SECTION II. OPERATOR'S PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
GENERAL. The operators PMCS table lists the inspections and
service procedures to properly maintain
the air compressor in good operating condition. Items covered here are appropriate for operator level only. Always
keep in mind the CAUTIONS and WARNINGS before performing checks and services listed in the PMCS table.
2-3. PMCS TABLE FORMAT. The following columns makeup the PMCS table.
No. Each maintenance check is identified by a separate item number. The item column will be used
as a source of item numbers for the "TM Number" column on DA Form 2404 Equipment Inspection and
Maintenance Worksheet, in recording results of
The interval column of the PMCS table identifies when to perform the service check or maintenance.
A dot (*) appears underneath the appropriate column(s) abbreviation:
B --Before Operation
D --During Operation
A --After Operation
Item To Be
This column identifies how to perform the required checks and services.
Carefully follow these instructions, If appropriate tools are not available to operator, organizational maintenance
should perform the work. If your equipment does not perform as required, refer to Chapter 3, Section V.
Troubleshooting for possible problems. Report any malfunctions or failures to organizational maintenance.
d. Equipment Not Ready/Available
This column indicates when and why equipment cannot be used after
completing the specific PMCS.
and mission capable refer to the same status: Equipment is on
hand and is able to perform its combat missions (see DA PAM 738-750).
2-4. SPECIAL INSTRUCTIONS.
a. If the equipment must be kept in continuous operation, check and service only those items that can be check-
ed and serviced without disturbing operation. Make the complete checks and services when the equipment can
be shut down.
b. "Before operation (B)" checks should be limited to those required for consecutive application by an assigned
operator. Perform `Weekly (W)" as well as "Before Operation (B)" PMCS if:
has not been operated since the last weekly PMCS, or;
(2) Compressor is being operated for the first time.
c. Leakage definitions for operator PMCS are classified as follows:
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Leakage of fluid great enough to form drops but not enough to cause drops to drip from item being
Class 111 Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
Equipment operation is allowable with minor leakages (Class I or II). Consider the fluid
capacity in the item system being checked/inspected. When in doubt, notify your supervisor.
When operating with Class I or Class 11 leaks, continue to check fluid levels as required
by PMCS table.
Class III leaks should be reported to your supervisor.