Richardson's handbook of projection (1927)

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752 HANDBOOK OF PROJECTION FOR struction No. 29, then remove two screws, which hold casing SF-77, lower right corner, P. 6, to governor unit, and take casing off. To release governor weights, inside of unit, it is only necessary to drive out the hinge pins, in either direction, they being non-taper pins. INSTRUCTION NO. 31.— TO REMOVE REVOLVING SHUTTER SUPPORTING UNIT, shown posed on top of mechanism casing, CS-44, P. 6, take out the four screws separately numbered CS-43, P. 3, which releases the entire unit. INSTRUCTION NO. 32.— TO DISASSEMBLE REVOLVING SHUTTER UNIT, shown removed from mechanism and posed in two positions, CS-44, in P. 3 and P. 6, first follow Instruction No. 31. Next loosen screw CS-52, P. 3, in collar of universal shutter mount, which will release both the mount Plate Z FR 9. /fR-IO. Plate 7, Figure 281.