TM 9-2350-277-20-5REPLACE M3 NBC HEATER CONTROL BOX, REGULATOR, ANDBRACKET (M113A3 ONLY)0791 00THIS WORK PACKAGE COVERS:Removal (page 0791 00-1).Installation (page 0791 00-4).INITIAL SETUP:Maintenance LevelUnitTools and Special ToolsGeneral Mechanic’s Tool Kit (WP 0926 00, Item 65)Materials/PartsLockwashers (1)Lockwashers (1)Lockwashers (8)Lockwashers (8)Lockwashers (4)Straps (2)Personnel RequiredUnit MechanicReferencesSee your -10Equipment ConditionEngine stopped (see your -10)Carrier blocked (see your -10)Battery ground strap disconnected (WP 0337 00)Open master switch panel assembly (WP 0260 00)REMOVALNOTETag all leads and cables before removing.1. Remove screw (1), lockwasher (2), and circuit 536 cable (3) from bus bar (4) in distribution box (5). Discard lockwasher.2. Disconnect wiring harness (6) from control box (7).3. Remove four screws (12), four washers (13), four lockwashers (14) and control box (7) from bracket (11). Discardlockwashers.4. Remove four screws (15), washers (16), and cover (17) from control box (7).0791 00-1
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