Sterling D48160s manual Section

Page 95

TROUBLESHOOTING

				SECTION 7-2
				Processing Faults

PROBLEM		PROBABLE CAUSE		REMEDY
Processing Faults
A. Material building up below	1. Pneumatic discharge blower		1.	Start the blower
screen	not running
	2.	Damper on discharge	2.	Adjust the damper (on
	blower not open enough		opposite side of machine from
			blower)
	3.	Damper line is blocked	3. Open line and remove block

B. Stalling	1. Overfeeding		1.	Reduce feed rate

	2.	Partial or complete screen	2.	Remove screen, clear and
	blockage		inspect for damage
	3.	Insufficient tension on V-	3.	Check belt tension and
	belt drive, slippage and		adjust as required
	burning
	4.	Badly blunted or damaged	4.	Install re-sharpened or new
	knives		knives as required
	5.	Knife gap setting is too	5.	Check knife gap clearances
	wide
	6.	Installation fault, motor is	6.	Check direction arrow and
	running in reverse direction		reset electrical connections to
			correct rotational direction
	7.	Safety interlock is	7.	Tighten safety interlock
	inoperative		actuator screw
C. Material overheating	1. Check items 1, 2, 4, 5 and 6		1.	Follow remedies listed for
	under “Stalling”		each item
	2.	Screen size is too small	2.	Increase the screen size

	3.	When feeding the material,	3.	Check bed knife projection
	bed knife shield on rotor down		beyond shield. Set it to 1-2”
	stroke is incorrectly set		(0.80 mm) for film and 1/16”
			(1.6 mm) or thicker materials
	4.	When granulating rubber,	4.	Increase talc percentage rate
	insufficient talc, causing		of feed
	freshly cut surfaces to re-
	adhere
	5.	Blockage in pneumatic	5.	Check direction of blower
	discharge line		rotation. Check venturi and
			line/or transition piece for
			blockage

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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 Keep CO-WORKERS OFF the Machine Wear Protective ClothingKeep Your Work Area Safe 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 OverviewLevel the Granulator Section Move the Granulator to ITS Work SiteAllow Adequate Work Space Remove the Protective Coating Electrical Wiring Check Rotation of Motors SET UP the Machine FunctionsSection Check for Mechanical Interferences 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 See -10 page 87 for Cutting Chamber Opening Instructions Open the Cutting Chamber InterlockRelease the Cutting Chamber Fasteners Install the Rotor Locating PIN Remove the First Knife Clamp or Shield Loosen the Mounting ScrewsRemove the BED Knives Replace the Upstroke Knife Clamp Replace the Upstroke BED KnifeCheck the BED Knives GAP Adjustment TipsReplace the Downstroke BED Knife Replace the Downstroke Knife ShieldsSET the Downstroke Knife Shield Measure the Knife GAPCheck the Knife GAP See -11 page 88 for Cutting Chamber Closing Instructions Finalize Installation of Upstroke BED KnifeTighten the Screws to Final Torque Fasten the Cutting Chamber Close the Cutting Chamber Safety InterlockBasic Facts about the Knives See -10 page 87 for Cutting Chamber Opening Instructions Remove the Rotor Knives Lock the RotorRemove the Mounting Screws 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 Tighten the Belt Tension Install the Matched BeltsInspect the Drive Belts Remove the BeltsMeasure the Deflection Force Check the Pulley AlignmentMeasure the Belt Span Calculate the Allowable Belt DeflectionTighten the Motor Base Bolts Adjust the Belt TensionCompare Measured Force to Recommended Force 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 SwitchChamber Stops Before IT Closes but Motor Continues to RUN SET & Test the Mounting Bracket Limit SwitchSET the Jackscrew CLOSED-POSITION Limit 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 Close the Screen Cradle Interlock Adjust the Cradle CLOSED-POSITION Limit SwitchClose the Screen Cradle Retainers Control Circuit Adjust the Sensor PositionZero Speed Sensor Zero Speed Sensor OperationRotor Knife Preparation Rotor Knife Installation Into FixtureKnife Length Setting Adjustable Rotor Knife Installation Knife Length SETTING-INSPECTIONHydraulic Pump Operation Hydraulic Opening Position SwitchesOperation RUN the Motor Discharge AIR AdjustmentCheck the Motor Rotation Direction Shut Down the Machine Cleaning the Discharge TransitionSafely Clearing a Jam Maintenance Check Daily Weekly Monthly Periodic Maintenance ScheduleScreen Condition Knife Screw TorqueBelt Tension 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 Locating Trouble Troubleshooting ChartTest Equipment 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