R E P L A C E M A S T E R S W I T C H P A N E L L E A D A S S E M B L Y T O D O M EL I G H T S ( M 5 7 7 A 2 A N D M 1 0 6 8 O N L Y )I N I T I A L S E T UPTools:References:General Mechanics Tool Kit (Item 30, App D)see your -10Materials/Parts:Equipment Conditions:GasketEngine stopped/shutdown (see your -10)GrommetCarrier blocked (see your -10)Self-locking nut (8)Battery ground lead disconnected (page 13-2)Personnel Required:Unit MechanicR E M O VE8. Place master switch panel (4) on distribution1.2.Remove eight locknuts (l), washers (2),screws (3), and master switch panel (4) fromdistribution box (5). Discard locknuts.Disconnect lead assembly (6) from front domelight switch (7), circuit breaker (8), and cir-cuit 38E lead (9).Pull lead assembly (6) with grommet (10)from master switch panel (4). Discardgrommet.Inspect gasket (11). Replace if damaged.I N S T A LL5.6.7.Place new grommet (10) on branch of leadassembly (6) that connects to circuit 38Elead (9).Install lead assembly (6) with grommet (10)in master switch panel (4).Connect lead assembly (6) to circuit 38Elead (9), circuit breaker (8), and front domelight switch (7).F O L L O W - T H R O U G H S T E PS1. Connect battery ground lead (page 13-2).3. Operate dome lights to check that lightsoperate properly (see your -10).2. Turn MASTER SWITCH ON.4. Turn all switches OFF (see your -10).END OF TASKChange 312-67box (5). Secure with eights screws (3),washers (2), and new locknuts (1).3.4.TM 9-2350-261-20-2
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