TM 10-4330-232-12&P
Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS).
Q - Quarterly
Interval
Item
No.
Q
Item to be Inspected
Procedures
1
Water Level Sight Gage
Inspect body of sight gage for breaks and
cracks, replace defective sight gage (para.
4-20).
2
Manual Vent Valve
Check that manual vent valve operates
freely and no damage is visible. Replace a
defective manual vent valve (para. 4-19).
3
Water Drain Cock
Check that water drain cock works freely and
no damage is visible. Replace a defective
drain cock (para 4-19).
4
Tank
Inspect tank for rust. Clean and repaint
exposed surfaces.
SECTION IV. UNIT TROUBLESHOOTING
Paragraph
Page
4-10
General .......................................................................................................................
4-5
4-11
Unit Troubleshooting Procedures ................................................................................
4-5
4-10. General. This section contains troubleshooting procedures to determine the probable cause of observed
equipment malfunctions. Test or inspections are provided to isolate the faulty component and corrective actions are
provided to eliminate the malfunction.
4-11. Unit Troubleshooting Procedures. Refer to the symptom index to locate the troubleshooting procedure for the
observed malfunction. The table lists the common malfunctions that may occur during the operation or maintenance of
the filter/separator. Perform the tests or inspections, and the recommended corrective action in the order listed in the
troubleshooting table. If the malfunction is corrected by a specific corrective action, do not continue with the remaining
steps, if any, of the troubleshooting procedure. If the malfunction is not corrected by the listed corrective actions notify
your supervisor.
SYMPTOM INDEX
Symptom
Page
Contaminated fuel at nozzle.................................................................................................................
4-6
No fuel delivery ...................................................................................................................................
4-6
General fuel leakage ............................................................................................................................
4-6
Sudden increase in pressure differential...............................................................................................
4-6
Sudden decrease in pressure differential..............................................................................................
4-7
4-5
