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ZANDER HDK 50/100 Operating Instructions Manual
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Contents
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Maintenance and repair of the dryerHDK350_EN_01_2005-05-10 47Danger!There is a very considerable risk of personal injury, when carrying outwork on the activated and pressurised dryer.Before commencing any maintenance tasks always shut down the dryer asdescribed on page 43, Depressurising and shutting down the dryer!Warning against electrical voltage!Only qualified specialist personnel may carry out work on the electricalsystem!Daily maintenance tasksCarry out visual and function check on the complete dryer► Check dryer for external damage or unusual noise generation.► Duly eliminate any defects found.If message SEr. is displayed, a routine service must be completed:► Contact the service department of the manufacturer.Clean dryer► Remove any loose dust by means of a dry cloth, and, if required, also bymeans of a moist and well wrung cloth.► Clean the surfaces with a moist well wrung cloth.Check dam pressureIf, following depressurisation of a vessel, e.g. after the expansion phase, theoverpressure has not decreased to 0 bar, then there is a residual pressure,designated as dam pressure, in the vessel.► Check for dam pressure: if the dryer functions correctly, the respectivepressure gauge indicates 0 bar. Then there is no dam pressure.If the dam pressure is greater than 0.3 bar:► Depressurise the dryer and shut it down (see page 43).Dam pressure can be caused by: a blocked muffler, a blocked dust sieve or drying agent which is too old.The respective necessary maintenance measures are described in the followingsections. |
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