TM 10-3930-669-10 2-6.  EXPLANATION OF TABLE ENTRIES. a. Item Number Column.  Numbers in this column are for reference.  When completing DA Form 2404 (Equipment Inspection and Maintenance Worksheet), include the item number for the check/service indicating a fault.  Item numbers also appear in the order that you must do checks and services for the intervals listed. b. Interval Column.  This column tells you when you must do the procedure in the procedure column.  BEFORE procedures  must  be  done  immediately  before  you  operate  or  use  the  equipment  for  its  intended  mission.    DURING procedures must be done during the time you are operating or using the equipment for its intended mission.  AFTER procedures must be done immediately after you have operated or used the equipment. c. Location.  Item  to  Check/Service  Column.  This column tells you the location and the item to be checked or serviced.  The item location is underlined. d. Procedure Column.  This column tells you the procedure you must do to check or service the item listed in the Location, Item to Check/Service column. e. Not Fully Mission Capable If: Column.  This column tells you what faults will keep your equipment from being capable of performing its primary mission.  If checks and services show faults listed in this column, do not operate the equipment.  Follow standard operating procedures for maintaining the equipment or reporting equipment failure. f. Other Table Entries.  Be sure to observe all special information and notes that appear in your table. 2-7.  LEAKAGE CLASSIFICATION AND DEFINITION. The following describe the different types/classes of leaks and how they affect the status of the forklift.  Become familiar with them and remember WHEN IN DOUBT, NOTIFY UNIT MAINTENANCE.  Class I and II leaks are considered minor leaks and operations can continue under these conditions.  When operating with these types of leaks, fluid levels must be checked regularly as required in the PMCS.  Class III leaks must be reported to unit maintenance for corrective action.  If there is any doubt about the type of leak, notify unit maintenance. a. Class I Leaks.  Class I leaks are identified by a wetness or discoloration not great enough to form drops.  It is more of a seepage than a leak. b. Class 1 Leaks.  Class II leaks are identified by a flow of fluid great enough to form drops but not great enough to cause the drops to fall from the leak point. c. Class 111 Leaks.  Class III leaks are identified by a flow of fluid great enough to form drops that fall from the leak point. If a Class III leak is discovered and the fluid level is below minimum on the dipstick or sight glass, the forklift cannot be operated until leak is repaired and fluid level is returned to normal. 2-10