Brake slack adjuster

A brake slack adjuster comprising:

• a housing having an opening with a gear disposed within said opening, said housing including a bore adjacent to said opening;
• a worm defining an axis, and disposed within said bore engaging said gear, said worm having an end portion with helical teeth;
• an actuator including an outer surface adjacent to said bore and an inner surface having complementary helical teeth engaging said helical teeth of said worm, said actuator having an aperture, and said actuator movable along said axis relative to said worm, wherein said inner and outer surfaces are defined by an arcuate wall;
• an actuator rod having an end disposed within said aperture, and captured in said actuator by a retainer;
• a pawl assembly coacting with said actuator for retaining said actuator in a rotational position relative to said axis;
• and
• a biasing member arranged between said actuator and said bore, urging said actuator into engagement with said end portion of said worm.

A brake slack adjuster comprising:

• a housing having an opening with a gear disposed within said opening, said housing including a bore adjacent to said opening;
• a worm defining an axis, and disposed within said bore engaging said gear, said worm having an end portion with helical teeth;
• an actuator including an outer surface adjacent to said bore and an inner surface having complementary helical teeth engaging said helical teeth of said worm, said actuator movable along said axis relative to said worm;
• a biasing member between said actuator and said bore urging said actuator into engagement with said end portion of said worm;
• and
• a pawl assembly coacting with said actuator for preventing rotational movement of said actuator about said axis relative to said housing.