TM 10-3930-659-20 7-16. TRANSMISSION OIL COOLER BACKFLUSH (Con't). 17. Install new preformed packing (10) and hose (5) on tee (9). 18. Install new preformed packing (7) and hose (6) on tee (8). TA707358 19. Install  clamp  (2)  on  transmission  thermal  bypa valve (4) with screw (1). FOLLOW-ON TASKS: • Check  transmission  fluid  level  and  fill  as necessary (see TM 10-3930659-10). • Start engine and check for leaks (see TM 1 3930-659-10). • Install window washer plate (see paragraph 16- • Install  left  engine  lower  sideshield  (see  pa graph 14-16). • Close left engine upper sideshield (see TM 3930-659-10) TA707358 7-54