TM 10-3930-659-20 10-12.    LEFT BRAKE VALVE-TO-RIGHT BRAKE VALVE HOSES AND FITTINGS REPLACEMENT. 4. Install new preformed packing (16) and elbow (19) on left brake valve (14). 5. Install new preformed packing (9) and tee (8) on right brake valve (10). 6. Install two new preformed packings (7 and 20) and hose (5) on tee (8) and elbow (19). FOLLOW-ON TASKS: • Install low brake pressure switch (see paragraph 6-36). • Bleed brakes (see paragraph 10-17). • Install right side cab skirt (see paragraph 14-6). • Remove frame locking bar (see TM 10-3930-659-10). TA706954 10-37