325C Excavator Hydraulic System Fan Motor (Hydraulic Oil Cooler) - Test - Measurement of Case Drain Oil Caterpillar


Fan Motor (Hydraulic Oil Cooler) - Test - Measurement of Case Drain Oil
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Table 1
Required Tools    
Part Number     Description     Qty    
6V-9829     Cap As     1    
    Container for measuring     1    


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "AVSpare Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on AVSpare products.

Dispose of all fluids according to local regulations and mandates.


Note: The fan motor speed must be set to the correct specification before performing this test. Refer to Testing and Adjusting, "Fan Motor Speed (Hydraulic Oil Cooler) - Test and Adjust".

  1. Position the machine on level ground.

  1. Stop the engine.

  1. Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".



    Illustration 1g00818570

    (1) Fan motor

    (2) Case drain hose




    Illustration 2g00818571

    (2) Case drain hose

    (3) Case drain filter

  1. Disconnect case drain hose (2) from case drain filter (3). Install 6V-9829 Cap As on the open fitting of case drain filter (3) .

  1. Place the end of drain hose (2) into the container in order to measure the case drain oil.

  1. Start the engine.

  1. Place the machine controls at the following settings: AEC switch OFF and engine speed dial "10".

    Reference: Refer to Testing And Adjusting, "Engine Performance - Test" for engine rpm settings.

  1. Measure the amount of case drain oil for one minute.

Table 2
Case Drain Oil    
Fan Speed     Amount of Case Drain Oil    
1500 rpm (1)    
1.3 L/min (0.34 US gpm)    
1900 rpm (2)    
1.8 L/min (0.48 US gpm)    
( 1 ) Standard specification
( 2 ) High ambient specification

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