BELL & HOWELL - bh projector cube 854a 862a

Comprehensive service manual for Bell & Howell Slide Cube projectors covering models CP40, 1000PS, RC50, 858A, RF60, AF70, and 3000PS. This detailed workshop manual is designed for technicians performing full disassembly, repair, and maintenance of these professional slide projection devices. The manual opens with an introduction that clarifies model-specific differences and design variations across the range. Step-by-step disassembly procedures are accompanied by numbered technical illustrations showing component layout and removal sequences. Reassembly instructions detail the slide transport mechanism, optical path alignment, and proper installation of internal assemblies. A dedicated adjustments section covers index lever positioning, centering switch calibration, remote focus function verification, shutter and index solenoid timing, transport disc speed verification, projection alignment, and autofocus system calibration for equipped models. The document includes systematic final test procedures to verify correct operation after service work. An extensive troubleshooting guide identifies common operational problems, traces probable causes, and provides practical remedies. A detailed parts list features exploded view diagrams showing component relationships and part numbers for quick reference during ordering or assembly work. Complete electrical schematics for all models and a specialized service bulletin addressing mirror alignment and autofocus adjustment procedures round out this essential technical reference for service personnel working with Bell & Howell Slide Cube projection equipment.