20 Page photocopy of a Westinghouse manual for a DH 16B air compressor of type fitted to the W3 and W4 with background information applicable to other air compressors. Includes notes on performance data, lubrication, inspection, overhaul, bearings, oil, armature fitting, general arrangement drawings, sectional drawings with part numbers and wiring diagram. Produced by Westinghouse with a copyright dated 11/59. Copy of document made for BTM Dec. 1997 by Doug Prosser. Images added 24-12-2016trams, tramways, air compressors, westinghouse, maintenance, dh16b

Nine Page photocopy of a Westinghouse manual for Westinghouse S6-A and S6-B Compressor Governors (often known as Beatle Back type). Includes cross sectional diagrams of both compressors, photographs, connection diagrams, and detailed descriptions. The descriptions include notes on the compressor, switch portion, regulating portion of the device, regulation and adjustments, setting of cutouts, installation and maintenance. Originally prepared by Westinghouse, Wilmarding PA, USA, 20/9/1916. Retyped by MMTB 5/1955 and provided to Warren Doubleday from Preston Workshops c1980. Copy contained within a stapled and bound manila folder with handwritten title on outside. 2nd copy added 9-6-2019 from the Melbourne Tram Museum - in a manila folder with a black binding. Copy of above document. See pdf file for full scan.trams, tramways, air compressors, westinghouse, maintenance, dh16b, governors