Replace or re-install worn, Replace worn or | Sterling 882.00379.00

	Problem		Possible Cause		Possible Remedy

					∙	Replace or re-install worn
						or misaligned gaskets.
					∙	Hopper discharge flapper
						not sealing under vacuum.
						1)	Replace worn or
							missing gasket.
						2)	Clean fouled flapper.
						3)	Check counterweight
							for proper operation.
							Repair or adjust as
							needed.
			Vacuum leak(s) in vacuum		∙	Internal check valves
			Vacuum leak(s) in vacuum			missing or damaged. On
			hoppers.			missing or damaged. On
			hoppers.			single line Y systems,
						single line Y systems,
						internal check valves must
						be installed in the vacuum
						hoppers to seal all hoppers
						not being conveyed to. If
	Vacuum conveying rate is					the check valves are
	Vacuum conveying rate is					present and undamaged,
	declining due to a vacuum					present and undamaged,
	declining due to a vacuum					they may be pushed too
	loss in the system.					they may be pushed too
	loss in the system.					far onto the tube stub to
						far onto the tube stub to
	(Cont’d.)					permit a proper seal. Also,
	(Cont’d.)					if the hopper is over-filled,
						if the hopper is over-filled,
						the check valve may not
						seal properly.

			Vacuum leaks in material	Check for leaks as described
			lines.	in previous steps.
					Too much air and not
					enough material or too much
					material and not enough air.
					Close takeoff compartment
					material inlet, slowly open
			Material take-offs not		until you hear material
			Material take-offs not		surging and slugging. Close
			properly adjusted.		surging and slugging. Close
			properly adjusted.		material inlet until surging
					material inlet until surging
					disappears. On most
					systems, a proper adjustment
					generates a 6” to 10” Hg
					(203 to 339 millibars)
					vacuum.
			The blower is dead-headed.		Check the blower inlet for
			The blower is dead-headed.		obstruction.
					obstruction.

Conveying System Mechanical Components Chapter 6: Troubleshooting

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Sterling 882.00379.00 Replace or re-install worn, Or misaligned gaskets, Hopper discharge flapper, Replace worn or, Needed

Contents

Conveying System Mechanical Components Part Number Bulletin Number SM2-605A.1 Effective 7/25/06 Write Down Your Serial Numbers Here For Future Reference Unpacking and Inspection Event of Shipping DamageIf the Shipment is Not Complete If the Shipment is Not Correct Warranty Returns Credit Returns Table of Contents Operation Troubleshooting Charts and Figures 105 106108 109 How to Use This Manual Safety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Conveying System Safety Tags DescriptionOperate this equipment within design specifications Responsibility General Responsibility Operator Responsibility Remember Maintenance Responsibility Reporting a Safety Defect General Description Models Covered in This ManualBasic System Components Volume-Fill Systems Basic System TypesTime-Fill Systems Conveying Distance SSI Series Inventory Vacuum Receivers Standard Features & OptionsModels SSI03, SSI06, SSI11 SSI03 Vacuum Receiver SPD Series Models SPD5, SPD7.5, SPD10, SPD15 PumpsOptions Positive Displacement Pump Dimensions SPD Series Models SPD20, SPD30 SPD 20, 30 Series Pump Dimensions Blowback Pumps Spdb Series Models SPDB5, SPDB7.5, SPDB10, SPDB15 Spdb 5-15 Series Blowback Pump Dimensions Spdb Series Models Spdb 25, Spdb Spdb 25, 30 Series Blowback Pump Dimensions Models 3.5, 6.5 & 11 Hp SPC Centrifugal PumpsAt 460/3/60 13.4 120 385 Spdb 20.6 10.3 155 400 Options SSR Series Stainless Steel Vacuum Receiver Dimensions SSR 6-45 Stainless Steel Vacuum Receiver Dimensions Metric Standards ∙ Dimensions in cm SSR 85/170 Stainless Steel Vacuum Receiver Dimensions Atmospheric Valves Models AV1.5, AV2, AV2.25, AV2.5, AV3 Sequence T-Valves Models SV1.5, SV2, SV2.25, SV2.5, SV3, SV4, SV4.5, SV5 Cartridge-Style Vortex Filter Chamber Models SFC225, SFC1000 SFC Vortex Filter Chamber Specifications and Dimensions FC Series Bag-Style Filters Models FC15, FC30, FC55∙ Filter media available ∙ Enclosed floor stand ACA Series Filter Chambers Filter Tank, Overall Dimensions Typical ACA Series Filter Chamber SFC-S Series Filters Specifications and DimensionsModel SFC-S Filter Take-Off Compartments and Pickup Tubes Take-Off Compartment Models Typical Take-Off Compartment FCO-1.5MD Safety Circuit Standards Safety Devices and InterlocksFail Safe Operation Safety Device Lock-Outs Installing the Pump Package Uncrating the EquipmentRigging and Placing Mechanical Components Vacuum Pump Vent Piping Considerations Conveying System Mechanical Components Installation Blowback solenoid To vacuum Line Installing the Control Panel Installing Material/Vacuum Tubing Typical Multiple Line System Installation Multiple Line System Piping Considerations Recommended Single-Line Y-Tube Installation Single Line Y-Tube System Considerations Modified Single-Line Y-Tube Installation Page Installing SFC or FC Filter Chambers Typical Material Check Valve Installing the Filter Chamber Shroud Installing ACA Series Filter Chambers Installing Vacuum Receivers and Inventory/Vacuum Receivers Installing the Safety Filter SFC-S Filter Installation Compressed Air Blowback Connection Implosion Blowback Connection Flange Mount Vacuum Receiver Mounting Positioning and Spacing on the Demand SwitchOrienting the Unit Installing the Pickup Probe Installing the Grinder Take-off Attachment Installing and Adjusting the Take-off Compartment Adjusting Fast Take-off FCO Compartments Typical Powder Check Adapter Making ACA Series Filter Chamber Compressed Air Connections Compressed Air ConnectionsMaking Pump Compressed Air Connections Solenoid Valve Solenoid Valve Making Pump Power Drop Wiring Connections Making Control Panel Power Drop Wiring ConnectionsElectrical Connections Making ACA Series Filter Chamber Electrical Connections Connecting the Control Panel to Vacuum Receivers Vacuum Receiver Volume fill Installing Station Bypass Switches Vacuum Receiver Volume Fill Vacuum Receiver Time Fill Recommended Field-Installed Optional Station Bypass Switch Connecting the Control Panel to the Pump Package Typical SPD Series Junction Box Wiring Diagram SUB Panel Layout and Connection Diagram Typical Spdb 5-15 Series Junction Box Wiring Diagram Typical Spdb 25, 30 Series Junction Box Wiring Diagram Junction BOX on Vacuum Pump Initial Start-up Adjusting Sight Glass Proximity Sensor SensitivityMaking Startup Checks Adjusting Air Pulse Duration All Models ACA Series Filter Chamber Pre-Operation ChecklistAdjusting Time Between Air Pulses on ACA Filters Adjusting the Number of Air Pulses Models Equipped with Volume-Fill Switch Only Adjusting Proximity Sensor SensitivityStarting ACA Series Filter Chamber Units Vacuum Switch VS Operation Operation ProceduresStart-up Shut-down High Vacuum Relief Regulator Operation Photocopy this page for your maintenance records Preventative Maintenance ScheduleConveying System Mechanical Components Maintenance Preventative Maintenance Maintaining Pump Packages Suggested Lubricants Oil Capacities-SPD Only SFC Filter Chambers Maintaining Filter ChambersInspecting ACA Series Filter Chamber Filter Bags See Valve Assembly Drawings and Spare Parts Lists in Figures Maintaining Lower Valves 5 to 15 HP 3.73-11.19 kW Spdb Units Disassembling Lower Valves Removing Upper Valves Reinstalling Upper Valves Reinstalling Lower Valves Servicing and Reassembling Lower Valves Cleaning the Filter Shroud SFC 225 and SFC 1000 Only Cleaning/Replacing the Filter Cartridge SFC-S Corrective Maintenance Dealing with Shortened ACA Series Filter Bag Life Reset the overload and check Problem Possible Cause Possible RemedyIntroduction Problem Possible Cause Possible Remedy Find and remove If needed see Problem Possible Cause Possible Remedy Alarm package component Troubleshoot Failure Repair/replace problemProper signal, voltage, Blower is dead-headed Dirty filter. Clean or replace Operation clean or repairCheck for faulty Voltage signal during Replace or re-install worn Clean fouled flapperCheck counterweight Repair or adjust as Filters in the filter chamber Replace or repair Immediately Warranty Specifications WarrantyWarranty Restrictions Warranty Liabilities Customer Responsibilities Technical Specifications Drawings and Diagrams Conveying System Mechanical Components Appendix 105 Equipment Cycles Conveying System Mechanical Components Appendix 106 Conveying System Mechanical Components Appendix 107 Spare Parts List Conveying System Mechanical Components Appendix 108 See for parts location Conveying System Mechanical Components Appendix 109 Conveying System Mechanical Components Appendix 110 SSR Series Vacuum Receiver Parts List Pre-May Conveying System Mechanical Components Appendix 111 Conveying System Mechanical Components Appendix 112 See on the previous page for parts location Conveying System Mechanical Components Appendix 113 Conveying System Mechanical Components Appendix 114 SSR85/170 Series Vacuum Receiver Parts List Conveying System Mechanical Components Appendix 115 Typical SSI Series Inventory Vacuum Receiver Exploded View Conveying System Mechanical Components Appendix 116 SSI Series Inventory Vacuum Receiver Parts List Conveying System Mechanical Components Appendix 117 SFC Filter Chamber Spare Parts List, Models SFC225, SFC1000 FC Filter Chamber Spare Parts List, Models FC15, FC30, FC35 Conveying System Mechanical Components Appendix 119 Conveying System Mechanical Components Appendix 120 Conveying System Mechanical Components Appendix 121 Conveying System Mechanical Components Appendix 122 SFC-S Filter Conveying System Mechanical Components Appendix 123 SFC-S Filter Spare Parts List Conveying System Mechanical Components Appendix 124 SPD Spare Parts Drawing Conveying System Mechanical Components Appendix 125 SPD Spare Parts List Conveying System Mechanical Components Appendix 126 SPD Spare Parts List Cont’d Conveying System Mechanical Components Appendix 127 Conveying System Mechanical Components Appendix 128 Elbow Fitting Reversing Valve Assembly Spare Parts Drawing Conveying System Mechanical Components Appendix 129 SPD Reversing Valve Option Spare Parts List Conveying System Mechanical Components Appendix 130 Spdb Spare Parts Drawing Conveying System Mechanical Components Appendix 131 Conveying System Mechanical Components Appendix 132 REG. AIR Mint 127111000 HPR LDR Spdb Spare Parts List Cont’d Conveying System Mechanical Components Appendix 133 Conveying System Mechanical Components Appendix 134 Conveying System Mechanical Components Appendix 135 Centrifugal Vacuum Pump Spare Parts List SPC Spare Parts Drawing Conveying System Mechanical Components Appendix 137 Service Department Technical AssistanceParts Department Sales Department