NO. 3 TAIL ROTOR DRIVE SHAFT REMOVAL/INSTALLATION

TM 1-1520-238-23 6-24 Change 4 6.5. NO. 3 TAIL ROTOR DRIVE SHAFT REMOVAL/INSTALLATION 6.5.1. Description This task covers: Removal. Cleaning. Inspection. Installation. 6.5.2. Initial Setup Tools: Aircraft maintenance tool kit (item 372, App H) 7/16 x 3/8-inch drive torque wrench adapter (item 22, App H) Light duty laboratory apron (item 27, App H) Chemical protective gloves (item 154, App H) Adjustable air filtering respirator (item 262, App H) 30 - 150 inch-pound 3/8-inch drive click type torque wrench (item 441, App H) Materials/Parts: Corrosion preventive compound (item 62A, App F) Personnel Required: 68D Aircraft Powertrain Repairer/NDI One person to assist 67R3F Attack Helicopter Repairer/Technical Inspector References: TM 1-1520-238-T Equipment Conditions: Ref Condition 1.57 Helicopter safed 2.2 Access doors T250L, T250R, T290L, T290R, and L325 opened 2.84 Forward catwalk folded back WARNING FLIGHT SAFETY PART The tail rotor drive shaft is a flight safety part. Failure to follow maintenance instructions may result in serious injury or death of crewmembers and/or serious damage to the helicopter. CAUTION ·Exercise care and undertake protective measures when handling or performing any type of maintenance on the tail rotor drive shafts. All surface areas are critical. Accidental dents or scratches caused by improper handling may render part unserviceable. ·To prevent damage to tail rotor drive shaft, ensure that work area is clean and that part is placed on a soft and adequately protected working surface. GO TO NEXT PAGE