INTERACTIVE SCHEMATIC

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 SENR1339
March 1996

824G Wheel Tractor,

825G Soil Compactor and
826G Landfill Compactor
Electrical System
824G: 825G: 826G:
4SN1-UP 6RN1-UP 7LN1-UP

© 1996 Caterpillar, All Rights Reserved Printed in U.S.A.

COMPONENT LOCATION
Schematic Machine Schematic Machine
Component Component
Location Location Location Location
Actuator - Blend Door H-11 20 Sensor - Coolant Temperature H-15 18
Actuator - Water Valve H-11 20 Sensor - Engine Speed G-15 15
Alarm - Action E-11 A Sensor - Hydraulic Temperature A-2 23
Alarm - Backup D-14 1 Sensor - Lift Lever Position F-7 D
Alternator C-15 5 Sensor - Tilt Lever Position F-7 D
Batteries B-15 4 Sensor - Transmission Oil Temp H-15 15
Breaker - Alternator (8OA) I-15 11 Sensor - Trans Output Speed E-13 20
Breaker - Blower Motors (15A) E-11 A Solenoid - A/C Clutch C-15 6
Breaker - Engine Shutdown (1 5A) I-15 11 Solenoid - Engine Shutdown C-15 14
Breaker - Hood Actuator (30A) I-15 11 Solenoid - Lift (Prop) E-1 29
Breaker - Main (BOA) I-15 11 Solenoid - Lift Lever Kickout Detent F-7 D
Breaker - Running Lamp (1 5A) I-15 11 Solenoid - Lower (Prop) E-1 21
Breaker - Seat Air Comp/Htr (1 5A) E-11 A Solenoid - On/Off Pilot Pressure E-2 28
Control - Dimmer E-11 C Solenoid - Reversing Fan E-13 3
Control - Engine Shutdown I-13 11 Solenoid - Start Aid C-14 11
Control - Implement I-7 A Solenoid - Tilt Back (Prop) E-1 28
Control - Transmission I-11 A Solenoids - Transmission Valve F-14 18
Control - Water Valve/Blender Door G-11 20 Suppressor C-15 9
Converter - Voltage H-5 B Switch - A/C High-Low Pressure C-15 5
Fuses D-11, I-15 A Switch - Blower B-9 C
Gauge - Quad Module F-4 E Switch - Brake G-1 24
Gauge - Tach/Speedometer Module E-4 E Switch - Crankcase Guard Actuator E-15 8
Ground - Cab A-3 26 Switch - Disconnect B-15 10
Ground - Cab E-10 21 Switch - Engine Oil Pressure G-15 15
Ground - Cab H-8, H-10 22 Switch - Forward Horn G-4 E
Ground - Cab I-9, I-10 A Switch - Front Intermittent Wiper B-4 C
Ground - Chassis H-13 11 Switch - Gear Select B-6 C
Ground - Frame B-15 10 Switch - Hazard Lamp F-4 B
Lamp - Action D-4 E Switch - Hood Actuator F-15 8
Lamp - Auto Ride Control F-4 E Switch - Hydraulic Oil Level A-2 23
Lamp - Neutralizer Override D-4 E Switch - Implement Function Select F-9 D
Lamp- Ride Control F-4 E Switch - Implement Lock Out F-8 D
Monitor - Caterpillar Monitoring System E-5 E Switch - Key Start D-5 E
Motor - Blower G-10 20 Switch - Meter Select G-5 E
Motor - Crankcase Guard Actuator E-14 16 Switch - Neutralizer C-1 25
Motor - Front Washer A-15 22 Switch - Park Brake G-2 24
Motor - Front Wiper D-5 E Switch - Rear Wiper C-9 C
Motor - Hood Actuactor F-15 B Switch - Reversing Fan C-7 B
Motor - Rear Wiper F-10 20 Switch - Running Lamps C-8 C
Motor-Starter C-15 17 Switch - Selector A/C-Heater B-9 C
Motor - Trans Guard Actuator A-2 22 Switch - Start Aid G-5 E
Potentiometer - Temp Selector B-9 C Switch - Start Aid Coolant Temp H-15 6
Relay - Cab Flood Lamp E-10 A Switch - Steering Pressure I-3 23
Relay - Main I-15 11 Switch - Stop Lamp C-1 26
Relay - Start C-15 11 Switch - Thermostat G-10 20
Relays - Hood Control I-13 11 Switch - Transmission Filter Press H-13 9
Resistor - Blower Speed G-10 20 Switch - Transmission Guard Actuator E-15 8
Resistor - Starter C-15 17 Switch - Trans Neutralizer Overide B-5 C
Sender - Fuel Level G-1 30 Switch - Transmission Shifter G-4 E
Machine locations are repeated for components located close together.
A = Components at fuse panel behind seat. C = Components in right headliner console. E = Components in dash.
B = Components in left headliner console. D = Components in console on right side of seat.
CONNECTOR LOCATION
Schematic Machine
Connector Number
Location Location
CONN 1 A-2 25
CONN 2 A-11 19
CONN 3 A-15 27
CONN 4 B-11 19
CONN 5 B-13 5
CONN 6 Aux. Start Receptacle B-15 10
CONN 7 C-2 28
CONN 8 C-2 28
CONN 9 C-11 19
CONN 10 C-14 14
CONN 11 C-15 9
CONN 12 D-3 28
CONN 13 D-8 19
CONN 14 D-12 19
CONN 15 D-13 1
CONN 16 D-14 2
CONN 17 E-3 28
CONN 18 E-6 E
CONN 19 E-12 19
CONN 20 E-12 19
CONN 21 E-14 3
CONN 22 E-15 1
CONN 23 F-2 26
CONN 24 F-2 26
CONN 25 F-12 19
CONN 26 F-13 18
CONN 27 G-4 E
CONN 28 G-4 E
CONN 29 ECAP Service Tool G-9 A
CONN 30 G-10 19
CONN 31 Harness Code H-9 A
CONN 32 Service Code for Switch Box H-9 A
CONN 33 H-14 11
CONN 34 H-14 11
CONN 35 Diagnostic Starting/Charging H-15 11
CONN 36 Implement Control Options I-7 A
CONN 37 Transmission Control Options I-10 19
Machine locations are repeated for connectors located close together.
A = Connectors at fuse panel behind seat.
B = Connectors in left headliner console.
C = Connectors in right headliner console.
D = Connectors in console on right side of seat.
E = Connectors in dash.
CID / MID / FMI
Component Identifiers (CID) Failure Mode Identifiers (FMI)
Caterpillar Monitoring System FMI No. Failure Description
CID Component 0 Data valid but above normal operational range.
0096 Fuel Level Sender 1 Data valid but below normal operational range.
0110 Engine Coolant Temperature Sensor 2 Data erratic, intermittent, or incorrect.
0177 Torque Converter Oil Temperature Sensor 3 Voltage above normal or shorted high.
0248 Data Link 4 Voltage below normal or shorted low.
0263 Sensor Power Supply 5 Current below normal or open circuit.
0271 Action Alarm
6 Current above normal or grounded circuit.
0324 Action Lamp
7 Mechanical system not responding properly.
0600 Hydraulic Oil Temperature Sensor
8 Abnormal frequency, pulse width, or period.
0819 Display Data Link
9 Abnormal update.
0821 Display Power Supply
10 Abnormal rate of change.
Transmission Control 11 Failure mode not identifiable.
CID Component
12 Bad device or component.
0070 Parking Brake Switch
13 Out of calibration.
0168 Electrical System Voltage
0190 Engine Speed Sensor The FMI is a diagnostic code that indicates what type of failure has occurred.
0248 CAT Data Link
0363 Ride Control Solenoid 1
0367 Ride Control Switch
0368 Transmission Auto/Manual Switch
0621 Downshift Switch
0622 Upshift Switch
0623 Directional Switch
0631 Transmission Clutch 1 Solenoid
0632 Transmission Clutch 2 Solenoid
0633 Transmission Clutch 3 Solenoid
0634 Transmission Clutch 4 Solenoid
0635 Transmission Clutch 5 Solenoid
0636 Transmission Clutch 6 Solenoid Monitoring System Modes
0638 Starter Solenoid Mode of Operation Mode Number
0671 Transmission Output Speed Sensor Normalr Mode 0
0687 Options ID Code Harness Code 1
Implement Control Numeric Readout 2
CID Component
Service 3
0168 Electrical System Voltage
0248 CAT Data Link Digital Tattletale 4
0270 Harness Code Units 5
0296 Transmission Control Calibration 7
0350 Lift Linkage Position Sensor
0352 Lift Lever Position Sensor
0353 Tilt Lever Position Sensor
0354 Raise Solenoid
0355 Lower Solenoid
0356 Dump Solenoid
0357 Rackback Solenoid
0358 Pilot Pressure Solenoid
0359 Raise Detent Electromagnet
0360 Lower Detent Electromagnet
0361 Rackback Detent Electromagnet
0365 Kickout Set Switch
0485 Engine Fan Reversing Solenoid
0486 Engine Fan Reversing Switch
0487 3rd Lever Position Sensor
0489 Implement Function Select Switch
0490 Implement Lockout Switch
0491 3rd Function Forward Solenoid
0492 3rd Function Rearward Solenoid
0496 5th Function Rearward Solenoid MODULE IDENTIFIER (MID)
0497 Tilt Right Solenoid MID No. Module
0498 Tilt Left Solenoid 30 Caterpillar Monitoring System
0596 Implement Control 81 Transmission Control
0687 Option ID Code 82 Implement Control
SPECIFICATIONS AND RELATED MANUALS

Related Electrical Service Manuals

Title Form Number
Alternator (100-5047):
Consist No. 100-5045 SENR4130
Consist No. 100-5046 SENR2082
Caterpillar Monitoring System SENR6717
Electronic Implement Control SENR5891
Electronic Transmission Control SENR5890
Starting And Charging Systems SENR2947
Starting Motor: (6V-5539)
Consist No. 6V-5540 SENR3536
Consist No. 6V-5582 SENR4975
Consist No. 106-8554 SENR3581

Off Machine Switch Specification

Part No. Function Actuate Deactuate Contact Position
38 ± 3°C 27°C MIN
3E-6425 Start Aid Coolant Temperature Normally Closed
(100.4 ± 5.4°F) (80.6°F MIN)
1200 kPa MAX 700 kPa MIN A to B: Normally Open
3E-6450 Steering Pressure
(175 psi MAX) (100 ± psi) A to C: Normally Closed
90 ± kPa MAX 70 ± 21 kPa A to B: Normally Open
3E-6455 Engine Oil Pressure
(13 ± 3.0 psi MAX) (10 ± 3 psi) A to C: Normally Closed
10700 kPa MAX 8960 ± 345 A to B: Normally Open
3E-7693 Brake Pressure
(1550 psi MAX) (1300 ± 50 psi) A to C: Normally Closed
10700 kPa MAX 8960 ± 345 kPa
3E-7693 Parking Brake Pressure Normally Open
(1550 psi MAX) (1300 ± 50 psi)
210 ± 70 kPa —
9X-7781 Transmission Filter Pressure Normally Open
(30 ± 10 psi) —
275 to 1750 kPa ¹ 69 kPa MIN
114-5333 A/C High-Low Pressure Normally Open ²
(40 to 255 psi) (10.0 psi MIN)
¹ With increasing pressure the closed condition can be maintained up to 2800 kPa (405 psi),
with decreasing pressure the closed condition can be maintained down to 170 kPa (25 psi).
² Contact position at the contacts of the harness connector.

Resistor, Sender and Solenoid Specifications

Part No. Component Description Resistance (Ohms)¹
9G-1 950 Resistor - Blower Speed Overall 2.0 ± .1; Tap 1.0 ± .05
3E-7842 Resistor - Starter/Diagnostic Connector 150.0 ± 7.5
121-31 74 Sender - Fuel Level Empty 95.5 ± .5; Full 2.5 ± .5
6V-2455 Sensor - Engine Speed 110-200
6V-2455 Sensor - Transmission Output Speed 110-200
102-0347 Solenoid - A/C Clutch 14.4 ± 0.6
110-6465 Solenoid - Engine Shutdown 5.12 ± .26
123-9038 Solenoid - Lift (Prop) 10.5 ± .3
3E-9366 Solenoid - Lift Lever Kickout Detent 144.8 ± 6.7
123-9038 Solenoid - Lower (Prop) 10.5 ± .3
112-8210 Solenoid - Pilot On/Off 20.1 ± 1.0
119-5021 Solenoid - Reversing Fan 10.5 ± .3
3E-6332 Solenoid - Start Aid 6
123-9038 Solenoid - Tilt Back (Prop) 10.5 ± .3
3E-3748 Solenoid - Transmission Valves 8.5
¹ At room temperature unless otherwise noted.
WIRE DESCRIPTION
Page 1 of 2
Wire Wire Wire Wire
Description Description
Number Color Number Color
Power Circuits Accessory Circuits (Continued)
101 RD Battery Positive + 515 GY Blower Motor (Hi)
102 BU Head Lamp 516 GN Blower Motor (Medium)
105 BR Key Switch 517 BU Blower Motor (Lo)
107 WH Engine Shutdown 521 YL A/C Sw to Refrigerant Sw
108 BU Auxiliary Circuits 522 WH A/C Clutch to Thermostat Sw
109 OR Alternator Output Positive + 536 WH Hazard Sw to Turn Signal Sw
112 PU Main Power Relay Output 537 GN Turn Signal Sw to Flasher
113 OR Caterpillar Mont Sys Display Bat+ 538 BR Hazard Indicator
114 GN Warning Horn - Forward A513 PK DC/DC Converter Memory Output
116 BR Auxiliary Circuit A523 PU Temperature Potentiometer Pos 1
118 GY Auxiliary Circuit A524 BR Temperature Potentiometer Pos 2
120 YL Auxiliary Circuit A525 GN Temperature Potentiometer Pos 3
124 GN A/C A526 PK Electronic Water Valve Actuator
127 OR Auxiliary Circuit A527 BU Electronic Water Valve Actuator
129 BU Auxiliary Circuit A538 OR Rear Window Defroster Element
130 GN Auxiliary Circuit A592 BU Blend Door Motor (A)
135 BU Auxiliary Circuit A593 OR Blend Door Motor (B)
138 GN Payload Monitor A594 WH Blend Door Position Feedback +
141 PK Auxiliary Circuit A595 GN Blend Door Position Feedback (Signal)
144 GN Auxiliary Circuit A596 YL Blend Door Position Feedback -
146 GY Auxiliary Circuit C529 GY Lift Pressure Sensor
150 OR Battery Positive + C530 BU Lift Position Sensor
158 BR Auxiliary Circuit Lighting Circuits
164 WH Transmission Control 8+ 603 PK Rotary Beacon
167 OR Auxiliary Circuit 604 OR Stop Lamp
175 PK Auxiliary Circuit 605 YL Turn Signal Lamp - Left
177 OR Main Breaker 606 GY Turn Signal Lamp - Right
188 WH Auxiliary Circuit 608 GN Flood Lamp - Rear
199 OR Auxiliary Circuit 610 OR Head Lamp Basic
Ground Circuits 611 PU Head Lamp - Hi
200 BK Main Chassis 614 PU Park/Tail/Dash Lamp
201 BK Caterpillar Monitoring System 615 YL Cab Flood Lamp/ROPS
202 BK Transmission Control 617 BR Tail/Position Lamp - Left
203 BK Chassis Diagnostic 619 GN Head Lamp - Low
207 BK Starter Diagnostic 661 GN Tachometer Lamp - Caterpillar Mont Sys
250 BK Payload Monitor-Customer Ground 662 YL Speedometer Lamp - Caterpillar Mont Sys
251 BK Payload Monitor- System Ground 663 GY Gage Lamps - Caterpillar Mont Sys
270 BK Caterpillar Mont Sys Harness Code 0 Control Circuits
271 BK Caterpillar Mont Sys Harness Code 1 710 GN Transmission Speed Pickup Signal
272 BK Caterpillar Mont Sys Harness Code 2 720 PU Neutralizer Sw
273 BK Caterpillar Mont Sys Harness Code 3 751 GN Trans Shift Sol No. 1 (Rev)
274 BK Caterpillar Mont Sys Harness Code 4 752 YL Trans Shift Sol No. 2 (Fwd)
275 BK Caterpillar Mont Sys Harness Code 5 754 BU Trans Shift Sol No. 3 (4th Gear)
276 BK Transmission Control Options Code 0 755 OR Trans Shift Sol No. 4 (3rd Gear)
277 BK Transmission Control Options Code 1 762 YL Bucket Positioner Solenoid
278 BK Transmission Control Options Code 2 E701 PK Auto Ride Control Sw
279 BK Transmission Control Options Code 3 E702 OR Auto Ride Control Sw
290 BK Caterpillar Monitoring System Service E707 GN + V Caterpillar Monitor System
291 BK Caterpillar Monitoring System Clear E708 PK Display Clock - Caterpillar Monitor Sys
299 BK Implement Control Ground E735 PU Sys Meter Select Sw - Caterpillar Mont Sys
A201 BK Implement Control Option Code 1 G750 BU Transmission Ctrl Forward Sw to Gnd
A201 BK Implement Control Option Code 2 G755 GY Transmission Ctrl Reverse Sw to Gnd
A203 BK Implement Control Option Code 3 G760 WH Transmission CtrI Speed 2 Sw to Gnd
A204 BK Implement Control Option Code 4 G761 YL Transmission Ctrl Speed 3 Sw to Gnd
A205 BK Implement Control Option Code 5 G762 BR Transmission CtrI Speed 4 Sw to Gnd
A219 BK Ground G763 PU Transmission CtrI Neutral Sw to Gnd
A272 BK Implement Control B - G764 PK Trans Ctrl Parking Brake Lvr Sw to Gnd
A273 BK Implement Control B - G766 GN Implement Ctrl Sw to Gnd (NO.)
Basic Machine Circuits G767 WH Implement Ctrl Sw to Gnd (N.C.)
301 BU Starter Solenoid G768 GN Transmission Ctrl Speed 1 Sw to Gnd
WIRE DESCRIPTION
Page 2 of 2
Wire Wire Wire Wire
Description Description
Number Color Number Color
Power Circuits Accessory Circuits (Continued)

302 OR Starter Resistor to Diagnostic H702 PU Implement CtrI Reversing Fan Sw (NO.)
304 WH Starter Relay Output H703 YL Implement CtrI Reversing Fan Sw (N.C.)
306 GN Transmission Control Starter Relay Coil H704 PK Implement CtrI Reversing Fan Sol
307 OR Key Switch Battery + H708 OR Implement CtrI Kickout Sw 1
308 YL Main Power Relay Coil H709 BU Implement CtrI Kickout Sw 2
310 PU Start Aid Sw to Start Aid Solenoid H710 PK Implement Ctrl Lift Lever Position
311 WH Start Aid Solenoid to Temp Sw H71 1 GN Implement CtrI Tilt Lever Position
321 BR Backup Alarm H713 PK Implement CtrI Lift Prop Sol
322 GY Warning Horn - Forward H714 OR Implement CtrI Lower Prop Lift Sol
326 PU Key Switch “C Terminal H71 5 PU Implement CtrI Lower Kickout Detent Sol
327 PK Shutdown Solenoid H71 6 WH Implement CtrI Solenoid Return
338 PK Flood Lamp Relay Coil H717 BR Implement CtrI Pilot Press Solenoid
373 GN Start Aid Switch to Timer H719 OR Implement CtrI Lift Kickout Detent Solenoid
397 OR Hood Raise Motor H720 BU Implement CtrI Bucket Positioner Solenoid
398 BU Hood Raise Motor H728 GN Trans Control Auto/Man Sw (3rd Gear)
A300 GN Hood Raise Relay Coil H729 WH Trans Control Auto/Man Sw (2nd Gear)
A301 WH Hood Raise Relay Coil 801 PK Auto Lube Solenoid
Monitoring Circuits 818 BR Serial Data - Transmit
403 GN Alternator “A” Terminal 819 GY Serial Data - Receive
405 GY Operator Monitor Engine Oil Press (Lo) 820 BU Transmit Key
410 WH Caterpillar Monitoring System Action Alarm 838 YL Front Guard Motor
411 PK Caterpillar Monitoring System Action Lamp 839 BU Front Guard Motor
417 GY Primary Steering Switch 897 GN Rear Guard Motor
419 YL Operator Monitor Parking Brake 898 PU Rear Guard Motor
426 BR Operator Monitor Transmission Oil Filter 900 PU Trans Shift Sol No. 5 (2nd Gear)
432 PK Operator Monitor Brake Oil Press 901 WH Trans Shift Sol No. 6 (1st Gear)
439 YL Lamp Indicator 910 YL Trans NeutraIizer Override Indicator
441 OR Engine Coolant Temp Gauge 944 OR Data Link +
442 GY Hydraulic System Temp Gauge 945 BR Data Link -
443 YL Transmission Temp Gauge 973 BR Transmission CtrI - Auto/Manual Sw 1
447 PK Fuel Level Gauge 975 WH Transmission - Solenoid Return
450 YL Transmission Control Engine Speed Signal 976 OR Ride Control Solenoid
Accessory Circuits 977 YL Transmission - Auto/Manual Sw 2
500 BR Wiper - Front (Park) E917 WH Implement Lockout Sw to Gnd (N.O.)
501 GN Wiper Front (Lo) E918 GN Implement Lockout Sw to Gnd (NC.)
502 OR Wiper - Front (Hi) E919 YL Aux Lower Proportional Solenoid
503 BR Wiper - Rear (Park) E920 BR Aux Lift Proportional Solenoid
504 YL Wiper - Rear (Lo) E921 RK Rackback Proportional Solenoid
505 BU Wiper - Rear (Hi) E922 GN Dump Proportional Solenoid
506 Pu Washer - Front E927 GN ETAC Test Mode Sw (NC.)
507 WH Washer - Rear E928 WH ETAC Test Mode Sw (NO.)
508 PU Radio Speaker - Left E955 OR WLPMS Keypad Data
509 WH Radio Speaker - Left (Common) E987 WH Trans Speed Signal Return
511 BR Radio Speaker- Right G939 PK Trans Control Engine Speed Sw Return
512 GN Radio Speaker - Right (Common) G942 OR Implement 3rd Lever Pos Sensor
512 GN Radio Speaker - Right (Common) G943 BU Implement Func Select Sw (NO.)
513 OR A/C Compressor/Refrigerant Press Sw G944 YL Implement Func Select Sw (NC.)
G947 WH Implement 4th Lever Pos Sensor
G948 BR Implement Detent Lo Sw (NO.)
G949 YL Implement Detent Lo Sw (NC.)
K933 GN Stick 2 Bypass Sol
 HARNESS and WIRE
Electrical Schematic Symbols
Symbols

Pressure Temperature Level Flow Circuit Breaker

Symbol Symbol Symbol Symbol Symbol

Symbols and Definitions

Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it.

Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has
screw terminals and a wire can be disconnected from it.

Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). No circle indicates that the wire cannot be
disconnected from the component.

Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine.

Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the
machine.

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
T
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.

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.

Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched 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.

Harness and Wire Symbols

Wire, Cable, or Harness Assembly Identification: Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
Includes Harness Identification Letters and Harness
Connector Serialization Codes (see sample).
Harness Connector Serialization Code: The "C" stands for
"Connector" and the number indicates which connector in the
harness (C1, C2, C3, ...).
AG-C4 L-C12
111-7898 3E-5179 L-C12
3E-5179
Part Number: for 1 Part Number: for
Connector Plug
Connector Receptacle
2

Plug Receptacle
Pin or Socket Number

5A
1 Deutsch connector: Typical representation
Component
of a Deutsch connector. The plug contains all Fuse (5 Amps) 9X-1123 Part Number
2 sockets and the receptacle contains all pins.
325-AG135 PK-14
1 Sure-Seal connector: Typical representation Harness identification code:
of a Sure-Seal connector. The plug and receptacle This example indicates wire group 325, Wire Gauge
2 contain both pins and sockets. wire 135 in harness "AG". Wire Color
 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
RELAY PANEL OPERATOR STATION OPERATOR STATION OPERATOR STATION
(11) HOOD ACTUATOR BKR
6N-9349 200-BK A300-GN
J J
101-RD-12 175-RD-12 J J 1 299-BK-18
30
J 175-RD-12 IMPLEMENT CONTROL CONFIGURATIONS 2
30 J

TRANSMISSION SPEED SIG

J J 87 (A) TRANSMISSION
107-RD-14 107-RD-14 175-RD-12 397-OR-12 3

TRANSMISSION SPD RTN

15 CONTROL (A) IMPLEMENT CONTROL FUNCTION SELECTOR SWITCH AUXILARY VALVES

PARK BRAKE SW (N/O)

PARK BRAKE SW (N/C)

200-BK-12 DESCRIPTION CODE PLUG P/N MODEL 4
(11) HOOD CONTROL

LEVER DETENT LO SW (N/O)

LEVER DETENT LO SW (N/C)

CLUTCH 3 SOL (4TH)
CLUTCH 4 SOL (3RD)
CLUTCH 5 SOL (2ND)
CLUTCH 6 SOL (1ST)

CLUTCH 1 SOL (REV)

CLUTCH 2 SOL (FWD)

AUTO/MAN SW (HIGH)

SW & SENSOR RETURN

SW & SENSOR RETURN

DOWNSHIFT SW (N/O)

DOWNSHIFT SW (N/C)
(11) ENGINE SHUTDOWN BKR (11) RUNNING LAMP BKR J 87A 121-9496 118-0518 (LOC E-9) (LOC E-1)

3RD FUNC LOWER PROP SOL

PILOT SUPPLY ON/OFF SOL

AUTOLUBE SOLENOID

RIDE CONTROL SW 2
RIDE CONTROL SW 1

AUTO/MAN SW (MED)
101-RD-14

RELAYS (QTY 2) 5

LIFT LINKAGE POS 500Hz

3RD FUNC LIFT PROP SOL

RACKBACK PROP SOLENOID

REV FAN RESET SW (N/O)

REV FAN RESET SW (N/C)

IMPL FUNC SEL SW (N/O)

IMPL FUNC SEL SW (N/C)
ENGINE SPEED RTN
ENGINE SPEED SIG

RIDE CONTROL SOL

UPSHIFT SW (N/C)
UPSHIFT SW (N/O)
6N-8589 3T-2662 JOY SITCK LEVER

SOLENOID RETURN

SOLENOID RETURN

CAT DATA LINK +

CAT DATA LINK -

3E-5239 6 299-BK-18

BUCKET KO DETENT SOL

NEUTRALIZER SW

OPTIONS CODE 1

OPTIONS CODE 2
OPTIONS CODE 3
OPTIONS CODE 0
J J MOUNTING MOUNTING

LOWER PROP SOLENOID

LOWER KO DETENT SOL

AUTO/MAN SW 1
AUTO/MAN SW 2
101-RD-14 102-RD-14 J 825G JJJ

LIFT PROP SOLENOID

DUMP PROP SOLENOID

SW & SENSOR RETURN

SW & SENSOR RETURN
LIFT KO DETENT SOL
BACKUP ALARM

KEY SW TO B+
15A 87A BOLT BOLT 2 FUNCTIONS 127-3003 NO NO

TILT LEVER 5000Hz

LIFT LEVER 5000Hz
START RELAY
200-BK-12 L66 ATCH

4TH LEVER 5000Hz

3RD LEVER 5000HZ

IMPL LO SW (N/O)
IMPL LO SW (N/C)
FORWARD SW
REVERSE SW
NEUTRAL SW

REVERSE FAN SOL

SOLENOID RETURN

SOLENOID RETURN

KO SET SW (N/O)
KO SET SW (N/C)

CAT DATA LINK +

CAT DATA LINK -
+ BATTERY
+ BATTERY
- BATTERY
- BATTERY
J 141-RD 175-RD-12 398-BU-12 STRAP AS. 7X-6315
Y J
J 87 30 J 3 FUNCTIONS WITH

1
2
3
4
5
RD 10A 199-RD L63 1 299-BK-18

BUCKET KO SW
Y L63 SELECTOR SWITCH 127-3011 YES YES 824G

CODE
CODE
CODE
CODE
CODE
STRAP AS. 7X-6315
RD 10A 130-RD 2 299-BK-18
J J J J

- BATTERY
- BATTERY
101-RD 10A STOPLAMPS 130-RD 200-BK A301-WH (A) CAB 3

+BATTERY

+BATTERY
J J CONN CONN
RELAY PANEL

BATTERY
101-RD 10A FORWARD HORN 114-RD 200-BK-12 GROUND 825G/826G 4
I

OPTION
OPTION
OPTION
OPTION
OPTION
I 101-RD
J
10A
J
KEY 105-RD 200-BK J2 J1 SEE CHART FOR 1 FUNCTION 127-2994 NO NO STD 5 W/O STEERING SWITCH

39
8
36
9
12
3
38
22
21
29
31
40
32
33

15
16
27
18
24
28
34
37
20
35

26
19
23
25
30
14
13
1
6
2
5
13

19
36
35
34
33
32
31
16

15

30
24
28
27
26
25

29

5
12
11

9
6

3
20
7
1
8
2
14
10
38

21
17
18

23
37

39
40

17
11
7
4

10
22
308-YL 308-YL CODE PLUG 6 299-BK-18 CONNECT WIRE AS. QQ
L66 L66 V V OPTIONS TO HARNESS AS. T
(A) FUSE FUSE HOLDER 308-YL CONN CONN GGG T GG

450-YL-18

977-YL-18
419-YL-18
752-YL-18

973-BR-18
720-PU-18

321-BR-18

754-BU-18

900-PU-18

945-BR-18
710-GN-18

944-OR-18
755-OR-18

751-GN-18

307-OR-18

G764-PK-18
G939-PK-18

278-BK
279-BK
276-BK
H728-GN-18
901-WH-18

277-BK

164-WH-18
3K-8782 4K-5122

202-BK

164-WH-18
202-BK
G766-GN-18

G761-YL

A273-BK
E987-WH-18

801-PK
306-GN

A273-BK
J2
CONN 36
J1

976-OR
H729-WH-18
G767-WH-18

G762-BR

G750-BU

G763-PU
G768-GN
975-WH
H728-GN-18 2 417-GY-18

975-WH

G755-GY
200-BK-14

G760-WH
105-RD
L90 L18

26
27
28
35

1
8
3

8
7
10
4

17
L18

25

36
5
4
37

9
10
11
12

25
24
19
20

23

15
16
17
18
21
22

29
30
31
32
33
34

13
38

40
2
6
7
14

11

39
19
21
22
20
29
35
15
16
18
12
13
14
23
24
9
3
27
28

26
37
34
30
31
32
33
36
38
2
5
6
40
1
39

1
2
H729-WH-18 1 201-BK-18
J OPTIONS V V

1
2
3
4
5
6
(11) MAIN BK-18 1 306-GN G767-WH-18 1 299-BK-18

762-YL-18
CODE PLUG V

E919-YL-18

H703-YL-18

A201-BK-18
A202-BK-18
A203-BK-18
A204-BK-18
A205-BK-18
945-BR-18
E921-PK-18

G949-YL-18

G944-YL-18
80A

H713-PK-18
H704-PK-18

E920-BR-18

944-OR-18
C530-BU-18

H710-PK-18
H720-BU-18
J

H717-BR-18

H709-BU-18

H702-PU-18

H715-PU-18
E922-GN-18

G948-BR-18

G943-BU-18
E918-GN-18
H711-GN-18

H714-OR-18

H708-OR-18

299-BK
299-BK
H719-OR-18

146-GY
146-GY
146-GY
G942-OR-18

A272-BK
A272-BK
E917-WH-18

BK-18
G947-WH-18
BK-18 2 975-WH G766-GN-18 V 2 299-BK-18

H716-WH

H716-WH
BREAKER
CONN 37

299-BK-18
A201-BK-18
A202-BK-18
A203-BK-18
A204-BK-18
A205-BK-18
2
1
9S-4693 J 944-OR-18 276-BK 1 3
BUSS BAR

177-RD-4
J J L92 GG
101-RD-12
101-RD-14
101-RD-14

7V-9275

945-BR-18 277-BK 2 4

975-WH
306-GN
306-GN
L14

A
B
C
(11) MAIN START RELAY (11) ENGINE SHUTDOWN CONTROL 973-BR-18 278-BK 3 (A) CAB 5 299-BK-18

BK
BK
975-WH
101-RD
101-RD
101-RD

RELAY 125-1302 T 3E-0462 L90 GROUND

977-YL-18 279-BK 4 6 299-BK-18

177-RD-8
L89

L88
101-7740

L80

BK
RD
BU
107-RD-14 1 RD-18 + BATTERY H702-PU-18 945-BR-18 945-BR-18 202-BK 5 HHH
RD
RD

304-WH
(23) STEERING

L98
J J 200-BK-14 2 BK-18 GROUND H703-YL-18 6
L105 L105

L71
PRESS SW

L101
327-PK-14 3 BU-18 ENG SOL H708-OR-18 944-OR-18 944-OR-18

L105
H716-WH-18

L104
L92 L104
Y L93 L106 3E-6450

146-GY
146-GY
6 OR-18 OFF H709-BU-18

146-GY-18
L92 L99 NOTE: FOR 824G ONLY
304-WH-8 306-GN 4 YL-18 G948-BR-18

L106
RESET L84 L105
L92 L105

L93
109-OR-4 109-RD-4 326-PU 5 WH-18 OFF (KEY) G949-YL-18 A273-BK
80A L93
J 109-RD
J 112-PU-4 299-BK-18 A273-BK 200-BK
L106
101-RD-4 101-RD-4 A219-BK-18 A219-BK-18 200-BK-14 G942-OR-18
L93 L77
101-RD

(11) ALTERNATOR 251-BK-18 G764-PK-18 251-BK-18 200-BK-14 H719-OR-18

L93
BREAKER (9) TRANSMISSION FILTER 200-BK-14 976-OR 202-BK-14 200-BK 299-BK-18 299-BK-18 E917-WH-18
L93 L16 L16 L106 L14 L14
9S-4693 PRESSURE SW 200-BK-14 E919-YL-18 202-BK-14 251-BK-18 200-BK G944-YL-18 L14 L14
200-BK L18 L18
9X-7781 200-BK-14 E920-BR-18 202-BK (22) CAB G943-BU-18 L64 L18

299-BK
L94 L94 L75 L64 L17 L17
T T 200-BK-14 H713-PK-18 202-BK GROUND H715-PU-18 L17 L17
L90 L90 L15 L15

L99
426-BR-18 201-BK-18 614-PU H714-OR-18 202-BK E918-GN-18 L15 L15 L13
L95 L99 L13 L13
614-PU H716-WH H710-PK-18
101-RD
105-RD
308-YL

109-RD
112-PU

306-GN

304-WH
310-PU
311-WH
302-OR
207-BK
203-BK
L71 L71

L98
L87
614-PU H717-BR-18 945-BR-18 945-BR-18 H711-GN-18
L87 L100 L98
762-YL-18 944-OR-18 944-OR-18 G947-WH-18
L13 L13

L80
J E921-PK-18 307-OR-18 H720-BU-18
L80 L101 L101 L74 L74 ANTENNA AS.
RELAY PANEL E922-GN-18 614-PU 299-BK-18 DOME LAMP
L89 L89 L77
CONN 35
1
5
8
15
13
9
12
14
16
17
6
18
19
20
4
10
11
2
7
3

201-BK-18 L77 (C.B. RADIO)

E 3E-6389
L88 L98 L98 L14 9U-2332

L14
DIAGNOSTIC CONNECTOR L63 L66 200-BK L14 508-PU E MMM MMM PPP PPP
L18 L18

201-BK-18
201-BK-18
200-BK 201-BK-18 L18 508-PU 509-WH 105-RD A RD-18
L17 L17 E
327-PK-14 L17 L69 509-WH C WH-18
L74
H LEFT H

L95
200-BK-14 200-BK 614-PU 512-BR 200-BK 200-BK B BK-18

L13
L109 L13 NNN
L95 SPEAKER ANTENNA AS.
102-RD-14

107-RD-14
200-BK-14

200-BK-12

397-OR-12
398-BU-12
(18) COOLANT TEMPERATURE SENSOR 200-BK-14 200-BK-14 614-PU 511-BR 200-BK-14 3 GROUND
304-WH-8
109-RD-4
101-RD-4
112-PU-4

CONN 32
L73 L73 6T-7695 (AM/FM RADIO)

A300-GN

A301-WH
K 100-3055 200-BK-12 200-BK 614-PU 4 201-BK-18 201-BK-18 299-BK A513-PK 200-BK-14 6 GROUND

L90
310-PU
203-BK
207-BK
302-OR
311-WH

306-GN
975-WH
141-RD
199-RD

130-RD
130-RD
308-YL
105-RD
114-RD

200-BK
L90 L100 L100 (B) VOLTAGE L17
K933-BU-18 A OR-18 +8V 200-BK 201-BK-18 614-PU 3 201-BK-18 201-BK-18 201-BK-18 200-BK-14 200-BK-14 102-RD-14 1 +24 V BATTERY IN 9U-2331
L96 L96 L70 L70 CONVERTER NNN
201-BK-18 B BK-18 GROUND 201-BK-18 201-BK-18 201-BK-18 614-PU-14 SERVICE 2 291-BK-18 201-BK-18 201-BK-18 200-BK-14 120-YL 120-YL 2 +24 V SWITCHED IN
L18 L18 MODE 119-1733
441-OR-18 C WH-18 SIGNAL 201-BK-18 1 290-BK-18 201-BK-18 A272-BK 135-BU RIGHT A513-PK 4 +12 V MEMORY OUT
L94

200-BK-14
615-YL-14
200-BK-14

615-YL-14
L94

L97
200-BK-14 200-BK-14 417-GY-18 A219-BK-18 PLUG V (22) CAB A272-BK 102-RD-14 SPEAKER 135-BU 5 +12 V SWITCHED OUT
L72 T L97 L75 L75

L84
114-RD 251-BK-18 6 275-BK-18 GROUND 6T-7695 E
(11) CHASSIS

L15
K BLOWER UNIT 5 274-BK-18 E
(6) START AID L15

L84
L100 HARNESS

201-BK-18
311-WH 1 BK GROUND 4 273-BK-18 511-BR
COOLANT SW (20) WATER VALVE CODE PLUG L16 L16 E

L100
200-BK-14 2 BK (20) BLEND DOOR 3 272-BK-18 512-GN 201-BK-18
3E-6425 ACTUATOR

CONN 33
ACTUATOR 271-BK-18 E 508-PU
CONN 31
2 2 432-PK-18
CONN 34

T° 126-5610 L2 L2

L69
126-5611 1 270-BK-18 509-WH 1 202-BK-18
L69 E
7 201-BK-18 NOTE: FOR 824G ONLY NOTE: FOR 825G ONLY NOTE: FOR 826G ONLY 512-BR 7 615-YL-14 419-YL-18
K J J TO ENTERTAINMENT MM
8 6 6 6 511-BR 8 G764-PK-18
L78
25
21
17
12
3
18
7
10
11
16
4
2
19
23
5
14
20
6
8
1
15
9
13
24
22

1
5
3
7
4
6
2

1
2
K933-BU-18 OR-18 +8V L78 V 201-BK-18 5 5 5 A513-PK 5 RADIO
A T YY

1
2
3
4
5
6
T
201-BK-18 B BK-18 GROUND 4 201-BK-18 4 201-BK-18 4 102-RD-14 135-BU 6
200-BK-14

YY
200-BK-12
398-BU-12

L3

A526-PK-14
112-PU-4
102-RD-14

107-RD-14

L102
109-RD-4

101-RD-4

A527-BU-14
397-OR-12
308-YL

310-PU

200-BK
203-BK

207-BK

304-WH-8
114-RD
130-RD

306-GN

199-RD
141-RD

130-RD
105-RD

302-OR
A300-GN

975-WH

311-WH

OPERATOR STATION
A301-WH

443-YL-18 C WH-18 SIGNAL 504-YL 3 201-BK-18 3 201-BK-18 3 120-YL 120-YL 120-YL 4

K933-BU-18

A596-YL-14
A592-BU-14
U

A595-GN-14
A593-OR-14
(20) BLOWER SPEED RESISTOR U

A594-WH-14
(15) TRANSMISSION 516-GN-14 505-BU 2 201-BK-18 2 201-BK-18 2 200-BK-14 3 (24) BRAKE SW

A
B
C

A
B
C
YY 9G-1950 L78 L100 L100
OIL TEMP SENSOR 503-BR 1 201-BK-18 1 1 CAB 3E-7693
(24) PARK
100-3055 517-BU-14 515-GY-14 A538-OR-14 7 201-BK-18 7 201-BK-18 7 FLOOD
YY YY BRAKE SW

L97
8 8 8 3 605-YL 3 605-YL-14

BK
RD
BU
L96

L87
LAMP

L89
L88

200-BK-14

BK
RD
BU
(15) ENGINE L17 3E-6452 SHOWN

200-BK-14
YY V RRR V SSS V TTT V FRONT DASH ASSEMBLY/STEERING WHEEL 4 606-GY 4 606-GY-14 9X-4381
SPEED 1 124-GN-14 1 536-WH 1 536-WH SHOWN WITH BRAKE
MM

L102
201-BK-18 SENSOR (E) TACH/SPEEDO/SERV METER SELECT SW 2 538-BR 2 538-BR 615-YL-14 WITH OFF

615-YL-14
615-YL-14
200-BK-14
200-BK-14
2 A525-GN-14 LH REAR HEADLINER
C B
CONN 28
201-BK-18 6V-2455 (20) WATER VALVE/BLEND DOOR 522-WH-14 200-BK-14 3 A524-BR-14 299-BK-18 200-BK (MOMENTARY) XX XX D 200-BK-14 BRAKE OFF
C
200-BK-12
200-BK-14

398-BU-12

L79
107-RD-14
112-PU-4

102-RD-14

101-RD-4
109-RD-4

YY YY
397-OR-12
WH-18

308-YL
BK-18

203-BK
200-BK
310-PU

207-BK

304-WH-8

130-RD

114-RD

L42
MM
130-RD

105-RD

141-RD
199-RD
306-GN

302-OR

A300-GN

CONTROL ASSEMBLY 112-6171

311-WH
975-WH

4 A523-PU-14 H709-BU-18 614-PU

A301-WH

L42 A
K 126-6010 YY G762-BR E
201-BK-18

5 517-BU-14 H708-OR-18 E C 2 11 CAB

(20) THERMOSTAT V E E E MM
A 201-BK-18 WATER VALVE MTR (A) 1 A526-PK-14 6 516-GN-14 299-BK-18 H709-BU-18 299-BK-18 G949-YL-18 E735-PU-18 C 7 G768-GN NN FLOOD
T 3E-5464 L43 L43
B 405-GY-18 WATER VALVE MTR (B) 2 A527-BU-14 7 515-GY-14 A 105-RD H708-OR-18 G948-BR-18 3 LAMP
3
2
1

E E E UPPER
C K BLEND DOOR MTR (A) 3 A592-BU-14 8 200-BK-14 B 200-BK 200-BK E 200-BK 4 9X-4381
BLEND DOOR MTR (B) 4 A593-OR-14 9 522-WH-14 C 614-PU 614-PU 1 201-BK-18 201-BK-18 5 G750-BU CAB
MM
BK-18
RD-18
BU-18

E E GROUND

615-YL-14
L72 CAB BLEND DOOR POS (+) 5 A594-WH-14 10 D 944-OR-18 3 C413-YL-18 C 6 G755-GY 615-YL-14
L103 L72 (20) BLOWER L60 L7 L7

CONN 30

H716-WH-18
L100

L74
XX

200-BK-14
L73

FLOOD BLEND DOOR POS (SIG) 6 A595-GN-14 11 E 945-BR-18 5 E707-GN-18 200-BK 12 G763-PU 200-BK-14
3E-6392 YY C MM
(15) ENGINE G939-YL-18 LAMP BLEND DOOR POS (-) 7 A596-YL-14 12 F 200-BK 200-BK 6 E708-PK-18 614-PU G762-BR 8 G762-BR DOWNSHIFT (NO) 8 G760-WH
G NN

L102
E
L74 G

200-BK-14
615-YL-14

614-PU
OIL SW 450-YL-18 L115 9X-4381 POTENTIOMETER HI 8 A525-GN-14 MOTOR BK-14 2 200-BK-14 G 200-BK-14 4 C414-BU-18 G768-GN 5 G768-GN UPSHIFT (NC) 9 G761-YL 603-PK
L86 L86 L102 C
CONN 29
3E-6455 443-YL-18 L91 MM V. USER 9 A524-BR-14 WH/RD-14 1 515-GY-14 H 200-BK 200-BK-14 2 663-GY 373-GN-18 G760-WH 6 G760-WH UPSHIFT (NO) 10
L91 L55 L55 C
201-BK-18 POTENTIOMETER (COM) 10 A523-PU-14 J 299-BK-18 614-PU 7 200-BK G761-YL 7 G761-YL DOWNSHIFT (NC) 1 202-BK-18
L73 L56 L56
L73

405-GY-18 +24V 11 124-GN-14 614-PU 8 G750-BU 3 G750-BU FORWARD SW 2 322-GY

L101
K933-BU-18 MM GROUND 12 200-BK-14 ECAP SERVICE 202-BK-18 G755-GY 4 G755-GY REVERSE SW H

L79
LH REAR HEADLINER D A XX

L78
D

L77
L75
TOOL CONNECTOR BEACON (30) FUEL LEVEL SENDER
311-WH 373-GN 3 373-GN-18 G763-PU 1 G763-PU NEUTRAL SW
CONN 27 201-BK-18 1 PK-18

L65
310-PU

L115 L115 9X-9556 121-3174

441-OR-18 4 E735-PU-18 202-BK 2 202-BK GROUND 447-PK-18 2 BK-18
L80 L80
200-BK-14 2 310-PU

L111
L55 L55 (E) TRANSMISSION NN
1 308-YL

L97
L97 C B (E) START AID SW SHIFTER SW AS.
D C 201-BK-18 200-BK 603-PK-14 1 RD
L96 L75 C (MOMENTARY) 112-9711

L94
L96
202-BK-18 614-PU (E) FORWARD 200-BK-14 2 BK
L77 L62 L62 A 3E-7176
L77 614-PU HORN SW
C 2

200-BK
200-BK
XX

615-YL-14
C530-BU-18 200-BK 310-PU

200-BK-14
200-BK-14
615-YL-14
L101 C 2T-3360 H
L87 L78 L65 L65 LH FORWARD

L94
H704-PK-18 L101 L78 538-BR

L87
308-YL 322-GY 114-RD
L89 L94 3

L89
536-WH 322-GY HORN

L3
L103 L103 L111 L111 L3 H 7T-0970
605-YL-14
L88 L88 L67
606-GY-14 308-YL
L97

L2
H G

L7

L15
L14
L13
TRANSMISSION 35 167-OR

L55
L91
L86

L109
L72

L70
G FLOOD LAMP
203-BK 2 CAB 2 619-GN-14
CONN 25

201-BK-18
C413-YL-18
E708-PK-18

E735-PU-18

308-YL
E707-GN-18

C414-BU-18
200-BK
REV 4TH GEAR 9X-1439

310-PU
FWD

663-GY
LL

373-GN
251-BK-18
101-RD-4 146-GY-18 A RD-18 +V 1

A219-BK-18
3

L56
FLOOD 200-BK-14

L16

L43
CL #1 CL #2 CL #3 L8 L8 G
397-OR-12 397-OR-12 1 A 146-GY-18 299-BK-18 B BK-18 GROUND LAMP
398-BU-12 5 B 299-BK-18 H710-PK-18 C YL-18 SIGNAL 9X-4381 T H
L103
T A301-WH 6 H704-PK-18 C G942-OR-18 LL (D) LIFT LEVER 113-OR-18 B (E) RIDE CONTROL MM 3 322-GY G
L61 L61 FLOOD LAMP
A300-GN (18) TRANSMISSION SOLENOID 36 E927-GN-18 POS SENSOR 113-OR-18 113-OR-18 615-YL-14 1 114-RD 619-GN-14
LAMP

L77
L76 L76 LL 106-4437 9X-1439
(B) HOOD ACTUATOR 130-RD 37 E928-WH-18 308-YL E702-OR-18 7N-5876 200-BK-14 2 200-BK-14 200-BK-14
WH
WH
WH

WH
WH

WH

VALVES 12V (6) (20) REAR WIPER MM G

MOTOR 199-RD 33 A219-BK-18 146-GY-18 A RD-18 +V 4

L60
MOTOR 3E-3748 L60 B (E) AUTO RIDE 619-GN-14
124-3636 L8

L50
141-RD 34 801-PK 299-BK-18 B BK-18 GROUND E701-PK-18 5 201-BK-18

OPERATOR STATION
116-6844 (D) IMPLEMENT LOCK OUT SW CONTROL LAMP CAB
1
2

1
2

1
2

202-BK-18 H711-GN-18 C YL-18 SIGNAL 113-OR-18 6 447-PK-18

CONN 26
4 L (LOCK ON/NONE/ON) 7N-5876 FLOOD
TT TT TT L8

619-GN-14
200-BK-14
L89
T TT Q 32 G939-YL-18 801-PK LAMP 7
GND 116-4502 (D) TILT LEVER B

146-GY
146-GY
167-OR
HIGH BEAM
975-WH-18 H 30 975-WH 306-GN 504-YL 4 GN MOTOR H 299-BK-18 POS SENSOR 611-PU 9X-4381 8 G
L50 L67 L67 IND LAMP FLOOD LAMP
754-BU-18 G 754-BU-18 7 426-BR-18 419-YL-18 1
T° 2 1 LL 106-4437 200-BK
7N-5876 MM
CONN 24 200-BK-14
9X-1439

299-BK-18
299-BK-18
299-BK-18
299-BK-18
398-BU-12 975-WH-18 B 8 E919-YL-18 G939-YL-18 200-BK 2 BK 299-BK-18 E918-GN-18 LL 615-YL-14 619-GN-14
LL (B) HAZARD FLASHER G

L88
752-YL-18 A 752-YL-18 9 E920-BR-18 975-WH 118-GY 6 GY P 299-BK-18 299-BK-18 E917-WH-18 H719-OR-18 1 200-BK-14 T H
B+ B 3 LL L10
F 975-WH-18 D 10 443-YL-18 450-YL-18 503-BR 3 BR 299-BK-18
LL
H716-WH-18 2 B
LAMP MM 1 H713-PK-18 F
751-GN-18 C 751-GN-18 11 447-PK-18 321-BR-18 L78 505-BU 5 OR 614-PU 200-BK 7N-5876 2 H714-OR-18 H G

L47
A G
LEFT REAR BUMPER 975-WH-18 J 12 450-YL-18 522-WH-14 V (D) LIFT LEVER 538-BR 3 H716-WH 1 200-BK-14 FLOOD LAMP
L110 K.O. DETENT SOL 9X-1439
755-OR-18 I 755-OR-18 13 496-WH-18 146-GY A538-OR-14 A538-OR-14 LEFT TURN 4 H717-BR-18 2 619-GN-14
L76 3E-9366 B G

L76
(8) HOOD ACTUATOR SW 975-WH-18 F 14 506-PU E919-YL-18 B 605-YL IND LAMP 5 E919-YL-18
L110

V
(MOM-LOCKED OFF-MOM) 900-PU-18 E 900-PU-18 15 507-WH E920-BR-18 (D) IMPLEMENT FUNCTION 37 200-BK 7N-5876 6 E920-BR-18 322-GY H
6T-6970 975-WH-18 L 16 604-OR H713-PK-18 SELECT SWITCH 38 D V 7 E921-PK-18 322-GY RH FORWARD
901-WH-18 K 901-WH-18 17 608-GN H714-OR-18 (ON/NONE/ON) 11 373-GN 14 8 E922-GN-18 114-RD HORN
T

E917-WH-18
E918-GN-18
H710-PK-18
G942-OR-18

H711-GN-18
H719-OR-18
H716-WH-18
G943-BU-18
G944-YL-18
T 2 1

L96
L87

L80
7T-0970

146-GY-18
146-GY-18

299-BK-18
299-BK-18
130-RD M 975-WH 18 617-BR H716-WH 116-4509 27 3 114-RD H
3 TT TT TT
N 19 H713-PK-18 H717-BR-18
L80 V NOTE: FOR 824G ONLY 17
(E) QUAD GAUGE
100-5895 19 CONN 23

129-BU
200-BK
614-PU
L75

C530-BU-18
2
1

2
1

2
1

T 710-GN-18 20 H714-OR-18 G764-PK-18 7 A 13 322-GY 270-BK-18

2 1 LL

614-PU-14
A300-GN E987-WH-18 426-BR-18 21 H716-WH 762-YL-18 299-BK-18 201-BK-18 2 GROUND C413-YL-18 4 WH-18 DATA 12 310-PU 271-BK-18 IMPLEMENT PRESSURE CONTROL MANIFOLD

614-PU
LL CIGAR L5 L5

L60
A301-WH 417-GY-18 22 H717-BR-18 E921-PK-18 275-BK-18 6 HARNESS CODE 5 201-BK-18 2 BK-18 GROUND G762-BR 272-BK-18

201-BK-18
1

200-BK-14
WH
WH

WH
WH

WH
WH

B 3 LL L60 L15

202-BK
202-BK
202-BK
LIGHTER
975-WH-18
975-WH-18
975-WH-18
975-WH-18
975-WH-18
975-WH-18
975-WH-18

202-BK-14
201-BK-18 23 G764-PK-18 E922-GN-18 Z 536-WH 299-BK-18 200-BK 274-BK-18 16 HARNESS CODE 4 E707-GN-18 1 OR-18 +V DISPLAY G768-GN 2 118-GY 273-BK-18
JJ 326-PU 24 762-YL 976-OR Z 538-BR 614-PU 9W-0335 E702-OR-18 273-BK-18 22 HARNESS CODE 3 E708-PK-18 3 GN-18 CLOCK G760-WH 4 270-BK-18 274-BK-18
1 LL A
JJ 838-YL 447-PK-18 25 441-OR-18 201-BK-18
CONN 18 E701-PK-18 272-BK-18 12 HARNESS CODE 2 C414-BU-18 5 YL-18 MODULE LOAD G761-YL 5 271-BK-18 275-BK-18

200-BK
200-BK
G943-BU-18
G944-YL-18

L7
200-BK
2 LL LL TILT LEFT TILT RIGHT TIP FWD
141-RD 838-YL 308-YL 26 442-GY-18 614-PU-14 611-PU 271-BK-18 3 HARNESS CODE 1 6 BU-18 HARNESS CODE G750-BU 6 272-BK-18 290-BK-18
3

1
5
2
3
4
6
7
8
3RD GEAR 2ND GEAR LL LL PROP SOL PROP SOL PROP SOL

2
3
4
5
9
6
7
G944-YL-18 11
8
1
G947-WH-18 12
G943-BU-18 10
839-BU 1ST GEAR 105-RD 27 E921-PK-18 251-BK-18 D B 605-YL 270-BK-18 31 HARNESS CODE 0 G755-GY 7 273-BK-18 291-BK-18
L115

4 KK KK
JJ CL #4 CL #5 123-9038 123-9038 123-9038

L94
839-BU CL #6 306-GN 28 E922-GN-18 202-BK-18 Z 537-GN 200-BK-14 E735-PU-18 40 538-BR 291-BK-18 33 CLEAR G763-PU 8 274-BK-18 G762-BR

129-BU
200-BK

RD
RD

RD
RD

RD
RD
299-BK-18
146-GY-18
146-GY-18

299-BK-18
5

H720-BU-18

H710-PK-18
L115

H715-PU-18

E918-GN-18
614-PU

H719-OR-18
129-BU

200-BK

H711-GN-18

G942-OR-18

E917-WH-18
H716-WH-18
200-BK 839-BU 102-RD-14 29 K933-BU-18 Z 200-BK V 200-BK-14 E702-OR-18 37 275-BK-18 290-BK-18 23 SERVICE 322-GY 9 275-BK-18 G768-GN

FRONT DASH ASSEMBLY

CONN 22
6 L94 A A A A
838-YL TRANSMISSION 112-PU-4 31 976-OR C530-BU-18 200-BK 200-BK-14 E701-PK-18 36 274-BK-18 E735-PU-18 18 OPERATOR SW INPUT 663-GY 10 290-BK-18 G760-WH L14

105-RD
202-BK
L8 L8

2
1

2
1

2
1
310-PU T V 521-YL-14 Z 611-PU-14 28 611-PU 273-BK-18 945-BR-18 14 CAT DATA LINK - 308-YL 11 291-BK-18 G761-YL
(8) TRANSMISSION GUARD JJ T (21) CAB H H H

108-BU-14
130-RD 608-GN + BATTERY 3 113-OR-18 275-BK-18 9 272-BK-18 944-OR-18 5 CAT DATA LINK + 200-BK 310-PU 15 500-BR G750-BU
ACTUATOR SW GROUND
4 199-RD 608-GN 19 419-YL-18 506-PU GROUND 1 200-BK 274-BK-18 8 271-BK-18 410-WH-18 4 ACTION ALARM 663-GY 373-GN 16 501-GN G755-GY E921-PK-18
L113

7N-8008

L83
3 141-RD 321-BR-18 2 130-RD 507-WH LIGHTS ON 2 614-PU OPERATOR IMPLEMENT CONTROLS 273-BK-18 7 270-BK-18 C413-YL-18 35 MODULE DATA 202-BK-18 17 502-OR G763-PU E922-GN-18
L113 L83 L65 L65

L55
200-BK 7 200-BK Q 617-BR 20 432-PK-18 617-BR SPEEDO LAMP 4 662-YL 538-BR 272-BK-18 6 291-BK-18 C414-BU-18 15 MODULE LOAD 538-BR 18 536-WH 307-OR-18 E920-BR-18
T L13
141-RD 1 200-BK 710-GN-18 1 BK-18 614-PU-14 4 146-GY C529-GY-18 TACH LAMP 5 661-GN 536-WH 271-BK-18 5 290-BK-18 E707-GN-18 34 CLUSTER +V 536-WH 24 663-GY 944-OR-18 H716-WH H716-WH

L6
(16) CRANKCASE GUARD L55 L6

L86
200-BK 2 897-GN 1 E987-WH-18 2 WH-18 604-OR 5 201-BK-18 L76 E928-WH-18 GAGE LAMPS 6 663-GY 537-GN RH SEAT ARM 270-BK-18 4 E735-PU-18 E708-PK-18 25 MODULE CLOCK 661-GN 20 605-YL-14 945-BR-18 H716-WH
ACTUATOR MOTOR
199-RD 8 898-PU 2 MOTOR (20) TRANSMISSION 507-WH 6 E927-GN-18 (C) CONTROL GP 338-PK-14 291-BK-18 11 945-BR-18 442-GY-18 10 HYD TEMP SENSOR 662-YL 21 606-GY-14 614-PU H716-WH H716-WH
119-7933 L76 L76 L56 L56
6 838-YL 506-PU 7 251-BK-18 200-BK-14 290-BK-18 10 944-OR-18 443-YL-18 28 CNVT TEMP SENSOR 614-PU 22 661-GN 201-BK-18

200-BK
L107

NOTE D OUTPUT SPEED DIMMER L5

299-BK-18
5 839-BU SENSOR 419-YL-18 8 306-GN 604-OR 338-PK-14 200-BK 200-BK 945-BR-18 32 410-WH-18 441-OR-18 8 COOL TEMP SENSOR 326-PU 23 662-YL 200-BK E919-YL-18
JJ 103-5526 Z Z
CONN 17
6V-2455 432-PK-18 9 308-YL K933-BU-18 944-OR-18 31 C413-YL-18 447-PK-18 9 FUEL LEVEL SENSOR 307-OR-18 202-BK-18 H714-OR-18
1 L64 L64

L61
JJ

L16
898-PU G764-PK-18 10 310-PU 443-YL-18 410-WH-18 C414-BU-18 K933-BU-18 24 +8V SENSOR SUPPLY 501-GN D V 202-BK-18 H713-PK-18
L107

2 Z Z L52 E 14 L9 L9

L80
L16
199-RD 898-PU 496-WH-18 11 321-BR-18 447-PK-18 L80 116-BR-14 615-YL-14 615-YL-14 200-BK KK L62 442-GY-18 21 E707-GN-18 432-PK-18 20 BRK OIL PRESS 118-GY 14 118-GY H
3 KK L62 H H

L86
E 897-GN 442-GY-18 12 322-GY 496-WH-18 614-PU 614-PU E 443-YL-18 22 E708-PK-18 405-GY-18 19 ENG OIL PRESS 500-BR 40 E702-OR-18 E
4 (A) CAB FLOOD LAMP

1
5
2
3
4
6
7
8

1
2

1
2

1
2
L86

2
3
4
5
9
6
7
129-BU 11
8
1
12
10
JJ E

113-OR-18
113-OR-18
897-GN 443-YL-18 13 326-PU 441-OR-18 662-YL 102-RD-14 L65 441-OR-18 20 442-GY-18 417-GY-18 40 PRIM STEER (ATT) 502-OR 35 G762-BR K933-BU-18
5 RELAY V V
200-BK 897-GN 405-GY-18 14 403-GN-18 442-GY-18 661-GN 537-GN E 447-PK-18 23 443-YL-18 403-GN-18 30 ALTERNATOR 105-RD 32 G768-GN 443-YL-18
L108

200-BK-14
200-BK-14

299-BK-18
146-GY-18

G944-YL-18

108-BU-14
6 3E-5239

H715-PU-18
H710-PK-18
H720-BU-18
E918-GN-18

G943-BU-18
H719-OR-18

200-BK
614-PU

H711-GN-18

G942-OR-18
E917-WH-18

H716-WH-18
G947-WH-18
898-PU K933-BU-18 15 405-GY-18 417-GY-18 663-GY E 102-RD-14 K933-BU-18 35 441-OR-18 496-WH-18 29 HYD OIL LEVEL (E) TACH/SPEEDOMETER 201-BK-18 33 G760-WH 447-PK-18

RD
RD

RD
RD

RD
RD
FLOOD N L108
CONN 21
200-BK-14 (3) REVERSING FAN 441-OR-18 16 C530-BU-18 432-PK-18 410-WH-18 432-PK-18 18 447-PK-18 426-BR-18 32 TRANS FILTER 109-0598 E702-OR-18 34 G761-YL 496-WH-18
(8) CRANKCASE GUARD L37 L37
L81

LAMP 608-GN-14 G939-YL-18 17 C529-GY-18 403-GN-18 201-BK-18 538-BR TO SUSPENSION GP-SEAT 405-GY-18 13 K933-BU-18 113-OR-18 1 + BATTERY C E701-PK-18 30 G750-BU 441-OR-18
SOLENOID VALVE E

614-PU
ACTUATOR SW L81 (A) ACTION

H716-WH-18
9X-1439 N E
N M 119-5021 521-YL-14 18 417-GY-18 405-GY-18 RD 1 410-WH-18 536-WH 417-GY-18 15 432-PK-18 21 C413-YL-18 4 WH-18 DATA 611-PU-14 31 G755-GY 442-GY-18 (29) LIFT (21) LOWER (28) TIP BACK

SEAT
7N-8008 T ALARM TO SEAT
1 200-BK-14 NOTE D 522-WH-14 3 138-GN-18 322-GY BK 2 201-BK-18 403-GN-18 12 405-GY-18 39 201-BK-18 2 BK-18 GROUND 275-BK-18 36 G763-PU 426-BR-18 PROP SOL PROP SOL PROP SOL
201-BK-18
447-PK-18

3E-6328

2
1
N 2 200-BK-14 GN-18 1 H704-PK-18 403-GN-18 1 105-RD 326-PU TO SEAT HEATER 496-WH-18 24 417-GY-18 26 E707-GN-18 1 OR-18 +V DISPLAY 274-BK-18 5 202-BK-18 417-GY-18 123-9038 123-9038 123-9038
Z

SEAT
L47 L47 HEATER KK SWITCH
CONN 20

L68
LEFT REAR BUMPER S RD-18 A 604-OR 3 604-OR GN-18 2 H716-WH-18 202-BK-18 T V 308-YL 426-BR-18 16 403-GN-18 36 E708-PK-18 3 GN-18 CLOCK 273-BK-18 1 105-RD 432-PK-18
L64 L48 L57 L57
T WH-18 C 617-BR-14 4 608-GN-14 450-YL-18 310-PU X Z 536-WH 201-BK-18 113-OR-18 1 496-WH-18 411-PK-18 13 ACTION LAMP C414-BU-18 5 YL-18 MODULE LOAD 272-BK-18 2 113-OR-18 403-GN-18

L50
G BK-18 B 200-BK-14 5 617-BR-14 619-GN-14 8 102-RD-14 605-YL-14 150-OR-14 REAR WINDOW DEFROSTER 150-OR-14 E707-GN-18 615-YL-14 29 615-YL 426-BR-18 6 BU-18 HARNESS CODE 271-BK-18 3 200-BK 405-GY-18 (28) ON/OFF

113-OR-18
(E) CATERPILLAR MONITORING SYSTEM

1
2

1
2
6 322-GY 606-GY-14 108-BU-14 SEAT AIR COMPRESSOR/HTR 108-BU-14 L64 L64 E708-PK-18 910-YL-18 113-OR-18 270-BK-18 201-BK-18 322-GY PILOT SOL
3 522-WH-14 30 4
L112

L62 KK KK 100-5778

200-BK-14
108-BU-14
STOP/TAIL/PARK LAMP L62 112-8210
H713-PK-18 2 521-YL-14 611-PU-14 124-GN-14 BLOWER MOTORS 124-GN-14 C413-YL-18 439-YL-18 19 201-BK-18 291-BK-18 6 307-OR-18 326-PU

200-BK-14

108-BU-14
L112

8124-GN-14
8124-GN-14
3E-6467 H714-OR-18 4 619-GN-14 C414-BU-18 200-BK 2 910-YL-18 290-BK-18 7 308-YL 308-YL
X Z C C C C
H716-WH 5 605-YL-14 130-RD C414-BU-18 C414-BU-18 34 439-YL-18 945-BR-18 8 326-PU 310-PU
617-BR-14

H717-BR-18
FLOOD M 15A L62 L58 L58 L12 L12
200-BK-14 H717-BR-18 6 606-GY-14 426-BR-18 144-GN BEACON 144-GN L62 C413-YL-18 C413-YL-18 33 615-YL 200-BK 661-GN 944-OR-18 9 403-GN-18 605-YL-14
L68 L68 D

L67
200-BK
200-BK

H716-WH
LAMP 608-GN-14 E919-YL-18 7 102-RD-14 167-OR ETAC 167-OR E708-PK-18 E708-PK-18 39 606-GY 662-YL 410-WH-18 10 405-GY-18 606-GY-14
M X Z

SPARE
L57

SPARE
9X-1439 E920-BR-18 1 105-RD 118-GY WIPER MOTORS 118-GY E707-GN-18 E707-GN-18 38 200-BK 442-GY-18 11 410-WH-18 611-PU-14

BK
BK
15A L57

L51
NOTE D M T 200-BK-14 E921-PK-18 10 611-PU-14 138-GN-18 138-GN-18 PAYLOAD MEAS SYS 138-GN-18 605-YL-14 605-YL-14 26 605-YL CAB L67 200-BK 443-YL-18 12 417-GY-18 610-OR-14
M L51
(A) 15A CIRCUIT GROUND

201-BK-18
(1) BACKUP ALARM 975-WH 7 975-WH 321-BR-18 E922-GN-18 11 619-GN-14 112-PU-4 Z Z Z Z 120-YL VOLTAGE CONVERTER 120-YL 606-GY-14 606-GY-14 27 606-GY 441-OR-18 13 426-BR-18 619-GN-14

L5
L49

2
1
L5
L16
BREAKERS Z
975-WH

3T-1815 321-BR-18 2 321-BR-18 617-BR 12 112-PU-4 113-OR-18 538-BR 538-BR 25 447-PK-18 15 432-PK-18 439-YL-18
L113

H
L113

M 6N-8589 L16 L68

L68
4 608-GN 614-PU-14 9 614-PU-14 127-OR 201-BK-18 201-BK-18 3 K933-BU-18 16 439-YL-18 105-RD
10A
10A
10A
10A
10A
10A
10A

E707-GN-18
E708-PK-18
C413-YL-18
C414-BU-18
L68
CONN 19
(A) FUSES
112-PU-14
112-PU-14
112-PU-14

606-GY-14
605-YL-14

202-BK-18

201-BK-18
6 617-BR 604-OR T V 17 B 432-PK-18 17 441-OR-18 500-BR
(E) ACTION
3 604-OR 608-GN 129-BU 108-BU-14 200-BK 200-BK 200-BK 411-PK-18 405-GY-18 18 442-GY-18 910-YL-18

538-BR
536-WH

200-BK
614-PU

662-YL
661-GN
L57 L57
CONN 14 W W W W W W LAMP
5 614-PU-14 975-WH 975-WH 975-WH 112-PU 164-WH-18 614-PU 614-PU 201-BK-18 417-GY-18 19 443-YL-18 502-OR

L3

L6
FLOOD M L6 9W-2111
200-BK-14 1 200-BK-14 Q V 112-PU 10A FUSES (QTY 12) 146-GY 538-BR 403-GN-18 20 447-PK-18 501-GN
LAMP 608-GN-14 8 5 754-BU-18 112-PU
W 188-WH-18 A 536-WH 536-WH 496-WH-18 21 496-WH-18 E701-PK-18
3K-8782 L9

200-BK
200-BK
M C L39

200-BK
200-BK
9X-1439 4 752-YL-18 112-PU W 251-BK-18 B 661-GN 661-GN L9 426-BR-18 410-WH-18
22
CONN 15
15A FUSE

L79
120-YL
W

2
5
4
12
1
3
10
11
8
9
7
6
102-RD-14
NOTE D 3 751-GN-18 112-PU E955-OR-18 C 662-YL 662-YL 200-BK 113-OR-18 538-BR 113-OR-18
L111

W W 8M-8948 23

L56
W D
6 755-OR-18 112-PU 202-BK-18 202-BK-18 200-BK 910-YL-18 E702-OR-18 615-YL-14
L80

E 39
L80 W FUSE HOLDERS (QTY 14)
112-PU

L57
7 900-PU-18 X 439-YL-18 25 614-PU 663-GY FRONT COMPACTOR FRAME
V 4K-5122 L57
CONN 13
P P M 8 901-WH-18 TERMINAL STUD 9G-8451 L57 615-YL-14 26 615-YL-14 661-GN

L49
L110 X W W Z B (E) NEUTRALIZER SYMBOL DESCRIPTION

614-PU
614-PU
S RD-18 A 604-OR 1 200-BK-14 9 975-WH 112-PU 10A 113-OR-18 SEMS 200-BK 605-YL-14 27 910-YL-18 662-YL

L4
X W W L58 L58 OVERRIDE LAMP L4

L37
Z L47
615-YL-14
200-BK-14

T WH-18 C 614-PU-14 2 200-BK-14 CAB 10 112-PU 15A 127-OR REAR FLOODS 201-BK-18 910-YL-18 606-GY-14 28 944-OR-18 538-BR BLADE, SPADE, RING,
D G BK-18 B 200-BK-14 3 604-OR FLOOD 11
W
112-PU
W
15A
Z
116-BR-14 FRONT FLOODS
L37
200-BK-14 (E) KEY START SW
7N-5876
200-BK 29 945-BR-18 536-WH OR SCREW TERMINAL D
LAMP W W Z E E
4 608-GN-14 12 112-PU 10A 129-BU CIGAR LIGHTER 200-BK-14 200-BK 202-BK-18 9G-7641 L58 B 37 K933-BU-18 720-PU-18
STOP/TAIL/PARK LAMP 9X-4381 W W Z L70 CIRCUIT CONNECTED
5 614-PU-14 2 710-GN-18 112-PU 10A 164-WH-18 AUTOSHIFT 200-BK-14 D R 439-YL-18 38 E701-PK-18 130-RD
W W

606-GY-14
605-YL-14
Z
102-RD-14

3E-6467 6 1 E987-WH-18 112-PU 10A 146-GY IMPLEMENTS 614-PU 200-BK-14 L70 201-BK-18 308-YL 113-OR-18 24 611-PU-14 604-OR
MM W L52 L48
112-PU W L52 L48 ABBREV COLOR CIRCUIT NOT CONNECTED
10A SPARE L48 614-PU 614-PU
CONN 12
105-RD

105-RD

CONN 16 L79 L23 D C OFF

L49
614-PU 614-PU L 326-PU 611-PU-14
FLOOD L51 L49 D D S ON RD RED ELECTRICAL CONNECTION
MM 307-OR-18 619-GN-14
P L52 L51 L42 GND ST B FLOOD LAMP
L110

LAMP L42 501-GN 4 GN H B 200-BK 611-PU-14 WH WHITE TO MACHINE STRUCTURE

608-GN-14 MOTOR 105-RD
L110 L23 L23 D IND LAMP
L86

9X-1439 OR ORANGE
L86

200-BK-14 105-RD 1 (E) FRONT WIPER L9 501-GN 615-YL 610-OR-14 INTERNAL ELECTRICAL
P L85 T° 7N-5876 L1 YL YELLOW

L4
202-BK 200-BK 2 BK 124-3635 118-GY 202-BK-18 CONNECTION TO SURFACE
201-BK-18
338-PK-14

L43 L59 L59

108-BU-14
615-YL-14
410-WH-18

124-GN-14
150-OR-14

164-WH-18
138-GN-18

113-OR-18
L43 L43 PK PINK
202-BK-14 118-GY 6 GY P 500-BR 720-PU-18 OF COMPONENT
L20 L20 B+ B RIGHT TURN BK BLACK
L20 500-BR 3 BR 502-OR 200-BK 130-RD
129-BU

127-OR
614-PU

167-OR

118-GY
661-GN
662-YL
663-GY
536-WH
537-GN
538-BR

200-BK

146-GY

144-GN

120-YL
L79 L79 L28 L28 IND LAMP CONNECTOR
L28 502-OR 5 OR 201-BK-18 606-GY 604-OR GY GRAY
7N-5876 PU PURPLE ATCH WIRE, CABLE &
L39 L39 L59 L59
118-GY

COMPONENT
L91

L39 BR BROWN
L91 NOTE: CONN AT FLOOR GN GREEN CIRCUIT GROUPING
CONN 9
FRONT DASH ASSEMBLY/STEERING WHEEL L#
L4 L4 OF CAB BU BLUE DESIGNATION
L83

L83 Z

L12
L48

L10
L47
L42
L37
L20

L39

L2
(5) A/C HIGH/LOW

L43

L28
RH REAR HEADLINER
L107

L109

L21
L86

CONN 10
L72

4
5
7
37
14
15
16
22
23
25
26
32
118-GY 27
164-WH-18 17
614-PU 19
1
2
538-BR 21
661-GN 29
662-YL 10
663-GY 40
615-YL-14 33
113-OR-18 30
9
138-GN-18 24
6
200-BK 11
129-BU 18
8
201-BK-18 20
3
167-OR 39
338-PK-14 31
144-GN 34
120-YL 13
150-OR-14 28
127-OR-14 36
12
38
35

PRESSURE SW 200-BK-14 118-GY

V
L84

114-5333 L 200-BK-14 K (14) ENGINE 450-YL-18 118-GY L21

L85
108-BU-14

L85
124-GN-14

146-GY
537-GN

410-WH-18

BK-18 SHUTDOWN G939-YL-18 K T

536-WH

2 3 2 521-YL-14 200-BK-14 118-GY (C) REAR (C) RUNNING/WORK/PANEL/TAIL DOME LAMP

SOLENOID L82 ROADING
1 BK-18 1 513-OR-14 327-PK-14 443-YL-18 16 450-YL-18 720-PU-18 WIPER SW LAMP SW 3E-6389
K L82 118-GY E 3T-6655 PARK WORK1 E E
110-6465 405-GY-18 15 443-YL-18 118-GY 118-GY 108-3320 105-RD
L81 PANEL L27 L27
K933-BU-18 10 405-GY-18 E OFF 105-RD 105-RD A RD-18 1 138-GN-18 138-GN-18
L91

(9) SUPPRESSOR L81 H B B LAMP WORK2

441-OR-18 V KKK

118-GY
L 8 403-GN-18 124-GN-14 C WH-18 24
106-8704 L108 L108 L46 E E 7N-5876 1
1 513-OR-14 311-WH 14 441-OR-18 138-GN-18 138-GN-18 200-BK B BK-18 20 C530-BU-18 619-GN-14 B 200-BK-14
2 522-WH-14 CONN 11 201-BK-18 12 13 C529-GY-18 611-PU-14 C

614-PU
200-BK
L47 L53 L47 B1 L1 L1 IDENT PART NO. CHG LOC NOTE
L48

327-PK-14 11 521-YL-14 615-YL-14 21 251-BK-18 610-OR-14 A

L54 L54 L23 L23 HARNESS AS.
L L K 200-BK-14 13 522-WH-14 18
CONN 8
L53 L45 L54 L46 L53 E L 2 A 116-2239 00 G-5

GY-14
GN-14 1 513-OR-14 1 521-YL-14 17 K933-BU-18 K933-BU-18 E 2 251-BK-18
L54 L48 L48 P W L20
L54

L20 B

BR-14
GN-14 2 522-WH-14 522-WH-14 2 522-WH-14 3 G939-YL-18 C529-GY-18 19 944-OR-18 116-2241 00 E-5
L41 L46 L46 E (B) REVERSING FAN SW
403-GN-18 4 207-BK 202-BK-18 C530-BU-18 E PANEL 15 945-BR-18 C 116-2240 00 D-9
126-1709
OPERATOR STATION
L86

(6) A/C CLUTCH D 116-2238 00 D-3

L86

109-RD-4 5 302-OR E955-OR-18 E LAMP NOTE D 7 188-WH-18

C SOLENOID L44 L45 L45 3 E 116-2242 00 A-11 C
L20

207-BK 1 304-WH-8 188-WH-18 A538-OR-14 E 7N-5876 E 14 E955-OR-18

L20 E
L28

102-0347 302-OR 302-OR 19 109-RD-4 944-OR-18 150-OR-14 200-BK 16 G 117-9761 00 F-1 NOTE C

PK-14
K L28 B2 E E H 117-9756 00 F-2
304-WH-8 311-WH
L109

6 945-BR-18 614-PU 12

OPERATOR STATION
1 E

505-BU
504-YL
503-BR
507-WH
E E 4 2 L28 J
403-GN-18

1 9 327-PK-14 327-PK-14 251-BK-18 299-BK-18 H703-YL-18 5 138-GN-18 E 114-5042 01 H-14

109-RD-4

L109 B3 E 3 K 114-5668 01 C-14

2 201-BK-18 201-BK-18 D
L44

2 251-BK-18 614-PU H702-PU-18 9 818-BR-18

PU-14
614-PU
200-BK
L44 E L 114-5667 00 C-15 ATCH
(17) RESISTOR 7 200-BK-14 200-BK-14 200-BK 3 820-BU-18 A
18 200-BK 4 819-GY-18 C M 117-9757 01 D-13
3E-7842 L116 L36 N 117-9764 00 D-14
L41

ALT 20 201-BK-18 V E 8 250-BK-18 B

202-BK-14

YL-14
K (11) START AID
202-BK

R 21 124-GN-14 L41 10 P 117-9763 00 D-14

+ (11) STARTER 200-BK 29 200-BK
K SOLENOID L72 L36 L36 5
311-WH

K933-BU-18

Q 115-3062 01 F-14

BU-14
6V-5539 K 22 A525-GN-14 118-GY 32 11
202-BK-18
301-BU

CONN 7
3E-6332 (25) NEUTRALIZER SW S 114-5669 00 A-2
(5) ALTERNATOR 304-WH-8 23 A524-BR-14 120-YL 23 RH FRONT HEADLINER 22 105-6118

OR-14
SS SS G S L112 T 117-9754 01 D-12
100-5047 (STD-50A) NOTE C

200-BK
200-BK
24 L72 A523-PU-14 127-OR-14 15 127-OR 6
L112 V U 119-6201 00 A-15
112-5041 (STD-50A) NOTE D 25 517-BU-14 138-GN-18 26 HVAC OPERATOR CONTROLS 23 ZZ
BK-6

BK-4

L43 ZZ

200-BK-14
MTR BAT V 116-2244 01 D-3
WH-18
PU-18

3E-7577 (ATT-75A) 516-GN-14 A538-OR-14 13 L43 17 202-BK-18 1

(C) TEMPERATURE SELECTOR

L21
K UU L79 515-GY-14 150-OR-14 18 (C) SELECTOR SW (C) BLOWER SW 720-PU-18 4 ZZ Z 116-2243 00 D-11
H713-PK-18
H714-OR-18

H717-BR-18
E919-YL-18
E920-BR-18
E921-PK-18
E922-GN-18

H716-WH-18

SS SS POTENTIOMETER
200-BK-14

619-GN-14

447-PK-18
201-BK-18
114-RD
322-GY

(A/C,OFF,HTR) (LOW,MED,HI)
203-BK

101-RD-4

505-BU 200-BK-14 31 GN-14 130-RD 2 130-RD-18 GG 115-5884 00 I-3 ATCH

(17) STARTER
207-BK

116-8653 E
H716-WH

MOTOR 3E-7155 3E-7156 WIRES THAT HAVE BATTERY VOLTAGE HH 117-9767 01 A-2 NOTE D

L31
503-BR 200-BK-14 33 604-OR 3 604-OR-18
L114
1
2

L85 L85 WHEN THE KEY SWITCH IS OFF. JJ 118-1940 00 E-15 NOTE D
RD-00

L44

118-GY
504-YL

118-GY
118-GY
T 200-BK-14 35 E E ZZ
CONN 5

RR L43 L44 E 1 ZZ KK 116-2245 00 E-8 STD

L41

BLOCK AS. A538-OR-14 G948-BR-18 28 E955-OR-18 L39

DD L41 L39 2 WIRES THAT HAVE BATTERY VOLTAGE

1
2
3
4
5
6
7
8
TO K L43 LL 124-8357 00 E-8 STD
T 8C-6358 127-OR-14 G949-YL-18 19 188-WH-18 E WHEN THE KEY SWITCH IS ON.
202-BK-18

T
202-BK-18
202-BK-18

RR 3 E 1
310-PU

E
311-WH

ENGINE E
200-BK

614-PU

BK-6 120-YL 299-BK-18 37 251-BK-18 251-BK-18 E (26) STOP LAMP SW MM 119-8983 00 G-3

338-PK-14
L53

102-RD-14
UU
1
2

4 2

610-OR-14
3E-5520

617-BR

614-PU
L42

105-RD
608-GN
127-OR
RD-00 150-OR-14 H708-OR-18 10 251-BK-18 NN 119-8984 00 G-3 ATCH

158-BR-14
HH L42 L42 E 5 3 E STARTING CIRCUIT.
BB E TT 104-6727 00 F-14
L83

144-GN H709-BU-18 3

102-RD-14
102-RD-14
FF E

158-BR-14
838-YL

L83 6 4 E
839-BU

XX 112-9712 02 G-4
L84
H716-WH

RD-00 338-PK-14 124-GN-14 6 118-GY 1 RD-14 B+

158-BR-14
E E CATERPILLAR MONITORING CIRCUIT.
AA L84 5 CONTROL GP- YY 126-5612 00 G-10
615-YL-14 C530-BU-18 24 118-GY 2 RD-18 B+
L41 6 E FOOT BRAKE ZZ 114-9493 00 C-1
BR-14
BK-14
RD-14

138-GN-18 C529-GY-18 7 614-PU L38 200-BK-14 3 BK-18 GROUND PANEL LAMP CIRCUIT.
L38 E E B 110-8029
RD-00

RD-00

202-BK-18 202-BK-18 30 202-BK-18 E 502-OR 4 WH-14 HIGH

158-BR-14
BK-00

WIRE AS.
521-YL-14

661-GN 608-GN 338-PK-14 38 501-GN 5 YL-14 LOW WIPER/WASHER CIRCUIT.

E A 1 E L19 W 116-2247 00 D-11
BK-00 662-YL 506-PU A525-GN-14 40 E 500-BR 6 BU-14 PARK
L10

118-GY
VV L32 L32 2 X 116-2246 00 D-11
124-GN-14
124-GN-14
L54

RD-00 663-GY 507-WH A524-BR-14 11 506-PU 7 BR-18 WASH HEATER AND AIR CONDITIONER CIRCUIT.
3
2
1

AA EE EE VV CC CC

200-BK
200-BK
E

614-PU
614-PU
DD E Y 119-6199 00 I-15 NOTE D

517-BU-14
516-GN-14
515-GY-14
BK-00 113-OR-18 617-BR A523-PU-14 36 L27 8
FF E 4 E
A525-GN-14
A524-BR-14
A523-PU-14

POS NEG POS NEG T 410-WH-18 105-RD GROUND CIRCUIT. QQ 9U-1420 01 I-3
E928-WH-18 251-BK-18 2 251-BK-18 200-BK (C) FRONT INTERMITTANT
(10) DISCONNECT SW L26 L26 E E 5 RR 9F-4337 07 B-15

521-YL-14
615-YL-14 L83 E927-GN-18 102-RD-14 20 105-RD 200-BK
L40 L40 E E WIPER SW ENGINE SHUTDOWN CONTROL.
7N-0718 (10) TO 426-BR-18 C529-GY-18 105-RD 21 614-PU SS 2W-8714 00 B-15 STD
203-BK

(C) AUTO/MANUAL/TOP GEAR SELECT SW 3E-0155

200-BK
200-BK
(4) 12V BATTERY (4) 12V BATTERY L36 L36

102-RD-14
B FRAME K933-BU-18 E SS 2W-8715 00 B-15 ATCH B

200-BK-14
C530-BU-18 144-GN 27 500-BR

200-BK-14
200-BK-14
123-6383
614-PU
614-PU
200-BK

200-BK
3T-5760 3T-5760 L31 4 3 IMPLEMENT CONTROL CIRCUIT.

102-RD-14
(C) TRANSMISSION GGG 127-3003 01 I-5

910-YL-18
720-PU-18
610-OR-14
443-YL-18 521-YL-14 500-BR 4 501-GN A219-BK-18 2 E E
L35 L19 L19 E MAN 2

614-PU
L35 E NEUTRALIZER HHH 127-3011 01 I-5

202-BK-18
BK-00 447-PK-18 944-OR-18 E928-WH-18 17 502-OR BK 2 973-BR-18

105-RD

608-GN
617-BR
1 START AID CIRCUIT.
CONN 6
FF 3 E
L28

FF E OVERRIDE SW JJJ 127-2994 01 I-5

202-BK-18
RD-00 BK-00 496-WH-18 945-BR-18 E927-GN-18 16 506-PU BK 3 977-YL-18

200-BK
614-PU
BB EE EE VV L28 E 4 112-6156 KKK 121-8038 00 C-1
441-OR-18 973-BR-18 439-YL-18 39 H728-GN-18 A219-BK-18 E BK 4 H728-GN-18 TRANSMISSION CONTROL CIRCUIT.

200-BK
614-PU
L34 L34 L32 L32 L30 L26 5 E RRR 127-9104 00 H-9
POS NEG POS NEG AUX START 442-GY-18 977-YL-18 E701-PK-18 14 H729-WH-18 BK 5 H729-WH-18
L33 L31 SSS 127-9105 00
L31

RECEPTACLE 417-GY-18 H708-OR-18 G767-WH-18 5 E928-WH-18 A219-BK-18 BK 1 202-BK-18 H-8

E701-PK-18
G767-WH-18
G766-GN-18
E702-OR-18
TTT 127-9106 00 H-8

L26

202-BK-18
L26

L22
432-PK-18 H709-BU-18 G766-GN-18 12 A219-BK-18 E928-WH-18 6 ALL DASHED LINES ARE ATTACHMENTS.
(4) 12V BATTERY (4) 12V BATTERY L25
403-GN-18 L81 G767-WH-18 E702-OR-18 25 E701-PK-18 614-PU 614-PU E927-GN-18 H728-GN-18
3T-5760 3T-5760 L29 CABLE AS.
405-GY-18 G766-GN-18 A219-BK-18 1 G766-GN-18 H728-GN-18 H729-WH-18
L33

L33 L24 L30 L30 AA 122-0488 00 B-15

322-GY G948-BR-18 615-YL-14 34 G767-WH-18 973-BR-18 973-BR-18
L45 L45 BB 7P-6681 04 B-15
200-BK 326-PU L84 G949-YL-18 501-GN 8 E702-OR-18 614-PU 977-YL-18 977-YL-18
CC 122-0489 00 B-15
L12

308-YL 614-PU 515-GY-14 9 E927-GN-18 614-PU E701-PK-18 E701-PK-18

L82

310-PU 299-BK-18 910-YL-18 22 910-YL-18 G767-WH-18 G767-WH-18 DD 061-7278 02 B-15

T T L24 L24
MOTOR 605-YL-14 A219-BK-18 516-GN-14 720-PU-18 G766-GN-18 G766-GN-18 EE 118-1277 00 B-15
REAR E FF 2G-1830 02 B-15 ATCH

200-BK
CONN 4

606-GY-14 251-BK-18 720-PU-18 973-BR-18 200-BK E702-OR-18 E702-OR-18

WASHER L29 PP 8X-5802 00 A-3
614-PU

611-PU-14 200-BK-14 608-GN 977-YL-18 200-BK-14 H729-WH-18 4

7T-8890 L114 E L22 PP PP UU 122-0490 00 B-15
118-GY
507-WH

720-PU-18

200-BK 202-BK-18 619-GN-14 200-BK-14 506-PU 910-YL-18 L22

L114 L30 L30 L22 VV 115-5696 00 B-15
200-BK K933-BU-18 130-RD 200-BK-14 507-WH 144-GN E L29 720-PU-18 614-PU 614-PU 614-PU
L85 L85 L40 L29 L23 MMM 124-4885 00 H-3
E
L40

507-WH 200-BK 604-OR 200-BK-14 617-BR 102-RD-14 144-GN 200-BK 614-PU 614-PU 614-PU (26) CAB GROUND
L126

(22) FRONT L116 L116 ENGINE END NNN 124-4884 00 H-3

506-PU 200-BK 614-PU 944-OR-18 105-RD 200-BK-14 200-BK 614-PU 200-BK
WASHER L37 L37 L25 FRAME PPP 124-4883 00 H-3
3 419-YL-18 201-BK-18 614-PU 945-BR-18 617-BR 603-PK 200-BK-14 200-BK
7T-8890
CONN 3
L28

L34

200-BK 4 432-PK-18 507-WH 118-GY H702-PU-18 973-BR-18 610-OR-14 614-PU 200-BK 202-BK-18 GROUND
L35

507-WH 7 G764-PK-18 506-PU 610-OR-14 H703-YL-18 977-YL-18 608-GN 202-BK-18 202-BK-18 HH

T L36 L30 (22) TRANSMISSION GUARD
L37

MOTOR 506-PU 2 202-BK-18 419-YL-18 720-PU-18 H728-GN-18 614-PU 202-BK-18 838-YL 1

L11 L107 L107 ACTUATOR MOTOR
T 200-BK 5 442-GY-18 432-PK-18 E702-OR-18 H729-WH-18 614-PU 200-BK-14 839-BU 2 MOTOR
H702-PU-18
H703-YL-18
H728-GN-18
H729-WH-18

CONN 2

L25 L25 119-7932

944-OR-18
945-BR-18

610-OR-14

910-YL-18
720-PU-18
973-BR-18
977-YL-18

200-BK-14
615-YL-14

521-YL-14
517-BU-14
516-GN-14
515-GY-14

8 K933-BU-18 G764-PK-18 439-YL-18 118-GY 614-PU RH FRONT HEADLINER

NOTE D
200-BK 6 496-WH-18 496-WH-18 500-BR 610-OR-14 502-OR RH REAR HEADLINER
507-WH
614-PU
536-WH
537-GN
538-BR

501-GN

614-PU
614-PU
617-BR

608-GN
502-OR
506-PU
505-BU
504-YL
503-BR

L20 L20
1 201-BK-18 442-GY-18 910-YL-18 720-PU-18 505-BU 614-PU 614-PU L20
L38 L38
U T 502-OR E702-OR-18 503-BR L38 202-BK-18
L19 L19
501-GN 439-YL-18 504-YL L19 L19
E L24 L24
E701-PK-18 502-OR 200-BK-14 L24
14
37
38
18
28
5
6
16
20
24
25
26
27
36
12
31
32
33
23
7
4
3
9
1
2
8
13
15
11
10
29
17
19
34
30
39
40
22
21
35

THIS SCHEMATIC IS FOR THE 824G, 825G & 826G COMPACTORS

536-WH 501-GN 610-OR-14 OPERATOR STATION OPERATOR STATION OPERATOR STATION
537-GN 500-BR 521-YL-14 V COMPONENTS ARE SHOWN INSTALLED ON A FULLY

L10
608-GN
L45

538-BR 536-WH OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
A 105-RD 517-BU-14
L45 L10 A
105-RD E701-PK-18 536-WH 537-GN L10 L10 L10 AND TRANSMISSION SHIFTER IN NEUTRAL.
L12 L12
910-YL-18 538-BR 538-BR
(23) HYDRAULIC ACTUAL TRANSMISSION GEAR, MACHINE SPEED AND
536-WH H702-PU-18
OIL LEVEL SW ENGINE SPEED INFORMATION ARE SENT TO CMS VIA
538-BR H703-YL-18
123-2993 THE CAT DATA LINK FROM THE TRANSMISSION CONTROL.
102-RD-14 H728-GN-18
L126 L126 THE CAT DATA LINK WIRES (944-OR & 945-BR) MUST BE
537-GN H729-WH-18 432-PK-18
L12 L2 L2 TWISTED TOGETHER AT LEAST 1 TURN PER 25mm
L10 L10 L12 L12 202-BK-18
L10 419-YL-18 S
102-RD-14 G764-PK-18 201-BK-18 WIRES (450-YL & G939-PK) AND (E987-WH & 710-GN) MUST
L85 1 BK-18
L85 S BE TWISTED TOGETHER AT LEAST 1 TURN PER 25mm
105-RD 201-BK-18 201-BK-18 U 496-WH-18 2 BK-18
105-RD 201-BK-18 2
L12 L12 UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
L11 201-BK-18 1 S
L11 NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
L11 L11 L11 496-WH-18 4 201-BK-18 B BK-18 GROUND (23) HYDRAULIC
K933-BU-18 5 K933-BU-18 A OR-18 +8V TEMP SENSOR NOTE B: PROVIDES 3RD FUNCTION WITH JOYSTICK CONTROL
442-GY-18 3 442-GY-18 C WH-18 SIGNAL 100-3055 NOTE C: 824G AND 825G ONLY

CONN 1
6 NOTE D: 826G ONLY
D49118
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

THIS SCHEMATIC IS FOR THE 824G WHEEL TRACTOR, 825G SOIL COMPACTOR
AND 826G LANDFILL COMPACTOR ELECTRICAL SYSTEM
MEDIA NUMBER: SENR1339
SCHEMATIC PART NUMBER: 128-1172, CHANGE: 00
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter
in neutral and with parking brake set.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
MACHINE HARNESS CONNECTOR AND
COMPONENT LOCATIONS
VIEW ALL CALLOUTS

1 3 6 8 11 15 16 18 20 22 B 21 26 28 E 30

2 4 5 9 10 14 17 19 A 23 C 24 D 27 25 29

2 3 6 9 10 11 15 16 19 B C A D E 22 26 30

1 4 5 8 14 17 18 20 21 23 24 27 25 28 29