Fluid Pump: Description and Operation

HYDRAULIC SYSTEM





Fluid Pump
- The fluid pump provides the fluid pressure required to charge the torque converter, main control assembly, transmission cooling system, lubrication system and apply devices.
- The fluid pump is a positive displacement, gear and crescent-type pump.
- The fluid pump is driven by the torque converter cover hub.





Oil Strainer
- All fluid drawn from the transmission fluid pan by the oil fluid pump passes through the fluid strainer.
- The strainer and its accompanying seals are part of the fluid path from the sump (pan) to the fluid pump.
- The strainer has a bypass section which allows fluid vented at the main regulator valve to be recirculated to the fluid pump, without passing through the strainer.