TM 9-4940-568-10
2-26
2-10. LEAKAGE CLASSIFICATION AND DEFINITION.
Equipment operation is allowable with minor leak (Class I or II). Consideration must
be given to the fluid capacity in the item/system being checked/inspected. When in
doubt, notify the supervisor. When operating with Class I or II leaks, continue to check
fluid levels as required in the PMCS. Class III leaks should be repaired using tools
available, if possible. If not, use “Not Fully Mission Capable” column criteria.
NOTE
If leakage is detected, further investigation is needed to determine the location and
cause of the leak. If there is any doubt, contact your supervisor or Unit Maintenance.
a.
Class I. Leakage of fluid as indicated by wetness or discoloration not great enough to form drops.
b.
Class II. Leakage of fluid great enough to form drops but not enough to cause drops that fall from item
being checked/inspected.
c.
Class III. Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
Try to fix leak using tools available.
2-11. OPERATORS PREVENTIVE MAINTENANCE CHECKS AND SERVICES
(PMCS) TABLES.
Generator set engine must be shut off before performing PMCS walkaround. Severe
injury to personnel may result.
Refer to Table 2-1 through 2-5 for Operator’s Preventive Maintenance Checks and Services (PMCS) for the FRS. The
routing diagram (Figure 2-13) will be of help to complete the PMCS. It shows the general path an operator will follow
to complete the PMCS.
