PREVENTIVE
MAINTENANCE
PMCS PROCEDURES.
General. The PMCS procedures are contained in the table below. Perform the procedures
by the numbered sequence on a daily basis when the aiming circle is in use. When not in use,
the aiming circle PMCS procedures should be performed on a monthly basis.
Item Number Column. Checks and services are numbered in chronological order regard-
less of interval. This column shall be used as a source of item numbers for the 'TM Item
Number' column on DA Form 2404, Equipment Inspection and Maintenance Worksheet, in
recording results of PMCS.
Interval Columns. The columns headed `B,' `D,' and `A' contain a dot (.) opposite the
appropriate check. Thus, if a given check is performed before operation a dot is placed
opposite the checks in the `B' column; if the check is accomplished after operation, the dot
is placed in the column headed `A,' and if the same check is made in two or more periods, a
dot is placed in each applicable column.
Item to Be Inspected and Procedure Column.
The items listed in this column are divided
into groups indicating the portion of the equipment of which they are a part. Under these
groupings, the items to be inspected are to be identified by as few words, usually the common
name, as will clearly identify the item. This column contains a brief description of the
procedure by which the check is to be performed. It contains all the information required to
accomplish the checks and services, including appropriate tolerances, adjustment limits, and
instrument and gage readings.
