Carver Pump RSV Series Manual

RVS - IN-LINE VERTICAL
MULTISTAGE FOR HIGH
PRESSURE APPLICATIONS
BEFORE 12/2016

RSV Series - In-Line Vertical Multi-Stage,
Ring Section Pump
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
This manual shall always be kept close to the unit’s location of operation or directly on the pump set.
Part Number: _______________________________________
Serial Numbers: _____________________________________
These operating instructions contain fundamental information and precautionary notes.
Please read the manual thoroughly prior to installation of unit, electrical connection and
commissioning. It is imperative to comply with all other operating instructions referring to
components of individual units.
DEC 2016
ATEX REV.0
Inch Units

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
SERVICE RECORD PAGE
Service No. ______________________Model _________________________ Size and Type _______________
Customer Order No. ____________________________Date Installed __________________________________
Installation Date
Location
Application
PUMP RATING
Capacity _____________________________________ Total Head ____________________________________
Suction Pressure ______________________________ Speed (RPM) __________________________________
Liquid pumped ________________________________ Temperature ___________________________________
Specific Gravity _______________________________ Viscosity ______________________________________
Serivce ______________________________________
PUMP MATERIALS
Casing _________________________ Impeller _______________________ Shaft _______________________
Gaskets _____________________________________ Bearing Frame _________________________________
Mechanical Seal/Packing ________________________
MOTOR DATA
Motor __________________________ Make _________________________ Serial No. ___________________
Type ___________________________ Frame ________________________ AC or DC ___________________
HP _____________________________ RPM _________________________ Volts _______________________
Phase __________________________ Cycles ________________________

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
NOTES ON INSPECTION AND REPAIRS
INSPECTION DATE
REPAIR TIME
REPAIRS
COST
REMARKS

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
TABLE OF CONTENTS
SECTION/PARAGRAPH PAGE
I. GENERAL DESCRIPTION AND SAFETY
PRECAUTIONS................................................1
A. General Information ...................................1
B. Disclaimer ..................................................1
C. Personnel Qualification and Training.........1
D. Pump Identification.....................................1
E. Parts Inventory Guide ................................1
F. Parts Ordering............................................1
G. Safety Precautions.....................................2
II. INSPECTION AND STORAGE ........................3
A. Inspection...................................................3
B. Storage of Pump........................................3
III. INSTALLATION................................................3
A. Location......................................................3
B. Handling.....................................................3
C. Coupling Alignment....................................3
D. Pre-Installation Procedures........................4
E. Piping .........................................................4
F. Auxiliary Piping Connections
and Gauges.............................................4
G. Motor..........................................................4
H. Direction of Rotation...................................4
SECTION/PARAGRAPH PAGE
IV. OPERATION .................................................... 5
A. Pre-start Cautions...................................... 5
B. Priming....................................................... 5
C. Starting the Pump...................................... 5
V. MAINTENANCE ............................................... 6
A. Lubrication of Motor................................... 6
B. Torque Values............................................ 6
VI. SERVICE AND REPAIR................................... 7
A. Motor Installation on Bare Pump ............... 7
B. Removing Motor from Complete Pump ..... 9
C. General Pump Maintenance and
Disassembly Instructions........................ 10
LIST OF TABLES
NUMBER TITLE PAGE
1. Minimum Pumping Rate............................. 5
2. Recommended Tie Rod
Torque Values (ft-lbs) ............................. 8
3. Recommended Coupling Bolt
Torque Values (ft-lbs) ............................. 6
4. RSV Model Specific Service and Repair ... 8

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RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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I. GENERAL DESCRIPTION AND
SAFETY PRECAUTIONS.
A. GENERAL INFORMATION. Carver RSV pumps
are vertical, multi-stage, centrifugal water pumps. If
properly installed, maintained, and operated, should
provide maintenance-free operation and a long service
life.
CAUTION
These instructions must always be kept close
to the product's operating location or directly
with the product.
This manual is designed to provide sufficient material to
properly maintain the total pumping unit. The information
presented should improve your knowledge and
understanding of the RSV, Multi-Stage Water Pump,
thus upgrading the reliability, service life, and quality of
pump maintenance.
These operating instructions do not take into account
local regulations; the operator must ensure that such
regulations are strictly observed by all, including the
personnel called in for installation. Compliance with
such laws relating to the proper installation and safe
operation of the pumping equipment is the responsibility
of the equipment owner and all necessary steps should
be taken by the owner to assure compliance with such
laws before operating the equipment. These instructions
are intended to facilitate familiarization with the product
and its permitted use to help satisfy safety requirements.
Always coordinate repair activity with operations
personnel, and follow all plant safety requirements and
applicable safety and health laws/regulations.
Refer to the appropriate sectional assembly for the
location of parts identified by item numbers. Variations
do exist between configurations, not all parts described
in the text may be on your configuration.
CAUTION
These instructions should be read prior to
installing, operating, using and maintaining the
equipment in any region worldwide and in
conjunction with the main user instructions
provided. The equipment must not be put into
service until all the conditions relating to safety
instructions have been met.
B. DISCLAIMER. Information in these User
Instructions is believed to be reliable. In spite of all the
efforts of Carver Pump Company to provide sound and
all necessary information the content of this manual may
appear insufficient and is not guaranteed by Carver
Pump Company as to its completeness or accuracy.
C. PERSONNEL QUALIFICATION AND TRAINING.
All personnel involved in the operation, installation,
inspection and maintenance of the unit must be qualified
to carry out the work involved. If the personnel in
question do not already possess the necessary
knowledge and skill, appropriate training and instruction
must be provided. If required the operator may
commission the manufacturer/supplier to provide
applicable training.
Follow instructions in this manual carefully. Factory
warranty applies only when pump operates under
conditions as specified on order acknowledgment, and if
pump is properly installed and maintained as
recommended herein. A copy of this manual should be
available to operating personnel. Additional copies of
this manual are available upon request from Carver
Pump Company and your local distributor. For
comments and/or questions about information provided,
please contact Carver Pump Company or your local
distributor.
D. PUMP IDENTIFICATION. The type of pump, pump
size, operating data, and serial number are all stamped
on the nameplate attached to the pump. Pump
specifications should be recorded upon receipt of the
pumping unit. Record all necessary information on the
pump service record page and inspection and repair
record provided at the front of this manual. This
information must be included in all correspondence
regarding the unit. This will ensure that the correct pump
and/or parts are ordered in a timely manner.
E. PARTS INVENTORY GUIDE. To avoid
unnecessary delays for maintenance, spare parts
should be readily available, purchase before and keep in
stock, for normal service. Most conditions will be
covered if this manual is followed.
F. PARTS ORDERING. When ordering replacement
parts, please specify:
Serial number of pump (located on nameplate)
Part name (located on parts list)
Quantity of parts needed
Carver Pump Company may ship an interchangeable
part that is not identical in appearance or symbol. This is
done only if the part has been improved. Examine parts
carefully upon delivery before questioning factory or
company representative. Never return parts to the
factory without authorization from Carver Pump
Company.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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If an impeller is ordered, specify diameter across blade
tips. Be sure diameter was NOT trimmed further than
diameter shown on Carver Pump Company records.
If a driver or driver parts are ordered, specify name of
manufacturer and all other data found on the driver
nameplate.
G. SAFETY PRECAUTIONS. The manual is designed
to provide adequate instructions for the safe and
efficient installation, operation, or maintenance of the
pump. Failure or neglect to properly install, operate, or
maintain the pump may result in personal injury,
property damage, or unnecessary damage to the pump.
This manual must be read and understood both by the
installing personnel and the responsible trained
personnel/operators prior to installation and operation,
and it must always be kept close to the location of the
pumping unit for easy access.
G.1 Summary of Safety Marking.
The safety instructions contained in this manual whose
non-observance might cause hazards to persons are
specially marked with the symbol:
General hazard sign to ISO 7000 - 0434.
The word "Caution" is used to introduce safety
instructions whose non-observance may lead to damage
to the machine and its functions. The word “Danger” is
used to introduce safety instructions whose non-
observance may lead to injury or loss of life to people
and damage to the machine or its functions.
Instructions attached directly to the machine, e.g.
Arrow indicating the direction of rotation
Markings for fluid connections must always be
complied with and be kept in a perfectly legible
condition at all times.
Observe all note, caution or danger tags attached to the
equipment or included in this manual.
G.2 Non-compliance with Safety Instructions.
Non-compliance with safety instructions may result in
personal injury, property damage, or unnecessary
damage to the pumping unit. Non-compliance with these
safety instructions will also lead to forfeiture of any and
all rights to claims for damages. Non-compliance, can
for example, result in:
Failure of important pumping unit functions.
Failure of prescribed maintenance and servicing
practices.
Hazard to personnel by electrical, mechanical,
and chemical effects as well as explosion.
Hazard to the environment due to leakage of
hazardous substances.
G.3 Safety Instructions for Maintenance, Inspection,
and installation Work.
The operator is responsible for ensuring that all
maintenance, inspection and installation work be
performed by authorized, qualified personnel who are
thoroughly familiar with the manual and pumping unit.
The pumping unit must have cooled down to ambient
temperature, pump pressure must have been released
and the pump must have been drained before working
on any pumping unit.
Work on the pumping unit must be carried out during
shutdown. The shutdown procedure described in the
manual for taking the unit out of service must be
adhered to.
Pumps handling fluids that are hazardous to personnel
must be decontaminated prior to being worked on.
Immediately following completion of the work, all safety
relevant and protective devices must be reinstalled
and/or reactivated.
Please observe all instructions set out in the section on
start-up before returning the pumping unit to service.
G.4 Unauthorized Modification and Manufacture of
Spare Parts.
Modifications or alterations of the pumping unit supplied
are only permitted after consultation with Carver Pump
and to the extent permitted by Carver Pump. Original
spare parts and accessories authorized by Carver Pump
ensure safety. The use of other parts can invalidate any
liability of Carver Pump for consequential damage
and/or warranty.
G.5 Unauthorized Modes of Operation.
The warranty relating to the operating reliability and
safety of the unit supplied is only valid if the pumping
unit is used in accordance with its designated use as
described in the following sections. The limits stated on
the nameplate must not be exceeded under any
circumstances.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
3
II. INSPECTION AND STORAGE.
A. INSPECTION. Upon receipt of the shipment,
unpack and inspect the pumping unit and individual
parts to insure none are missing or damaged. Carefully
inspect all boxes and packing material for loose parts
before discarding them. Immediately report any missing
parts or damage incurred during shipment to the factory
and to the Transportation Company and file your
“damage and/or lost in shipment” claim with the carrier.
B. STORAGE OF PUMP. If the equipment is not to be
immediately installed and operated, store it in a clean,
dry, well-ventilated place, free from vibrations, moisture
and rapid or wide variations in temperature.
NOTE
Storage requirements vary depending on
climatic environment, length of storage and
equipment. For storage periods of three months
or longer, contact manufacturer for specific
instructions. Improper storage could damage
equipment and would result in non-warranty
covered restoration of non-warranty covered
product failures.
When storing the pump up to three months rotate the
shaft for several revolutions at least once per month to
coat the bearings with lubricant, retard oxidation and
corrosion, and prevent possible false brinelling.
Consider a unit to be in storage when:
1. It has been delivered to the job site and is
waiting to be installed.
2. It has been installed but operation is delayed
pending completion of construction.
3. There are long (30 days or more) periods
between operating cycles.
4. The plant (or department) is shut down for
periods of longer than 30 days.
Measures to be taken for prolonged shutdown of
installed pumping unit. If the pumping unit remains
installed a periodic check of operation is in order to
make sure that the pump is always ready for instant
start-up and to prevent the formation of deposits within
the pump and the pump intake area. Start up the
pumping unit regularly once a month or once every 3
months for a short time (approximately 5 minutes)
during prolonged shutdown periods. Prior to operation
check run ensure that there is sufficient liquid available
for operating the pump.
III. INSTALLATION.
A. LOCATION. The pump assembly should be
located in an area that will permit periodic inspection
and maintenance. Head room and access should be
provided and all units should be installed in a dry
location with adequate drainage. The discharge piping
should be direct with as few elbows and fittings as
possible.
B. HANDLING.
CAUTION
Use a hoist with adequate lifting capacity.
Do not pick up the complete unit by the motor
or the pump shafts or motor lifting eyes.
If the pumping unit slips out of the sling
arrangement, it may cause injury to personnel
and/or damage to the pumping unit.
Moving the unit requires proper preparation and
handling. Always make sure that the pump cannot slip
out of the transport suspension arrangement. The RSV
pumps with motor installed tend to be top heavy; care
should be taken in handling and transporting to prevent
damage or injury caused by the pump falling over.
C. COUPLING ALIGNMENT. The pump and motor
are connected by a coupling. The base aligns the pump
and motor. No further alignment is necessary.
D. PRE-INSTALLATION PROCEDURES.
1. Always check the pump label against the
requirement to make sure you are installing the
proper pumps specified for the job.
2. Make sure that the pump suction marked by a
sticker, is connected to the liquid source and
that the discharge, similarly marked, is
connected to the discharge line.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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WARNING
Before work is performed on the RSV pump,
care should be taken to ensure that the
electrical power is disconnected to the motor to
prevent electric shock or premature starting
which could cause damage to persons, things
or the pump.
CAUTION
On three phase motor insulations, always
check for proper motor rotation prior to starting
by jogging the motor. Shaft rotation must turn
clockwise when viewed from the top of the
motor.
Make sure the motor is correctly wired; refer to
instruction on the motor nameplate.
3. Make sure that the pump base is firmly secured
to a solid flat surface and that the suction and
discharge lines are aligned and properly
supported to prevent pipe strain on the pump.
4. Ensure that the suction and discharge gaskets
are properly installed to prevent leaks and that
they do not restrict the flow to or from the pump.
Standard ANSI mating flanges should be used
to connect the pump to the piping. Suction and
discharge piping should be no smaller that the
respective pump port sizes.
5. Isolation valves should be installed on both the
suction and discharge side of the pump in the
event service of the pump is required.
6. Provide adequate space and ventilation around
the pump for service and motor cooling.
WARNING
Use standard plumbing practices to ensure
unnecessary line losses, cavitation and prevent
air lock.
7. If the installation of the motor is necessary, refer
to Section VI, Paragraph A for instructions.
E. PIPING. All piping should be independently
supported near the pump so that pipe strain will not be
transmitted to the pumping unit.
CAUTION
All piping connections must be made with the
pipe in a freely supported state. Do not apply
vertical or side pressure to align the piping with
the pump flange.
Before connecting suction, discharge, and auxiliary
piping, check to see that the piping is absolutely clean
internally. Any debris in the piping will be drawn into the
pump passageways and can cause extreme damage.
The internal diameters of the suction and discharge
lines must be equal to the internal diameters of the
pump suction and discharge nozzles.
F. AUXILIARY PIPING CONNECTIONS AND
GAUGES. In addition to primary piping connections, the
pump may require other connections such as gauges or
drains. All these lines and gauges should now be
installed.
G. MOTOR. See motor vendor’s manual for motor
information and information on connecting to the power
supply.
WARNING
Connection to the power supply must be
completed by a trained electrician only. Check
available main voltage against the data on the
motor rating plate and select appropriate start-
up method.
H. DIRECTION OF ROTATION. The standard
direction of rotation, when viewed from the motor end, is
clockwise.
The rotation arrow is located on the motor bracket, the
below photo shows the rotation arrow location on the
motor bracket. There is an arrow on both sides of the
motor bracket.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
5
IV. OPERATION.
A. PRE-START CAUTIONS.
WARNING
Before activating the pumping unit, check to
make sure there are no personnel working on
the unit. Serious injury or death to personnel
could result if the unit is activated while being
worked on.
1. Before starting or operating the pump, read this
entire manual, especially the following
instructions.
2. Observe all caution or danger tags attached to
the equipment.
WARNING
Make sure that all cables, electrical
connections and controls are in perfect working
order and properly grounded. Improper
installation can result in serious or even mortal
accidents to persons.
CAUTION
Never run the pump dry. Close running fits
within the pump are liquid lubricated. Dry
running will result in pump seizure or damage.
B. PRIMING. Dry running a centrifugal pump can
result in extensive damage and possible seizing. It is,
therefore, imperative that the pump be primed prior to
initial start-up and that prime must be maintained
through subsequent start-stop cycles.
Follow the procedure listed below:
1. Completely prime the pump by removing the
vent plug (212).
2. Using a funnel, fill the pump body with water
until it overflows and replace vent plug (212).
3. Alternatively for installations with positive
suction heads, close the discharge valve and
remove the vent plug (212).
4. Open suction valve until liquid flows out of the
vent plug opening and then replace the vent
plug securely and open the discharge valve.
5. It is recommended that a bleed valve be
installed in the discharge line or in a line from
the vent port to the reservoir. This will allow the
pressure in the pump to be relieved for service.
CAUTION
Installing a bleed valve is especially necessary
in hot water applications to prevent injury.
6. Pipe, valves and fittings must have a pressure
rating equal to or greater than the maximum
system pressure.
7. A bypass or pressure relief valve should be
installed in the discharge line if there is any
possibility the pump may operate against a
closed valve in the discharge line.
8. Minimum flow is required for proper cooling and
lubrication of the pump without which, damage
and premature failure will occur.
Table 1. Minimum Pumping Rate
Model
Minimum Flow Rate
(GPM)
RSV3
3.3
RSV5
6.7
RSV10
8
RSV18
11
RSV32
61
RSV45
112
RSV64
149
C. STARTING THE PUMP.
WARNING
Do NOT operate pumping unit against a closed
discharge system. If pump has any chance of
operation against a closed system, a bypass
system allowing a minimum design flow should
be installed. This bypass will be satisfactory for
short periods of operation. For extended
periods of operation the bypass should be
sized for the minimum continuous flow
required by the pump.
1. Check pump for proper priming per Section IV,
Paragraph B and install per Section III,
Paragraph D.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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2. Starting –When the pump is up to operating
speed, open discharge valve to obtain desired
capacity or pressure.
3. Check to make sure that all electric connections
are correct.
WARNING
Operating the pump without the guards in place
can cause physical injury.
4. Apply power to the motor. Check motor rotation.
Rotation should be clockwise when viewed from
the top of the motor. Rotation arrows are
located on the motor brackets refer to Section
III, Paragraph H for photo.
WARNING
RSV pumps are designed for continuous and
normal off/on operation. Rapid cycling can
cause high heat and loading that can cause
damage to the pump or motor.
5. Please refer to the motor manufacturer
specifications for starts per hour.
V. MAINTENANCE.
Generally the pump does not need continuous
supervision. The pump should always run quietly and
smoothly, without vibration. To ensure such operation,
the following maintenance schedule should be applied
at regular intervals during operation of the pump.
Occasional visual checks are recommended. Data
should be recorded for each pump to keep track of
maintenance which has been performed and to note
operational problems. A sample maintenance record
sheet is provided for this purpose at the front of this
manual.
Daily Inspection:
Visually inspect unit.
Weekly Inspection:
Check power (amps) readings.
Check pump discharge pressure.
Monthly Inspection:
Check foundation bolts.
Semi-annual Inspection:
If stand-by pumps are installed, it is advisable to
operate pumps on a rotation system to give each
pump a certain duty. This ensures that stand-by
pumps will always be in good condition for instant
start-up.
A. LUBRICATION OF MOTOR. See motor
manufacturer’s instructions to be sure motor bearings
are properly lubricated.
B. TORQUE VALUES. Refer to Tables 2 and 3 for
recommended torque values. Clean and properly
lubricate threads and bearing face of the fastener to
obtain the proper fastener loading from these torque
values. Fasteners should be tightened evenly and in
stages. Refer to your torque wrench manual for the
proper use of your wrench.
Table 2. Recommended Tie Rod
Torque Values (ft-lbs)
Model
Tie Rod
Thread Size
Specification
RSV3
M10
10ft-lbs 13N-m
RSV5
RSV10
M12
19ft-lbs 25N-m
RSV18
RSV(G)32
M16
45ft-lbs 61N-m
RSV(G)45
RSV(G)64

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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Table 3. Recommended Coupling Bolt Torque Values (ft-lbs)
Drawing Reference
120-5
120-6
Model
Bolt Size
Specification
Bolt Size
Specification
RSV3
M6
6 ft-lbs 8.5 N-m
M6
6 ft-lbs 8.5 N-m
RSV5
RSV10 2 –RSV10 3
M6
6 ft-lbs 8.5 N-m
M6
6 ft-lbs 8.5 N-m
RSV10 4 –RSV10 12
M8
15 ft-lbs 20 N-m
RSV10 13 –RSV10 16
M10
30 ft-lbs 40 N-m
RSV18 2
M6
6 ft-lbs 8.5 N-m
M6
6 ft-lbs 8.5 N-m
RSV18 3 –RSV18 5
M8
15 ft-lbs 20 N-m
RSV18 6 –RSV18 11
M10
30 ft-lbs 40 N-m
RSV32 1
M6
6 ft-lbs 8.5 N-m
M6
6 ft-lbs 8.5 N-m
RSV32 2-2 –RSV32 3-2
M8
15 ft-lbs 20 N-m
RSV32 3 –RSV32 10-1
M10
30 ft-lbs 40 N-m
M12
50 ft-lbs 68 N-m
RSV45 1-1 –RSV45 1
M8
15 ft-lbs 20 N-m
RSV45 2-1 –RSV 45 7-2
M10
30 ft-lbs 40 N-m
M12
50 ft-lbs 68 N-m
RSV64 1-1
M8
15 ft-lbs 20 N-m
RSV64 1-0 –RSV64 4-0
M10
30 ft-lbs 40 N-m
M12
50 ft-lbs 68 N-m
VI. SERVICE AND REPAIR.
For service and repair for each specific RSV model,
please refer to Section as indicated in Table 4.
A. MOTOR INSTALLATION ON BARE PUMP.
WARNING
When lifting the pump/motor, use appropriate
crane (or hoist), check position and tightness of
lift system so that weight of the pump is not
unbalanced. Failure to observe this precaution
can result in serious accidents.
A.1 Procedure for mounting motors for the
following models:
RSV3 2 –RSV3 12
RSV5 2 –RSV5 6
RSV32 1
RSV10 2 –RSV10 3
RSV18 2
WARNING
Before attempting to disassemble the pump,
the electrical power supply to the driver must
be locked and tagged in the “OFF” position to
prevent injury or death to personnel servicing
the pumping unit.
1. Follow general safety and electrical instructions
on the motor nameplate.
2. Remove coupling guard from the pump end.
3. Carefully loosen the screws on the coupling.
4. Position the motor vertically over the pump with
the keyways lined up on the motor and the
pump. Then lower the motor into place. If
necessary rotate the motor so that the mounting
bolt holes line up with the corresponding holes
in the pump bracket.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
8
A.1 Procedure for mounting motors for the
following models: - Continued
5. Insert the mounting bolts and tighten firmly
using a crisscrossing pattern.
6. Using two screwdrivers, lever between the
motor bracket and the coupling raise the pump
shaft until it touches the motor shaft. Then
tighten the coupling screws to secure the motor
and pump shaft into position.
7. Rotate the coupling to assure that the pump
turns freely. If rubbing occurs loosen the
coupling screws on the motor side and repeat
step (5).
8. Be sure to reinstall the coupling guard.
Table 4. RSV model Specific Service and Repair
Pump Model
Install Motor
Remove Motor
from Pump
Replace
Mechanical Seal
Replace
Mechanical Seal
& Hydraulic Seal
RSV3 2 –RSV3 13
Section VI,
Paragraph A.1
Section VI,
Paragraph B.1
Section VI,
Paragraph C.1
Section VI,
Paragraph C.4
RSV3 15 –RSV3 18
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV5 2 –RSV5 6
Section VI,
Paragraph A.1
Section VI,
Paragraph B.1
Section VI,
Paragraph C.1
Section VI,
Paragraph C.4
RSV5 7 –RSV5 16
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV10 2 –RSV10 3
Section VI,
Paragraph A.1
Section VI,
Paragraph B.1
Section VI,
Paragraph C.1
Section VI,
Paragraph C.4
RSV10 4 –RSV10 16
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV18 2
Section VI,
Paragraph A.1
Section VI,
Paragraph B.1
Section VI,
Paragraph C.1
Section VI,
Paragraph C.4
RSV18 3 –RSV18 11
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV32 1
Section VI,
Paragraph A.1
Section VI,
Paragraph B.1
Section VI,
Paragraph C.1
Section VI,
Paragraph C.4
RSV32 2-2 –RSV32 3-2
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV32 3 –RSV32 10-1
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.3
Section VI,
Paragraph C.6
RSV45 1-1 –RSV45 1
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV45 2 –RSV45 7-2
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.3
Section VI,
Paragraph C.6
RSV64 1-1
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.2
Section VI,
Paragraph C.5
RSV64 1 –RSV64 4
Section VI,
Paragraph A.2
Section VI,
Paragraph B.2
Section VI,
Paragraph C.3
Section VI,
Paragraph C.6

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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A.2 Procedure for mounting motors for the
following models:
RSV3 13 –RSV3 18
RSV5 7 –RSV5 17
RSV10 4 –RSV10 16
RSV18 3 –RSV18 11
RSV32 All Sizes (Except RSV32 1)
RSV45 All Sizes
RSV64 All Sizes
WARNING
Before attempting to disassemble the pump,
the electrical power supply to the driver must
be locked and tagged in the “OFF” position to
prevent injury or death to personnel servicing
the pumping unit.
1. Follow general safety and electrical instructions
on the motor nameplate.
2. Attach a strong sling or chains to the motor
lifting lugs or eyebolts to ensure that the motor
is balanced when lifted vertically.
3. Position the motor, shaft down, above the pump
assembly.
4. Apply a thin coat of anti-seize to the motor shaft
and to the inside of the coupling.
5. Ensure that the motor key has been placed
firmly into the motor shaft keyway.
6. Align the motor key and keyway with the
coupling keyway and slowly lower the motor into
position ensuring that the key slides into the
coupling key.
7. Prior to lowering the motor completely, rotate
the motor so that the mounting holes are
aligned with the holes in the motor support.
8. Insert the four motor bolts into the proper holes
and tighten evenly using an alternating crossing
pattern to ensure proper alignment.
B. REMOVING MOTOR FROM COMPLETE PUMP.
WARNING
Before attempting to disassemble the pump,
the electrical power supply to the driver must
be locked and tagged in the “OFF” position to
prevent injury or death to personnel servicing
the pumping unit.
CAUTION
Extreme caution should be exercised in this
operation since the pump may be under system
pressure at this point.
Relieve the pressure before performing work on
the pump. Use a pressure bleed valve in hot
water applications where water temperature
could cause physical injury.
B.1 Procedure for removing motors for the
following models:
RSV3 2 –RSV3 12
RSV5 2 –RSV5 6
RSV32 1
RSV10 2 –RSV10 3
RSV18 2
1. Follow the general safety and electrical
instructions, disconnect the power to the motor
and remove power cords.
2. Loosen and remove the four motor bolts.
3. Attach a strong sling or chains to the motor
lifting lugs or eyebolts to ensure that the motor
is balanced when lifted vertically.
4. Remove coupling guards.
5. Loosen, but do not remove the coupling bolts.
6. Slowly lift the motor off the pump assembly
being careful to retain the shaft key. If the motor
does not slide easily out of the coupling do not
rise the pump into the air, dropping the pump
end can cause damage. Fix the pump base to
the floor or bench and lift the motor again.

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B.2 Procedure for removing motors for the
following models:
RSV3 13 –RSV3 18
RSV5 7 –RSV5 17
RSV10 4 –RSV10 16
RSV18 3 –RSV18 11
RSV32 All Sizes (Except RSV32 1)
RSV45 All Sizes
RSV64 All Sizes
1. Follow the general safety and electrical
instructions, disconnect the power to the motor
and remove power cords.
2. Loosen and remove the four motor bolts.
3. Attach a strong sling or chains to the motor
lifting lugs or eyebolts to ensure that the motor
is balanced when lifted vertically.
4. Slowly lift the motor off the pump assembly
being careful to retain the shaft key. If the motor
does not slide easily out of the coupling do not
raise the pump into the air, dropping the pump
end can cause damage. Fix the pump base to
the floor or bench and lift the motor again.
C. GENERAL PUMP MAINTENANCE AND
DISASSEMBLY INSTRUCTIONS. The instructions that
follow are an aid for properly trained personnel to
service your pump. If a specific sectional assembly
drawing exists for a particular job then that drawing
should be referred to for service work. Read this entire
section before disassembling the pump.
NOTE
Before beginning, it is recommended that tape
or some other method of marking be used to
make markings on the outer “can” assembly to
indicate orientation, such as “top” and “bottom”.
Make corresponding alignment markings that
indicate where the bottom of the can and lower
casing assembly meet. Also make another
mark to indicate where the top of the can and
lower portion of the cast iron motor support
meet.
Always inspect for damage of the other
components and clean any debris that you may
find during maintenance procedures.
Cross sectional view of the pumps are good
references for these procedures.
C.1 Procedure for replacing the mechanical seal
for the following models:
RSV3 2 –RSV3 12
RSV5 2 –RSV5 6
RSV32 1
RSV10 2 –RSV10 3
RSV18 2
1. Isolate the pump by closing the isolation valves
on the suction and discharge lines.
CAUTION
Extreme caution should be exercised in this
operation since the pump may be under system
pressure at this point.
Relieve the pressure before performing work on
the pump. Use a pressure bleed valve in hot
water applications where water temperature
could cause physical injury.
2. Carefully relieve the pressure in the pump by
opening the vent valve or drain plugs.
3. Remove the motor as detailed in Section VI,
Paragraph B.1.
4. Remove the pump coupling bolts (120-5) and
remove the coupling.
5. Remove the shaft pin (131-1)
6. Remove the 4 socket head screws (120-3) from
the stationary mechanical seal seat (111-3).
Remove the seal seat and stationary seal.
Press the old stationary seal assembly out of
the stationary seal housing (111-3). The
stationary seat is rubber O-ring mounted.
NOTE
RSV32 1 will have a cartridge type of
mechanical seal. The rotating and stationary
pieces of the seal will all be removed in this
step, proceed to step 20.
7. Loosen and remove four tie rod nuts (128-1).
8. Gently tap upward on the base of the motor
bracket (162) with a soft mallet to loosen the fit.
Remove the motor bracket.
9. Remove the old rotating seal assembly by lifting
vertically off the pump shaft. Do not remove

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
11
the shaft sleeve that is below the rotating
assembly.
10. Remove the outer casing (007), remove O-ring
(115-1) from the top and bottom of the outer
casing.
11. Slide the rotating seal assembly onto the shaft
taking care not to scratch or touch the seal face.
Apply a small amount of non-petroleum based
lubricant on the inside of the rotating assembly.
(i.e. dish soap, or Dow Corning #4 lubricant or
similar) If touching the seal face is necessary,
gently wipe with a clean soft tissue.
12. Push the assembly into place on the shaft,
seating the rubber boot snugly.
13. Carefully, press the stationary seal assembly
into the stationary seal is evenly seated.
14. Using a new outer casing O-ring (115-1) apply a
light film of lubricant such as Dow Corning #4 or
similar to the O-ring and place it in the lower O-
ring groove in the outer casing (007). Ensure
that it is seated smoothly and evenly in the
groove.
15. Place the outer casing (007) over the entire
assembly and into the bottom casing (006). The
outer casing may not seem to seat at this time,
but the tie rods will be tightened in a later step,
which will complete the seating of the outer
casing (007).
16. Using a new outer casing O-ring (115-1), apply
a light film of lubricant such as Dow Corning #4,
or similar, to the O-ring and place it into the O-
ring groove on the upper pump body (007)
ensuring that it is seated smoothly into the O-
ring grove at the top of the outer casing (007).
17. Carefully place the motor bracket (162) over the
pump shaft and the tie rods and onto the outer
casing.
18. Replace the tie rod washers and nuts onto the
tie rods finger tight.
19. Commence staggered tightening of the tie rod
nuts to endure even distribution of pressure and
proper seating of the motor bracket onto the
pump casing (007). Tighten all nuts to fit snugly.
See torque specifications in Tables 2 and 3.
20. Slide the stationary seal seat (111-3) assembly
over the shaft into place. Secure the assembly
by installing and tightening the 4 socket head
screws (120-3).
21. Reinstall the shaft pin (131-1).
22. Reinstall the coupling by sliding one half and
then the other half of the coupling over the shaft
pin. Install the bolts in the lower half of the
coupling tightening only until the shaft pin is
secured in place and the coupling will not fall
down the shaft. Final tightening of the coupling
bolts will occur upon motor installation.
23. For reinstallation of the motor, see Section VI,
Paragraph A.1.
C.2 Procedure for replacing the mechanical seal
for the following models:
RSV3 13 –RSV3 18
RSV5 7 –RSV5 16
RSV10 4 –RSV10 16
RSV18 3 –RSV18 11
RSV32 2-2 –RSV32 3-2
RSV45 1-1 –RSV45 1
RSV64 1-1
1. For instructions on removing the motor from the
pump see Section VI, Paragraph A.2.
2. Remove the coupling guards from each side of
the pump motor support.
3. Remove the two socket head bolts that hold the
shaft coupling together. Remove the front half of
the shaft coupling exposing the shaft pin.
4. Using pliers carefully grasp the shaft pin (131-1)
and remove it from the coupling and pump
shaft. This will release the pump shaft from the
fixed half of the coupling assembly.
5. Remove the motor adaptor assembly (051) that
houses the upper bearing and the fixed portion
of the coupling assembly. Insert two
screwdrivers or small pry bars into the groove
between the motor adaptor (051) and the motor
bracket (162) to separate them. Take care as
not to damage or crack these parts.
6. Remove the four small socket head bolts that
secure the stationary seal seat (120-3). After
removing these bolts, remove the stationary
seal assembly (111-3). Slide the stationary seal
seat over the pump shaft to remove.

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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NOTE
RSV models 32, 45 and 64 listed in Paragraph
VI, Section C.2, are equipped with a cartridge
type mechanical seal. You will be removing
both the stationary and rotating pieces of the
mechanical seal in this step. After removal of
the seal go to step 19.
7. Remove the tie rod nuts and washers. The
motor bracket support (162) can now be
removed.
8. Remove the old rotating seal assembly by lifting
vertically off the pump shaft. The rotating
assembly is rubber boot mounted.
NOTE
Do not remove the shaft sleeve that is below
the rotating assembly.
9. Remove the outer casing (007), remove the O-
ring (115-1) from the top and bottom of the outer
casing.
10. Slide the new rotating seal assembly onto the
shaft taking care not to scratch or touch the seal
face. Apply a small amount of non-petroleum
base lubricant on the inside of the rotating
assembly. (i.e., dish soap or Dow Corning #4
lubricant or similar) If touching the seal face is
necessary, gently wipe with a clean soft tissue.
11. Push the rotating seal assembly into place on
the shaft, seating the rubber boot snugly.
12. Carefully press the stationary seal assembly
into the stationary seal housing (111-3). Be sure
that the stationary seal is evenly seated.
13. Using a new outer casing O-ring (115-1) apply a
light film of lubricant such as Dow Corning #4 or
similar to the O-ring and place it in the lower O-
ring groove in the outer casing (007). Ensure
that it is seated smoothly and evenly in the
groove.
14. Place the outer casing (007) over the entire
assembly and install into the bottom casing
(006). The outer casing may not seem to seat at
this time, but the tie rods will be tightened in a
later step, which will complete the seating of the
outer casing (007).
15. Using a new outer casing O-ring (115-1), apply
a light film of lubricant such as Dow Corning #4,
or similar, to the O-ring and place it into the
upper O-ring groove on the outer casing (007)
ensuring that it is seated smoothly into the O-
ring groove.
16. Carefully place the motor bracket (162) over the
pump shaft and the tie rods and onto the outer
casing.
17. Replace the tie rod washers and nuts onto the
tie rods finger tight.
18. Commence staggered tightening of the tie rod
nuts to ensure even distribution of pressure and
proper seating of the motor bracket onto the
pump casing (007). Tighten all nuts to fit snugly.
See torque specifications in Tables 2 and 3.
19. Slide the stationary seal seat assembly (113-1)
(or cartridge sea assembly if equipped) over the
shaft and into place. Secure the assembly by
installing and tightening the 4 socket head
screws (120-3).
NOTE
For RSV models 32, 45 and 64, after securing
the seal in place as instructed above, tighten
the three setscrews in the locking collar.
20. With the hole in the end of the pump shaft
visible through the side opening of the motor
bracket (162), reinstall the upper motor adaptor
(051) and bearing assembly into the motor
bracket. Be sure that the motor mounting holes
are aligned correctly and the hole in the end of
the pump shaft is lined-up with the hole in the
back of the motor coupling behind that pump
shaft.
21. Next, reinstall the shaft pin (131-1) into the hole
in the pump making sure that it seats inside the
hole in the back of the coupling also. Reattach
the other coupling half and tighten the two
coupling bolts with an allen wrench. See torque
specifications in Tables 2 and 3.
22. Refer to Section VI, Paragraph A.2 for motor
installation instructions.
C.3 Procedure for replacing the mechanical seal
for the following models:
RSV32 3 –RSV32 10-1
RSV45 2-1 –RSV45 7-2
RSV64 1 –RSV64 4
1. Remove the coupling guard on each side of the
pump’s cast iron motor bracket (162).
2. Remove the two socket head bolts that hold the
two halves of the lower spacer coupling together
(120-6). Remove the front half of the shaft
coupling which will then expose the shaft pin
(131-1).

RSV Series –In-Line Vertical Multi-Stage, Ring Section Pump December 2016
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3. Next, loosen but do not remove the four hex
head bolts (120-5) that secure the remaining
half of the spacer coupling to the upper coupling
and bearing assembly above. With these bolts
loosened, use pliers to carefully grasp and
remove the shaft pin (131-1) from the pump
shaft. This will disengage the pump shaft from
the coupling.
4. Completely remove the four hex head bolts
(120-5) that were loosened in the previous step.
With these bolts removed, remove the
remaining half of the spacer coupling.
5. Remove the four retaining bolts from the
stationary seal plate (120-3). Loosen the three
setscrews in the locking collar above the
stationary seal plate and slide the entire
cartridge seal.
6. Carefully install the new cartridge seal over the
pump shaft and into the top of the pump being
sure that it is firmly seated. Reinstall the four
retaining bolts (120-3) that secure the cartridge
seal to the pump and tighten the three
setscrews in the locking collar.
7. Reinstall the spacer coupling. Thread the hex
head bolts (102-5) back through the top of the
spacer coupling loosely so it is supported but do
not fully tighten. Be sure that the cross key in
aligned with the keyway in the bearing assembly
above. Spin the spacer coupling so that hole in
the pump shaft is aligned with holes in the rear
of the spacer coupling.
8. Reinstall the shaft pin (131-1) through the hole
in the pump shaft making sure that it seats in
the blind hole in the back of the spacer coupling.
Once the locking pin has been installed and the
pump shaft and spacer coupling are engaged
via the locking pin, install the front half of the
spacer coupling and install the two socket head
bolts (120-6) that secure it.
9. Firmly tighten the four hex head bolts (120-5)
that secure the spacer coupling to the upper
coupling and bearing assembly above being
sure that the drive key is positioned correctly so
that these parts are properly engaged with each
other.
NOTE
The working length of the seal is set by
completion of this step. There is no other
adjustment that needs to be made to the seal.
10. Reattach the coupling guards to each side of
the pump and then reinstall the motor to
complete.
11. See Section VI, Paragraph B.2 for motor
installation.
C.4 Procedure for replacing the pump hydraulic
assembly for the following models:
RSV3 2 –RSV3 12
RSV5 2 –RSV5 6
RSV32 1
RSV10 2 –RSV10 3
RSV18 2
1. Remove the old mechanical seal assembly and
the outer casing as detailed in Section VI,
Paragraph C1, steps 1 through 10.
2. Remove old hydraulic assembly.
3. Ensure that the proper replacement hydraulic
(stack) assembly has been selected and
provided for the pump.
4. Lift the replacement hydraulic (stack) assembly
and place it onto the bottom casing (006)
ensuring that it is seated properly. The bottom
impeller should slip into the casing wear ring.
5. Using a new outer casing O-ring (115-1) apply a
light film of lubricant such a Dow Corning #4 or
similar to the O-ring and place it in the lower O-
ring groove in the outer casing (007). Ensure
that it is seated smoothly and evenly in the
groove.
6. Place the outer casing (007) over the entire
assembly and install onto bottom casing (006).
The outer casing may not seem to seat at this
time, but the tie rods will be tightened in a later
step, which will complete the seating of the
outer casing (007).
7. Using a new outer casing O-ring (115-1), apply
a light film of lubricant such as Dow Corning #4,
or similar, to the O-ring and place it into the O-
ring groove on the upper pump body (007)
ensuring that it is seated smoothly into the O-
ring groove.
8. Ensure that the rotating mechanical seal
assembly in installed as detailed in Section VI,
Paragraph C.1, steps 11 and 12.
9. Carefully place the motor bracket (162) over the
pump shaft and the tie rods and into the outer
casing.
10. Replace the tie rod washers and nuts onto the
tie rods finger tight.
11. Commence staggered tightening of the tie rod
nuts to ensure even distribution of pressure and