VIVITAR - Vivitar Series1 35 85mm f28 VariFocal Service

Comprehensive service manual for the Vivitar Series 1 35–85mm f/2.8 Varifocal lens, published June 1979. This workshop manual is essential for repair technicians and professional service shops equipped with specialized tools to maintain and restore this varifocal lens. Complete disassembly and reassembly procedures guide you through optical group separation, lens mount removal across five compatibility options (Vivitar Universal Thread, Nikon F, Minolta SR/XK, Canon FL/FD, Konica Autoflex, and Olympus OM), and systematic main lens disassembly including the control housing, helicoid assemblies, and diaphragm housings. Detailed sections cover optical component centering alignment, focus adjustment methodology, control ring drag tuning, and thorough cleaning and lubrication protocols with exact lubricant specifications. The manual incorporates optical and mechanical performance data, a comprehensive lubrication schedule mapped to each assembly, and an illustrated parts catalog cross-referenced by mount type—all essential for sourcing correct replacement components. Procedures reference a specialized Vivitar service tool designed to simplify maintenance work. Every disassembly step, adjustment, and parts replacement includes specific reference numbers and part quantities tailored to each lens mount variant. An indispensable repair reference for camera service facilities and optical technicians requiring authoritative technical guidance on professional varifocal lens servicing.