Introducing the component of an automatic transmission called the servo assembly includes a brief opening description. Servo assembly’s don’t necessarily have to be replaced in a rebuilt transmission, but they certainly should be upgraded to match the duties of your vehicle.
A hydraulic servo-mechanism for an automatic transmission, including a hydraulic servo for applying a brake band to engage a band to a clutch drum. The hydraulic servo includes a rod which is selectively positionable to an apply position for applying the band brake, a standby position in which the rod is released by a predetermined extent in the opposite direction from the apply position, and a retracted position in which the rod is further retracted in the release direction from the standby position to release the band brake.
Short article, yes. Keep tuned in to our GotTransmissions.com Blog for the next 2 segments on servo assembly’s, the history and how they work. Get a cup of coffee and relax while you read this post and the rest of the series to come.