ENGINE FUEL RETURN SELECTOR COCK REPLACEMENT (Sheet 4 of 4)
Position indicator plate (E) on return selector
cock (D) with word BOTH at engine fuel return
tube elbow (center outlet).
Position pointer assembly (F) at BOTH
Check to be sure all three openings in return
selector cock are open.
Install headless straight pin (G) in pointer assembly (F) and secure with cotter pin.
Using pliers, secure pointer assembly (F) in BOTH position with lockwire (H).
Remove selector cock (D) from vise.
Using 7/16 inch socket, secure return selector cock on mounting bracket (J) with three
Using 1-3/8 inch wrench on fitting (M) and 1-1/2 inch wrench on fitting (N), hold
fitting (M) in a fixed position while securing fitting (N).
Using one 1-1/2 inch wrench on fitting (P) and other 1-1/2 inch wrench on fitting (Q),
hold fitting (Q) in a fixed position while securing fitting (P).
Using 1 inch wrench, secure tube fitting (R).
Service fuel tanks (TM 5-5420-226-1 O).
Start engine and allow it to run for a brief time while checking for leaks.
End of Task