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Sterling STT 300 Maintenance, Remove the protective grid of the blower position

Models: STT 300

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Remove the protective grid of the blower (position 3).

STT 300

Blower ”regeneration heater” / Blower ”drying heater”

Remove the protective grid of the blower (position 3).

Loosen the nut (position 1).

Loosen and remove the screw (position 2).

Slide motor with carrier flange plate (position 6) towards the carrier flange housing (position 4). Remove defective V-belts (position 5), put on new ones.

Attention should be given to exact alignment of the V-belt pulleys.

Adjust belt tension by screw (position 2) in accordance with the information sticker. Tighten the nuts on threaded bolt (position 1) again.

Mount the protective grid of the blower (position 2).

Mount the side panels.

SM2-615

Maintenance 5-9

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Sterling STT 300 operating instructions Maintenance, Remove the protective grid of the blower position

Contents

with Simens control unit Operating Instructions Dehumidified Air Dryer STTSterling Material Processing SM2-615Sales and Contracting Department Parts and Service DepartmentEdition 05/02 STT Sterling Material ProcessingOrder confirmation number SM2-615Page TABLE OF CONTENTS Page Page General Information 1. General InformationDehumidified Air Dryer General Information Dehumidified Air Dryer 1.1. Warnings and symbols1.3. Legal basis 1.2. Explanations and information1.4. Fields of applications 1.5. Notes on UsageDehumidified Air Dryer 2. Safety instructionsSafety instructions General Dehumidified Air Dryer 2.1. For your safetySafety instructions Assembly Safety instructionsDehumidified Air Dryer OperationDehumidified Air Dryer Safety instructionsMaintenance Dehumidified Air Dryer 2.2. For the safety of the devicesSafety instructions Start-up 3. Start-upStart-up STT 3.1. Control system3.1.1. Key assignment Indicator lamp messages STT 3.1.2. Flow chartStart-up SM2-615Start-up STT 3.2. Switching on the dryer3.2.1. Operation statuses Start-up 3.4. PasswordsSTT 3.3. Viewing the software-version Start-up LoginLogout Edit3.5.1. Turning the devices on/off STT 3.5. Basic parametersTimer on/off Start-upHopper X on/off X = number of the drying hopper Start-upStart-up STT 3.5.2. Entering dryer valuesRegeneration Heater Act Used air ActReturn air cooler Act Start-upReturn air cooler Target Start-up STT 3.5.3. Entering hopper valuesHopper entry X Target Hopper entry X ActGranules act. C Start-upGranules target % = C Start-up STT 3.5.4. Observing processing statuse.g. valve block moved in/moved out/error Start-up STT 3.5.5. Setting date and timeDate TimeStart-up STT 3.5.6. Viewing/changing language and contrastContrast LanguageStart-up STT 3.5.7. Changing parametersSelect ”Parameters” Run on time drying blower --300 secXX ON 00 00 OFF 00 00 XX = day Mo-Su STT 3.5.8. Setting the timerStart-up Select ”Main menu” STT 3.6. Starting continuous operationStart-up Start-up STT 3.7. Viewing system runtimeSelect ”System runtime” System runtimeSwitch off the dryer at the main switch STT 3.8. Switching the dryer offDisconnect the power supply Start-upDehumidified Air Dryer 4. Error and error correctionError and error correction Dehumidified Air Dryer Error and error correctionFailures must be repaired immediately LED “ALARM” View Error and error correctionDehumidified Air Dryer Dehumidified Air Dryer Error and error correctionNumber Total messagesDehumidified Air Dryer Error and error correctionOverflow Overflow warning On/OffPLC = SPS Battery is Empty Error and error correctionMain Switch is Off A Safety Temperature Limiter has been ActivatedError Bypass Flap Error and error correctionError Valve Block Dehumidified Air DryerSafety Switch Drying Heater Error and error correctionSafety Switch Heater Hopper Dehumidified Air DryerValve Error Hopper Error and error correctionDehumidified Air Dryer Temperature Measurement Granules Defective HopperMaintenance 5. MaintenancePlease observe the maintenance schedule MaintenanceMaintenance STT 5.1. Maintenance intervalsMaintenance STT 5.2. Cleaning/renewing the air filtersReturn air filter MaintenanceRegeneration air filter MaintenanceRe-installthe cleaned/new filter mat MaintenanceFilter of the electrical cabinet Remove the lid of the filterMaintenance STT 5.3. Tensioning the V-beltsRemove the protective grid of the blower position MaintenanceMaintenance 5.5. Servicing the accessories5.4. Disposing of the drying agent Maintenance 5.6. Changing the battery of the control systemStore backup batteries in a dry and cool place MaintenanceOrder number battery SM2-615Maintenance STT 5.6.1. Resetting the control valuesFunctional description 6. Functional descriptionFunctional description STT 6.1. DryerDew point dependent regeneration switch optional Functional description STT 6.2. Drying hopper optionalFunctional description STT 6.3. Return air cooler optionalFunctional description STT 6.4. Hopper heaters optional6.5. Automatic motor flaps optional Dehumidified Air Dryer 7. Transport, Assembly and StorageTransport, Assembly and Storage with a fork lift truck Dehumidified Air Dryer 7.1. Transport and PackingTransport, Assembly and Storage Dehumidified Air Dryer Transport, Assembly and Storagewith a workshop crane Transport with a workshop crane SM2-615Transport, Assembly and Storage Dehumidified Air Dryer 7.2. Assembly7.3. Storage Dehumidified Air Dryer 8. Assembly instructionsAssembly instructions Dehumidified Air Dryer 8.2. Connection of the air coolers optionalAssembly instructions Assembly instructions Dehumidified Air Dryer 8.3. Electrical connectionTechnical Data 9. Technical DataBasic Equipment Optional EquipmentSM2-615 Technical DataDimension sheet Spare parts list 10. Spare parts listPos. ID-numberDescription Spare parts listPos. ID-numberDescription Spare parts listSpare parts list 10.1. Switching Cabinet and Operating UnitAccessories Return air coler optionalDehumidified Air Dryer 11. Electrical manualElectrical manual Accessories 12.AccessoriesDehumidified Air Dryer SM2-61502/01GB Accessories Entering values on the OPSterling Material Processing Procedure 3.3Entering ValuesGeneral Operation StepException 3.3.1Entering Numerical ValuesGeneral Operation Procedure 3.3.2Entering Alphanumeric ValuesGeneral Operation StepStep ProcedureGeneral Operation Procedure 3.3.3Entering Symbolic ValuesGeneral Operation Step10/00GB Accessories Flap control with Fuzzy-LogicSterling Material Processing 10/00GB Flap control with Fuzzy-LogicControl unit “flap”