330D, 336D and 340D Excavators Hydraulic System – Fan Motor Speed (Hydraulic Oil Cooler) – Test and Adjust – Reversible Fan (if equipped)

Table 1
Required Tools    
Part Number     Description     Qty    
9U-7400     Multitach Tool Group     1    
  1. Position the machine on level ground.
  1. Stop the engine.
  1. Install a multitach onto the fan. This will be used in order to monitor the fan speed.
  1. Start the engine.
  1. Place the machine controls at the following settings: AEC switch OFF and engine speed dial “10”.
  1. Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).

    Note: Ensure that the hydraulic activation control lever is in the LOCKED position.

    Illustration 1 g01119002

    Keypad on monitor

    (1) Home key

    (2) Menu key

    (3) Cancel key

    (4) OK key

  1. Press menu key (2) on the keypad.

    Table 2
                                   
        MAIN MENU        
                                   
            SERVICE            
                                   
                                   
                                   
                                   
                                   

  1. Use the right arrow key to highlight the “SERVICE” menu. Press OK key (4) .
  1. Enter the password “FFF2” and press OK key (4).

    Table 3
               
        SERVICE        
        MAINTENANCE        
        PASSWORD CHANGE        
        DIAGNOSTIC        
        ECM INFO        
        STATUS        
        CALIBRATIONS        
               

  1. Use the up/down arrow keys to select “MAINTENANCE”. Press OK key (4).

    Table 4
               
        MAINTENANCE        
        REVERSE FAN        
        FLTR/FLUID INFO        
        RECOMMEND INTERVAL        
        WORK HOUR INFO        
               
               
               

  1. Use the up/down arrow keys to select “REVERSE FAN”. Press OK key (4) .
  1. Follow the instructions in the monitor.
  1. Ensure that the reverse fan performs the following procedure:

    • The fan speed decreases and the engine goes to high idle.

    • After 30 seconds, the fan reverses.

    • After one minute, the engine and reverse fan speed return to max speed. Ensure that the reverse fan speed is 1500 rpm.

    • Stop the reverse fan by pressing the down arrow key. Ensure that the fan resumes normal rotation and speed.