TM 1-1520-265-236.8.3.2Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance. A partial inspectionfor cause (visual indications, sites of mechanical damage, corrosion, etc.) may be performed on all exposed surfaces ofthe installed part using applicable positions of this procedure. If required, the above shall be removed in accordance withthe applicable technical manuals listed in Table 1-1.6.8.3.3Access. Access is through the controls/accessories sliding cover (Figure 1-4, Item 3T-4T-2).WARNINGMaintenance Platforms/Workstands Use only appropriate platforms, workstands, or otherapproved locally procured stands and restraint equipment when working above 10 feet onhelicopters in a nontactical environment. Otherwise, personnel injury could result fromaccidental falls.6.8.3.4Preparation of Part. The part shall be thoroughly cleaned. Refer to Preparation of Part or Area for NDI,paragraph 1.4.4.6.8.3.5NDI Equipment Settings. Refer to Magnetic Particle Method, paragraph 1.4.8.6.8.3.6Inspection Procedure. A magnetic field shall be applied to the part perpendicular to the orientation of possiblecracks. The position required for this inspection is illustrated in Figure 6-8.Figure 6-8. Collective Boost and Yaw Boost Servo Input/Output Piston Shafts and Cylinders6-15
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