ASE A2 Questions and Answers Already
Passed
What is the purpose of a brake band? ✔✔It stops and holds the drum that is connected to a
member of the planetary gearset.
What are brake bands made out of? ✔✔Brake bands are flexible steel plates lined with friction
material. That material can be organic or semi-metallic.
What aids in brake band hear dissipation? ✔✔The friction material absorbs trans fluid.
When the brake band tightens around the drum, why doesnt trans fluid get trapped in between
the two surfaces? ✔✔Trans fluid is squeezed out into grooves cut in the lining.
What is the benefit of using a softer metal like iron for the drum? ✔✔The dimpled surface aids
in both clamping force and heat dissapation.
How can you tell if a drum is made out of harder metal? ✔✔The surface is usually smooth.
, What are the benefits of having a double wrapped band? ✔✔Double wrapped bands have more
clamping force and require less hydraulic pressure to produce the same amount of stopping
power.
What happens as the brake band wears? ✔✔A gap forms between the band and drum, causing
slippage.
What controls brake band application? ✔✔A hydraulically controlled servo.
What sets a clutch apart from a brake band? Why are they two separate style components?
✔✔Brake bands only stop and hold. Clutches stop, hold, and drive.
Name three different components that automatic transmissions use to control and lubricate the
transmission. ✔✔Pressure Regulator Valve
Governor Valve
Throttle Pressure Valve
Governor pressure increases with ___________. ✔✔Vehicle speed.
Passed
What is the purpose of a brake band? ✔✔It stops and holds the drum that is connected to a
member of the planetary gearset.
What are brake bands made out of? ✔✔Brake bands are flexible steel plates lined with friction
material. That material can be organic or semi-metallic.
What aids in brake band hear dissipation? ✔✔The friction material absorbs trans fluid.
When the brake band tightens around the drum, why doesnt trans fluid get trapped in between
the two surfaces? ✔✔Trans fluid is squeezed out into grooves cut in the lining.
What is the benefit of using a softer metal like iron for the drum? ✔✔The dimpled surface aids
in both clamping force and heat dissapation.
How can you tell if a drum is made out of harder metal? ✔✔The surface is usually smooth.
, What are the benefits of having a double wrapped band? ✔✔Double wrapped bands have more
clamping force and require less hydraulic pressure to produce the same amount of stopping
power.
What happens as the brake band wears? ✔✔A gap forms between the band and drum, causing
slippage.
What controls brake band application? ✔✔A hydraulically controlled servo.
What sets a clutch apart from a brake band? Why are they two separate style components?
✔✔Brake bands only stop and hold. Clutches stop, hold, and drive.
Name three different components that automatic transmissions use to control and lubricate the
transmission. ✔✔Pressure Regulator Valve
Governor Valve
Throttle Pressure Valve
Governor pressure increases with ___________. ✔✔Vehicle speed.
