TM 10-4930-351-14
UNIT MAINTENANCE
ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM MODEL M100A1
REPLACE DIFFERENTIAL PRESSURE GAUGE AND/OR INLET AND OUTLET LINES
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Tool Kit, General Mechanics
Cloth, Lint Free (WP 0116 00, Item 4)
(WP 0113 00, Item 1)
Sealant, Thread, LH-150 (WP 0116 00, Item 24)
Chemical and Oil Protective Gloves
Washer, Lock (WP 0117 00, Item 134)
(WP 0113 00, Item 2)
Goggles (WP 0113 00, Item 2)
Equipment Condition
Liquid Fuel Filter-Separator defueled
WARNING
Death or personal injury may result from the explosion of fuel fumes exposed to an
open flame or spark, or to static discharge. Do not permit smoking, any open flame,
or spark producing equipment within fifty (50) feet of the liquid fuel filter-
separator. Ensure all equipments are well grounded prior to commencing any
operation or maintenance task.
Rubber gloves should be worn when handling fueling system components due to the
toxic effects of some fuel additives.
Serious eye and skin injury could occur from venting of fuel when manual vent
valve is opened. Wear suitable protective clothing and eye protection.
NOTE
Even with the liquid fuel filter-separator defueled, some fuel will remain in the diverter
cavity after defueling.
REMOVAL OF INLET AND OUTLET LINES
1.
Connect the liquid fuel filter-separator grounding cable (1) to a ground rod.
2.
Depress and latch open the manual vent valve (2) to relieve any pressure from the filter vessel (3).
3.
Drain fuel from diverter cavity into a suitable container by removing filter vessel gravity drain plug (4).
4.
Dispose of fuel in accordance with the local SOP.
5.
Loosen and separate flare nuts (5) on both sides of the differential pressure gauge (6) and on the inlet and outlet port
connectors (7, 8) of the filter vessel (3).
6.
Blow through the lines to ensure they are clear.
INSTALLATION OF INLET AND OUTLET LINES
1.
Clean threads of the flare nuts (5), differential pressure gauge (6) and the inlet and outlet ports (7, 8).
2.
Position the inlet line (9) and/or outlet line (10) and loosely attach flare nuts (5).
3.
Tighten flare nuts (5) on each side of the differential pressure gauge (6) and on the inlet and outlet port connectors (7, 8).
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