AC International 8200 Series Service Instructions, Disassembly and Reassembly Procedures

Page 24

SERVICE INSTRUCTIONS

DISASSEMBLY AND REASSEMBLY PROCEDURES

The procedures outlined in this section cover the dismantling and reassembly of the 8200 Series Centrifugal Fire Pumps.

When working on the pump, use accepted mechanical practices to avoid unnecessary damage to parts. Check clearances and conditions of parts when pump is dismantled and replace if necessary. Steps should usually be taken to restore impeller and casing ring clearance when it exceeds three times the original clearance.

DISMANTLING (PUMP WITH PACKING)

WARNING: Unexpected Startup Hazard

Disconnect and lockout power before servicing. Failure to follow these instructions could result in serious personal injury or death, or property damage.

WARNING: Electrical Shock Hazard

Electrical connections to be made by a qualified electrician in accordance with all applicable codes, ordinances, and good practices. Failure to follow these instructions could result in serious personal injury or death, or property damage.

WARNING:

Prior to working on pump the power source should be disconnected with lockout provisions so power cannot be re-energized to the motor. Close isolating suction and discharge valves. Failure to follow these instructions could result in property damage, severe personal injury, or death.

CAUTION: Extreme Temperature Hazard

Allow pump temperatures to reach acceptable levels before proceeding. Open drain valve, do not proceed until liquid stops coming out of drain valve. If liquid does not stop flowing from drain valve, isolation valves are not sealing and should be repaired before proceeding. After liquid stops flowing from drain valve, leave valve open and continue. Remove the drain plug located on the bottom of the pump housing. Do not reinstall plug or close drain valve until reassembly is completed. Failure to follow these instructions could result in property damage and/or moderate personal injury.

1.Drain pump by opening vent plug (2-910- 9) and removing drain plugs (2-910-9) on

suction and discharge nozzle. (See Exploded View on page 31).

2.Remove coupling guard and separate the coupling to disconnect the pump form the driver.

3.Remove seal lines (1-952-0).

4.Remove gland bolts (1-904-9), washers (1- 909-9), and gland (1-014-9) from each stuffing box.

5.Remove all casing main joint cap screws (2-904-1) and dowels (2-916-0). Use slot in casing main joint and separate the casing halves with a pry bar. Lift upper half casing (2-001-7) by castlugs.

NOTE: Casings have jacking screws.

6.Remove packing (1-924-9) and seal cage (1-013-9) from each stuffing box.

7.Remove cap screws (3-904-9) which hold bearing housings (3-025-3) to the casing and lift rotating element out of lower casing (2-001-8). Rotating element may now be moved to suitable working location.

8.Pull coupling half and key (3-911-2) off shaft (3-007-0).

NOTE: A spare rotating element can be installed at this point.

9.Remove cap screws (5-904-9) from bearing covers (5-018-0).

10.Remove bearing housings (3-025-3), locknut (3-516-4), and lockwasher (3-517- 4). Mount bearing puller and remove bearings (3-026-2). Remove retaining collar and split ring on outboard side and snap ring on inboard side.

CAUTION:

DO NOT REUSE THE BALL BEARINGS. Failure to follow these instructions could result in injury or property damage.

NOTE: Locknut and lockwasher are not used on inboard end bearing.

11.Remove bearing covers (5-018-0) and push oil seals (3-177-9) out of bearing covers. Pull deflectors (3-136-9) off shaft. Slide stuff box bushings (6-008-0) off of shaft.

24

Page 23 Page 25
Image 24
Page 23 Page 25
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 SafetyInstallation Pump LocationReceiving Pump Temporary Storage LocationFoundation Base Plate Setting Before Piping Grouting ProcedureSee ANSI/OSHA Coupler Guard REMOVAL/INSTALLATION Alignment ProcedureANSI/OSHA Coupler Guard REMOVAL/INSTALLATION InstallationRemoval Incorrect Alignment Correct AlignmentParallelindicator Alignment AngulardialDoweling Suction and Discharge PipingSuction Installations Piping Supports not Shown Suction PipingValves in Suction Piping Discharge PipingValves in Discharge Piping Pressure Gauges Pump InsulationStuffing BOX Lubrication Controlled Pressure System Operation PRE-START ChecksPriming StartingMaintenance Field TestingGeneral Maintenance Maintenance of Pump DUE to Flood DamageCleaning Without Dismantling Pump Bearing Lubrication GreasePacking Seal Maintenance Time Table Every Month Months Every YearTrouble Shooting CausesCures No Liquid DeliveredNot Enough Pressure Pump Takes Too Much Power Causes CuresPump Operates For Short Time, Then Stops Changing Rotation Clockwise Rotation Viewed from the Coupling ENDCounterclockwise Rotation Viewed from the Coupling END Service Instructions Disassembly and Reassembly ProceduresDismantling Pump with Packing 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.
Top Page Image Contents