MANIFOLD HEATER RETURN FUEL CHECK VALVE REPLACEMENT (Sheet 3 of 3)
Coat threads of elbow (A), nipple (B), check valve (C), and elbow (D) with sealing compound (Item
28, Appendix D).
Some 20 engines
filtering disc between elbow (A)
Using 9/16 inch wrench, install elbow (A) to
Install nipple (B) to elbow (A).
Install check valve (C) to nipple (B).
Install elbow (D) to check valve (C).
Using proper wrenches, tighten and
(B), (C), (D) to be able to connect end
fitting of hose assembly (E)
Connect hose assembly (E) to elbow (D).
Using 7/16 inch and 9/16 inch wrenches,
hose assembly (E) connection to elbow
Operate primer pump (TM 9-2350-222-10) and check for leaks. If leaks are found, tighten
connection as required.
Install 2A powerplant (page 5-14) or 2D powerplant (page 5-37).
End of Task