Always turn the wheel at the speed indicated for the machine with discs. If there is no speed indicated, turn as fast as needed for good separation of milk and cream. Take care not to drop and dent any of the tin parts. Adjust for the density desired for the cream.
Fig. 125. Discs in DeLaval
cream separator.
224. Washing the Machine. As soon as milk has been skimmed with the separator, pour some water into the bowl and run it thru the separator the same as the milk.
Wash the bowl and other parts in hot water in which washing soda has been dissolved. Rinse in clear water, and then scald with boiling water. Once a week give it a more thoro washing, scrubbing all parts with a brush. Sun the parts when not in use.
225. Oiling. The mechanical parts which whirl the separator should be kept oiled. In oiling, follow the directions which come with the machine. Use a good grade of oil.
226. Whey Separator. A whey separator is a machine very much similar to a milk and cream separator. It is used in homes where much cheese is manufactured. It should be given the same care as other separators.
An homogenizer is a device used to give whole milk a consistency which is much like cream.
Fig. 126. Sectional view of separator.