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TM 5-4320-305-24
2-19. REPLACE/REPAIR DISCHARGE MANIFOLD ASSEMBLY AND
DISCHARGE ELBOW (Continued)
7 Remove eight nuts (1) and eight lockwashers (2) from
studs (3).
8 Remove check valve assembly (4) and gasket (5).
Discard gasket.
9 Loosen hose clamp (6) and remove discharge
pressure hose (7) from reducer (8).
10 Remove reducer (8) and 90-degree elbow (9) from
180-degree elbow (10).
11 Remove hose clamp (11) and shutoff valve vent
hose (12).
12 Remove hose clamp (13) and air release valve vent
hose (14).
13 Remove six cap screws (15) and six lockwashers
(16).
14 Remove air valve cover assembly (17) and gasket
(18). Discard gasket.
CLEANING/ INSPECTION /REPAIR:
1 Inspect flanges and gate valve for cracks, rust, corrosion, and for damaged or stripped threads. Inspect mounting
surfaces. Make sure they are smooth and flat with no nicks or burrs.
2 Repair minor nicks or burrs and/or smooth out mounting surfaces with crocus abrasive cloth.
3 Clean and treat interior or mounting surfaces. Clean and refinish outside surfaces. Remove only a minimal amount of
surface material; replace parts if necessary.
4 Inspect discharge pressure hose, shutoff valve vent hose, and air release valve vent hose.
5 Inspect hose clamps, reducer, and 90-degree elbow for damage, rust, or corrosion. Replace parts if severely
damaged or rusted.
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