ENGINE AR-CORE 1593459 - Caterpillar

Illustration 1 g00816997
Pump compartment (1) Pressure tap (right pump delivery pressure) (2) Pressure tap (left pump delivery pressure) (3) Pressure tap (power shift pressure)
Connect a 6000 kPa (870 psi) pressure gauge to pressure tap (3) .
Connect a 60000 kPa (8700 psi) pressure gauge to pressure tap (1). Use this pressure gauge to monitor the crossover relief valve pressure setting of the right travel motor.
Connect a 60000 kPa (8700 psi) pressure gauge to pressure tap (2). Use this pressure gauge to monitor the crossover relief valve pressure setting of the left travel motor.
Illustration 2 g00714259
Sprocket (left track) (16) Sprocket (17) FT-2547 Track block assembly
Place track block assembly (17) in sprocket (16) in order to block forward left travel. Refer to Illustration 2.
Start the engine.
Place the machine controls at the following settings: engine speed dial "10" and AEC switch OFF. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for engine rpm settings.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Illustration 3 g00672009
Monitor (A) Message display (B) Keypad (C) Up key (D) Left key (E) Down key (F) Right key (G) Cancel key (H) Set key (I) OK key (J) Menu key
Start Service Mode and input a fixed power shift pressure of 3000 kPa (435 psi).
Press menu key (J) .Note: If more than thirty seconds pass between pushing the keys on the keypad, the menu mode will be cancelled and the previous display will be restored to message display (A) .
Press down key (E) in order to highlight the menu item "SERVICE OPTIONS" on the message display. Press OK key (I) .
Input the password "FFF2". Press left key (D) or right key (F) in order to change the position of the flashing character. Press up key (C) or press down key (E) in order to change the value of the flashing character. Press OK key (I) after the correct password is displayed.
Press down key (E) once in order to highlight the second line on the message display.
Press right key (F) repeatedly until "DEVICE TEST" appears on the message display.
Press down key (E) in order to move down one line on the message display.
Press right key (F) until the "PS PRV - FIXED" appears on the message display.
Press down key (E) .
Press OK key (I). The display on line 4 of the message display will now change to a numeric value. These characters represent the power shift pressure (kPa).
Press left key (D) or right key (F) in order to increase or decrease the numeric value that is displayed on line 4 of the message display. Pressing left key (D) one time decreases the power shift pressure 10 kPa (1.5 psi). Pressing right key (F) one time increases the power shift pressure 10 kPa (1.5 psi).Note: The value for power shift pressure on the monitor may not always match the pressure reading on the pressure gauge. Adjust the value on the monitor until the desired power shift pressure is attained on the pressure gauge that is connected to the