PRESSURE TEST ROTARY-WING HEAD SEALS AND PACKINGS (Continued)

PRESSURE TEST ROTARY-WING HEAD SEALS AND PACKINGS (Continued) TEST VERTICAL HINGE PIN OIL TANK SEALS AND PACKINGS

TM-55-1520-240-23-4 CH-47D Heilcopter Manual
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TM 55-1520-240-23-4 5-5 PRESSURE TEST ROTARY-WING HEAD SEALS AND PACKINGS (Continued) 5-5 17. Loosen pressurizing filling (21) just enough to bleed pressure. When gage pressure is 0 psi, remove filling and packing (20). 18. Install packing (20) and plug (19). Torque plug to 85 inch-pounds. Lockwire plug. Use lockwire (E231). INSPECT FOLLOW-ON MAINTENANCE: Close work platform (Task 2-2). END OF TASK 5-30

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