Sterling 0, 882 Replacing Motor Brushes, Removing Old Motor Brushes, Replacement and Reassembly

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6-2 Replacing Motor Brushes

Note: Make sure that you replace motor brushes before the brush shunt touches the commutator. Replacements and spares are available from the manufacturer.

Powder hopper loader vacuum motor brushes require periodic replacement. Maintain a supply of motor brushes, and establish a preventive maintenance program to reduce downtime.

Make sure that you properly seat replacement brushes to achieve maximum service life. Unseated brushes may fail prematurely and increase your maintenance workload.

WARNING! HAZARDOUS ELECTRICAL CURRENT PRESENT. Secure the machine BEFORE servicing!

WEAR SAFETY GLASSES BEFORE performing this procedure!

Use a stable platform if working above floor level.

Removing Old Motor Brushes

1.If you haven’t already done so, disconnect the hopper loader from the electrical supply!

2.Disconnect motor and blowback connection receptacles at the control enclosure.

3.Release the latches that secure the cover assembly. Lift off the cover assembly by the edges.

Remove the motor from the cover assembly by carefully releasing the springs. Springs are under tension, so be very careful!

5.Remove the brush end cap, then the two brush clips from the brush holder.

6.Remove the two brushes from the brush holder, and replace with new brushes.

Replacement and Reassembly

1.Re-attach the brush clips and the end cap after you make sure that the brush assembly is properly seated.

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Powder Hopper Loaders

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Contents Powder Hopper Loaders Powder Hopper Loaders Safety Considerations Wear Safety Glasses and Work GlovesAnnex B Information Table of Contents Maintenance Introduction AccessoriesGeneral Information Equipment FunctionNecessary Documents Customer ServiceSystem Capabilities Models Covered in this Manual Standard Features Powder Hopper LoadersWork Rules SafetyTools and Equipment Needed Mechanical Installation Safety ConsiderationsReporting a Safety Defect General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Powder Hopper Loaders Safety Circuit Standards SafetyDescription and Objectives Safety Device Lock-Outs Fail Safe OperationLock-Outs, Plugs, and Other Safety Devices Line Cord PlugMaximum Machine-Side Throughput Unpacking and Inspection Shipping InformationEvent of Shipping Damages If the Shipment is Not Complete United Parcel Service ShipmentParcel Post Shipment If the Shipment is Not Correct ReturnsNecessary Tools Installation & SetupMounting Powder Hopper Loaders Attaching the Pickup Wand Mounting TipsMaking Compressed Air Connections Making Electrical Connections Operation Pre-Startup ChecklistOperating Sequence Autoloadert M Starting the Loader Changing the Conveying SequenceSelecting the Most Efficient Loading Sequence Conveying Sequence DIP Switch Chart, Program A0536814 Powder Hopper Loaders Cleaning Filters 6MaintenanceRoutine Maintenance Checking Flex Hose for WearReplacing Motor Brushes Replacement and ReassemblyRemoving Old Motor Brushes Seating Motor Brushes Troubleshooting Powder Hopper LoadersPowder Hopper Loaders Cont’d Loader Options Spare Parts Overview Component Identification and LocationReturned Material Policy Technical AssistanceContact Information for Technical Assistance Credit ReturnsWarranty Returns Pushbutton and Keypad Tags 11Safety Tag InformationPowder Hopper Loader Safety Tags Button PositionModel Number 50E Loader Identification Serial Number TagLocated on back of mixing chamber Max Capacity 227 KG/HR

238, 0, 882 specifications

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