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744 HANDBOOK OF PROJECTION FOR
P.5, the first two being at top of film gate slide and the last named at bottom of intermittent sprocket cradle, it is onlynecessary to take out the screw shaft which holds them.
INSTRUCTION NO. 6.— TO REMOVE ENTIRE INTERMITTENT MOVEMENT GB-75,P.3, AS A UNIT, including oil casing, flywheel and intermittent sprocket, open gate in order that intermittent sprocket cradle, or tension shoe, be released from sprocket. Next loosen screw CS-127,P.6, a few turns. Remove screw SF-21, from back end of crank shaft. Push crank shaft out of main gear toward operating side of mechanism. Remove main gear, loosen clamp screws SF-10, P.6, and slide washers they hold (SF-12) away from' flange of geneva intermittent box, or oil casing. Grasp flywheel with left hand and pull it straight out until the geneva box is partly removed from frame, then turn the box about one quarter turn to the right and pull it out.
IN REPLACING GENEVA INTERMITTENT BOX, see that the "notch" on the rim of the casting is upward, and that it engages with stud SF-II, P. 6, the stud being at top of opening in frame into which intermittent box fits. The box of necessity fits closely into the frame opening. Do not force it in, but work it gently into place. It will go when you have it right. If you try to force it you may do great damage.
INSTRUCTION NO. 7.— TO OPEN THE GENEVA INTERMITTENT BOX, or oil well, GB-75, P. 3, first follow Instruction No. 6 and then remove the four screws GB-17, P. 8. The cover is not threaded to the box, but is prevented from turning and is held in proper relationship to the box by dowel pin GB-5, P. 8. The cover is machined to an oil-tight fit, hence must be handled very carefully. If it be struck or scratched by anything, then when it is replaced the joint will in all human probability not be oil tight.
CAUTION. — In replacing the oil well cover be very careful that both surfaces are perfectly clean, but wipe them with a clean soft cloth only from which all lint has been removed. Also that pin engages with cover made to receive it.
INSTRUCTION NO. 8.— TO REMOVE INTERMITTENT SPROCKET, SHAFT AND STAR, first follow Instruction No. 6 and then loosen screws GB-21, P. 3, which hold stripper plate stud GB-19, P. 3, to the cover and turn stripper plate GB-18, P. 3, away from sprocket. The intermittent sprocket is held to its shaft by two taper pins. Before attempting to remove these pins study general Instruction No. 5 carefully,