SPRING 0909287 - Caterpillar

Table 1
Required Tools    
Part Number    Description    Qty    
   
24 mm (.94 inch) Spanner Wrench     1    
    Cap 13/16-UN     2    
    Container for Measuring     1    
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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Stop the engine.
Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
Illustration 1 g00342112
Swing motor compartment (1) Case drain hose (2) Tee
Disconnect the case drain hose (1) from the tee (2). Place the open end of the case drain hose (1) into the container for measuring.
Install a cap 13/16 - UN into tee (2) of the swivel.
Illustration 2 g00342113
Swing motor (3) Connector (4) Solenoid valve for swing parking brake
Disconnect connector (3) from the solenoid valve for the swing parking brake (4) .
Start the engine and place the power mode switch in POWER MODE position.
Place the engine speed dial at position "10" and AEC switch OFF. Maintain the maximum no-load speed at 1860 50 rpm.Reference: Make reference to Testing and Adjusting, "Operational Checks" for engine rpm settings.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Move the swing control lever slowly and ensure that the swing parking brake is operating properly.
Move the swing control lever fully for one minute and measure the case drain oil.
Stop the engine.
Connect connector (3) to the solenoid valve for swing parking brake (4) .
Repeat this test procedure three times in order to obtain three measurements. For each test procedure, swing the upper structure to a different position.The following values specify the maximum acceptable flow of case drain oil when the swing relief valves are set at the correct pressure specification. New swing motor ... 30 L/min (7.9 US gpm) Rebuilt swing motor ... 35 L/min (9.2 US gpm)Reference: Refer to Testing and Adjusting, "Pressure Specifications" for relief valve pressure specifications.