THEORY OF OPERATION - CONTINUED
STEERING SYSTEM - CONTINUED
Steering Piston Pump.
Steering system pump is an automatic piston pump which senses pressure and flow requirements. When steering
circuit is not being used, pump is at low-pressure standby.
Single highest pressure sensed flows to pressure compensator spool. This spool keeps pump output at a level nec-
essary to fulfill requirements for system flow and pressure.