TM 55-1520-240-23-56-214.1REPAIR ENGINE TRANSMISSION OIL COOLER OUTSIDE SURFACE(Continued)6-214.1NOTERepairable damage is limited toscratches, nicks, gouges, minorcorrosion, and bent fins.1.Clean oil and grease from damaged area. Usenaphtha (E245) and clean cloths (E120). Weargloves (E186).2.Check extent and location of damage on cooler(1):NOTEDimensions in this step refer to extentof damage after rework.a.Depth of damage shall not be more than0.025 inch.b.Damage shall not extend over more than onesurface or enter any radius.c.Damage shall not be closer than 1.00 inch toany mounting hole (2).d.More than 3 inches of fins (2) shall not becrushed beyond straightening.3.Fluorescent inspect damaged area to checkfor cracks (TM 1-1500-335-23). There shall beno cracks. If crack is suspected in the enginetransmission oil cooler outside, refer to TM1-1520-253-23.4.Blend out damage with emery cloth (E123) orabrasive paper (13). Observe limits of step 2.5.Smooth blended area with crocus cloth (E122).Do not leave any sharp edges.6-701
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