Sterling 238, 882, 0 manual Seating Motor Brushes

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Following steps 5 and 6 above, perform the same procedure for the opposite side.

2.Remove the armature assembly at the top portion of the hopper loader to properly seat the replacement brushes.

3.Insert a strip of 600-grit sandpaper with the rough side facing the brush.

4.Release the brush and rotate the commutator back and forth by hand (See the alternative seating procedure on the facing page) so that the brush is sanded to match the arc of the commutator.

5.In older motors, the wear of the brushes creates a shallow trough in the commutator. Sand the brush to conform to the contour.

6.Remove the sandpaper, and repeat steps 5 and 6, as needed until all brushes are replaced.

7.Reinstall the armature assembly.

Seating Motor Brushes

You have two (2) options for seating motor brushes (Steps 5 to 11):

Option 1

„Run the powder hopper loader at 50% to 75% voltage for about 30 minutes.

„Apply power from a variable transformer at the motor disconnect, not at the control box.

Option 2

„Connect two (2) hopper loader motors in series and run them for about 30 minutes.

WARNING! On motors using white AMP disconnects, make sure power is not applied to the green ground wire; otherwise, the motor housing becomes electrically “hot.”

Reducing line voltage may be accomplished by using a variable transformer or by connecting two identical motors in series.

Powder Hopper Loaders

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Contents Powder Hopper Loaders Powder Hopper Loaders Wear Safety Glasses and Work Gloves Safety ConsiderationsAnnex B Information Table of Contents Maintenance Equipment Function AccessoriesGeneral Information IntroductionSystem Capabilities Customer ServiceNecessary Documents Models Covered in this Manual Powder Hopper Loaders Standard FeaturesTools and Equipment Needed SafetyWork Rules Safety Considerations Mechanical InstallationGeneral Responsibility Reporting a Safety DefectRemember Operator ResponsibilityMaintenance Responsibility Powder Hopper Loaders Description and Objectives SafetySafety Circuit Standards Fail Safe Operation Safety Device Lock-OutsLine Cord Plug Lock-Outs, Plugs, and Other Safety DevicesMaximum Machine-Side Throughput Event of Shipping Damages Shipping InformationUnpacking and Inspection Parcel Post Shipment United Parcel Service ShipmentIf the Shipment is Not Complete Returns If the Shipment is Not CorrectMounting Powder Hopper Loaders Installation & SetupNecessary Tools Making Compressed Air Connections Mounting TipsAttaching the Pickup Wand Making Electrical Connections Operating Sequence Pre-Startup ChecklistOperation Autoloadert M Changing the Conveying Sequence Starting the LoaderSelecting the Most Efficient Loading Sequence Conveying Sequence DIP Switch Chart, Program A0536814 Powder Hopper Loaders Checking Flex Hose for Wear 6MaintenanceRoutine Maintenance Cleaning FiltersRemoving Old Motor Brushes Replacement and ReassemblyReplacing Motor Brushes Seating Motor Brushes Powder Hopper Loaders TroubleshootingPowder Hopper Loaders Cont’d Loader Options Overview Component Identification and Location Spare PartsCredit Returns Technical AssistanceContact Information for Technical Assistance Returned Material PolicyWarranty Returns Button Position 11Safety Tag InformationPowder Hopper Loader Safety Tags Pushbutton and Keypad TagsMax Capacity 227 KG/HR Loader Identification Serial Number TagLocated on back of mixing chamber Model Number 50E

238, 0, 882 specifications

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