TM 10-3930-659-20 7-16. TRANSMISSION OIL COOLER BACKFLUSH. This task Backflush INITIAL SETUP: Equipment Conditions: Materials/Parts: •    Parking brake set (see TM 10-3930-659-10). • Rags (Item 27, Appendix C) •    Left engine upper sideshield opened (see • Eight preformed packings TM 10-3930-659-10). •    Left engine lower sideshield removed (see Personnel Required:  Two paragraph 14-16). •    Window  washer  plate  removed  (see  para-   References: graph 16-9). • TM 10-3930-659-10 Tools/Test Equipment: •    General mechanic's tool kit (Item 44, Appendix F) •    Plug (three) (Item 31, Appendix F) NOTE A  suitable  container  should  be  used  to  catch  any  draining  hydraulic  fluid. Ensure that all spills are properly cleaned. BACKFLUSH 1. Remove     screw     (1)     and     clamp     (2)     from transmission  thermal  bypass  valve  (4).    Move hose aside. TA707354 7-50