TM 5-3810-306-20Section IV. VEHICLE LIGHTS MAINTENANCEBEACON LIGHT ASSEMBLY REPLACEMENTTOOLS: General mechanic’s tool kit: automotive (5180-00-177-7033)SUPPLIES:Lockwashers (Item 2, Appendix C) (2 Required)Petroleum jelly (Item 42, Appendix C)EQUIPMENT CONDITION:Disconnect ground cable at shunt. (Refer to page 8-109.)Cab acoustical foam removed in top rear of cab. (Refer to page 15-2.)REMOVAL:1.REMOVE LENS (2).a.Pry open clip on retaining ring. Removeretaining band (1).B.Lift off lens (2).2.INSPECT LENS (2) FOR DAMAGE. REPLACE ASREQUIRED.3.INSPECT TWO BULBS (3). REPLACE ASREQUIRED.a.Inspect two bulbs (3) for damage. If damaged,do step b.b.Pry up two retaining bands (4). Tag anddisconnect two wires (5) to bulb (3). Discardbulb (3).4.REMOVE BASE ASSEMBLY (10).a.Tag and disconnect electrical wires (11).b.Remove two nuts (7), lockwashers (8),flatwashers (12) and screws (9) securing baseassembly (10) to cab. Discard lockwashers (8).c.Lift base assembly (10) from cab roof. Pull wires(11) thru access hole.5.INSPECT PARTS FOR DAMAGE. REPLACE ASREQUIRED.8-38
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