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How Transmissions Work

A properly working transmission:Transmission

  • All hydraulic systems must operate with proper pressure.
  • The hydraulic control system maintains a constant flow to fluid under pressure to control the shifting of the gear train.
  • This facilitates the torque requirements at the drive wheels.
  • The fluid flows through the torque converter and through the transmission.
  • This lubricates the internal parts, and forces the fluid through a cooler located in the radiator tank (the pressure to keep the clutch from slipping is as much as 2000 pounds. If the 100-pound pressure developed by the pump is applied to a piston with a surface area of 20 square inches, the total force will be 2000 pounds).
  • The manual control valve directs control pressure to the holding members and the shift valves.
  • The control pressure is directed to two ports at the manual valve, to the primary valve, to the primary throttle valve, to the throttle booster valve, and under the 1-2 accumulator valve.

With time and wear, most transmissions accumulate road dirt, corrosion, and build-ups that stop any of the above processes. The special lubricants in TSC prevent this from happening for the life of your transmission!