AXLE 6K8921 - Caterpillar

Standard Tools
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Flow meter and Hose
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Cap and PlugThe following table provides a list of the required tools if traditional hand held tools are used in order to perform the following test procedure. These tools will be used in order to perform the following test procedure. The flow meter may vary in volume. There are two of the various flow meters that are listed below. The 6V-7788 Flow Meter Gp will be used for the following test.
Table 2
Required Tools    
Tooling     Item     Part Number and Description     Quantity    
A     A1     8T-0454 Flow Meter Gp
0 to 190 L/min (0 to 50 US gpm)     1    
A     A1     6V-7788 Flow Meter Gp
0 to 57 L/min (0 to 15 US gpm)     1    
B     B1     122-6891 Hydraulic Hose     1    
C     C1     6V-9512 Face Seal Plug     1    
D     D1     6V-9832 Cap As     1    Test Procedure
Sudden movement of the machine or release of oil under pressure can cause serious injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the hydraulic system.
Perform the following procedure before you perform the test procedure that follows:
Park the machine on a level area that is clear from all equipment and material.
Verify that the service brake system and the parking brake system are in good working order.
Block the drive wheels in both directions.
Apply the parking brake.
Ensure that the propel lever is in the NEUTRAL position. Ensure that the parking brake is in the ON position.
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The Pump Compartment is Located on the Left Side of the Machine.
Locate the vibratory gear pump on the lower pump stack in the pump compartment.
Assemble 6V-7788 Flow Meter Gp (A1) and 122-6891 Hydraulic Hose (B1) .
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(1) Vibratory pump (2) Supply line to the vibratory motors
Disconnect supply line (2) from gear pump (1). The supply line provides hydraulic flow to the vibratory motors.Note: The cap and the plug are used in order to reduce leakage during this test. If the flow meter is readily available, these additional parts may not be needed for the test.
Use 6V-9512 Face Seal Plug (C1) and 6V-9832 Cap As (D1) in order to cap vibratory pump (1) and plug the supply line (2) temporarily.
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Install 6V-7788 Flow Meter Gp (A1). Attach 122-6891 Hydraulic Hose (B1) to the port for supply line (2) on vibratory pump (1). Attach supply line (2) to the end of the flow meter. Ensure that all of the connections are secure. Secure the flow meter to the machine.
Start the engine. Run the engine at high idle.
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Turn the vibratory switch to the ON position.
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The flow meter should have a reading of 56 1.90 L/min (14.7 0.5 US gpm). If the readings are not within these limits, refer to the troubleshooting section for a possible solution.
Stop the engine.
Disconnect the tooling.