TM 9-2320-361-34 Section VI. PIPELINE CONSTRUCTION BODY MAINTENANCE I 15-50. PIPELINE CONSTRUCTION BODY MAINTENANCE INDEX PARA. TITLE PAGE NO. NO. 15-51. Pipeline Construction Body Maintenance 15-215 15-52. Pipeline Construction ‘Ibolbox Maintenance 15-222 15-53. Pipeline Construction Tailboard Roller Maintenance 15-226 15-216