INSTALL MAIN FUEL TANK AFT BOOST PUMP AND CHECK VALVE
Procedure is same to install aft boost
pump and check valve in No. 1 or No.
2 main fuel tank. Installation of No. 1
(left) boost pump and check valve.
INSTALL CHECK VALVE
Remove plug from boost pump (1) and cap from
nipple (2) of check valve (3).
Install locknut (4) and packing (5) on check valve
(3). Apply grease (E458) to thread of nipple (2).
Install check valve on fuel boost pump (1).
Align check valve (3) with boost pump (1) as
shown. Tighten locknut (4).