Figure 4-14. Oil Cooler Compartment Access Door

Figure 4-13. Troop/Cargo Door Lower Track

TM-1-1520-265-23 H-60 Helicopter Series Manual
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TM 1-1520-265-23 Change 2 4-35 4.14.3.1 NDI Equipment and Materials. (Refer to Appendix B.) Inspection equipment is listed in Table 1-7. AMS 2644 level 3 penetrant materials shall be selected from the approved list in Table 1-8. Parts requiring flourescent penetrant inspection shall be cleaned prior to inspection with n--Propyl Bromide (vapor degreasing only)(Table 1--8), DS--108 (Table 1--8), Electron (Table 1--8), Positron (Table 1--8). DS--108, Electron, Positron must be followed by an acetone (Table 1--8) rinse or wipe: or drying until there is no visible solvent residue left on parts. 4.14.3.2 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance. A partial inspection for cause (visual indications, sites of mechanical damage, corrosion, etc.) may be performed on all exposed surfaces of the installed part using this procedure. If required, the door shall be removed in accordance with the applicable technical manuals listed in Table 1-1. 4.14.3.3 Access. Not applicable. WARNING Maintenance Platforms/Workstands Use only appropriate platforms, workstands, or other approved locally procured stands and restraint equipment when working above 10 feet on helicopters in a nontactical environment. Otherwise, personnel injury could result from accidental falls. 4.14.3.4 Preparation of Part. Refer to Preparation of Part or Area for NDI, paragraph 1.4.4. 4.14.3.5 Inspection Procedure. Perform fluorescent penetrant inspection. Refer to Fluorescent Penetrant Method, paragraph 1.4.7 and Table 1-5. Inspect area of concern. See Figure 4-14. Figure 4-14. Oil Cooler Compartment Access Door

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