TM 9-2320-361-20 4-42. BLACKOUT DRIVE LAMP AND HOUSING REPLACEMENT This task covers: a. Blackout Drive Lamp Removal c. Blackout Drive Lamp Housing Installation b. Blackout Drive Lamp Housing Removal d. Blackout Drive Lamp Installation INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All TM 9-2320-361-10 MATERIALS/PARTS TM 9-2320-361-20P Nine lockwashers EQUIPMENT CONDITION Three O-rings Parking brake set (TM 9-2320-361-10). Gasket Hood raised and secured (TM 9-2320-361-10). Battery ground cable disconnected (para. 4-48). a. Blackout Drive Lamp Removal 1. Loosen three screws (2) and remove lens cover (1), three O-rings (9), and gasket (8) from blackout drive lamp housing (4). Discard O-rings (9) and gasket (8). 2. Remove lamp (3) from blackout drive lamp housing (4). b. Blackout Drive Lamp Housing Removal NOTE Tag all wires for installation. 1. Remove wire (5) from connector plug (6). 2. Remove nut (17), lockwasher (18), ground wire (16), mounting washers (19) and (7), and blackout drive lamp housing (4) from bracket (11). Discard lockwasher (18). 3. Remove eight nuts (14), seven lockwashers (15), lockwasher (13), clamp (12), bracket (11), and four shock mounts (10) from plate (20). Discard lockwashers (15) and (13). c. Blackout Drive Lamp Housing Installation 1. Install four shock mounts (10) and bracket (11) on plate (20) with seven new lockwashers (15), clamp (12), new lockwasher (13), and eight nuts (14). 2. Install blackout drive lamp housing (4), mounting washers (19) and (7), ground wire (16), new lockwasher (18), and nut (17) to bracket (11). 3. Connect wire (5) to connector plug (6). d. Blackout Drive Lamp Installation 1. Install lamp (3) in blackout drive lamp housing (4). 2. Install new gasket (8), three new O-rings (9), and lens cover (1) on blackout drive lamp housing (4) with three screws (2). 4-64