TM 11-6625-3081-235-39•SECONDARY HEAT SOURCE ASSEMBLY 2A3A1A17 REPAIR (cont)5-39b.On secondary heat source assembly(2), disconnect the followingconnectors:W5P4 from W23J1 (3)W5P5 from A17J1 (4)c.Cut lacing tape as required toallow removal of heat sourceassembly (2).NOTEHeat source assembly may have loose(noncaptive) screws (5).d. Through shutter assembly opening,loosen five captive screws (5)and carefully remove heat sourceassembly (2).CAUTIONExercise special care when workingnear optical surfaces.Avoid touch-ing or contaminating any opticalsurfaces in nightside test bench. Donot drop tools to prevent damagingequipment.e.Cover exposed surfaces of foldingmirror assembly (6).5-183
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