TM10-3930-660-20 12-5. SERVICE BRAKE SYSTEM - BLEEDING This task covers: Brake bleeding (purging air) Initial Setup Tools Materials/Parts Tool Kit, Automotive Mechanics Clear Container, 1 Gal. Two Hoses, 1/4 I.D. x 18 inch Equipment  Condition Hydraulic Oil (APP. C, Item 35) Vehicle parked on level ground. Parking brake engaged. Personnel  Required Two Personnel BLEEDING  PROCEDURE 1. PLACE TRANSMISSION IN NEUTRAL AND START  ENGINE. Bleed each brake caliper (1) separately. If bleeding of more than one caliper is necessary, always begin with caliper furthest away from service brake control valve and work in to the closest. 2. INSTALL ONE TRANSPARENT HOSE OVER EACH BRAKE BLEEDER VALVE (2) AND (3). PLACE HOSE ENDS IN CLEAR CONTAINER HALF FILLED WITH HYDRAULIC OIL. DO not  bleed  brakes  without  bleeder hoses over brake bleeder valves (2) and (3) . The vehicle is equipped with a power braking system. Without bleeder hoses attached, hydraulic oil can shoot considerable distances and cause injury. Always wear proper eye protection when bleeding  brakes. 12-10