CHAPTER 13: MAINTENANCE OF APU
TM 9-2350-256-20
13.5 REPLACE APU ENGINE FUEL FILTERS-Continued
a.
REMOVAL
1
Remove clamp (1) from fuel line (2) by removing nut (3), lockwasher (4), flat washer (5), and screw (6).
2
Remove U-bolt (7) from fuel line (8) by removing two nuts (9) and two lockwashers (10).
3
Disconnect fuel lines (2 and 8) from the APU engine fuel filter fittings (11).
NOTE
Open drain cocks (12) on bottom of each filter and drain before removal of filters.
4
Remove APU engine fuel filters and fittings (11) by removing three screws (13) and three lockwashers (14).
5
Remove primary fuel filter (15) and secondary fuel filter (16) by removing from each one screw (17) and one flat
washer (18).
NOTE
Remove ID plate (19) only if required.
6
Remove ID plate (19) by removing four rivets (20).
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