BELL & HOWELL - bh projector 1585a 1590a 92a

Comprehensive service manual for Bell & Howell Autoload Filmosound 16mm automatic projection systems covering models 1585A, 1585ML, 1590A, 1590B, 1592A, 1592B, 1592C, 1592H, and 1592BH. This workshop manual provides essential repair and maintenance procedures for these professional projection devices, serving as the authoritative technical reference for service personnel and technicians. The manual includes detailed disassembly and reassembly sequences with step-by-step instructions supported by comprehensive technical diagrams and illustrations. Coverage encompasses critical mechanical adjustments including optical system alignment, intermittent mechanism calibration, animation clutch setup, and sound head positioning to ensure precise equipment operation. A dedicated troubleshooting guide identifies common mechanical failures and film transport problems, documenting probable causes and verified remedies for rapid diagnostics. The parts list features complete replacement components organized by assembly with numbered references, allowing quick identification of required parts. Wiring diagrams detail both electrical and audio system configurations for comprehensive circuit understanding. Technical specifications cover projector speed parameters, lubrication schedules, and performance data essential for optimal operation. The autoload system section explains adjustment procedures and verification checks required for reliable automatic film threading. This revised January 1977 publication delivers the depth of technical information service shops depend on when maintaining or restoring these professional 16mm projection systems.