Setting and Adjusting the Chamber Jackscrew | Sterling D48160s

SETTINGS AND ADJUSTMENTS

SECTION 4-22

Setting and Adjusting the Chamber Jackscrew

OVERVIEW

Proper adjustment of the two machine-mounted jackscrews is important to performance and safety. Improper settings can result in premature failure of the jackscrews.

To avoid severe damage to the jackscrews, BE PREPARED TO SHUT THEM DOWN IMMEDIATELY WHEN THE CHAMBER IS MOTIONLESS FOR ANY REASON WHILE THE MOTORS ARE RUNNING. This condition can occur when the chamber jams on debris or when the chamber reaches the end of its stroke, whether on the opened or closed end of the stroke (if the limit switches are not properly adjusted).

This procedure describes how to check and make adjustments to the cutting chamber jackscrew limit switches and the mounting bracket limit switch.

TURN OFF AND LOCKOUT the power per OSHA 1910.147 OR ANSI Z244.1-1982 (Lockout/Tag- out of Energy Sources).

If it is not possible to lock out the power, have an electrician remove the fuses.

Make sure the rotor has come to a complete stop.

The jackscrews, which open the machine, should not operate until the rotor is completely stopped. If you discover that the jackscrews DO operate while the rotor is still turning, immediately shut down the machine and call for maintenance to adjust it.

Wear gloves to protect against injury from the rotor or bed knives.

OPEN THE CUTTING CHAMBER INTERLOCK

Disengage the interlock actuator screw with a box wrench or a ratchet wrench.

Make sure the end of the interlock actuator screw is visible and clear of any contact.

When disengaged, the interlock opens the electrical control circuit to the motor and prevents the machine from running.

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Sterling D48160s manual Setting and Adjusting the Chamber Jackscrew

Contents

Sterling,Inc Sterling, Inc Refer to this Sheet When Ordering Parts Table of Contents Settings and Adjustments Topic SECTION/PAGE Table of Contents Operation Adjustable Rotor Knives…………………………………………………………………4-35 From previous Maintenance Troubleshooting Maintenance Parts Lists and Drawings Page Introduction What is a GRANULATOR? Section Learn Machine Safety Rotating Knives Safety Plate Follow the Safety Instructions Opening Hopper Safety Plate Jackscrew Reversing Operation Guards Safety Plate Hazardous Voltage Safety Plate Safety Instruction Plate Motor Rotation Safety Plate Rotating Knives Safety Plate Safety 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 Devices Open the Cutting Chamber Section Restart the Granulator Clear the JAM Machine and Controls BP 2400 Series Granulator Right Front Quarter View BP 2400 Series Granulator Left Rear Quarter View Uncrate the Granulator Section Overview Section 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 Procedure Installation Test the Zero Speed Sensor Alternate Test for the Interlock Switches from previous Test the Zero Speed Sensor Lubrication Settings 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 Knife Replace the Downstroke BED Knife GAP Adjustment TipsReplace the Downstroke Knife Shields Check the BED Knives Measure 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 Interlock Basic 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 Reassembly Measure the Knife GAP GAP Adjustment Tips Tighten the Screws to Final Torque Check the Knife GAP Fasten the Cutting Chamber Remove the Drive Guard Cover Inspect the Drive Belts Install the Matched BeltsRemove the Belts Tighten the Belt Tension Measure the Belt Span Check the Pulley AlignmentCalculate the Allowable Belt Deflection Measure the Deflection Force Adjust 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 Switch SET & 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 Circuit Rotor Knife Installation Into Fixture Knife Length SettingRotor Knife Preparation Adjustable Rotor Knife Installation Knife Length SETTING-INSPECTION Hydraulic Pump Operation Hydraulic Opening Position Switches Operation Discharge AIR Adjustment Check the Motor Rotation DirectionRUN the Motor Shut Down the Machine Cleaning the Discharge Transition Safely Clearing a Jam Maintenance Check Daily Weekly Monthly Periodic Maintenance Schedule Knife Screw Torque Belt TensionScreen Condition Upper Chamber Pivot ARM-SCREWS Infeed Flap Condition Retract the Screen Cradle Retainers Open the Screen Cradle Interlock See -12 page 90 for Screen Cradle Lowering Instructions Replace the Screen Remove the Screen Maintenance Close the Screen Cradle Interlock Cutting Chamber Access Open the Cutting Chamber with Hydraulics Open the Cutting Chamber with Jackscrews Close 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 Remedy BP2400 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