TM 10-4930-351-14
UNIT MAINTENANCE
ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM MODEL M100A1
REPLACE COALESCER ELEMENTS AND SEPARATOR ELEMENT
This procedure is performed when the reading observed on the differential pressure gauge during operation reaches or
exceeds fifteen psi, or when the liquid fuel filter-separator is to be used with a different type of pumpage. (Coalescer
elements should be dedicated to one type of pumpage [e.g., JP-8 only]). Used elements should be handled with rubber gloves
due to the toxic effects of some fuel additives. New elements should be handled with clean rubber gloves or the packing bag
to avoid hand contact with the element surface. Soiled hands - even normal skin oils - may contaminate the filter element and
render it ineffective.
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Tool Kit, General Mechanics
Washer, Seal (WP 0117 00, Item 1)
(WP 0113 00, Item 1)
Washer, Split Lock (WP 0117 00, Item 136)
Chemical and Oil protective gloves
Washer, Split Lock (WP 0117 00, Item 137)
(WP 0113 00, Item 2)
Cloth, lint free (WP 0116 00, Item 4)
Brush (WP 0113 00, Item 2)
Equipment Condition
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 refueling system components due to
the toxic effects of some fuel additives.
NOTE
Even with the liquid fuel filter-separator defueled, some fuel will have accumulated in the
REMOVAL (Figure 1)
1.
Remove filter vessel cover. (WP 0055 00)
2.
Remove four nuts (1), lock washers (2) and element retainer (3). Discard the lock washers.
3.
Remove the nut (4), flat washer (5) and rubber washer (6) that secure the separator element (7) to threaded retaining rod
(8). Discard the rubber washer.
4.
Remove the separator element (7) and set aside for cleaning and re-use.
5.
Remove the three coalescer elements (9) and dispose of in accordance with local SOP.
0056 00-1
