Liberty Pumps 331 - Manual (Page 2)

©Copyright 2011 Liberty Pumps Inc. All rights reserved 2
Before use, please read the following instructions carefully. Each Liberty Pump is individually factory tested to ensure proper
performance. Closely following these instructions will eliminate potential operating problems, providing years of trouble-free service.
This portable transfer pump is designed for such applications as emptying water heaters, swimming pool covers, livestock tanks, boats,
etc. When used for charging or servicing hydronic systems, the pump must be flushed with clear water afterwards to prevent corrosion.
It can also be used for an intermittent pressure boost for applications such as washing cars, cleaning driveways, etc. The motor is a
brush type air-cooled design.
Do not use under water or in wet areas. Pump is intended for dry locations only.
Do not use this pump with water over 140  F.
This manual contains information that is very important to know and understand. This information is provided for SAFETY and to
PREVENT EQUIPMENT PROBLEMS.
Do not submerge motor or allow motor to be exposed to water. Personal injury and/or death could result.
Do not use to pump flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. Do not use in a
flammable and/or explosive atmosphere. Personal injury and/or death could result.
Risk of fatal electrical shock. Never remove the round grounding blade (see Fig. 1).
Cutting the cord or plug will void the warranty and make the pump inoperable.

Always disconnect the pump from power source before attempting to install or service the pump. Never
handle a pump with wet hands or when standing on a wet or damp surface or in water. Fatal electrical shock could occur.

The pump should be plugged into a properly fused electrical outlet with a ground fault circuit interrupter (GFCI) that conforms to
current National Electric codes (NEC) and local codes. All wiring must be performed by a qualified electrician.

This pump has been fitted with a 20’ power cord. Do not use an extension cord unless absolutely necessary. Follow the Extension
Cord Length Table for proper gauge of a 3-wire, grounding type extension cord.

Disconnect power and release all pressure within the system before servicing any component.

Drain all liquids from system before servicing.

Read all instructions before operation.

Secure the discharge line before starting the pump. An unsecured discharge line under pressure may whip. Personal injury and/or
death could result.

Periodically inspect pump and system components, checking for weak and/or worn hoses. Be sure all connections are secure.

Protect electrical cord from sharp objects, hot surfaces, oil and chemicals. Avoid kinking the power cord.
Extension Cord Length Table:
Length 25 ft 50 ft 100 ft
Wire Size #16 #16 #14
2. Safety Guidelines
1. General Information