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.8mm to 1.6mm).You canattain adjustment by loosening the two screws in the door channel bracket andmovement of the bracket.(c) Raise the door to position the upper edge between the lugs and theheadring.Clearance of the door plate from either surface should be 1/32 + 1/64 of aninch (.8mm +.4mm).You can attain adjustment by loosening the hex nut that securesthe door guide channel to the channel bracket.b.Adjust the Chamber Bleed Valve.You adjust the chamber bleed valve toallow the liquid to evaporate without disturbing the liquid.Refer to figure 1-17.Figure 1-17.Chamber bleed valve.NOTE: The setting of the chamber bleed valve in the liquid cool bypass linedetermines the length of time required for releasing chamber pressure duringa liquids cycle.MD0354 1-37NOTE: When properly adjusted, the valve permits maximum release of steampressure without causing violent agitation of the liquid.CAUTION: Use care with the dial glass, when adjusting the jacket pressure gauge.The dial glass is not fastened to the rim.When the rim is unscrewed,the dial glass could drop out.(1) Remove the right side panel for access to the valve if the sterilizer has acabinet.(2) Close the valve finger tight, then open 1/4 turn.(3) Adjust the valve so that it takes 10 to 15 minutes in the exhaust phase ofa liquids cycle to empty the chamber.Make the adjustment with an empty chamber.(4) If sediment restricts the flow of steam through the valve, clean the valveand readjust it.c.Adjust the Jacket Pressure Gauge.Adjust the jacket pressure gauge if thegauge does not read zero when there is no jacket pressure (unit is off and cool).Referto figure 1-18.Figure 1-18.Jacket pressure gauge.(1) Remove the top panel for access to the jacket gauge.The gauge islocated on the piping above the sterilizer body.(2) Remove the dial glass by unscrewing the rim from the gauge case.Usea strip of rubber to remove the dial glass to avoid hand pressure binding the rim.MD0354 1-38 (3) Adjust the gauge when there is no pressure in the jacket or chamber.(a) Adjust a gauge that has the adjustment screw in the center of thepointer by holding the pointer and turning the adjustment screw slightly in the oppositedirection to that which the pointer is to be moved.(b) Repeat until the pointer is at zero.If the adjustment screw is on theface of the dial, do not hold the pointer; just turn the adjustment screw to set pointer atzero.(4) Assemble the glass dial in the rim and place the rim in position againstthe gauge case.(5) Turn the rim counterclockwise until you feel the threads drop intoalignment.Then screw the rim clockwise into the gauge case.d.Adjust the Chamber Pressure Gauge.Adjust the chamber pressure gaugewhen the chamber is at atmospheric pressure.The gauge is located at the right of thecontrol head.Refer to figure 1-19.Figure 1-19.Chamber pressure gauge.(1) Remove the plastic cover.(2) Adjust the gauge as necessary using the procedures given for the jacketpressure gauge.(3) Replace the plastic cover.MD0354 1-39e.Summary of Safety Precautions.Observe the followingcalibration/verification safety precautions to ensure safe operation of the sterilizer.(1) Do not use the door latch to support the weight of the door.Support thedoor by placing blocking under it before repair.(2) When you adjust the door, ensure that the door lug bolts are secure.Ifthey are loose, apply Lock-tite 242 to the bolts and torque to 75 foot pounds to ensureintegrity of the door, maintain a sealed system, and prevent steam burns.(3) When you adjust the jacket pressure gauge, use care with the dial glass.The dial glass is not fastened to the rim.When the rim is unscrewed, the dial glasscould drop out.Section IV.PREVENTIVE MAINTENANCE CHECKS AND SERVICES1-11.GENERALNow that you know how to operate and calibrate the sterilizer, you are ready toperform PMCS.You must conduct periodic PMCS on the sterilizer to ensure itscontinued operation.You need the following tools and equipment.a [ Pobierz całość w formacie PDF ]