CHAPTER 4: MAINTENANCE OF MAIN ENGINE FUEL, AIR INTAKE,
TM 9-2350-256-20
AND EXHAUST SYSTEMS
4-13 REPLACE FUEL CHECK VALVE- Continued
5
Disconnect fuel filter inlet tube (10) and elbow (11)
from tee (12).
6
Remove coupling (9), filter (13), bushing (14), and tee
(12) from fuel check valve (5).
7
Remove fuel check valve (5) by removing two screws
(15), two lockwashers (16), and two flat washers (17).
8
Remove bracket (18) with two nuts (19) and two flat
washers (20).
b. INSTALLATION
1
Install bracket (18) with two flat washers (20) and two
nuts (19).
2
Install fuel check valve (5) with two screws (15), two
new lockwashers (16), and two flat washers (17).
3
Install tee (12), new bushing (14), filter (13), and
coupling (9) to fuel check valve (5).
4
Connect elbow (11) and fuel filter inlet tube (10) to tee
(12).
5
Connect manifold heater purge fuel line (8) to coupling
(9).
6
Connect fuel pump outlet hose (6) and adapter (7) to
fuel check valve (5).
7
Connect adapter (4) and elbow (2) to fuel check valve
(5).
8
Connect fuel inlet hose (1) to elbows (2 and 3).
c. TEST
1
Turn MASTER switch and fuel pump switch to ON
position.
2
Purge fuel system (refer to TM 9-2350-256-10).
3
Operate engine (refer to TM 9-2350-256-10). Inspect
fuel check valve (5) and connections for leaks.
4
Shut down engine. Turn MASTER switch and fuel
pump switch to OFF position.
NOTE
Follow-on maintenance:
Install engine deck (see paragraph 9-51)
4
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