6.7 Serviceandmaintenanceschedule
(28000–48000h ours)
Serv ice level A B A B A D
Operatingtimeinhours 28000 32000 36000 40000 44000 48000Servicework
Calendar time in months 42 48 54 60 66 7 2
Filter inspection,replacefilterif necessary,function controls XXXXXX
Preventiveinspectionincluding safety check XXX
Capacitycheck,rotorinspection XXX
1)
Replacementofhigh-temperatureprotection X
Inspectionofheatercoils X
Replacementof drive beltand belt fastener X
Replacementofrotordrivemotor X
Inspectionoffans(impellers,motors,bearings) X
Examiningelectrical- and controlsystems,functioncheck XXX
Calibrationofmoisture controlequipment, sensorsand valves XXX
Calibrationoftemperature controlequipmentandsensors XXX
Inspectingrotors,replacing rotor gasketsifnecessary X
1)
Notrequiredon units withsteam heater.
Table 6.2 Service and maintenance schedule (28000–48000 hours)
34
Servicea ndmaintenance
190TEN–106 5–J 1408
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