Sterling SDF 500, SDF 400, SDF 250 manual Maintenance

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SDF 250/400/500

5. Maintenance

This chapter is intended for persons with skills in electrical and mechanical areas due to their training, experience and received instructions.

Personnel using the instructions in this chapter must be instructed of the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation.

Ensure in each case that the personnel are informed.

For maintenance work taking place at heights of over approx.

1829 mm (6ft.), use only ladders or similar equipment and working platforms intended for this purpose. At greater heights, the proper equipment for protection against falling must be worn.

Use only suitable lifting gear which is in proper working order and load suspension devices with sufficient carrying capacity. Do not stand or work under suspended loads!

Ensure that the electric motors/switch cabinets are sufficiently protected against moisture.

Use suitable workshop equipment.

Before starting maintenance work, appoint a supervisor.

Inform the responsible personnel before maintenance work on the system is started.

Never operate the equipment when partially dismantled.

Any maintenance and repair work NOT described here may only be carried out by Sterling service personnel or by specialised staff authorized by Sterling.

LDisconnect the equipment from mains supply before starting maintenance procedures to ensure that it cannot be switched on unintentionally.

All compressed air pipes on the equipment should be depressurized before starting maintenance work.

Maintenance 5-1

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Contents Sterling Material Processing SDF 250/400/500 SDF 250/400/500 Table of contents 10-1 General Information SDF 250/400/500 SDF 250/400/500 Fields of applications Explanations and informationLegal basis Safety instructions General Assembly OperationMaintenance For the safety of the devices Start up Control Unit Touch ScreenSwitching on the Dryer Basic parameters Entering Dryer ValuesDew point max Heater Reg. ActExit air Act Dew point ActEntering hopper values Granule Temp Hopper temp TargetHopper temp Act Drying time TargetSetting the timer Timer is only operating, when the dryer is switched on Actual operation status Actual hopper temperature displayed in C Status dryerObserving processing status Setting date and time Changing language SDF 250/400/500 Continuous operation SDF 250/400/500 Start up Switching the dryer/hopper heater off Error and error correction LED Alarm Actual messages Temperature Measurement Outgoing Air Defective Error Bypass FlapError Valve Block Excess Temperature Return AirTemperature Measurement Granules Defective Hopper Excess Temperature Heater HopperInsufficient Temperature Heater Hopper Excess Temperature Granules HopperOverload Drying Heater STB has been activated Main switch hopper heater # Controller is offOverload Regeneration Heater STB has been activated Alarm protocol Maintenance SDF 250/400/500 Maintenance schedule Cleaning or Replacing the Air Filter Cleaning or Replacing the Return Air Filter SDF DryerCleaning or Replacing the Regeneration air filter Filter of the electrical cabinet Disposing of Drying Agents Cleaning the Drying Hopper Remove any granules remaining in the cleaning opening STTSTT 60 Changing the battery of the control system Notch on the battery connector must point to the leftSDF 250/400/500 Resetting the control values Functional description Dew point dependent regeneration switch optional General InformationDrying Hopper Optional Hopper heaters optionalConnection to a Pneumatic Conveying System Optional Return Air Cooler OptionalTransport, Assembly and Storage Tansport and Packing Transport with a fork lift truckTransport with a workshop crane Assembly StorageAssembly instructions Connection of Return Air Cooler Optional Electrical Connection Compressed Air Supply Optional Equipment Technical dataBasic Version PerformanceSDF 250/400/500 Accessories Accessories Spare parts list Drying Hoppers STT 25 STT STT 25 STT STT 25 STT STT 25 STT STT 25 STT STT 25 STT