﻿GET_GEVOMechL2_06_01_01_27 - STEP-BY-STEP Cont Screen
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5. With the piston rod fully retracted, adjust the slack adjuster to provide 1/4 inch (6.4 mm) clearance between the brake shoe and wheel, then replace the slack adjuster pin and rotate the pin retainer into place over the pin.

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<b>Note: </b>If a slack adjuster is near the adjustment limit, check for excessively worn brake shoes or brake linkage components.

3
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Replace worn or damaged parts as needed.

4
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6. Open the truck air cut-out to supply air pressure to the brake system.

5
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<b>Note: </b>Apply and release the air brakes at least twice to check for proper operation of the adjusted air brakes.

6
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<b>Warning:</b> Verify that cylinder piston-rod travel does not exceed 6-1/2 inches (165 mm). 

7
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Piston rod travel beyond 6-1/2 inches (165 mm) may cause inadequate braking force against the wheels.

8
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7. Check the brake-cylinder piston-rod travel and brake shoe-to-wheel clearances at ALL truck wheels.

9
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<b>Note: </b>Nominal piston-rod travel range is between 2-1/2 and 4-1/2 inches (64 and 114 mm).

10
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Brake shoe-to-wheel clearance is 1/4 inch (6.4 mm). 

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8. If readjustment is required, repeat steps 3 through 7.






