VALVE AS-CHECK 2500739 - Caterpillar

Illustration 1 g00663002
Monitor PanelThis function allows the controller to memorize the corresponding data from the rotation angles of the governor actuator and the no-load engine speed. The controller will determine the target position of the governor actuator.This procedure must be performed when any of the following components have been replaced or the components are reinstalled: The governor actuator, the accelerator cable and the controller.The temperature of the hydraulic oil must be at approximately 50 °C (122 °F).
Enter service code 70. The character display shows the following example: "70 P00". This means "before calibration".
Depress the travel alarm cancel switch (22). The character display shows the following example: 7001This means "governor actuator is moving to the initial position".
When the character display shows the following example, the governor actuator has completed a movement to an initial position: "70 PSP".
At this condition, install the accelerator cable properly, if the cable is not installed.
Start the engine.
Depress the travel alarm cancel switch (22) again. The calibration for the governor actuator will start. During the calibration, the character display displays the following codes:
Table 1
Calibration Codes For The Governor Actuator    
Calibration Codes     Description    
70 P00     Before Calibration    
7001     Shift The Governor Actuator (G/A) To The Initial Position    
70 PSP     The G/A Has Completed A Move To The Initial Position    
7003     Search The G/A Position For High Idle    
7004     Set The G/A Position For High Idle    
7005     Collect The Data Of G/A Positions From The Engine Speed Dial 9 to 2    
7006     Search The G/A Positions For Low Idle    
7007     Collect The Data Of G/A Positions From The Engine Speed Dial Positions 9 To 2    
7008     Confirm The G/A Position For High Idle    
7009     Confirm The G/A Positions From The Engine Speed Dial Positions 9 To 1    
7010     Confirm The G/A Positions From The Engine Speed Dial Positions 2 to 10    
7011     Collect The Data For The Engine Speed Feedback Control    
70 End     Calibration Is Complete    
When the calibration has been completed, the character display shows "70 E nd". Note: In order to stop the calibration in the middle of the process, the power mode