ITT VJC User manual

Installation, Operation, and
Maintenance Manual
Model VJC

Table of Contents
1 Introduction and Safety ....................................................................................................................................3
1.1 Important Safety Notice.............................................................................................................................3
1.2 Safety warnings.........................................................................................................................................3
1.3 Safety ........................................................................................................................................................4
1.4 General precautions .................................................................................................................................. 5
1.5 ATEX Considerations and Intended Use.................................................................................................. 8
1.6 Parts .......................................................................................................................................................... 9
2 Model VJC Installation Check Sheet .............................................................................................................10
2.1 Model VJC installation check sheet......................................................................................................... 10
3 Nameplate Information.................................................................................................................................... 11
3.1 Nameplate information ............................................................................................................................ 11
4 General .............................................................................................................................................................12
4.1 General.................................................................................................................................................... 12
4.1.1 Introduction ...................................................................................................................................12
4.1.2 Importance of instructions .............................................................................................................12
4.1.3 Special warnings ...........................................................................................................................12
4.1.4
Receiving and inspection - shortages .............................................................................................. 12
4.1.5 Preservation and storage ..............................................................................................................12
5 Installation Instructions - Vertical Pumps ..................................................................................................... 14
5.1 Installation Instructions-Vertical Pumps...................................................................................................14
5.1.1 Location of pump...........................................................................................................................14
5.1.2 Pump support................................................................................................................................ 14
5.1.3 Discharge piping ...........................................................................................................................14
5.1.4
Sump................................................................................................................................................ 14
5.1.5 Direct connect - alignment ............................................................................................................14
5.1.6 V-belt drive -alignment ..................................................................................................................19
5.1.7 FACTORS THAT MAY DISTURB ALIGNMENT............................................................................ 20
6 Starting a Vertical Pump .................................................................................................................................22
6.1 Starting a vertical pump........................................................................................................................... 22
6.1.1 Pump support................................................................................................................................ 22
6.1.2 Bearing lubrication ........................................................................................................................22
6.1.3 Shaft rotation................................................................................................................................. 22
6.1.4 Correct driver rotation ...................................................................................................................22
6.1.5 Bearing housing seals................................................................................................................... 22
6.1.6 Priming ..........................................................................................................................................22
6.1.7 Special warning............................................................................................................................. 22
7 Operating and Maintenance Instructions...................................................................................................... 24
7.1 Operating and Maintenance Instructions................................................................................................. 24
7.1.1 Lubrication.....................................................................................................................................24
7.1.2 Maintained capacity ......................................................................................................................24
7.1.3 Seals ............................................................................................................................................. 25
7.1.4 Duplex thrust bearing replacement ............................................................................................... 25
Table of Contents
Model VJC Installation, Operation, and Maintenance Manual 1

7.1.5 Gaskets and o-ring seals ..............................................................................................................25
7.1.6 MAINTENANCE SCHEDULE .......................................................................................................25
8 Disassembly and Reassembly ....................................................................................................................... 27
8.1 Disassembly and Reassembly ................................................................................................................27
8.1.1 Disassembly of a bottom suction pump - VJC ..............................................................................27
8.1.2 Disassembly of bearing housing and shaft assembly ................................................................... 28
8.1.3 INSPECTION AND PARTS REPLACEMENT GUIDELINES ........................................................ 29
8.1.4 Reassembly of bearing housing and shaft assembly.................................................................... 29
8.1.5 Pump reassembly -- vertical bottom suction - VJC ....................................................................... 29
8.1.6 VJC section drawing .....................................................................................................................30
9 Checklist for Locating Trouble.......................................................................................................................34
9.1 Check List for Locating Trouble............................................................................................................... 34
9.1.1 Insufficient capacity....................................................................................................................... 34
9.1.2 Insufficient pressure ......................................................................................................................34
9.1.3 Motor overload .............................................................................................................................. 34
9.1.4 Pump vibration .............................................................................................................................. 34
9.1.5 Leak at column pipe ......................................................................................................................34
9.1.6 Water hammer............................................................................................................................... 35
10 Ordering Spare Parts ....................................................................................................................................36
10.1 Ordering Spare Parts ............................................................................................................................ 36
10.1.1 Replacement parts procedure..................................................................................................... 36
10.1.2 Recommended spare parts......................................................................................................... 36
Table of Contents
2 Model VJC Installation, Operation, and Maintenance Manual

1 Introduction and Safety
1.1 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 man-
ual will minimize your risk of injury.
ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and operat-
ed.
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 guide-
lines outlined in this Pump Safety Manual and the Instruction, Operation, and Maintenance (IOM) man-
ual. Current manuals are available at https://www.gouldspumps.com/en-US/Tools-and-Resources/Litera-
ture/ 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 https://www.gouldspumps.com
1.2 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 con-
tents of the pump and eliminate the possibility of exposure, particularly if hazardous and/or tox-
ic. Potential hazards include, but are not limited to, high temperature, flammable, acidic, caus-
tic, explosive, and other risks.
1 Introduction and Safety
Model VJC Installation, Operation, and Maintenance Manual 3

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 for-
bidden. 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 http://www.gouldspumps.com/literature.
1.3 Safety
Definitions
Throughout this manual the words Warning, Caution, Electrical, and ATEX are used to indicate where
special operator attention is required.
Observe all Cautions and Warnings highlighted in the Pump Safety Manual and the IOM provided with
your equipment.
WARNING:
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Example: Pump shall never be operated without coupling guard installed correctly.
CAUTION:
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Example: Throttling flow from the suction side may cause cavitation and pump damage.
Electrical Hazard:
WARNING:
Indicates the possibility of electrical risks if directions are not followed.
Example: Lock out driver power to prevent electric shock, accidental start-up, and physical in-
jury.
ATEX:
WARNING:
When installed in potentially explosive atmospheres, the instructions that follow the Ex symbol
must be followed. Personal injury and/or equipment damage may occur if these instructions are
not followed. If there is any question regarding these requirements or if the equipment is to be
modified, please contact an ITT Goulds Pumps representative before proceeding.
Example: Improper impeller adjustment could cause contact between the rotating and station-
ary parts, resulting in a spark and heat generation.
1.3 Safety
4 Model VJC Installation, Operation, and Maintenance Manual

1.4 General precautions
WARNING:
A pump is a pressure vessel with rotating parts that can be hazardous. Hazardous fluids may
be contained by the pump including high temperature, flammable, acidic, caustic, explosive,
and other risks. Operators and maintenance personnel must realize this and follow safety
measures. Personal injuries will result if procedures outlined in this manual are not followed.
ITT Goulds Pumps will not accept responsibility for physical injury, damage or delays caused
by a failure to observe the instructions in this manual and the IOM provided with your equip-
ment.
Table 1: General Precautions
WARNING NEVER APPLY HEAT TO REMOVE IMPELLER. It may explode due to trap-
ped liquid.
WARNING NEVER use heat to disassemble pump due to risk of explosion from tapped
liquid.
WARNING NEVER operate pump without coupling guard correctly installed.
WARNING NEVER run pump below recommended minimum flow when dry, or without
prime.
WARNING ALWAYS lock out power to the driver before performing pump maintenance.
WARNING NEVER operate pump without safety devices installed.
WARNING NEVER operate pump with discharge valve closed.
WARNING NEVER operate pump with suction valve closed.
WARNING DO NOT change service application without approval of an authorized ITT
Goulds Pumps representative.
WARNING Safety Apparel:
•Insulated work gloves when handling hot bearings or using bearing
heater
• Heavy work gloves when handling parts with sharp edges, especially
impellers
• Safety glasses (with side shields) for eye protection
• Steel-toed shoes for foot protection when handling parts, heavy tools,
etc.
• Other personal protective equipment to protect against hazardous/toxic
fluids
WARNING Receiving:
Assembled pumping units and their components are heavy. Failure to properly
lift and support equipment can result in serious physical injury and/or
1.4 General precautions
Model VJC Installation, Operation, and Maintenance Manual 5

equipment damage. Lift equipment only at specifically identified lifting points
or as instructed in the current IOM. Current manuals are available at
www.gouldspumps.com/literature_ioms.html or from your local ITT Goulds
Pumps sales representative. Note: Lifting devices (eyebolts, slings, spreaders,
etc.) must be rated, selected, and used for the entire load being lifted.
WARNING Alignment:
Shaft alignment procedures must be followed to prevent catastrophic failure of
drive components or unintended contact of rotating parts. Follow coupling
manufacturer's coupling installation and operation procedures.
WARNING Before beginning any alignment procedure, make sure driver power is locked
out. Failure to lock out driver power will result in serious physical injury.
CAUTION Piping:
Never draw piping into place by forcing at the flanged connections of the
pump. This may impose dangerous strains on the unit and cause misalign-
ment between pump and driver. Pipe strain will adversely effect the operation
of the pump resulting in physical injury and damage to the equipment.
WARNING Flanged Connections:
Use only fasteners of the proper size and material.
WARNING Replace all corroded fasteners.
WARNING Ensure all fasteners are properly tightened and there are no missing fasten-
ers.
WARNING Startup and Operation:
When installing in a potentially explosive environment, please ensure that the
motor is properly certified.
WARNING Operating pump in reverse rotation may result in contact of metal parts, heat
generation, and breach of containment.
WARNING Lock out driver power to prevent accidental start-up and physical injury.
WARNING The impeller clearance setting procedure must be followed. Improperly setting
the clearance or not following any of the proper procedures can result in
sparks, unexpected heat generation and equipment damage.
WARNING If using a cartridge mechanical seal, the centering clips must be installed and
set screws loosened prior to setting impeller clearance. Failure to do so could
result in sparks, heat generation, and mechanical seal damage.
WARNING The coupling used in an ATEX classified environment must be properly certi-
fied and must be constructed from a non-sparking material.
WARNING Never operate a pump without coupling guard properly installed. Personal in-
jury will occur if pump is run without coupling guard.
1.4 General precautions
6 Model VJC Installation, Operation, and Maintenance Manual

WARNING Make sure to properly lubricate the bearings. Failure to do so may result in ex-
cess heat generation, sparks, and / or premature failure.
CAUTION The mechanical seal used in an ATEX classified environment must be proper-
ly certified. Prior to start up, ensure all points of potential leakage of process
fluid to the work environment are closed.
CAUTION Never operate the pump without liquid supplied to mechanical seal. Running a
mechanical seal dry, even for a few seconds, can cause seal damage and
must be avoided. Physical injury can occur if mechanical seal fails.
WARNING Never attempt to replace packing until the driver is properly locked out and the
coupling spacer is removed.
WARNING Dynamic seals are not allowed in an ATEX classified environment.
WARNING DO NOT operate pump below minimum rated flows or with suction and/or dis-
charge valve closed. These conditions may create an explosive hazard due to
vaporization of pumpage and can quickly lead to pump failure and physical in-
jury
WARNING Ensure pump is isolated from system and pressure is relieved before disas-
sembling pump, removing plugs, opening vent or drain valves, or disconnect-
ing piping.
WARNING Shutdown, Disassembly, and Reassembly:
Pump components can be heavy. Proper methods of lifting must be employed
to avoid physical injury and/or equipment damage. Steel toed shoes must be
worn at all times.
WARNING The pump may handle hazardous and/or toxic fluids. Observe proper decon-
tamination procedures. Proper personal protective equipment should be worn.
Precautions must be taken to prevent physical injury. Pumpage must be han-
dled and disposed of in conformance with applicable environmental regula-
tions.
WARNING Operator must be aware of pumpage and safety precautions to prevent physi-
cal injury.
WARNING Lock out driver power to prevent accidental startup and physical injury.
CAUTION Allow all system and pump components to cool before handling them to pre-
vent physical injury.
CAUTION If pump is a Model NM3171, NM3196, 3198, 3298, V3298, SP3298, 4150,
4550, or 3107, there may be a risk of static electric discharge from plastic
parts that are not properly grounded. If pumped fluid is non-conductive, pump
should be drained and flushed with a conductive fluid under conditions that
will not allow for a spark to be released to the atmosphere.
WARNING Never apply heat to remove an impeller. The use of heat may cause an explo-
sion due to trapped fluid, resulting in severe physical injury and property dam-
age.
CAUTION Wear heavy work gloves when handling impellers as sharp edges may cause
physical injury.
CAUTION Wear insulated gloves when using a bearing heater. Bearings will get hot and
can cause physical injury.
1.4 General precautions
Model VJC Installation, Operation, and Maintenance Manual 7

WARNING Noise:
Sound pressure levels may exceed 80 dbA in operating process plants. Clear
visual warnings or other indicators should be available to those entering an
area with unsafe noise levels. Personnel should wear appropriate hearing pro-
tection when working on or around any equipment, including pumps. Consider
limiting personnel’s exposure time to noise or, where possible, enclosing
equipment to reduce noise. Local law may provide specific guidance regard-
ing exposure of personnel to noise and when noise exposure reduction is re-
quired.
WARNING Temperature:
Equipment and piping surfaces may exceed 130ºF (54ºC) in operating proc-
ess plants. Clear visual warnings or other indicators should alert personnel to
surfaces that may reach a potentially unsafe temperature. Do not touch hot
surfaces. Allow pumps operating at a high temperature to cool sufficiently be-
fore performing maintenance. If touching a hot surface cannot be avoided,
personnel should wear appropriate gloves, clothing, and other protective gear
as necessary. Local law may provide specific guidance regarding exposure of
personnel to unsafe temperatures.
1.5 ATEX Considerations and Intended Use
Special care must be taken in potentially explosive environments to ensure that the equipment is proper-
ly maintained. This includes but is not limited to:
Description of ATEX
The ATEX directives are a specification enforced in Europe for electrical and non-electrical equipment
installed in Europe. ATEX deals with the control of potentially explosive atmospheres and the standards
of equipment and protective systems used within these atmospheres. The relevance of the ATEX re-
quirements is not limited to Europe. You can apply these guidelines to equipment installed in any poten-
tially explosive atmosphere.
Guidelines for compliance
Compliance is fulfilled only when you operate the unit within its intended use. Do not change the condi-
tions of the service without the approval of an ITT representative. When you install or maintain explosion
proof products, always comply with the directive and applicable standards (for example, IEC/EN
60079-14).
1. Monitoring the and liquid end temperature.
2. Maintaining proper bearing lubrication.
3. Ensuring that the pump is operated in the intended hydraulic range.
The ATEX conformance is only applicable when the pump unit is operated within its intended use. Oper-
ating, installing or maintaining the pump unit in any way that is not covered in the Instruction, Operation,
and Maintenance manual (IOM) can cause serious personal injury or damage to the equipment. This in-
cludes any modification to the equipment or use of parts not provided by ITT Goulds Pumps. If there is
any question regarding the intended use of the equipment, please contact an ITT Goulds representative
before proceeding.
Current IOMs are available at https://www.gouldspumps.com/en-US/Tools-and-Resources/Literature/
IOMs/ or from your local ITT Goulds Pumps Sales representative.
1.5 ATEX Considerations and Intended Use
8 Model VJC Installation, Operation, and Maintenance Manual

All pumping unit (pump, seal, coupling, motor and pump accessories) certified for use in an ATEX classi-
fied environment, are identified by an ATEX tag secured to the pump or the on which it is mounted. A
typical tag would look like this:
Figure 1: Typical ATEX pump nameplate
Table 2: Temperature class definitions
Code Maximum permissible
pumpage temperature in °C | °F
Minimum permissible pumpage temperature in °C | °F
T1 450 | 842 372 | 700
T2 300 | 572 277 | 530
T3 200 | 392 177 | 350
T4 135 | 275 113 | 235
T5 100 | 212 Option not available
T6 85 | 185 Option not available
The code classification marked on the equipment must be in accordance with the specified area where
the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds
Pumps sales representative before proceeding.
The code classification marked on the equipment must be in accordance with the specified area where
the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds
Pumps sales representative before proceeding.
1.6 Parts
The use of genuine Goulds parts will provide the safest and most
reliable operation of your pump. ITT Goulds Pumps ISO certifica-
tion and quality control procedures ensure the parts are manufac-
tured to the highest quality and safety levels.
Please contact your local Goulds representative for details on
genuine Goulds parts.
1.6 Parts
Model VJC Installation, Operation, and Maintenance Manual 9

2 Model VJC Installation Check Sheet
2.1 Model VJC installation check sheet
[ ] Inspect pump for shipping damage. Note the damage on the receipt and freight bill. Make a
claim to transportation company.
[ ] Study Installation, Operation and Maintenance Manual (IOM) prior to operation.
[ ] Check for free operation of pump shaft. Adjust the impeller if binding is found. Refer to IOM in
7.1.3 Seals on page 25 1c.
[ ] Connect the pump to foundation and piping. Piping must not add any strain to the pump.
[ ] Disconnect the coupling or V-belt, and check the rotation of motor. (Incorrect pump rotation
will critically damage pump). Reconnect driver.
[ ] Attach coupling guard and all other safety devices.
[ ] Open the discharge valve to prime the pump. If oil, air, or water leaks from the column pipe or
fittings, close the discharge valve and determine the cause of the leak before operating of the
pump.
[ ] Run the pump at proper speed and hydraulic operating point.
2 Model VJC Installation Check Sheet
10 Model VJC Installation, Operation, and Maintenance Manual

3 Nameplate Information
3.1 Nameplate information
Figure 2:
All VJC pumps carry the same Goulds nameplate, shown in Fig. 1. This nameplate provides information
about the pump's hydraulic characteristics.
ATEX nameplate
Figure 3: ATEX nameplate
Nameplate field Explanation
II Group 2
2 Category 2
G/D Pump can be used when gas and dust are present
T4 Temperature class
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure the pump driver and all other auxiliary components meet the required area classifica-
tion at the site. If they are not compatible, do not operate the equipment and contact an ITT
representative before proceeding.
3 Nameplate Information
Model VJC Installation, Operation, and Maintenance Manual 11

4 General
4.1 General
4.1.1 Introduction
This instruction manual is intended to assist those involved with the installation, operation and mainte-
nance of Goulds' SPD slurry pumps. It is recommended that this manual be thoroughly reviewed prior to
installing or performing any work on the pump or motor.
4.1.2 Importance of instructions
The design, material, and workmanship incorporated in the construction of Goulds' pumps makes them
capable of giving long, trouble-free service. The life and satisfactory service of any mechanical unit, how-
ever, is enhanced and extended by periodic inspection and careful maintenance. This Instruction Manual
was prepared to assist operators in understanding the construction and correct methods of installing, op-
erating, and maintaining these pumps.
Study thoroughly Sections 4.1 General on page 12, 5.1 Installation Instructions-Vertical Pumps on page
14, 6.1 Starting a vertical pump on page 22, 7.1 Operating and Maintenance Instructions on page 24,
and carefully follow the instructions for installation and operation. Sections V, VI, VII and VIII are answers
to trouble and maintenance questions.
Keep this instruction manual handy for reference. Further information can be obtained by contacting the
Slurry Pump Division, East Centre St., Ashland, PA 17921 or your local representative.
4.1.3 Special warnings
Goulds' Slurry Pump Division will not be liable for any damages or delay caused by failure to comply with
the provisions of this Instruction Manual. This pump is not to be operated at speeds, working pressures,
discharge pressures, or temperatures higher than, nor used with liquids other than stated in the original
order acknowledgement, without written permission of the Slurry Pump Division, Goulds Pumps, Inc.
4.1.4
Receiving and inspection - shortages
Care should be taken when unloading any Goulds' pump. If shipment is not delivered in good order and
in accordance with the bill of lading, note the damage and shortage on both the receipt and freight bill.
Make any claims to the transportation company promptly.
Instruction sheets on various components as well as the Instruction Book for the pump are included in
the shipment. Do not discard.
4.1.5 Preservation and storage
Gould's Slurry Pump Division's normal domestic shipping and storage preparation is suitable for protect-
ing the pump during shipment in covered trucks. It also provides protection during covered storage at the
job-site and for a short period between installation and start-up.
One approach is to provide special preservatives and wrapping before shipment. However, after installa-
tion, the protective wrappings will have to be removed. Therefore, application of preservatives after in-
stallation is considered good practice. Hand rotation of the shaft is recommended every 30 days to pre-
vent damage to the bearings.
If the pump is to be idle and exposed to the elements for an extended period, either before or after instal-
lation, special precautions are required. Preservative treatment of bearings and machined surfaces will
4 General
12 Model VJC Installation, Operation, and Maintenance Manual

be required. Also, driver and coupling manufacturers should be contacted for long term storage proce-
dures.
4.1 General
Model VJC Installation, Operation, and Maintenance Manual 13

5 Installation Instructions - Vertical Pumps
5.1 Installation Instructions-Vertical Pumps
5.1.1 Location of pump
The unit should be located in a clean, dry area free from flooding. The area should provide adequate
space for maintenance and repair, considering complete disassembly and handling of equipment. The
unit should be positioned to provide the most efficient pipeline system.
5.1.2 Pump support
The pump support must be sufficiently substantial and level to give rigid support to the pump and to ab-
sorb vibration.
The bolts which secure the pump to the foundation should be 1/8 in. less in diameter than the holes in
the pump frame (size is shown on the certified dimension drawing).
CAUTION:
Provision must be made to support discharge piping independently from the pump to prevent
excessive loads and maintain pump-driver alignment.
5.1.3 Discharge piping
Short pipelines and a minimum of elbows and fittings result in the least amount of pipe friction during
discharge. Excessive friction losses result in insufficient head.
The pumps are not designed to carry loads imposed by the weight of the pipeline. The pipe must be sup-
ported independently near the pump to prevent any strain being transmitted to the pump.
Arrangements should be made to keep the pump from back-spinning severely during shutdown. On a
long discharge line, a non-slam check valve should be installed.
5.1.4
Sump
The sump must be screened to prevent any foreign objects from falling into the sump and damaging the
pump. The openings in the screening should be smaller than the openings in the pump impeller.
5.1.5 Direct connect - alignment
NOTICE:
Before beginning any alignment procedure make sure driver power is locked out.
The points at which alignment are checked and adjusted are:
•Initial Alignment is done prior to operation when the pump and the driver are at ambient tempera-
ture.
• Final Alignment is done after operation when the pump and driver are at operating temperature.
NOTICE:
Proper alignment is the responsibility of the installer and user of the unit.
5 Installation Instructions - Vertical Pumps
14 Model VJC Installation, Operation, and Maintenance Manual

Accurate alignment of the equipment must be attained. Trouble free operation can be accomplished
by following these procedures.
Alignment checks
Initial Alignment (Cold Alignment)
•Before Mounting Baseplate - To ensure alignment can be attained.
• After Mounting Baseplate - To ensure no changes have occurred during the mounting process.
• After Connecting Piping - To ensure pipe strains haven't altered alignment. If changes have occur-
red, alter piping to remove pipe strains on pump flanges.
Final Alignment (Hot Alignment)
• After First Run - To obtain correct alignment when both pump and driver are at operating tempera-
ture. Thereafter, alignment should be checked periodically in accordance with plant operating pro-
cedures.
Alignment criteria
Disconnect coupling halves before proceeding with the alignment. Check for parallel and angular align-
ment with either the Dial Indicator Method or the Straight- Edge Method outlined below.
5.1 Installation Instructions-Vertical Pumps
Model VJC Installation, Operation, and Maintenance Manual 15

Figure 4: Direct connect alignment
The faces and outside diameters of the coupling halves must be square and concentric with the bores.
Good alignment is achieved when the dial indicator readings, for both parallel and angular misalignment,
are 003in. (.076mm) Total Indicated Reading (T.I.R.) or less when the pump and driver are at operating
temperature (Final Alignment). Fig. 2 provides a picture of what to look for.
Setup
1. Mount two dial indicators on one of the coupling halves (X) so that hey contact the other coupling
half (Y), see Fig. 3.
5.1 Installation Instructions-Vertical Pumps
16 Model VJC Installation, Operation, and Maintenance Manual

Figure 5: Dial indicator setup
2. Check setting of indicators by rotating coupling half X to ensure indicators stay in contact with
coupling half Y but do not bottom out. Adjust indicators accordingly.
Measurement techniques
1. To ensure accuracy of indicator readings, always rotate both coupling halves together so indica-
tors contact the same point on coupling half Y. This will eliminate any measurement problems
due to runout on coupling half Y.
2. Take indicator measurements with driver hold-down bolts tightened. Loosen hold-down bolts prior
to making alignment corrections.
3. Take care not to damage indicators when moving driver during alignment corrections.
Alignment Procedure
A check for both angular and parallel alignment must be completed and the necessary adjustments be
made to obtain the .003in. (.076mm) T.I.R. stated in the alignment criteria.
Angular alignment
A unit is in angular alignment when indicator A (Angular Indicator), Fig 3, does not vary by more
than .003in. (.076mm) as measured at four points on the coupling periphery goo apart at operating tem-
perature. There are two methods outlined below which are acceptable to achieve the desired alignment.
Method 1 - Dial Indicator Method
For the following steps, refer to Fig. 4.
1. Zero indicator A at position 1 of coupling half Y. Mark this position on both flanges.
2. Rotate both flanges 180° to position 3. Observe needle and record reading.
3. Negative Reading - The coupling halves are further apart at position 3 than position 1.
Positive Reading - The coupling halves are closer at position 1 than position 3.
5.1 Installation Instructions-Vertical Pumps
Model VJC Installation, Operation, and Maintenance Manual 17

Figure 6: Directions of viewing coupling. View from top of pump.
4.
The angular alignment should not be a problem. If, however, .003" (.076mm) T.I.R. or less is not
attainable check the motor and motor mount for perpendicularity to their respective centerlines.
5. Repeat steps 1-4 substituting position 2 for position 1 and position 4 for position 3. Use the same
marks made on the coupling from positions 1 and be sure to turn the coupling halves together.
Method 2 - Feeler Gauge Method
For the following steps refer to Fig. 4.
1. Insert a feeler gauge at position 1 at the periphery of the couplings. Mark this position on both
flanges.
2. Record the largest gauge size which fits snugly between the two flanges.
3. Rotate both flanges to position 3 - 180°.
4. Insert a feeler gauge at position 3 at the periphery of the couplings.
5. Record the largest gauge size which fits snugly between the two flanges.
6. Calculate the difference between the readings at positions 1 and 3. The difference should not be
greater than .003in. (.076mm). If, however, .003in. (.076mm) T.I.R. or less is not attainable check
the motor and motor mount for perpendicularity to their respective centerlines.
7. Repeat steps 1-6 substituting positions 2 and 4 for positions 1 and 3 respectively. Use the same
marks made on the coupling from position 1 and be sure to turn the coupling halves together.
Parallel alignment
The unit is in parallel alignment when indicator P (Parallel Indicator) does not vary by more than .003in.
(.076mm) as measured at four points on the coupling periphery 900 apart at operating temperature.
There are two methods outlined below which are acceptable to achieve the desired alignment.
Method 1 - Dial Indicator Method
Tip: Since the coupling halves are
For the following steps, refer to Fig. 4.
1. Zero indicator P at position 1 of coupling half Y. Mark this position on both flanges.
2. Rotate both flanges 180° to position 3. Observe needle and record reading.
3. Negative Reading - The coupling half Y is shifted toward position 1. If the value is greater
than .003in. (.076mm), shift the motor accordingly.
5.1 Installation Instructions-Vertical Pumps
18 Model VJC Installation, Operation, and Maintenance Manual