ADJUSTMENTS AND MAINTENANCE.—Normally, when the machine is first installed, noadjustments are required. Occasionally, however,some readjustment may be necessary because ofatmospheric changes, which may cause shrinkageor expansion of some of the belts. Theseadjustments should be performed according to themanufacturer’s instructions and only then byqualified personnel.Maintenance is required on a daily, weekly,monthly, semiannually, annually, and whenevernecessary basis. The following guide should befollowed:1. Daily requirements:a. Empty the residue bottle after at leastevery 8 hours of operation. Never reuse residuewater.b. Replenish the ammonia supply.c. Clean the outside of the cylinder withglass cleaner. (Operate the machine at slow speedwhile cleaning the cylinder. )d. Clean the feedboard, tracing receivingtray, and print receiving tray. Keep them free offoreign objects.2. Weekly requirements:Clean the inside of the cylinder when themachine is COLD, using the following procedure:a. Open the door at each end of the lamphousing.b. Remove the lamp connector from eachend.c. Swing the triangular stop aside andwithdraw the lamp assembly.d. Clean the inside of the cylinder—wrapa damp, clean cloth around a swab and wipe thecylinder while it is in slow motion. Repeat theprocedure with a dry cloth wrapped around theswab until the cylinder is thoroughly clean.e. Wipe the lamp assembly with a DAMPcloth.f. Reinstall the lamp assembly.IMPORTANT: Handle the lamp assemblywith great care, as it is fragile and expensive. DONOT ATTEMPT TO REMOVE THE LAMPFROM THE MACHINE UNTIL IT HASCOOLED. Always rest the lamp assembly flat ona table; never stand it on end.3. Monthly requirements:Lubricate the bearings and drive chainassembly sparingly with No. 10 motor oil.4. Semiannual requirements:Clean all suction holes of the rotatingtracing separation drum with pipe stem cleaners.5. Annual requirements:a. Lubricate the bearings and drive chainsparingly with No. 10 motor oil.b. Remove all hoses of the airflow systemand clean out dust and dirt.6. Whenever necessary:a. If the developer sealing sleeve becomestacky, remove it from the machine; wash both theinside and the outside thoroughly with soap andwater and dry well. NEVER attempt to wash thesealing sleeve while it is in the machine.b. It is advisable to clean the perforatedside of the developing tank at the same time.Use any commercial cleaning fluid. This willprevent any smudging of prints because of dirtaccumulations on the perforated side.REPRODUCTION MATERIALSDiazo materials are available from varioussources under different trade names and desig-nations, such as K&E, 3M, and GAF. Basically,all diazo reproduction materials have beencoated with a light-sensitive dye. The two typescommonly used for reproduction of originaldrawings are standard weight blueprint paper andsepia line intermediates.Blueprint PaperStandard weight paper (commonly calledblueprint paper) provides a black or blue imageon a white background. The printing speed forpaper is described as rapid. Paper is available insheet sizes that range from 8 by 10 in. to 34 by44 in., or in rolls that range in widths from 11to 42 in. with lengths of 50 or 100 yd.Colored paper provides black or blue imageson blue, green, pink, or yellow stock.Plastic-coated papers are now available thatgive a slightly glossy print with better linedensity than the standard paper.Sepia Line IntermediatesSepia line intermediates are used as duplicateoriginals. These intermediates are prints fromwhich additional prints can be made, saving wearon the original. When you use the sepia inter-mediate, it is possible to keep emulsion-to-emulsion contact in each generation, resulting ina sharper image. In addition, sepia has a greaterdensity and is capable of delivering a darker3-50
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