SECTION III UNIT PREVENTIVE MAINTENANCE CHECKS AND
The lubrication instructions and hardtime intervals contained in figure 4-7 are mandatory This refrigeration unit is not
enrolled in the Army Oil Analysis Program HARDTIME INTERVALS APPLY.
Preventive Maintenance Checks and Services (PMCS) are essential to the efficient operation of the refrigeration unit and
to prevent possible damage that might occur through neglect or failure to observe warning symptoms in a timely manner.
Intervals are determined by hours m operation expressed m applicable units of measure. The Preventive Maintenance
Checks and Services Table 4-1 lists procedures done first or most frequently.
a. Warnings and Cautions. Always observe the warnings and cautions appearing m your PMCS Table. Warnings
and cautions appear before applicable procedures. You must observe these warnings and cautions to prevent serious
injury to yourself and others or prevent your equipment from being damaged.
b. Explanation of Table Entries.
(1) 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 m the order that you must do checks and services for the intervals listed.
(2) Interval Column. This column tells you when you must do the procedure in the procedure column BEFORE
procedures must be done 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 When a check and service procedure is required for
both WEEKLY and BEFORE intervals, it is not necessary to do the procedure twice if the equipment is operating during
the WEEKLY period
(3) Location. Check/Service Column This column provides the location and the item to be checked or serviced.
The item location is underlined.
(4) Procedure Column. This column gives the procedure you must do to check or service the item listed in the
Check/Service column to know if the equipment is ready or available for its intended mission or for operation You must
do the procedure at the time stated m the interval column.
(5) Not Fully Mission Capable If: Column. Information in this column tells you what faults will keep your
equipment from being capable of performing its primary mission If you made a check and service procedure that shows
faults listed m this column, do not operate the equipment Follow standard operating procedures for maintaining the
equipment or reporting equipment failure.