NIKON - nikkor lens 120medical

Complete service manual for the Nikon Medical-Nikkor 120mm f/4 (IF) lens, published by Nippon Kogaku K.K. This professional repair manual covers all disassembly, maintenance, and reassembly procedures for this specialized medical imaging optic. The documentation is structured in two main sections addressing the lens unit and flash unit independently. The lens section presents technical specifications, detailed external views and exploded diagrams, a comprehensive parts list with all subassemblies, complete optical construction information, and step-by-step disassembly and assembly sequences. A dedicated check points section guides verification of proper function after repair work. The flash unit section includes full wiring diagrams, complete disassembly and reassembly instructions, and post-repair testing procedures. Additional reference material covers optical construction diagrams, standardized parts nomenclature and reference symbols, a detailed lubricant and binding agent specification chart naming exact products for each component, and all technical data required for precision service work. Text is presented in both English and Japanese to serve technicians worldwide. An essential workshop manual for authorized service centers and repair professionals maintaining Medical-Nikkor precision lenses.