Pentair BERKELEY 4BSD User manual

6192 0310
OWNER’S MANUAL
End-Suction Solids-Handling Pumps
4BSD, 5BSD, 6BSD, and 8BSD
© 2014 Pentair Ltd. All Rights Reserved. BE888 (02/28/14)
293 WRIGHT STREET, DELAVAN, WI 53115 WWW.BERkELEyPumPS.COm
PH: 888-782-7483

2
LOSS OR DAMAGE IN TRANSIT
PUMP/MOTOR IDENTIFICATION
Carefully record all of the following data from your pump/motor nameplate. It will aid in obtaining the correct replacement
parts for your pump. In addition to the nameplate, the pump serial number is also stamped on the discharge flange.
Pump:
Serial Number ______________________________________________________________________________________
Size _________________________________________ Model # ____________________________________________
GPM ________________________________________ Head___________________________________________(feet)
BHP: ________________________________________ RPM: ______________________________________________
Pump _______________________________________ Weight _________________________________________ (lbs.)
Motor:
Horsepower ________________________________________________________________________________________
Serial Number ______________________________________________________________________________________
Motor Frame _______________________________________________________________________________________
Full Load Speed ____________________________________________________________________________________
Full Load Amps _____________________________________________________________________________________
Phase/Hz/Volts __________________________ / ________________________ /_____________________________
Motor Weight _______________________________________________________________________________________
Motor Identification Number ___________________________________________________________________________
Date Placed in Service _______________________________________________________________________________
Immediately upon receipt, a complete inspection and
accounting against the packing list should be made of all
major components, and accompanying boxes or pallets.
All material is shipped F.O.B. our factory, or our vendor’s
shipping point unless optional contractual arrangements are
made. Under these terms, any claims for loss or damage
in transit should be immediately directed to the delivering
freight carrier. Berkeley will assist the customer in receiving
fair compensation, but assumes no responsibility to mediate
such claims. This policy includes shipments wherein
Berkeley pays freight costs as part of the sales terms.
If there is any indication of oil leakage from the motor oil
chamber, advise the factory immediately and request
instructions for proper handling.

3
TABLE OF CONTENTS
LOSS OR DAMAGE IN TRANSIT.................................................................................................2
PUMP/MOTOR IDENTIFICATION.................................................................................................2
WARRANTY...................................................................................................................................4
PRESTART-UP AND START-UP CHECKLIST ............................................................................5
SAFETY INSTRUCTIONS .............................................................................................................6
INTRODUCTION ............................................................................................................................6
INSTALLATION .............................................................................................................................7
OPERATION ..................................................................................................................................8
TROUBLESHOOTING .................................................................................................................10
PREVENTIVE MAINTENANCE ...................................................................................................12
CORRECTIVE MAINTENANCE ..................................................................................................13
WEAR RINGS ..............................................................................................................................15
COUPLING REMOVAL AND INSTALLATION ...........................................................................16
MECHANICAL SEALS ................................................................................................................16
TECHNICAL DATA......................................................................................................................17
Congratulations! You are the new owner of the finest
pump commercially available. If you give it the proper care
as outlined and recommended by this manual, it will provide
you with reliable service and long life.
NOTICE: Read this complete manual and manuals for all
component equipment before assembly or installation
is started. These manuals supply adequate instructions
for the installation, operation and maintenance of your
pump. Failure or neglect to properly install, operate
or maintain your pump may result in personal injury,
property damage or damage to the pump. Keep the
manuals near the pump for future reference.
This manual supplies general guidance ONLY for Berkeley
Pump BSD Series solids-handling pumps. If your operating
conditions ever change, always consult with the factory
for reapplication. Always refer to the manuals provided
by manufacturers of the accessory equipment for their
separate instructions. Variations exist in both the equipment
used with these pumps and in the particular installation
of the pump and driver. If there are questions regarding
the pump or its application which are not covered in this
manual, please contact the factory as follows:
Berkeley
293 Wright Street
Delavan, WI 53115
To obtain additional data on hydraulics and pump selection
and operation, we suggest you purchase. “Hydraulic
Institute Standards” from the Hydraulic Institute, 9 Sylvan
Way, Parsippany, NJ 07054-3802.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause cancer,
birth defects or other reproductive harm.
6154 0210
Figure 1: Typical Installation

4
Limited Warranty
BERKELEY warrants to the original consumer purchaser (“Purchaser” or “You”) of the products listed below, that they will be
free from defects in material and workmanship for the Warranty Period shown below.
Product Warranty Period
Water Systems:
Water Systems Products — jet pumps, small centrifugal pumps, submersible pumps and
related accessories
whichever occurs first:
12 months from date of original installation, or
18 months from date of manufacture
Pro-Source™ Composite Tanks 5 years from date of original installation
Pro-Source™ Steel Pressure Tanks 5 years from date of original installation
Pro-Source™ Epoxy-Lined Tanks 3 years from date of original installation
Sump/Sewage/Effluent Products 12 months from date of original installation, or
18 months from date of manufacture
Agricultural/Commercial:
Centrifugals – close-coupled motor drive, frame mount, SAE mount, engine drive, VMS, SSCX,
SSHM, solids handling, submersible solids handling
12 months from date of original installation, or
24 months from date of manufacture
Submersible Turbines, 6” diameter and larger 12 months from date of original installation, or
24 months from date of manufacture
Our limited warranty will not apply to any product that, in our sole judgement, has been subject to negligence, misapplication,
improper installation, or improper maintenance. Without limiting the foregoing, operating a three phase motor with single
phase power through a phase converter will void the warranty. Note also that three phase motors must be protected by three-
leg, ambient compensated, extra-quick trip overload relays of the recommended size or the warranty is void.
Your only remedy, and BERKELEY’s only duty, is that BERKELEY repair or replace defective products (at BERKELEY’s choice). You
must pay all labor and shipping charges associated with this warranty and must request warranty service through the installing
dealer as soon as a problem is discovered. No request for service will be accepted if received after the Warranty Period has
expired. This warranty is not transferable.
BERKELEY SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL, OR CONTINGENT DAMAGES WHATSOEVER.
THE FOREGOING LIMITED WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED
WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. THE FOREGOING LIMITED WARRANTIES SHALL NOT EXTEND BEYOND THE DURATION
PROVIDED HEREIN.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on the duration of an
implied warranty, so the above limitations or exclusions may not apply to You. This warranty gives You specific legal rights and
You may also have other rights which vary from state to state.
This Limited Warranty is effective June 1, 2011 and replaces all undated warranties and warranties dated before June 1, 2011.
In the U.S.: BERKELEY, 293 Wright St., Delavan, WI 53115
In Canada: 269 Trillium Dr., Kitchener, Ontario N2G 4W5

5
PUMP/MOTOR
PRESTART-UP AND START-UP CHECKLIST
Contractor ________________________________________ Pump Serial Number ________________________________
Project Name______________________________________ Pump Model Number ________________________________
Date of Shipment___________________________________ Motor Serial Number ________________________________
Procedure Yes No N/A Comments
1. Shipment
Was there any damage in transit? List) _________________________
Were all items received? (List) _________________________
2. Storage
Has equipment been protected from the elements? _________________________
Was equipment subject to flooding?
Have storage instructions been followed? _________________________
3. Installation
Were retaining fasteners, used in shipping, removed prior to installation? _________________________
Is grouting under base or properly compacted? _________________________
Is grouting of the non-shrink type? _ ________________________
Have proper anchor bolts been used? _________________________
Have the bolts been properly tightened? _________________________
Have both the suction and discharge been checked for pipe strain? _________________________
Are lube lines and seal water lines properly installed? _________________________
Are accessory items, RTD’s, bearing temp detectors, vibration _________________________
sensors, etc. mounted and properly installed? _________________________
Are lube lines purged of air and lubricant added (pump and driver)? _________________________
Are all safety guards in place? _________________________
Have impellers been checked for proper clearance? _________________________
4. Alignment
Has the alignment of driver to pump been checked? _________________________
Have indicator readings been taken? (List) _________________________
5. Rotation
Has the rotation of the drives been checked for correctness? _________________________
Has the coupling been turned to assure free rotation of pump and motor? _________________________
6. System
Has the system been checked to insure that it is free of foreign matter
and purged of air which could be damaging to the pump? _________________________
Is liquid available to the pump? _________________________
Has assurance been obtained from responsible parties that all piping
is secure and that the routing of flow has been established and
is correct? _________________________
7. Start-Up
Has flow been established? Flow rate:______________ GPM _________________________
Have gauge readings been taken? Suction pressure:___________PSI _________________________
Discharge pressure:_________
PSI
Is excessive vibration present? _________________________
Is bearing operating temperature excessive? _________________________
8. Safety _________________________
Have all safety labels been read and understood? _________________________
Name _________________________________________ Date __________________

6
READ AND FOLLOW SAFETY
INSTRUCTIONS!
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for one of
the following signal words and be alert to the potential for
personal injury.
warns about hazards that will cause serious
personal injury, death or major property
damage if not avoided.
warns about hazards that could cause
serious personal injury, death or major property damage if
not avoided.
warns about hazards that could cause minor
personal injury or property damage if not avoided.
NOTICE addresses practices not related to personal injury.
The installation, use and operation of this type of equipment
is affected by various Federal, State and Local Laws, and
the regulations concerning OSHA. Compliance with such
laws relating to the proper installation and safe operation
of this type of equipment is the responsibility of the
equipment Owner and all necessary steps should be taken
by the Owner to assure compliance with such laws before
operating the equipment.
Risk of serious eye injury from flying
chips, foreign matter on the pump, etc. Wear protective
eye glasses while working on this equipment.
Risk of sudden and unexpected starts.
Disconnect power and verify that pump cannot start
before servicing or working on equipment. If your
installation uses automatic starting equipment, the pump
unit may start at any time without warning. Proper
precautions should be taken to avoid injury as a result of
automatic starting of the equipment.
NOTICE: This product has been designed specifically for
operation in water or sewage. Consult the factory before
using it with other liquids.
Risk of puncture wounds and health
hazards from sharp objects. Do not try to clean the
pump with bare hands. Always wear heavy puncture
resistant gloves when cleaning the pump. The pumped
material may contain items that may present health hazards
such as needles and other sharp objects.
Before attempting to service this pump:
1. Familiarize yourself with this manual.
2. Disconnect or lock out the power source to ensure the
pump will not start. Confirm power source disconnection
with appropriate electrical test equipment.
3. Close the discharge valve, and if present, the suction
valve.
After the pump has been installed, make certain that the
pump and all piping connections are tight and are properly
supported prior to start-up and operation.
Burn hazard. Certain procedures in
disassembly and assembly require that parts be heated to
high temperatures. Heated parts can cause severe burns.
Wear heat resistant gloves when handling heated parts.
Risk of crush injuries if pump is dropped.
The pump is heavy; use appropriate lifting gear if you
must raise the pump. Take all normal precautions for
the weights involved (400 – 1700 lbs.).
Risk of electrical shock and unexpected
starts. Do not attempt to clean the pump until electrical
power has been disconnected (and locked out, if possible)
and it has been verified that the pump cannot start.
INTRODUCTION
General
The Berkeley BSD Series pumps consist of several
components. The following is a list of those major parts
(or component assemblies) and a brief description of their
design and function.
Impeller
The impeller is a solids-handling type of one piece
construction, single suction, enclosed radial flow design
with well-rounded leading vanes and tapered toward the
trailing edge for a circular flow pattern. Waterways through
the impeller have extremely smooth contours, free of sharp
corners, so as to minimize rags or stringy, fibrous material
from catching or clogging. The impeller is balanced and
secured to the shaft by means of a bolt, impeller washer and
key. The arrangement is such that the impeller cannot be
loosened from torque in either forward or reverse rotation.
Volute
The volute is matched to the impeller and made of close-
grained cast iron. The volute is of one-piece circular
constant flow, equalizing pressure design with smooth fluid
passages large enough to pass any size solid that can
pass through the impeller and has a flanged suction and
discharge.
Fronthead
The pump fronthead bolts to the volute and forms the inlet
to the pump.
Backhead
Cast as a separate piece, the backhead houses the sealing
box which is designed to accept standard mechanical seals
without requiring re-machining.
Frame/Bearing/Shaft
Bearing frame is machined for accurate and permanent
bearing alignment and houses the bearing/shaft assembly.
The shaft is accurately machined along its entire length
and precision ground at bearing locations. A renewable
shaft sleeve protects the shaft where it passes through the
sealing box area.
Base
Fabricated steel base supports the pump and driver and is
designed with large access openings to facilitate grouting.
Coupling Guards
All pumps are furnished with coupling guards.
Location and Handling
The pump should be installed as near to the fluid as
possible so a short direct suction pipe can be used to keep
suction losses to a minimum. If possible, locate the pump
so fluid will flow to the suction opening by gravity. Discharge
piping should be direct and with as few elbows and fittings
as possible.

7
Pump and driver should be located in an area that will
permit periodic inspection and maintenance. Head and
access room should be provided and all units should be
installed in a dry location with adequate drainage.
Foundation
Pump foundations should have a level surface and be of
sufficient mass to prevent vibration and form a permanent
rigid support. The most satisfactory foundations are
concrete with anchor bolts of adequate size imbedded in the
foundation in pipe sleeves with an inside diameter
2-1/2 times larger than the bolt diameter which will allow for
final accurate positioning of the unit. Recommended anchor
bolt design is available from the factory.
INSTALLATION
General
Crushing hazard if pump drops. Use
appropriate lifting equipment to raise the pump. Do not try to
pick up the complete unit by the driver eye bolts or a pump
shaft eyebolt. The bolts may fail and drop the pump.
NOTICE: Pump and driver alignment should be checked
throughout the piping and grouting procedures. Once piping
connections have been made and grouting completed,
alignment corrections are difficult.
Grouting
When alignment is correct, the unit should be grouted using
a high grade non-shrinking grout. The base is designed to
be completely filled with grout.
NOTICE: Damaging vibration may result if the baseplate is
not solidly in contact with the grout bed.
Do not fill the anchor bolt pipe sleeves with grout.
If leveling devices are used, make sure they are not
imbedded in grout. Provide access in the grout to the
leveling devices (if used) so that they can be backed off or
removed after the grout has cured.
Allow the grout to fully cure. Back off leveling nuts (if used)
and remove shims and/or wedges. Firmly tighten the
foundation bolts so the base is solidly against the grout
bed. All pockets and/or holes left by removal of leveling
devices are to be filled with grout. Recheck alignment
before connecting the piping.
Piping
NOTICE: All piping connections must be made with the pipe
in a free supported state, and without the need to apply
vertical or side pressure to obtain alignment of the piping
with the pump flange.
All piping should be independently supported near the
pump so the pipe strain will not be transmitted to the pump
casing. Weight of the pipe and contained liquid must be
considered in support design. Suction and discharge
piping should be one or two sizes larger than the pump
suction and discharge sizes, especially where piping is of
considerable length. Flexible joints installed in the piping
must be equipped with tension rods to absorb piping axial
thrust.
Suction pipe must be airtight and sloped upward to
the pump flange to avoid air pockets which will impair
satisfactory pump operation. Discharge pipe should be as
direct as possible with a minimum of valves to reduce pipe
friction losses.
A check valve and closing valve should be installed in the
discharge line and a closing valve in the suction line. The
check valve, between the pump and closing valve, protects
the pump from water hammer and prevents reverse rotation
in the event of power failure. Closing valves are used in
priming, starting and when the pump is shut down. Pumps
must never be throttled by use of a valve in the suction line.
Auxiliary Piping Connections
In addition to primary piping connections, your pump may
require connections to the baseplate drain, discharge
pressure gauges or mechanical seals. All these connections
should now be installed. (Refer to Mechanical Seal section
of this manual.)
NOTICE: For satisfactory pump operation and life, auxiliary
pipe lines must be kept clean.
Rotation
Before connecting the motor to the pump, bump start the
motor and verify that rotation is in the proper direction.
Correct pump rotation is indicated by a directional arrow on
the pump casing.
Vibration and Noise Levels
After installation is complete and the pump is put into normal
service, a baseline measurement of noise and vibration
levels should be made for future reference. Periodic checks
should be made, as changes in either of these could
indicate problems. Early detection can save expensive
repairs and downtime. Refer to “Troubleshooting” for simple
causes and remedies.
Vibration and noise level measurements should be made
with the equipment in its normal operating mode, with no
unusual background noise present.
Leveling of the Pump
Lower the unit onto the foundation and position the base so
the anchor bolts are aligned in the middle of the holes in the
base. Disconnect the coupling halves.
Set the base on metal shims or metal wedges placed
directly under the part of the base carrying the greatest
weight, and spaced close enough to give uniform support
and stability.
Adjust the metal shims or wedges until the shaft of the
pump and driver are level. Make sure that all shims or
wedges fit firmly between the foundation and the base.
If leveling nuts are installed on the anchor bolts and are
used for alignment, follow the same procedure as with
shims or wedges. Support the base with additional shims or
wedges if necessary. Make sure that all nuts and shims are
in firm contact with the base.
Tighten the foundation bolts snugly, but not too firmly, and
recheck the shafts for being level before grouting. Motor
and pump shafts should also be in close alignment prior to
grouting. If not in close alignment, determine the cause for
misalignment and correct. Refer to the Grouting section.
NOTICE: Pump and driver alignment should be checked
throughout the piping and grouting procedures. Once piping
connections have been made and grouting completed,
alignment corrections are difficult.
Coarse Coupling Alignment
Risk of entrapment by rotating couplings.
Install guards before starting the pump. Check safety
codes, and always install protective guard or shield as
required by the various federal, state and local laws and the

8
regulations concerning OSHA.
The final coupling alignment must be made after the piping
has been connected. Realign as required. If sufficient
adjustment is not achieved, piping may have to be
disconnected to properly align the coupling. Reconnect the
piping and recheck coupling alignment.
A flexible coupling must not be used to compensate for
misalignment resulting from poor installation or temperature
changes.
Pumps may be supplied with one of several different types
of commercial couplings. Refer to coupling drawings
and alignment tables in this manual and/or the coupling
manufacturer’s installation and alignment instructions which
may be supplied with the pump.
Fine Alignment
• Angularandparallelmisalignmentofthecouplingmaybe
corrected simultaneously. Maintain a separation between
coupling halves, per manufacturer’s specifications, to
avoid preloading of pump and motor bearings.
• Checkandaccountforindicatorsag.
• Clampdialindicatorstothepumpandmotorshaftas
shown above.
• Startwithangularalignmentandfinishcheckwithparallel
alignment.
• Rotateboththeshaftandcouplingtogetherbyhand.Note
the total indicated runout shown on indicator “A”. The
maximum allowable angular misalignment is 1 degree.
Limits of reading on indicator “A” at various distances from
shaft centerline are shown in Table (above).
• Continuetorotatebothshaftsbyhandandnotetherunout
shown on indicator “B”. The maximum allow-able total
indicated runout is .005 inches. Should either angular or
parallel misalignment exceed the value shown, shift or
shim the motor until mis-alignment is within the allowable
limits shown. Do not move pump unless absolutely
necessary. When shimming, be sure that all feet on the
pump and motor are equally supported to avoid strains on
the castings when the hold down bolts are tightened.
Periodic Alignment Check
Coupling misalignment can occur because of shifts in
grouting and/or foundations, or because of large objects
going through the pump causing shock loading conditions.
Coupling alignment should be checked periodically for
changes. Coupling misalignment can lead to or cause
bearing failure, coupling failure, shaft breakage and high
power consumption.
Refer to the coupling alignment tolerances found in
this manual or the coupling manufacturer’s alignment
instructions that may have been supplied with the pump.
V-Belt Drive
A pump coupled to its driver by means of V-belts and
sheaves may have been shipped separately from the drive
components. Refer to the driver manufacturer’s literature for
installation, operation and maintenance instructions.
OPERATION
General
This section contains applicable start-up and break-in
procedures for operation. Because variations may exist in a
particular installation between pumps, drivers and accessory
equipment, specific operating instructions are not within the
scope of this manual.
NOTICE: Before starting or operating the pump, read
this entire manual and especially comply with the
following instructions:
A. Before starting the pump:
1. Rotate the shaft by hand to assure all moving parts
are free.
2. Install guards around all exposed rotating parts.
3. Fill the casing and suction line with liquid. The pump
may be primed by using a priming system.
B. Observe all caution or danger tags attached to the
equipment.
C. Never run the pump dry as the close running fits within
the pump are lubricated by the liquid. Running dry may
result in pump seizure.
D. If excessive vibration or noise occurs during operation,
shut the pump down and consult the Troubleshooting
Guide or a Berkeley representative.
Wet Well Design
It is required that an evenly distributed flow of non-aerated
water be supplied to the pump suction. Improper wet well or
sump design, or insufficient suction pipe submergence can
result in vortexing which reduces the pump’s performance
and can cause severe damage to the pump.
Normal Operating Procedures
Monitor the following during running cycles:
A. Unit vibration or noise.
B. Driver lubrication.
C. Pump lubrication.
Check the following before normal start-up:
A. Driver lubrication (refer to driver operating manual)
B. General condition of all equipment.
Priming
The priming procedure is different for positive and negative
suction head systems and the following procedures should
be followed:
A. Positive suction head.
1. Open the vent on the highest point of the pump
casing.
2. Open all suction valves.
3. Allow liquid to flow from the vent hole until all air
bubbles are vented, then close the vent.
4. Pump is now primed.
B. Negative suction head.
1. Install the priming system on the vent at the highest
point of the pump casing.

9
2. Close the discharge valve.
3. Open the suction valve.
4. Start the priming system.
5. Run the priming system until a continuous stream
flows through the suction line, then close the vent
valve.
6. The pump is now primed.
Starting the Pump
A. After the pump is primed, the discharge valve closed,
and the suction valve open, start the driver according to
the driver manufacturer’s instruction.
B. Open the discharge valve slowly to prevent water
hammer.
C. Immediately after the pump has been started, check
bearing temperature and pump noise level. Continue
to monitor these values for the first several hours of
operation.
Bearing Operating Temperature
These pumps are designed to operate over a wide ambient
temperature. The temperature, when measured on the
outside surface of the bearing housing, should not exceed
190º F (88° C). Temperatures in excess of 190º F (88° C)
may indicate a lack of lubricant, or bearing problems. If
temperatures exceed this limit, the pump should be stopped
and the cause investigated and corrected.
Regulating/Control Procedure
Pumping stations are usually designed to have the pumps
started and stopped automatically using a controller. Since
this is a function of station design, the operators should be
thoroughly familiar with the system’s operating parameters
and the use of the controller.
Stopping the Pump
A. Disconnect the electrical power and lock out the power to
the driver.
B. Check power source with appropriate electrical test
equipment to ensure driver cannot accidentally start.
Emergency Procedures
Many installations are equipped with emergency shutoff
switches near the pump location. These locations should be
plainly marked and be readily accessible at all times.
The control panel (if used) may be equipped with an
emergency stop button or switch.
NOTICE: The operator or persons working around
the equipment should be familiar with the locations of
emergency shutoff points.
A. Emergency Start-Up.
1. Open the suction valve.
2. Start the Driver.
3. Open the discharge valve.
B. Emergency Shut-Down.
1. Shut off the power at the nearest switch.
2. Close discharge valve.
Operating at Reduced Capacity
Typical applications cover a wide range of flow rates, and
a variable speed driver is often used to adjust the pump
capacity, which is taken into consideration by Berkeley when
selecting the pump and impeller trim. Although these pumps
are applicable over a wide range of operating conditions,
care should be exercised when doing so, especially when
actual conditions differ from sold conditions. Always contact
your nearest Berkeley distributor or the factory before
operating the pump at any condition other than that for
which it was sold.
Generally, these pumps can be operated continuously
at a capacity equal to 25% of the pump capacity at the
best efficiency point (BEP), and at higher capacities. For
capacities less than 25% of BEP, it is recommended that
the pumps be operated for intermittent periods of time only.
Seasonal Operating Instructions
If the pump is located in an area that is subject to below
freezing temperatures for extended periods of time and will
not be operated enough to prevent freezing, it should be
drained to prevent damage to the casing.

10
TROUBLESHOOTING
If you have followed the installation and start up procedures outlined in this manual, your pump should provide reliable
service and long life. However, if operating problems occur, significant time and expense can be saved if you use the
following checklist to eliminate the most common causes of those problems. Common problems are listed below with
suggested remedies shown.
Symptom Probable Cause Corrective Actions
Insufficient Pump not primed. Prime pump. Evacuate all the air.
Discharge Speed too low. Check drive speed and voltage.
System discharge head too high. Change system. Raise wet well level. Install larger
impeller and driver.
Suction lift too high. Increase submergence. Lower pump. Change
system.
Wrong direction of rotation. Reverse any two motor lead connections. Check
driver O&M.
Air leaks into suction piping, stuffing Check flange connections for proper seal. Tighten
box or gaskets. connections.
Impeller passage partially plugged. Clean impeller passages.
Impeller damaged. Check and repair or replace.
Impeller diameter too small. Replace impeller with larger diameter. Check driver
HP.
Insufficient suction line submergence. Increase submergence.
Air in liquid. Increase submergence to prevent vortexing.
Insufficient net positive suction head. Increase submergence. Lower pump. Change
system.
Worn parts. Rebuild pump.
Loss of Suction line leaks. Tighten flange connections and check to be sure
Suction they are sealed.
Suction lift too high. Increase submergence. Lower pump. Reduce
suction
line losses.
Air or gases in liquid. Increase submergence to prevent vortexing.
Air leaks into suction piping, stuffing box or Check connections and tighten.
gasket.
Wrong direction of rotation. Reverse any two motor lead connections. Check
driver O&M.
Excessive Speed too high. Check driver speed and voltage.
Power System head lower than rating – pumps too Change system. Reduce pump speed. Trim impeller.
much liquid.
Consumption Specific gravity or viscosity of liquid is too high. Reduce pump capacity.
Mechanical defects.
a. Shaft bent. Replace shaft.
b. Rotating element binds. Determine cause and correct.
Misalignment. Check motor/pump to base connections. Realign
coupling.
System head lower than design. Change system. Reduce pump speed. Trim
impeller.
Incorrect impeller diameter. Determine correct impeller diameter and replace or
trim impeller.
Vibration or Misalignment between drive and pump. Realign driver and pump.
Noise Foundation bolts loose or defect in grouting. Tighten foundation bolts and/or regrout.
Mechanical defects.
a. Shaft bent. Replace shaft.
b. Rotating element binds. Determine cause and correct.
Head lower than rating–pumps too much liquid. Increase system head. Reduce pump speed. Trim
impeller.
Pipe strain. Improperly supported or aligned. Check pipe
supports and adjust or realign.
Cavitation. Increase suction head.

11
Symptom Probable Cause Corrective Actions
Pump running at shut-off condition. Open discharge valve. Check for
obstructions.
Insufficient suction line submergence. Increase submergence.
Air in liquid. Increase submergence to prevent vortexing.
Impeller passages plugged. Clean impeller passages.
Bearing Excessive lubricant. Drain lubricant as necessary.
Overheating Shaft bent. Replace shaft.
Rotating element binds. Determine cause and correct.
Pipe strain. Check pipe supports.
Insufficient bearing lubrication. Add lubricant.
Incorrect type of lubricant. Check the lubricant used. Refer to Maintenance
section for recommended lubricants.
TROUBLESHOOTING (continued)
Net Positive Suction Head (NPSH)
NPSH can be defined as the head (energy) that causes liquid to flow through the suction pipe and enter the eye of the
impeller. NPSH is expressed in two values:
1. NPSH required (NPSHR)
2. NPSH available (NPSHA)
It is essential that NPSHA always be greater than NPSHR to prevent cavatation, vibration, wear and unstable operation.
NPSHR is a function of pump design and therefore varies with the make, size, capacity and speed of the pump. The
value for your pump can be obtained from your pump performance curve.
NPSHA is a function of your system and may be calculated as follows:
1. When the source of liquid is above the pump: NPSHA = barometric pressure (feet) + static suction head (feet) -
friction losses in suction piping (feet) - vapor pressure of liquid (feet).
2. When the source of liquid is below the pump: NPSHA = barometric pressure (feet) - static suction lift (feet) - friction
losses in suction piping (feet) - vapor pressure of liquid (feet).
NOTICE: Suction head or suction lift on horizontal pumps is measured from the datum elevation plane which is the
horizontal plane that passes through the centerline of the pump shaft.

12
PREVENTIVE MAINTENANCE
NOTICE: Carefully read this section before attempting any
maintenance procedure. Refer to accessory equipment
manuals that may have been included.
To assure satisfactory operation of the pumps, routine
inspection and periodic maintenance are required. It is
suggested that an inspection and maintenance log be kept
and the inspector immediately report any problems. A guide
for preventive maintenance for normal applications is shown
below. Usual application with abnormal heat, moisture, dust,
etc. may require more frequent inspection and service.
Stuffing Box
The stuffing box is equipped with a mechanical seal.
Generally, pumps should be checked for leakage every
150 hours of operation.
External Flush
The Berkeley Dry-run Seal requires one gallon of food-grade
hydraulic oil (FGHO). Viscosity should be 150 SSU at 100°
F. The upper port is always the return port to the reservoir.
Periodically check the oil level through the sight glass in the
reservoir. When inspecting the pump, inspect the dry-run
system for oil leaks or signs of wear and tear or damage to
hoses, fittings, etc.
Mechanical Seal Replacement
Refer to the Mechanical Seal section of this manual for
general information, including removal and installation
procedures.
Bearing Lubrication
Under normal operating conditions, the bearings must be
lubricated every 2000 hours of running time, or at least once
a year regardless of total operating hours.
NOTICE: Any application with abnormal heat, moisture,
dust, etc. may require a change in this schedule and you
should refer to a lubrication engineer or the factory for
specific instructions.
Grease recommendations in this manual will provide
satisfactory lubrication over a wide temperature range.
There is, however, a practical limit. Operation of the
pump should be discontinued and the factory consulted
if temperatures measured on the outside of the bearing
housing exceed
190° F (88° C).
Grease Recommendations
Recommended grease is an N.L.G.I. No. 2 lithium based
multi-purpose grease with a mineral oil viscosity of
950 - 1250 SUS at 100 degrees F, and 80 - 82 SUS at
210 degrees F. Suggested greases meeting this
specification are:
Proceed as follows during lubrication:
Risk of severe hand injuries from sudden
and unexpected starts. Take extreme care to make sure
that the driver cannot be accidentally started. Keep
hands, fingers, clothing and any tools away from the
coupling.
A. Stop the unit, remove the grease drain plug and connect
a grease gun to the lubrication fitting.
B. Start the unit and inject grease until the old grease is
relieved through the drain opening.
1. If the grease does not relieve at the drain, check for
blockage with a mechanical probe.
2. Immediately after lubrication, bearing temperatures
may rise above normal level.
C. Continue running the unit until bearing temperatures
stabilize at the normal level and grease stops seeping at
the grease drain opening.
D. Stop the unit, remove the grease gun, wipe off the
relieved grease and replace the plug.
E. Resume normal operation.
Impeller Running Clearance (See Table 1)
Risk of electrical shock and sudden and
unexpected starts. Disconnect (and lock out, if possible)
the electrical power before servicing the pump.
As the impeller and front head wear, the clearance
increases causing internal leakage, decreasing pump
performance.
The clearance can be adjusted to compensate for wear.
Refer to the data section of this manual for nominal impeller
clearances. If the desired clearance cannot be obtained, it
may be necessary to rebuild the pump.
The clearance may be checked by removing the suction
hand hole cover and placing a feeler (thickness) gauge
between the impeller and the front head. (Refer to the
impeller adjustment drawing illustrations, Figure 11, and
Table 1.)
Risk of puncture wounds and health
hazards from sharp objects. Do not try to measure
impeller clearance with bare hands. Always wear heavy
puncture resistant gloves when cleaning the pump. The
pumped material may contain items that may present health
hazards such as needles and other sharp objects.
T20, T30, and T40 Frame Pumps:
Back off the jackscrews and tighten the cap screws at the
bearing housing until the impeller just contacts the front
head.
Measure the gap between the housing and frame.
Loosen the capscrews and tighten each jackscrew in a
criss-cross method, 1/8 of a turn at a time until the gap
between bearing housing and frame is increased by the
amount of required impeller distance (see Table 1).
Item Action Required
Seal Box Check every 150 hours for proper
operation. Replace mechanical seal.
Bearings Lubricate every 2000 hours or
at least once a year.
Pump Alignment Check for changes on an annual basis.
Pump Vibration Level Check for changes on an annual basis.
Pump Noise Level Check for changes on an annual basis.
Manufacturer Brand Name
Atlantic Richfield ARCO M/P #2
Chevron Dura-Lith
Exxon Ronex or MP #2
Gulf Gulf Crown #2
Sinclair Litholine MP #2
Texaco Marfak 958 or MP #2

13
NOTICE: If the gap is not as specified, repeat this entire
procedure until the proper clearance is achieved.
Tighten the locknuts to insure that the jacksrews will remain
in the proper position.
T60 Frame Pumps:
Back off the stud locknuts and capscrews holding the thrust
bearing cover (140) and thrust bearing housing (139) to the
frame (90).
Measure the gap between the thrust bearing housing (139)
and the frame (90).
Adjust the shim pack (AL, AM) thickness between the thrust
bearing housing (139) and the frame (90) to achieve the
correct impeller clearance specified in Table 1.
Tighten the stud nuts and capscrews against the O-rings.
Do not compress the O-rings by more than 50%. Recheck
the impeller clearance.
NOTICE: If the gap is not as specified, repeat this entire
procedure until the proper clearance is achieved.
Tighten the locknuts to the stud nuts to make sure that the
housing will remain in proper position.
Cleaning the Pump
If the pump becomes clogged, it will be necessary to stop
the pump and clean out the impeller and volute area.
Risk of puncture wounds and health
hazards from sharp objects. Do not try to clean the
pump with bare hands. Always wear heavy puncture
resistant gloves when cleaning the pump. The pumped
material may contain items that may present health hazards
such as needles and other sharp objects.
Proceed according to the following instruction:
Risk of electrical shock and sudden and
unexpected starts. Disconnect (and lock out, if possible)
the electrical power to the pump before servicing the unit.
A. Stop the pump and lock out the controls so that the
pump cannot accidentally start.
B. Unbolt and remove the cleanout covers in the volute
and elbow (if so equipped). Use a hose or long handle
to loosen and remove debris. If the material cannot be
loosened by a hose, use a scraper to loosen it and then
flush it with a hose.
C. Install new gaskets and replace the cleanout covers.
D. Return to normal operating cycle.
CORRECTIVE MAINTENANCE:
Major corrective maintenance will require disassembly of the
pump. The following are step-by-step instructions:
Time Requirements
Mechanical seal replacement time is approximately four (4)
man hours. Complete disassembly and reassembly of the
pump is estimated at 6 - 8 hours.
Maintenance Qualifications
The pump described by this manual is designed to be
maintained by a mechanic experienced with rotating
machinery, using normal mechanics tools.
Pump Disassembly
NOTICE: Read this entire disassembly procedure and
refer to the sectional drawings in this manual before
proceeding.
A. Prepare the pump for disassembly according to the
following procedure:
1. Lock out the power to the driver.
Risk of electrical shock and sudden
and unexpected starts. Disconnect (and lock out, if
possible) the electrical power to the pump before
servicing the unit. Check the power source with
appropriate electrical test equipment to make sure that
the driver cannot accidentally start.
2. Close suction and discharge valves.
3. Drain the pump
4. Remove the coupling guard and coupling.
5. Disconnect and remove gauges and all other
auxiliary piping. (Stuffing box lubrication lines, grease
lines, etc.)
6. If the volute (30) or fronthead (33) must be removed
for any reason, disconnect the suction and discharge
piping. Remove the capscrews holding the pump to
the base.
7. Remove the pump less the base to a convenient
work area.
Risk of crush injuries if pump is
dropped. The pump is heavy; use appropriate lifting
gear if you must raise the pump. Take all normal
precautions for the weights involved (400 – 1700 lbs.).
B. Remove the capscrews holding the backhead (34) to
the volute (30) but leave in the capscrews that hold the
backhead (34) to the frame (90). Remove the capscrews
which hold the mounting feet (A28 and B28) to the
pump.
C. Install an eyebolt of adequate strength in the tapped
(coupling) end of the shaft (4). Remove the frame (90)
and rotating assembly from the volute (30).
D. Support the frame and rotating assembly in a horizontal
position.
1. Remove the impeller capscrew (9) and impeller
washer (9A).
2. Because the impeller capscrew (9) is installed with
1Loctite®, it will be necessary to heat the cap screw to
approximately 450 degrees F to break the bond.
Burn hazard. Heated parts can cause
severe burns. Wear heat resistant gloves when handling
heated parts.
E. Remove the impeller (1) from the shaft (4). Impeller and
shaft have a close tolerance, so it will be necessary to
use a pulling device.
NOTICE: Take care not to damage the impeller when
using a puller or similar device. Attach the puller or other
equipment at the reinforced impeller vane area only. Do
not pull against the unsupported impeller shroud.
Because the impeller is installed with Loctite®, it will be
necessary to heat the impeller (1) hub to approximately
450º F to break the bond.
Burn hazard. Heated parts can cause
severe burns. Wear heat resistant gloves when handling
heated parts.
F. Refer to the Mechanical Seal section of this manual.
G. Remove the capscrews that secure the backhead (34)
to the frame (90). Remove the mechanical seal (refer to
Mechanical Seal section of this manual), gland (31) and
radial bearing deflector (B126).

14
H. Remove the thrust bearing deflector (A126).
I. Shaft Assembly:
T20 and T30 Frame Construction:
Remove the capscrews and jackscrews that secure
the thrust bearing housing (139) to the frame (90).
Remove the shaft assembly from the frame (90),
using the eyebolt installed in the tapped (coupling)
end of the shaft (4).
Remove the radial bearing (163) from the shaft (4)
using a bearing puller.
Remove the thrust bearing snap ring (168A) and the
thrust bearing housing (139).
Remove the thrust bearing locknut (161) and lock-
washer (162) and then remove the thrust bearing
(168) from the shaft (4) using a bearing puller.
T40 Frame Construction:
Remove the capscrews and jackscrews that secure
the thrust bearing housing cover (140) and thrust
bearing housing (139) to the frame (90).
Remove the thrust bearing housing cover (140) and
remove the shaft assembly from the frame (90) using
the eyebolt installed in the tapped (coupling) end of
the shaft (4).
Remove the radial bearing (163) from the shaft (4)
using a bearing puller.
Remove the thrust bearing housing (139).
Remove the thrust bearing locknut (161) and lock-
washer (162) and then remove the thrust bearing
(168) from the shaft (4) using a bearing puller.
Remove the thrust bearing grease retainer (A206).
T60 Frame Construction:
Remove the capscrews that secure the thrust
bearing housing cover (140), capscrew O-rings
and thrust bearing housing (139) to the frame (90).
Remove the thrust bearing housing cover and shims
(140, AL, AM).
Remove the shaft assembly and impeller adjustment
shims (AL, AM) from the frame (90) using the eyebolt
installed in the tapped (coupling) end of the shaft (4).
Remove the radial bearing (163) from the shaft (4)
using a bearing puller. Remove the radial bearing
grease retainer (B206).
Remove the thrust bearing housing (140) from the
shaft (4).
Remove the thrust bearing locknut (161) and lock-
washer (162) and then remove the thrust bearing
(168) from the shaft (4) using a bearing puller.
Remove the thrust bearing grease retainer (A206).
Risk of hand injury and damage to
bearing. Pull on the inner race only to avoid pulling
the bearing apart.
NOTICE: Because of possible damage or
contamination during removal, bearings and grease
retainers should not be reused and new bearings and
grease retainers should always be installed.
J. The shaft sleeve (14) is secured with Loctite®and needs
to be heated to approximately 450 degrees F to break
the bond. Remove the shaft sleeve (14) from the shaft
(4).
Burn hazard. Heated parts can cause
severe burns. Wear heat resistant gloves when handling
heated parts.
K. Remove the lip seal (139A) from the thrust bearing
housing (139) on T20 and T30 frames.
Remove lip seal (139A) from the thrust bearing cover
(140) on T40 and T60 frames.
Remove lip seal (140A) from the frame (90) on T20, T30,
T40 and T60 frames.
NOTICE: Because of possible damage during
disassembly, lip seals should not be reused and new lip
seals should always be installed.
L. Remove the volute (30) by removing the capscrews
holding it to the fronthead (33).
M. Pump disassembly is now complete. All parts should be
thoroughly cleaned and inspected for wear or damage
and replaced if required.
Pump Assembly
NOTICE: Read this entire assembly procedure and refer to
the sectional drawings in this manual before proceeding.
The following step-by-step instructions for assembly of the
pump are essentially the reverse order of the instructions
for disassembly. All new or cleaned parts should be moved
to a dust-free location for assembly. Gaskets, lip seals,
and bearings should not be reused and should always be
replaced with genuine Berkeley®replacement parts.
Using a new volute gasket (156) between the volute (30)
and fronthead (33), secure the volute with capscrews.
Connect the discharge piping to the volute (30).
Using a new cleanout cover gasket (203), install the
volute cleanout cover (202) securing with capscrews.
B. Install lip seal (139A) on the thrust bearing housing
(139) for T20 and T30 frames.
Install lip seal (139A) on the thrust bearing cover
(140) for T40 and T60 frames.
Install lip seal (140A) on the frame (90) for T20, T30,
T40 and T60 frames.
C. Install the shaft sleeve (14) onto the shaft (4):
NOTICE: To ensure proper bonding, thoroughly clean
all mating surfaces with solvent to remove all grease,
oil, dirt, etc.
1. Apply a bead of Loctite®No. 609 completely
around the shaft (4) on the impeller end of the
shaft/sleeve fit.
2. Slide the shaft sleeve (14) part way onto the shaft
(4) while rotating it at least one full revolution to
evenly spread the Loctite®.
3. Continue sliding the sleeve over the shaft until it
butts firmly against the shaft shoulder.
NOTICE: Allow the Loctite®to cure for two (2) hours prior
to operating the pump.
D. Shaft Assembly:
Preheat thrust bearings (168) and radial bearings (163)
in an oil bath or oven.
Burn hazard. Heated parts can cause
severe burns. Wear heat resistant gloves when handling
heated parts.
NOTICE: When heating bearings, do not exceed
250 degrees F.

15
After the parts have cooled, pack the radial bearing
(163) and thrust bearing (168) half full of grease.
Refer to the bearing lubricating instruction in the
maintenance section of the manual for specific grease
recommendations.
NOTICE: Pressure should be applied to the inner bearing
race only, to prevent damage.
T20 and T30 Frame Construction:
Slide the thrust bearing (168) onto the shaft (4) and
secure with the lock-washer (162) and locknut (161).
Fill the upper portion of the thrust bearing housing (139)
with grease and slide it over the thrust bearing (168).
Install the thrust bearing snap ring (168A) in the thrust
bearing housing.
Slide the radial bearing (163) onto the shaft (4).
Using the eyebolt installed in the tapped (coupling) end
of the shaft (4), install the shaft assembly into the frame
(90).
Secure the thrust bearing housing (139) to the frame
with capscrews. Install the jackscrews but do not tighten
until the assembly is completed.
Go to “All Frames”, below.
T40 Frame Construction:
Install the thrust bearing grease retainer (A206) on the
thrust bearing (168) and slide it on the shaft (4) securing
it with lock-washer (162) and locknut (161).
Install the thrust bearing housing (139) over the thrust
bearing (168).
Slide the radial bearing (163) over the shaft (4).
Using the eyebolt installed in the tapped (coupling) end
of the shaft (4), install the shaft assembly in the frame
(90).
Fill the thrust bearing housing cover (140) with grease
and slide it over the shaft and secure to the frame with
capscrews. Install the jackscrews but do not tighten until
the assembly is completed.
Go to “All Frames”, below.
T60 Frame Construction:
Install the thrust bearing grease retainer (A206) on the
thrust bearing (168) and slide it on the shaft (4) securing
it with lock-washer (162) and locknut (161).
Slide the thrust bearing housing (139) over the impeller
end of the shaft and up over the thrust bearing (168).
Install the radial bearing grease retainer (B206) on the
radial bearing (163) and slide it on the shaft (4).
Using the eyebolt installed in the tapped (coupling) end
of the shaft (4) install the shaft assembly into the frame
(90).
Install impeller adjustment shims between the frame
(90) and the thrust bearing housing (139) (required for
correct impeller clearance. Refer to Impeller Running
Clearance section of this manual). Fill the thrust bearing
housing cover (139A) with grease and slide it over the
shaft and secure to the frame with capscrews.
Go to “All Frames”, below.
All Frames:
After the clearance is set, remove the capscrews
securing the thrust bearing housing (139) and
cover (139A) to the frame (90), install O-rings on the
capscrews, and reinstall.
A. Install the thrust bearing deflector (A126) and radial
bearing deflector (B126) on the shaft (4).
B. Install the backhead (34) to the frame (90) and
secure with capscrews.
C. Refer to the Mechanical Seal section of this manual
for seal installation.
D. Install the gland (31) and hand tighten the gland
bolts.
E. Install the impeller (1), impeller washer (9A) and
impeller capscrew (9) according to the following
procedure:
1. Thoroughly clean the impeller bore, the end of
the shaft, shaft threads and capscrew threads to
ensure they are free from oil, dirt or any foreign
matter.
2. Inspect and measure the impeller bore, shaft fit
diameter, key and keyway for wear. Measure in
several locations along the length of the fit. If the
clearance between the shaft and impeller exceed
0.003” anywhere along the lengths of the impeller
bore, contact the factory for instructions for rework
or replacement of components.
3. Apply a sufficient amount of Loctite®No. 609 to
shaft and impeller bore to cover the entire impeller
fit area.
4. Install the impeller key (102) in the shaft (4).
5. Slide the impeller (1) over the shaft, making sure it
butts firmly against the shaft sleeve.
6. Apply three of four drops of Loctite®No. 609 to
the impeller capscrew threads and install on shaft
with the impeller washer (9A) in place. Impeller
fastener torque values are shown in Table #3 in
the technical data section of this manual. (Torque
values are for SAE grade 8 steel only. If other
materials are used, consult the factory for proper
torque values.)
NOTICE: To prevent the impeller from turning, use a
board wedged in the vanes using care not to damage
the vanes in any way.
F. If the mounting feet were removed, install them at this
time.
G. Install a new volute gasket (156) on the volute (30)
and assemble the complete frame/rotating assembly
onto the volute, securing with capscrews.
H. Install all gauges and auxiliary piping such as
stuffing box lubrication lines, grease lines, etc.
I. Refer to the Impeller Running Clearance section of
this manual for instruction on adjustment and set the
proper clearance.
J. Install the coupling key (272) and pump coupling half
on the shaft (4). Reconnect to drive coupling half on
flexible drive shaft.
K. Install all shaft and coupling guards.
L. The pump assembly is now complete. Refer to
Operation section of this manual.
WEAR RINGS
Replacing Existing Rings
A fronthead wear ring (16) has been supplied with your
pump. If it requires replacement due to wear, the following
procedures should be followed:

16
Wear Ring Removal
A. If the wear ring requires replacement, it can be removed
by heating it to 350 - 400 degrees F to break the
Loctite™ bond.
Burn hazard. Heated parts can cause
severe burns. Wear heat resistant gloves when handling
heated parts.
B. The ring may also be ground off if heating fails to affect
removal.
NOTICE: Care should be used to avoid damage to the
ring set.
Wear Ring Installation
Because of the required close tolerances, replacement wear
rings should be obtained from Berkeley or their authorized
representative.
NOTICE: To insure proper bonding, thoroughly clean all
mating parts with solvent to remove all grease, oil, dirt, etc.
Apply a bead of Loctite®No. 504 to the fronthead
completely around the middle of the wear ring fit, and press
the wear ring into place.
NOTICE: To avoid distortion and ensure proper installation,
be careful to press the wear rings evenly and completely
into place. They should be firmly butted against the
corresponding fronthead shoulder at the bottom of the wear
ring fit.
Adding Wear Rings
It is possible to add either or both impeller or fronthead
wear rings to pumps which were not so originally equipped
from the factory. This work should be done by a qualified
machinist experienced in similar machining work. Contact
the factory for parts, instructions and correct matching
dimensions.
COUPLING REMOVAL AND
INSTALLATION
Refer to the coupling manufacturer’s literature supplied with
the pump.
MECHANICAL SEALS
Mechanical seals covered by these instructions, when
properly installed, will give satisfactory performance. To
ensure proper installation, these instructions should be read
carefully.
Double Mechanical Seal
Standard double mechanical seals consist of two stationary
seats with O-ring seals and a single spring rotating
assembly with O-ring sealing and drive, or O-ring sealing
and elastomer drive ring.
Removal
By this time the frame assembly with backhead should have
been removed to a clean work area.
A. Remove the capscrews that secure the backhead (34) to
the frame (90) and carefully slide it off the shaft sleeve.
B. Remove the solid gland bolts and remove the gland (31).
C. Remove the seal rotating element (45).
D. Inspect all components for damage prior to reassembly.
This should include the shaft sleeve. Replace the
damaged part(s) or replace with a complete new seal.
Installation
A. Remove any burrs or nicks on the sleeve (14) and apply
a light coat of liquid soap or liquid detergent.
NOTICE: Seal faces are lapped and polished to a mirror
finish. It is imperative that sealing faces be handled with
care and kept perfectly clean. DO NOT touch the sealing
faces.
B. Slide the solid gland (31) over the shaft sleeve (14) being
careful not to damage the mechanical seal faces.
NOTICE: The gland, stationary seat and rotating element
must be far enough onto the shaft (4) so as not to
interfere with the installation of the backhead (34).
C. Thoroughly clean the sealing box and install the
mechanical seal (45). Use even pressure to install the
seal.
D. Carefully, so as not to damage the seal (45), slide the
backhead (34) over the shaft (4) and shaft sleeve (14)
and secure to the frame (90) with capscrews.
E. Without touching the seal faces and using a slight
twisting action, push the seal and rotating element into
the backhead (34) sealing box.
F. When the seal spring can easily be compressed by
hand into the sealing box, secure the gland (31) with
capscrews to the backhead.
Operation
Special operating techniques are not required when using
pumps equipped with mechanical seals. However, there are
certain precautions that should be taken.
A. Pumps should never be operated, even to test electrical
connections, until the operator knows that there is oil in
the sealing box. In order to check for oil in the sealing
box, loosen the dry run connections at the box. Tighten
the connections only after oil has started flowing.
Running the seal with an air bound sealing box is the
same as running it without fluid.
B. Some seals will leak slightly when first run. This leakage
should cease within a very short period of time.
Routine Maintenance
Required maintenance at a very minimum as follows:
A. Periodically (150 hours of operation) check to see that
the pumped liquid is going through the sealing box out to
the wet well or drain.
B. Check that the gland bolts have not loosened and that
the gland is flush with the sealing box.

TECHNICAL DATA
17
Installation Alignment Limits Fastener
Gap Offset (Maximum) Angular (Maximum Torque
Size (Inches) (Inches) min./max. in Inches) (lb.-in.)
1030T .125 .006 .003 100
1040T .125 .006 .003 100
1050T .125 .008 .004 200
1060T .125 .008 .005 200
1070T .125 .008 .005 200
1080T .125 .008 .006 200
1090T .125 .008 .007 200
Table 3: Falk Coupling Alignment Data
Impeller Tightening
Pump Size Pump Fastener Torque
& Model Frame Size (lb. - ft.)
4BSD1 T20 1/2 - 13 80
4BSD2 T20 1/2 - 13 80
4BSD3 T30 5/8 - 11 120
6BSD3 T30 5/8 - 11 120
4BSD4 T40 3/4 - 10 200
4BSD5 T40 7/8 - 9 240
5BSD6 T40 7/8 - 9 240
6BSD6 T60 1-1/4 - 7 240
8BSD6 T60 1-1/4 - 7 240
Table 2: Impeller Fasteners and Torque
Table 1: Pump Nominal Impeller Clearance
Discharge Model Frame Nominal
Size Number Size Impeller Clearance
4” 4BSD1 T20 .010 - .020
4” 4BSD2
4” 4BSD3 T30 .015 - .025
6” 6BSD3
4” 4BSD4
T40
.010 - .020
4” 4BSD5 .008 - .015
5” 5BSD6 .020 - .030
6” 6BSD6 T60 .020 - .030
8” 8BSD6
Maximum Installation Alignment Limits Fastener
Sleeve Gap Offset (Maximum) Angular (Maximum Torque
Size Type (Inches) (Inches) min./max. in Inches) (lb.-in.)
6S JES .875 .015 .070 155
7S JES 1.000 .020 .081 155
8S JES 1.125 .020 .094 275
9S JES 1.437 .025 .109 275
10S JES 1.625 .025 .128 275
11S E 1.875 .032 .151 275
Table 4: Woods Coupling Alignment Data

18
ANGULAR ALIGNMENT
ANGULAR
LIMIT = A – B
OFFSET ALIGNMENT
OFFSET
LIMIT
COUPLING GAP
5400M003
GAP
6151 0210
A
B
5400M001
ANGULAR ALIGNMENT
OFFSET ALIGNMENT
COUPLING GAP
GAP
OFFSET
LIMIT
6152 0210
ANGULAR
LIMIT = A – B
A
B
Figure 2: Falk Coupling Alignment Figure 3: Woods Coupling Alignment
5400M005
TYPE JES TYPE E
6153 0210
Figure 4: Coupling Sleeves—TYPE JES Sleeves are
one-piece split construction moulded EPDM rubber.
TYPE E Sleeves are two-piece molded EDPM rubber
secured by a retaining ring.

19
Figure 5A: Assembly with Integral Fronthead (4BSD1, T20 Frame), product shown with volute oriented in T1 position
9A 9
272
161 162 A28
168
168A B28L
B28R
31
31A
16
34
5 156
30
B126
139A
139
4
90
DR1
140A
A126
14
34
11
6
102
6145 1010 NH
Hardware not indicated
Item Description Part Number
1 Impeller T4A1FG
1 Impeller T4A1FG
4 Shaft T20B4A 4180 F
9 Impeller Capscrew 11FM7A0113 0003 F
9A Impeller Washer CP5855AN 9660 F
14 Shaft Sleeve T20B14A 9630 F
16 Wear Ring T4A16A 9630 F
A28 Mounting Foot, Frame T20B28A 4080 F
B28L Mounting Foot, Left T20B28C 4080 F
B28R Mounting Foot, Right T20B28D 4080 F
30 Volute T4A30Y 0220 F
31 Solid Gland W175A31A 0220 F
31A Gasket T20B325A 8180 F
34 Backhead T20B34A 0220 F
45 Mechanical Seal HYD1DE1 9906 F
90 Frame T20B90B 0220 F
102 Impeller Key 16FM104S0194 4780 F
A126 Deflector HYD6F2 9906 F
Item Description Part Number
B126 Deflector HYD6F3 9906 F
139 Bearing Housing T20B139A 0220 F
139A Lipseal HYD2Q6 9906 F
140A Lipseal HYD2Q18 9906 F
156 Volute Gasket T3A155A 8380 F
161 Bearing Locknut 11FM61AN10 0006 F
162 Bearing Lockwasher 11FM1JAW10 0006 F
163 Thrust Bearing HYD38M11 9906 F
168 Radial Bearing HYD38M11 9906 F
168A Snap Ring HYD37B11 9906 F
272 Coupling Key 16FM104S0331 4780 F
DR1 Dry-Run Tank Assembly B85725
(See Figure 10)
Mechanical Seal Kit B85783
(Includes 31A, 45, AH, AJ,
AK); Dry-pit Solids handling,
T20 (Includes Items 31A, 45,
AH, AJ, AK)
Parts List – B85622

20
Figure 5B: Assembly Hardware (4BSD1, T20 Frame)
AW,
AX
AV
AV AE
AB,
AZ
AA,
AC
AF AY
AGDR1 AH,
AJ,
AK
AL,
AM
AR,
AS,
AT
AP,
AR,
AT
6145 1010 H
Only hardware shown
Item Description Part Number
AA Pipe Plug 20FM7D0002 0008 F
AB Pipe Plug 20FM7A0006 0008 F
AC Pipe Plug 20FM7D0004 0008 F
AE Pipe Plug 20FM7D0002 0008 F
AF Cap Screws 11FM7A0112 0001 F
AG Cap Screws 11FM7A0056 0001 F
AH Gland Bolts 11FM4A0103 0006 F
AJ Gland Bolt Nuts 11FM25A10005 0006 F
AK Gland Bolt Washers 11FM25A10005 0006 F
AL Jam Nuts 11FM27A0003 0006 F
Item Description Part Number
AM Washers 11FM1N0009 0006 F
AP Cap Screws 11FM7A0056 0001 F
AR Cap Screws 11FM7G0058 0001 F
AS Jam Nuts 11FM27A0003 0006 F
AT Washers 11FM1N0009 0006 F
AV Lube Fitting 20FM23E0003 0013 F
AW Cap Screws 11FM7A0112 0001 F
AX Washers 11FM1MB0003 0006 F
AY Cap Screws 11FM7A0055 0001 F
AZ Pipe Plug 20FM7A0002 0008 F
Parts List – B85622