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716 HANDBOOK OF PROJECTION FOR
front mechanism casing, C-152-D, P.6. Remove this part and gear is released.
INSTRUCTION NO. 13— REMOVING REVOLVING SHUTTER BRACKET.— To remove this 'bracket, which carries revolving shutter gears and shaft, first follow Instructions Nos. 10, 11 and 12. Next release washer and screw holding framing lever spring S-330-G, P.3, about 3/16 of an inch and then apply blade of screw-driver to back side (side next lamphouse) of end of spring which points toward base. Push outward (toward screen) and the spring will release and unwind itself, probably with startling suddenness (which will do no harm), whereupon it may be removed with perfect safety. Provided your mechanism be a late model, you will find a hole in front mechanism cover opposite center wall of frame of mechanism, just over a set-screw. Loosen this set-screw, which will release the stud holding framing slide lever L-104G, P.3, and pulling stud out will realease the lever. If mechanism be an old model and there is no hole by means of which you reach the set-screw, we would advise you to make a hole using a breast drill and a half-inch drill since otherwise you must remove the entire right hand front mechanism cover. Having removed framing slide lever L-104G, P.3, you have now only to remove the screws (two of them) holding bracket to frame to release the bracket.
INSTRUCTION NO. 14— REMOVING REVOLVING SHUTTER SHAFT. — To remove the revolving shutter shaft, S-574-G, P.2, it is only necessary to take out set-screw in rear end of hub, G-147-G, P.4 This screw is quite short and has a pointed end which engages with counter sunk hole in shaft. Better (using a small magnetized screw-driver, if you have one), remove it entirely, but be sure you do not lose it.
INSTRUCTION NO. 15— REMOVING REVOLVING SHUTTER BLADE.— To remove revolving shutter blade from its hub (a very necessary operation in many circumstances), take out ten screws from shutter hub, if old model projector or shutter; or five screws, if late model. This releases blade from spider. In replacing, be sure the word "Simplex" (old style shutter), or the words, "Extralite Cutoff Blade," is directly in line with the heads of set-screws S-165-D, P.3.
INSTRUCTION NO. 16— TO REMOVE SHUTTER ADJUSTING SLIDE BLOCK S-323-A, P.2.— First follow Instruc