OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - CONTINUED
Table 1. Operator Preventive Maintenance Checks and Services (PMCS) for DSWR - Continued.
NOT FULLY MISSION
Check for coolant leakage at radiator
hoses and water pump.
a. A small amount of coolant leakage Class III coolant leaks are
across the surface of the water pump evident.
seals is normal. This leakage is
required in order to provide lubrica-
tion for this type of seal.
b. A hole is provided in the water pump
housing in order to allow this cool-
ant/seal lubricant to drain from the
c. Intermittent leakage of small
amounts of coolant from this hole
indicates normal operation. It is not
an indication of water pump seal
failure or a faulty water pump.