TM  55-2835-209-23 1-28 PREPARATION FOR STORAGE OR SHIPMENT (CONT) 5. 6. 7. 8. 9. Engine fuel is toxic. To pre- vent  personnel  injury,  avoid contact with eyes and repeated or  prolonged  contact  with skin. Compressed  air  is  dangerous when  directed  toward  yourself or another person. The air- stream or material blown by the  airstream  can  cause  inju- ry, particularly to the eyes and  face. Use goggles to pro- tect eyes and face. Do not exceed 30 PSI. Do not direct airstream  toward  yourself  or another person. Apply 30 PSIG of filtered air to fuel  control  assembly  inlet  port (union in fuel control lower cover) until fuel system is purged of fuel. Connect  gravity  feed  lubricating  oil (D17)  supply  to  fuel  control  assem- bly inlet port. Rotate  compressor  and  turbine  rotor (clockwise from rear of APU) by hand until oil flows freely (no air) from drain line. Remove 28 vdc from fuel solenoid valve. Disconnect  qravity  feed  lubricating oil  supply  from  fuel  control  assem- bly inlet port. 10. Connect fuel solenoid valve elec- trical  connector. 11. Connect fuel manifold assembly to fuel nozzle assemblies (Task 4-18). 12. Be sure fuel control lower cover is free of debris. Install fuel con- trol upper cover (Task 4-9). 12.1. Drain APU oil (Task 6-2). 13. Place a red tag on APU stating: APU FUEL SYSTEM PRESERVED WITH  LU- BRICATING  OIL,  MIL-L-6081;  FLUSHING REQUIRED BEFORE STARTING, APU OIL HAS BEEN DRAINED. 14. For short term storage, install cover and seal APU inlet with bar- rier material (D3). Secure barrier material  with  pressure  sensitive tape  (D38). REMOVAL Remove  APU  from  maintenance  stand  (Task 2-1). INSTALL Install APU in shipping container (Task 2-2). FOLLOW-ON MAINTENANCE: None. Change  1 1-23/(1-24  blank)