Torque Convertors
This is the typical part used to tie the engine to the torque converter.
What is a flex plate?
This American entrepreneur and businessman is responsible for founding a company that is know today for being the leading name in heavy duty automatic transmissions.
Who is James Allison?
These parts of a plantery gearset are spaced equally from each other and are held in place by a carrier. They mesh between the inner and outer sections of the gearset.
What are planetary gears?
This is the procedure used to check transmission fluid in which you would use the lower set of hash marks on the dip stick.
What is cold check?
This type of transmission has 3 pedals and automates the shifting of the manual gear box.
What is an Autoshift transmission?
This acronym is the short name for automatic transmissions featuring electronic controls.
What is ECAT?
This internal part of the torque converter is always spinning at engine speed.
What is the pump?
This type of automatic transmission functions and controls shifts through the use of pressurized fluid and spring loaded valves.
What is a hydromechanical automatic transmission?
By holding the ring gear, inputing into the sun gear, and outputing to the carrier you would have this scenario.
What is maximum reduction?
This chemical often enters transmissions and causes extensive damage. It can be detected using a test kit.
What is glycol?
This advantage of AMT's relates to the internal components , clutch, and down stream drive train components.
What is reduced wear?
This type of shifting allows for the drivetrain to remain under power through the course of a shift.
What is powershift?
This piece of the torque convertor is responsible for the complete mechanical coupling between the engine and transmission.
What is the lockup clutch?
This type of clutching systems exists in a stack and allows transmission components to be locked to other components when applied and spin freely when disengaged.
What are multiple disc clutches?
This is the result of connecting a component of one planetary gearset to another.
This test is commonly used to determine whether problems are related to the transmission or engine. The test spins the pump at maximum speed while the turbine shaft is held stationary.
What is a stall test?
This component on an AMT mounts in place of the shift tower and is responsible for shifting the gears of the transmission.
What is the xy shifter?
This series of Allison transmissions marks the integration of electronic controls.
What are Allison World Transmissions?
This is the state of flow the fluid inside of torque converter experiences during torque multiplication.
What is vortex flow?
This engineer worked for the Ford Motor Company in the 1940's and 50's, and is responsible for nearly 2 dozen patents relating to compound planetary gearsets.
Who is Howard W. Simpson?
This is the total number of input/output combinations one can achieve from a single planetary gearset.
What is 7?
These three jobs of transmission oil are imperative to proper operation of the transmission.
What is lubrication, hydraulic oil, and heat transfer/cooling?
This component of an AMT is responsible for calculating shifts and controlling the components that make the shift happen.
What is the transmission control unit or transmission ecm?
This program is used to hookup and talk to Allison electronic transmissions. It is often used for datalogging, trouble codes, and running special tests.
What is Allison DOC?
This device is solely responsible for controlling when the stator assembly is locked and when it is allowed to to free wheel.
What is overunning clutch
This part inside of a hydromechanical transmission is responsible for reducing shift shock.
What is a trimmer valve?
This is another name for a planetary gearset.
What is epicyclic gearset?
This tool should never be used when removing or installing filter covers or drain plugs.
What is impact wrench?
This model of transmission is Detroit Diesel's automated manual transmission features an air operated clutch actuator.
What is a DT-12?
This ability of the Allison ECATs allows for the transmission to make adjustments to how the transmission shifts based on loads or driving habits.
What is adaptive shifting?