COMPONENT OPERATION / Pump Device PILOT PUMP Drive gear (1) is driven by the engine through the transmission, which in turn rotates driven gear (2) as they are meshed together. 1 - Drive Gear 2 - Driven Gear PUMP DELIVERY PRESSURE SENSOR This sensor detects pump delivery pressures, which are used in order to control various operations. When oil pressure is applied onto diaphragm (6), diaphragm (6) is deformed. The deformation of diaphragm (6) is detected as the electrical signals.
3 - Ground 5 - Power Source (5V) 4 - Output 6 - Pressure Receiving Area (Diaphragm) PUMP REGULATOR PRESSURE (FLOW RATE CONTROL PRESSURE) SENSOR This sensor detects pump control pressures, which are used in order to control various operations. When oil pressure is applied onto diaphragm (7), diaphragm (7) is deformed. The deformation of diaphragm (7) is detected as the electrical signals. 7 - Pressure Receiving Area (Diaphragm) 9 - Output Inlet Port 1 2 Outlet Port T137-02-03-005 3 4 5 6 T157-02-03-010 T1J1-03-01-029 8 - Ground 10 - Power Source (5V) T3-1-30 7 8 9 10 7 10