TM 5-3895-370-14&P4-98. BRAKE ADJUSTMENT (CONT).WARNING·Do not work under distributor unless the wheels of the truck and distributorare chocked, the distributor is on level ground, and the truck engine is shutoff. Failure to chock wheels of truck and distributor could cause seriousinjury or death to personnel·An assistant must be in the truck cab at all times while checking brakesunder distributor to prevent truck movement. Failure to have an assistantin truck cab to prevent truck movement could cause serious injury or deathto personnel.·Do not hook up distributor lunette or distributor safety chains whilechecking brakes under truck. If distributor safety chains or lunette arehooked up, the distributor could be dragged if the truck should move,causing serious injury or death to personnel.(8)With the aid of an assistant, start truck and allowair pressure to build up to 100 psi (689 kPa)minimum.(9)Measure distance between center anchor pin (6)and back of brake chamber (1) (measurement C)with brake in released position. Recordmeasurement.(10)With the aid of an assistant, apply brakes whilemeasuring distance from center of anchor pin (6)to back of brake chamber (1) (measurement D).CAUTION·The adjusted stroke must not exceed 2 in. (50.8 mm) or damage to the brakesmay result.·The adjusted stroke should be as short as possible, but not so short that thefree stroke is less than 5/8 in. (16 mm).NOTEThe difference between measurements D and C is the adjusted chamber stroke.(11)Turn adjusting nut (2) on slack adjuster (3) to adjust the brake. The adjusted stroke length must not exceed 2 in.(50.8 mm).4-266
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