Goulds Pumps 3996 Manual

Model 3996
Lenntech
[e-mail] Tel. [phone]
www.lenntech.com Fax. [phone]
[e-mail] Tel. [phone]
www.lenntech.com Fax. [phone]
Lenntech
Installation, Operation and Maintenance Instructions

FOREWORD
This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Model 3996 pump. This manual covers
the standard product plus common options that are available. For special options, supplemental instructions are supplied. This manual
must be read and understood before installation and start-up.
The design, materials, and workmanship incorporated in the construction of Goulds pumps makes them capable of giving trouble-free
service. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct application, proper
installation, periodic inspection, condition monitoring and careful maintenance. This instruction manual was prepared to assist operators in
understanding the construction and the correct methods of installing, operating, and maintaining these pumps.
Goulds shall not be liable for physical injury, damage or delays caused by a failure to observe the instructions for Installation,
Operation, and Maintenance contained in this manual.
Warranty is valid only when genuine Goulds parts are used.
Use of the equipment on a service other than stated in the order will nullify the warranty, unless written approval is obtained in advance
from Goulds Pumps.
Supervision by an authorized Goulds representative is recommended to assure proper installation.
Additional manuals can be obtained by contacting your local Goulds representative or by calling 1-800-446-8537.
THIS MANUAL EXPLAINS
nProper Installation
nStart-up Procedures
nOperation Procedures
nRoutine Maintenance
nPump Overhaul
nTrouble Shooting
nOrdering Spare or Repair Parts
3996 IOM 9/2010 5

TABLE OF CONTENTS
9 SAFETY
13 GENERAL INFORMATION
17 INSTALLATION
21 OPERATION
27 PREVENTATIVE MAINTENANCE
33 DISASSEMBLY/REASSEMBLY
45 TROUBLESHOOTING
3996 IOM 9/2010 7
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S-1
IMPORTANT SAFETY NOTICE
To: Our Valued Customers
User safety is a major focus in the design of our products. Following the precautions outlined in this
manual will minimize your risk of injury.
ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and
operated.
Safe installation, operation, and maintenance of ITT Goulds Pumps equipment are an essential end user
responsibility. This Pump Safety Manual identifies specific safety risks that must be considered at all
times during product life. Understanding and adhering to these safety warnings is mandatory to ensure
personnel, property, and/or the environment will not be harmed. Adherence to these warnings alone,
however, is not sufficient — it is anticipated that the end user will also comply with industry and corporate
safety standards. Identifying and eliminating unsafe installation, operating and maintenance practices is
the responsibility of all individuals involved in the installation, operation, and maintenance of industrial
equipment.
Please take the time to review and understand the safe installation, operation, and maintenance guidelines
outlined in this Pump Safety Manual and the Instruction, Operation, and Maintenance (IOM) manual.
Current manuals are available at www.gouldspumps.com/literature_ioms.html or by contacting
your nearest Goulds Pumps sales representative.
These manuals must be read and understood before installation and start-up.
For additional information, contact your nearest Goulds Pumps sales representative or visit our Web site at
www.gouldspumps.com.

S-2
SAFETY WARNINGS
Specific to pumping equipment, significant risks bear reinforcement above and beyond normal safety precautions.
WARNING
A pump is a pressure vessel with rotating parts that can be hazardous. Any pressure vessel can explode,
rupture, or discharge its contents if sufficiently over pressurized causing death, personal injury, property
damage, and/or damage to the environment. All necessary measures must be taken to ensure over
pressurization does not occur.
WARNING
Operation of any pumping system with a blocked suction and discharge must be avoided in all cases.
Operation, even for a brief period under these conditions, can cause superheating of enclosed pumpage and
result in a violent explosion. All necessary measures must be taken by the end user to ensure this condition is
avoided.
WARNING
The pump may handle hazardous and/or toxic fluids. Care must be taken to identify the contents of the pump
and eliminate the possibility of exposure, particularly if hazardous and/or toxic. Potential hazards include, but
are not limited to, high temperature, flammable, acidic, caustic, explosive, and other risks.
WARNING
Pumping equipment Instruction, Operation, and Maintenance manuals clearly identify accepted methods for
disassembling pumping units. These methods must be adhered to. Specifically, applying heat to impellers
and/or impeller retaining devices to aid in their removal is strictly forbidden. Trapped liquid can rapidly
expand and result in a violent explosion and injury.
ITT Goulds Pumps will not accept responsibility for physical injury, damage, or delays caused by a failure to
observe the instructions for installation, operation, and maintenance contained in this Pump Safety Manual or the
current IOM available at www.gouldspumps.com/literature.