Sterling D48160s Check the Pulley Alignment, Measure the Belt Span, Measure the Deflection Force

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SETTINGS AND ADJUSTMENTS

SECTION 4-19

Drive Belt Replacement Or Adjustment

CHECK THE PULLEY ALIGNMENT

Tug outward on the pulleys to verify that they are tight on their shafts.

Check the pulley alignment by holding a straight edge against the edge of the large pulley and verifying that it is aligned with the edge of the small pulley. If the edges of the pulleys do not align, perhaps because the small pulley doesn't have as many grooves, use a tape to measure from the straight edge to the belt on each pulley.

MEASURE THE BELT SPAN

Measure the belt span between the contact points on the large and small pulleys as shown.

CALCULATE THE ALLOWABLE BELT DEFLECTION

The allowable belt deflection is obtained as follows.

Allowable belt deflection =Belt Span in inches (or mm) divided by 64

Another way to show that relationship: allowable belt deflection = Belt Span (in inches or mm} 64

MEASURE THE DEFLECTION FORCE

A gage to measure belt tension greatly facilitates this measurement. You may purchase one from Cumberland Engineering, or from the belt manufacturer.

NOTE: Check the instructions supplied with the belt tension gage for proper setting of the scales.

Use the belt gage to measure the force required to deflect the belt to the allowable dimension

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Contents Sterling,Inc Refer to this Sheet When Ordering Parts Sterling, IncTable of Contents Settings and Adjustments Topic SECTION/PAGE Table of Contents Adjustable Rotor Knives…………………………………………………………………4-35 OperationMaintenance From previousMaintenance TroubleshootingParts Lists and Drawings Page What is a GRANULATOR? IntroductionLearn Machine Safety SectionFollow the Safety Instructions Rotating Knives Safety PlateOpening Hopper Safety Plate Guards Safety Plate Jackscrew Reversing OperationSafety Instruction Plate Hazardous Voltage Safety PlateRotating Knives Safety Plate Motor Rotation Safety PlateSafety Clothing & Practices Wear Protective Clothing Keep Your Work Area SafeKeep CO-WORKERS OFF the Machine Machine Opening Devices Be Sure the Rotor is Motionless Before Opening MachineSection Open the Cutting ChamberClear the JAM Restart the GranulatorMachine and Controls BP 2400 Series Granulator Right Front Quarter View BP 2400 Series Granulator Left Rear Quarter View Section Overview Uncrate the GranulatorSection Move the Granulator to ITS Work Site Allow Adequate Work SpaceLevel the Granulator Remove the Protective Coating Electrical Wiring SET UP the Machine Functions Section Check for Mechanical InterferencesCheck Rotation of Motors Interlock Switch Test Procedure Alternate Test for the Interlock SwitchesInstallation Alternate Test for the Interlock Switches from previous Test the Zero Speed SensorLubrication Test the Zero Speed SensorSettings and Adjustments Open the Cutting Chamber Interlock Release the Cutting Chamber FastenersSee -10 page 87 for Cutting Chamber Opening Instructions Install the Rotor Locating PIN Loosen the Mounting Screws Remove the BED KnivesRemove the First Knife Clamp or Shield Replace the Upstroke BED Knife Replace the Upstroke Knife ClampReplace the Downstroke Knife Shields GAP Adjustment TipsReplace the Downstroke BED Knife Check the BED KnivesMeasure the Knife GAP Check the Knife GAPSET the Downstroke Knife Shield Finalize Installation of Upstroke BED Knife Tighten the Screws to Final TorqueSee -11 page 88 for Cutting Chamber Closing Instructions Close the Cutting Chamber Safety Interlock Fasten the Cutting ChamberBasic Facts about the Knives See -10 page 87 for Cutting Chamber Opening Instructions Lock the Rotor Remove the Mounting ScrewsRemove the Rotor Knives Clean Parts for Reassembly PhotoGAP Adjustment Tips Measure the Knife GAPCheck the Knife GAP Tighten the Screws to Final TorqueFasten the Cutting Chamber Remove the Drive Guard Cover Remove the Belts Install the Matched BeltsInspect the Drive Belts Tighten the Belt TensionCalculate the Allowable Belt Deflection Check the Pulley AlignmentMeasure the Belt Span Measure the Deflection ForceAdjust the Belt Tension Compare Measured Force to Recommended ForceTighten the Motor Base Bolts Replace the Drive Guard Cover Setting and Adjusting the Chamber Jackscrew Cutting Chamber Open Setpoint Adjust the Jackscrew OPEN-POSITION Limit Switch SET the Jackscrew CLOSED-POSITION Limit Switch If the Motor Stops Before the Cutting Chamber ClosesSET & Test the Mounting Bracket Limit Switch SET the Jackscrew CLOSED-POSITION LimitChamber Stops Before IT Closes but Motor Continues to RUN From previous Close the Cutting Chamber Safety Interlock Retract the Screen Cradle Retainers Cradle Open Position Adjust the Cradle OPEN-POSITION Limit Switch Check the Cradle CLOSED-POSITION Switch Adjust the Cradle CLOSED-POSITION Limit Switch Close the Screen Cradle RetainersClose the Screen Cradle Interlock Zero Speed Sensor Operation Adjust the Sensor PositionZero Speed Sensor Control CircuitRotor Knife Installation Into Fixture Knife Length SettingRotor Knife Preparation Knife Length SETTING-INSPECTION Adjustable Rotor Knife InstallationHydraulic Opening Position Switches Hydraulic Pump OperationOperation Discharge AIR Adjustment Check the Motor Rotation DirectionRUN the Motor Cleaning the Discharge Transition Shut Down the MachineSafely Clearing a Jam Maintenance Periodic Maintenance Schedule Check Daily Weekly MonthlyKnife Screw Torque Belt TensionScreen Condition Infeed Flap Condition Upper Chamber Pivot ARM-SCREWSOpen the Screen Cradle Interlock Retract the Screen Cradle RetainersSee -12 page 90 for Screen Cradle Lowering Instructions Remove the Screen Replace the ScreenMaintenance Close the Screen Cradle Interlock Cutting Chamber Access Open the Cutting Chamber with Jackscrews Open the Cutting Chamber with HydraulicsClose the Cutting Chamber with Jackscrews Fasten the Cutting Chamber Lower Raising the Screen Cradle with Jackscrews Rotor Knife Sharpening BED Knife Sharpening Troubleshooting Chart Test EquipmentLocating Trouble Section Mechanical Faults Problem Probable Cause Remedy Electrical FaultsBP2400 Series Parts List and Drawings 100 Parts Identification Drawing No. A-48050 Sheet 3 Parts Identification Drawing No. A-48050 Sheet 4 Parts Identification Drawing No. A-48150 Sheet 1 Parts Lists and Drawings Parts Identification Drawing No Sheet 1 Parts Identification Drawing No -460 Sheet 1 Wiring Diagram Drawing No. A-399598 Sheet 1 108 Drawing No -1 Sheet 1 Wiring Diagram for Hydraulics Drawing No. D-499061 Sheet 1 Wiring Drawing No. D-499044 Sheet 1 112 113