973D Track-Type Loader Power Train Location of Electrical Components Caterpillar


Location of Electrical Components
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973D Track-Type Loader Power Train [KENR6524]
ELECTRICAL AND STARTING SYSTEM
973D Track-Type Loader Power Train Location of Electrical Components
1.1. Parking Brake Switch
2.1. Sensor For The Service Brake Pedal
3.1. Parking Brake Solenoid
4.1. Solenoid For The Pilot Supply For The Transmission
5.1. Steering Pedal Sensors (If Equipped)
6.1. Joystick Steering Control (If Equipped)
7.1. Transmission Lever
8.1. Speed Range Switch (If Equipped)
9.1. Work Mode Switch (If Equipped)
10.1. Horn Button
11.1. Pump Solenoids
12.1. Left Track Motor
13.1. Right Track Motor

The Electrical System Schematic, Parts Manual and Operation and Maintenance Manual should be used in order to locate the electrical components and the connectors.

The following information is a guide to reading the tables on the back of the Electrical System Schematic.

  • The "Component Location" table uses white circles to mark the locations in the profile of the vehicle and in the area views. Alphabetical letters in the "Machine Location" column indicate a general area of the vehicle. Refer to the corresponding footnote at the end of the table for a description of the location.

  • The "Harness Connector Location" table uses white circles to mark the locations in the general view and in the area views. Alphabetical letters in the "Machine Location" column indicate a general area of the vehicle. Refer to the corresponding footnote at the end of the table for a description of the location.




Illustration 1g01947240

(1) Hydrostatic motors

(2) Left side hydrostatic pump

(3) Return manifold for the power train

(4) Right side hydrostatic pump

Parking Brake Switch




Illustration 2g01361048

The switch for parking brake (5) is located on the switch panel to the right of the seat.

Sensor For The Service Brake Pedal




Illustration 3g01434179

Pedal steering configuration




Illustration 4g01434180

Joystick steering configuration

Sensor (6) is a part of the pedal housing.

Parking Brake Solenoid




Illustration 5g01947371

The parking brake solenoid (7) is located on the return manifold. The return manifold is accessible by removing the rubber mat and the access panel in front of the operator seat.

Solenoid For The Pilot Supply For The Transmission




Illustration 6g01947375

The pilot solenoid (8) is located on the return manifold. The return manifold is accessible by removing the rubber mat and the access panel in front of the operator seat.

Steering Pedal Sensors (If Equipped)




Illustration 7g01434225

Pedal steering configuration

Sensor (9) is a part of pedal housing (A) .

Joystick Steering Control (If Equipped)




Illustration 8g01947377

Joystick steering configuration

Joystick steering control (10) is located on the control group console to the left of the operator seat.

Transmission Lever




Illustration 9g01434227

Pedal steering configuration




Illustration 10g01947379

Joystick steering configuration

Transmission lever (11) is located on the control group console to the left of the operator seat.

Speed Range Switch (If Equipped)




Illustration 11g01947382

Joystick steering configuration

Speed range switch (12) is located on the transmission joystick to the left of the operator seat.

Work Mode Switch (If Equipped)




Illustration 12g01434289

Pedal steering configuration

The work mode switch (13) is the rocker switch that is located on the console for the transmission lever.

Horn Button




Illustration 13g01434420

Pedal steering configuration




Illustration 14g01947384

Joystick steering configuration (if equipped)

The horn button (14) is located on the console for the transmission lever.

Pump Solenoids




Illustration 15g01947698

(15) Right hydrostatic pump

(16) Right reverse solenoid

(17) Left hydrostatic pump

(18) Left forward solenoid

(19) Left reverse solenoid

(20) Right forward solenoid

The forward and the reverse solenoids for the left side are located on the left pump. The forward and the reverse solenoids for the right side are located on the right pump. The solenoids allow oil to flow to the left side motor and the right side motor.

Left Track Motor




Illustration 16g01947713

The motor can be accessed by removing the panel that is located on the bottom of the machine.

(21) Left track speed sensor

(22) Travel pressure sensor

(23) Left motor solenoid

The left track speed sensor is located on the back of the left motor.

The travel pressure sensor is located on the back of the left motor.

The left motor solenoid is located on the back of the left motor.

Right Track Motor




Illustration 17g01947715

The motor can be accessed by removing the panel that is located on the bottom of the machine.

(21) Right track speed sensor

(22) Travel pressure sensor

(23) Right motor solenoid

The right track speed sensor is located on the back of the right motor.

The travel pressure sensor is located on the back of the right motor.

The right motor solenoid is located on the back of the right motor.

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