Section II. SERVICE UPON RECEIPT
4.1 INSPECTION FOR DAMAGE.
Inspect the liquid fuel filter-separator for damage incurred during shipment. If the equipment has been damaged, report
the damage on SF 365, Report of Discrepancy.
4.2 INSPECTION FOR COMPLETENESS.
Check the liquid fuel filter-separator against the packing slip to see if the shipment is complete. Report all discrepancies
in accordance with the instructions of DA Pam 738-750.
Section III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Section IV. UNIT TROUBLESHOOTING PROCEDURES
This section contains trouble shooting guidelines for locating and correcting faults which may develop in the liquid fuel
filter-separator. Each listed malfunction is followed by inspections or tests to help you determine the appropriate
corrective actions to take. You should perform the tests/inspections and corrective actions in the order listed. This
manual cannot list all of the malfunctions that may occur. If a malfunction is not listed or not corrected by a listed
corrective action, notify your supervisor.
4.4 MALFUNCTION INDEX.
Leak at 3-inch unisex coupling flange at inlet or outlet port.
Unisex defueling coupling leaks at coupling inlet.
Unisex defueling coupling leaks at filter sump boss.
Leak at sight gauge.
Leak at filter vessel cover.
Differential pressure gauge does not operate.
4.5 UNIT TROUBLESHOOTING.
TEST OR INSPECTION
1. Leak at 3-inch unisex coupling flange at inlet or outlet port.
Step 1. Check mounting bolt tightness.
Attempt to tighten all six mounting bolts. Tighten any loose bolt(s), ensuring that all six bolts are tightened
Step 2. Replace inlet or outlet flange O-ring (paragraphs 4.9 and 4.10).