TM 9-2330-275-14&P4-20. REAR DISTRIBUTION BOX MAINTENANCE (M689 AND M840).This Task Covers:a. Removald. Assemblye. Installationc. Cleaning and InspectionInitial Setup:Equipment Conditions:Materials/Parts:l Intervehicular cable disconnected from towingl Solder (Item 13, Appendix E)vehicle and distribution box (para 2-11).l Dry cleaning advent (Item 14, Appendix E)Marker tags (Item 16, Appendix E)Tools/Test EquipmentOne bushingTwo gasketsl General mechanic’s tool kitTwenty-two lockwashersl Common no. 1 shop set1.Remove tan screws (8), Iockwashers (9), and cover (7) from rear distribution box (12). Discard Iockwashers.2.Remove four screws (15), Iockwashers (13), washers (14), and rear distribution box (12) from rear doily.b.DISASSEMBLY1.Remove retaining nut (11) from rear of connector (4).2.Tag and disconnect wires of branched wiring harness (18) from connectors (4 and 23).3.Remove branched wiring harness (18) and grommet (17) from cover (7).4.Remove four nuts (10), screws (1), lockwashers (2), cover (3), connector (4), bushing (5), and gasket (6) fromcover (7). Discard Iockwashers, bushing, and gasket.5.Remove four nuts(16), screws (21), lockwashers (20), connector (23), cover(22), and gasket (19)from cover(7).Discard Iockwashers and gasket.WARNINGDry cleaning solvent P-D-680, is toxic and flammable. Always wear protective gogglesand gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, andclothes, and DO NOT breathe vapors DO NOT use near open flame or excessive heat.The solvent’s flash point is 100°F-138°F (38°C-59°C). If you become dizzy whileusing cleaning solvent immediately get fresh air and medical help. If solvent contactseyes, immediately wash your eyes and get medical aid.1 .Clean metal parts with dry cleaning solvent.4-42
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
