Cine-film projection : a practical manual for users of all types of 16-mm. (1952)

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8 Servicing Equipment Lubrication Oiling Systems vary with the make of projector used, and operators should find out for themselves the number of oiling points on their machines, and also, the correct number of drops for each point. Disregard the "experts1 ' who tell you to oil little and often. Instead, pay special attention to the instructions on oiling issued by the manufacturer of your equipment. These instructions should tell you the number and positions of the oiling points, give a certain period for each oiling, and list the correct number of drops for each point. Many manufacturers also prefer you to use a certain type of oil for their projectors, and in some cases even supply their own of a special kind, and ask you to use no other. If you cannot get the correct oil, then use sewing-machine oil, but do not use any oil which has cleaning and rust-removing properties. Below is the Lubrication Chart issued by the makers of the Bell & Howell "Filmo" projector — note that the oiling period is different for sound and silent speeds, but the number of drops is the same : — Oil Cup A Oil Cup B and C Oil Holes D SILENT SPEED One drop of Filmo Projector Oil after each 8 hours of operation. One drop of Filmo Projector Oil after each 32 hours of operation. Saturate felt reservoirs every 6 months. SOUND SPEED One drop of Filmo Projector Oil after each 4 hours of operation. One drop of Filmo Projector Oil after each 16 hours of operation. Saturate felt reservoirs every 3 months. 115