Section II. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
2-3. General. For the pump unit to be ready for use at all times, it must be inspected systematically so that
defects may be discovered and corrected before they result in serious damage or failure. Figure 2-1 provides a
PMCS routing diagram for the pump unit.
Before You Operate. Always keep in mind the CAUTIONS and WARNINGS. Perform your before (B)
While You Operate.
Always keep in mind the CAUTIONS and WARNINGS. Perform your during (D)
After You Operate. Be sure to perform your after (A) PMCS.
Weekly. Always keep in mind the CAUTIONS and WARNINGS. Perform your weekly (W) PMCS.
Monthly. Always keep in mind the CAUTIONS and WARNINGS. Perform your monthly (M) PMCS.
If You Equipment Fails to Operate. Troubleshoot with proper equipment. Report any deficiencies using
the proper forms. See DA Pam 738-750.
Special Instructions. The following actions apply while performing your PMCS.
(1) Stop operation immediately if deficiency is noted during operation which would damage the
(2) Defects discovered during operation of the equipment should be noted for future correction to be
made as soon as operation has ceased.
2-4. PMCS Procedures.
The following paragraphs describe your PMCS table:
Purpose of PMCS Table. Your Preventive Maintenance Checks and Services table (Table 2-2) lists the
inspections and care your equipment requires to keep it in good operating condition.
Item Number Column. Item numbers are assigned in chronological ascending sequence regardless of
interval designation. These numbers are used for your TM number column on DA Form 2404, Equipment
Inspection and Maintenance Worksheet in recording results of PMCS.
Service Interval Column. The Interval column of your PMCS table tells you when to do certain checks
Item to be Inspected Column. This column lists functional groups and their respective assemblies and
subassemblies. The appropriate check or service procedure follows the specific item to be inspected.
Procedures Column. This column of your PMCS table tells you how to do the required checks and
services. Carefully follow these instructions. If you do not have the tools, or if the procedure tells you
to, have unit maintenance do the work.
After Prolonged Shutdowns. Perform weekly as well as before operations if you are the assigned
operator and have not operated the item since the last weekly or if you are operating the item for the first
Reporting and Correcting Deficiencies, If your equipment does not perform as required, refer to Chapter
3 under Troubleshooting for possible problems. Report any malfunctions or failures on the proper DA
Form 2404, or refer to DA Pam 738-750.