Sundyne LMV-313 Instruction And Operation Manual

SUNDYNE

LMV-313 PUMPS

Instruction and Operation

Manual

August 2007

Copyright

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording or otherwise without the prior permission of Sundyne Corporation.
© 2007 Sundyne Corporation

Warranty

Sundyne Corporation warrants to Buyer for a period of twelve (12) months from the date of being placed in service (but not to exceed eighteen
(18) months after the date of shipment) that the equipment at the time of shipment will be free from defects of design, material and workmanship.
If any defects or malperformance occur during the warranty period, Sundyne’s sole obligation shall be limited to alteration, repair or replacement
at Sundyne’s expense, F.O.B. Factory, of parts or equipment, which upon return to Sundyne and upon Sundyne’s examination prove to be
defective. Equipment and accessories not manufactured by Sundyne are warranted only to the extent of and by the original manufacturers’
warranty. Sundyne shall not be liable for damage or wear to equipment caused by abnormal conditions, vibration, failure to properly prime or to
operate equipment without flow or caused by corrosives, abrasives or foreign objects. THE FOREGOING WARRANTY IS EXCLUSIVE AND
IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESSED OR IMPLIED INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. In no event shall Sundyne be liable for consequential or incidental
damages.

Contents

CONTENTS .........................................II

INTRODUCTION & SAFETY...............1

Text Symbols........................................... 1

Equipment and Safety Precautions .. 1

Wearing Personal Protective

Equipment .............................................2

Using Forklifts ....................................... 2

Ensuring Electrical Safety................... 2

Testing Equipment ............................... 2

Using Chemicals .................................. 2

Protection from Falling ........................2

Preventative Machine Guards............ 2

TRANSPORT AND STORAGE ...........3

Inspection................................................. 3

Storing Your Pump Short-Term .........3

Base Mounted (BMP) Units .................7

Driver and Coupling.............................. 7

Flexible Coupling for LMV Units

Without a Vertical Stand....................... 7

Lube System............................................ 8

Gearbox Heat Exchanger..................... 8

Oil Manifolds .........................................9

Remote Heat Exchanger..................... 9

Gearbox Sump........................................9

SundGard
Main Lube Pump and Lube Oil

Priming Kit............................................. 10

Oil Pressure........................................... 11

®

Oil Filter............................ 10

Storing Your Pump Long-Term..........3

PRODUCT DESCRIPTION..................4

Sundyne Centrifugal Pumps............... 4

INSTALLATION................................... 5

Suction and Discharge Piping............ 5

Diffuser Cavity Vent .............................. 5

Seal Environmental Control System.6

Liquid Buffer System............................ 6

Mounting Vertical Units Without

Stands....................................................... 6

Mounting Vertical Units with Stands

(LMV) .........................................................7

COMMISSIONING, START UP, &

OPERATION...................................... 12

Pre-Commissioning............................. 12

Familiarizing Yourself with the Pump

............................................................... 12

Driver Instructions .............................. 12

Verifying Auxiliaries............................ 12

Installing a Seal Environmental

Control System ................................... 12

Checking Driver Rotation .................. 12

Piping Connections ............................ 12

Pre-Start Up........................................... 13

Pressurizing the Fluid Loop .............. 13

Servicing the Gearbox....................... 13

Auxiliary Lube Pump.......................... 13

Setting the Valves .............................. 13

Operating Conditions.......................... 13

Verifying Operating Conditions ........ 13

Adjusting the Cooling Flow ............... 13

Sundyne Corporation http://www.sundyne.com

ii

Installation and Start-Up Checklist .14

Start-Up Procedures............................ 15

Controlling the Pump During Startup

................................................................... 16

Single Operation................................. 16

Parallel Operation............................... 16

Operation of Sundyne Pumps.......... 17

Suction Conditions ............................. 17

Minimum Flow Conditions................. 17

Entrained Gases................................. 17

System Head Curve........................... 17

Parallel Operation............................... 18

MAINTENANCE................................. 19

Disassembly of LMV-313.................... 19

Inspection and Cleaning and Repair

................................................................... 27

Inspecting All Bearings...................... 27

High Speed Shaft ............................... 27

Gearbox Mechanical Seal................. 27

Upper Shaft Sleeve............................ 28

Falk Steelflex Type Coupling

Specifications .......................................40

Falk Double Gear Type Coupling

Specifications .......................................40

Falk Double Gear Type-Vertical

Specifications .......................................41

Thomas Type DBZ Coupling

Specifications .......................................41

Thomas SN Spacer Type Vertical &
Horizontal Coupling Specifications 42

Gearbox Lube Oil Specifications..... 43

Gearbox and Pump Torque Values.44

Reassembling the LMV-313 ............... 45

TROUBLESHOOTING.......................55

Gearbox & Pump Diagnostics.......... 55

Pump Mechanical Seal Diagnostics 58

Bearing and Shaft Clearances.......... 28

Pump Assembly and Clearance

Adjustments.......................................... 29

General Clearance Adjustment

Information........................................... 29

Impeller Spacer Adjustments ...........29

Inducer Housing Shim Adjustments 29

Procedure for Checking the High­Speed Shaft Endplay and Shoulder

Height...................................................... 33

Assembly Clearance Data Sheet..... 35

Specialty Tools..................................... 37

Shaft Loading Tool............................. 37

Impeller Locking Tool......................... 39

DRAWINGS & PARTS LISTING ....... 60

Mechanical Seals ................................. 60

Wet-End Components......................... 62

Gearbox Parts List............................... 64

Shaft Assemblies................................. 68

Chemical Barrier Gasket....................69

Single Seal Arrangement and Parts 70
Double Seal Arrangement and Parts

................................................................... 72

Tandem Seal Arrangement and Parts

................................................................... 74

Sundyne Corporation http://www.sundyne.com

iii

Instruction and Operation Manual

INTRODUCTION & SAFETY

Text Symbols

The following symbols may be found in the text
of this manual.

They have the following meanings:

WARNING: Text accompanied by this

symbol indicates that failure to follow
directions could result in bodily harm or
death.

ELECTRICAL HAZARD: Text

accompanied by this symbol indicates
that failure to follow directions could result
in electrical damage to equipment or
electrical shock.

Equipment and Safety Precautions

Sundyne Corporation manufactures centrifugal
pumps to exacting International Quality
Management System Standards (ISO 9001) as
certified and audited by Lloyd’s Register Quality
Assurance Limited. Genuine parts and
accessories are specifically designed and tested
for use with these products to ensure continued
product quality and performance. Sundyne
cannot test all parts and accessories sourced
from other vendors; incorrect design and/or
fabrication of such parts and accessories may
adversely affect the performance and safety
features of these products. Failure to properly
select, install or use authorized Sundyne pump
parts and accessories is considered misuse and
damage or failure caused by misuse is not
covered by Sundyne’s warranty. Additionally,
modification of Sundyne products or removal of
original components may impair the safety of
these products and their effective operation.

RECOMMENDED: Text accompanied by

this symbol indicates recommended
usage.

REMINDER: Text accompanied by this

symbol indicates a reminder to perform
an action.

EQUIPMENT USE ALERT: Text

accompanied by this symbol indicates
that failure to follow directions could result

in damage to equipment.

CAUTION

Sundyne pumps may handle hazardous,
flammable, and/or toxic fluids. Proper personal
protective equipment should be worn.
Precautions must be taken to prevent physical
injury. Pumpage must be handled and disposed
of in accordance with applicable environmental
regulations.

Note: Safety procedures must be applied

prior to any installation, maintenance,
or repair of a Sundyne pump. Failure to
follow safety precautions may lead to
injury!

1

Instruction and Operation Manual

Wearing Personal Protective
Equipment

To ensure safety, protective equipment must be
worn at all times when installing, performing
maintenance, or repairing equipment. The
following safety recommendations must be
adhered to for optimum safety:

• Safety glasses, with the minimum
requirement of side shields, must be worn
at all times.

• Steel-toed shoes must be worn when
lifting equipment greater than 15 pounds
(7 kg) or if pallet jacks or forklifts are
operated.

• Hearing protection is strongly
recommended at all times when noise
levels exceed 85 dB during an eight (8.0)
hour period.

Note: Chemical resistant gloves must be used

if chemicals are utilized (refer to Using
Chemicals for additional information).

Note: A dust mask respirator must be worn if

chemicals have warning labels
regarding fumes, dust, or mists.

When using more than one piece of protective
equipment, consider their compatibility. For
example, safety glasses will not interfere with
hearing protection equipment. Be sure to clean
all pieces of personal protective equipment
immediately after each use.

Once all work has been completed, the person
installing the lock or tag must remove it
according to company procedure.

Testing Equipment

Prior to performing a test on newly installed,
maintained, or repaired equipment; all personnel
in the immediate area must be warned.

Note: Follow company procedures prior to

equipment testing at all times.

Using Chemicals

Any chemicals to be used must be accompanied
by a relevant material safety data sheet (MSDS),
in accordance with government legislation. If
applicable, use chemical proof gloves.

Note: An eye wash station (or equivalent)

should be available in the event of
injury. If any hazardous or flammable
chemicals pass through the equipment,
a complete decontamination of the
equipment is required.

Protection from Falling

Fall protection and associated preventative
measures are required when working on
equipment located six feet or higher from the
ground.

Note: Follow company fall prevention

procedures prior to working on
equipment.

Using Forklifts

Any persons operating a forklift must have an
active recognized operator license.

Note: Before initializing forklift operation,

verify that the lift is in a safe operating
position.

Ensuring Electrical Safety

All electrical sources must be powered-off
before installation, service, or repair of
equipment occurs.

Note: Sundyne recommends that a Lock-

out/Tag-out program be followed prior
to altering the equipment. Locks or

2

tags must be provided to warn
employees that equipment is
temporarily unavailable.

Preventative Machine Guards

Preventative guards must remain in place on all
equipment.

Note: Only remove the guards while

performing maintenance or repair.

Replace the guards immediately after working
on the equipment and prior to start up.

EXPLOSION/FIRE HAZARD

Note: Never use an acetylene torch, open

flame, or heat to attempt to remove
parts that have seized together in
Sundyne equipment. Any residual
process gas or liquid that is flammable
can result in an explosion or fire with
potential for serious injury or death.

Instruction and Operation Manual

TRANSPORT AND STORAGE

Inspection

Immediately inspect your Sundyne product upon
receipt of the equipment. Check for any
damage, which may have occurred during
shipment. Notify the carrier and Sundyne
immediately if damage is evident.

Storing Your Pump Short-Term

If your Sundyne pump is not to be installed
immediately, protect it from exposure to
moisture and dust. Do not remove the factory
installed shipping covers for casing flanges and

Storing Your Pump Long-Term

In addition to the precautions in the short-term
section above, additional precautions are
required for long-term storage.

If your Sundyne pump will not be operated for a
period of time exceeding six months from the
date of shipment, long-term storage conditions
must be met to ensure minimum corrosion
damage to components.

Note: Sundyne does not accept liability for

equipment damaged during the storage
period. Sundyne does not guarantee
the quality of equipment during and
after the storage period.

Note: The input shaft on the pump may not

seal ports. Ensure that the shipping covers be
kept securely in place.

Note: Observe the storage instructions

Factors, which affect the quality of a Sundyne
pump, when stored, are:

Long-term storage methods must prevent
damaging conditions from making contact with
the internal components of the equipment. When
the equipment is stored in strong chemical
environments or near salt water, protection must
occur immediately upon receipt of the
equipment.

turn freely due to seal drag and speed
increasing gear meshes. If the input
shaft does turn freely, and if rotation is
“not smooth,” damage may have
occurred during shipping.

provided by the driver manufacturer.

• Humidity

• Temperature

• Surrounding chemicals

To ensure the original quality of the Sundyne
pump after storage, all components must be
inspected by an authorized Sundyne service
engineer. Components that are not
manufactured by Sundyne (except mechanical
seals) must be inspected by its own
manufacturer.

Note: Any inspection fees are the sole

responsibility of the purchaser.

3

Recommended Long-Term Storage
Procedures

Sundyne recommends that you do the following
to prevent damage to your pump during long­term storage:

1. Store your pump only in an indoor, climate­controlled building. These conditions will
maintain constant temperature and humidity.

2. Perform inert gas purging of component
internals.

Instruction and Operation Manual

3. Ensure oil flooding of gearbox internals.

4. Use desiccant bags.

PRODUCT DESCRIPTION

Sundyne Centrifugal Pumps

Sundyne pumps provide high-energy
performance and competitive efficiencies in an
industrial quality, compact unit that is simple to
maintain. Sundyne pumps are single stage that
utilizes an integral gearbox. Designed to
increase the pressure of a continuous flow of
fluid by applying centrifugal action, Sundyne
pumps are most commonly used in HPI, CPI,
and Boiler Feed applications. Commonly applied
in refineries, petrochemical plants, and power
generation plants, Sundyne pumps are used in
high-head, low-to-medium flow processes. This

Note: Because long-term storage of

equipment is of a highly critical nature,
it is recommended that Sundyne be
contacted to provide more details on
the above procedures.

manual presents installation, servicing,
troubleshooting, maintenance and spare parts
information for the latest configuration of
Sundyne centrifugal pumps.

Note: Parenthetical numbers included in the

text correspond to item numbers on the
illustrated figures. The correct spare
part can be ordered for any generation
pump by referencing the item and serial
numbers.

4

Instruction and Operation Manual

INSTALLATION

Suction and Discharge Piping

Please adhere to the following best practices for
installing and maintaining suction and discharge
piping:

1. Install a suction (35-40 mesh) strainer and
clean the suction line prior to starting the
pump. This procedure will protect the
impeller from damage by mill scale, welding
slag, or other foreign particles during initial
startup.

Note: Sundyne Recommends installation of a

differential pressure instrument across
strainer to indicate strainer condition.

2. When installing piping to the pump, ensure
that all piping is supported independently
from the pump.

3. All piping must always line up with the pump
flanges.

Note: Never use force to position piping into

place at the flanged suction and
discharge connection locations. Failure
to have piping properly aligned may
impose excessive strains on the unit.

4. Sundyne recommends using a straight pipe
assembly of at least three times the length
of the pipe diameter.

Note: Carefully select the size of pipe and

fittings to be installed so that friction
losses will remain low.

5. Never use a suction pipe that is smaller in
diameter than the pump suction inlet.

6. Sundyne recommends installation of a
discharge check valve to prevent reverse
rotation.

7. Use block valves (both suction and
discharge) when isolating the pump during
shutdown. This practice will minimize
process leakage and prevent possible
reverse rotation from pump back-flow.

8. It is recommended that suction and
discharge pressure gauges be installed on
any pump that is not flow controlled. If no
flow measuring device is installed there is no
way to determine accurately where on its
curve the pump is operating.

Diffuser Cavity Vent

The diffuser cavity vent must be open to
atmosphere or to a safety drain with no
backpressure. See figure “Wet End
Components” for location.

5

Note: Process fluid may accumulate causing a

potentially hazardous situation if the
diffuser cavity is not properly vented.

Instruction and Operation Manual

Seal Environmental Control System

A seal environmental control system may be
required depending upon the pump seal
arrangement and application.

Always maintain the pump seal environment as
detailed on the specification sheet that
accompanies each unit.

Note: For most applications, a standard

control system can be obtained from
the factory.

Note: Diffuser Cavity Vent must be vented to

atmospheric drain.

Ensure that the specified seal environmental
control system is properly installed and that the
ports are open (or plugged) as indicated in
Figure 1.

Note: Port 1 must always be open or routed

to flare so that it is free to drain.

Figure 1. Seal Housing Port Identification

Note: Port 5 is the highest point in a vertically mounted pump and should be used for start up venting

only.

Liquid Buffer System

For double liquid seals and tandem liquid seals,
A liquid buffer system is used. Introduce the
buffer liquid into port 7, which will flow through
the seal cavity, and out from port 2.

Buffer flow should be 0.5 to 3 gpm (2 to 12
liters/min) with an inlet temperature of 60

o

F (16o to 49oC), and inlet pressure as

120
indicated on the pump specification sheet. The
liquid must be clean to 5 microns.

o

to

Mounting Vertical Units Without Stands

For all vertical units without stands, a mounting
base is recommended. The pump should be
mounted on a rigid foundation, secured in
position by one-inch diameter bolts. The bolts

should be installed in the foundation as shown
on the installation drawing. The length of the
bolts should be sufficient to extend at least ½­inch above the nut.

6

Instruction and Operation Manual

Mounting Vertical Units with Stands (LMV)

Grouting of the base plate is required for all
vertical stand units. The top of the stand (driver
mounting surface) should be leveled by
shimming under the base prior to grouting the

Base Mounted (BMP) Units

Grouting of the base plate is required on all BMP
units. The base plate should be leveled prior to
grouting. After grout has been applied, it must

Driver and Coupling

Drivers are normally shipped separately from the
gearbox and pump. When a splined
interconnecting shaft is supplied, this shaft must
be lubricated at each end with one tube (5cc) of
anti-fretting compound (Sundyne Part Number
MP01AA10).

channels that are to be filled with grout through
the access holes. The nuts on the foundation
bolts should not be tightened until the grout has
set for at least 48 hours.

be allowed to set for at least 48 hours before
tightening foundation bolts.

Also available are solid shaft drivers coupled to
the gearbox with a flexible coupling. Drivers are
to be installed and maintained in accordance
with the manufacturer’s instructions.

Flexible Coupling for LMV Units Without a Vertical Stand

Note: Lock out the driver starting switch

before working on the coupling.

When installing flexible couplings, use those
supplied by Sundyne to ensure tolerance of
parallel and angular misalignment, and axial end
float. Use flexible disc couplings or gear type
couplings if not using those supplied by
Sundyne. Coupling installation for turbine drivers
is identical to that for motors.

The gearbox coupling hub is normally mounted
at the factory. The driver coupling hub is
mounted on all motors and turbines shipped
directly from Sundyne.

Driver Coupling is Not Mounted

If your product is received without the driver
coupling hub mounted, use the following
procedure when installing Falk or Thomas
couplings:

1. Measure the distance from the top surface
of the gearbox hub, to the datum face of the

driver adapter. This measurement is referred
to as dimension ”X”.

Figure 2. Dimension X

2. Determine the end gap (the distance between
each coupling hub) for the size of coupling
provided. Refer to the Coupling
Specifications tables in the Specifications
section of this manual for specific
measurements.

3. Subtract the end gap value from dimension X
to determine the distance from the driver
datum face to the coupling hub face This
value is referred to as dimension “Y.”

7

Instruction and Operation Manual

Figure 3. Dimension Y

4. Scribe the shaft to show dimension Y.

5. Ensure that the coupling hub bore, keyways,
and shaft are clean and free from burrs. Also
determine that the key fits in the keyways.

6. Heat the hub in an oil bath or oven to
approximately 250

o

F (121oC), or more if
necessary, so that the hub will slide onto the
motor shaft.

7. Position the hub at the scribed line on the
shaft.

8. Tighten the hub key set screw.

Note: Before the hub is installed onto the

flexible disk couplings, verify that the
coupling bolts and washers can be
assembled (Figure 4) from the motor
side of the hub when installed. If these
pieces do not assemble, insert short
bolts with bevel washers into the hub
flange before fitting them onto the shaft.

Figure 4. Assembly of Coupling Bolts and

Washers

Lube System

The internal lube oil system engineered for
Sundyne pumps consist of four major
components. They are:

• Gearbox sump

• Main lube pump

• Oil heat exchanger

• Oil filter

Gearbox Heat Exchanger

The standard heat exchanger is a shell and tube
water-cooled type. For optimum performance,
the following conditions must be met.

• Cool water must be provided to the

tube side at a maximum pressure of
150 psig (11 kg/cm

• Coolant flow must be controlled to

maintain a gearbox sump temperature
between 140°F and 160°F (60°to
71°C).

2

)(103.5Kpag).

The lube pump intakes oil from the sump and
passes it internally to an externally mounted
manifold. The oil is then passed through the
heat exchanger, the filter, and back into the
gearbox. Once the oil is passed through the
bearings, it then drains back into the sump.

• Maximum recommended temperature

is 180°F (82°C).

The optional air-cooled heat exchanger should
be controlled to maintain the same gearbox
sump temperatures as above.

Mount the heat exchanger lower than the oil
filter to prevent air pockets in the lube oil lines at
start up. Air pockets can cause oil starvation at
the bearings.

8

Instruction and Operation Manual

Note: The heat exchanger installation is a

Sundyne assembly and should not be
rearranged. The heat exchanger is
NEVER mounted higher than the filter.

Oil Manifolds

There are two standard oil manifold
configurations. MA01AA78 for units without heat
exchangers and MA01AA79 for units with heat
exchangers. For units purchased prior to 1991,
the standard manifold is MA01AA01.

Figure 5. Heat Exchanger Manifolds

MA01AA78 (left), MA01AA79 (Center),

MA01AA01 (right).

Figure 6. Heat Exchanger Mounting for

MA01AA01 (units prior to 1991)

The MA01AA01 Model requires a 1/4" socket­head pipe plug in the filter manifold when using
the gearbox heat exchanger. The plug must be
removed when the heat exchanger is not being
used.

Remote Heat Exchanger

All air-cooled heat exchangers as well as some
large water-cooled heat exchangers must be
mounted away from the gearbox.

Note: Interconnecting piping is the

purchaser's responsibility unless the
piping is included with packaged units.

Gearbox Sump

The gearbox sump holds approximately seven
U.S. quarts (6.6 liters) of oil, not including the oil
contained within the auxiliary piping and heat
exchanger. The oil level must always be
maintained as recommended by Sundyne.

Note: Sundyne recommends that the oil level

must be within ¼” of top of the round
sight glass when the machine is static
(refer to the mark labeled “MAX”).When
the pump is in operation,the level will
be approximately ¼” below the MAX
level, with bubbles filling the rest of the
glass. Do not overfill the gearbox.

All connecting piping, including fittings, must not
exceed 20' (6m). The minimum requirement of
all piping is 5/8" (16mm) inner diameter (I.D.)
tubing or piping. If pipe lengths exceed 20' (6m),
then the pipe diameter must be increased
accordingly.

Overfilling will cause overheating/
excessive foaming.

Gearbox Sump Heater (optional)

When gearbox oil temperature falls below –20

o

(-29

C) it becomes too viscous for proper lube
pump operation. A sump heater is required
when these conditions may exist. Two types of
sump heaters are recommended for these
conditions - electric or steam.

o

F

9

Instruction and Operation Manual

SundGard® Oil Filter

The specially designed oil filter is rated for 3
microns at a beta ratio of 200.

®

Note: Oil filters other than Sundgard

filters will void the Sundyne warranty.

-OEM

Main Lube Pump and Lube Oil Priming Kit

Note: Use the auxiliary lube oil priming pump

to circulate oil around the heater when
the main drive motor is not running.

The main lube pump is a positive displacement
gear type pump directly driven by the input shaft.

A pre-lube system is required on some pumps.
The kit consists of:

• Motor driven positive displacement pump

• Check valve

• Gages

• Necessary piping

The gearbox oil and filter should be changed
every six months. Refer to the Lube Oil
Specifications in the Specification section of this
manual for more information.

To start the pump, allow the pre-lube pump to
run for approximately 30 seconds. There should
be a minimum indication of 7 psig (0.5kg/cm
maintained for 30 seconds before starting the
main driver. If the oil piping has been drained,
allow several minutes of operation to bleed
trapped air from the system.

Note: Only allow shut down of pre-lube pump

after main driver is at full operating
speed.

Figure 7. Lube Oil Schematic

2

)

10

Instruction and Operation Manual

Oil Pressure

During normal operation the gearbox internal
lube pump will maintain oil pressure between 15
and 60 psig (1.0 and 4.2kg/cm

2

). This oil

pressure can vary depending on the bearing

configuration and characteristics of the oil being
used.

Note: Never operate the gearbox with oil

pressure less than 10 psig (0.7 kg/cm2)

11

Instruction and Operation Manual

COMMISSIONING, START UP, &

OPERATION

Pre-Commissioning

Familiarizing Yourself with the Pump

Before servicing and starting up the Sundyne
pump, carefully review all information on the
product, including:

• Specification sheets

• Outline drawings

• Performance curves

• Instruction and related manuals

• System P&ID/Process Flow Diagram

(Clients equipment)

• Control system and operational
philosophy/narrative (Client)

Familiarize yourself with the pump configuration
before starting and operating the pump.

Driver Instructions

Carefully follow all installation and starting
instructions provided by the driver manufacturer.
This information is included in the final data
package.

Verifying Auxiliaries

Before start up, verify that the following
auxiliaries are met:

• Check the utility connections

• Verify that the auxiliary piping conforms to

Sundyne standards, as indicated in the
detailed specifications

Installing a Seal Environmental Control
System

Install a system to control the seal environment.
Also, verify that port 1 is properly vented.

If required, install drain piping overhead to
ensure that the environment operates under
normal conditions. For more information,
contact Sundyne Corporation.

Checking Driver Rotation

If the driver is coupled, un-couple; then verify
that the direction of the driver rotates in the
same direction as the arrow stamped or cast on
the pump casing.

If the driver is splined, check the direction of the
motor fan.

Piping Connections

Verify that the following bolted or threaded
connections are tight:

• Pump flange bolts

• Seal environment piping and port

connections

• Cooling water connections to heat
exchanger (if applicable)

• Gearbox oil drain plug

• Pump case drain plug

• Verify all switch and instrument

connections

• Verify that all switch and instrument
settings are set to normal operating
standards

• Calibrate all measurement equipment,
such as flow meters, ampere meters, and
pressure meters, etc.

12

Instruction and Operation Manual

Pre-Start Up

Pressurizing the Fluid Loop

Pressurize the double seal buffer loop or
external seal flush, if applicable, prior to
admitting fluid into the pump casing.

Servicing the Gearbox

Fill the gearbox with lube oil up to a quarter inch
(¼) or 6 mm from the top of the oil level sight
glass.

Note: Prior to using lube oil, verify that it

conforms to acceptable lube oil
specification standards. Refer to the
SPECIFICATIONS section in this
manual for more information.

Under normal operation, the lube oil level will
lower about a quarter inch more than when idle.
Additionally bubbles will appear at the top of the
sight glass.

Operating Conditions

Note: Sundyne recommends that gearbox

lube oil be changed at least every six
months.

For requirement information about priming the
lube oil system, refer to the start-up section in
this manual.

Auxiliary Lube Pump

If your pump includes an auxiliary lubrication
pump, unlock the electrical circuit and move it to
the “hand” position. Check for oil leaks and
recheck the oil level.

Setting the Valves

To set the pump to the designated operating
point, start the pump with the suction valve in
the open position while throttling the discharge
valve.

Verifying Operating Conditions

Verify the following parameters against the
specifications on the specification sheet:

• Suction pressure

• Suction temperature

• Discharge pressure

• Total head

• Flow rate

• Power consumption

• Specific gravity

• Viscosity

• Net Positive Suction Head (NPSH)

The status of these conditions will significantly
alter performance of the pump if they are not in
accordance with the specification sheet.

Check with your Sundyne representative if the
operation conditions of your pump must run
under different parameters than indicated by the
specifications on the specification sheet.

Adjusting the Cooling Flow

If your model pump includes an installed heat
exchanger for the gearbox, adjust the cooling
flow to keep the temperature of the gearbox
sump at 140°-160°F (60°-71°C). Maximum
recommended temperature is 180ºF (82ºC).

13

Instruction and Operation Manual

Installation and Start-Up Checklist

Note: Lock out all switch gears, including main driver, auxiliary lubrication system and instrumentation

before working on this equipment.

This checklist is NOT intended to be inclusive. You must read and follow: instruction manuals, outline

drawings, specification sheets and curves for this equipment during installation, commissioning, and
operation. Your total satisfaction is our goal. Please call with any questions or comments. Be sure to have
the unit serial number that is imprinted on the gearbox nameplate, and request “Sundyne Field Service”.

 Is all the information underlined above readily available?

 Are the following bolted/threaded connections tight?

• Pump flange bolts?

• Seal environment piping and port connections?

• Cooling water connections to heat exchanger(s)(if applicable)?

• Gearbox oil drain plug?

• Pump case drain plug?

 There are two types of connections between the motor and gearbox; a splined shaft or a

coupling. For splined connections, the splined shaft must be lubricated with the supplied spline
grease and the two o-rings installed prior to mounting the motor. It is recommended that the input
shaft be rotated by hand prior to mounting the motor. If the unit has a coupling, be sure the
coupling gap is correct and bolting between coupling halves is tight. This instruction manual
contains coupling set-up information. It is not necessary to align the coupling for run-out or
flatness as this is controlled by the rabbet fits on the gearbox and coupling adaptor.

 Is a check valve installed in the discharge line?

 Is port 1 open to atmosphere or piped to safety drain or flare or vent header? (Back pressure

must not exceed 5 psig). Sundyne recommends the installation of a check valve in the flare piping
to prevent backflow.

Note: A drip leg must be used if the port 1 connection rises from the seal housing.

 Is the diffuser cavity vent open? (Plug must be removed.)

Note: Process fluid may accumulate causing a potentially hazardous situation if diffuser cavity is not

properly vented.

 Are all other seal system ports identified and connected according to the outline drawings?

 Is gearbox filled to within ¼” (6.35mm) of the top of the sight glass with the approved oil and the

breather fitting installed? Oil capacity is 7 quarts (6.6 liters). Is the needle valve on the gearbox
pressure gauge open? Removal of the vent plug below the fill/vent fitting will speed filling.

 Has the oil filter, heat exchanger, and related piping been filled with oil (primed)?

 Do process conditions, suction pressure, suction temperature, discharge header pressure, and

specific gravity agree with specification sheet information? DO NOT test the pump on water

unless it is designed for water. Check with your representative or Sundyne Corporation if you
must test on a different fluid than shown on the specification sheet.

 If you have auxiliary lubrication pump, unlock the electrical circuit and start it in the “hand”

position. Check for oil leaks and recheck the oil level. If the process suction pressure exceeds
460 psig (32.3 kg/cm2g), the auxiliary lube pump should be running prior to and anytime the
suction is pressurized.

14

Instruction and Operation Manual



Prior to starting the unit, have you opened the suction valve fully and discharge throttled to allow
design flow, typically 40-50% open? Check the control valve to be sure it is functional. Inspect the
case drain, ports, and flanges for leaks. Has the pump been vented through port 6? Open both
supply and return valves supplying cooling water to the gearbox heat exchanger. Check suction
pressure to be sure it agrees with the specification sheet.

 Unlock the main driver circuit and bump the motor. Rotation is CCW as viewed from the top end

of the motor. Is rotation correct? Once rotation is verified, run motor for 1 second on, 20 seconds
off. Do this several times until gearbox oil pressure gauge shows pressure, then start the main
driver. Oil pressure will be between 15-60 psig (1.1-4.2 kg/cm2g) depending on the type of
bearings in the gearbox. After commissioning, bumping the motor is not required.

 If pressure control is being used, throttle the discharge valve immediately after start-up. Does the

discharge pressure agree with the specification sheet? If flow control is being used, adjust the
valve until flow agrees with the design value listed on the specification sheet.

 Once the gearbox oil temperature has stabilized, adjust cooling water supply until the oil

temperature is 140-160°F (60-71°C) on units equipped with heat exchangers. Maximum
recommended temperature is 180°F (82°C).

 Listen for any unusual noises or pressure fluctuations.

Note: If you have any questions or concerns about these procedures or the information supplied,

please call your representative or Sundyne Corporation.

Start-Up Procedures

Perform the following tasks to start the Sundyne
pump.

1. Run-in of pump: If the pump is to be run
under conditions which are considerably
different from those conditions listed on the
spec sheet (such as a change in specific
gravity, suction pressure, flow rate, etc.) the
factory should be consulted to ensure that
the run-in conditions are compatible with the
pump.

2. Check to ensure that the driver has been
serviced per instructions provided by the
driver manufacturer.

3. Auxiliaries - Check utility connections; verify
that auxiliary piping is per Sundyne
drawings; verify switch and instrument
connections and set points; calibrate flow
instruments and other transmitters.

4. Flushing screens should be installed in all
field assembled piping connections.

5. Check the pump specification sheet and
outline drawings for seal environment
requirements. Be sure seal housing port
piping is properly connected. If double seals
are used, buffer fluid must be pressurized
before suction pressure is applied to the
pump. Port 1 must be open. Maximum
allowable back pressure on Port 1 is 5 psig
(0.35 kg/cm²). Refer to figure 1.

6. Check to ensure the diffuser cavity vent is
vented.

7. Fill the gearbox with oil.

Remove the gearbox fill-vent plug and the
filter-breather cap from the fill opening on
the gearbox. Fill gearbox within ¼ inch
(6.4 mm) from top of oil level sight glass with
lube oil, which conforms to the specification
in Table 6. Where applicable, operate
auxiliary lube pump to fill heat exchanger
and filter. Add oil as necessary through fill
fitting until oil level stabilizes in sight glass.
The gearbox alone requires approximately 7
quarts (6.6 liters). Replace the filter
breather cap on the fill-opening fitting and
replace the fill-vent plug. If an auxiliary lube
pump is not used, remove the plug on top of
the oil filter (item 924g) manifold and fill the
oil filter and the heat exchanger with oil
(Figure 6).

8. Prime the lube oil system

The following actions must occur at the time
of initial pump installation and following
every re-installation after maintenance that
required the draining/removal of the gearbox
lubricating fluid.

Verify that gearbox lube oil pressure will be
achieved by priming the lube oil system and
expelling all of the air that is potentially

15

Instruction and Operation Manual

trapped. Priming can be achieved by either
operating the (optional) auxiliary lube oil
priming pump or by jogging the main driver
connected to the gearbox (oil pressure
should be observed by the second or third

jog - each of 2-3 seconds duration).

Note: Jogging is required for initial installation

or following re-installation after
maintenance and re-filling of gearbox
lubricant. Units remaining idle should
be jogged once a month to prevent the
bearings from brinelling and to prevent
internal rusting.

Jogging is also used to verify proper
direction of rotation for the main driver.
Jogging is a prudent, conservative activity
that can be quite useful to ensure long
service life of the Sundyne high-speed
products by providing a fluid film of lubricant
on the surfaces of bearings and gears.

After priming the lube oil system, check the
oil level in the gearbox sump, and add oil as
necessary.

Note: Never start the pump against a closed

discharge valve. Always check to
ensure that the discharge valve is
partially open

After priming the lube oil system as defined
above, the pump can now be routinely
started without the need of jogging. This
would include switching of main/stand-by
units, start-up of idle reserve units, start-up
of emergency units, etc. Non-operating

units should be started/used every 9-12
months on an alternating basis.

9. If an auxiliary lube system is installed, it
should be used in the following manner.

a) At the initial startup or after changing the

lube oil, run the pump for several
minutes to work any trapped air out of
the piping. Adjust the relief valve on the
auxiliary pump to provide 25 psi (1.76

2

kg/cm

b) The auxiliary system is intended to

provide oil before starting the main
driver. It should run for a minimum of 5
seconds at minimum pressure before
the main driver is started. Pressure
switches and time delays can be used if
automatic start sequences are desired.

c) After the start of the main driver, oil

pressure will be supplied by the main
lube pump inside the gearbox. An
increase in oil pressure should be
observed. Shut down the auxiliary pump
within two minutes of the main driver
start.

10. Adjust the heat exchanger cooling flow to
regulate the gearbox sump temperature
between 140
Approximately one hour may be required to
stabilize the temperature.

Maximum recommended temperature is
180ºF (82ºC).

) oil pressure to the system.

o

and 160oF (60o and 71oC).

Controlling the Pump During Startup

To ensure control of the pump during start up,
follow the start up procedures for your desired
configuration.

Single Operation

Start the pump with the suction valve open while
throttling the discharge valve. This will ensure
that the pump will reach the design flow
operating point.

If the process fluid is near its vapor pressure,
open the supply vessel seal cavity vent so that
the pump can fill with liquid.

16

Parallel Operation

To prevent back-flow, place check valves in the
discharge piping of each pump.

Note: Sundyne recommends installing

separate bypass loops around each
pump for additional operational
flexibility.

1. Start the first unit as described in the Single

Operation instructions.

2. Start the second unit with the bypass valve

set to maintain the flow above minimum flow.

Instruction and Operation Manual

A

y

2

A

3. Open the discharge valve on the second unit
so that the design flow of both units is
maintained.

Note: Do not operate the pumps at their peak

head capability.

Operation of Sundyne Pumps

Under normal operation, several factors must be
taken into consideration to ensure successful
pump operation. Experienced pump operators
will be aware of jeopardizing factors and their
effects.

Suction Conditions

Improper flow of liquid into the impeller is the
most common operational abuse of centrifugal
pumps. Two conditions must exist to prevent
turbulence at the eye of the impeller.

• Proper suction piping, see suction piping

section.

• Liquid reaching the impeller eye must

have enough vapor pressure to prevent
the fluid from flashing to a gas in the
impeller. If this condition occurs, it will
cause cavitation, which can damage the
impeller and inducer. When centrifugal
pumps cavitate the noise sounds like the
pump is “pumping gravel”. In high speed,
single stage pumps, this sound may not
be discernable. Cavitation can be
prevented by maintaining suction pressure
at a high enough level and suction
temperatures low enough to maintain Net
Positive Suction Head (NPSH) available
greater than Net Positive Suction Head
(NPSH

Minimum Flow Conditions

Vibration and noise will occur during operation of
centrifugal pumps if either of two conditions
exist:

• Internal flow separations

• Recirculation at low flow conditions

If the operator is noticing excessive noise or
vibration, operation must be suspended until the
cause is determined and corrected. Continued
use may cause damage to the pump.
Resonance in the discharge line can accentuate
noise, vibration, and damage to the pump,

) required by the pumps.

r

Sundyne recommends that separate flow
controls be used on each pump to provide a
lower minimum flow range than is achieved by
pressure control.

primarily when a control valve is located an
excessive distance downstream from the pump.

Entrained Gases

The head and capacity of centrifugal pumps will
be reduced by gas that is drawn in with the
liquid. Under normal operating conditions,
centrifugal pumps can tolerate up to 2% of gas
(by volume). Entrained gases can cause
damage to mechanical seals with the exception
of double seals. If you have entrained gas,
contact Sundyne for further instruction.

System Head Curve

The point of intersection between the system
curve and the pump characteristic curve
determines the flow or operation for the
centrifugal pump. For steady flow to occur, the
system curve must intersect the pump
characteristic curve at a significant angle. The
following diagram gives examples of satisfactory
and unsatisfactory angles of intersection.

Figure 8. Typical Operation

System (Head) Cur ve s

B

Good

HEAD

ngle of

Intersection

FLOW

Note: The curve for pump A has a significant

angle of intersection with system curves
D and E. The system curve D could
represent a system with the control
valve wide open while curve E could
represent the same system but with the
throttle valve closed to reduce flow from
flow 1 to flow 2. Pump curve B, on the
other hand, will provide only flow 2,
even with the control valve wide open

Valv e Partiall

E

1

D

Closed

Valve
Wide
Open

17

Instruction and Operation Manual

(curve D). When the control valve is
partially closed to create system curve
E, the curve E and lower pump curve B
are practically parallel. The lack of a
significant angle of intersection means
that the system is unstable, pump flow
is likely to fluctuate eratically and not
respond to control valve position.

Parallel Operation

Maximizing control is critical when operating
centrifugal pumps in parallel. One pump can
overpower the other in regards to head at a
lower total flow. If a simple, unrestricted manifold
connects two pumps at the discharge head, the
discharge head of one pump is imposed on the
other. All pumps will see the same discharge
head at a given time. This is demonstrated on
the following diagrams.

The characteristic curves of two pumps
designated A and B are demonstrated in the
Parallel Operation figure.

Since no two pumps will have exactly the same
performance, it is assumed that pump A
produces a slight amount more head than pump
B. The pumps are arranged with a common
manifold as shown in Parallel Units Common
Valve figure.

Figure 10. Parallel Units Common Valve

The pressure in the manifold is set at P
flow through pump A indicated as A

; the

1

on the

1

preceding curve. At the same time, the flow
through pump B is indicated as B

. However, if

1

the throttle valve is closed to cause the manifold
pressure P to rise to P
pump A and B are A

, then flows through

2

and B2 respectively. If the

2

throttle valve were closed even further, then
pump B would cease to flow entirely. Since
pump B would effectively be deadheaded, the
fluid in it would heat up and boil. During internal
boiling, it could encounter liquid slugging and
probable damage to the pump. Proper selection
of a control system can prevent this situation.

Figure 9. Parallel Operation

FLOW

18

Instruction and Operation Manual

MAINTENANCE

Disassembly of LMV-313

STEP 2

Install the anti-rotation device to prevent
impeller from spinning.

STEP 1

Remove the nuts from the pump casing
studs. Lift the gearbox and seal housing up
off of the pump casing. Remove o-rings 936B
and 936CB and backing ring 70B.

Note: Locking tools, part number TO01AK03

for splined or TO01AK02 for coupled
shafts, are available for purchase from
Sundyne Corporation.

STEP 3

Remove the inducer.

Note: All inducers have a left-handed thread.

When lifting, if the pump case and seal housing
are difficult to separate, use the three jacking
screws to break the seal.

19

Note: When working on a pump with a

tapered inducer, the inducer must be
removed before the diffuser can be
removed from the seal housing.

Instruction and Operation Manual

STEP 4

Remove the inducer housing, shim, and o­rings 936CA and 936C.

Note: When a tapered inducer is used, the

diffuser is bolted to the seal housing.
When a straight inducer is used, the
diffuser will remain in the pump case.

Removing the bolts from the inducer housing.

STEP 5

STEP 6

Remove the six diffuser mounting bolts.

Build stand shown, part number T-MT-215, is
available for purchase from Sundyne
Corporation.

STEP 7

Install 3/8” eyebolts into the diffuser for
lifting.

Remove the inducer stud and o-ring 936F.

STEP 8

Carefully lift the diffuser off the gearbox
housing.

20

Instruction and Operation Manual

STEP 9

Remove o-ring 936A from the diffuser cover.

Note: These instructions reflect a tandem seal

arrangement. If you have a single or
double seal arrangement, refer to the
seal arrangement drawings later in this
manual for differences.

STEP 10

STEP 12

Remove the impeller spacer and o-ring 936G.

STEP 13

Remove the lower seal rotating face and o­ring 936J.

Remove the impeller and o-ring 936G.

The impeller can be removed using two
screwdrivers to pry up gently on opposite sides.

STEP 11

Remove the diffuser cover and o-ring 936E.

STEP 14

Remove the lower seal retaining bolts and
remove the lower process seal.

21

Instruction and Operation Manual

STEP 15

Remove the lower sleeve and o-ring 936J.

STEP 16

Remove the upper rotating face and o-ring
936J.

STEP 18

Insert eyebolts into the seal housing for
lifting.

STEP 19

Lift off seal housing. Be careful not to
damage the upper process seal on the high­speed shaft. Remove two 936H o-rings.

STEP 17

Remove seal housing bolts.

22

Remove upper seal.

Instruction and Operation Manual

STEP 20

Remove upper sleeve and o-ring 936K.

STEP 21

Remove the gearbox seal retaining bolts.

STEP 23

Remove the thermal barrier gasket.

STEP 24

Remove the gearbox seal rotating face.

STEP 22

Remove the gearbox seal and o-ring 936P.

23

Use extraction tools to remove the rotating face.

STEP 25

If no maintenance rack is available, loosen
the nuts rather than the bolts.

Instruction and Operation Manual

STEP 26

Remove the alignment bolts.

Note: Alignment bolts are close tolerance and

must be removed first or damage may
occur to the aluminum housing. Damage
to the alignment bores can cause
increased vibration and reduce gearbox
life.

STEP 28

Remove the anti-rotation device.

STEP 29

Remove fill and vent cap from gearbox.

STEP 27

Remove the ½” gearbox housing bolts.

STEP 30

Remove the fill and vent fitting.

Use a pipe wrench to remove the fitting.

24

Instruction and Operation Manual

STEP 31

Lift off the upper housing.

Note: If necessary, a screwdriver (use cloth to

protect the aluminum) can be used in the
slots to assist in breaking the seal
between housings.

STEP 33

Remove the input shaft.

STEP 34

Remove the bearing plate. Turn over for high
speed bearing removal.

STEP 32

Tip the idler shaft out of the way by lifting it
up and out of the lower bearing race and tilt
it towards the outside of the gearbox.

25

Instruction and Operation Manual

STEP 35

Remove the upper journal bearing and thrust
washer, if supplied, from the bearing plate.

STEP 36

Remove the idler shaft and high-speed shaft
assembly by lifting straight up.

STEP 38

Remove the lower journal bearing.

STEP 39

Remove the lube pump from the bearing
plate. The longer two of the four bolts are
used to hold the pump in the bearing plate
and the shorter bolts hold the lube pump
together.

STEP 37

Remove the tilt pad bearing.

26

STEP 40

Remove all lube jets and plugs, flush with
solvent, then blow out all the lube passages.

Instruction and Operation Manual

Inspection and Cleaning and Repair

Inspecting All Bearings

Replace bearings if:

• They have been in operation for over
three years

• If rotation is not smooth

• If outside of inside diameters are worn

Note: Only replace bearings with

manufacturer’s approved replacement
bearings. Non-approved bearings may
jeopardize the mechanical integrity of
the gearbox and pump.

Note: Refer to the Specifications section of

the manual for all bearing and shaft
clearances.

High Speed Shaft

Inspect the High Speed Shaft at the thrust
washer and journal bearing contact areas.
Replace the shaft and gear assembly if:

• Outside diameter of shaft is less than

1.4960 inches

• If the shaft has bearing or washer
materials on it’s surface

new washer. If the tilting pads do not fit freely, or
if they show signs of metal pick-up or
overheating, install a new bearing assembly.

Note: The radial “free play” of the high speed

shaft can be as high as 0.011 inch
(0.28mm) due to the clearance in the
bearings. It is not possible to check for
shaft straightness while the gearbox is
assembled. To check straightness, the
shaft must be placed in V-blocks, on it’s
bearing journals, and have runout
measured at the impeller fit (0.0018
inch TIR max).

Gearbox Mechanical Seal

Carefully inspect the seals for abrasive particles,
excessive seal face wear and any binding of the
seal face washer.

Replace or rebuild a faulty mechanical seal.
Seals may be rebuilt by replacing the seal face
washer, wedge rings, o-ring, and springs. A seal
repair kit is available.

Replace or lap the seal rotating face if the wear
track is rough or worn to a depth greater than 2
helium light bands.

A combined total of 0.010 inch (0.25mm)
maximum may be removed from the surfaces of
the pump and gearbox seal rotating faces.
Excess material removal will result in incorrect
seal face loading causing increased seal
leakage.

Remove any high spots on the end surfaces of
the lower shaft sleeve and impeller hub to insure
that the seal rotating face will not be distorted by
clamping force of the impeller bolt.

Reassemble the seal, throttle bushing, if used
seal housing, and impeller using an o-ring repair
kit. All o-rings that were disturbed by
disassembly should be replaced. During
reassembly, carefully check the torque values
listed in Table 7.

• Shows signs of overheating

• Shows wear to a depth greater than

0.001” (0.03mm)

Inspect upper and lower thrust washers or tilting
pad bearing assembly. If metal is smeared into
radial lube grooves of the washer face, install a

27

The impeller may rub on the diffuser cover plate
(15) until o-rings (936D and 936E) are
compressed by tightening hex nuts (914A).
Check the gearbox input shaft for freedom of
rotation after the pump is assembled and all
bolts are tightened per Table 7.

Instruction and Operation Manual

Upper Shaft Sleeve

Ensure that there are no high spots on the end
surfaces of the shaft sleeve or the impeller hub.
High spots will distort the seal rotating face due
to the clamping force of the impeller bolt. Ensure
that shaft sleeve end faces are parallel within

0.0003” (0.0076mm).

Bearing and Shaft Clearances

Figure 11. Bearing and Shaft Clearances

28

Instruction and Operation Manual

Pump Assembly and Clearance Adjustments

General Clearance Adjustment
Information

If disassembly of the wet-end is only for minor
maintenance such as a seal change, the original
shims should still be satisfactory. If any of the
major components listed below have been
replaced, changes to the original shimming will
be necessary.

• Gearbox

• Seal housing

• Diffuser

• Pump case

Impeller Spacer Adjustments

Before proceeding, the gearbox should be fully
assembled. The seal housing (30) and the
thermal barrier gasket (87A) must be installed
also. The diffuser cover (15) and process
mechanical seals as well as all associated o­rings can be temporarily left off during this
procedure.

Position the exit flow path from the impeller
within the opening of the diffuser annulus by
changing the thickness of the impeller spacer
(158C). Make this adjustment with the thrust of
the output shaft away from the gearbox.

Position the gearbox vertically with the output
shaft up. Install the following components of the
rotating assembly as well as the original impeller
spacer (158C).

• Shaft sleeves

• Rotating faces

• Impeller

There are two methods for setting the impeller to
the diffuser. Both methods require the use of a
shaft loading tool. See Shaft Loading Tool
Installation figure for how to install the shaft
loading tool.

place the parts within tolerances for the position
specified in the Impeller Shim Adjustment figure.

Note: Some diffuser openings are much wider

than the impeller openings. The primary
tolerance is the 0.025 ± .020 inch
(0.635 ± 0.508 mm) setting. The
diffuser opening must not overlap the
impeller opening.

Method 2

If the proper tools for measuring dimensions of
“A” and “B” are not available, use this method.
Measure the dimensions for “C” and “D” and
transfer these dimensions to a template. Do this
by scribing position marks to indicate the diffuser
opening. Place the straight edge of the template
on the seal housing and visually adjust the
impeller opening to the scribe marks. To do this
it is necessary to leave the diffuser cover (15)
off. Otherwise it is necessary to put a notch in
the template. An example of a transfer template
can be seen in the Shaft Loading Tool
Installation figure.

After completing either of the two methods,
remove the shaft loading tool. Assemble the
following parts:

• Process mechanical seals

• O-rings

• Shaft sleeves

• Seal rotating faces

• Diffuser cover

• Impeller spacer

• Impeller

Inducer Housing Shim Adjustments

Reinstall the bolt from the shaft loading tool and
torque the impeller.

Remove the inducer housing (6) and shims
(158F) from the diffuser (13).

Method 1

Use a dial indicator and surface gauge to
measure dimensions “A” and “B” from the
Impeller Shim Adjustment figure. Record the
readings. Use a depth micrometer to measure
dimensions “C” and “D”. Compare “B” to “C” and
“A” to “D”. Select the spacer thickness that will

Place the diffuser (13) over the impeller allowing
it to rest on the seal housing surface. Make sure
that both surfaces are clean. If using a tapered
inducer, install o-ring (936A) and the diffuser
screws (906F). When using a straight inducer,
leave out o-ring (936A) temporarily.

29

Instruction and Operation Manual

Insert the inducer housing (6) into the diffuser
bore without the o-ring (936CA) and shims
(158F) installed. Install the crossover bar from
the shaft loading tool and torque the nut for the
proper preload. Allow firm contact between the
end of the inducer housing and the impeller. The
result should be a gap between the inducer
housing and the diffuser where the shims are
normally installed.

Measure the gap between the inducer housing
flange and the diffuser using feeler gauges.
Take readings from three points around the
flange. Average those three readings. Record
the average reading and add 0.010 inch (0.254
mm) to the gap reading. The result should
indicate the shim thickness to produce the
proper clearance. Confirm this number by
comparing it against the number in the Inducer
Housing Shim Adjustments figure.

The shim (158F) is made with 0.002 or 0.003­inch (0.051 or 0.076 mm) thick laminations. Peel

off any layers that are not needed. Remove the
inducer housing (6) and install the shim (158F),
o-ring (936CA), and inducer housing (6) in the
diffuser.

Note: Proper shimming of the inducer housing

is critical. If not enough clearance is
allowed the result will be impeller
rubbing and hardware damage. If too
much clearance is allowed a loss of
performance will occur. A larger
clearance is preferred to hardware
damage.

Remove the shaft loading tool. If using a tapered
inducer, install and torque the inducer. For
proper torque values see the Torque Values
table. If using a straight inducer, remove the
diffuser assembly and install it in the pump case.
Install the inducer and continue with the pump
assembly.

Figure 12. Impeller Shim Adjustment

30

Instruction and Operation Manual

Figure 13. Shaft Loading Tool Installation

Figure 14. Inducer Housing Adjustment

31

Instruction and Operation Manual

Figure 15. Inducer Housing Shim Adjustment

32

Instruction and Operation Manual

Procedure for Checking the High-Speed Shaft Endplay and

Shoulder Height

The endplay of the shaft MUST be measured if

any of the following parts have been replaced:

• High speed shaft assembly

• Thrust washer

• Output housing

• Journal bearing

• Bearing plate

Sundyne recommends checking endplay during
any re-assembly.

To obtain correct shaft endplay shim spacers
must be installed as required.

Note: All parts must be dry and free of oil.

The output shaft assembly (A130) is dynamically
balanced. Under most circumstances it does not
require disassembly. Inspect the journal
bearings and thrust runners for discoloration
from overheating, also check for contact on the
gear teeth.

Shims (158) are used beneath both high speed
bearing assemblies (151A and B). The shims
function is to provide both axial float (end play)
and insure proper shaft extension. Both must be
checked with the output shaft thrust towards the
impeller. Dry bearings are required to make the
adjustments. Any presence of oil under the
thrust surfaces will produce inaccurate readings.

Step 1

Install the bearings (151A & B) without the shims
in the output housing and bearing plate.

Step 2

Place the output housing on a raised surface
with the open side up. Leave room for the input
shaft to project through.

Step 3

Install the output shaft (A130) into the output
housing bearing.

Step 4

Install the bearing plate. Be careful not to
damage the thrust washer (155B). Leave out the

idler shaft assembly (A140), gearbox gasket
(105), and the o-ring (936T) from the gearbox
split line. Install both of the alignment bolts
(909C). Do not install the gearbox input housing.
Clamp the bearing plate to the lower housing
using “C” clamps or short bolts. This will insure a
metal-to-metal fit.

Step 5

Turn the assembly over so the output shaft is
extended upward. Load the output shaft toward
the impeller (against bearing 151A). Measure
the shaft extension dimension. A standard depth
micrometer can be used if the gearbox seal
rotating face (51D) is installed on the shaft.
Determine the amount of shim to be used under
bearing (151A). Shaft shoulder height should be

1.203” ± .005”.

Step 6

Install a dial indicator to measure the shaft axial
float. This can be done inside or outside the
gearbox. Take the total float reading and
subtract the amount of shim to be used under
the bearing (151A), then subtract 0.015 inch
(desired end-float) from the total. The sum is the
required thickness of the shim to be placed
under the other bearing (151B).

Step 7

Shims supplied by Sundyne Corporation usually
come in thicknesses of 0.005” to 0.010”. Select
the shims that best obtain the shaft extension
and end float dimensions.

Note: The axial float should be 0.015 ± .002

inches. It is preferred to have slightly
more end float than slightly less end
float.

Step 8

Install the shims. Check both dimensions.
Repeat the procedure if necessary.

Step 9

After proper shimming has been completed the
gearbox can be reassembled. Do this by
reversing the disassembly procedures.

33

Instruction and Operation Manual

Figure 16. Output Shaft Shim Adjustment

Note: Shims (158) are adjusted to obtain noted shaft end float and noted shaft extension. Shaft

extension must be checked with thrust in noted direction. Measurements are made with dry (no
oil) bearings.

Item No. Part Name QTY

101A

102

151A

151B

155A

158

Gearbox Output Housing

Gearbox Bearing Plate

Standard Capacity Tilt Pad Thrust Bearing/Journal Bearing

Journal Bearing

High Capacity Tilt Pad Thrust Bearing

Shims (As Required)

34

1

1

1

1

1

1

Instruction and Operation Manual

Assembly Clearance Data Sheet

CUSTOMER

SERIAL NUMBER

DATE

ASSEMBLER

Shim above high speed shaft SP01AA04

Item 158

Shim below high speed shaft SP01AA04

Item 158

High speed shaft end play

0.015” ± 0.002”

High speed shaft extension

1.203” ± 0.005”

MINIMUM ALLOWABLE IMPELLER LABYRINTH CLEARANCE

0.010 + 0.005"
` - 0.000"

Impeller shim - SP01AK01

Item 158C

Inducer housing shim - SH06AK06

Item 158D

Diffuser Gap Maximum – 0.002”

Impeller Alignment

35

Instruction and Operation Manual

Figure 17. Service Check Points

36

Instruction and Operation Manual

Specialty Tools

Overhauling the Sundyne LMV 313 pump in the
field requires a couple of specialty tools that are
not generally needed while overhauling other
Sundyne models. These specialty tools are
recommended in order to simplify the overhaul
procedure. These tools also provide more
consistency in the setting of the high speed shaft
loading and clearances. The following section
will provide details on manufacturing these tools
in the field as well as the use of these tools.

Shaft Loading Tool

The shaft loading tool is used to preload the
shaft against the lower thrust bearing with an
approximate 1000 pounds (453.6 kg) end load.
This removes slack from the bearing stack-up. It

also allows for more consistency in adjusting the
impeller and inducer housing shims. See the
following figures for details.

Pumps using the tapered inducer configuration
do not require tool items 6, 7, and 8. This is due
to the diffuser in these machines being bolted to
the seal housing. To apply preload to the shaft,
lay tool detail 1 across the open end of the
inducer housing. (Refer to figure 19.)

It is vital that the mating surfaces of the diffuser
and the seal housing are clean. Any high spots
caused by nicks and dings must be removed so
that errors will not be introduced during
shimming and reassembly.

Figure 18. Shaft Loading Tool

37

Instruction and Operation Manual

Figure 19. Shaft Loading Tool Details

Item Description Qty.

1

1 x 3 rectangle
bar stock or
1 x 3 inch channel
(steel)

2 Same as item 1 2

3

Tension bolt
(loads impeller
and rotating
assembly)

4 Flat washer ¾” 2

5 Nut ¾-10 UNC 1

6

Bolt ¾-10 UNC,
8” long min.
threaded full
length. (Holds
diffuser against
seal housing. Not
required with
vaned diffuser.)

7

Bolt ½-12 UNC,
2” long (not
required with
vaned diffuser).

1

1

2

2

8 Flat Washer ½” 2

38

Instruction and Operation Manual

Impeller Locking Tool

The impeller must be kept from rotating when
attempting to torque the inducer. The inducer
must have 85-90 ft-lbs of torque (116-123 N-m)
applied to it. The method of applying the torque
varies depending on whether the inducer is
straight or tapered.

Straight Inducer

A strap wrench or hose clamp can be used to
hold the impeller in place with a straight inducer.
Fasten the tool around the impellers outside
diameter and block it against rotation while the
inducer is being torqued. The diffuser and
inducer housing are then installed over the
inducer and impeller.

Tapered Inducer

The tapered inducer must be installed only after
the diffuser and inducer housing are in place. Do
not lock the impeller by inserting a rod thru the
diffuser discharge into the impeller. Risk of
damaging the hardware is likely using this
method. The correct method is to lock the input
shaft. See the Input Shaft Locking Tool figure for
details on the suggested tools for both the
splined and coupled shaft configurations. The 90
ft-lb (123 N-m) inducer torque multiplied by the
gearbox input/output will result in the torque at
the input shaft when the inducer is tightened.
This is usually 3 to 4 times the inducer torque
and cannot be held by hand.

Figure 20. Input Shaft Loading Tool

Segment from SH05AA0-8 Spline Shaft

c

Steel Plate 2” wide x ½” Thick

d

½” or ⅝” hole for bolt into “tee” slot or weld pin to plate

e

1½” diameter schedule 40 pipe

f

¼” Square Keystock (weld both ends)

g

(Note: The coupled input shaft is 1½” diameter and uses ⅜” square key.)

39

Instruction and Operation Manual

Falk Steelflex Type Coupling Specifications

Table1. Falk Steelflex Type Coupling Specifications

Size

40T10 0.062 in.

50T10 0.062 in.

60T10 0.062 in.

70T10 0.062 in.

80T10 0.062 in.

Minimum Normal Maximum

(1.57 mm)

(1.57 mm)

(1.57 mm)

(1.57 mm)

(1.57 mm)

Falk Double Gear Type Coupling Specifications

Table 2. Falk Double Gear Type Coupling Specifications

End Gap Falk Coupling

0.125 in.

(3.17 mm)

0.125 in.

(3.17 mm)

0.125 in.

(3.17 mm)

0.125 in.

(3.17 mm)

0.125 in.

(3.17 mm)

0.188 in.

(4.77 mm)

0.188 in.

(4.77 mm)

0.188 in.

(4.77 mm)

0.188 in.

(4.77 mm)

0.250 in.

(6.35 mm)

Cover Bolt

Torque

100 in-lb

(1.15 kg-m)

200 in-lb

(2.30 kg-m)

200 in-lb

(2.30 kg-m)

200 in-lb

(2.30 kg-m)

200 in-lb

(2.30 kg-m)

Falk

Coupling

Size

Minimum Normal Maximum Offset

15G 0.140 in.

(3.56 mm)

20G 0.140 in

(3.56 mm)

End Gap Operating Limits

Total Indicator

Reading

Angular

0.156 in.

(3.96 mm)

0.156 in.

(3.96 mm)

0.172 in.

(4.36 mm)

0.172 in.

(4.36 mm)

(Maximum)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

(Maximum)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

Bolt

Torque

280 in-lb

(3.22 kg-m)

420 in-lb

(4.83 kg-m)

40

Instruction and Operation Manual

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

Falk Double Gear Type-Vertical Specifications

Table 3. Falk Double Gear Type-Vertical Specifications

Falk Coupling

Size

15GL

15GV

20GL

20GV

Maximum

0.005 in.

0.127 mm

0.005 in.

0.127 mm

Total Indicator Limit

Offset

Thomas Type DBZ Coupling Specifications

Size

163 0.876 in.

Minimum Normal Maximum

Operating Limits

Bolt

Angular

Maximum

0.005 in.

0.127 mm

0.005 in.

0.127 mm

Torque

280 in-lb

3.22 kg-m

420 in-lb

4.83 kg-m

Table 4. Thomas Type DBZ Coupling Specifications

End Gap Thomas Coupling

0.938 in.

1.005 in.

Cover Bolt

Torque

156 in-lb

(22.24 mm)

201 0.876 in.

(22.24 mm)

226 1.126 in.

(28.59 mm)

263 1.219 in.

(30.97 mm)

301 1.406 in.

(35.72 mm)

(23.81 mm)

0.938 in.

(23.81mm)

1.188 in.

(30.18 mm)

1.313 in.

(33.35 mm)

1.500 in.

(38.10 mm)

(25.41 mm)

1.005 in.

(25.41 mm)

1.251 in.

(31.76 mm)

1.407 in.

(35.73 mm)

1.594 in.

(40.48 mm)

(1.80 kg-m)

300 in-lb

(3.46 kg-m)

516 in-lb

(5.95 kg-m)

756 in-lb

(8.72 kg-m)

1140 in-lb

(13.15 kg-m)

41

Instruction and Operation Manual

Thomas SN Spacer Type Vertical & Horizontal Coupling

Specifications

Table 5. Thomas SN Spacer Type Vertical & Horizontal Coupling Specifications

Thomas

Coupling

Size

Minimum Normal Maximum Offset

SN226 0.563 in.

(14.30 mm)

SN262 0.438 in.

(11.13 mm)

SN312 0.469 in.

(11.91 mm)

End Gap Operating Limits

Total Indicator

Reading

Angular

0.594 in.

(15.09 mm)

0.469 in.

(11.91 mm)

0.500 in.

(12.70 mm)

0.625 in.

(15.88 mm)

0.500 in

(12.70 mm)

0.531 in.

(13.49 mm)

(Maximum)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

0.005in.

(0.127 mm)

(Maximum)

0.005 in

(0.127 mm)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

Bolt

Torque

516 in-lb

(5.95 kg-m)

516 in-lb

(5.95 kg-m)

756 in-lb

(8.72 kg-m)

42

Instruction and Operation Manual

Gearbox Lube Oil Specifications

Table 6. Gearbox Lube Oil Specifications

Recommended Gearbox Lube Oil Specifications

API Gravity 28 – 37

Pour Point, °C (°F) -7 (20) max.

Flash Point, °C (°F) 204 (400) min.

Viscosity, cST at 40°C 28.8 to 35.2 (150/180 SSU @ 100°F)

Viscosity, CST at 100°C 5.2 (44 min. SSU @ 210°F

Viscosity, Index 95 minimum

ISO Viscosity Grade 32

Color, Maximum

ASTM D 1500 1 to 5

Neut.Number, Maximum 0.20

Rust Protection Pass

ASTM D 665, A & B

Demulsibility

ASTM D 1401

Minutes to 0 ml emulsion -

At 54°C (130°F) after 30 min. Pass

At 82°C (180°F) after 60 min. Pass

Foam Limits, ASTM D 892

Sequence 1 25/0 max.

Sequence 2 50/0 max.

Sequence 3 25/0 max.

Note: No other additives are recommended.

43

Instruction and Operation Manual

Gearbox and Pump Torque Values

Table 7. Gearbox and Pump Torque Values

Gearbox

Sundyne Standard Steel Screws & Bolts and NACE Compliant Steel Screws/Bolts (BG Material)

Torque Values

Item # Location Size English Metric

905H Oil Filter Manifold 3/8 - 16 x 1/2 22 - 25 ft-lbs 30 - 34 N-m

905L Gearbox Seal 1/4 - 20 x 1/2 75 - 80 in-lbs 8.5 - 9.0 N-m

905M, N Journal Bearings #10 - 24 x 1 35 - 40 in-lbs 4.0 - 4.5 N-m

905T Chemical Barrier Gasket 1/4 - 20 x 5/8 75 - 80 in-lbs 8.5 - 9.0 N-m

909B Gearbox Halves 1/2 - 13 x4 60 - 65 ft-lbs 81 - 88 N-m

909C Gearbox Halves, Alignment 5/8 - 18 x 4 17/64 60 - 65 ft lbs 81 - 88 N-m

906B Sight Glass #8 - 32 x 1/2 10 - 12 in-lbs 1.0 - 1.4 N-m

Pumps & Compressors*

Sundyne Standard Steel Screws and Bolts

Item # Location Size English Metric

3 Impeller Bolt/Inducer:

LMV/BMP-801, 802, 806, 322, 311, 331 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m

LMV/BMP-341, 346 1/2 - 20 65 - 70 ft-lbs 88 - 95 N-m

LMV-313, 343, BMP-338, 348 (High Flow) 3/4 - 10 85 - 90 ft-lbs 115-122 N-m

LMC/BMC 3X1P, 3X1F, 3X3, 3X6P, 3X7 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m

906D Diffuser Attaching Screws 1/4 - 20 95 - 102 in-lbs 11 - 11.5 N-m

905E Mechanical Seal No. Spacer 1/4 - 20 x 12 95 - 102 in-lbs 11 - 11.5 N-m

905F Throttle Bushing/Mechanical Seal 1/4 - 20 x 12 9 5- 102 in-lbs 11 - 11.5 N-m

905G Double Seal with Spacer 1/4 - 20 x 3/4 95 - 102 in-lbs 11 - 11.5 N-m

914A Case Nuts 3/4 - 10 250 - 275 ft-lbs 340 - 375 N-m

914A Case Nuts 7/8 - 9 300 - 330 ft-lbs 405 - 445 N-m

905A Seal Housing to Gearbox 3/8 - 16 x 1 3/4 35 - 40 ft-lbs 47 - 54 N-m

905P Separator 1/4 - 20 x 5/8 95 - 102 in-lbs 11 - 11.5 N-m

Pumps & Compressors

NACE Compliant Steel Screws / Bolts (BG Material)

Torque Values

Item # Location Size English Metric

3 Impeller Bolt/Inducer:

LMV/BMP-801, 802, 806, 322, 311, 331 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m

LMV/BMP-341, 346 1/2 - 20 65 - 70 ft-lbs 88 - 95 N-m

LMV-313, 343, BMP-338, 348 (High Flow) 3/4 - 10 85- 90 ft-lbs 115 - 122 N-m

LMC/BMC 3X1P, 3X1F, 3X3, 3X6P, 3X7 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m

906D Diffuser Attaching Screws 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m

905E Mechanical Seal No. Spacer 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m

905F Throttle Bushing/Mechanical Seal 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m

905G Double Seal with Spacer 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m

914A Case Nuts 3/4 - 10 160 - 200 ft-lbs 217 - 270 N-m

914A Case Nuts 7/8 - 9 225 - 245 ft-lbs 305 - 332 N-m

905A Seal Housing to Gearbox 3/8 - 16 x 1 3/4 27 - 30 ft-lbs 47 - 54 N-m

905P Separator 1/4 - 20 x 5/8 70 - 75 in-lbs 8.0 - 8.5 N-m

* When using Teflon® o-rings, allow 15 minutes between torquing for the Teflon® to cold flow. Repeat torquing until

there is no change in torque.

Torque Values

44

Instruction and Operation Manual

Reassembling the LMV-313

STEP 1

Install all lube jets.

Install all plugs and install the lube pump in
the bearing plate.

STEP 3

Install lower journal bearing.

Note: Torque to 28-31 in-lbs.

Step 4

Install tilting pad thrust bearing.

STEP 2

Insert shim under lower journal bearing.

45

STEP 5

Install high-speed shaft assembly dry.

Instruction and Operation Manual

STEP 6

Install upper thrust washer onto the upper
journal bearing.

Note: Use a small amount of petroleum jelly to

hold washer in place.

STEP 7

Install shim.

STEP 8

Install bearing plate onto the lower housing
without gasket or o-ring.

STEP 9

Use alignment bolts to align the bearing
plate.

Re-install the upper journal bearing into the
bearing plate.

Note: Torque hex head screws to 35-40 in-lbs.

STEP 10

Clamp bearing plate to the lower gearbox
housing.

Note: “C” clamps can be utilized to perform

this task. Be sure to protect the housing
faces from any clamping damage.

46

Instruction and Operation Manual

STEP 11

Inspect endplay of the high-speed shaft.

Note: Endplay must fall within these

tolerances, (.015” +/- .002”)

Note: For complete instructions for checking

endplay and shaft shoulder height see
the Procedure for Checking High­Speed Shaft End Play and Shoulder
Height in this manual.

STEP 13

Install idler shaft and high-speed shaft
assembly.

STEP 14

Install the bearing plate, gasket and o-ring.

STEP 12

With rotating face installed, check shaft
shoulder height using a depth micrometer.

Note: Tolerances for shaft shoulder height are

1.203 ± 0.005

Once the correct endplay is confirmed, install
the housing gasket and o-ring in the lower
housing. Pre-lubricate the shafts and bearings
from this point in assembly.

STEP 15

Install the input shaft.

47

Instruction and Operation Manual

STEP 16

Install upper gearbox housing.

STEP 17

Install the two alignment bolts, turning the
nuts but not the bolts. Then install the
remaining housing bolts.

STEP 19

Install the vent cap.

STEP 20

Install the anti-rotation tool.

STEP 18

Install the fill and vent fitting.

STEP 21

Install the gearbox seal rotating face,
gearbox seal, and o-ring 936P.

48

Instruction and Operation Manual

STEP 22

Install upper shaft sleeve and o-ring 936K.

Install o-ring 936J.

Note: If using Teflon or graphoil o-rings, do not

install any of the o-rings until all
measurements have been taken,

STEP 24

Install upper process seal and o-ring 936H
onto seal housing.

Note: Torque hex head screws to

95-102 in-lbs.

STEP 25

Install the seal housing.

Note: Before installing the seal housing insert

the bolts for the seal housing into holes
and temporarily install nuts on them to
hold in place. It is very difficult to insert
the bolts after the seal housing has
been installed onto the gearbox.

STEP 23

Install thermal barrier gasket.

Note: Torque seal housing bolts to 35-40 ft-

lbs.

49

Instruction and Operation Manual

STEP 26

Install upper process seal rotating face.

Note: Torque process seal hex head screws

to 95-102 in-lbs.

STEP 27

Install the lower process seal shaft sleeve.
Install two 936J o-rings, one on the top of the
sleeve and one on the bottom.

STEP 28

Install the lower process seal and 936H o­ring.

STEP 29

Install lower mating ring, o-ring 936G, and
impeller spacer 158C.

STEP 30

Install impeller o-ring 936G.

Note: Use petroleum jelly to hold the o-ring in

position.

50

Instruction and Operation Manual

STEP 31

Install the impeller and 936F o-ring.

Note: The diffuser cover is not installed for

this step.

STEP 32

Install the shaft-loading tool.

Note: Refer to the Specialty Tools section later

in this manual for additional information
on the shaft loading tool.

Apply anti-seize to the inducer stud.

Fully thread inducer stud into inducer
loading tool.

Note: Torque values are shown on the tool. 25

ft-lb for standard tilt pad thrust and 50 ft­lb for high thrust glacier bearings.

Note: Inducer stud is left hand thread.

Thread inducer stud and inducer loading tool
into shaft end.

51

Instruction and Operation Manual

Torque shaft loading tool.

STEP 33

Measure the diffuser opening using a depth
micrometer. Transfer these readings to a
template.

Note: An Assembly Clearance Data Sheet is

provided later in this manual to record
your measurements.

STEP 35

Remove the impeller and shaft loading tool
and install the diffuser cover and o-ring
936E.

STEP 36

Note: Refer to Pump Assembly and Clearance

Adjustments section later in this manual
for additional information.

STEP 34

Use measurement of diffuser to ensure that
the openings will line up with the openings in
the impeller by changing the impeller
shimming as necessary.

Install impeller and o-ring 936A.

STEP 37

Install eyebolts into the diffuser.

52

Instruction and Operation Manual

STEP 38

Install the diffuser onto the seal housing.

Note: Offset bolt pattern.

STEP 39

Install diffuser mounting bolts.

STEP 41

Install the inducer housing, shims, and
o-rings 936C and 936CA.

Note: Ensure that the inducer tool doesn't

rotate while torque is applied on the
loading tool.

STEP 42

Install shaft loading tool to fully extend the
shaft, torque the shaft and then loosen tool.

STEP 40

Install soft solder over the steps of the
impeller.

STEP 43

Remove the shaft loading tool and the
inducer housing. Measure the pieces of
solder to determine if the amount of gap is
within tolerances (0.010" +.005"/-.000").

53

Instruction and Operation Manual

STEP 44

Install the correct shims to maintain the
tolerance in the last step. Then install the
inducer housing and o-rings 936CA and
936C.

Note: Return to step 26 if using Teflon or

graphoil o-rings.

STEP 45

Fully thread inducer stud into inducer and
install inducer into inducer housing.

STEP 47

Install T-hooks for lifting the gearbox.

STEP 48

Lift gearbox up and position over the pump
case. Install o-rings 936B, 936CB, and
backing ring 70B.

Note: Torque inducer stud to

85-90 ft-lbs.

STEP 46

Rotate the gearbox.

STEP 49

Lower the gearbox onto pump casing.

Note: Before operating the pump, ensure that

54

the diffuser cavity vent is open.

Instruction and Operation Manual

TROUBLESHOOTING

Gearbox & Pump Diagnostics

Several system factors may affect the
performance of the pump. These factors are:

• Temperature

• Specific gravity

• Suction pressure

• Driver speed

• Flow rate

• Control characteristics

These factors as well as internal problems must
be considered when analyzing pump system
performance. The following table gives
diagnostic information that can be useful when
analyzing gearbox and pump performance
problems.

Table 8. Gearbox and Pump Diagnostics

Situation/Symptom Possible Cause Investigative/Corrective Action

No flow, no pressure at
start-up.

Pump not completely filled with liquid. Bleed all vapor or air from port 6.

Allow more cool-down time if pumping low
temperature fluid.

Check suction line for air leak if suction
pressure is lower than atmospheric.

NPSH actually lower than NPSH requirement listed on
specification sheet.

Suction line blocked – check suction screen
and valve.

Excessive pressure drop through suction
piping.

Flow restricted by vapor pockets in high points
of suction line.

Suction tank level or pressure too low.

Entrained air or vapor in pumped fluid.

NPSH reduced by presence of more volatile
fluid in process fluid.

Failure of drive component, such as interconnecting
shaft or impeller key, or item missing from assembly.

Reverse direction of rotation. Direction of driver shaft rotation must be as

Insufficient total head.

Flow too high. Check total head and flow rate against

Wrong direction of driver shaft rotation. (It is possible
for the pump to develop greater than 50 percent
design total head in this condition).

NPSH actually lower than NPSH requirement listed on
specification sheet.

Excess clearance at impeller face (applicable to high
flow models, 313/333/343/348.

Flow too low, causing overheating of fluid resulting in
internal boiling and unstable pump operation.

55

Disassemble and inspect.

shown by arrow on pump casing. Note: Impeller
and driver rotate in the same direction.

performance curve.

Direction of driver shaft rotation must be as
shown by arrow on pump casing. Note: Impeller
and driver rotate in the same direction.

Refer to solutions listed under “No flow, no
pressure at start-up”.

Disassemble and check for clearance.

Increase through-flow rate.

Bypass part of pump discharge to supply tank.

Instruction and Operation Manual

Situation/Symptom Possible Cause Investigative/Corrective Action

Insufficient total head
cont.

Diffuser discharge throat partially plugged or
impeller damaged by passage of a solid particle.

Clean these areas of all obstructions and restore
surfaces to a smooth polished finish free of all
corrosion pitting. Edge of diffuser throat must be
sharp.

Driver overloaded.

Corrosion and/or erosion of diffuser throat (may
also be accompanied by corrosion/ erosion of
diffuser and cover surface adjacent to impeller).

Excessive recirculation from discharge to inlet. Check flow through external plumbing.

Process fluid specific gravity or viscosity different
from values shown on specification sheet.

Driver speed too low. Check speed against value listed on

Pressure gauges or flow meters in error Calibrate instrumentation.

Fluid specific gravity or viscosity higher than values
listed on specification sheet.

Electrical failure in electric driver. Check circuit breaker heater size and setting.

If edge of throat is no longer sharp and smooth
or has opened in size, head-rise may be
reduced. Opening of the inlet area of the throat
will result in higher flow rate and horsepower
consumption. Corrosion/erosion of diffuser and
cover surfaces will result in a significant
horsepower increase.

Pump o-ring (936C) damaged or missing.

Integral centrifugal separator orifice worn.

Check actual viscosity and specific gravity at
operating temperature. Viscosity higher than five
centipoise will cause reduced head and flow and
increased power consumption.

specification sheet.

Check actual viscosity and specific gravity
against value listed on specification sheet.

Check voltage and voltage balance between
phases.

Current for each phase should be balanced
within three percent.

Excessive discharge
pressure pulsations.

Mechanical failure in driver, gearbox or pump. Remove driver and check for freedom of rotation,

Corrosion pitting on surface of diffuser cover or
diffuser, adjacent to impeller blades. Head rise is
also reduced by this condition.

Flow rate too low. Increase flow rate through pump. Add bypass to

Insufficient NPSH available. Refer to solution for insufficient NPSH under “No

Defective flow control valve. Check control valve.

correct spacing
of pump and gearbox shaft assemblies.

Remove fluid end and search for any mechanical
failure.

Remove gearbox oil level sight glass and inspect
bottom of sump for wear particles. Bearings are
probably not damaged if no wear particles are
present.

Disassemble pump and inspect. Rough or
pitted surfaces can cause friction losses which
will significantly increase horsepower
consumption. Clean these areas of all
obstruction and restore surfaces to a smooth
polished finish. Check diffuser throat area at
the inlet; erosion or corrosion resulting in
roughness or increased area will increase
horsepower consumption. Note: A larger throat
size than design will allow a higher flow and
horsepower for a given head rise.

suction tank if necessary.

flow, no pressure at startup,” above.

56

Instruction and Operation Manual

Situation/Symptom Possible Cause Investigative/Corrective Action

Change of gearbox oil
from normal color to
milky pink or yellow

Shaft sleeve rubs on
inside diameter of seal.

Excessive gearbox oil
consumption.

High gearbox
temperature.

Gearbox oil contaminated with water or process
fluid.

Gearbox journal bearing failure. Install replacement exchange gearbox or

Low speed shaft seal (115) leakage. Check drain port for leakage. Replace shaft

High speed shaft mechanical seal (60C) leakage. Check upper gearbox housing drain port for

Leakage through heat exchanger into cooling fluid. Pressure test heat exchanger and replace if

High oil level. Shut down the unit and check oil level. Excessive oil foaming.

Low gearbox temperature. Incorrect lubricant. Adjust coolant to heat exchanger, keeping oil

Heat exchanger fouled or coolant shut off.

Oil level too high.

Inspect gearbox heat exchanger for leakage.

Check for excessive pump seal leakage.

Inspect shaft sleeve o-rings.

Inspect that seal housing port 1 and other seal
drains are open for unrestricted seal leakage
flow.

repair gearbox as outlined under
“Maintenance”

seal if required.

leakage. Replace shaft seal if required.

required.

temperature above 140°F, 60°C.

Check coolant flow and/or clean heat
exchanger.

Check oil level and adjust.

57

Instruction and Operation Manual

g

Pump Mechanical Seal Diagnostics

The following table contains diagnostic
information that is applicable to single seal,

Repair procedures for mechanical seals are

listed in this manual under Maintenance
double seal, and tandem seal equipped units.
.

Table 9. Pump Mechanical Seal Diagnostics

Situation/Symptom Possible Cause Investigative/Corrective Action

Sudden increase in seal
leakage.

Severe cavitation or loss of suction causing
vibration and bouncing of seal face.

Seal icing on low temperature pumps or icing
when handling fluids which vaporize at a
temperature of less than +32°F (0°C) at
atmospheric pressure

Solid particles in seal cavity or seal spring area
(seal faces usually have rough scratched
appearance).

Correct pump suction condition causing
cavitation. Bleed vapor from seal cavity and
restart.

Install double seal if loss of suction cannot be
prevented.

Quench with compatible fluid which will not
freeze at pump temperature through seal drain
port 2 or 7 to prevent ice formation on
atmospheric side of seal during start-up and in
running condition.

Use purge of dry nitrogen gas through ports
2 or 7.

Install double or tandem seal if ice is caused by
water in process fluid or supply external seal
flush of compatible fluid which does not contain
water.

Inspect for clogged integral centrifugal separator
orifices. Clean orifices if necessary (plan 31 if so
equipped.)

Supply external clean seal flush or double seal if
particles cannot be removed by separator.

Sudden increase in seal
leakage
cont.

Seal stationary face spring action is rough and
sticky.

Worn or damaged seal. Disassemble seal and rebuild or replace per

Wear pattern on seal rotating faces not uniform. Lightly lap surfaces of shaft sleeve and impeller

Wear pattern on stationary face smooth but not
uniform.

Edges of stationary face chipped and seal face
worn. (Vapor flashing in seal cavity will cause
excessive wear and/or cracking of rotating face.)

Seal rotating face cracked or broken. May be
caused by damage at assembly or thermal shock
caused by seal running dry.

If parts are corroded, replace with parts made
from compatible materials.

If formation of solids causes sticky seal analyze
fluid properties. Use external seal flush or double
seal arrangement.

instructions in maintenance section.

hub which contact rotating seal face to remove
hi

h spots. Install new seal faces.

Lap flat or replace seal.

Install seal cavity bypass to suction tank.

Prevent loss of pump suction.

Supply cool seal flush.

Install double seal.

Prevent loss of pump suction or supply
continuous external seal flush.

Install double seal.

58

Instruction and Operation Manual

Situation/Symptom Possible Cause Investigative/Corrective Action

Chemical attack of seal faces, seal parts or
o-rings.

Investigate fluid properties and determine
suitable materials for replacement.

Excessive radial high speed shaft movement.

Bent high speed shaft or severe out-of-balance.

Damage to mechanical seal secondary seal
(Teflon® wedge or U-cup or elastomer o-ring).

Loose stack-up of high-speed shaft attaching
components.

Check high speed shaft journal bearings and
replace if necessary.

Check if damage exists on impeller and/or
inducer which will indicate that a large particle
went through the pump.

Deposits on the impeller/inducer causing
unbalance.

Check for erosion and/or corrosion attack.

Install seal flush or double seal arrangement.

Check for correct impeller bolt/inducer torque.

Check for cold flow of Teflon® o-rings.

59

Instruction and Operation Manual

DRAWINGS & PARTS LISTING

Mechanical Seals

Table 10. Mechanical Seals

Lower

Process

Seal

60A 60-B 60C Mechanical Seal

61A 61B 61C Retainer, Seal

62A* 62B* 62C* Seal Face Washer

63A* 63B N/A Seal Spring Backup

64A* 64B* 64C* Seal Retaining Ring

65A 65B* 65C* Seal Spring

68A* 68B* N/A Teflon Wedge

69A* 69B* 69C* Secondary may be “U”

*Seal Repair Kits are Available and contain all parts marked with

a single asterisk.

Item 60C to be used on gearbox only.

Item No.

Upper

Process

Seal

Description

Gearbox

Seal

Assembly

Ring

Cup or O-Ring

To maximize seal performance consult the parts list for
correct seal configuration. For additional information,
please contact your area representative or the Sundyne
factory direct.

60

Instruction and Operation Manual

1 ½” gas seal for upper tandem position on light

hydrocarbon service only

Gearbox Seal Only

61

Instruction and Operation Manual

Wet-End Components

Figure 21. Wet-End Components

*Used only with tapered inducer configuration.

c Vent must be open to atmosphere or to safety drain with no back pressure.

Item numbers can be cross-referenced to part numbers using parts list.

Note: Ensure that diffuser cavity vent (item 924B in the figure above) is open to atmosphere or to

safety drain with no back pressure. Failure to do so could result in serious injury or death.

62

Instruction and Operation Manual

Table 11. Wet-End Components

Item No. Part Name Qty. Item No. Part Name Qty.

1 Pump Housing 1 158C Impeller Spacer 1

2 Pump Impeller 1 158D Inducer Housing Shim AR

6 Inducer Housing, Alignment 1 905A Screw, Hex Head 4

9 Inducer 1 905G Screw, Hex Head 3

10 Impeller Stud 1 905L Screw, Hex Head 3

13 Diffuser Insert 1 906E Screw, Socket Head 4

14A Pin, Diffuser Alignment 1 906F* Screw, Socket Head 1

14B Pin, Housing Alignment 2 911 Stud, Pump Case 12

15 Diffuser Cover 1 916K Lock Washer 6

21B Throttle Bushing AR 916S Seal Washer 4

30 Seal Housing 1 924B Pipe Plug ½” NPT 5

50 Shaft Sleeve Slinger Assy. 1 924D Pipe Plug ¾” NPT 4

50A Shaft Sleeve AR 936A O-Ring Packing 1

50B Shaft Sleeve 1 936B O-Ring Packing 1

51A Seal Mating Ring AR 936C O-Ring Packing 1

51C Seal Mating Ring 1 936E O-Ring Packing 1

51D Seal Mating Ring

1 936F O-Ring Packing 1

(Gearbox)(Not Shown)

52 Seal Spacer 1 936G O-Ring Packing 2

60A Seal, Mechanical Lower 1 936H O-Ring Packing 2

60B Seal, Mechanical Upper

1 936J O-Ring Packing AR

(Not Shown)

60C Seal, Gearbox (Not Shown) 1 936K O-Ring Packing 2

70B Backing Ring 1 936P O-Ring Packing 1

87A Pump Spacer or Thermal

1 936CA O-Ring Packing 1

Barrier Gasket

154AA Lock Washer 4 936CB O-Ring Packing 1

Note: * Used only with tapered inducer option.

63

Instruction and Operation Manual

Gearbox Parts List

Table 12. Gearbox Parts List

Item

No.

51D Seal Rotating Face 1 158 Shim Spacers AR

60C Mechanical Seal 1 160 Lube Pump 1

98 Dust Cover 1 173 Tube (Sump) 1

101A Gearbox Housing (Output) 1 174A Lube Jet 1

101B Gearbox Housing (Input) 1 174B Lube Jet 1

102 Bearing Plate 1 174C Lube Jet 1

105 Housing Gasket 2 174D Lube Jet 1

110 Spline Connector 1 175 Relief Valve 1

115 Shaft Seal 1 180 Filter Manifold (Gearbox Lube Oil) 1

A120 Low Speed Shaft Assembly 1 185 Oil Filter 1

120 - Low Speed Shaft 1 186 Fill and Vent Fitting 1

122A - Spur Gear (Low Speed) 1 191 Sight Glass 1

123A - Shaft Spacer (Low Speed) 1 193C Pressure Gauge 1

125C - Ball Bearing 1 905H Hex Head Cap Screw 2

125D - Ball Bearing 1 905L Hex Head Cap Screw 3

A130 High Speed Shaft Assembly 1 905M Hex Head Cap Screw 3

130 - High Speed Shaft 1 905N Hex Head Cap Screw 3

132B - Pinion Gear (High Speed) 1 905BU Hex Head Cap Screw 3

133B - Thrust Runner 1 909B Bolt 7

133C - Thrust Runner 1 909C Bolt (Alignment) 2

A140 Idler Shaft Assembly 1 914E Hex Nut 7

140 - Idler Shaft 1 914F Hex Nut 2

50C - Journal Sleeve 1 916D Washer 4

934B - Retaining Ring 1 916H Washer 14

122C - Spur Gear (Idler) 1 916J Washer (Alignment) 4

123B - Shaft Spacer (Idler) 1 916K Washer 3

123C - Shaft Spacer (Idler) 1 918D Pin 1

125A - Ball Bearing 1 920A Key 1

125B - Ball Bearing 1 920B Key 1

151A Journal Bearing or Tilting Pad, Journal & Thrust

Bearing Assembly (Lower)

151B Journal Bearing or Tilting Pad, Journal & Thrust

Bearing Assembly (Upper)

154C Washer 3 924E Pipe Plug 1

154D Lock Washer (Lower) 3 924K Pipe Plug 1

154E Lock Washer (Upper) 3 936M O-ring Packing 2

154A Thrust Bearing Tilt Pad (Lower) (Required with

Journal Bearing)

155B Thrust Bearing Tilt Pad (Upper) (Required with

Journal Bearing)

936T O-ring Packing 2

947A Elbow 1

Part Name

Item

Qty.

1 920C Key 1

1 920D Key 1

1 936N O-ring Packing 2

1 936P O-ring Packing 1

No.

Part Name

Qty.

64

Instruction and Operation Manual

Figure 22. Gearbox Components

65

Instruction and Operation Manual

Figure 23. Pump Nomenclature

66

Instruction and Operation Manual

Figure 24. Exploded View

67

Instruction and Operation Manual

Shaft Assemblies

Figure 25. Shaft Assemblies

68

Instruction and Operation Manual

Chemical Barrier Gasket

Figure 26. Chemical Barrier Gasket

Item No. Part Name Qty.

106 Chemical Barrier Gasket 1

107 Seal Spacer 1

905T Hex Head Cap Screw 3

916V Seal Washer 3

69

Instruction and Operation Manual

Single Seal Arrangement and Parts

Figure 27. Single Seal Arrangement

70

Instruction and Operation Manual

Table 13. Single Seal Arrangement

Item No. Part Name Qty. Item No. Part Name Qty.

21B Throttle Bushing (Upper) 1 62C - Seal Face Washer 1

50 Slinger Sleeve Assembly 1 64C - Seal Retaining Ring 1

51A Seal Rotating Face 1 65C - Seal Spring 8

51D Seal Rotating Face (Gearbox) 1 69C - O-ring Packing 1

52 Seal Spacer (as required) 1 905E Hex Head Cap Screw 3

60A Mechanical Seal (Lower) 1 905F Hex Head Cap Screw 3

61A - Retainer & Drive Sleeve

Assembly

62A - Seal Face Washer 1 916A Washer 3

63A - Seal Spring Backup Disc 1 916B Washer 3

64A - Seal Retaining Ring 1 916K Washer 3

65A - Seal Spring 6 936H O-ring Packing 2

68A - Seal Wedge Ring 1 936J O-ring Packing 1

60C Mechanical Seal (Gearbox) 1 936K O-ring Packing 1

61C - Retainer & Drive Sleeve

Assembly

1 905L Hex Head Cap Screw 3

1 936P O-ring Packing 1

71

Instruction and Operation Manual

Double Seal Arrangement and Parts

Figure 28. Double Seal Arrangement

72

Instruction and Operation Manual

Table 14. Double Seal Arrangement

Item No. Part Name Qty. Item No. Part Name Qty.

50A Shaft Sleeve (Lower) 1 68B - Seal Wedge Ring 1

50B Shaft Sleeve (Upper) 1 60C Mechanical Seal (Gearbox) 1

51C Seal Rotating Face 1 61C - Retainer & Drive Sleeve

Assembly

51D Seal Rotating Face (Gearbox) 1 62C - Seal Face Washer 1

52 Seal Spacer 1 64C - Seal Retaining Ring 1

60A Mechanical Seal (Lower) 1 65C - Seal Spring 8

61A - Retainer & Drive Sleeve

Assembly

62A - Seal Face Washer 1 905F Hex Head Cap Screw 3

63A - Seal Spring Backup Disc 1 905G Hex Head Cap Screw 3

64A - Seal Retaining Ring 1 905L Hex Head Cap Screw 3

65A - Seal Spring 6 916A Washer 3

68A - Seal Wedge Ring 1 916B Washer 3

60B Mechanical Seal (Upper) 1 916K Washer 3

61B - Retainer & Drive Sleeve

Assembly

62B - Seal Face Washer 1 936J O-ring Packing 2

63B - Seal Spring Backup Disc 1 936K O-ring Packing 1

1 69C - O-ring Packing 1

1 936H O-ring Packing 2

1

64B - Seal Retaining Ring 1 936P O-ring Packing 1

65B - Seal Spring 8

73

Instruction and Operation Manual

Tandem Seal Arrangement and Parts

Figure 29. Tandem Seal Arrangement

74

Instruction and Operation Manual

Table 15. Tandem Seal Arrangement

Item No. Part Name Qty. Item No. Part Name Qty.

50A Shaft Sleeve (Lower) 1 62B - Seal Face Washer 1

50B Shaft Sleeve (Upper) 1 65B - Garter Spring 1

51A Seal Rotating Face 1 68B - Backing Ring 2

51C Seal Rotating Face 1 69B - O-ring Packing 1

51D Seal Rotating Face (Gearbox) 1 60C Mechanical Seal (Gearbox) 1

52 Seal Spacer 1 61C - Retainer & Drive Sleeve

Assembly

60A Mechanical Seal (Lower) 1 62C - Seal Face Washer 1

61A - Retainer & Drive Sleeve

Assembly

62A - Seal Face Washer 1 65C - Seal Spring 8

63A - Seal Spring Backup Disc 1 69C - O-ring Packing 1

64A - Seal Retaining Ring 1 905E Hex Head Cap Screw 3

65A - Seal Spring 6 905F Hex Head Cap Screw 3

68A - Seal Wedge Ring 1 905L Hex Head Cap Screw 3

60B Mechanical Seal (Upper) 1 916A Washer 3

61B - Retainer & Drive Sleeve

Assembly

62B - Seal Face Washer 1 916K Washer 3

63B - Seal Spring Backup Disc 1 936H O-ring Packing 2

64B - Seal Retaining Ring 1 936J O-ring Packing 3

65B - Seal Spring 8 936K O-ring Packing 1

1 64C - Seal Retaining Ring 1

1 916B Washer 3

1

60B Mechanical Seal (Gas Seal) 1 936P O-ring Packing 1

61B - Seal Retainer 1

75

Instruction and Operation Manual

Assembly Clearance Data Sheet, 35
Assembly of Coupling Bolts and Washers

Figure, 8
Auxiliaries, 12
Auxiliary Lube Pump, 13
Bearing and Shaft Clearances, 28
BMP Units, 7
Check Driver Rotation, 12
Check Operating Procedures, 13
Checking High-Speed Shaft Endplay and

Shoulder Height, 33
Chemical Barrier Gasket, 69
Chemical Use, 2
COMMISSIONING, START UP& OPERATION,

12
Controlling the Pump During Startup, 16
Diffuser Cavity Vent, 5
Dimension X Figure, 7
Dimension Y Figure, 8
Disassembly of LMV-313, 19
Double Seal Arrangement and Parts, 72
DRAWINGS & PARTS LISTING, 60
Driver and Coupling, 7
Driver Instructions, 12
Electrical Safety, 2
Entrained Gases, 17
Environmental Control System, 12
Equipment and Safety, 1
Exploded View Figure, 67
Explosion/Fire Hazard, 2
Falk Double Gear Type Specifications, 40
Falk Double Gear Type-Vertical Specifications,

41
Falk Steelflex Type Specifications, 40
Fall Protection, 2
Flexible Coupling for LMV Units Without a

Vertical Stand, 7
Gearbox & Pump Diagnostics, 55
Gearbox and Pump Torque Values, 44
Gearbox Components Figure, 65
Gearbox Heat Exchanger, 8
Gearbox Lube Oil Specifications, 43
Gearbox Mechanical Seal, 27
Gearbox Parts List, 64
Gearbox Servicing, 13
Gearbox Sump, 9
General Clearance Adjustment Information, 29
Heat Exchanger, 13
Heat Exchanger Manifolds Figure, 9
Heat Exchanger Mounting Figure, 9
High Speed Shaft, 27
Impeller Locking Tool, 39
Impeller Shim Adjustment Figure, 30
Impeller Spacer Adjustments, 29
Inducer Housing Adjustment Figure, 31
Inducer Housing Shim Adjustment Figure, 32
Inducer Housing Shim Adjustments, 29

Input Shaft Loading Tool Figure, 39
Inspecting All Bearings, 27
Inspection, 3
Inspection and Cleaning and Repair, 27
INSTALLATION, 5
Installation and Start-Up Checklist, 14
ISO 9001, 1
Liquid Buffer System, 6
Lube Oil Schematic Figure, 10
Lube System, 8
Machine Familiarization, 12
Main Lube Pump and Lube Oil Priming Kit, 10
Maintenance, 19
Mechanical Seals, 60
Minimum Flow Conditions, 17
Mounting Vertical Units with Stands (LMV), 7
Mounting Vertical Units Without Stands, 6
Oil Manifolds, 9
Oil Pressure, 11
Operating Conditions, 13
Operation of Sundyne Pumps, 17

Output Shaft Shim Adjustment, 34

Parallel Operation, 16, 18
Parallel Operation Figure, 18
Parallel Units Common Valve Figure, 18
Personal Protective Equipment, 2
Piping Connections, 12
Pre-Commissioning, 12
Pressurizing Fluid Loop, 13
Pre-Start Up, 13
Preventative Machine Guards, 2
Pump Assembly and Clearance Adjustments, 29
Pump Mechanical Seal Diagnostics, 58
Pump Nomenclature Figure, 66
Reassembling the LMV-313, 45
Remote Heat Exchanger, 9
Seal Environmental Control System, 6
Seal Housing Port Identification Figure, 6
Service Check Points Figure, 36
Setting Pump Valves, 13
Shaft Assemblies, 68
Shaft Assemblies Figure, 68
Shaft Loading Tool Details Figure, 38
Shaft Loading Tool Figure, 37
Shaft Loading Tool Installation Figure, 31
Single Operation, 16
Single Seal Arrangement and Parts, 70
Specialty Tools, 37
Start-Up Procedures, 15
Storing Your Pump Long-Term, 3
Storing Your Pump Short-Term, 3
Suction and Discharge Piping, 5
Suction Conditions, 17
Sundyne Centrifugal Pumps, 4
Sungard® Oil Filter, 10
System Head Curve, 17
Tandem Seal Arrangement and Parts, 74

76

Instruction and Operation Manual

Testing Equipment, 2
Text Symbols, 1
Thomas SN Spacer Type-Vertical & Horizontal

Specifications, 42
Thomas Type DBZ Specifications, 41
TRANSPORT AND STORAGE, 3

Troubleshooting, 55
Typical Operation Figure, 17
Upper Shaft Sleeve, 28
Using Forklifts, 2
Wet-End Components, 62

77

14845 W. 64th Avenue • Arvada, Colorado 80007 USA • [phone] • FAX: [phone] • www.sundyne.com

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