VIVITAR - Vivitar Series1 35 85mm f28 VariFocal Service

Comprehensive service manual for the Vivitar Series 1 35-85mm f/2.8 Varifocal lens, published in June 1979. This technical reference is designed for service technicians and professional repair shops equipped with specialized tools and expertise to service this varifocal lens. The manual provides complete disassembly and reassembly procedures covering: optical group separation, lens mount removal (supporting Vivitar Universal Thread, Nikon F, Minolta SR/XK, Canon FL/FD, Konica Autoflex, and Olympus OM mounts), and main lens disassembly including control housing, helicoid assemblies, and diaphragm housings. Key sections address optical component centering procedures, focus adjustment techniques, control ring drag adjustment, and detailed cleaning and lubrication protocols. The publication includes optical and mechanical specifications, a comprehensive lubrication schedule, and an illustrated parts catalog organized by mount type for convenient parts ordering. The manual describes a specialized Vivitar service tool to facilitate maintenance and repair operations. Documentation covers practical procedures with detailed reference numbers and quantities for replacement parts across different lens mounts. This technical publication is indispensable for camera repair facilities and optical service specialists requiring authoritative guidance on Vivitar varifocal lens servicing.