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Liberty Pumps LE40 Series User Manual

Liberty Pumps LE40 Series
12 pages
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For pressure sewer applications, verify a Redundant Check Valve Assembly (curb stop and check valve) is installed between the pump
discharge and the street main, as close to the public right-of-way as possible, on all installations to protect from system pressures.
Installer: Manual must
remain with owner/operator.
Record information from pump nameplate:
Model:
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 1-800-543-2550
fax: 1-585-494-1839
www.LibertyPumps.com
Keep this manual handy for future reference.
For replacement manual, visit LibertyPumps.com,
or contact Liberty Pumps at 1-800-543-2550.
Retain dated sales receipt for warranty.
Serial:
Mfg Date:
Install Date:
Installation Manual
7034000N
Copyright © Liberty Pumps, Inc. 2022
All rights reserved.
Submersible Sewage Pumps
LE and LEH-Series
Models
LE40-Series 4/10 hp
LE50-Series 1/2 hp
LE70-Series 3/4 hp
LE100-Series 1 hp
LEH100-Series 1 hp
LEH150-Series 1-1/2 hp
LEH200-Series 2 hp
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Liberty Pumps LE40 Series Specifications

General IconGeneral
Discharge Size1-1/2" NPT
Solids Handling1/2"
Motor HousingCast Iron
Thermal ProtectionYes
Warranty3 Years
Voltage115V
Cord Length10 ft
Switch TypeVertical Float
Impeller MaterialThermoplastic
Seal TypeMechanical
Weight22 lbs

Summary

Installation Manual

Pump Models Overview

Lists the available pump models and their horsepower.

Safety and Guidelines

Safety Precautions and Warnings

Details critical warnings about electric shock and general hazards.

Understanding Safety Symbols

Explains safety alert symbols and their meanings.

Critical Safety Risks

Risk of Fire Hazards

Warns about fire hazards associated with product usage and installation.

Risk of Serious Injury or Death

Highlights severe risks from improper installation or operation.

Pump Specifications and Handling

Model Specifications

Provides guidance on selecting pumps based on specifications and performance.

Inspection and Storage

Outlines procedures for inspecting pumps upon receipt and proper storage methods.

Pump Installation Preparation

Float Switch Operation

Explains automatic and manual float switch operations and settings.

Basin and Site Preparation

Details pre-installation steps, including basin requirements and preparation.

Installation Procedures

Electrical Connections

Covers wiring and connection requirements for pump installation.

3-Phase Pump Rotation Verification

Explains how to check and correct pump rotation for 3-phase models.

System Discharge and Operation

Discharge Requirements

Describes requirements for check valves, gate valves, and discharge piping.

Piggyback Switch Operation

Details how to use the piggyback switch for temporary manual operation.

Wiring and System Configurations

Automatic Pump Direct Wiring

Illustrates direct wiring for automatic 1-phase pumps.

Simplex and Duplex Systems

Explains typical installation setups for single and dual pump systems.

Operation and Maintenance

Starting the Pump System

Steps for verifying components and initial system start-up.

Maintenance and Troubleshooting

Covers routine checks and common issues with pumps.

Troubleshooting Guidance

Troubleshooting Matrix

Provides a table of common problems, causes, and corrective actions.

Product Warranty

Wholesale Products Limited Warranty

Details the terms and conditions of the product warranty.

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