Section IV. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
INTRODUCTION TO UNIT PMCS TABLE.
Table 4-1 (PMCS) table) has been provided so you can keep your equipment in good operating condition
and ready for its primary mission.
Warnings and Cautions. Always observe the WARNINGS and CAUTIONS appearing in 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.
4-8.2 Explanation of Table Entries.
4-8.2.1 Item No. 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
4-8.2.2 Interval Column. This column tells you when you must do the procedure in the procedure
column. Perform procedures such as "Monthly" or "Quarterly" at the listed calendar interval. Perform
procedures designated by number of hours when the equipment has been operated for that many hours.
4-8.2.3 Item to be Checked or Serviced Column. This column lists the item to be checked or serviced.
4-8.2.4 Procedure Column. This column gives the procedures for checking or servicing the item listed
in the item to be checked or serviced column. You must perform the procedure to know if the power
plant is ready or available for its intended mission or operation. You must do the procedure at the time stated
in the interval column.
4-8.2.5 Not Fully Mission Capable if: Column. Information in this column tells you what faults will
keep the power plant from being capable of performing its primary mission. If checks or services show faults
listed in this column, do not return the power plant/power unit to service until the faults have been corrected.
Other Table Entries. Be sure to observe all special information and notes that appear in the
4-8.4 Special Instructions.
a. Trailer, generator, and engine PMCS must be done along with the Power Plant PMCS. Refer to
TM 9-2330-202-14&P for trailer PMCS. Refer to TM 9-6115-639-24 for generator PMCS.
b. Preventive maintenance is not limited to performing the checks and services listed in the PMCS
table. Covering unused receptacles, stowing unused accessories, and other routine procedures
such as equipment inventory, cleaning components, and touch-up painting are not listed in the
table. These are things you should do any time you see that they need to be done. If a routine
check is listed in the PMCS table, it is because experience has shown that problems may occur
with that item. Take along tools and cleaning cloths needed to perform the required checks and
services. Figure 4-3 is a routing diagram that shows the locations of the items to be
checked/serviced. AN/MJQ-43 is shown but is applicable to AN/MJQ-42. The callout numbers
on Figure 4-3 correspond to the numbers listed in the Item No. column of Table 4-1.