NIKON - Nikon F MirrorBox SlowSpeedGov

This detailed technical guide provides step-by-step disassembly instructions for the Nikon F mirror box and slow speed governor removal. The document covers essential dismantling procedures: removal of the front Nikon plate, extraction of the front standard while identifying the nameplate fastening bar, removal of left and right covers, counter guard loosening, film exposure type plate and washer extraction, advance lever and retaining ring removal, A-R ring (automatic diaphragm) manipulation, and shutter/ASA dial disassembly. Each procedure is supported by detailed color photographs that precisely identify hidden screws, attachment points, and critical components requiring careful handling. The guide also includes a technical drawing for fabricating a specialized tool necessary for safe removal of the retaining ring. This manual is essential for camera repair technicians and restoration enthusiasts working on vintage Nikon F cameras, enabling accurate access to internal mechanisms while preventing damage to delicate parts.