ITT Goulds Pumps 3298 Series Manual

3298 Family
Installation, Operation and Maintenance Instructions
3298
Frame Mounted
3298
Close Coupled
V 3298
SP 3298
Close Coupled

Pump Safety Tips
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, especially in machine
shop areas
·Steel-toed shoes for foot protection when
handling parts, heavy tools, etc.
·Other personal protective equipment to protect against
hazardous/toxic fluids
Coupling Guards:
·Never operate a pump without a coupling guard properly
installed
Flanged Connections:
·Never force piping to make a connection with a pump
·Use only fasteners of the proper size and material
·Ensure there are no missing fasteners
·Beware of corroded or loose fasteners
Operation:
Do not operate below minimum rated flow, or with
suction/discharge valves closed
Do not open vent or drain valves, or remove plugs while
system is pressurized
Maintenance Safety:
·Always lockout power
·Ensure pump is isolated from system and pressure is
relieved before disassembling pump, removing plugs, or
disconnecting piping
·Use proper lifting and supporting equipment to prevent
serious injury
·Observe proper decontamination procedures
·Know and follow company safety regulations
·Never apply heat to remove impeller
·Observe all cautions and warnings highlighted in pump
Installation, Operation and Maintenance Instructions.

IMPORTANT SAFETY REMINDER
To: Our Valued Customers
Goulds' pumps will provide safe, trouble-free service when properly installed, maintained, and operated. We have an
extensive network of experienced sales and service professionals to assist in maximizing your satisfaction with our products.
Safe installation, operation, and maintenance of Goulds' equipment are an essential end user responsibility. This Instruction,
Operation, and Maintenance (IOM) 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 person- nel, 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.
Specific to pumping equipment, two significant risks bear reinforcement above and beyond normal safety precautions.
▲
!WARNING
1Operation 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
2Pumping 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.
Please take the time to review and understand the safe installation, operation, and maintenance guidelines outlined in this
manual.

FOREWORD
This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Model
3298 family of Magnetic Drive Process Pumps. This manual must be read and understood before
installation and start-up.
The design, materials, and workmanship incorporated in the construction of Goulds pumps makes them
capable of giving trouble-free service. The life and satisfactory service of any mechanical unit, however,
is enhanced and extended by correct application, proper installation, periodic inspection, condition
monitoring and careful maintenance. This instruction manual was prepared to assist operators in
understanding the construction and the correct methods of installing, operating, and maintaining these
pumps.
ITT Industries - Goulds shall not be liable for physical injury, damage or delays caused by a failure to
observe the instructions for Installation, Operation, and Maintenance contained in this manual.
Warranty is valid only when genuine ITT Industries - Goulds Pumps parts are used.
Use of the equipment on a service other than stated in the order could nullify the warranty, unless
written approval is obtained in advance from ITT Industries, Goulds Pumps.
Supervision by an authorized ITT Industries - Goulds representative is recommended to assure proper
installation.
Additional manuals can be obtained by contacting your local ITT Industries - Goulds representative, by
calling 1-800-446-8537, or visiting our website at www.gouldspumps.com.
THIS MANUAL EXPLAINS
nProper Installation
nStart-Up Procedures
nOperation Procedures
nRoutine Maintenance
nPump Overhaul
nTroubleshooting
nOrdering Spare or Repair Parts
43298 Family Rev. 4/07

3298 Family Rev. 4/07 5
2
4
7
5
6
8
TABLE OF CONTENTS
PAGE
7 SAFETY
11 GENERAL INFORMATION
15 INSTALLATION
27 OPERATION
33 PREVENTIVE MAINTENANCE
39 DISASSEMBLY & REASSEMBLY
113 SPARE AND REPAIR PARTS
125 APPENDICES
I Hydraulic Coverage Charts
II Coupling Guard Installation
III Impeller Trim Procedures
IV Power Monitors
V Reliability Tips for Operating Lined Magnetically-Driven
Sealless Pumps (Quick Reference Guide
VI Polyshield®ANSI Combo Installation, Operation and
Maintenance Instructions
SECTION
1
3

63298 Family Rev. 4/07

SAFETY
DEFINITIONS ................................7
MEDICAL PRECAUTIONS ........................8
GENERAL PRECAUTIONS ........................8
DEFINITIONS
These pumps have been designed for safe and reliable
operation when properly used and maintained in
accordance with instructions contained in this manual. A
pump is a pressure containing device with rotating parts
that can be hazardous. Operators and maintenance
personnel must realize this and follow safety measures.
ITT Industries Goulds Pumps shall not be liable for
physical injury, damage or delays caused by a failure to
observe the instructions in this manual.
Throughout this manual the words WARNING,
CAUTION,ELECTRICAL, ATEX, and NOTE are used
to indicate procedures or situations which require special
operator attention:
s
!WARNING
Operating procedure, practice, etc. which, if not
correctly followed, could result in personal injury or
loss of life.
$
! CAUTION
Operating procedure, practice, etc. which, if not
followed, could result in damage or destruction of
equipment.
"Particular care must be taken when electrical power
source to the equipment is energized.
!If equipment is to be installed in a potentially
explosive atmosphere and these procedures are not
followed, personal injury or equipment damage from
an explosion may result.
NOTE: Operating procedure, condition, etc. which is
essential to observe.
EXAMPLES
s
!WARNING
Pump shall never be operated without coupling guard
installed correctly.
$
! CAUTION
Throttling flow from the suction side may cause
cavitation and pump damage.
!Improper impeller adjustment could cause contact
between the rotating and stationary parts, resulting
in a spark and heat generation.
!Lock out driver power to prevent electric shock,
accidental start-up, and physical injury.
"Lock out driver power to prevent electric shock,
accidental start-up and physical injury.
NOTE: Proper alignment is essential for long pump life.
3298 Family Rev. 4/07 7
1

MEDICAL PRECAUTIONS
s
!WARNING
Magnetic drive pumps contain very strong magnets
which may pose health risks. The following guidelines
shall always be observed.
1. When disassembled and magnets are exposed,
individuals with artificial cardiac pacemakers,
implanted defibrillators, metallic prosthetic heart
valves, internal wound clips (from surgery), prosthetic
joints, metallic wiring, or other metallic prosthetic
devices shall avoid working with, being in proximity
of, or handling the magnets contained in the pumps.
2. When disassembled and magnets are exposed,
individuals who have had previous surgeries (especially
chest or head surgery) and who do not know if they have
metallic clips internally should avoid work on this unit
unless it can be established by his or her physician that no
risk exists while working on a magnet drive pump.
GENERAL PRECAUTIONS
s
!WARNING
Personal injuries will result if procedures outlined in
this manual are not followed.
CNEVER use heat to disassemble pump due to risk of
explosion from trapped liquid.
ACNEVER operate pump without coupling guard
correctly installed.
ADNEVER operate pump beyond the rated conditions
to which the pump was sold.
ADNEVER start pump without proper prime (all
models), or proper liquid level in self-priming
pumps (Model SP3298).
ACNEVER run pump below recommended minimum
flow or when dry.
CBALWAYS lock out power to the driver before
performing pump maintenance.
CNEVER operate pump without safety devices
installed.
ACNEVER operate pump with discharge valve closed.
ADNEVER operate pump with suction valve closed.
ACDO NOT change conditions of service without
approval of an authorized ITT-Goulds representative.
EXPLOSION PREVENTION
!In order to reduce the possibility of accidental explosions in atmospheres containing explosive gases and/or dust, the
instructions under the ATEX symbol must be closely followed. ATEX certification is a specification enforced in
Europe for non-electrical and electrical equipment installed in Europe. The usefulness of the ATEX requirements is
not limited to Europe. They are useful guidelines for equipment installed in any potentially explosive environment.
!NOTE: When pumping unit is installed in a potentially explosive atmosphere, the instructions after 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 a Goulds
representative before proceeding.
83298 Family Rev. 4/07

SPECIAL ATEX CONSIDERATIONS
All installation and operation instructions in this manual
must be strictly adhered to. In addition, care must be taken
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.
ATEX IDENTIFICATION
For a pumping unit (pump, seal, coupling, motor and pump
accessories) to be certified for use in an ATEX classified
environment, the proper ATEX identification must be
present.
The ATEX tag would be secured to the pump or the
baseplate on which it is mounted. A typical tag would look
like this:
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
Tx = Temperature class, can be T1 to T4
(see Table 1)
Table 1
Code
Max
permissible surface
temperature
oF( oC)
Max
permissible
liquid
temperature
oF( oC)
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
The code classification marked on the equipment should be
in accordance with the specified area where the equipment
will be installed. If it is not, please contact your
ITT/Goulds representative before proceeding.
INTENDED USE
The ATEX conformance is only applicable when the pump
unit is operated within its intended use. All instructions
within this manual must be followed at all times. Operat-
ing, installing or maintaining the pump unit in any way that
is not covered in this manual 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. If there is any question regarding
the intended use of the equipment, please contact an
ITT/Goulds representative before proceeding.
3298 Family Rev. 4/07 9
2

CONDITION MONITORING
!For additional safety precautions, and where noted
in this manual, condition monitoring devices should
be used. If applicable, devices should comply with
ATEX. This includes, but is not limited to:
uPressure gauges
uFlow meters
uLevel indicators
uMotor load readings
uTemperature detectors
uBearing monitors
uLeak detectors
uPumpSmart®control system
For assistance in selecting the proper instrumentation and
its use, please contact your ITT/Goulds representative.
10 3298 Family Rev. 4/07

GENERAL INFORMATION
PUMP DESCRIPTION ...........................11
NAMEPLATE INFORMATION .....................12
RECEIVING THE PUMP .........................13
Storage Requirements ..........................13
Handling .................................13
PUMP DESCRIPTION
The Model 3298 is a sealless close coupled or frame
mounted centrifugal pump with an enclosed impeller that is
driven by a synchronous magnetic coupling and meets
dimensional standards of ANSI B73.1. (The 1x112-5 is not
ANSI dimensional.)
The SP 3298 is a self-priming sealless close coupled or
frame mounted centrifugal pump with an enclosed impeller
that is driven by a synchronous magnetic coupling. The
pump and frame / adapter feet locations meet ANSI B73.1
dimensional standards.
The V 3298 is a vertical in-line sealless close coupled
centrifugal pump with an enclosed impeller that is driven
by a synchronous magnetic coupling and meets the
dimensional standards of ANSI B73.2.
Casing - The casings are one piece cast ductile iron lined
with 1/8" TEFZEL®1 and have ANSI class 150 flanges with
a TEFZEL®raised face. The 3298 and SP 3298 are end
suction, top centerline discharge and are self-venting. The
V 3298 is side suction, side discharge and is also
self-venting.
Impeller Magnet Assembly - The 3298 family utilizes a
one or two piece impeller magnet assembly. The magnet
ring is balanced to ISO 1940 G6.3 levels and is sealed
within the solid enclosed TEFZEL®impeller magnet
assembly.
Stationary Shaft - The impeller magnet assembly rotates
about a solid stationary silicon carbide shaft. The shaft is
supported at one end by the containment shell and the other
end by the TEFZEL®bearing spider.
Bearing Spider - The bearing spider constructed from
solid TEFZEL®houses one of the key silicon carbide thrust
bearings in the pump and supports the stationary shaft at
one end.
Rear Impeller Wear Ring - is standard on M and L group
size pumps and is not required on S group sizes. The wear
ring is pressed into the rear of the impeller assembly. The
wear ring reduces axial thrust in the M and L group size
pumps.
Magnetic Coupling - is a coaxial synchronous type using
rare earth magnets. This concept results in a compact
design and allows the impeller to turn at the same speed as
the motor, (i.e. there is no slip between the drive and driven
magnets.)
Magnets - Neodymium Iron (NdFe).
Containment Shell - isolates the pumped liquid from the
atmosphere. The containment shell construction is backed
with vinylester FRP.
Radial Bearings and Thrust Bearings - Goulds standard
bearing material is carbon with optional Pure Sintered
Alpha Grade Silicon Carbide or DryGuard™ Pure Sintered
Alpha Grade Silicon Carbide.
Standard Close Coupled Mounting - The drive magnet
assembly is keyed, set screwed and mounted directly to the
motor shaft. This arrangement eliminates the need to
perform pump/motor alignment.
Optional Power End 3- The standard configuration is cast
iron with flood oil lubricated ball bearings. Pure oil mist
systems are available as an option. For protection and
reliability of the bearings and the lubricant, a labyrinth seal
is provided. On the inboard side a lip seal is used to prevent
leakage of oil into the magnetic drive assembly.
3298 Family Rev. 4/07 11
2
1TEFLON®and TEFZEL®: Registered trademarks for fluoropolymer resins, films and fibers made by DuPont.
2The 1x112-5 is tangential discharge.
3Frame mounted power end not available on the V 3298.

NAMEPLATE INFORMATION
Every pump has two Goulds nameplates that provide
information about the pump. The tags are located on the
casing and bearing frame.
When ordering spare parts, you will need to identify pump
model, size, serial number, and the item number of required
parts. Information can be taken from the pump casing tag.
Item numbers can be found in this manual
12 3298 Family Rev. 4/07
Description
Fig.
No. Example
Pump Casing Tag - provides information about
the pump’s hydraulic characteristics.
Note the format of the pump size:
Discharge x Suction - Nominal maximum
Impeller Diameter in inches
(Example: 2x3-8)
(Figs.1&2).
Fig. 1
English
Fig. 2
Metric
Bearing Frame Tag - provides information on
the lubrication system used (Fig. 3). Fig. 3
ATEX Tag - If applicable, your pump unit may
have the following ATEX tag affixed to the
pump and/or baseplate. See the Safety section for
a description of the symbols and codes (Fig. 4).
Fig. 4

RECEIVING THE PUMP
Inspect the pump as soon as it is received. Make notes of
damaged or missing items on the receipt and freight bill.
File any claims with the transportation company
immediately.
STORAGE REQUIREMENTS
Short Term - (Less than 3 months) Goulds normal
packaging procedure is designed to protect the pump
during shipping. Upon receipt store in a covered and dry
location.
Long Term - (More than 6 months) Preservative treatment
of bearings and machined surfaces will be required. Rotate
shaft several times every 3 months. Refer to driver and
coupling manuals for their long term storage procedures.
Store in a dry covered location.
HANDLING
s
!WARNING
Failure to properly lift and support equipment could
result in serious injury or damage to pumps.
Use care when moving pumps. Lifting equipment must be
able to adequately support the entire assembly. Hoist bare
pumps, using a sling under the suction flange and bearing
housing. (Fig. 5)
s
!WARNING
These pumps use ceramic silicon carbide components.
Do not drop pump or subject to shock loads, this may
damage internal ceramic components.
Baseplate mounted units are moved with slings under the
pump and driver. (Figs.5&7)
3298 Family Rev. 4/07 13
2
Fig. 5
Fig. 6
Fig. 7

Complete vertical pumps are lifted with straps under the
pump and motor (Fig. 8). Bare vertical pumps (without a
motor) are lifted with straps under the pump and motor
adapter (Fig. 9).
14 3298 Family Rev. 4/07
Fig. 8
Fig. 9

INSTALLATION
BASEPLATE INSPECTION........................15
SITE/FOUNDATION............................15
LEVEL BASEPLATE ...........................16
Cast Iron/Fabricated Steel ........................16
Feature Fabricated Steel/API Style....................17
Baseplate Leveling Worksheet ......................18
ALIGNMENT AND ALIGNMENT PROCEDURE ...........19
Alignment Checks ............................19
Alignment Criteria ............................19
SetUp...................................20
Measurement ...............................20
Angular Alignment ............................20
Parallel Alignment ............................21
Complete Alignment ...........................21
Alignment Troubleshooting .......................22
GROUT BASEPLATE ...........................22
PIPING....................................23
General ..................................23
Suction Piping ..............................23
Discharge Piping .............................25
Final Piping Check ............................25
!Equipment that is to be installed in a potentially explosive environment must be done so in accordance with the
following installation instructions.
BASEPLATE INSPECTION
1. Remove all equipment.
2. Completely clean the underside of baseplate. It is
sometimes necessary to coat the underside of the
baseplate with an epoxy. This may have been
purchased as an option.
3. Remove the rust preventative solution from the
machined pads with an appropriate solution.
SITE / FOUNDATION
A pump should be located near the supply of liquid and
have adequate space for operation, maintenance, and
inspection.
Baseplate mounted pumps are normally grouted to a
concrete foundation, which has been poured on a solid
footing. The foundation must be able to
absorb any vibration and to form a permanent, rigid
support for the pumping unit.
The location and size of the foundation bolts are shown on
the outline assembly drawing, provided with the pump data
package.
3298 Family Rev. 4/07 15
3

!All equipment being installed must be properly
grounded to prevent unexpected static electric
discharge. This includes ensuring that the PFA
lined pumps are pumping fluids that are conductive.
If not, a static electric discharge may occur when the
pump is drained and disassembled for maintenance
purposes.
Foundation bolts commonly used are sleeve type (Fig. 10)
and J type (Fig. 11). Both designs permit movement for
final bolt adjustment.
1. Inspect foundation for dust, dirt, oil, chips, water, etc.
and remove any contaminants. Do not use oil-based
cleaners as grout will not bond to it.
2. Prepare the foundation in accordance with the grout
manufacturer’s recommendations.
LEVEL BASEPLATE
CAST IRON / FABRICATED STEEL
1. Place two sets of wedges or shims on the foundation,
one set on each side of every foundation bolt
(Fig. 12, 13). The wedges should extend .75 in.
(20 mm) to 1.5 in. (40 mm) above the foundation, to
allow for adequate grouting. This will provide even
support for the baseplate once it is grouted.
2. Remove water and/or debris from anchor bolt
holes/sleeves. If the sleeve type bolts are being used,
fill the sleeves with rags to prevent grout from
entering.
3. Carefully lower baseplate onto foundation bolts.
4. Level baseplate to within .125 in.(3mm) over the length of
the base and .062 in. (1.5 mm) over the width of the base by
adjusting shims or wedges.
5. Hand tighten bolts.
16 3298 Family Rev. 4/07
Fig. 10
Fig. 11
Fig. 12
Fig. 13

FEATURE FABRICATED STEEL/
API STYLE
(BASEPLATES PROVIDED WITH VERTICAL
LEVELING ADJUSTORS)
1. Coat the jack screws with an anti-seizing compound to
allow for easy removal after the grout has been cured.
2. Cut round circular plates from bar stock to set the jack
screws on. The edges of the plates should be
chamfered to reduce stress concentrations.
3. Set the baseplate on the foundation and use the four
corner jack screws to raise the baseplate off the
foundation 0.75" to 1.5" (Fig. 14). The two center jack
screws should not be touching the foundation.
4. Place two machinist levels on the motor pads, one
lengthwise on a single motor pad, and another across the
ends of both motor pads (Fig 15).
NOTE: When using a machinist level, it is important
that the surface being leveled is free of all
contaminants, such as dust, to ensure an accurate
reading.
5. Level the motor pads as close to zero as possible, in
both directions, by adjusting the four jack screws.
6. Next, turn down the center jack screws so that they are
resting on their metal discs on the foundation.
7. Place the two levels on the pump pads, one lengthwise
on a single pump pad, and another across the middle of
both pump pads. (Fig. 16)
8. Level the pump pads as close to zero as possible, in
both directions, by adjusting the jack screws.
9. Install the anchor bolts until they are hand tight.
10. Return the levels to the motor pads and check the level
measurements.
11. Adjust the jack screws and anchor bolts, if necessary,
until all level measurements are within the design
requirements of 0.002 in./ft.
12. When taking readings, center the level over the pad
being measured.
NOTE: The Baseplate Leveling Worksheet provided
may be used when taking readings.
3298 Family Rev. 4/07 17
3
Fig. 14
Fig. 15
Fig. 16

BASEPLATE LEVELING WORKSHEET
LEVEL MEASUREMENTS
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
18 3298 Family Rev. 4/07

ALIGNMENT AND ALIGNMENT PROCEDURE
s
!WARNING
Before beginning any alignment procedure, make sure
driver power is locked out. Failure to lock out driver
power can result in serious personal injury.
!Alignment procedures must be followed to prevent
unintended contact of rotating parts. Follow
coupling manufacturer's coupling installation and
operation procedures.
To remove guard, refer to coupling guard assembly/
disassembly instructions.
The points at which alignment is checked and adjusted are:
·Initial Alignment is done prior to operation when
the pump and the driver are at ambient temperature.
·Final Alignment is done after operation when the
pump and driver are at operating temperature.
Alignment is achieved by adding or removing shims from
under the feet of the driver and shifting equipment
horizontally as needed.
NOTE: Proper alignment is the responsibility of the
installer of the unit.
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 Grouting Baseplate - To ensure alignment can be
obtained.
·After Grouting Baseplate - To ensure no changes to
alignment have occurred during grouting process.
·After Connecting Piping - To ensure that pipe strains
haven’t altered alignment. If changes have occurred,
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 temperature.
Thereafter, alignment should be checked periodically in
accordance with plant operating and maintenance
procedures.
NOTE: Alignment check must be made if process
temperature changes, piping changes, and/or pump
service is performed.
ALIGNMENT CRITERIA
Good alignment is achieved when the dial indicator
readings as specified in the alignment procedure are .002
in. (.05 mm) Total Indicated Reading (T.I.R.) or less when
the pump and driver are at operating temperature (Final
Alignment).
During the installation phase, however, it is necessary to
set the parallel alignment in the vertical direction to a
different criteria due to differences in expansion rates of
the pump and driver. Table 2 below shows recommended
cold settings for electric motor driven pumps based on
different pumpage temperatures. Driver manufacturers
should be consulted for recommended cold settings for
other types of drivers (steam turbines, engines, etc.).
Table 2
Cold Settings of Parallel
Vertical Alignment
Pumpage
Temperature Set Driver Shaft
50°F (10°C) .002in. (.05mm) LOW
150°F (65°C) .001in. (.03mm) HIGH
250°F (120°C) .005in. (.12mm) HIGH
3298 Family Rev. 4/07 19
3
B

SET UP
1. Mount two dial indicators on one of the coupling
halves (X) so they contact the other coupling half (Y)
(Fig. 17).
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
1. To ensure accuracy of indicator readings, always rotate
both coupling halves together so indicators 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 feet 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.
ANGULAR ALIGNMENT
A unit is in angular alignment when indicator A (Angular
indicator) does not vary by more that .002 in. (.05 mm) as
measured at four locations 90° apart.
Vertical Correction (Top to Bottom)
1. Zero indicator A at top dead center (12 o’clock) of
coupling half Y.
2. Rotate indicators to bottom dead center
(6 o’clock). Observe needle and record reading.
3. Negative Reading - The coupling halves are further
apart at the bottom than at the top. Correct by either
raising the driver feet at the shaft end (add shims) or
lowering the driver feet at the other end (remove
shims) (Fig. 18).
Positive Reading - The coupling halves are closer at
the bottom than at the top. Correct by either lowering
the driver feet at the shaft end (remove shims) or
raising the driver feet at the other end (add shims).
4. Repeat steps 1 through 3 until indicator A reads .002
in (.05 mm) or less.
Horizontal Correction (Side to Side)
1. Zero indicator A on left side of coupling half Y, 90°
from top dead center (9 o’clock).
2. Rotate indicators through top dead center to the right
side, 180° from the start (3 o’clock). Observe needle
and record reading.
3. Negative Reading - The coupling halves are further
apart on the right side than the left. Correct by either
sliding the shaft end of the driver to the left or the
other end to the right.
Positive Reading - The coupling halves are closer
together on the right side than the left. Correct by
either sliding the shaft end of the driver to the right or
the other end to the left (Fig. 19).
4. Repeat steps 1 through 3 until indicator A reads .002
in. (.05 mm) or less.
5. Re-check both horizontal and vertical readings to
ensure adjustment of one did not disturb the other.
Correct as necessary.
20 3298 Family Rev. 4/07
Fig. 17
Fig. 18
Fig. 19