Goulds Pumps JC User Manual

Installation, Operation and Maintenance Instructions

Model JC

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4 JC IOM 5/08

TABLE OF CONTENTS

PAGE SECTION

7 SAFETY

11 GENERAL INFORMATION

13 INSTALLATION

17 OPERATION

21 PREVENTIVE MAINTENANCE

27 SPARE PARTS

1

2

3

4

5

6

31 APPENDIX

7

JC IOM 5/08 5

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6 JC IOM 5/08

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
your nearest Goulds Pumps sales representative.

www.gouldspumps.com/literature_ioms.html or by contacting

These manuals must be read and understood before installation and star t-up.

For additional information, contact your nearest Goulds Pumps sales representative or visit our Web site at

www.gouldspumps.com.

S-1

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 hazard o us. An y press ure vessel can explode,
rupture, or discharge its contents if sufficiently ove r press u r i zed causi n g deat h, 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.

S-2

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 this 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 avoi ded, could result in minor or moderate injury.

Example: Throttling flow from the suction side may cause cavitation and pump damage.

ELECTRICAL HAZARD



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 injury.

 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:
parts, resulting in a spark and heat generation.

 Improper impeller adjustment could cause contact between the rotating and stationary

S-3

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
equipment.

WARNING

WARNING

General Precautions

NEVER use heat to disassemble pump due to risk of explosion from tapped liquid.

NEVER APPLY HEAT TO REMOVE IMPELLER. It may explode due to
trapped liquid.

WARNING

WARNING

WARNING
WARNING

WARNING
WARNING

WARNING

WARNING

WARNING





NEVER operate pump without safety devices installed.






NEVER operate pump without coupling guard correctly installed.
NEVER run pump below recommended minimum flow when dry, or without

prime.
ALWAYS lock out power to the driver befo re per fo rming pump maintenance.

NEVER operate pump with discharge valve closed.
NEVER operate pump with suction valve closed.

DO NOT change service application without approval of an authorized ITT
Goulds Pumps representative.

Safety Apparel:

 Insulated work gloves when handling hot bearings or using bearing heater
 Heavy work gloves when handling parts with shar p ed ges, 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

Receiving:

Assembled pumping units and their components are heavy. Failure to properly lift
and support equipment can result in serious physical injury and/or 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.

Alignment:

WARNING

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.

S-4

WARNING

CAUTION

General Precautions

Before beginning any alignment procedure, make sure driver power is locked out.



Failure to lock out driver power will result in serious physical injury.

Piping:

Never draw piping into place by forcing at the flan ged con necti on s of t he pump.
This may impose dangerous strains on the unit and cause misalignment between



pump and driver. Pipe strain will adversely effect the operation of the pump
resulting in physical injury and damage to the equipment.

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

CAUTION

CAUTION

WARNING

Flanged Connections:

Use only fasteners of the proper size and material.
Replace all corroded fasteners.

Ensure all fasteners are properly tightened and there are no missing fasteners.

Startup and Operation:

When installing in a potentially explosive environment, please ensure that the



motor is properly certified.
Operating pump in reverse rotation may result in contact of metal parts, heat



generation, and breach of containment.
Lock out driver power to prevent accidental start-up and physical injury.



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.
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.
The coupling used in an ATEX classified environment must be properly certified



and must be constructed from a non-sparking material.
Never operate a pump without coupling guard properly installed. Personal injury

will occur if pump is run without coupling guard.
Make sure to properly lubricate the bearings. Failure to do so may result in excess



heat generation, sparks, and / or premature failure.
The mechanical seal used in an ATEX classified environment must be properly

certified. Prior to start up, ensure all points of potential leakage of process fluid to



the work environment are closed.
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.
Never attempt to replace packing until the driver is properly locked out and the

coupling spacer is removed.

WARNING

WARNING

S-5

Dynamic seals are not allowed in an ATEX classified environment.



DO NOT operate pump below minimum rated flows or with suction and/or
discharge valve closed. These conditions may create an explosive hazard due to



vaporization of pumpage and can quickly lead to pump failure and physical injury.

WARNING

WARNING

WARNING

WARNING

WARNING

CAUTION

CAUTION

WARNING

CAUTION

CAUTION



General Precautions

Ensure pump is isolated from system and pressure is relieved before
disassembling pump, removing plu gs, ope ni n g vent or drain valves, or
disconnecting piping.

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.

The pump may handle hazardous and/or toxic fluids. Observe proper
decontamination procedures. Proper personal protective equipment should be
worn. Precautions must be taken to prevent physical injury. Pumpage must be
handled and disposed of in conformance with applicable environmental
regulations.

Operator must be aware of pumpage and safety precautions to prevent physical
injury.

Lock out driver power to prevent accidental startup and physical injury.
Allow all system and pump components to cool before handling them to prevent

physical injury.
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.

Never apply heat to remove an impeller. The use of heat may cause an explosion
due to trapped fluid, resulting in severe physical injury and property damage.

Wear heavy work gloves when handling impellers as sharp edges may cause
physical injury.

Wear insulated gloves when using a bearing heater. Bearings will get hot and can
cause physical injury.

S-6

ATEX CONSIDERATIONS and INTENDED USE

Special care must be taken in potentially explosive environments to ensure that the equipment is properly
maintained. This includes but is not limited to:

1. Monitoring the pump frame 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. Operating,
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 includes 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 represe ntative before proceeding.
Current IOMs are available at
Pumps Sales representative.

All pumping unit (pump, seal, coupling, motor and pump accessories) certified for use in an ATEX classified
environment, are identified by an ATEX tag secured to the pump or the baseplate on which it is mounted. A
typical tag would look like this:

www.gouldspumps.com/literature_ioms.html or from your local ITT Goulds

The CE and the Ex designate the ATEX compliance. The code directly below these symbols reads as follows:

II = Group 2
2 = Category 2
G/D = Gas and Dust present
T4 = Temperature class, can be T1 to T6 (see Table 1)

Table 1

Max permissible

surface temperature

Code

T1 842 (450) 700 (372)
T2 572 (300) 530 (277)
T3 392 (200) 350 (177)
T4 275 (135) 235 (113)
T5 212 (100) Option not available
T6 185 (85) Option not available

o

F (oC)

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.

Max permissible

liquid temperature

o

F (oC)

S-7

PARTS

The use of genuine Goulds parts will provide the safest and
most reliable operation of your pump. ITT Goulds Pumps ISO
certification and quality control procedures ensure the parts are
manufactured to the highest quality and safety levels.

Please contact your local Goulds representative for details on
genuine Goulds parts.

S-8

GENERAL INFORMATION

INTRODUCTION ...................................11

IMPORTANCE OF INSTRUCTIONS ........................11

SPECIAL WARNINGS ................................11

RECEIVING INSPECTION - SHORTAGES ....................11

INTRODUCTION

This instruction manual is intended to assist those involved
with the installation, operation and maintenance of Goulds
Ashland Operations slurry pumps. It is recommended that
this manual be thoroughly reviewed prior to installing or
performing any work on the pump or motor.

IMPORTANCE OF INSTRUCTIONS

2

The design, material and workmanship incorporated in the
construction of Goulds Ashland Operations slurry pumps
makes them capable of giving long, trouble-free service.
The life and satisfactory service of any mechanical unit,
however, is enhanced and extended by periodic inspection

SPECIAL WARNINGS

Goulds Ashland Operations 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

RECEIVING INSPECTION - SHORTAGES

Care should be taken when unloading pumps. If shipment is
not delivered in good order and in accordance with the bill
of lading, note the damage or shortage on both receipt and
freight bill. Make any claims to the transportation

company promptly.

and careful maintenance. This manual was prepared to
assist operators in understanding the construction and
correct methods of installing, operating, and maintaining
these pumps.

pressures, or temperatures higher than, nor used with
liquids other than, stated in the original order
acknowledgment, without written permission of the
Ashland Operations, Goulds Pumps, Inc.

JC IOM 5/08

11

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12 JC IOM 5/08

INSTALLATION

PREPARATION FOR SHIPMENT .........................13

INSTALLATION....................................13

PIPING .........................................13

FOUNDATION .....................................14

PUMP DRIVER ALIGNMENT............................15

This section is a general installation and operating
instruction for most Goulds pumps. Specific text and
illustrations are included in this section. To insure pump
performance and operating life, proper installation and

PREPARATION FOR SHIPMENT

Goulds pumps are prepared at the factory for shipment
under covered conditions. They are protected for transport
and short term covered storage. Unless otherwise specified,

INSTALLATION

Equipment that will operate in a potentially explo-

!

sive environment must be installed in accordance
with the following instructions.

All equipment being installed must be properly

!

grounded to prevent unexpected static electric
discharge. If not, a static electric discharge may
occur when the pump is drained and disassembled
for maintenance purposes.

reasonable maintenance are required. The following
instructions are a guide for installation and maintenance
personnel and the pump operator.

3

it is assumed the pump will be installed upon delivery.

Additional protection can be provided by request.

LOCATION OF UNIT

The pump 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.

! WARNING

s

A

Never draw piping into place by forcing at the flanged
connections of the pump. This may impose dangerous
strains on the unit and cause misalignment between
pump and driver. Pipe strain will adversely effect the
operation of the pump resulting in physical injury and
damage to the equipment

$

A

Pump must never be throttled on suction side.

JC IOM 5/08

CAUTION

PIPING

A

NPSHa must always exceed NPSHr as shown on
Goulds performance curves received with order.
Reference Hydraulic Institute for NPSH and pipe
friction values needed to evaluate suction piping

Short, direct suction and discharge pipelines and a
minimum of elbows and fittings result in the least amount
of pipe friction.

! WARNING

s

13

SUCTION PIPING

1. Excessive friction losses will cause cavitation.

2. Must be kept free of air leaks, particularly in long lines
or conditions of high suction lift.

3. Flow regulating valves must not be located on suction
side of the pump.

DISCHARGE PIPING

1. Excessive friction losses result in insufficient head.

2. A check valve should be located in the discharge line
to protect the pump from reverse flow and excessive
pressure.

FOUNDATION

The foundation must be a permanent, rigid support for the
subbase or floorplate. It should be an industrially accepted
design capable of absorbing excessive vibration.
Foundations are typically concrete with anchor bolts cast in
to secure the pump.

PIPING SUPPORT

The pumps are not designed to carry loads imposed by the
weight of the pipeline. Suction and discharge piping must
be supported near the pump, unless otherwise specified.
Pumps and subbases can be designed to carry loads due to
thermal expansion.

An anchor bolt assembly consists of a bolt and washer with
a sleeve 2-½ times the diameter of the bolt. When the
assembly is cast in concrete, the washer prevents the sleeve
and bolt from being pulled. The sleeve I.D. provides an
adjustment allowance around the bolt. A lug is generally
welded on the bolt to prevent rotation when tightening.
Anchor bolts should be located in the concrete by a
template dimensioned from the pump installation drawing.
The top of the sleeve should be temporarily sealed with
waste material to prevent concrete from entering during the
concrete pouring operation. A typical anchor bolt
arrangement is shown in Figure W1.

INSTALLING PUMP ON
FOUNDATION

If subbases or floorplates were directly anchored to poured
concrete foundations, surface irregularities would cause
distortion. Rectangular metal blocks and shims, or metal
wedges having a small taper, are placed beside each anchor
bolt to level the subbase or floorplate (see Fig. W2 and Fig.
W3 on the following page). The anchor bolts are then
drawn tight enough to maintain position and level.

To secure the shims in place and provide a level surface for
the base or plate, grout is poured over the concrete
foundation. A ¾" to 1-½" grout allowance is recommended.
When subbases have cavities, grout holes are provided to
fill all spaces. After the grout has hardened, permanently
tighten the anchor bolts.

14 JC IOM 5/08

When the grout has hardened and the anchor bolts are
permanently secured, recheck level.

NOTE: On large subbases/floorplates, shimming is
recommended to be at 24" spacing.

PUMP-DRIVER ALIGNMENT

Alignment procedures must be followed to prevent

!

unintended contact of rotating parts. Follow
coupling manufacturer’s installation and operation
procedures.

3

spaced around the coupling. The unit will be in angular
alignment when the measurements show that the coupling
faces are the same distance apart at all points (Fig. W7).

SHAFT ALIGNMENT OF
HORIZONTALPUMP AND DRIVER

Pumps and drivers that are received from the factory with
both machines mounted on a common subbase were
accurately aligned before shipment. Because all subbases
are, to some extent, flexible, factory alignment may be
altered during shipment and handling. After the subbase
has been leveled, grouted, and secured, check the
alignment. Alignment should be rechecked after the pump
is fully installed and before startup. Refer to the Alignment
Procedure.

Disconnect coupling halves before proceeding with
alignment. Check for angular and parallel alignment in the
Alignment Procedure. The faces and outside diameters of
the coupling halves must be square and concentric with the
bores. If this condition does not exist, the Alternate Method
of Alignment is recommended.

Subbase mounted horizontal pumps may be shipped with or
without drivers and gears. Be sure pump and drivers are
uncoupled before installation. Level by shimming beside
each anchor bolt and grout as described in Installing Pump
on Foundation.

ALIGNMENT PROCEDURE

A check for angular alignment is made by inserting the taper
gauge or feelers at four points between the coupling faces
and comparing the distance between the faces at four points

A check for parallel alignment is made by placing a straight
edge across both coupling rims at the top, bottom, and at
both sides. The unit will be in parallel alignment when the
straight edge rests evenly on the coupling rim at all
positions. Allowance may be necessary for temperature
changes and for coupling halves that are not of the same
outside diameter.

NOTE: Care must be taken to have the straight edge
parallel to the axis of the shafts (Fig. W8).

JC IOM 5/08

15

Angular and parallel misalignment are corrected by means
of shims under the motor mounting feet. After each change,
it is necessary to recheck the alignment of the coupling
halves. Adjustment in one direction may disturb
adjustments already made in another direction. It should not
be necessary to adjust the shims under the pump.
The permissible amount of misalignment will vary with the
type of pump and driver. The manufacturer’s recommenda­tions should be obtained and followed.

With this method, accurate alignment of shaft centers can
be obtained even where faces or outside diameters of the
coupling halves are not square or concentric with the bores,
provided all measurements for angular alignment are made
between the same two points on the faces, and all
measurements for parallel alignment are made between the
same two points on the outside diameters. Gross deviations
in squareness or concentricity, however, may cause
problems due to coupling unbalance or abnormal coupling
wear and may need to be corrected for reasons other than
accomplishment of shaft alignment.

ALIGNMENT OF GEAR TYPE
COUPLINGS

Gear type couplings are aligned in the same manner as
outlined above. However, the coupling covers must be
moved back out of the way and measurements made on the
coupling hubs as shown on Fig. W9.

When the driver is to be mounted on the subbase in the
field, it is necessary to place the subbase with pump on the
foundation to level the pump shaft, to check the coupling
faces, the suction and discharge flanges for horizontal or
vertical position, and to make any necessary corrective
adjustments.

When the units are lined up cold, it may be necessary to
make an allowance for the vertical rise of the driver and/or
pump caused by heating. Goulds Pumps recommendations
should be obtained and followed.

ALTERNATE METHOD OF
ALIGNMENT

An approved method for putting the coupling halves in final
accurate alignment is by the use of a dial indicator. Check
alignment by straight edge, taper gauge or feelers as
accurately as possible by the procedure indicated above.

Bolt the indicator to the pump half of the coupling, with the
indicator button resting on the other half coupling peri­phery, set the dial to zero, and chalk mark the coupling half
at the point where the button rests. For any check, top,
bottom, or sides, rotate both shafts by the same amount;
i.e., all readings on the dial must be made with button on
the chalk mark.

FACTORS THAT MAY DISTURB
ALIGNMENT

The unit should be checked periodically for alignment. If
the unit does not stay in line after being properly installed,
the following are possible causes:

l

Settling, seasoning or spring of the foundation.

l

Wear of the bearings.

l

Pipe strains distorting or shifting the machine.

l

Springing of the baseplate by heat from an adjacent
steam pipe or from a steam turbine.

l

Shifting of the building structure due to variable loading
or other causes.

l

The readings will indicate whether the driver has to be

Loose nuts or bolts on the pump or driver assembly.

raised or lowered or moved to either side. After each
movement, check to see that coupling faces remain parallel
to one another.

16 JC IOM 5/08

OPERATION

PREPARATION FOR START-UP ..........................17

PUMP START-UP ...................................18

LOCATING PROBLEMS ...............................20

PREPARATION FOR START-UP

STUFFING BOXES

In the conventional stuffing box, mechanical seals and
packing seal between the stationary and rotating
components of the pump. Generally, a clear liquid such as
water is forced through the stuffing box to lubricate the
sealing elements. The lubricating liquid pressure must
exceed the pressure of the pumpage at the stuffing box. For
end suction pumps, lubricating liquid pressure should be
10-15 PSIG higher than the discharge pressure. For side
and double suction pumps, lubricating liquid pressure
should be 10-15 PSIG higher than the suction pressure.

NOTE: To determine suction or discharge pressure,
use gauge pressure only.

4

The piping supplying the lubrication liquid should be fitted
tightly to prevent air from entering. On suction lifts, a small
quantity of air entering the pump at this point may result in
loss of suction.

Lubrication liquid pressure is controlled by a valve on the
outlet piping. Since the liquid leaking from the stuffing box
should be clear, control of the packing lubricant will vary
with the condition of the packing. Increase pressure within
the stuffing box by closing outlet valve. Adjustments
should be slow and consistent with the run-in procedure for
new packing.

The lubricating liquid must be clean, free of grit and acid.
Shaft sleeve scoring, packing destruction, and mechanical
seal face damage will result from contaminated lubricant.

PACKING

Packed stuffing boxes are not allowed in an ATEX

!

classified environment.

Original equipment packing is a suitable grade for the
service intended. To replace original packing, contact your
local Goulds representative.

Refer to Bill of Material and Assembly Drawing for
specific packing size and configuration.

PACKING PROCEDURE

1. Stuffing box and shaft sleeve must be clean and free of
grit.

2. Form packing over shaft or mandrel of same diameter.
Carefully cut to packing length. Discard rings cut too
short.

3. Pre-form each ring by coiling 1-½ turns.

4. To install packing rings, do not pull straight. Expand
the coil as a coil spring. (See Fig. W13.)

JC IOM 5/08

17

5. Expand first coil as shown and insert into stuffing box.
Tamp packing to stuffing box shoulder firmly with the
gland. Note where the cut is positioned.

6. Install second and third coils as required by assembly
drawing, staggering the cut 90º-120º.

7. Insert seal cage (lantern ring) into stuffing box,
carefully noting its proper position on assembly
drawing. Failure to properly locate seal cage will result
in insufficient packing lubrication. Packing and shaft
sleeve damage will occur.

8. After packing and seal cage are properly installed,
insert gland into stuffing box. Tighten gland nuts
finger-tight only. Shaft should turn freely.

NOTE: Do not over tighten gland nuts. Packing may
set permanently and require removal. Over tightened
packing causes excessive friction between packing and
sleeve, and will result in damaged components. A
noticeable temperature increase in stuffing box would
indicate insufficient lubrication.

9. Follow pump start-up procedure. Turn on stuffing box
lubricating liquid and start pump.

10. A significant amount of lubricating liquid should leak
from gland side of stuffing box. Operate pump for at
least 15 minutes before tightening gland nuts. Make
small, even gland nut adjustments to reduce leakage.
Allow adequate run-in time between adjustments.
Acceptable leakage is 30-50 drops per minute.

11. Periodic maintenance is absolutely required for all
packed pumps.

Normal shaft run-out should be under .005" to avoid
pounding of stuffing box packing. With excessive shaft
run-out, shaft straightening or replacement is necessary.

MECHANICAL SEALS

The mechanical seal used in an ATEX classified

!

environment must be properly certified.

The mechanical seal must have an appropriate seal

!

flush system. Failure to do so will result in excess
heat generation and seal failure.

Most mechanical seals are installed and adjusted at the
factory. Due to size and design, some installed mechanical
seals are supplied with shipping retainers. Shipping
retainers hold the sealing faces apart to avoid damage
during transport. Shipping retainers must be removed
before shaft is to be rotated. Pumps with retained seal faces
will be specially marked and instructions from the seal
manufacturer for retainer removal will be provided.
Mechanical seals have a stationary and a rotating sealing
face. Commonly, these sealing rings are of carbon and
ceramic material, brittle in nature, and easily damaged. As
the sealing rings seat with the operation of the pump, a
compatible wear pattern develops between the mating
surfaces. To disassemble the mechanical seal after the wear
pattern is established would necessitate the replacement of
the rotating and stationary sealing elements. Do not replace
only one component.

To insure the life and sealing characteristics of the
mechanical seal, lubricating liquid must be circulated
through the stuffing box. Clear, grit free liquid is
necessary.

Special seal information and replacement seal elements
should be provided by the seal manufacturer. Goulds
strongly recommends the stocking of replacement sealing
elements.

$

Do not make shaft adjustments on mechanical seal
installations without consulting seal instructions and
pump assembly drawing.

CAUTION

PUMP START-UP

Service temperature in an ATEX classified

!

environment is limited to the area classification
specified on the ATEX tag affixed to the pump
(reference Table 1 in the ATEX identification
section).

The coupling used in an ATEX classified

!

environment must be properly certified.

18 JC IOM 5/08

The coupling guard used in an ATEX classified

!

environment must be constructed from a non­sparking material.

START-UP PRECAUTIONS

1. All equipment and personal safety related devices and
controls must be installed and operating properly.

2. To prevent premature pump failure at initial start up
due to dirt or debris in the pipe system, ensure the
system has been adequately cleaned and flushed.

3. Variable speed drivers should be brought to rated
speed as quickly as possible

4. Variable speed drivers should not be adjusted or
checked for speed governor or over speed trip settings
while coupled to the pump at initial start up. If settings
have not been verified, uncouple the unit and refer to
driver manufacturer's instructions for assistance.

Pumpage temperatures in excess of 200°F will require
warmup of pump prior to operation. Circulate a small
amount of pumpage through the pump until the casing
temperature is within 100°F of the pumpage temperature
and evenly heated.

LUBRICATING LINES TO STUFFING
BOX

Lubricating liquid must be flowing to the stuffing box
before the pump is started. Both mechanical seals and
packing require lubrication for continuous service.

PRIMING

The pump must be completely primed before operation.

Pumps must be fully primed at all times during

!

operation.

$

When starting the pump, immediately observe pressure
gauges. If discharge pressure is not quickly attained,
stop driver, reprime and attempt to restart.

CAUTION

BEARING LUBRICATION

Bearings must have adequate lubrication. Engage external
lubrication system. Consult “BEARING SECTION” of
these instructions for specific information.

SHAFT ROTATION

The pump shaft must turn without any binding or rubbing.
By manually turning the rotating element, only the uniform
frictional drag of the bearings and the stuffing box should
be sensed.

$

Serious damage may result if the pump is run in the
wrong direction

CAUTION

CORRECT ROTATION OF THE
DRIVER

The direction of rotation of the driver must be checked
before it can be coupled with the pump. The direction of
rotation of the pump is indicated in a prominent location.
For pumps with impellers threaded on the shaft, reverse
rotation would back the shaft from the impeller thread.
Considerable damage may occur.

WATER HAMMER

Water hammer is a high pressure surge within a closed pipe
system, created by rapid change in the flow rate. Changes
in the flow rate occur when there are sudden changes in
pump speed. The most common cause is the sudden
opening or closing of a valve or flow control device.
Extensive damage to the pump and pipeline is a result of
water hammer.

FREEZING

If the pump is exposed to below freezing temperatures, the
liquid should be drained during idle periods.

Lock out driver power to prevent electric shock,

"

accidental start-up and physical injury.

When installing in a potentially explosive

!

environment, ensure that the motor is properly
certified.

JC IOM 5/08

19

LOCATING PROBLEMS

CONDITIONS LEADING TO
INSUFFICIENT OR NO DISCHARGE

Insufficient speed.

l

Excessive discharge head

l

Insufficient NPSH.

l

Worn pump components

l

Incorrect direction of rotation

l

Incomplete pump priming

l

Impeller or discharge pipe clogged

l

Pumpage viscosity too high

l

CONDITIONS LEADING TO
EXCESSIVE POWER
CONSUMPTION

Excessive speed.

l

Pump operating at high horsepower area of the pump

l

curve (off design point)

Mechanical binding or rubbing of rotating element.

l

l

Pumpage specific gravity and/or viscosity too high

$

Damage occurs from:

Increased vibration levels – affects bearings, stuffing

•

box or seal chamber and mechanical seal

Increased radial loads – Stresses on shaft and bearings

•

Heat build up–Vaporization causing rotating parts to

•

score or seize

Cavitation–Damage to internal surfaces of pump

•

$

Observe pump for vibration levels, bearing temperature
and excessive noise. If normal levels are exceeded, shut
down and resolve.

! WARNING!

s

This unit must never be used without prior installation
of the safety guards for rotating parts as prescribed by
O.S.H.A.

Operation of this pump with both suction and
discharge valves closed for even brief periods of time is
an unacceptable and dangerous practice. it can rapidly
lead to a violent pump failure.

CAUTION

CAUTION

$

Always vary capacity with regulating valve in the
discharge line. NEVER throttle flow from the suction
side

$

Driver may overload if the pumpage specific gravity
(density) is greater than originally assumed, or the
rated flow rate is exceeded

$

Always operate the pump at or near the rated
conditions to prevent damage resulting form cavitation
or recirculation

! WARNING

s

Do not operate pump below minimum rated flows or
with suction and/or discharge valve closed. These
conditions may create an explosive hazard due to
vaporization of pumpage and can quickly lead to pump
failure and physical injury.

CAUTION

CAUTION

CAUTION

! WARNING!

s

Inspection intervals should be shortened appropriately
if the pumpage is abrasive and/or corrosive, or if the
environment is classified as potentially explosive.

! WARNING!

s

DO NOT apply heat to hub or nose of threaded
impeller. There is a danger of explosion.

20 JC IOM 5/08

PREVENTIVE MAINTENANCE

GENERAL COMMENTS ...............................21

MAINTENANCE SCHEDULE ............................21

LIQUID END ......................................22

POWER END......................................23

IMPELLER CLEARANCES .............................23

MAINTENANCE OF BEARINGS ..........................24

GENERAL COMMENTS

A routine maintenance program can extend the life of your pump. Well maintenanced equipment will last longer and
require fewer repairs. It is recommended maintenance records be kept – this will help pinpoint potential causes of
problems.

The Preventive Maintenance section must be adhered to in order to keep the applicable ATEX classification of the
equipment. Failure to follow these procedures will void the ATEX classification for the equipment.

MAINTENANCE SCHEDULE

5

Routine Maintenance

Bearing lubrication

•

Seal Monitoring

•

Vibration analysis

•

Discharge pressure

•

Temperature monitoring

•

Routine Inspections

Check level and condition of oil through sight glass

•

on bearing housing.

Check for unusual noise, vibration and bearing

•

temperatures.

Inspect pump and piping for leaks.

•

Check stuffing box leakage.

•

Packing: Excessive leakage requires adjustment or

•

possible packing replacement.

Mechanical Seal: Should be no leakage.

•

Quarterly Inspections

Check foundation and hold-down bolts for tightness.

•

If pump has been left idle, check packing. Replace if

•

required.

Oil should be changed at least every 3 months or

•

more often if there are any adverse atmospheric
conditions or other conditions which might
contaminate or break down the oil.

JC IOM 5/08

21

LIQUID END

TO DISASSEMBLE THE LIQUID
END

1. Drain pumpage from pump and pipe line. Disconnect
auxiliary lubrication lines, suction and discharge pipe
line connections. Uncouple pump from driver.

! WARNING

s

When handling hazardous and/or toxic fluids, proper
personal protective equipment should be worn. If pump
is being drained, precautions must be taken to prevent
physical injury. Pumpage must be handled and
disposed of in conformance with applicable
environment regulations.

2. Remove cap screws or bolts which fasten suction disc
(182)to casing (100).

3. Remove suction disc (182) and suction disc liner
(100B) from casing fit.

4. Impeller (101) is threaded onto shaft (122). Remove
impeller by restraining coupling end of shaft and
turning impeller in the operating direction of rotation.
Do not apply heat.

NOTE: If impeller is frozen on shaft, restrain the impeller,
attach a spanner wrench to coupling end of shaft, and give
the wrench a sharp blow.

! WARNING!

s

DO NOT apply heat to hub or nose of threaded
impeller. There is a danger of explosion.

5. Remove cap screws or bolts which fasten casing (100)
to hub disc (184). Slide casing from hub disc fit.

3. Position casing (100) with gasket into hub disc (184)
fit. Be sure discharge is in proper orientation. Fasten
casing to hub disc with cap screws (370J).

4. Install impeller (101) with gasket onto shaft (100)
Drawing impeller tight on shaft threads firmly secures
shaft sleeve. Seal sleeve to impeller with RTV silicone.

5. Place suction disc liner (100B) into casing fit. With
O-ring (412F) in position on liner O.D., install suction
disc (182). Fasten suction disc to casing with cap
screws (370E).

6. Set impeller clearance according to section Impeller
Clearance in the bearing section of this manual.

Improper impeller adjustment could cause contact

!

between the rotating and stationary parts, resulting
in a spark and heat generation.

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.

7. Install packing (106), seal cage (105) and gland (107).
Refer to assembly drawing for proper packing
sequence and to section Stuffing Boxes in the General
Instructions.

8. Install pump half of coupling or sheave. Realign pump
and driver. Connect pump section and discharge to
pipe line. Connect auxiliary lubrication lines.

9. Start-up instructions.....Refer to General Instructions

6. Disassemble gland (107) from stuffing box.

7. Remove bolts which fasten hub disc (184) and bearing
frame (228). Carefully pull hub disc from shaft sleeve
(126). Packing (106) and seal cage (105) may be left in
stuffing box during disassembly of hub disc and
removed hub disc is separated from bearing assembly.

8. Pull or drive shaft sleeve (126) from shaft (100) if
replacement is necessary.

TO ASSEMBLE THE LIQUID END

1. Shaft (122) and shaft sleeve (126) must be clean and
free of burrs. Install sleeve (126) on shaft.

2. Carefully guide hub disc (184) stuffing box over
impeller end of shaft. Secure hub disc (184) to bearing
frame (228) with bolts (370C).

22 JC IOM 5/08

POWER END

“J ” TYPE BEARING

The “J” type bearing assembly uses medium-heavy ball
bearings. On the small size “J” bearings, double row ball
bearings are used for combined loading. The larger sizes
utilize separate radial and thrust ball bearings. Adjustment
of nose clearance can be easily accomplished without

bearing disassembly.

IMPELLER CLEARANCES

Improper impeller adjustment could cause contact

!

between the rotating and stationary parts, resulting
in a spark and heat generation.

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.

To maintain maximum operating efficiency, a uniform
1/64" - 1/32" clearance between the parallel surfaces of
suction disc liner (100B) and the nose of the impeller (101)
is necessary. The clearance is adjusted by moving shaft
(122) toward or away from suction disc liner (100B). There
are adjusting lugs cast on bearing frame (228) and thrust
bearing housing (134A). Studs (356A) threaded into thrust
bearing housing lugs fit through the slots of bearing frame
lugs. Jam nuts on studs, located on both sides of the frame
lugs, are used to adjust and fasten the thrust bearing
housing relative to the bearing frame.

METHODS TO DETERMINE
IMPELLER NOSE CLEARANCE

During Installation Or Repair

With a feeler gauge, measure the gap between the nose of
the impeller and the casing liner on the suction side.

During Normal Service

Move impeller toward suction side of casing liner until
parallel surfaces slightly rub. Measure “X” dimension and
add the recommended impeller nose clearance. Adjust
dimension “X” per “Impeller Clearance Adjustment

Procedure.”

Impeller Clearance Adjustment Procedure

1. Turn stud jam nuts at the bearing frame lugs to drive
the shaft assembly in the desired direction. Moving
shaft (122) toward suction side casing liner will
decrease the clearance

JC IOM 5/08

2. To decrease impeller clearance, loosen outboard jam
nut and drive the shaft assembly by turning the inboard
jam nut.

3. When desired clearance is reached, tighten outboard
jam nut securely. Check clearance after tightening.

4. To increase impeller clearance, loosen inboard jam nut
and drive the shaft assembly by turning the outboard
jam nut.

$

Jam nuts on both sides of bearing frame lugs must be
secure. Normal impeller thrust will tend to decrease the
impeller clearance. Impeller rubbing will result from
insufficient jam nut tightening.

CAUTION

23

Conditions Requiring Adjustments

1. Overheated thrust bearings may develop from uneven
adjustment of jam nuts. Check lubrication.

2. Noise, vibration and wear may result from the impeller
rubbing on the suction or hub side casing liners. Adjust

impeller clearance.

MAINTENANCE OF BEARINGS

3. Poor performance and wear may result from excessive
impeller clearance at the suction side casing liner.

NOTE: Lubricate adjusting studs (356A) for easy
maintenance.

BEARING LUBRICATION AND
CARE

Bearings must be lubricated properly in order to

!

prevent excess heat generation, sparks, and
premature failure.

The Preventive Maintenance section must be

!

adhered to in order to keep the applicable ATEX
classification of the equipment. Failure to follow
these procedures will void the ATEX classification
for the equipment.

Throughout this section on bearing lubrication,

!

different pumpage temperatures are listed. If the
equipment is ATEX certified and the listed
temperature exceeds the applicable value shown in
Table 1 under ATEX identification, then that
temperature is not valid. Should this situation occur,
please consult with your ITT/Goulds representative.

$

Operation of the unit without proper lubrication will

!

cause bearing failure, and pump seizure.

CAUTION

OIL LUBRICATION

When the pump is furnished with oil lubrication, a good
grade of oil should be used to insure long bearing life.

NOTE: Pumps furnished for oil lubrication are
shipped without oil. Add oil until the level is up to the
oil level line before the unit is started.

If too much oil is added, there will be excessive heat
generated in the bearings and there may be leakage from
the shaft seals. We recommend a commercial oil such as
Mobil D.T.E. oil, B.B., Tellus 41 or equal. However, a
good grade of #30 or #40 weight is satisfactory for normal
temperatures.

To 150ºF – SAE 20
To 160ºF – SAE 30
To 175ºF – SAE 40
To 200ºF – SAE 50

GREASE LUBRICATION

When the pump is furnished for grease lubrication, the
pump will be shipped with the bearings hand-packed with
Mobilux #2 grease, unless otherwise specified by the
customer. Other suitable greases are Humble Lidok #2,
Texaco Regal Starfak #2, and Shell Alvania #2. If another
brand is desired, it should be checked with the supplier to
determine if it is equivalent to the above.

Installing A Bearing

The bearings have sufficient grease for at least 24 hours of
operation after start-up. The bearings will run hotter than
normal for the first few hours until the grease is worked out
of the ball path and the bearings have “run in”. Adding
more grease during this period may increase the bearing
temperature.

After the first regreasing, a small amount of grease should
be added at each fitting every 500 hours of operation.

Normal Bearing Temperature

Long bearing life is quite dependent on careful handling of
a bearing when it is out of the housing and during the
installation procedure. Dirt and rough handling are prime
enemies of precision bearings. Bearings should be pressed,
not “hammered” into place. If heat is used to facilitate the
installation, a hot oil bath is the best method. Bearings for
grease lubrication should be hand-packed with grease to
insure adequate lubrication at start-up.

NOTE: The shaft seals above each bearing should be
oiled with a few drops of #30 oil before the pump is
started to insure lubrication of the seal lip.

For best results, the weight of the oil lubricant should be
adjusted for the normal operating temperature as follows:

24 JC IOM 5/08

The running temperature for a bearing assembly depends
on many factors such as speed, bearing loads, ambient air
temperature, and condition of bearings. Temperatures
higher than the human hand can tolerate are very
satisfactory for good bearing operation and should not
cause alarm.

For a given speed and loading, the bearing housing
temperature will stabilize at some temperature, usually
below 200º F, which will be the normal temperature for that
installation. Higher temperatures than this normal
temperature, without any change in speed or loading, can
mean a lubrication difficulty or the approach of a bearing
failure.

1. Pull pump coupling half or sheave from drive end of
shaft.

2. Remove radial bearing slinger (123C) from shaft.

3. Remove jam nuts from adjusting studs (356A) which
fasten bearing frame (228) and thrust bearing housing
(134A). Carefully pull the shaft (122), bearings, and
thrust bearing housing (134A) from the drive end of
bearing frame (228). Support both ends of the shaft

assembly to prevent seal and bearing damage.

4. Detach thrust bearing snap ring (361) from thrust
bearing housing (134A). Slide housing over thrust
bearing.

TO DISASSEMBLE THE “J”
BEARING

For the purpose of these instructions, assume the JC liquid
end has been disassembled, including suction disc (182),
suction disc liner (100B), impeller (101), casing (100), hub
disc (184), stuffing box components, and shaft sleeve
(126).

JC IOM 5/08

NOTE: See illustrations for specific thrust bearing
configuration.

5. Remove thrust bearing locknut (136) and lockwasher
(382).

6. Press or pull radial bearing (168C) from shaft (122).
Apply pulling force to inside bearing race only.

25

7. Press or pull thrust bearing arrangement from shaft
(122). For double row ball thrust bearing (112C), apply
pulling force to inside race only. For two-bearing
thrust arrangement, apply pulling force to inside race
of thrust bearing (112D). The thrust bearing (112D),
thrust bearing collar (237), and radial bearing (112C)
will be removed.

8. Do not remove radial bearing retainer (119B) from
bearing frame (228). A factory press fit insures a
permanent installation.

TO ASSEMBLE THE “J” BEARING

1. The shaft (122), thrust bearing housing (134A) and
bearings must be clean and free of burrs.

2. To assemble thrust bearing arrangement:

a. Double row ball thrust bearing: (1J-4J)

1) Heat thrust bearing (112C) in 180º F oil
bath.

2) Slide thrust bearing (112C) onto shaft (122)
firmly against shaft shoulder.

3) Install lockwasher (382) and locknut (136)
before bearing cools. When bearing cools to
room temperature, retighten locknut and

secure lockwasher tang.

b. Separate thrust (112C) and radial (112D) bearings

on thrust end (5J):

1) Heat thrust bearing (112D) in 180º F oil
bath and install on shaft (122) firmly

against shaft shoulder.

2) Heat thrust bearing collar (237) in oil bath
and install shaft against inner thrust bearing

inner race.

3 Heat radial bearing (112C) in oil bath and

install on shaft with inner race against
thrust collar (237).

4) Install lockwasher (382) and locknut (136)
before bearings cool. When bearings cool to
room temperature, retighten locknut and

secure with lockwasher tang.

3. To install thrust bearing housing (134A):
a. Double row ball thrust bearing:

1) Lubricate seal (332) and O-ring (496) on
thrust bearing housing (134A).

2) Carefully slide housing (134A) onto shaft
(122) over thrust bearing.

3 Secure housing (134A) with thrust bearing

snap ring (361).

b. Separate thrust (112D) and radial (112C) bearings

on thrust end:

1) Lubricate seal (332) and O-ring (496) on
thrust bearing housing.

2) Carefully slide housing (134A) onto shaft
and bearings until housing shoulder
bottoms on outer race of radial bearing

(112C).

3) Install thrust bearing snap ring (361) into
ring groove of housing.

4) With feeler gauge, measure clearance
between snap ring (361) and outer race of
thrust bearing (112D). The clearance

should be .004 - .010 at “G” gap.

5) From the feeler gauge measurement,
subtract .007”. The resulting dimension is

the thickness of shims (331) at “S” gap.

6) Remove snap ring. Pull housing (134A)
and install calculated shim pack (331)
against housing shoulder. Reinstall housing

and snap ring.

4. Heat radial bearing (168C) in 180º F oil bath. Slide
radial bearing onto shaft (122) firmly against shaft
shoulder. Allow bearing to cool to room temperature

before further assembly.

NOTE: Radial retainer permanently pressed into
bearing frame (228) at factory.

5. Lubricate seal 332 in radial bearing retainer (119B).
Carefully insert the shaft/bearing assembly into the

bearing frame (228) from the drive end. Guide the
threaded end of the shaft through seal (332) in retainer
(119B). As the thrust bearing housing (134A) enters
the bearing frame bore, align adjusting lugs on the

frame and housing.

6. Loosely install adjusting studs (356A) in adjusting
lugs. Do not tighten.

7. Install radial bearing slinger (123C).

26 JC IOM 5/08

SPARE PARTS

ORDERING SPARE PARTS .............................27

PARTS LIST ......................................28

JC SECTIONAL VIEW ................................29

ORDERING SPARE PARTS

To insure against possible long and costly downtime
periods, especially on critical services, it is advisable to
have spare parts on hand.

Parts Kit Chart

Parts orders will be handled most promptly if the following
directions are followed.

1. Include pump model and size and its serial number as
shown on the nameplate.

2. For each part required, include the name and part
number.

3. State the quantity required for each part.

4. Provide complete shipping instructions.

RECOMMENDED SPARES

The following are recommended spare parts.

l

1 Suction Liner (100B)

l

1 Impeller (101)

l

1 Lantern Ring (105)

l

5 Packing Rings (106)

l

1 Thrust Bearing (112C)

l

1 Shaft Sleeve (126)

l

1 Radial Bearing (168C)

Pump Size Kit Number

1×1.5-8, 1.5×2-8, 2×3-8 520101

1×1.5-11, 1.5×2-11, 2×3-11 520102

1.5×2-14, 2×3-14 520103

3×4-11 520104

3×4-14, 4×6-14 520105

6×6-14 HS 520106

6×6-14 LS 520107

8×10-18 520108

10×12-22 520109

Parts Kits include thrust bearing locknut, lockwasher and
snap ring, grease seals, and required gaskets and/or
O-rings.

6

l

1 Parts Kit, see chart

JC IOM 5/08

27

PARTS LIST

TYPICAL

Item QTY/Pump Part Name Alternate Part Name

100 1

100B

101 1(2)

105

106 5

107 1

112C 1

119B 1

122 1

123C

126 1(2)

134A 1

136 1

168C 1

182 1

184 1

193B 2

222 1

228 1

332 3

351 1(1)

353 2

355 2

356A 2

361 1

370C 4

370E 8

370J 8

382 1

400 1

408 1

412F 1

415 4

496 1

528J 2

528K 8

528L 8

528P 4

1

1 Lantern Ring Seal Cage

Casing

Suction Liner Suction Disc Liner

Impeller

Packing Ring

Gland

Thrust Bearing

End Cover Bearing Retainer

Shaft

Deflector Slinger

Shaft Sleeve

Bearing Housing

Locknut

Radial Bearing

Suction Cover Suction Disc

Stuffing Box Cover Hub Disc

Grease Fitting

Set Screw

Bearing Frame

Grease Seal

Gasket

Stud, Gland

Hex Nut

Stud

Snap Ring

H Cap Screw

H Cap Screw

H Cap Screw

Lockwasher

Key

Pipe Plug

O-Ring

Hex Jam Nut

O-Ring

Washer, 353

Washer, 370E

Washer, 370j

Washer, 356A

®

NOTES:
(1) Buna-N O-Ring 496A replaces gasket 351 on sizes 6x6-14 and 8x10-18.
(2) Sleeve 126 is sealed to impeller 101 with RTV silicone.

All Sizes Except 10x12-22 Grease Lube Bearings.

28 JC IOM 5/08

JC SECTIONAL VIEW

JC IOM 5/08 29

This page intentionally left blank.

30 JC IOM 5/08

APPENDIX

SPECIAL INSTRUCTIONS

A) KAOLIN SERVICE -KJC PUMPS

OPTIMUM IMPELLER RUNNING
CLEARANCE

The optimum impeller running clearance is the minimum
clearance that will not significantly increase the input
horsepower from the shear rate induced drag at the suction
disc liner. For most liquids or slurries, the optimum
performance of the JC pump is achieved with the impeller
almost rubbing against the suction disc. Increasing this
clearance causes more internal leakage around the impeller
vanes, which results in decreased performance.

When pumping kaolin clay, the decrease in pump head
from the internal leakage can be more than offset by the
decrease in horsepower such that the overall performance is
increased. The optimum clearance is set by adjusting the
pump, when it is running, using a discharge pressure gauge
and ammeter to monitor the results.

During an adjustment to reduce the clearance, the clearance
has become too small when the percentage increase in
motor amperes exceeds the percentage increase in
discharge pressure. The opposite is true when increasing
the clearance. The adjustment can be made without a
pressure gauge, but it will be less accurate though perhaps
satisfactory for the application.

If the slurry percentage solids varies frequently, it may be
more practical to adjust the clearance for the most difficult
to pump slurry and not change it for the other
concentration.

B) EXPELLER

seal the casing when the unit is shut-down or running at
restricted flows.

! WARNING!

s

IMPORTANT: BEFORE PERFORMING ANY
WORK, INSURE ELECTRICAL SUPPLY IS
LOCKED OUT.

Clearance Adjustment

The impeller clearance in the JC pump with optional
expeller should be maintained at .015² from the face of the
impeller (101) to the suction cover liner (100B). Adjust this
clearance as often as necessary in order to maintain
efficient pump performance.

IMPORTANT: INSURE THAT THE IMPELLER IS
TIGHTENED ON THE SHAFT PRIOR TO
CLEARANCE ADJUSTMENT.

To Disassemble The Liquid End

1. Remove bolts (370E) that fasten the suction cover 182 to
the casing (100). Remove the O-Ring (412F) and the
suction cover liner (100B). A gentle tap about the
circumference of the liner may facilitate removal of the

liner.

2. Remove the impeller (101) by securing it with a
wooden or soft metal block and turn the shaft in the
counter-clockwise direction facing the pump drive end
from the motor. The reverse of this procedure is also
possible. By securing the shaft, strike the impeller in
the counter-clockwise direction using a lead or
composite mallet.

7

General

Dynamic seals are not allowed in an ATEX

!

classified environment.

To meet the high demand for waterless sealing of stuffing
boxes in slurry pumps, Ashland Operations/Goulds has
added an expeller to the JC line. Using its basic bearing and
wetted end configuration, the JC now incorporates a hub
disc that has been enlarged to allow for the expeller option.

When operating at normal design conditions, the expeller
reduces the pressure usually present in conventional end
suction pump stuffing boxes to zero (0). Theoretically, the
only need for a packed stuffing box in expeller pumps is to

JC IOM 5/08

! WARNING!

s

DO NOT APPLY HEAT TO THE IMPELLER.

3. Remove the casing (100), expeller (262) and hub disc
(expeller housing) (184) as one unit by only removing
bolts (370C) that fasten this assembly to the bearing
frame. Leave the packing and seal cage in the stuffing
box to protect the sleeve and carefully slide the whole
unit until it is clear of the shaft.

4. Remove bolts (370J) to expose the expeller for
inspection.

To Assemble The Wetted End

31

1. Assemble the casing (100), expeller (262) and hub disc
(184) using bolts (370J) prior to installation on the
bearing frame.

2. Insert the shaft sleeve into the packed stuffing box so it
engages with the recess in the expeller. This will act as
a guide and center the expeller until the impeller can
be installed.

3. Prior to sleeve installation on the shaft, apply a bead of
silastic or silicon sealant on the expeller hub faces to
seal the rotor assembly.

4. Carefully slide the whole assembly on to the shaft
using the sleeve as a guide until the hub disc is aligned
with the fit and bolt holes in the bearing frame.

5. Secure with bolts (370C).

6. Install the impeller by turning it in the clockwise
direction taking care to tighten it against the expeller
and shaft sleeve prior to clearance adjustment. Apply
anti-seize or grease to threads of shaft to make future
removal easier.

7. Replace the suction cover liner after applying a liberal
amount of anti-seize compound or grease on the outer
shoulder. This will also make removal easier in the
future.

8. Install O-Ring (412F).0

9. Replace suction end cover (182) with bolts (370E).
Only apply a moderate torque to tighten.

10. Check impeller clearance.

Lubrication

To lubricate the seals and purge the stuffing box, use a
general purpose waterproof grease. Several shots of grease
should be added to the stuffing box, as little as every three
operating days or as much as every four operating hours,
depending upon the severity of the pumpage abrasiveness.
In addition, grease should be added prior to every tenth
start-up.

32 JC IOM 5/08

HOW TO ORDER

When ordering parts call

1-800-446-8537

or your local Goulds Representative

EMERGENCY SERVICE

Emergency parts service is available

24 hours/day, 365 days/year …

Call 1-800-446-8537

Visit our website at www.gouldspumps.com

Form No. IJC Rev. 5/08

© Copyright 2006 Goulds Pumps, Incorporated

a subsidiary of ITT Corporation.