TM 9-2320-209-20-3-4 Operator and Organizational Maintenance Manual for Lead-Acid Storage Batteries . . . . . . . . TM 9-6140-200-12 Army Materiel Maintenance Concepts and Policies . . . . . . . . . . . . . . . . . . . . . . . . . AR 750-1 Operator’s Manual: Welding Theory and Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TM 9-237 Operator’s and Organizational Maintenance Manual (Including Repair Parts and Special Tools List) For Decontamination Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TM 3-4230-204-12&P Materials Used for Cleaning, Preserving, Abrading and Cementing Ordnance Materiel and Related Materials Including Chemicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . TM 9-247 A-4