C5_5__Attachment_1_-_Photos.pdf

This document is a collection of photographs and technical documentation related to an elevator system installed at Shasta Dam. The images show various components of the elevator system including a Werthenbach hydraulic power unit (Order No. KA17215), control panels, brake systems manufactured by KTR and Imperial Electric, a Nidec MCE motor controller, and the elevator car's interior and exterior condition. The photographs document the physical state of equipment, including close-up views of wear patterns on painted surfaces, cable routing, hinge mechanisms, and diagnostic displays showing system parameters such as arm voltage, arm current, and field voltage readings.

The technical documentation includes an installation and operation manual for a gearless elevator motor system for MCE-Armstrong Elevator at Shasta Dam, with specifications including a 10,000-pound live load capacity, 500 FPM sheave speed, 6 cables at 11/16 inch diameter, and a Heidenhain ECN1134 encoder. The diagnostic event logs visible in the photographs show multiple fault conditions recorded between May and August 2025, including recurring KTR emergency brake oil temperature faults and machine brake oil temperature faults, as well as machine brake pressure switch faults and light load antinuisance events. The system includes KTR-STOP S-80-F brake units with 80 kN clamping force and 170-200 bar operating pressure specifications. The documentation also references troubleshooting procedures for various brake controller faults and system diagnostics contained in the iControl AC manual.