ARGUS - Argus C3 Service

Complete service manual for the ARGUS C3 35mm camera, offering thorough guidance on maintenance, repair, and precision adjustment of the shutter mechanism. This technical workshop reference details the behind-the-lens shutter system that distinguishes the C3 design, with clear step-by-step procedures for disassembly and reassembly of all major subassemblies. The guide explains the main release lever functioning as a multiple cam, the mechanics of the release plunger, and the escapement system's variable retard mechanism that governs exposure timing. Specific sections address removal of the front plate, shutter assembly handling, access and calibration of the speeds escapement system, and the role of the bell crank and shuttlecock ribbon. Detailed coverage includes the speed cam and its follower, position shifts across the full speed range from 1/300th to 1/10th second on the Matchmatic variant, plus post-reassembly verification and adjustment procedures. Numbered technical illustrations and precision diagrams support every procedure, making the complex mechanical operation of this classic rangefinder camera accessible to technicians performing restoration and service work.