TM 9-2320-209-20-3-2 13-15. BLEEDING SERVICE BRAKE SYSTEM USING BLEEDER TANK. TOOLS: 3/4-inch open end wrench Bleeder tank 3/8-inch open end wrench Adapter, pressure tank-to-master 7/16-inch box end wrench cylinder, pn 11660069 Bleeding hose Quick-disconnect fitting, hose to Transparent container, 2-quart adapter Flexible neck oil filler can SUPPLIES: Hydraulic brake fluid, type HB, VV-B-680 Clean cloth PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Connecting Bleeding Tank. 1. Open master cylinder access hatch (1). 2. Using clean cloth, clean area around master cylinder filler cap (2). 3. Using 3/8-inch open end wrench, unscrew tube nut (3) and take off hydraulic tube (4). 4. Using 3/4-inch open end wrench, unscrew and take off master cylinder filler cap (2). 5. Using flexible neck filler can, fill master cylinder (5) to 1/2-inch from top. Fill with hydraulic brake fluid. GO TO FRAME 2 13-117