Sterling D48160s Zero Speed Sensor Operation, Adjust the Sensor Position, Control Circuit

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SETTINGS AND ADJUSTMENTS

SECTION 4-34

Zero Speed Sensor

ZERO SPEED SENSOR

The zero speed sensor detects the motion of the rotor assembly. The sensor is interlocked to the control circuits of the two machine jackscrews. If the rotor is turning, then the jackscrews should not operate. If you notice that the jackscrews are operational while the rotor is turning, check the following areas.

ZERO SPEED SENSOR OPERATION

There is a red pilot light on the sensor amplifier located in the control console. When the rotor is in motion, the red pilot light is lit. If the rotor is stopped, the pilot light is out.

The sensor has a green pilot light which, when it is lit, indicates that the power to the sensor is on.

If the rotor is in motion and the red light is off while the green light is on, check the sensor position.

ADJUST THE SENSOR POSITION

Disconnect and remove the sensor wire from the control console. Refer to the wiring diagram supplied with your manual for details.

Remove the sensor from the bearing housing. Measure the length of the thread in the tapped hole on the bearing housing where the sensor was mounted. Using this dimension, measure from the end of the sensor and set the locknut at this point.

Thread the sensor into the hole and lock it in position. Turn the rotor assembly slowly by hand to be sure that there is no interference between the sensor and the rotating members. Complete the wiring between the sensor and the control console.

CONTROL CIRCUIT

If the green pilot light is off at all times or if re-positioning the sensor does not correct the sensor operation, then check the control circuit.

Check the control circuit logic between the hydraulic system or jackscrews, the safety switches, the zero speed amplifier, and the zero speed sensor.

Refer to the wiring diagram supplied with your manual for details.

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Contents Sterling,Inc Sterling, Inc Refer to this Sheet When Ordering PartsTable of Contents Settings and Adjustments Topic SECTION/PAGE Table of Contents Operation Adjustable Rotor Knives…………………………………………………………………4-35From previous MaintenanceTroubleshooting MaintenanceParts Lists and Drawings Page Introduction What is a GRANULATOR?Section Learn Machine SafetyRotating Knives Safety Plate Follow the Safety InstructionsOpening Hopper Safety Plate Jackscrew Reversing Operation Guards Safety PlateHazardous Voltage Safety Plate Safety Instruction PlateMotor Rotation Safety Plate Rotating Knives Safety PlateSafety Clothing & Practices Wear Protective Clothing Keep Your Work Area SafeKeep CO-WORKERS OFF the Machine Be Sure the Rotor is Motionless Before Opening Machine Machine Opening DevicesOpen the Cutting Chamber SectionRestart the Granulator Clear the JAMMachine and Controls BP 2400 Series Granulator Right Front Quarter View BP 2400 Series Granulator Left Rear Quarter View Uncrate the Granulator Section OverviewSection 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 Alternate Test for the Interlock Switches Interlock Switch Test ProcedureInstallation Test the Zero Speed Sensor Alternate Test for the Interlock Switches from previousTest the Zero Speed Sensor LubricationSettings 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 Knife Clamp Replace the Upstroke BED KnifeReplace the Downstroke BED Knife GAP Adjustment TipsReplace the Downstroke Knife Shields 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 Fasten the Cutting Chamber Close the Cutting Chamber Safety InterlockBasic Facts about the Knives See -10 page 87 for Cutting Chamber Opening Instructions Lock the Rotor Remove the Mounting ScrewsRemove the Rotor Knives Photo Clean Parts for ReassemblyMeasure the Knife GAP GAP Adjustment TipsTighten the Screws to Final Torque Check the Knife GAPFasten the Cutting Chamber Remove the Drive Guard Cover Inspect the Drive Belts Install the Matched BeltsRemove the Belts Tighten the Belt TensionMeasure the Belt Span Check the Pulley AlignmentCalculate the Allowable Belt Deflection 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 If the Motor Stops Before the Cutting Chamber Closes SET the Jackscrew CLOSED-POSITION Limit SwitchSET & 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 Adjust the Sensor PositionZero Speed Sensor Operation Control CircuitRotor Knife Installation Into Fixture Knife Length SettingRotor Knife Preparation Adjustable Rotor Knife Installation Knife Length SETTING-INSPECTIONHydraulic Pump Operation Hydraulic Opening Position SwitchesOperation Discharge AIR Adjustment Check the Motor Rotation DirectionRUN the Motor Shut Down the Machine Cleaning the Discharge TransitionSafely Clearing a Jam Maintenance Check Daily Weekly Monthly Periodic Maintenance ScheduleKnife Screw Torque Belt TensionScreen Condition Upper Chamber Pivot ARM-SCREWS Infeed Flap ConditionRetract the Screen Cradle Retainers Open the Screen Cradle InterlockSee -12 page 90 for Screen Cradle Lowering Instructions Replace the Screen Remove the ScreenMaintenance Close the Screen Cradle Interlock Cutting Chamber Access Open the Cutting Chamber with Hydraulics Open the Cutting Chamber with JackscrewsClose 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 Electrical Faults Problem Probable Cause RemedyBP2400 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