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Carver Pump GH - User Manual

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GH Pump
SAFETY, INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
This manual shall always be kept close to the unit’s location of operation or directly on the pump set.
Part Number: _______________________________________
Serial Numbers: _____________________________________
These operating instructions contain fundamental information and precautionary notes. Please read the manual
thoroughly prior to installation of unit, electrical connection and commissioning. It is imperative to comply with all other
operating instructions referring to components of individual units.
I-120
120 16.02.EN

Table of Contents

Questions and Answers

  • M
    Maria WalshAug 13, 2025
    Why do the bearings on my Carver Pump GH Water Pump run hot?
    • C
      Christopher WhiteAug 13, 2025
      If the bearings on your Carver Pump Water Pump are running hot, it could be due to an incorrect bearing setting. Correct the bearing axial clearance. Alternatively, the bearings may be worn and need replacement.
  • J
    James MillerAug 23, 2025
    How to fix leakage at case joints on my Carver Pump GH Water Pump?
    • T
      Tara SharpAug 23, 2025
      If you're experiencing leakage at the case joints of your Carver Pump Water Pump, the gaskets may be damaged. To resolve this, disassemble the pump and replace the gaskets.
  • C
    Cheryl WagnerNov 1, 2025
    What to do if my Carver Pump Water Pump does not deliver rated capacity?
    • W
      winterskimberlyNov 2, 2025
      If your Carver Pump Water Pump isn't delivering its rated capacity, several factors could be responsible. First, check for excessive system pressure. Compare the GPM and head against design conditions, and consult a local distributor or Carver Pump Company if needed. Ensure the motor speed is correct and the line voltage isn't too low. Make sure valves are fully open, and the discharge line isn't plugged. If necessary, lock valves open to prevent accidental closure. Inspect for a clogged impeller and clean it if needed. Check the power connections to the motor to ensure correct rotation. Replace any defective fuses if the motor is running on only two phases. Disassemble the pump, inspect for excessive wear of internal parts, and replace worn parts. Increase the liquid level in the tank if ...

Summary

EC Declaration of Conformity

SERVICE RECORD PAGE

NOTES ON INSPECTION AND REPAIRS

GENERAL DESCRIPTION AND SAFETY PRECAUTIONS

GENERAL INFORMATION

General information about Carver Pump Company products and their expected performance.

MACHINERY DIRECTIVE 2006;42;EC

Product compliance with EU Machinery Directive and related standards.

DISCLAIMER

Statement on the reliability and completeness of the user instructions provided.

PERSONNEL QUALIFICATION AND TRAINING

Requirement for qualified personnel for installation, operation, and maintenance.

PUMP IDENTIFICATION

Details on how to identify pump type, size, and serial number from the nameplate.

PARTS INVENTORY GUIDE

Guidance on keeping spare parts readily available for maintenance.

PARTS ORDERING

Information required for ordering replacement parts correctly.

UNAUTHORIZED MODIFICATION AND MANUFACTURE OF SPARE PARTS

Restrictions on modifying the unit or using non-authorized spare parts.

UNAUTHORIZED MODES OF OPERATION

Validity of warranty depends on adhering to designated use and nameplate limits.

SCOPE OF COMPLIANCE

Clarifies responsibility for pump set assembly and conformity when supplied as bare shaft.

SAFETY AWARENESS

Importance of complying with safety instructions, regulations, and internal procedures.

SAFETY INSTRUCTIONS FOR THE OPERATOR;USER

Safety guidelines for operators, covering guards, leaks, and electrical hazards.

SAFETY INSTRUCTIONS FOR MAINTENANCE, INSPECTION AND INSTALLATION WORK

Guidelines for personnel performing maintenance, inspection, and installation.

GENERAL SAFETY INSTRUCTIONS

General safety practices related to laws, electrical work, and personal protective measures.

NON-COMPLIANCE WITH SAFETY INSTRUCTIONS

Consequences of not following safety instructions, including potential hazards and forfeiture of claims.

EQUIPMENT DESCRIPTION

EFFECTS OF FLUIDS

NET POSITIVE SUCTION HEAD (NPSH)

Explanation of NPSH requirements and availability for pump operation.

CHANGING PUMP SPEED

How changing speed affects pump capacity, head, NPSH, and horsepower.

EFFECTS OF VISCOSITY

Impact of liquid viscosity on pump performance and potential heating requirements.

EFFECTS OF SPECIFIC GRAVITY

How specific gravity affects discharge pressure and brake horsepower, not capacity or head.

TECHNICAL DATA

INSPECTION AND STORAGE

INSPECTION

Procedures for inspecting the pumping unit upon receipt to check for damage or missing parts.

PACKING FOR RETURN

Instructions for preparing and returning a pumping unit for repair or service.

STORAGE OF PUMP

Guidelines for storing the pump to prevent damage and ensure readiness for operation.

INSTALLATION

LOCATION

Criteria for selecting an appropriate installation location for the pump assembly.

HANDLING

Safe practices for lifting and moving the pumping unit during installation.

FOUNDATION

Requirements for a suitable concrete foundation to support the pump unit and prevent vibration.

LEVELING OF UNIT

Procedures for leveling the pump unit on its foundation using supports and shims.

GROUTING

Steps for applying non-shrinking grout to secure the unit to the foundation.

OPERATION

COUPLING ALIGNMENT

Procedures for aligning pump and motor shafts to ensure proper coupling operation.

PRE-START CAUTIONS

Essential safety checks and procedures before starting the pumping unit.

PRIMING

Methods for priming the pump for both positive and negative suction head systems.

STARTING THE PUMP

Step-by-step instructions for safely starting the pumping unit.

TROUBLESHOOTING OPERATING PROBLEMS

OPERATING CHECKS

Routine checks to perform during pump operation to ensure performance and safety.

STOPPING THE PUMP

Procedures for safely shutting down the pumping unit.

INDEFINITE SHUTDOWN

Procedures for shutting down the pump for extended periods and measures to take.

MAINTENANCE

LUBRICATION OF PUMP BEARINGS

Procedures for lubricating the pump's ball bearings.

LUBRICATION OF MOTOR BEARINGS

Instructions for lubricating motor ball bearings.

TORQUE VALUES

Recommended torque values for fasteners during assembly and maintenance.

SERVICE AND REPAIR

PREPARATIONS FOR DISASSEMBLY OF PUMP

Steps to take before disassembling the pump for service or repair.

DISASSEMBLY OF PUMP

Detailed instructions for taking the pump apart for service.

PARTS INSPECTION

Procedures for inspecting pump components after disassembly.

REASSEMBLY OF PUMP

Step-by-step instructions for reassembling the pump after service.

REPLACEMENT OF PACKING

Instructions for replacing worn packing in the stuffing box.

REPLACEMENT OF MECHANICAL SEAL

Procedures for replacing the mechanical seal.

REPLACEMENT OF OPTIONAL WEAR RING ON PUMP EQUIPPED WITH ENCLOSED IMPELLER

Instructions for replacing wear rings in enclosed impellers.

MOTOR

CHECK VALVE

PARTS LISTS AND DRAWINGS

Carver Pump GH Specifications

General IconGeneral
BrandCarver Pump
ModelGH
CategoryWater Pump
LanguageEnglish

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