TM 10-3930-659-20 16-3. DEFROSTER FAN MAINTENANCE. This Task Covers: a.  Removal c. Assembly b.  Disassembly d. Installation Initial Setup: Equipment Conditions: Materials/Parts: • Battery disconnect switch in OFF position • Marker tags (Item 33, Appendix C) (see TM 10-3930-659-10). • Electrical tape (Item 36, Appendix C) • Two lockwashers • Four locknuts Tools/Test Equipment: • General mechanic's tool kit (Item 44, Appendix F) References: • TM 10-3930-659-10 a. REMOVAL NOTE • All   wires   should   be   tagged   before   removal.      Refer   to paragraph 2-18 for tagging Instructions. • Note position of terminal leads to aid during Installation. 1. Remove four screws (8), four terminal leads (7), and defroster fan (1) from bracket (2). TA706970 16-7