Drum brake lecture 3

When do the majority of Duo Servo drum brake self adjust?

• When driving over 30mph

• When pumping the brake pedal

• In reverse

• They do not self adjust

Technician A states that if the brake shoes are out of adjustment it could cause a low brake pedal. Technician B states that the star wheel adjuster should not be a serviced item when working on drum brakes. Who is right?

• Technician A

• Technician B

• Both

• Neither

True or False:

When removing a tinnerman nut, you must retain and re-install when you install the drum.

• True

• False