TM 9-2350-277-20-5REPLACE NBC AIR PURIFIER AND FRAME (M113A3 ONLY) 0775 00THIS WORK PACKAGE COVERS:Removal (page 0775 00-1).Installation (page 0775 00-2).INITIAL SETUP:Maintenance LevelUnitTools and Special ToolsGeneral Mechanic’s Tool Kit (WP 0926 00, Item 65)Materials/PartsLockwasherLockwasherLockwasherLockwashers (5)Lockwashers (20)Personnel RequiredUnit MechanicReferencesSee your -10See FM 21-40TM 3-6680-316-10Equipment ConditionEngine stopped (see your -10)Carrier blocked (see your -10)Battery ground strap disconnected (WP 0337 00)REMOVALWARNINGContaminated filters are hazardous to personnel. Use precautions when handling filters (seeFM 21-40). Dispose of filters using trained chemical environment personnel.1. Disconnect power cable (1) from air purifier (2).NOTETo replace the ground lead, the mounting hardware securing the driver’s heater to the weldedframe needs to be removed.2. Remove screw (3), lockwasher (4), and ground lead (5) from air purifier wiring harness connector (2). Install screw backinto connector. Discard lockwasher.3. If ground lead needs to be replaced, remove screw (6), three ground leads (5), lockwasher (7), washer (8), lockwasher(9), and nut (10) securing driver’s heater under welded frame (11). discard lockwashers.4. Disconnect two hoses (12) from air purifier (2).5. Unfasten latch (13) and lift air purifier (2) from frame assembly (14).6. Remove five screws (15), lockwashers (16), washers (17), nuts (18), and frame assembly (14) from five mounts (19) and(20). Discard lockwashers.7. Remove 16 screws (21), 32 washers (22), 16 lockwashers (23), nuts (24), and four mounts (19) from welded frame (11).Discard locknuts.0775 00-1
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