TM 55-1560-307-13&PGENERAL SAFETY INSTRUCTIONSWARNINGELECTRICAL GROUNDING OF THEHELICOPTER. Army regulations requirethe grounding of the helicopter whenparked and during all fueling anddefueling operations. No electricalswitches shall be operated except thosenecessary for servicing during fuelingand defueling. No smoking or flameduring all fueling and defuelingoperations.CAUTIONDo not move coupling levers to openposition with hose or tee couplingswhile couplings are disconnected.NOTEHose and tee coupling lock levers have tobe in closed position when disconnected.Couplings will not unlock if levers are notmoved from closed position.REMOVAL1.Place clean rags (item 3, Appx D) under hoseconnections.2. Remove fuel hose.a. Unlock hose couplings.b. Twist hose couplings counterclockwise at bothattaching ends. Remove hose.INSPECTIONRefer to POL manual for hose inspection.a.Visually inspect new hose for kinks, damagedcouplings, and other obvious damage.b.Replace fuel hose if above conditions are found.INSTALLATIONNOTEAfter hose is installed, ensure thatcoupling levers are open.1.Unlock hose couplings by turning lock levers toclosed position.2. Align lugs with grooves.3. Push hose couplings together and twist clockwise.Move levers to open position.3-16.MAINTENANCE OF ERFS COMPONENTS.REPLACE TEE COUPLING.This task covers:a.Removal.b. Inspection.c. Installation.INITIAL SETUPTools:NoneMaterials/Parts:Tee Assembly (5, Fig C-2), Appx CEquipment Conditions:Refer to Figures 3-5 and 3-6.All ERFS tank cam levers CLOSED.All tee and system coupling valvesCLOSED. Suction hose assembly(14) coupling closed. Refer toFigure 1-1.3-19
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