TM 10-4330-237-13&P
(2)
Close inlet and outlet valves (2) on filter vessel (3) and open manual vent valve (4).
(3)
Place a container under the defueling coupling (5), open the defueling coupling valve (6) and drain the filter vessel
(3).
(4)
Close the defueling coupling valve (6).
(5)
Raise the liquid fuel filter-separator (7) to a vertical position with the filter vessel cover (8) facing up.
(6)
Remove the 12 nuts (9), lock washers (10), flat washers (11), bolts (12) and flat washers (13) from the filter vessel
cover (8). Discard lock washers (10).
(7)
Remove the filter vessel cover (8).
(8)
Remove the filter vessel cover O-ring (14) and dispose of in accordance with local SOP.
Figure 4-1. Filter Vessel Cover O-Ring Replacement
4-5
