BELL & HOWELL - bh projector 567

Comprehensive service manual for the BELL & HOWELL Design 567 16mm Filmosound motion picture projector featuring automatic threading. This professional workshop manual delivers complete technical guidance for maintenance, repair, and system adjustment across all major mechanical, optical, and electrical components. The repair procedures include full disassembly and reassembly of front and rear reel arms, intermittent mechanism, and sound head assembly, supported by step-by-step optical alignment and positioning instructions specific to this projection system. Coverage extends to timing belt tension settings, film transport verification, autoload system alignment procedures, and an in-depth troubleshooting guide addressing mechanical faults, optical misalignment, and electrical failures commonly encountered in daily operation. Detailed assembly diagrams with numbered component references, indexed parts lists including catalog numbers, electrical specifications, and diagnostic test procedures enable rapid diagnosis and component sourcing. The manual also documents the separate lamp supply unit specifications, dual-projector changeover system operation, and routine maintenance protocols essential for sustained high-intensity arc projection performance. Wiring diagrams and cross-referenced schematics support both preventive maintenance scheduling and field repairs.