
FORWARD HYDRST SYNC SOLENOID
722
WH
TRANSMISSION GEAR CODE 2
838
YL
FRONT GUARD MOTOR
723
OR
TRANSMISSION GEAR CODE 3
839
BU
FRONT GUARD MOTOR
724
YL
TRANSMISSION GEAR CODE 4
856
GN
ENGINE UNDERSPEED CONTROL-THROTTLE SWITCH
725
GN
TRANSMISSION GEAR CODE 5
857
OR
SWING ORIFICE SOLENOID (EXCAVATOR)
726
BU
TRANSMISSION GEAR CODE 6
858
GY
PAYLOAD MONITOR RIGHT FRONT SIGNAL
727
GN
STEERING MOTOR RELAY
859
YL
PAYLOAD MONITOR LEFT FRONT SIGNAL
728
BU
SUPPLEMENTAL STEERING CONTROL SWITCH
860
PK
PAYLOAD MONITOR RIGHT REAR SIGNAL
729
PU
EJECTOR RETURN SOLENOID
861
PU
PAYLOAD MONITOR LEFT REAR SIGNAL
730
OR
EJECTOR RETURN DETENTED SOLENOID
863
BU
PAYLOAD MONITOR TRANSMIT LCD OUT
731
BU
EJECTOR EJECT DETENTED SOLENOID
864
BR
PAYLOAD MONITOR CLOCK LCD OUT
732
BR
EJECTOR KICKOUT ON RETURN SOLENOID
865
GY
PAYLOAD MONITOR LATCH LCD OUT
733
BR
SWITCHING GEAR CODE 1 FRONT
866
PK
PAYLOAD MONITOR TEST/SET
734
WH
SWITCHING GEAR CODE 2 FRONT
867
PU
PAYLOAD MONITOR MODE
735
OR
SWITCHING GEAR CODE 3 FRONT
870
OR
3 POINT HITCH CONTROL-DOWN SOLENOID
736
YL
SWITCHING GEAR CODE 4 FRONT
871
BU
3 POINT HITCH CONTROL-SOLENOID COMMON
737
GN
SWITCHING GEAR CODE 5 FRONT
872
YL
3 POINT HITCH CONTROL-UP SOLENOID
738
BR
SWITCHING GEAR CODE 1 REAR
873
WH
FRONT GUARD POWER
739
WH
SWITCHING GEAR CODE 2 REAR
874
GY
REAR GUARD POWER
740
OR
SWITCHING GEAR CODE 3 REAR
878
OR
DISPLACEMENT SOLENOID
741
YL
SWITCHING GEAR CODE 4 REAR
888
PK
3 POINT HITCH CONTROL-HITCH POSITION
742
GN
SWITCHING GEAR CODE 5 REAR
889
GY
3 POINT HITCH CONTROL-HANDLE POSITION
743
PU
SWITCHING NEUTRAL/RUN SW.
890
PU
3 POINT HITCH CONTROL-HOOKUP SWITCH
744
BU
SWITCHING UP SOLENOID
896
GN
NEUTRAL START CONTROL TO AUGER MASTER SW.
745
GY
SWITCHING DOWN SOLENOID
897
GN
REAR GUARD MOTOR
746
PK
SWITCHING SYNCHRONIZE SOLENOID
898
PU
REAR GUARD MOTOR
747
WH
SWITCHING NO SYNCHRONIZE SOLENOID
904
WH
IMPACTOR SWITCH TO RELAY CONTACT
748
BR
SUPPLEMENTAL STEERING DUMP VALVE (MOTOR GR.)
905
PK
IMPACTOR SWITCH TO RELAY CONTROL
749
OR
SUPPLEMENTAL STEERING GOVERNOR
906
PU
RELAY CONTACT TO DRAWBAR PRESSURE SWITCH
SWITCH (MOTOR GR.)
907
YL
TRIGGER SWITCH TO HOUR METER
750
GN
EJECTOR KICKOUT
908
GY
DRAWBAR PRESS. SW. TO RIPPER FRAME PRESS. SW.
751
GN
COUNTERSHAFT SHIFT SOLENOID NO.1 OR 3
910
YL
TRANSMISSION NEUTRALIZER SWITCH TO OVERRIDE
752
YL
COUNTERSHAFT SHIFT SOLENOID NO. 2
916
BU
SCRAPER TRANSMISSION GEAR CODE 6
753
GY
LOCKUP CLUTCH CONTROL TO SWITCH
916
GY
SWITCH TO LOCKUP CLUTCH CONTROL ENABLE
754
BU
COUNTERSHAFT SHIFT SOLENOID NO.3 OR 1
917
WH
DUAL HP RELAY TO SWITCH
755
OR
COUNTERSHAFT SHIFT SOLENOID NO.4 OR 5
918
OR
ENGINE OVERSPEED LIGHT AND HORN
756
WH
TRANSMISSION LOCKUP CLUTCH SOLENOID
919
GN
ENGINE OVERSPEED TEST SWITCH
761
GY
LIFT KICKOUT SOLENOID SW.
929
GN
BRAKE RETRACT BREAKER TO RELAY
762
YL
BUCKET POSITIONER SOLENOID SW.
930
BR
BRAKE RETRACT SWITCH TO RELAY COIL
763
BU
TORQUE CONVERTER SWITCH
931
GY
AUTO FIRE NITROGEN SW. TO NITROGEN SW.
764
PU
SUPPLEMENTAL STEERING CONTROL SW./MOTOR GR.)
932
GN
AUTO FIRE AGENT SWITCH TO AGENT SWITCH
765
OR
APRON SOLENOID (SCRAPER)
933
PU
AUTO FIRE AGENT SW. TO NITROGEN SW.
766
GN
TRANSMISSION DISCONNECT SOLENOID
767
WH
ANTISPIN PICKUP POWER
768
OR
ANTISPIN PICKUP TRANSMISSION
769
BU
WHEEL SPEED PICKUP-LEFT
770
GN
WHEEL SPEED PICKUP-RIGHT
771
PU
ANTISPIN SERVICE BRAKE SW.
772
BR
ANTISPIN RETARDER SW.
773
GY
ANTISPIN SERVOVALVE
774
YL
ANTISPIN SOLENOID-LEFT
775
BR
ANTISPIN SOLENOID-RIGHT
776
YL
BRAKE RELEASE RELAY CONTROL
777
PU
BRAKE RELEASE MOTOR
778
BR
DIRECT DRIVE LOW RANGE SOLENOID
779
WH
COUPLER ENGAGE SOLENOID
780
PU
COUPLER DISENGAGE SOLENOID
781
PK
AUGER MASTER SW. TO AUGER SW.
782
GY
4TH VALVE SW. TO 4TH VALVE SOLENOID
783
OR
DOWNSHIFT INHIBIT
784
YL
LOCKUP CLUTCH INHIBIT
785
PK
ENGINE SPEED CONTROL PRESS. SW. TO MODE SW.
786
GN
ENGINE SPEED CONTROL-HI PRESSURE SWITCH
787
WH
AUGER SWITCH TO AEM RESISTOR
788
YL
ENGINE SPEED (+)
789
PK
CONTROL LEVER LOCK
790
BU
ENGINE SPEED CONTROL-MEDIUM SPEED SOLENOID
C14612X1
A - COMPONENTS IN OPERATOR COMPARTMENT
B - COMPONENTS IN OPERATOR COMPARTMENT - RELAY PANEL
Ident. Schematic Components Location Ident. Schematic Components Location
1 Alarm - Backup B-9 15 Solenoid - Front - Drive C-2
A Alarm - Fault C-3 16 Solenoid - Start Aid F-2
2 Alternator C-1 17 Solenoid - Transmission Neutralizer C-2
3 Batteries F-5 A Speedometer D-4
B Breaker - Alternator C-8 B Switch - Head/Front Lamp D-7
B Breaker - Running Lamp C-8 18 Switch - Backup Alarm D-3
A Flasher C-9 B Switch - Beacon D-7
B Fuse Block C-8 A Switch - Blower and Air Conditioner E-3
B Gauge - Converter Temperature D-8 19 Switch - Bucket Positioner A-1
B Gauge - Coolant Temperature D-8 20 Switch - Coolant Temperature C-2
B Gauge - Fuel D-9 21 Switch - Coolant Temperature (Start Aid) C-1
B Gauge - Tachometer D-9 A Switch - Dimmer E-4
4 Horn - Forward D-1 22 Switch - Engine Oil Pressure D-1
B Meter - Service D-8 A Switch - Forward Horn C-4
B Meter - Volt D-8 B Switch - Front Drive C-6
A Motor - Blower D-3 B Switch - Front Wiper C-6
A Motor - Fan E-7 B Switch - Hazard D-7
A Motor - Front Wiper D-3 B Switch - Key Start D-8
A Motor - Rear Wiper E-9 A Switch - Lamp Test C-4
5 Motor - Starter E-2 23 Switch - Neutral/Start C-2
6 Motor - Windshield Washer F-4 24 Switch - Parking Brake B-7
B Relay - Main C-7 25 Switch - Parking Brake Neutral C-2
B Relay - Start C-7 B Switch - Rear Flood Lamp D-7
7 Resistor - Alternator Field D-7 B Switch - Rear Wiper C-6
A Resistor - Blower Motor Speed D-3 26 Switch - Refrigerant F-1
8 Sender - Converter C-2 B Switch - Running Lamp D-6
9 Sender - Coolant Temperature C-1 B Switch - Start Aid D-7
10 Sender - Fuel A-6 A Switch - Thermostat C-3
11 Sender - Speedometer C-2 A Switch - Turn Signal E-4
12 Solenoid - Air Conditioner Clutch D-1 A Switch - Wiper Disconnect E-8
13 Solenoid - Bucket Positioner A-4 27 Switches - Brake {Stop Light) D-4
14 Solenoid - Engine Shutdown D-2 A Switches - Transmission Neutralizer D-6, D-4
Switch Specifications
Part No. Function Actuate Deactuate Normal Condition
8N1693 Engine Coolant Temp. (Start Aid)
37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80°F MIN)
N.C.
6T1546
Engine Oil Pressure (EMS)
Fuel Pressure (EMS)
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10.0 ± 3.0 psi)
N.O.
6T2665 Engine Coolant Temperature
107.2 ± 2.8°C
(225 ± 5°F)
93°C min.
(196°F)
N.O.
6T4949
Engine Oil Pressure (EMS)
Engine Oil Pressure (S.Meter)
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10.0 ± 3.0 psi)
N.O.
N.O. = NORMALLY OPEN N.C. = NORMALLY CLOSED
Connectors Ident. Harness And/Or Components
Schematic
Location
A - 9R0896
K - 9R0893
E - 9R0889
H - 9R0892
E - 9R0889
L - 9R0890
E - 9R0889
H - 9R0892
B - 9R2148
E - 9R0889
B - 9R2148
GG - 9R2149
D - 9R0802
E - 9R0889
E - 9R0889
G - 9R0887
D - 9R0802
E - 9R0889
GG - 9R2149
Head/Position Turn Lamp
GG - 9R2149
MM - 9R2537
A - 9R0896
Front Wiper Motor
A - 9R0896
Rear Wiper Motor
B - 9R2148
NN - *
* For the 428 and 438 use 9R2384.
For the 416, 426 and 436 use 9R5214.
E-9
A-9, F-9
C-4
A-2, F-3
E-4
D-3
A-8
E-2
B-4
A-7
B-8
B-7
E-3
B-7
7 CONTACTS
6 CONTACTS
5 CONTACTS
4 CONTACTS
10 CONTACTS
9 CONTACTS
8 CONTACTS
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
10
14
3
8
5
6
4
9
10
11
12
14
15
13
16
1
2
17
18
19
20
21
22
23
24
25
26
27
7
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3
4
5
6
8
9
10
11
12
14
15
13
16
B
1
2
17
18
19
20
21
22
23
24
25
26
27
7
B
C10282X3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C
603-PK
606-GY-14
605-YL-14
S
ATCH
STD
ATCH
STD
C-1047W0810
200-BK
W
E
BATMTR
SG
BK
BK
01
01
02
05
05
04
01
05
03
03
01
03
01
01
02
04
02
01
02
02
00
02
04
06
01
02
03
01
09
10
02
9R2537
3 OF THE HEAD LAMP/FRONT FLOOD LAMP SW
FROM TERM 1 OF THE RUNNING LAMP SW TO TERM
NOTE C: WITH ATCH FRONT FLOOD LAMPS MOVE 610-OR-14
NOTE B: NORMALLY CLOSED WHEN BRAKE IS DEPRESSED
7P6682
E-71V1151EE
THIS SCHEMATIC IS FOR THE 416, 426, 428,
436 & 438 BACKHOE COSA (7T3474 CHG 04)
CABLE AS.
D-9
D-79R0895
QQ
NN
9R2402
C-4/C-59R0763U
F-49R1066
J
9R2400
D-2
9R1925
F-59R1176
9R0894
D-3W
N
M
9R2206
9R0984
B-8
B-8
B-89R0902
MM D-5
C-4
9R2127 E-4
E-29R2149
7T3551 E-3
E-37T3550
A-9/F-99R2384
DD
V
E-3
9R7811 B-4
9R0803
C-29R0985
E-3
B-8
B-7
A-6
B-8
B-7
C-4
A-9
A-8
B-8
9R2148
9R0896
9R0890
9R6793
9R6792
9R0887
9R1428
9R0889
9R0802
9R1626
CC
9R1175
BB
BB
B
U
U
F-5
F-5
F-5
F-5
9R1083AA
LL
HH
GG
R
9R1035AA
Z
X
T
WIRE AS.
Q
P
L
K
H
G
F
E
D
C
B
A
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
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 16 GAGE
C
B
A
23
1
3 2
F
E
D
1
456
6 5 4
789
C
B
A
9 8 7
E
E
F
NOTE C
32
1
607-PK-14
607-PK-14
634-WH-14
610-OR-14
HEAD LAMP/
FRONT FLOOD
LAMP SW
3T3134
REAR
FLOOD
LAMP
9W1001
BK-14
EE
MOTOR
TO
PLATFORM
NN
A
BEACON
7T0618
4
3
2
1
BK-14
GY-14
YL
OR
B
200-BK-14
200-BK
STOP/TURN/
TAIL LAMP
922992
200-BK
604-OR
617-BR
605-YL-14
200-BK-14
FAN
5D2855
OR-14
RD-14
119-PK
200-BK
608-GN
603-PK
200-BK
608-GN
200-BK
200-BK
H
3
21
WIPER
DISCONNECT SW
6T5925
N.O.
N.C.
COM
564-GY
564-GY
OPERATOR STATION
OPERATOR STATION
REAR
WIPER
6T6529
OR
GN
BR
GY
1
2
4
3
504-YL
505-BU
503-BR
119-PK
-T
MOTOR
607-PK-14
607-PK-14
607-PK-14
REAR
FLOOD
LAMP
9W1001
BACKUP
ALARM
6T7622
NN
200-BK-14
606-GY-14
604-OR
618-YL
4
3
2
1
BK-14
GY-14
YL
OR
C
EB
B
B
LICENSE
LAMP
321-BR
121-YL
200-BK-14
STOP/TURN/
TAIL LAMP
922992
200-BK
200-BK-14
6
3
5
1
8
4
2
7
3
2
1
04
PARK
BRAKE SW
6T5925
128-PK
143-BR
200-BK
200-BK
608-GN
538-BR-14
H
B
F
607-PK-14
536-WH-14
121-YL
200-BK
506-PU
200-BK
618-YL
617-BR
606-GY-14
605-YL-14
610-OR-14
603-PK
608-GN
603-PK
617-BR
604-OR
605-YL-14
R
NOTE F: FUSES 10A-3K8787 15A-8M8948 30A-8M8947
K
9R5907 C-2RR
RR
W RR
NOTE E: FOR THE 428 AND 438 ONLY
NOTE D: FOR THE 416, 426 AND 436 ONLY
9R5214
618-YL
617-BR
9R5906 ATCH
604-OR
STD
D-3W
A-9/F-9NN D
E
NOTE
11
8-G
Y
H
308-YL
308-YL
FUSE HOLDER
4K5122
NOTE F
308-YL
109-OR-10
194-GN-10
112-PU-10
194-GN-10
10A
TACHOMETER
6T7540
-+
SERVICE
METER
6T7337
J
X
614-PU-14
614-PU
537-GN-14
536-WH-14
161-PK-14
157-YL-14
441-OR
443-YL
447-PK
- +
SIG
IGN
SEND
GRD
IGN
SEND
GRD
IGN
SEND
GRD
IGN
GRD
538-BR-14
536-WH-14
RESISTOR
8C4110
200-BK
START
AID SW
7N8001
310-PU
5
OPERATOR STATION
OPERATOR STATION
2
6
4
3
1
HAZARD SW
3T4405
DIODE
9P5153
608-GN
607-PK-14
614-PU
307-OR
309-GY
308-YL
START SW
9G7641
REAR FLOOD
LAMP SW
7N8000
105-BR
308-YL
308-YL
603-PK
BEACON SW
7N8000
121-YL
116-BR
ST
ON
OFF
B
S
C
R
123-WH
614-PU
200-BK
123-WH
123-WH
LAMP
8M6176
LAMP
8M6176
LAMP
8M6176
LAMP
8M6176
LAMP
8M6176
COOLANT
TEMP GAGE
4W2622
CONV TEMP
GAGE
4W2621
FUEL
GAGE
4W2620
VOLTMETER
4W2142
123-WH
200-BK
450-YL
400-GN
614-PU
200-BK
123-WH
614-PU
200-BK
123-WH
614-PU
200-BK
123-WH
614-PU
200-BK
123-WH
101-RD-6
101-RD-14
XMSN NEUT/STOP LAMP/FRONT DRIVE
A
N
M
T
200-BK-14
200-BK
200-BK
49A
BACKUP ALARM/BEACON
OUT (LAMP)
+ BATTERY
GROUND
31
49
200-BK-14
K
304-WH-10
K
H
321-BR
568-GN
608-GN
606-GY-14
605-YL-14
610-OR-14
603-PK
608-GN
H
H
E
E E
FLASHER
7T4848
200-BK
157-YL-14
161-PK-14
537-GN-14
536-WH-14
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
3
2
1
157-YL-14
304-WH-10
304-WH-10
143-BR
ALTERNATOR
BREAKER
9S0173
MONITOR LAMPS
124-GN-10
143-BR
116-BR
121-YL
15A
10A
200-BK-14
143-BR
618-YL
617-BR
128-PK
124-GN-10
536-WH-14
307-OR
608-GN
603-PK
450-YL
447-PK
400-GN
PANEL
LAMP
8L9801
200-BK
200-BK
310-PU
306-GN
121-YL
441-OR
443-YL
309-GY
308-YL
102-BU-14
109-OR-10
109-OR-6
109-OR-6
109-OR-6
109-OR-6
IGN
SEND
GRD
5477-YL
477-YL
SPEEDOMETER
7T6987
607-PK-14
TRANSMISSION
NEUTRALIZER SW
9R2612
TRANSMISSION
NEUTRALIZER SW
9R2612
FRONT
FLOOD
LAMP
9W1001
LEFT TURN
IND LAMP
8M6176
TO
FRAME
TO
PLATFORM
TO
FRAME
200-BK
QQ
143-BR
143-BR
MM
GG
618-YL
449-BU
200-BK
4
3
2
1
143-BR
618-YL
449-BU
200-BK
200-BK-14
605-YL-14
604-OR
617-BR
200-BK-14
200-BK-14
HH
GG
3
2
1
B
60A
109-OR-6
102-BU-14
406-PU
405-GY
3
1
2
200-BK
143-BR
604-OR
BRAKE SW
(NOTE B)
6T5925
506-PU
WASHER
6T1375
MOTOR
6
5 4
3
2 1
TURN
SIGNAL SW
7T3946
BK-00
RD-00
RD-00
BK-00
BK-00
200-BK-14
200-BK
200-BK
Z
BATTERY
3T5760
BATTERY
3T5760
NEGPOS
BBAA
BK-6
NEGPOS
200-BK
HIGH BEAM
IND LAMP
8M6176
611-PU
102-BU-14
611-PU
606-GY
605-YL
143-BR
604-OR
503-BR
505-BU
504-YL
564-GY
119-PK
118-GY
502-OR
501-GN
500-BR
102-BU-14
113-OR
405-GY
419-YL
406-PU
S
200-BK
200-BK
DIMMER SW
3T3134
610-OR-14
619-GN-14
HAZARD
IND LAMP
8M6176
538-BR
606-GY-14
605-YL-14
101-RD-14
538-BR-14
113-OR
610-OR-14
552-WH
506-PU
10
9
8
7
6
5
4
3
2
1
564-GY
119-PK
503-BR
504-YL
505-BU
500-BR
501-GN
502-OR
109-OR-10
HAZARD LAMPS
KEY
161-PK-14
105-BR
618-YL
617-BR
RIGHT TAIL LAMP
LEFT TAIL LAMP
BLOWER MOTOR
308-YL
START
RELAY
302266
200-BK
MAIN
RELAY
7X1379
308-YL
306-GN
200-BK
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
128-PK
113-OR
123-WH
121-YL
116-BR
118-GY
119-PK
OPERATOR STATION
1
1
2
2
3
3
N.C
N.O.
COM
COM
N.C
N.O.
ENGINE OIL
PRESS LAMP
8M6176
RIGHT TURN
IND LAMP
8M6176
COOLANT
TEMP LAMP
8M6176
PARK BRAKE
LAMP
8M6176
766-GN
143-BR
BRAKE SW
(NOTE B)
6T5925
113-OR
113-OR
766-GN
143-BR
200-BK
477-YL
477-YL
419-YL
607-PK-14
FRONT
FLOOD
LAMP
9W1001
BUCKET
POSITIONER
SOLENOID
9T7304
DE
200-BK
506-PU
618-YL
617-BR
606-GY-14
605-YL-14
610-OR-14
449-BU
B
449-BU
PN
RQ
LL
1
2
2
1
FUEL
SENDER
7W1279
FRONT
WIPER SW
3T6655
E G
E
G
2
1
D
E
E
E
E D
D
D
D
200-BK
200-BK
121-YL
321-BR
2
1
3
5
4
7
6
400-GN
304-WH-10
3
607-PK-14
608-GN
200-BK
101-RD-6
109-OR-6
143-BR
766-GN
143-BR
766-GN
143-BR
766-GN
200-BK
447-PK
143-BR
310-PU
405-GY
406-PU
143-BR
536-WH-14
128-PK
538-BR-14
128-PK
322-GY
419-YL
419-YL
405-GY
406-PU
LAMP
TEST SW
7N8009
200-BK
447-PK
419-YL
113-OR
604-OR
606-GY-14
605-YL-14
405-GY
406-PU
521-YL
522-WH
322-GY
2
3
4
1
6
7
8
5
2
1
766-GN
538-BR-14
2
1
522-WH
443-YL
307-OR
321-BR
306-GN
2
4
5
6
1
309-GY
400-GN
308-YL
441-OR
450-YL
521-YL
522-WH
128-PK
322-GY
FORWARD
HORN SW
3T2357
TURN LAMPS
RELAY
7X1379
BUCKETPOS/HORN
FRONT WIPER
REAR WIPER
REAR FLOOD
GAGES
RUNNING LAMP
BREAKER
3T2662
441-OR
447-PK
443-YL
400-GN
450-YL
15A
30A
102-BU
5
4
21
RUNNING
LAMP SW
7T3946
610-OR-14
614-PU
102-BU-14
614-PU
FRONT
DRIVE SW
7N8000
552-WH
112-PU-10
01
03
02
506-PU
564-GY
118-GY
503-BR
504-YL
505-BU
500-BR
501-GN
502-OR
1BK
BK 2
128-PK
762-YL
118-GY
REAR
WIPER SW
3T9495
118-GY
B
B
HL
W
P
B
B
HL
W
P
OPERATOR STATION
8
06
477-YL
BACKUP
ALARM SW
6T4949
D
BK
RD 2
1
200-BK
321-BR
1
3
4
5
2
GY
MOTOR
ENGINE
SHUTDOWN
SOLENOID
7W6249
W
2
1
BK
RD
HEAD/POSITION
TURN LAMP
7T7103
617-BR
PU
GN
YL
BK
GG
619-GN-14
611-PU-14
200-BK-14
605-YL-14
TO
ENGINE
TO
FRAME
BGG
200-BK-14
617-BR
605-YL-14
611-PU-14
619-GN-14
200-BK-14
04
04
618-YL
611-PU-14
606-GY-14
619-GN-14
200-BK-14
618-YL
449-PU
611-PU-14
619-GN-14
610-OR-14
CHG
PARKING
BRAKE
NEUTRAL SW
6T5925
6
5
1
2
7
4
3
A
W
V
QDD
3
4
5
2
1
FRONT
WIPER
6T6529
568-GN
101-RD-6
D
E
EL
D
2
1
406-PU
405-GY
113-OR
406-PU
405-GY
113-OR
DIODE
9P5153
113-OR
405-GY
406-PU
200-BK
200-BK
BLOWER
7T2054
BU-18
RD-18
2
1
522-WH
521-YL
10
9
8
7
6
5
4
3
2
1
304-WH-10
STARTER
7X1361
304-WH-10
BLOWER SW
6P3236
RESISTOR
7T3828
517-BU-12
516-GN-12
515-GY-12
520-WH-12
OR
GRN
BLU
BLK
RED
101-RD-6
FORWARD
HORN
7T0635
2
1
311-WH
310-PU
BK
BK
200-BK
200-BK
311-WH
310-PU
102-BU-14
143-BR
604-OR
200-BK
200-BK-12
128-PK
538-BR-14
536-WH-14
DOME
LAMP
4M3601
124-GN-10
200-BK-14
522-WH
521-YL
113-OR
405-GY
419-YL
406-PU
322-GY
606-GY-14
605-YL-14
MOTOR
515-GY-12
2
1WH/RD-14
BK-14
118-GY
502-OR
501-GN
500-BR
OR
GN
BR
GY
1
2
4
3
-T
MOTOR
OPERATOR STATION
START AID
SOLENOID
3T9493
521-YL
521-YL
521-YL
522-WH
513-OR
REFRIGERANT SW
(NOTE A)
5V5698
513-OR
CC
200-BK
ENGINE
OIL SW
6T1546
BK-00
405-GY
400-GN
200-BK
3
2
1 BK-18
AIR
CONDITIONER
CLUTCH
SOLENOID
8T8812
308-YL
200-BK
322-GY
BK-00
RD-00
477-YL
1
3
4
5
2
GY
SPEEDOMETER
SENDER
7T7757
FAULT
ALARM
7T9157
COOLANT SW
8N1693
HEAD/POSITION
TURN LAMP
7T7104
PU
GN
YL
BK
GG
200-BK
TO
PLATFORM
TO
ENGINE
2
1
LL
449-BU
P
200-BK
200-BK
308-YL
309-GY
TRANSMISSION
NEUTRALIZER
SOLENOID
6T9519
CONVERTER
SENDER
4W9972
405-GY
406-PU
310-PU
400-GN
450-YL
441-OR
109-OR-6
762-YL
400-GN
D
2
1
BUCKET
POSITIONER SW
6T5925
520-WH-12
2
1
D+
W
ALT
ALTERNATOR
7T2876
109-OR-6
FRONT DRIVE
SOLENOID
6T9519
552-WH
400-GN
618-YL
619-GN-14
611-PU-14
200-BK-14
606-GY-14
BK
BK
BK
BK
200-BK
THERMOSTAT SW
6T9395
FUSE HOLDER
4K5122
FUSE
3K8782
10A 521-YL
522-WH
200-BK
-T
200-BK
200-BK406-PU
311-WH
COOLANT SW
6T2665
COOLANT
SENDER
7N8532
441-OR
-T
-T
-T
12
3
N.C.
N.O.
COM
766-GN
307-OR
306-GN
443-YL
NEUTRAL/
START SW
8C5492
-T
200-BK
200-BK
762-YL
BK-6
309-GY
450-YL
D32346