AC International 8200 Series Causes Cures, Pump Operates For Short Time, Then Stops

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TROUBLE SHOOTING (CONT.)

 

 

 

CAUSES

 

CURES

 

Pump Operates For Short Time, Then Stops

30.Insufficient NPSHA.

31.System head too high.

32.Head lower than rating; thereby pumping too much liquid.

33.Cavitation

34.Mechanical defects.

35.Suction inlet not immersed.

36.Liquid heavier (in either viscosity or specific gravity) than allowed for.

37.Wrong direction of rotation.

38.Stuffing box glands too tight.

39.Casing distorted by excessive strains from suction or discharge piping.

40.Shaft bent due to damage

– through shipment, operation, or overhaul.

41.Mechanical failure of critical pump parts.

42.Misalignment.

43.Speed may be too high.

44.Electrical defects.

45.Mechanical defects in turbine, engine or other type of drive exclusive of motor.

See item 17.

See items 4 and 10.

Pump Takes Too Much Power

Machine impeller’s O.D. to size advised by factory or reduce speed.

See item 17.

See items 18, 19, 21, and 23.

See item 20.

Use larger driver. Consult factory for recommended size. Test liquid for viscosity and specific gravity.

See item 6.

Release gland pressure. Tighten reasonably. If sealing liquid does not flow while pump operates, replace packing.

Check alignment. Examine pump for rubbing between impeller and casing. Replace damaged parts. Repipe pump.

Check deflection of rotor by turning on bearing journals. Total indicator run-out should not exceed .002" on shaft and .004" on impeller wearing surface.

Check wear rings and impeller for damage. Any irregularity in these parts will cause a drag on shaft.

Realign pump and driver.

Check voltage on motor. Check speed versus pump nameplate rating.

The voltage and frequency of the electrical current may be lower than that for this motor was built, or there may be defects in motor. The motor may not be ventilated properly due to a poor location.

If trouble cannot be located, consult factory.

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Contents Series Base Mounted Centrifugal Fire Pumps Table of Contents Maximum Working Pressure DescriptionOperational Limits Seal Operating LimitsSafety Instructions Safety InstructionsThermal Safety Additional Safety RequirementsElectrical Safety Mechanical SafetyPump Location InstallationReceiving Pump Location Temporary StorageFoundation See ANSI/OSHA Coupler Guard REMOVAL/INSTALLATION Base Plate Setting Before PipingGrouting Procedure Alignment ProcedureInstallation ANSI/OSHA Coupler Guard REMOVAL/INSTALLATIONRemoval Incorrect Alignment Correct AlignmentDoweling Parallelindicator AlignmentAngulardial Suction and Discharge PipingSuction Installations Piping Supports not Shown Suction PipingDischarge Piping Valves in Suction PipingValves in Discharge Piping Pump Insulation Pressure GaugesStuffing BOX Lubrication Controlled Pressure System Priming OperationPRE-START Checks StartingGeneral Maintenance MaintenanceField Testing Maintenance of Pump DUE to Flood DamageBearing Lubrication Grease Cleaning Without Dismantling PumpPacking Seal Maintenance Time Table Every Month Months Every YearCures Trouble ShootingCauses No Liquid DeliveredNot Enough Pressure Causes Cures Pump Takes Too Much PowerPump Operates For Short Time, Then Stops Clockwise Rotation Viewed from the Coupling END Changing RotationCounterclockwise Rotation Viewed from the Coupling END Disassembly and Reassembly Procedures Service InstructionsDismantling Pump with Packing Page Dimension a = Assembly Pump with Packing 350 FT.LBS MIN. Torque Required Page Stuffing BOX Data Appendix a Engineering DataCasing Data Impeller Design DataAppendix B Exploded View 8200 Series Fire Pump Clockwise RotationReplacement Parts List Part Number Part Name QuantityInstructions for Ordering Parts Appendix C Field Test Report Single Phase Motor Three Phase Motor Useful FormulasFire Pump Canada

8200 Series specifications

The AC International 8200 Series represents a cutting-edge advancement in the realm of commercial and industrial automation. Tailored for efficiency and flexibility, this series is designed to meet the rigorous demands of modern applications across various sectors such as manufacturing, logistics, and energy management.

One of the standout features of the AC International 8200 Series is its robust control system. Equipped with an advanced microprocessor, the system ensures high performance, enabling real-time data processing and decision-making. This feature enhances the capability of users to manage complex operations while maintaining optimal productivity levels.

The 8200 Series integrates seamlessly with the latest communication protocols, such as Ethernet/IP and Modbus, allowing for smooth integration into existing infrastructures. This interoperability ensures that organizations can adopt the new series without incurring significant costs associated with overhauling their current systems.

Energy efficiency is another key characteristic of the 8200 Series. It incorporates a variety of smart technologies, including power monitoring and energy-saving modes, which help organizations reduce their operational costs and environmental footprint. These features are especially beneficial in industries where energy consumption is a significant concern.

In terms of user interface, the AC International 8200 Series offers a customizable touchscreen display that provides operators with real-time insights into their systems. This user-friendly interface facilitates quick troubleshooting and comprehensive monitoring, thereby promoting operational efficiency.

Furthermore, the series boasts enhanced safety features, including emergency stop functions and overload protection mechanisms. These safety characteristics are critical in environments where machinery operates at high capacities, ensuring the well-being of personnel and minimizing risks associated with operational failure.

With its modular design, the 8200 Series allows for easy scalability. This means that businesses can expand their systems according to growth and evolving demands without compromising performance or requiring extensive modifications.

Finally, AC International backs the 8200 Series with unparalleled customer support and comprehensive training resources, ensuring that businesses can fully harness the potential of their investments. As industries continue to evolve and embrace digital transformation, the AC International 8200 Series stands out as an essential solution for those looking to improve efficiency, safety, and sustainability in their operations.
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