Significance

Yields information about a compressor governor that is fitted to some Ballarat Trams, Westinghouse.

Physical description

Two A4 photocopied sheets, giving a side elevation of the Westinghouse "S-6-A Electric Compressor Governor" and the setting or the regulation and adjustment, installation and maintenance of the Governor. Commonly known as a "Bettleback" Governor.



Dates from 1916.



See Reg Item 703 for a MMTB drawing.



WAD’s thoughts on setting Beetle back compressor Governors – 19/12/2009.







Refer to instructions as well.



Set both valves to approximately the same tension or thread length





If when pumping up, both valves start to chatter, screw down the back valve further.



When working satisfactorily, but pressures not right, that is, the governor is cutting out without valves chattering or with excessive range or pressure too high.



Adjust the front valve until the desired cut out pressure arrived at. The cap must be on this valve for it to work.



Adjust the back valve to adjust the cutting in setting, screw down for high cut in pressure.



Adjust both as necessary to obtain your desires!







And best of luck, it can be done, but is frustrating!!!!!