DEPRESERVE THE POWERPLANT
This procedure is the same for the
No. 1 or the No. 2 engine. The No.
2 engine is shown here.
Disconnect and cap the main fuel hose (1) from
the oil cooler (2) at the fuel outlet port (3).
Attach the drain hose (4) (APP E-317) to the fuel
outlet port (3).
Place the free end of the drain line (4) into the
grounded fuel resistant container (5).
Attach a grounding wire (6) from the fuel
container (5) to the drain line (4).
An external ac power and external
hydraulic power may be used.
Prepare and start the APU (5) (TM
Have the rotary-wing aviators motor the engine.
Continue motoring the engine until approximately
one gallon of fuel has drained into the grounded
fuel container (5).
Stop motoring the engine.
Remove the drain line (4) from the fuel outlet
Remove the cap and connect the main fuel
hoses (1) to the oil cooler outlet port (3).