To check the slack adjusters on S Cam brakes, you should: | Truckers and Bus DriversAir Brakes (CDL) Endorsement | Drivers License Practice Tests | Driverstest.info

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To check the slack adjusters on S Cam brakes, you should:

To check the slack adjusters on S Cam brakes, you should:

Leave the parking brakes on and pull on the slack adjuster.

Drain the air from the system and pull on the slack adjusters.

Wear gloves and pull hard on each slack adjuster.

Make sure the slack adjusters move more than one inch each way.