651E ELECTRICAL SCHEMATIC

©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR6814 - 01
August 1995
651E WheelTractor - Scraper
Electrical System
Scraper
88Z239 - UP
Tractor
89Z271 - UP
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits
101 RD BAT (+) (NOT APPLICATION SPECIFIC) 500 BR WIPER - FRONT (PARK)
102 BU HD LMP 502 OR WIPER - FRONT (HI)
103 YL AUX CKT 506 PU WASHER - FRONT
105 BR KEY SW 507 WH WASHER - REAR
109 OR ALT OUTPUT (+) TERM. 513 OR A/C COMPRESSOR/REFRIGERANT PRESS. SW
112 PU MAIN POWER RLY OUTPUT 515 GY BLOWER MOTOR (HI)
113 OR OPR MON PANEL B+ SWITCHED 516 GN BLOWER MOTOR (MEDIUM)
114 GN WARNING HORN (FORWARD) 517 BU BLOWER MOTOR (LO)
118 GY AUX CKT 521 YL A/C SW TO REFRIGERANT SW
119 PK AUX CKT 522 WH A/C CLUTCH TO THERMOSTAT SW
121 YL BCKP ALARM TO LAMP Lighting Circuits
122 BU AUX CKT 601 GY DASH LAMP HI
123 WH AUX CKT 602 WH DOME LAMP
124 GN A/C 608 GN FLOOD LAMP - REAR
125 OR AUX CKT 610 OR HEAD LAMP BASIC
126 PK XMSN CTRL 611 PU HEAD LAMP HI
165 YL AUX CKT Control Circuits
Ground Circuits 703 BU XMSN UP SOL
200 BK MAIN CHASSIS 704 GY XMSN DOWN SOL
201 BK OPR MON PANEL 706 BR XMSN RETARDER SW
202 BK XMSN CTRL 708 YL XMSN HOLD SW
203 BK CHASSIS DIAGNOSTIC 709 OR SENSOR POWER SUPPLY
204 BK OPR MON PANEL (SCRAPER) 710 GN XMSN SPEED PICKUP SIGNAL
207 BK STARTER DIAGNOSTIC 711 BR XMSN LEVER CODE 1
Basic Machine Circuits 712 WH XMSN LEVER CODE 2
301 BU STARTER NO. 1 SOL 713 OR XMSN LEVER CODE 3
302 OR STARTER NO. 1 RESISTOR TO DIAGNOSTIC 714 YL XMSN LEVER CODE 4
304 WH STARTER RLY NO. 1 OUTPUT 715 GN XMSN LEVER CODE 5
306 GN
STARTER RLY COIL TO NEUT START SW OR
KEY SW
716 BU XMSN LEVER CODE 6
307 OR
KEY SW TO NEUT START SW OR SENSOR
MODULE 0
720 PU XMSN BRAKE SW
308 YL MAIN POWER RLY COIL 721 BR XMSN GEAR CODE 1
310 PU START AID SW TO START AID SOL 722 WH XMSN GEAR CODE 2
311 WH START AID SOL TO TEMP SW 723 OR XMSN GEAR CODE 3
321 BR BCKP ALARM LAMP TRAVEL ALARM 724 YL XMSN GEAR CODE 4
322 GY WARNING HORN (FORWARD) 725 GN XMSN GEAR CODE 5
323 WH FUEL PUMP POWER 726 BU XMSN GEAR CODE 6
Monitoring Circuits 733 BR SWITCHING GEAR CODE 1 FRONT
403 GN ALTERNATOR (A) TERM. 734 WH SWITCHING GEAR CODE 2 FRONT
405 GY OPR MON OIL PRESS. (LO SETTING) 735 OR SWITCHING GEAR CODE 3 FRONT
406 PU OPR MON COOLANT TEMP 736 YL SWITCHING GEAR CODE 4 FRONT
407 PK OPR MON CONVERTER/RETARDER OIL TEMP 737 GN SWITCHING GEAR CODE 5 FRONT
408 WH OPR MON SYSTEM AIR PRESS. 738 BR SWITCHING GEAR CODE 1 REAR
409 OR OPR MON NEUT 739 WH SWITCHING GEAR CODE 2 REAR
410 WH OPR MON FAULT ALARM 740 OR SWITCHING GEAR CODE 3 REAR
411 PK OPR MON MASTER FAULT LAMP 741 YL SWITCHING GEAR CODE 4 REAR
412 BU
OPR MON COOL FLOW/DS2 APP SPEC)
(PIN 26) HEUI - ADEMII
742 GN SWITCHING GEAR CODE 5 REAR
413 BR OPR MON FUEL PRESS. 743 PU SWITCHING NEUT/RUN SW
415 GN OPR MON TEST SW 744 BU SWITCHING UP SOL
417 GY PRIMARY STER SW 745 GY SWITCHING DOWN SOL
419 YL OPR MON PARKING BRAKE 746 PK SWITCHING SYNCHRONIZE SOL
421 BU OPR MON FAULT LAMP (SCRAPER) 747 WH SWITCHING NO SYNCHRONIZE SOL
422 YL OPR MON WARNING HORN (SCRAPER) 781 PK AUGER BUFFER BOX TO NEUT START CONT
423 PU OPR MON TEST SW (SCRAPER) 787 WH AUGER BUFFER BOX
441 OR ENG COOLANT TEMP GAGE 892 BR START MOD RIGHT ( - ) PORT/CAT DATA LINK ( - )
444 BU CONVERTER/RETARDER OIL TEMP GAGE 893 GN START MOD RIGHT (+) PORT/CAT DATA LINK (+)
445 GN
CONVERTER/RETARDER OIL TEMP GAGE
(SCRAPER)
895 BR AUGER BUFFER BOX TO NEUT START CONT
450 YL TACH SENDER (+) 896 GN AUGER BUFFER BOX TO AEM RESISTOR
451 BR TACH SENDER ( - ) 916 BU SCRAPER XMSN GEAR CODE 6
470 PU CANE SW NEUT D996 PU XMSN CONT SERVICE SET
A417 WH OPR MON SCRAPER XMSN D997 YL XMSN CONT SERVICE CLEAR
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Backup C - 8 1 Solenoid - Start Aid (Tractor) A - 2 27
Alarm - Action (Tractor) D - 3 A Solenoid - Upshift (Tractor) A - 4 30
Alternator - Tractor B - 2 3 Switch - Air Pressure (EMS) A - 3 31
Batteries - Tractor C - 1 5 Switch - Apron E - 8 B
Breaker - Alternator (Tractor) E - 5 B Switch - Auger F - 4 C
Breaker - Blower Motor E - 4 B Switch - Backup Alarm F - 6 B
Breaker - Dome and Panel Lamp E - 4 B Switch - Blower D - 3 A
Breaker - Head Lamp E - 4 B Switch - Differential Lock F - 8 33
Breaker - Key (Tractor) E - 4 B Switch - Disconnect (Tractor) C - 2 34
Buffer - Buffer Box E - 5 A Switch - Dome Lamp F - 7 C
Control - Neutral Start (Tractor) E - 4 A Switch - Door Dome Lamp F - 6 C
Control - Transmission (Tractor) D - 8 B
Switch - Engine Coolant Flow (EMS)
(Tractor)
A - 2 36
Dryer - Air (Tractor) A - 2 7
Switch - Engine Coolant Temp (EMS)
(Tractor)
B - 3 38
Fuses D - 4 B
Switch - Engine Coolant Temp(Start Aid)
(Tractor)
A - 2 40
Gauge - Engine Coolant Temperature E - 6 A Switch - Engine Oil Pressure (Tractor) A - 2 44
Gauge - Torque Converter Temperature
(Tractor)
E - 6 A Switch - Flood Lamp F - 3 A
Lamp - Action (Tractor) D - 3 A Switch - Fuel Pressure (Tractor) A - 2 46
Meter - Service (Tractor) E - 6 B Switch - Fuel Pump Pressure B - 3 47
Monitor - Operator (EMS) (Tractor) E - 3 A Switch - Head Lamp Dimmer F - 8 48
Motor - Fuel Pump B - 7 8 Switch - Key Start (Tractor) E - 5 B
Motor - Starter (Tractor) B - 3 10
Switch - Operator Monitor Test (EMS)
(Tractor)
D - 3 A
Motor - Washer (Front) E - 1 11 Switch - Panel Dimmer F - 3 A
Motor - Washer (Rear) E - 1 12 Switch - Parking Brake Pressure A - 4 49
Motor - Wiper (Front) F - 2 C Switch - Refrigerant Pressure F - 1 A
Motor - Wiper (Rear) F - 7 C Switch - Running Lamp F - 4 A
Motors - Blower F - 1 C Switch - Service Clear (Tractor) E - 7 B
Relay - Main E - 5 A Switch - Service Set (Tractor) F - 7 B
Relay - Start (Tractor) D - 5 B Switch - Shift Lever F - 6 B
Resistor - Blower Motor Speed F - 1 A Switch - Start Aid (Tractor) F - 5 A
Resistor - Panel Dimmer F - 3 A Switch - Steering Oil Flow A - 4 51
Resistor - Starter (Tractor) B - 3 10 Switch - Thermostat E - 1 A
Sender - Engine Coolant Temperature A - 3 14 Switch - Torque Converter Temp (Tractor) A - 3 53
Sender - Tachometer A - 2 15 Switch - Transmission (Tractor) A - 4 55
Sender - Torque Converter Temperature
(Tractor)
A - 3 17 Switch - Transmission Hold E - 7 56
Sender - Transmission Speed (Tractor) A - 5 19 Switch - Wiper (Front) F - 3 A
Solenoid - Air Conditioner Clutch B - 2 20 Switch - Wiper (Rear) F - 3 A
Solenoid - Apron E - 8 21 Tachometer (Tractor) D - 2 A
Solenoid - Differential Lock F - 8 22
Solenoid - Downshift (Tractor) A - 4 24
Solenoid Forward Horn F - 8 25
Machine locations are repeated for components located close together.
A = Components In Operator Compartment - Front Dash
B = Components In Operator Compartment - Right Console
C = Components In Operator Compartment
Connector Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
D - 8W - 7410
J - 8W - 7405
C - 4
D - 8W - 7410
NN - 8X - 4753
D - 1
B
D - 8W - 7410
Transmission Control
D - 8 B
BBB - 113 - 1065
ECAP Connector (Transmission)
(Tractor)
F - 8
25 Contacts
D - 8W - 7410
G - 115 - 1817
C - 2 8 Contacts A
B - 8X - 1156
Buffer Box
E - 4
D - 8W - 7410
Diagnostic Connector (Tractor)
E - 5
D - BW - 7410
NN - 8X - 4753
D - 1
D - 8W - 7410
Operator Monitor
E - 3
F - 8C - 4764
NN - 8X - 4753
E - 1
14 Contacts
D - 8W - 7410
Z - 8W - 2179
E - 6
J - 8W - 7405
R - 6G - 9728
C - 6
H - 8W - 7409
J - 8W - 7405
B - 5
R - 6G - 9728
S - 6G - 9834
C - 6
H - 8W - 7409
Y - 7T - 3418
B - 5
S - 6G - 9834
T - 6G - 9836
C - 7
*
V - 7T - 3418
Transmission Switch (Tractor)
B - 4 6 Contacts
T - 6G - 9836
U - 8W - 3493
C - 7
B
Z - 8W - 2179
Shift Lever Switch
F - 6 5 Contacts
E - 6G - 6696
G - 11 5 - 1 817
B - 2
B
BBB - 113 - 1065
Transmission Control (Tractor)
E - 7
C
A - 8W - 4636
Wiper Motor (Front)
F - 2
A
B - 8X - 1156
Neutral Start Control (Tractor)
E - 3
C
A - 8W - 4636
Wiper Motor (Rear)
F - 7
A
D - 8W - 7410
B - 8X - 1156
E - 3
D - 8W - 7410
PP - 5T - 1779
E - 7
Machine locations are repeated for connectors located close together.
* = Connector is located at the component.
A = Connector is located in the operator compartment - Front Dash.
B = Connector is located in the operator compartment - Right Console.
C = Connector is located in the operator compartment.
9 Contacts
7 Contacts
4 Contacts
37 Contacts
20 Contacts
10 Contacts
9 Contacts
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
7N-9560 Converter Oil Temperature (EMS)
129.4 ± 2.8°C
(265 ± 5°F)
118.3°C MIN
(245°F MIN)
Normally Closed
7N-9785 Coolant Temperature (EMS)
107.2 ± 2.8°C
(225 ± 5°F)
91 .0°C MIN
(1 96°F MIN)
Normally Closed
8N-1693 Coolant Temperature (Start Aid)
37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80°F MIN)
Normally Closed
6T-7663 Engine Oil pressure
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10 ± 3.0 psi)
Normally Open
8T-9792
Parking Brake Pressure (EMS)
Brake Air Pressure (Tractor)
517 ± 35 kPa
(75.0 ± 5.0 psi)
448 ± 35 kPa
(65.0 ± 5.0 psi)
Pins 1-2 (N.O.)
Pins 1-3 (N.C.)
8T-9815 Service/Retarder Brake Pressure
93 ± 20.8 kPa
(13.5 ± 3.0 psi)
68.9 ± 20.8 kPa
(10.0 ± 3.0 psi)
Normally Closed
9W-3187 Fuel Pressure (EMS)
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10.0 ± 3.0 psi)
Normally Closed
7T-2078 Primary Steering Flow
25 l/mm MAX ¹
(6.6 gal/mm MAX)
12.1 l/mm MAX ¹
(3.2 gal/mm MAX)
Normally Open
9W-2343 Engine Coolant Flow (EMS)
362 ± 29 mN applied at top rivet
(1.3 ± .1 oz)
303 mN MIN
(1.1 oz MIN)
Normally Open
¹ Force applied at 38.1 mm (1.5in) from mounting face.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
9G-1950 Resistor - Blower Motor Speed Overall 2.0 ± .1; Tap 1.0 ± .05
3T-3123 Resistor - Panel Dimmer 25 ± .3
6T-2217 Resistor - Starter/Diagnostic Conn 150 ± 7.5
102-0347 Solenoid - A/C Clutch 14.4 ± 0.6
7N-9719 Solenoid - Apron, Diff Lock 68
7X-1120 Solenoid - Downshift, Upshift, Sync 33.70
7T-9074 Solenoid - Forward I-torn 55.2 ± 5.8
7N7259 Solenoid - Start Aid 6.00
¹ At room temperature unless otherwise noted.
A
3
5
8
10
11
12
14
15
B
C
1
17
19
20
21
22
24
25
27
30
31
33
34
36
38
7
40
42
44
46
47
48
49
51
53
55
56
A
3
5
10
11
12
14
15
B
C
17
19
20
21
22
24
25
27
30
31
33
34
36
38
7
40
42
44
46
47
48
49
51
53
55
56
8
1
1
4
5
6
7
8
9
10
15
16
17
20
22
23
24
25
26
28
29
30
33
34
1 4
5
6
7
8
9
10
15
16
17
20
22
23
24
25
26
28
29
30
33
34
Machine Harness Connector And Component Locations
D31234
D31237
CAT
CAT
CATERPILLAR
1
4
6
7
15
34
17
33
30
29
28
25
24
26
23
16
(NOTE B)
202-BK
202-BK
10
9
4
3
26
25
24
23
22
21
NOTE C: FUEL PUMP, SWITCH & FUSE ARE CSM ONLY
L27
L31
L35
L53
L53
L30
L30
L31
L55
L55
L55
L29
L29
L29
L51
L51
L25
L25
L17
L17
L52
L52
L24
L24
TRACTOR TRANS
ECAP CONNECTOR
9W-1951
BBB
126-PK
202-BK
893-GN
892-BR
200-BK
200-BK
J
NN
NN
NN
Z
D996-PU
D997-YL
NN
PP
Z
PP
PP
202-BK
BBB
200-BK
200-BK
601-GY
601-GY
601-GY
200-BK
VV
VV
708-YL
202-BK
3
2
BBB
BBB
BBB
BBB
1
2
J
NN
EPTC II
TRANSMISSION
CONTROL
3E-9233
HOLD SW
8D-2676
REAR WIPER
6T-6216
ID CODE 0
ID CODE 1
ID CODE 2
ID CODE 3
+10V
GND VERIFY
GND VERIFY
717-BR
FORWARD HORN
SOLENOID
7T-9074
GEAR 1
FRONT GR 1
FRONT GR 2
FRONT GR 3
FRONT GR 4
FRONT GR 5
XMSN SP
717-BR
717-BR
165-YL
200-BK
J
VV
APRON
SW
2G-3970
119-PK
126-PK
119-PK
200-BK
165-YL 165-YL
165-YL
717-BR
2
1
WHBK
GN
GY
BR
OR
4
2
3
1
H
L
MOTOR
T
D
HEAD LAMP
DIMMER SW
2H-1855
OPERATOR STATION
OPERATOR STATION
OPERATOR STATION
27
37
36
30
29
5
D
PP
DIFFERENTIAL
LOCK SOLENOID
7N-9719
200-BK
321-BR
610-OR-14
611-PU-14
165-YL
APRON
SOLENOID
7N-9719
16
DOME
LAMP
7X-6398
DOME
LAMP SW
8D-2676
DIFFERENTIAL
LOCK SW
3T-3132
LEVER 5
LEVER 4
LEVER 3
LEVER 2
LEVER 1
HOLD SW
GROUND
DOWN SOL
UP SOL
GEAR 5
GEAR 4
GEAR 3
GEAR 2
+ BATTERY
15
14
13
12
11
19
18
17
20
6
7
8
2
28
35
34
33
32
31
1
322-GY
602-WH
200-BK
322-GY
165-YL
610-OR-14
611-PU-14
602-WH
200-BK
103-YL
602-WH
1
2
3
4
601-GY
470-PU
601-GY
200-BK
103-YL
470-PU
202-BK
716-BU
708-YL
202-BK
602-WH
710-GN
709-OR
704-GY
703-BU
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
202-BK
737-GN
736-YL
735-OR
734-WH
733-BR
715-GN
714-YL
713-OR
712-WH
711-BR
505-BU
504-YL
503-BR
505-BU
504-YL
503-BR
202-BK
BAT
A
SERVICE SET SW
9D-3721
SERVICE CLEAR SW
9D-3721
D997-YL
202-BK
D997-YL
D996-PU
D996-PU
200-BK
324-BU
324-BU
A
B
C
D
E
F
G
H
J
893-GN
892-BR
1
2
3
4
5
6
7
8
9
10
START RELAY
BU ALARM
NEUT OUT 1
NEUT OUT 2
KEY SW
SET SW.
CLEAR SW.
SERV GND
DATA LINK
DATA LINK
AIR
CONDITIONER
CLUTCH
SOLENOID
102-0347
1
2
SS
CC
L15
L14
L20
L19
L23
L4
L4
L4
L4
L56
L56
L56
L3
L3
L3
L3
L2
L2
L2
L2
L1
L1
L1
AAA
AAA
G
G
G
G
G
G
G
G
G
E
E
E
E
BK-00
RD-00
POS NEG
12V BATTERY
3T-5760
3
FUEL
PUMP SW
6T-7663
NOTE D
323-WH
125-OR
4
2
OPERATOR STATION
JJ
610-OR-14
611-PU-14
405-GY
E
407-PK
YY
G
G
G
DD
1
522-WH-14
513-OR-14
2
X
403-GN
207-BK
200-BK-8
109-OR-4
3
1
302-OR
311-WH
D
611-PU-14
610-OR-14
310-PU
412-BU
403-GN
201-BK
413-BR
405-GY
407-PK
406-PU
513-OR-14
451-BR
450-YL
441-OR
444-BU
101-RD-4
304-WH-8
310-PU
2
1
G
BU
RD
BK
125-OR
323-WH
408-WH
201-BK
DD
BK-00
CC
BB
408-WH
TACHOMETER
SENDER
7T-6945
DISCONNECT SW
7N-0718
G
FUEL SW
9W-3187
LO BEAM
HEAD LAMP
9W-0051
LO BEAM
HEAD LAMP
9W-0051
ALTERNATOR
8N-0999
ENGINE OIL SW
6T-7663
COOLANT SW
9W-2343
G
G
AIR SW
8T-9792
X
1
2
201-BK
408-WH
408-WH
408-WH
RESISTOR
6T-2217
HI BEAM
HEAD LAMP
9W-0052
HI BEAM
HEAD LAMP
9W-0052
T
BK-4
STARTER
3T-8967
YY
T
CONVERTER SENDER
(TRACTOR)
6N-5926
CONVERTER SW
(TRACTOR)
7N-9560
413-BR
12V BATTERY
3T-5760
NEGPOS
301-BU
WW
BK-00
302-OR
2
1
304-WH-8
G S
MTRBAT
MOTOR
BK-00
207-BK
RD-00
101-RD-4
200-BK-8
200-BK
200-BK
200-BK
HH
GG
SS
TO
FRAME
AUX START
RECEPTACLE
BK-00
RD-00
BK-00
BK-6
TO ENG
BLOCK
COOLANT SW
8N-1693
451-BR
450-YL
201-BK
109-OR-4
207-BK
START AID
SOLENOID
7N-7259
COOLANT SENDER
6N-5926
COOLANT SW
7N-9785
200-BK-8
109-OR-4 19
24
G
G
203-BK
403-GN
BK-18
BK-18
BK
BK
POS
NEG
12V BATTERY
3T-5760
513-OR-14
451-BR
450-YL
441-OR
444-BU
9
15
16
17
14
21
25
G
G
J G
BB
CC
E
EG
2
1
2
1
2
1
AIR DRYER
6G-9970
407-PK
406-PU
441-OR
444-BU
311-WH
412-BU
122-BU
311-WH
310-PU
RD-00
BK-00
BK-00
200-BK
G
201-BK
201-BK
201-BK
201-BK
201-BK
311-WH
611-PU-14
610-OR-14
310-PU
7
13
611-PU-14
610-OR-14
1
5
4
2
3
12V BATTERY
3T-5760
NEG
POS
RD-00
BK-00
11
18
8
22
1
20
6
23
5
4
2
3
12
10
412-BU
403-GN
201-BK
413-BR
405-GY
407-PK
406-PU
101-RD-4
304-WH-8
302-OR
AAA
BK-16
BK-16
125-OR
323-WH
G
JJ
323-WH
122-BU
125-OR
122-BU
310-PU
311-WH
DD
122-BU
T
T
522-WH-14522-WH-14
ALT
+
R
T
T
200-BK
323-WH
321-BR
121-YL
BK/PK-14
BK-14
W
ST
TU
QQ
BACKUP
ALARM
3T-1815
6
3
5
4
1
2
6
3
5
4
1
2
321-BR
121-YL
2
1
201-BK201-BK
414-PK
L5
L5
L5
L32
L32
L32
L32
L35
L25
L24
L28
L13
H
AAS
414-PK
201-BK
608-GN
121-YL
321-BR
323-WH
200-BK 6
3
5
4
1
2
7
S R
2
1
AA
165-YL165-YL
323-WH
200-BK
1
2
7
6
5
4
3
PARKING
BRAKE SW
8T-9792
201-BK
419-YL
709-OR
710-GN
704-GY
721-BR
722-WH
723-OR
724-YL
725-GN
201-BK
126-PK
202-BK
737-GN
736-YL
735-OR
734-WH
733-BR
408-WH
710-GN
704-GY
726-BU
703-BU
703-BU
202-BK
19
37
OPERATOR STATION
709-OR
35
34
33
32
31
30
29
27
20
18
16
11
5
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR721-BR
419-YL
722-WH
165-YL
723-OR
724-YL
725-GN
726-BU
709-OR
202-BK
703-BU
704-GY
710-GN
1
2
10
9
28
36
6
D
710-GN
21
22
23
24
25
26
9
10
2
3
4
15
12
8
13
1
7
14
17
321-BR
200-BK
721-BR
722-WH
723-OR
724-YL
725-GN
709-OR
202-BK
704-GY
122-BU
121-YL
201-BK
417-GY
125-OR
608-GN
7
BU
RD
BK
6
H
5
200-BK
2
1
BK
BK
U
4
3
200-BK
323-WH
321-BR
121-YL
BOWL
FLOOD LAMP
7T-9094
2
JR
608-GN
608-GN
1
J
3
FUEL PUMP
1W-4279
(NOTE C)
MOTOR
201-BK
414-PK
7
2
1
4
5
3
6
202-BK
8
J
TRANSMISSION
SPEED SENDER
3E-6955
GROUND
SIGNAL
+V
C
B
A
1
2
DOWN SHIFT
SOLENOID
7X-1120
UP SHIFT
SOLENOID
7X-1120
1
10
9
STEERING SW
7T-2078
TRANSMISSION SW
(TRACTOR)
6V-5828
BU-18
BK-18
GN-18
YL-18
OR-18
WH-18
BR-18
I
H
J
F
G
E
D
C
B
A 8
7
6
5
4
3
2
GND VERIFY
GROUND
GEAR 5
GEAR 4
GEAR 3
GEAR 2
GEAR 1
Y
Y
H
TRANSMISSION
TRANSMISSION
TRANSMISSION
J
H
726-BU
2
1
2
1
710-GN
419-YL
608-GN
323-WH
323-WH
CUTTING
EDGE
FLOOD
LAMP
7T-9094
122-BU
BK-16
BK-16
710-GN
JJ
K K
K
HHH
J
608-GN 608-GN
2
1
202-BK
202-BK
202-BK
709-OR
703-BU
704-GY
417-GY
201-BK
417-GY
201-BK
121-YL
125-OR
200-BK
321-BR
704-GY
703-BU
202-BK
709-OR
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
408-WH
1
2
1
2
703-BU
W/O STEERING
SWITCH CONNECT
PLUG J TO
RECEPTACLE J
L35
L24
L52
L25
L53
L29
L51
L27
L27 L27
L50
L50
L50
L25
L26
L24
L28 L28
L28
L22
L22
L22
L21
L21
L21
L21
L57
L20
L20
L20
L6
L19
L19
L23
L23
L13
L18
L18
NN
310-PU
109-OR
126-PK
126-PK
112-PU-10
308-YL
101-RD
200-BK
D
112-PU-14
D
D
D
D
D
200-BK
D
D
D
D
D
D
D
D
D
D
C
NN
B
LL
LL
D
D
D
D
D
D D
D
D
D
D
D
D
D
D
BASE
7G-9730
PANEL
LAMP
7N-5876
601-GY
601-GY
D
200-BK
D
D
D
D
D
PP
PP
PP
PP
200-BK
200-BK
200-BK
123-WH
200-BK
200-BK
200-BK
123-WH
165-YL
AUGER
203-BK
109-OR-8
8
7
6
200-BK
200-BK
5
1
4
3
B
B
B
LLD
2
3
1
114-GN
308-YL
102-BU-14
308-YL
D
200-BK
200-BK
124-GN-14
126-PK
306-GN
307-OR
1
2
AUGER SW
5V-8690
BK
RD/GN
610-OR-14
787-WH
165-YL
1
2
2
1
BUFFER BOX
7X-1193
896-GN
787-WH
2
CONV TEMP
(TRACTOR)
4W-0485
200-BK
321-BR
COOLANT
TEMP GAGE
4W-0483
DOOR DOME
LAMP SW
3T-3133
PANEL
LAMP
7N-5876
LEVER 1
LEVER 2
LEVER 3
LEVER 4
LEVER 5
NEUTRAL
GROUND
GND VERIFY
SHIFT
LEVER SW
9W-0681
3
4
5
8
9
10
2
1
6
7
N/C
N/OC
200-BK
403-GN
200-BK
126-PK
SERVICE METER
6T-7337
200-BK
200-BK
321-BR
126-PK
200-BK
14
13
12
11
601-GY
601-GY
123-WH
123-WH
441-OR
444-BU
200-BK
IGN
SEND
GRD
IGN
SEND
GRD
200-BK
321-BR
601-GY
200-BK
602-WH
895-BR
200-BK
601-GY
200-BK
BASE
7G-9730
200-BK
LAMP
5D-0019
LAMP
5D-0019
D
Z
Z
BACKUP
ALARM SW
6G-4195
103-YL
712-WH-18
713-OR-18
714-YL-18
715-GN-18
470-PU-18
202-BK-18
716-BU-18
444-BU
441-OR
403-GN
716-BU
202-BK
470-PU
715-GN
714-YL
713-OR
712-WH
711-BR
6
9
7
5
4
3
2
1
8
10
711-BR-18
321-BR
200-BK
781-PK
GROUND
-
+
BU-18
GY-18
PU-18
YL-18
OR-18
BK-18
WH-18
PK-18
AUGER SOL
AUGER SW
NEUT/START
NEUT/START
307-OR
307-OR
MAIN
RELAY
3T-0376
ALT
BREAKER
9S-4693
80
203-BK
FORWARD
HORN SW
3T-2357
FUSE
3K-8782
DIAGNOSTIC CONNECTOR
304-WH
101-RD
101-RD
112-PU-8
KEY
BREAKER
9G-9487
OPERATOR MONITOR
20
19
18
17
16
15
14
13
DOME & PANEL
LAMP BREAKER
9G-9882
HEAD LAMP
BREAKER
3T-2662
BLOWER MOT
BREAKER
6N-8589
614-PU
126-PK
200-BK
304-WH-8 306-GN
200-BK
322-GY
610-OR-14
611-PU-14
602-WH
200-BK
165-YL
322-GY
FUSE BLOCK
9G-0747
103-YL
103-YL
START
RELAY
9F-3099
112-PU-10
109-OR-8
109-OR-4
101-RD
101-RD-12
BACKUP ALARM
AIR DRYER
15
15
10
D
KEY
START SW
9G-7641
RUNNING
LAMP SW
7N-8005
START AID SW
3T-3453
10
6
12
8
5
4
9
1
11
10
7
3
101-RD-4
101-RD
307-OR
103-YL
101-RD-12
114-GN
112-PU-14
308-YL
105-BR
102-BU-14
310-PU
101-RD-4
109-OR-4
304-WH-8
307-OR
112-PU
308-YL
304-WH
109-OR
105-BR
311-WH
310-PU
302-OR
207-BK
FORWARD HORN
FRONT WIPER
TRANSMISSION
ECAP
10A
10A
10A
10A
10A
10A
118-GY
123-WH
114-GN
113-OR
308-YL
102-BU-14
119-PK
202-BK
ST
ON
OFF
B
S
C
R
D
123-WH
200-BK
123-WH
601-GY
101-RD
101-RD
200-BK
SOLENOIDS
10A
121-YL
122-BU
708-YL
708-YL
FUSE HOLDER
2S-3747
126-PK
126-PK
CCC
202-BK
123-WH
165-YL
10A
FLOODS & GAGES
REAR WIPER
125-OR
FUEL PUMP (NOTE C)
10A
10A
5 4
2 1
L6
L6
L6
L6
L6
L15
L15
L10
L10
L17
L17
L17L17
L13
L18
L18
L18
L52
L18
L18
L23
L19
L20
L13
L57
470-PU
601-GY
NN
NN
451-BR
450-YL
200-BK
202-BK
L15
L15
L15
L13
L13
L13
L57
L57
L8
L8
L8
L7 L7
L7L7
L11
L11
L11
L9
L9
L9 L9
L10
L10
L14
L14
L20
L19
L23
L52
D
D
D
D
D
D
D
D
D
D
D
9
1
2
8
3
7
D
A
A
6
5
A
A
A
A
A
4
D
D
D
D
F
F
F
F F
FF
NN
NN
D
D
D
6
8
A
D
2
1
7
5
9
4
3
4
3
6
7
2
1
5
RD
200-BK
D B
123-WH
200-BK
165-YL
200-BK
3
2
B
470-PU
781-PK
200-BK
BUFFER
LAMP
5D-0019
610-OR-14
515-GY-14
REAR
WASHER
7T-8891
FRONT WASHER
7T-8891
TACHOMETER
8T-9711
BASE
3T-0304
6
THERMOSTAT SW
7T-9277
RESISTOR
9G-1950
516-GN-14
REAR
WIPER SW
3T-6655
FRONT
WIPER SW
3T-6655
200-BK
200-BK
203-BK
601-GY
RD
(TRACTOR)
9G-9813
OPERATOR
3T-9100
-+B
SIG
200-BK-8
REFRIGERANT SW
9D-6888
NOTE A
PANEL DIMMER
RESISTOR
3T-3123
PANEL
DIMMER SW
4D-1836
PANEL LAMP
7N-5876
PANEL
LAMP
7N-5876
BLOWER SW
6P-3236
OR
GRN
BLU
BLK
RED
SUPPL STER
FRONT GR 3
CV/RTD TEMP
AIR PR
RD
601-GY
895-BR
126-PK
GN-18
PK-18
GY-18
BU-18
YL-18
OR-18
9
8
601-GY
ALARM
601-GY
600-BR
601-GY
FRONT
WIPER
6T-6216
A
T
LAMP (TRACTOR)
7N-1996
MOTOR
L
H
118-GY
1
3
2
4
OR
BR
GY
GN
119-PK
B
W
P
L
H
B
B
W
P
L
H
B
PARK BK
NEUTRAL
OPERATOR STATION
7
NN
NN
NND
D
6
3
200-BK
202-BK
200-BK
506-PU
506-PU
507-WH
322-GY
507-WH
470-PU
608-GN
310-PU
200-BK-14
515-GY-14
517-BU-14
513-OR-14
521-YL-14
123-WH
602-WH
165-YL
322-GY
507-WH
506-PU
200-BK
610-OR-14
611-PU-14
602-WH
D
200-BK
BUFFER
506-PU
200-BK
507-WH
506-PU
200-KB
507-WH
BR-18
WH-18
+ BATTERY
START SW
GROUND
START RELAY
515-GY-14
517-BU-14
3
2
4
1
OR-18
PU-18
BK-18
406-PU
409-OR 9
16
20
BASE
9D-8047
BASE
9D-8047
GN-18
2
WH/RD-14
WH/RD-14
BK-14
BK-14
BK
200-BK-14
415-GN
415-GN
410-WH
1
3
2 1
TEST
LAMP
+ BATTERY
2
1
2
1
2
1
5
3
7
2
1
2
1
D
F
FF
D
D
FLOOD LAMP SW
8D-2676
BLOWER
9G-8697
BLOWER
9G-8693
521-YL-14
411-PK
119-PK
118-GY
517-BU-14
515-GY-14
200-BK-14
124-GN-14
608-GN
502-OR
501-GN
500-BR
113-OR
123-WH
308-YL
114-GN
102-BU-14
118-GY
119-PK
505-BU
504-YL
503-BR
1
200-BK-14
515-GY-14
517-BU-14
521-YL-14
415-GN
411-PK
202-BK
201-BK
410-WH
417-GY
5
407-PK
405-GY
413-BR
412-BU
403-GN
201-BK
408-WH
419-YL
113-OR
NEUTRAL/START
CONTROL
7X-1362
601-GY
601-GY
200-BK
MOTOR MOTOR
MOTOR
T
601-GY
201-BK
201-BK
201-BK
GROUND
ALTERNATOR
ENG OIL PR
FUEL PR
COOL TEMP
COOL FLOW
18
14
4
2
7
5
13
601-GY
6
12
3
201-BK
15
11
10
19
203-BK
201-BK
201-BK
201-BK
201-BK
201-BK
411-PK
601-GY
601-GY
601-GY
601-GY
200-BK
200-BK
200-BK
200-BK
200-BK-14
200-BK
200-BK-14
515-GY-14
200-BK
200-BK
506-PU
507-WH
200-BK
200-BK
OPERATOR STATION
17
8
201-BK
4
522-WH-14
516-GN-14
522-WH-14
513-OR-14
409-OR
610-OR-14
516-GN-14
307-OR
306-GN
OPR PANEL
516-GN-14
3
4
5
2
200-BK
200-BK
200-BK
1
200-BK
200-BK
200-BK-8
ACTION ALARM
ACTION
MONITOR
TEST SW
7N-8001
OPERATPR
MONITOR
D
E
F
78
7
A
B
C
8
6 5 4
6 5 4
3 2
1
D
E
F
2
3
1
A
B
C
C-700113-1065
00 C-65T-2360AA
B-4
C-6
03
046G-9728R
00 E-48X-1156B
00
01
02
00
00
01
00
03
07
00
02
02
02
00
00
03
03
00
02
00
04
03
01
01
00
01
THIS SCHEMATIC IS FOR THE 651E WTS ( 9X-4945 CHG 02 )
8W-3493
8W-7405
AND XMSN SHIFTER IN NEUTRAL
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF,
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
8C-4764
8W-4636
03
NOTE
CABLE AS.
6G-9841
8X-4753
115-1817
8W-7410
8W-2179
03
8X-4863
8X-4758
9G-0549
7T-3418
NOTE B: NORMALLY CLOSED WHEN DOOR OPEN
2W-8715
01
A-2
8W-2208
YY
AAA
C-2
4N-6579
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
D-85T-3457VV
5T-5529WW
A-2
A-3
5T-9895
C-1
C-2
C-1
A-3
C-9
E-7
D-1
E-6
B-4
A-2
A-8
C-7
C-7
C-7
B-4
C-5
C-3
E-1
B-2
C-5
F-2
LOC
SS
9G-6259
5T-1779
QQ
PP
NN
WIRE AS.
9F-4337HH
2G-4177GG
HARNESS AS.
PART NO.IDENT
6G-9836
6G-9834
E-4
6G-9768
LL
DD
CC
BB
Z
Y
X
W
U
T
S
K
6G-6696
J
G
F
E
D
A
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
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
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
B-3
8W-7408
CHG
B-26G-5258JJ
8W-7409
CIRCUIT GROUPING
DESIGNATION
L#
H
BBB
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.
EMS CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
MOTOR
2
UW
2
1
D28096