INSTALL JET PUMP MOTIVE FLOW CHECK VALVE
Dry cleaning solvent (E162) is
flammable and toxic. It can irritate
skin and cause burns. Use only in
well-ventilated area, away from heat
and open flame. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
Procedure is same to install motive
flow check valve in No. 1 or No. 2
main fuel tank. Installation of No. 1
(left) check valve is shown here.
Remove barrier material and tape from access
hole in tank (1). Clean tape residue from tank.
Use dry cleaning solvent (E162) and clean cloths
(E120). Wear goggles to protect eyes. Wear
Do not puncture or scratch lining
of fuel tank. If lining is broken, fuel
penetrates and activates self-sealing
layers. Activated layers swell and trap
fuel. Activated green spongy material
also contaminates fuel system. This
makes it necessary to replace fuel
tank and flush fuel system.
Install packing (2) and check valve (3) set in tee
Connect hose (5).
Perform vent system pressure test on affected tank
Install main fuel tank forward access door (Task
Test main fuel tank (Task 10-22).
Perform vent system flow test (Task 10-118).
Perform test of pressure refueling system (Task
10-119) and fuel feed system (Task 10-120).
Refuel helicopter (Task 1-51).
Bleed fuel system (Task 10-121).
Perform operational check of fuel system (left or right)
Inspect for leaks (Task 10-4).
Close forward landing gear access panel (Task 2-2).
END OF TASK