volume contains a general description of the aircraft, information that is not contained in other specialized manuals, and all information about servicing the aircraft. Each of the specialized system volumes of the MIM is further divided into four sections. These sections  are  described  briefly  in  the  following paragraphs. Section I is the same in all volumes for a particular aircraft  MIM.  It  introduces  the  manual  and  usually supplies a list of the changes that apply to the particular volume. Section  II  describes  the  system  and  its components, as well as their operation. Section  III  covers  such  maintenance  as  the removal  and  installation  procedures  and troubleshooting   charts   for   organizational-level maintenance. Section IV covers component repair procedures for intermediate-level maintenance. Figure 2-18 is an example of a page from section III of a MIM. This page shows the basic layout of the  maintenance-coverage  sections  of  the specialized-type manuals. To make it easier for you to locate the material on the page, each component maintenance procedure is identified by a boldface heading (fig. 2-18, A). All removal and installation procedures   provide   a   recommended   manpower requirement   (B)   for   the   supervisors   to   use   in assigning personnel to perform the job. All tools and equipment, other than standard tools, are noted (C) before the maintenance procedure. This allows these items to be drawn from the toolroom before starting the  operation. When consumable materials, such as lubricants, lockwire, and cotter pins, are required during an installation procedure, a listing of these items (D) is made before the procedural steps. Miscellaneous small parts (other than standard Air Force/Navy [AN] specification   and   Military   Specification   [MS] hardware), necessary for removal and installation. also appear in the materials list. As an aid to quality assurance representatives (QARs), those steps in a procedure that require an inspection are in italics (E). NOTE: In some MIMs, the steps in a procedure that require a quality assurance (QA) inspection are underlined. The italicized steps are a very important feature and are summarized (callout F) at the end of each  procedure. The separate sections of these manuals are issued as  separate  publications  under  individual  identifying numbers.  This  is  done  to  make  it  easier  for maintenance personnel to procure, store, file, and use specific parts of the manual. A new format for MIMs was developed with the introduction of manuals for late model aircraft, such as the F-14 and S-3. You should understand this newer format as well as the old because you will use both, depending upon the aircraft on which you are working. Both formats are discussed separately in the following paragraphs. Under the older format, a volume contains several sections. The number of sections in each volume may differ from one model aircraft to another and from one volume to another. In some cases, organizational maintenance  is  covered  in  one  section  and intermediate maintenance in another. In other cases, two   separate   volumes   cover   the   two   levels   of maintenance. In  the  newer  format,  sections  I  and  II  of  all volumes are usually similar in format. Section I is an introduction to the volume. It provides a general description of the manual, including the scope of coverage, format, and arrangement of the included information. Also, it contains a list of the applicable publications  and  technical  directives  required  by maintenance  activities. Section II contains a physical description of the equipment or systems covered in the volume. For example, in the volume   “Powerplant  and  Related Systems of the F-14 Aircraft,” section II contains descriptions and operating instructions for the power plant and its related systems. In some volumes, a section is devoted to any support  and  special  equipment  required  for  the maintenance  of  the  system  covered.  In  other volumes, this information is covered in the section that   pertains   to   the   specific   system.   As   stated previously, the remaining number of sections may differ; however, in all cases these sections contain the  maintenance  information  for  the  included systems. Under  the  newer  format,  the  MIM  is subject-identified in part IV of the manual number code. For example, the manual number codes for the F-14  organizational-level  MIM  are  shown  in  figure 2-18