PUMP A 0024027 - Caterpillar

Illustration 2 g00850889
(1) Flow compensator spool (2) Orifice
Make sure that flow compensator spool (1) moves freely.
Repair the compensator valve, if necessary.
Make sure that orifice (2) is free of debris.
Make sure that the pump is destroking. Ensure that the swashplate is not blocked and ensure that the actuator piston is not stuck.
Repair the pump, if necessary.There Is A Pause Before Pressure Is Achieved In All The Circuits.
There may be air in the load sensing signal circuit.
Purge the air from the hydraulic system by cycling the system several times.
Make sure that the flow compensator spool in the compensator valve is adjusted correctly.
Perform the Margin Pressure Test.ReferenceRefer to Testing and