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• drum brakes—5/8 to 3/4 inch (16 to • disc brakes—7/8 to 1-1/8 inch (22 3.3 If the free-stroke is incorrect, remove the , Ref. 5) from the slack adjuster housing. If equipped with a ), carefully in- sert a screwdriver and raise the relief cap CAUTION Before turning the adjusting nut, remove the 3.4 Turn the adjusting nut one-eighth turn, as . Measure the stroke again, and adjust until correct. CAUTION Do not make the adjusted chamber stroke too 3.5 If removed, install the pawl, pawl spring, 4. Check for correct brake chamber stroke. A B 09/27/94 f420180a NOTE: For a drum brake, A minus B must equal 5/8 to A. With the brakes applied, measure this distance. Fig. 5, Measuring Free-Stroke f420693a 09/27/94 A A. Insert screwdriver here. Fig. 6, Pull-Pawl Assembly (sectional view) A B f420181a 07/05/95 A. Shorten stroke. B. Lengthen stroke. Fig. 7, Brake Stroke Adjusting Brakes 42 Cargo Maintenance Manual, January 2000 42/6 |