TM10-3930-660-20 8-14. BLACKOUT/SERVICE LIGHT SWITCH - REPLACE This task covers: a. Removal b. Installation Initial Setup Tools Materials/Parts Tool Kit, Automotive Mechanics Lockwashers  (8) Loctite 242 (App. C, Item 39) Equipment  Condition Vehicle parked on level ground. Negative battery cable disconnected~ para.  8-44. 1. REMOVE HANDLES (l). Remove three screws (2) securing three handles (1) to light switch (3). 2. RAISE INSTRUMENT PANEL (4). a. Remove four capscrews (5) from instrument  panel  (4). b. Raise instrument panel (4) to provide access to rear of blackout/service light switch (3). 3. REMOVE BLACKOUT/SERVICE LIGHT SWITCH (3). a. b. Disconnect harness plug (6) from rear of blackout service light switch  (3). Remove screws (7) and lockwashers (8) to separate switch from instrument  panel  (4). Discard lockwasher  (8). 8-32