Mechanical Faults | Sterling D48160s instruction

TROUBLESHOOTING

				SECTION 7-3
				Mechanical Faults

PROBLEM		PROBABLE CAUSE		REMEDY
Mechanical Faults
A. Bearing overheating	1.	Excessive wear on the V-	1.	Check belt tension and
	Belt drive		adjust as necessary
	2.	Inadequate lubrication	2.	Check lubrication frequency
			and the recommended
			lubricants in motor and rotor
			bearings
	3.	Dirt/Contamination in	3.	Eliminate source of
	bearing		contamination
B. Visible cracks in knives	1.	Incorrect grinding	1.	Check grinding procedures
	procedure or incorrect		and contact a Cumberland
	grinding wheels in use		Service Engineer
C. Knives moving on seats	1.	Uneven knifes seat surfaces	1.	Clean knife seats to provide
			maximum bearing surface
	2.	Loose knife screws	2.	Tighten to correct torque,
			per section 4
	3.	Stretched knife screws	3.	Knife screws should not be
			used more than six times.
			Renew them if there is
			evidence of stretching
D. Knives breaking	1.	Possibly due to cracks	1.	Refer to problem B.
	caused by incorrect grinding		“Visible cracks in knives”
			(above left)
	2.	Abnormally heavy material	2.	Contact a Cumberland
			Service Engineer
	3.	Contaminated input	3.	Inspect the material for
	material		contaminates and foreign
			matter
E. Excessive knife wear	1.	Open knife setting	1.	Reset as detailed in
			alternate material
	2.	Abrasive materials	2.	Contact a Cumberland
			Service Engineer
F. Screens wearing	1.	Incorrectly seated	1.	Check that the screen is
			seated correctly and fully on
			its cradle
	2.	Abrasive materials being	2.	Obtain special alloy or heat
	granulated		treated screens

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Sterling D48160s manual Mechanical Faults

Contents

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