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TM 5-4320-308-13
3-19. REPLACE/REPAIR CHECK VALVE ASSEMBLY
This task covers:
a.
Removal
c.
Inspection
e.
Installation
b.
Cleaning
d.
Installation
INITIAL SETUP
Tools
Equipment Condition
Tool kit general mechanics automotive
Engine shut down, discharge hose removed,
and fuel drained from pump via drain port at
bottom of pump assembly.
REMOVAL:
1
Remove female coupling (1) and dust cap (2).
2
Remove reducer bushing (3).
3
Remove three nuts (4).
4
Remove suction (intake) flange (5) and check
valve assembly (6).
5
Remove check valve assembly (6) from suction
(intake) flange (5).
DISASSEMBLY:
1
Remove screw (7) from check valve assembly
(6).
2
Remove small weight (8), large weight (9), and gasket (10).
REPAIR:
1
Inspect female coupling (1), dust cap (2), reducer bushing (3), nuts (4), flange (5), screw (7), small weight (8),
large weight (9), and gasket (10) for wear, damage, rust, or corrosion.
2
Replace any worn or damaged parts.
ASSEMBLY:
1
Assemble large weight (9), gasket (10), and small weight (8).
2
Secure assembled parts with screw (7).
INSTALLATION:
1
Install check valve (6) on suction (intake) flange (5).
2
Install check valve (6) and suction (intake) flange (5) on stud (11).
3
Secure with three nuts (4).
4
Install reducer bushing (3).
5
Install female coupling (1) and dust cap (2).
3-42
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