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10
EDISON PHONOGRAPH MONTHLY, NOVEMBER, 1916
Governor Ills and Cures
OCCASIONALLY we are asked for information concerning the care and adjustment of the governor that is designed to keep the speed of the revolving record absolutely steady. Frequent changes in the pitch of the music, an unnatural tremolo effect in the music or a whirring sound in the vicinity of the governor usually indicate that the governor or adjoining parts of the motor are in need of attention. It is recommended, however, that before any regulation of the governor is made, the motor should be inspected in other parts to see if the spring-barrel, its shaft, or the gears and bearings, do not require lubrication. Want of oil would result in unnecessary friction in the motor with its consequent changing of speed and the exhibition of some of the symptoms that might be observed if the governor was out of adjustment. The accompanying cut makes clear the procedure that is recommended in the following information provided by the Mechanical Department of the Musical Phonograph Division. A reading of the paragraphs below, with reference to the cut, will make thoroughly clear to you the most approved manner of locating and adjusting any difficulties that may have their origin in the governor or that
are indicated by the faulty operation of this part of the motor.
"The felt cushions (1) will not have a uniform effect upon the friction disc if they become clogged up with dirt and gummy grease. They should be cleansed, if necessary, with benzine and lubricated with Edison Diamond Oil.
"The small bearing (2) at one end of the governor shaft and a similar bearing at the other end of the same shaft should be oiled frequently to prevent the surface from roughing up. Make certain that the shaft turns freely in these bearings. The cause of unsatisfactory regulation and squeaking may often be found in the lack of sufficient lubrication of these bearings. A new shaft would be required if the ends become rough through lack of sufficient oil to lubricate them properly.
"An unpleasant tremolo in the music may be caused by neglect to oil the bearing of the cylinder on which the record goes. Lack of lubrication at this point will prevent the cylinder from turning smoothly. From time to time oil should be dropped in the oil hole (3) of the bearing and also at the other end of the cylinder.
"A governor which has become wobbly or unbalanced usually makes a whirring sound and runs