BODY 8J1822 - Caterpillar

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Engine speed dial
Set the engine speed dial at "10".
Position the machine on level ground. Check the visibility and adjust the mirrors for the best vision close to the machine.
Fully depress the service brake pedal until the service brake pedal locks mechanically.
Increase the hydraulic oil temperature to 46° to 60° C (115° to 140° F).
Fully extend the bucket cylinder and place the bucket on the ground.
Stop the engine.
Release the pressure in the hydraulic system.Note: Refer to Testing and Adjusting, "System Pressure - Release".
Raise the left console.
Illustration 2 g03722485
Service connector located on the right side of cab behind the seat
Connect tooling (E) to the service connector.Test Procedure
Start the engine.
Lower the stabilizers, the blade tip, and/or the implement in order to raise the front axle and the rear axle. This action will allow the wheels to turn freely.Note: All tires must be fully off the ground.
Fully extend the bucket cylinder and place the bucket on the ground.
Illustration 3 g02452604
Set the engine speed dial at "1".
Illustration 4 g02446738
Power mode control button located on the soft panel switch
Push down on the power mode control button in order to activate power mode.Note: The indicator light will be illuminated when power mode is activated.
Illustration 5 g02447036
Automatic Engine Speed Control (AESC) as displayed on the programmable function key in the monitor.
Disable the automatic engine speed control through the monitor by pressing the programmable button.
Illustration 6 g03722432
Hydraulic modulation switch on left joystick
Illustration 7 g06174873
Hydraulic modulation medium mode (monitor display)
Select the hydraulic modulation mode as medium. Press the lower front switch on the left joystick to select the hydraulic modulation mode.
The air conditioning should be turned off for the following test.
Start Cat© Electronic Technician (ET) and set the override parameters.
Select the Engine ECM in Electronic Technician.
Select “OK”.
Select “Diagnostics” from the main menu.
Select “Diagnostic Tests”.
Select “Override Parameters”.
Select “Travel Motor Swashplate Angel Limit Solenoid Current Override” and set the current to 0.0 amp.
Select “Travel Forward Select Solenoid Current Override” and turn the solenoid to ON.
Select “Travel Pilot Solenoid Current Override” and set the current to 0.9 amp.
Select “Main Hydraulic Pump Displacement Limit Solenoid Current Override” and set the current to 0.9 amp.
Lower the left console.
Press the travel pedal to the full FORWARD position.
Check the transmission output speed in Cat (ET) for the maximum displacement of the motor. Record the speed in Table 1.
Release the travel pedal.
Select “Travel Motor Swash Plate Angle Limit Solenoid Current Override” and set the current to 0.9 amp.
Press the travel pedal to the full FORWARD position.
Check the transmission output speed in Cat (ET) for the minimum displacement of the motor. Record the speed in Table 1.
Release the travel pedal.
Use Table 1 to calculate the minimum displacement of the travel motor with the following calculation:
Table 3
Calculated Minimum Displacement = [ A x B ] / C A - Physical Maximum DisplacementB - Transmission Output Speed (Maximum Displacement)C - Transmission Output Speed (Minimum Displacement)
If the calculated minimum displacement is not within the target minimum displacement specification shown in Table 1, refer to the "Adjustment Procedure".Adjustment Procedure
Place the machine in the service position with