PLATE 1305543 - Caterpillar

Work Tool Pump
Before any tests are performed, prepare the machine. Refer to Testing and Adjusting, "Machine Preparation". Before any tests are performed, visually inspect the complete hydraulic system for oil leaks and damaged parts. Refer to Testing and Adjusting, "Visual Inspection".
Illustration 3 g01364411
Install the 9U-7400 Multitach Tool Gp in front of opening (1) in order to measure engine RPM. Use reflective tape on the pulley for the engine crankcase to measure the RPM.
Stop the engine. Release the system pressure before attempting any adjustment. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release" for the proper procedure.
Illustration 4 g01364420
Raise the cab. Refer to the Operation and Maintenance Manual, "Cab Support Operation" for the proper procedure. Disconnect hose assembly (2) and install tooling (B) in-line between the outlet of the work tool pump and the inlet of the control valve.Note: Damage to the pump and damage to the hoses may result from the high pressure that is created by the flow meter valve.Note: The flow meter valve must be fully open before installing the flow meter in-line.
Lower the cab. Route the hoses so that the cab does not rest on any of the hoses. Route the test lines and cables in order to avoid pinching the hydraulic lines when the cab is lowered. Secure the test instruments so that the test instruments are visible during the test.
Fasten the seat belt. Lower the armrest.
Start the engine. Run the engine at HIGH IDLE.Note: The hydraulic oil temperature rises quickly as engine starts.
The oil in the hydraulic system must be at an operating temperature of 50° 10°C (122° 18°F) throughout test.
Set the pump outlet pressure to 18000 1000 kPa (2611 145 psi) by slowly adjusting the load valve on the flow meter.Note: Maintain the pump outlet pressure to 18000 1000 kPa (2611 145 psi) throughout the test.
Set the engine speed to 2000 10 rpm.Note: If necessary, readjust the pressure to 18000 1000 kPa (2611 145 psi).
Refer to Table 5 for the flow specification. Replace the pump if the specification is not met.
Unload the pump by adjusting the flow meter valve to the fully open position.
Stop the machine. Remove the Multitach Tool Gp (A) and the Portable Hydraulic Tester (B). Reconnect hydraulic lines.
Table 4
System Requirements    
Test     Specification    
Pump Outlet Pressure    
18000 1000 kPa (2611 145 psi)    
Engine Speed     2000 10 RPM    
Oil Temperature    
50° 10°C (122° 18°F)    
Table 5
Work Tool Pump    
Machine Model     Minimum Flow    
267B/ 277B/ 287B    
50.9 L/min (13.45 US gpm)    
287B (1)     N/A    
( 1 ) HF XPSPump Flow Test for the High Flow Auxiliary Circuit
In order to test the flow in the high flow auxiliary circuit, install one 6V-9746 O-Ring Seal into each 6V-9969 Coupling As. Install one 107-1341 Adapter into each 6V-9969 Coupling As. Install one 3D-2824 O-Ring Seal onto the 6V-5258 Adapters. Install the 6V-5258 Adapters onto the