Change in force: C 2 TM 5-3820-241-12 *C 2 HEADQUARTERS CHANGE DEPARTMENT OF THE ARMY No.  2 Washington D.C., 11 May 1992 Operator and Organizational Maintenance Manual DRILL, PNEUMATIC, DRIFTER: BOOM-TYPE; CRAWLER-MOUNTED, SELF-PROPELLED JOY MODEL RAM-MS-5/450A DR NSN 3820-00-445-3766 NOTE The equipment/system  described herein is    non-metric    and    does    not    require metric common or special tools: therefore,  metric  units  are  not  supplied. For   clarity,   operator   and   maintenance instructions will also remain non-metric. PURPOSE The  purpose  of  this  change  is  to  incorporate  operation and   maintenance   data   for   the   220-lb   class   crawler- mounted drifter drill retrofit kit. HOW TO USE THIS CHANGE To  determine  if  your  crawler-mounted  drill  is  equipped with  the  retrofit  kit.    check  the  part  number  stamped  on the   gearbox   mounting   plate.      If   the   part   number   is "20010", your unit is equipped with the retrofit kit.  Follow the   instructions   included   in   this   change   package   for operation,  preventive  maintenance,  and  maintenance  of the feedshell assembly and drifter drill. TM 5-3820-241-12, 19 July 1974, is changed as follows: Page i. Add  the  following  to  the  Table  of  Contents  immediately before Appendix A: .CHAPTER 5.  MAINTENANCE INSTRUCTIONS FOR UNITS EQUIPPED WITH RETROFIT KIT Section I. Maintenance of Pneumatic System, paragraphs 5-1 5-7 *This change supersedes Change 1, 23 April 1990. Section II.  Maintenance of the Boom Frame and Drill Guide Assembly, paragraphs 5-8 5-12 Section    III.        Maintenance    of    the    Feed    and Leveling Mechanism, paragraphs 5-13 5-16 Add    the    following    to    the    Table    of    Contents immediately after Appendix B: .APPENDIX  C.  COMPONENTS  OF  END  ITEM AND BASIC ISSUE ITEMS LISTS .APPENDIX  D.    EXPENDABLE  AND  DURABLE ITEMS LIST Page 1-1. Paragraph 1-2 is superseded as follows: 1-2. Maintenance Forms, Records, and Reports Department of the Army forms  and  procedures  used  for equipment  maintenance  will  be  those  prescribed  by  DA Pam    738-750,    The    Army    Maintenance    Management System (TAMMS). Paragraph 1-3 is superseded as follows: 1-3. Reporting Errors and Recommending Improvements You   can   help   improve   this   manual.      If   you   find   any mistakes  or  know  of  a  way  to  improve  the  procedures, please  let  us  know.    Mail  your  letter  or  DA  Form  2028 (Recommended    Changes    to    Publications    and    Blank Forms)    direct    to:    Commander.        U.S.        Army    lank- Automotive Command, Approved for public release; distribution is unlimited. 1