AC International 8200 Series Trouble Shooting, Causes, Cures, No Liquid Delivered

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TROUBLE SHOOTING

Between regular maintenance inspections, be alert for signs of motor or pump trouble. Common symptoms are listed below. Correct any trouble immediately and AVOID COSTLY REPAIR AND SHUTDOWN.

CAUSES

1.Lack of prime.

2.Loss of prime.

3.Suction lift too high (a negative suction gauge reading).

4.System static head too high.

5.Speed too low.

6.Wrong direction of rotation.

7.No rotation.

8.Impeller loose on shaft.

9.Impeller completely plugged.

10.System head or required discharge head too high.

11.Air leaks in suction piping.

12.Air leaks in stuffing box.

13.Speed too low.

14.Discharge head too high.

15.Suction lift too large.

CURES

No Liquid Delivered

Fill pump and suction pipe completely with liquid.

Check for leaks in suction pipe joints and fittings; vent casing to remove accumulated air. Check mechanical seal or packing.

If there is no obstruction at inlet and suction valves are open, check for pipe friction losses. However, static lift may be too great. Measure with mercury column or vacuum gauge while pump operates. If static lift is too high, liquid to be pumped must be raised or pump lowered.

Check with factory to see if a larger impeller can be used; otherwise, cut pipe losses or increase speed – or both, as needed. But be careful not to overload driver by more than the service factor.

Check whether motor is directly across-the-line and receiving full voltage. Frequency may be too low. Motor may have an open phase.

Check motor rotation with directional arrow on pump casing. If rotation is correct with arrow, check the relationship of the impeller with casing. (This will require removing casing upper half.)

See Figure 10 on page 23.

Check power, coupling, line shaft and shaft keys.

Check key, locknut and set screws.

Dismantle pump and clean impeller.

Check pipe friction losses. Large piping may correct condition. Check that valves are wide open.

Not Enough Liquid Delivered

If liquid pumped is water or other non-explosive and explosive gas or dust is not present, test flanges for leakage with flame or match. For such liquids as gasoline, suction line can be tested by shutting off or plugging inlet and putting line under pressure. A gauge will indicate a leak with a drop of pressure.

Replace packing and sleeves if appropriate or increase seal lubricant pressure to above atmosphere.

See item 5.

See item 10.

See item 3.

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Contents Series Base Mounted Centrifugal Fire Pumps Table of Contents Description Operational LimitsMaximum Working Pressure Seal Operating LimitsSafety Instructions Safety InstructionsAdditional Safety Requirements Electrical SafetyThermal Safety Mechanical SafetyReceiving Pump InstallationPump Location Foundation Temporary StorageLocation Base Plate Setting Before Piping Grouting ProcedureSee ANSI/OSHA Coupler Guard REMOVAL/INSTALLATION Alignment ProcedureRemoval ANSI/OSHA Coupler Guard REMOVAL/INSTALLATIONInstallation Incorrect Alignment Correct AlignmentParallelindicator Alignment AngulardialDoweling Suction and Discharge PipingSuction Installations Piping Supports not Shown Suction PipingValves in Discharge Piping Valves in Suction PipingDischarge Piping Stuffing BOX Lubrication Pressure GaugesPump Insulation Controlled Pressure System Operation PRE-START ChecksPriming StartingMaintenance Field TestingGeneral Maintenance Maintenance of Pump DUE to Flood DamagePacking Seal Cleaning Without Dismantling PumpBearing Lubrication Grease Maintenance Time Table Every Month Months Every YearTrouble Shooting CausesCures No Liquid DeliveredNot Enough Pressure Pump Operates For Short Time, Then Stops Pump Takes Too Much PowerCauses Cures Counterclockwise Rotation Viewed from the Coupling END Changing RotationClockwise Rotation Viewed from the Coupling END Dismantling Pump with Packing Service InstructionsDisassembly and Reassembly Procedures Page Dimension a = Assembly Pump with Packing 350 FT.LBS MIN. Torque Required Page Appendix a Engineering Data Casing DataStuffing BOX 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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