TM 10-3930-659-20 10-17.    BRAKE SYSTEM BLEEDING. 3. Start engine and run at slow engine idle speed (see TM 10-3930-659-10). 4. Press and hold brake pedal.  Open bleed screw (2) allowing hydraulic fluid to flow Into suitable container. NOTE If   air   bubbles   are   present   for   more   than   three   minutes,   stop   bleeding procedure and check for loose connections or leaks. 5. When hydraulic fluid contains no air bubbles, close bleed screw (2) and disconnect nonmetallic tubing (1). 6. Install cap (3) on bleed screw (2). 7. Release brake pedal and shut down engine (see TM 10-3930-659-10). FOLLOW-ON TASKS: • Check hydraulic reservoir fluid level and fill as necessary (see TM 10-3930-659-10). • Install loader frame cover (see paragraph 14-11). • Remove frame locking bar (see TM 10-3930-659-10). TA706964 10-50