CHICAGO PUMP VOS Instruction Manual

Instruction 2111.80B 04/051
IMPORTANT
READ THIS ENTIRE INSTRUCTION MANUAL THOROUGHLY BEFORE SERVICING PUMP.
TYPE VOS, VPM and HBB
NON-CLOG PUMPS
Frames: 44081 thru 64132
Chicago Pump Company
P.O. Box 6620
3905 Enterprise Court
Aurora, IL 60598-0620
Phone: [phone]
Fax [phone]
www.chicagopump.com
Installation & Maintenance Manual

Instruction 2111.80B 04/052
Table of Contents
1.GENERALREQUIREMENTS 3
A. PURPOSE AND IMPORTANCE OF MANUAL 3
B. SPECIAL PRECAUTIONS 3
C. RECEIVING INSPECTION - SHORTAGES 3
D. PRESERVATION AND STORAGE 3
E. PROCEDURE FOR ORDERING PARTS 3
F. NAMEPLATE IDENTIFICATION 3
G. TOOLSREQUIRED 4
H. RECOMMENDED LUBRICANTS 4
I. RECOMMENDED CLEANING SOLVENTS 4
J. RECOMMENDED SPARE PARTS 4
2INSTALLATION 5
A. PUMP 5
1)Location 5
2) Foundation 5
3)AnchorBolts 5
4)Setting 5
a)Pump 5
b)MotorSupport 5
5)Alignment 5
a)Vertical 5
b)Horizontal 6
6)Grouting 6
7) Piping Connections 6
B. WOOD'S SURE-FLEX® COUPLINGS 7
C. UNIVERSAL JOINT/INTERMEDIATE INDUSTRIAL SHAFTING 8
3. START-UP AND OPERATION 9
A. PRIMING 9
B. PRESTART-UP LUBRICATION INSTRUCTIONS 9
1) Radial and Thrust Bearings 9
2) Flexible Couplings 9
3) Flexible Shafting 9
4)StuffingBox 9
5) Mechanical Seal Box 10
C. PREPARATION FOR START-UP 11
D. SEQUENCE FOR INITIAL START-UP 12
E. NORMALOPERATION 12
F. EMERGENCYOPERATION 12
G. STOPPING PROCEDURES 12
H. EXTENDED SHUT-DOWN PROCEDURES 12
4. GUIDE TO TROUBLESHOOTING 13
5.REPAIRS 14
A. CLEANING 14
B. DISASSEMBLY PROCEDURE 14
C. ASSEMBLY PROCEDURE 15
D. RECOMMENDED TORQUE VALUE OF FASTENERS 16
E. PARTS LIST AND CROSS-SECTIONAL DRAWINGS 16-19
6. PREVENTATIVE MAINTENANCE SCHEDULE 20

Instruction 2111.80B 04/053
SECTION I. GENERAL INFORMATION
A. PURPOSE AND IMPORTANCE OF MANUAL
CHICAGO PUMP Dry Pit Centrifugal Pumps, when properly installed, given reasonable care and
maintenance, and operated near the design capacity and head, will provide years of low cost, efficient
pumping service. This manual is intended to give instruction in the proper installation, operation, and
maintenance of the pumps. Strict compliance with these instructions will insure reliable performance in
wastewater service. Keep this manual handy for ready reference.
READ THIS MANUAL THOROUGHLY BEFORE INSTALLING OR OPERATING PUMP(S).
B. SPECIAL PRECAUTIONS
CHICAGO PUMP cannot be responsible for any damage resulting from failure to comply with these
instructions. The pump is not to be operated at conditions nor with liquids other than those stated in the
original order acknowledgment without written permission from CHICAGO PUMP COMPANY.
C. RECEIVING INSPECTION - SHORTAGES
Upon receipt of equipment make sure that no damage occurred in transit and that shipment complies with the
bill-of-lading and packing memo. Make note of damage or shortages on both receipt and freight bill.
Claims should be made to the transportation company within five (5) days.
D. PRESERVATION AND STORAGE
The pumps are shipped with adequate protection for transportation in covered trucks, and for indoor storage at
the jobsite for a limited time between receipt and installation. CHICAGO PUMP equipment, if not put into
immediate use, should be stored in a cool, clean, and dry indoor location. To prevent rusting, any paint
scratches or chips incurred during handling should be touched up prior to storage.
Equipment that is to be stored for one month or more should be covered with plastic to protect it from
corrosion. Suction and discharge flanges should also be covered. Exposed shaft ends should be coated
with a suitable rust preventative. Packing should be removed from units famished with a stuffing box to
prevent pitting of the shaft sleeve. Additionally, the pump rotating assembly must be spun for
approximately one minute monthly to insure proper distribution of lubricant. DO NOT add lubricant to the
pump bearings while the unit is in storage. Prior to equipment start-up, the pump must be repacked,
completely rechecked and re-rotated. If the original packing is no longer useable, replacement sets may be
ordered from your CHICAGO PUMP representative.
Refer to specific manufacturer's instructions for storage recommendations for motors, drives, or controls.
E. PROCEDURE FOR ORDERING SPARE PARTS
Parts and service for CHICAGO PUMP Products are available exclusively through the designated sales
representative located in your geographical area. When ordering repair parts, please give the full
nameplate data from the pump nameplate as described herein, including S.O. Number. Complete
nameplate data will insure most rapid handling of your order with the minimum chance of mistake. List
each part required using the item number and name of part as shown on the following pages. Be sure to
state the quantity of parts required
F. NAMEPLATE IDENTIFICATION
S.O.- The sales order / serial number of the pump. This
number must be provided when ordering parts or requesting
technical assistance.
T.D.H.- The rated total dynamic head of the pump in feet.
Type-The pump configuration, model, and bearing frame when
applicable.
G.P.M.- The ratedcapacity of the pump in gallons per minute.
Make record of the nameplate information from your pumps
in this manual for easy reference.

Instruction 2111.80B 04/054
G. TOOLS REQUIRED
Use only the proper tools when dismantling or repairing any CHICAGO PUMP equipment. Tools required
for disassembly and assembly of dry pit pumps are as follows:
H. RECOMMENDED LUBRICANTS
GREASE OIL
CITGO Lithium CITGO Citgard 10W
EP-2 Petro Canada 10W
Mobil DTE Light
In cases where abnormal conditions exist, such as very high temperatures, it is advisable to consult a
lubrication engineer to determine. the proper lubricant to use. If this is not practical, contact your
CHICAGO PUMP representative stating your conditions, and alternative recommendations will be
provided.
I. RECOMMENDED CLEANING SOLVENT
Safety - Kleen, or any equal grade of non-flammable industrial cleaner.
J. SPARE PARTS RECOMMENDATIONS
The parts list accompanying the cross-section drawing included with this manual denotes items
recommended to be carried as spare parts. It is impossible for CHICAGO PUMP to accurately determine the
predicted life of any parts subject to wear because of the varying severities of duty exerted on each individual
unit manufactured. The list includes parts recommended to be carried for one to five years of operation. It is
recommended that the following parts not be reused at re-assembly, even if showing no apparent wear:
Grease seals Shaft Sleeve (for Packed
Pump)
Snap Rings Thrust Bearing
Packing Mechanical Seals
Impeller Locknut Wear Rings (When Furnished)
Radial Bearing Filter Insert (When Furnished)
Gaskets
Bearing Locknut & Washer
Screwdriver Several Good Blocks of Wood or a Bench
Standard Wrenches Bearing Puller
Retaining Ring Pliers Wheel Puller / Bars
Lifting Sling Bearing Heater
Allen Wrenches Emery Cloth
Torch Wooden Mallet

Instruction 2111.80B 04/055
SECTION II. INSTALLATION A. PUMP
A. PUMP
1. LOCATION
The following factors must be considered in selecting a location for the pump(s):
a. The pump should be installed as near the liquid to be pumped as possible, with the shortest and most
direct suction piping arrangement. The total dynamic suction lift (static elevation plus losses through suction
pipe and fittings) should not exceed 15 feet.
b. The pump should be located in a position such that the highest point of the casing is below the
minimum level of liquid to be pumped. This condition is referred to as submerged suction.
c. Select a dry place.
d. Select a location that has ample floor space for inspection and repairs.
e. Provide ample floor drains at the pumping unit. For dry pit applications, the use of an automatic sump pump is
strongly recommended.
f. NPSH Available must be greater than NPSH Required at all operating points.
2. FOUNDATION
A foundation should consist of a flat, level, substantial surface to provide a permanent, rigid support for the
pump base. The foundation must also be solid enough to absorb any normal amount of vibration which may
occur. The natural frequency of the support structure must be no less than twice the pump excitation frequency.
If a raised foundation is desired, it should be at least six inches greater in length and width than the base of the
pump support, and at least deep enough to provide proper embedment for the anchors. A raised foundation
should never be superficially poured over a smooth concrete floor, but should be rooted by one of the following
means: (a) When the concrete is newly poured, cast a shallow depression in the floor using a box form, (b) leave
reinforcementbars protruding above floor level, or (c) gouge out holes in an existing concrete floor.
3. ANCHOR BOLTS
Anchor bolts should be set in pipe sleeves two and one half times larger in diameter than the recommended
bolts. The bolts must be accurately placed to correspond with bolt holes in the pump base, as indicated on
the dimensional installation drawing. Figure I illustrates the generally accepted method of anchorage. This
system traps the bolt for anchorage and allows the bolt to move within the sleeve for alignment purposes. The
bolts should be fastened to a template form, usually made of wood, and spaced to conform accurately with
pump base anchor bolt holes. The form must be carefully located so that the pump will stand exactly in its specified
position with relation to elevation, shaft plumb and pipe connections. The concrete can then be poured.
Before fixing anchor bolts into the form, the top and bottom of the sleeves should be plugged with oakum, as
shown. Check that sleeves are held rigidly against square plate, which will permit slight adjustment of the bolts
after the concrete has set. This will prevent strains or difficulties arising from slight dimensional
discrepancies.
4. SETTING
A. PUMP
Set pump on the foundation over the anchor bolts, but do not tighten down bolts. Raise the pump unit 1"
and carefully level for grouting by driving wedges under the pump support or base plate. To level vertical
units, place a level on face of pump coupling half and face of discharge flange, and shim the unit as
required. Check horizontal units at the suction flange, pump and motor half coupling, and on the base plate
near the pump and near the motor.
B. MOTOR SUPPORT
Set the motor support over the floor hole; position the universal shafting to the motor coupling, setting the
motor assembly so that it is level and the shafting alignment below can be maintained per
UNIVERSAL JOINT / INDUSTRIAL INTERMEDIATE SHAFTING, page 8. After installation of
shafting in accordance with those instructions, the unit may be bolted down.
5. ALIGNMENT
A. VERTICAL
On pedestal mounted pumps, the motor supports are indexed (top & bottom) to maintain factory alignment.
Coupling alignment should be checked in accordance with the guidelines on page 7 prior to final
installation. Refer to flexible shafting instructions, page 8, to determine proper alignment for shaft driven
units.

Instruction 2111.80B 04/056
B. HORIZONTAL
Pumps and drivers that are received from the factory with both machines mounted on a common base
plate, were accurately aligned before shipment. Units are shipped with coupling halves separated and
require coupling realignment at installation. All base plates are flexible to some extent and therefore must
not be relied upon to maintain factory alignment. Realignments necessary after thecompleteunit has been
leveled on the foundation, and again after the grout has been set and foundation bolts have been tightened. The
alignment must be checked after the unit is piped, and rechecked periodically.
6. GROUTING
Non-shrink grout is generally made up of a mixture of one part pure cement and two parts sand with sufficient
water to cause the mixture to flow. A wooden form should be built around the outside of the base of the
pump, and the pump base plate or pedestal should be completely filled with grout. This will provide ahead to
force the grout into all the cracks and crevices, and prevent the grout from shrinking away from the base as it
sets. Before and after the grout has been hardened, the nuts on the foundation bolts should be tested for
tightness, and the pump should be checked to see that it has not shifted from its correct position. Alignment of
couplings must be checked after any adjustment to the unit.
7. PIPING CONNECTIONS
The suction and discharge pipes must be independently supported near the pump so that no strain will be
transmitted to the pump casing. Provisions should also be made for pipe expansion and contraction so that no
strain is placed on the pump. A generous, grooved, square hole should be left when running a pipe through a
concrete wall, and the pipe should be grouted in only after the pump unit is set and all final connections have been
made. If an expansion joint or pipe coupling is to be used between the pump unit and the nearest point of
anchor in the piping (i.e. a wall), it is essential that the joint / coupling be axially rigid to offset the pressure
increase which would otherwise be exerted on the pump.
Suction and discharge pipe lines must not be smaller in size than the connections on the pump. Piping should be
arranged with as few bends as possible, and should be made with long radius elbows when feasible, to
reduce the loss of head due to friction.
Consult the factory when handling liquids above 40°C (104°F.)
CAUTION
THE PUMP SHOULD NEVER BE THROTTLED BY THE USE OF A VALVE ON THE SUCTION SIDE OF THE PUMP.
Suction Piping
The suction piping must be kept free of air leaks. Air that remains entrapped in the piping after the pump
has been primed and started will eventually be drawn into the pump. This may cause the pump to cavitate or
lose its prime. This situation can usually be temporarily remedied by priming and starting the pump several
times. This will draw enough air from the entrapped pockets so that the pump will operate properly, but the
trouble is likely to reoccur until such a pocket is eliminated.
Some vapor, released by the partial vacuum in the suction pipe occurs naturally in the pumpage. This vapor,
added to small amounts of air admitted through minute leaks in the pipe connections, must not be allowed to
build-up.Excessive air pockets canbe eliminated by following these guidelines:
a. If the pump operates with a suction lift, the suction pipe must slope upward to the pump nozzle and
downward to the source of supply. If the suction pipe is installed higher than the pump nozzle, an air pocket
will form at the highest point
b. In a horizontal suction line, an eccentric reducer installed flat side up must always be used in lieu of a
concentric reducer. Use of a concentric reducer will cause air pockets to form in the top of the reducer and
suction line.
c. If a gate valve is used in the suction line, it should be installed with the stem in a horizontal position.
Vertical positioning allows air to become trapped in the bonnet of the valve.
Wet well design should always be in accordance with Hydraulic Institute Standards.
Consult the factory for anything other than individual piped suction installations.
CAUTION
RESTRICTED FLOW VALVES SHOULD NEVER BE USED ON THE SUCTION SIDE OF THE
PUMP. ALL VALVES MUST BE OF A FULL FLOW TYPE.

Instruction 2111.80B 04/057
Discharge Piping
A suitable check valve and gate valve should be installed in the discharge pipe near the pump to protect the
pump from reverse flow and excessive back-pressure. The check valve should be placed between the pump
and the gate valve. If increasers are used to accommodate larger discharge piping, they should be placed
between the check valve and the pump. The selection of discharge pipe size should be made with due reference
to friction loss and should never be smaller than the pump discharge size.
At the end of a "pump down cycle" some air may enter the pump and remain trapped by the discharge check
valve. To facilitate the expulsion of this trapped air, an automatic air release valve and open vent pipe should be
installed from the pump backplate to the wet well.
Alignment must always be rechecked after piping connections have been made.
B. WOOD'S SURE-FLEX®COUPLINGS
The couplings include elastomeric sleeves to compensate for temperature changes during operation. They are
NOT to be used to compensate for misalignment of the motor and pump shafts. The following procedures apply
to Wood's Sure-Flex® couplings only. When couplings other than these are supplied, please refer to the
specific manufacturer's instructions. If questions arise as to the type of coupling supplied with the unit, contact
your CHICAGO PUMP representative.
Position the flanges on the shaft to approximately achieve the "Y" dimension (dimension across coupling
flanges, outside to outside) shown in Table 1. It is usually best to have an equal length of shaft extending into
each flange. Move one flange to its final position and tighten the set screws. Slide the other flange far enough away
to install the sleeve. With a two-piece sleeve, do not move the wire ring to its final position; allow it to hang loosely
in the groove adjacent to the teeth.
Slide the loose flange on the shaft until the sleeve is completely seated in the teeth of each flange. (The "Y"
dimension is for reference and not critical.) Secure the flange to the shaft. Different coupling sleeves require
different degrees of alignment precision. Locate thealignment values for your sleeve and type in the table.
Check parallel alignment by placing a straightedge across the two coupling flanges and measuring the
maximum offset at various points around the periphery of the coupling without rotating the coupling. If the
maximum offset exceeds the figure shown under "Parallel" in the table, realign the shafts by placing shims
underneath the motor.
Check angular alignment with a micrometer or caliper. Measure from the outside of one flange to the outside of
the other at intervals around the periphery of the coupling. Determine the maximum and minimum dimensions
without rotating the coupling. The difference between the maximum and minimum must not exceed the figure
shown under "Angular" in the table. If a correction is necessary, be sure to recheck the parallel alignment.
If the coupling employs the two-piece sleeve with the wire ring, force the ring into its groove in the center of the
sleeve. It may be necessary to pry the ring into position with a blunt screwdriver.
TABLE 1
MAXIMUM RPM AND ALLOWABLE MISALIGNMENT
(Dimensions in Inches)
Types JE, JN, JES. JNS, E & N *Type H & HS
Sleeve Size Parallel Angular Y Parallel Angular Y
3 .010 .035 1.188 ... ... ...
4 .010 .043 1.500 ... ... ...
5 .015 .056 1.938 ... ... ...
6 .015 .070 2.438(1) .010 .016 2.500
7 .020 .081 2.563 .012 .020 2.625
8 .020 .094 2.938 .015 .025 3.000
9 .025 .109 3.500 .017 .028 3.563
10 .025 .128 4.063 .020 .032 4.125
11 .032 .151 4.875 .022 .037 4.938
12 .032 .175 5.688 .025 .042 5.750
13 .040 .195 6.688 .030 .050 6.688
14 .045 .242 7.750 .035 .060 7.813
16 .062 .330 10.250 ... ... ...
*Type H and HS sleeves should not be used as direct replacements for EPDM or Neoprene sleeve.
(1) Value when using 6J flanges is 2.125

Instruction 2111.80B 04/058
C. UNIVERSAL JOINT / INTERMEDIATE INDUSTRIAL SHAFTING
NOTE: The following instructions apply when flexible type shafting with universal joints and spliced slip joint is
furnished as intermediate shafting between the pump and motor. If special shafting is supplied, manufacturer's
specific instructions will be provided. If questions arise as to the type of shafting supplied with the pump, contact
your CHICAGO PUMP representative.
Although universal joints will compensate for considerable misalignment, working angle must be held to
within 6°on standard shafting, and 4° on short coupled shafting. An offset of 1/8" to 3/16" per foot of shafting is
recommended to provide needle bearing roller action. UseTable 2 to approximate offset and/or working angle.
After the pump and motor support have been set
into position, install the companion flanges on the
motor shaft and pump shaft. Stock bored flanges
are a slip fit over the mating shaft. Align keyways
in both the flange and shaft and gently tap on
flange. Tighten set screw. Interference or shrink-fits
require heating the flange uniformly (preferably
submerged in ac oil bath not exceeding 180°C) to
expand the bore. Align the keyways in both the shaft
and flange, slide flange onto shaft and allow to
cool. CAUTION: DO NOT ATTEMPT TO
HAMMER AN UNDERSIZED FLANGE ON.
The shaft must be recessed 1/16" below the
indexed mounting face of the flange. Once the flanges are installed, set the motor on its support and measure
the distance from the motor flange to the pump flange. Compare that distance to the overall shafting dimension
shown on the specific installation drawing, and make any necessary adjustments by placing shims under the
motor.
If no intermediate guide beings are furnished, the shafting may be bolted directly to the motor and to the pump. Bolt
the upper portion of the flexible shafting to the motor making sure that the pilot is firmly seated and bolt holes in
flanges line up. Insert bolts or studs, nuts and lockwashers and tighten to the specified torque indicated on Table 3.
Insert lower end of flexible shaft slip joint into splined section making sure that yoke and ears are uniformly aligned
and bolt holes are in line. Insert bolts or studs, nuts and lockwashers and tighten to torque specified in Table 3.
When multiple sections of shafting are used and intermediate guide bearings are furnished, rigid supports are
required for the bearings. The natural frequency of the bearing support must be no less than four times the pump
excitation frequency. A plumb line hung from the motor shaft will be helpful in locating the intermediate guide
bearings. The distance from the mounting surface of the support to the plumb line should be at least equal to, and
preferably greater than, the distance from the center of the bearing to the support mounting surface. Using a
phantom vertical center line on the support opposite the plumb line, drill the holes for the guide bearing bolts.
Lay the uppermost "B" section out on a floor, and slide the steady bearing over neck of the "B" stub. To facilitate
installation and future removal, it is
recommended that light grease be used on the
shaft and threads. Install tapered flange onto
shaft, followed by retaining nut. Tighten nut until
firmly seated against flange and flange is firmly
seated against shaft. Nut must be tightened so
that there is approximately .001" to .004" diametral
interference between bore and shaft. Install cotter
pin. Attach universal
end of shafting to motor companion flange so that
pilot is firmly seated, yoke and ears are
uniformly aligned and bolt holes are lined up.
Insert bolts or studs, nuts, and lockwashers and
tighten to torque indicated on Table 3. Attach
self aligning steady bearing to support beam
and secure bearing to "B" stub. Shim if necessary. Repeat above procedure for each additional "B" section as
required. Mount lower "A" section as outlined above for single section shafting.
CAUTION
INTERMEDIATE STEADY BEARINGS SUPPLIED BY CHICAGO PUMP HAVE BEEN PROPERLY SELECTED TO
WITHSTAND NORMAL AMOUNTS OF MISALIGNMENT. DO NOT ATTEMPT TO USE ALTERNATIVE BEARINGS
WITHOUT WRITTEN APPROVAL FROM CHICAGO PUMP COMPANY.
Table 2
1° 2° 3° 4° 5° 6° 7°
OFFSET IN INCHES
1 .209 .419 .625 .839 1.049 1.261
2 .418 .838 1.250 1.678 2.098 2.522
3 .627 1.257 1.875 2.517 3.147 3.783
4 .836 1.676 2.500 3.356 4.196 5.044
5 1.045 2.095 3.125 4.195 5.245 6.305
6 1.254 2.514 3.750 5.034 6.294 7.566
7 1.463 2.933 4.375 5.873 7.343 8.827
8 1.672 3.352 5.000 6.712 8.392 10.088
9 1.881 3.771 5.625 7.551 9.441 11.349
Shafting Length in Feet
10 2.090 4.190 6.250 8.390 10.490 12.610
TABLE 3
BOLT SPECIFICATIONS
Bolt Size Applicable Shafting Series Wrench Torque Grade
3/8"- 24 27, 31, 61, 71 31'# 5
7/16"- 20 37, 41, 81 4T# 5
1/2"-20 48,55 76'# 5
5/8"-18 88,91 213'# 8
3/4"- 16 95 375' # 8
Note: Bolts must be tightened in a crisscross pattern and
tightened to the specified torque to insure proper mating face
contact.

Instruction 2111.80B 04/059
SECTION III. START-UP AND OPERATION A. PRIMING
A. PRIMING
A CHICAGO PUMP Dry Pit Centrifugal Pump should never be started in an unprimed condition. It is
absolutely essential that both the casing and suction pipe be completely filled with the liquid to be pumped
and void of air or vapor. If the installation does not allow for submerged suction (See Location, page 5) as
recommended by CHICAGO PUMP, another suitable priming device is necessary. Units installed with
submerged suction should have a vent cock located on the top of the casing. Entrapped air is released
through the opened vent cock when liquid enters the pump. The pump must not be started until all air has
been exhausted from the casing and suction line. In the event that the pump cannot be primed in this
manner, consult the factory.
B. PRE-STARTUP LUBRICATION INSTRUCTIONS
1. Radial and Thrust Bearings
CHICAGO PUMP Dry-Pit centrifugal pumps are equipped with ball bearings, angular contact ball bearings,
cylindrical roller or spherical contact roller bearings which have been properly lubricated prior to shipment.
No additional lubrication is needed prior to startup. These bearings require but a few ounces of grease per
year. For maximum efficiency, bearings should be approximately half full of grease. UNDER NO
CIRCUMSTANCES SHOULD A BEARING BE GREASED UNTIL GREASE OOZES OUT OF THE BEARING.
Excess grease acts as a dirt catcher and does not in any way lubricate the bearing. An over-greased bearing
tends to overheat and in some cases, may overheat to the point where the temper is drawn from the balls
or rollers, rendering them soft and causing premature bearing failure. Under normal operating conditions, a
bearing requires only 1/2 oz. to 1 oz. of grease every 1500 hours of operation. (Refer to PREVENTATIVE
MAINTENANCE SCHEDULE, page 20.) For applications where high temperatures or other unusual
conditions exist, consult the factory for special lubrication recommendations.
Some horizontal pumps are equipped with an oil bath lubrication system for the thrust and radial
bearings. This system provides a constant supply of fresh oil to the bearings. A drain plug is provided at the low
point of the oil chamber to facilitate oil renewal. Maintenance of this system only requires visually checking
the oil level at the oil cup or oil plug, and adding oil, if necessary, to a level just below the overflow point. When
adding oil remove the oil vent plug in the top of the bearing housing. DO NOT ADD OIL WHILE THE PUMP IS
RUNNING. The bearings will retain a considerable amount of oil when rotating. With the pump at rest, the oil
collects in the bottom of the chamber, and excess oil will overflow around the shaft and/or out of the oil cup.
The oil should be changed every 3,000 hours of operation. (Refer to PREVENTATIVE
MAINTENANCE SCHEDULE, page 20.) Use only a high quality grade of mineral oil with rust and oxidation
inhibitors at least equal to Mobil DTE Light. Observe oil level prior to start-up and add if necessary.
2. Flexible Couplings
Factory standard elastomeric jaw type couplings require no lubrication. If non-standard couplings are furnished,
refer to the specific manufacturer's lubrication instructions or consult your CHICAGO PUMP representative.
3. Flexible Shafting
Cross and bearing assemblies and sliding splines contain only enough grease to provide protection
during storage. Complete lubrication is necessary prior to start-up to avoid premature failure.
a. Cross and bearing assemblies and steady bearings are to be lubricated with a good quality of grease.
(See PREVENTATIVE MAINTENANCE SCHEDULE, page 20.) Lubricant MUST appear at all four
bearing seals to assure removal of dirt and contaminents. It may be necessary to move drive shaft
from side to side while applying grease gun pressure to allow greater clearance on the thrust end of
bearing that is not purging.
b. Sliding splines in slip joint must only be lubricated with Texaco Marfac "0" EP or equal grade of long fiber
grease. DO NOT use standard grease.
4. Stuffing Box
The shaft stuffing box is packed prior to shipment. The packing is placed in the stuffing box in single
rings with the ends butted together. Each ring is cut to the proper length so that the ends come together
but do not overlap. Succeeding rings of packing are placed in the stuffing box so that the joints of the rings
of packing are staggered. The stuffing box is provided with a lantern or seal ring.

Instruction 2111.80B 04/0510
a. Water Seals: On pumps handling liquids with solids, a water seal is used principally to flush the
packing and prevent entrance of solids or grit which would score the shaft or shaft sleeve. It also
serves to cool and lubricate packing, and in the case of suction lift applications it is required as a seal
against entrance of air. Non-Clog pumps are furnished with water seals for external or outside
connection to a clear water supply having a pressure approximately 3 to 10 lbs. (7 ft. to 23 ft. head)
greater than the pump discharge pressure. If the available pressure is too high (20 pounds or more above
the operating head of pump) or if gland leakage is excessive a pressure reducing valve should be used.
If available pressure is below operating head of pump, or when required, it is often necessary to
employ a small water seal pumping unit. The most economical consumption of sealing water is
obtained by installing a solenoid valve in the water seal line, wired with the pump circuit to open
automatically when the pump operates.
Note: As a precaution against contamination, State Departments of Health do not permit connecting
the water seal line of a sewage pump directly to the city supply.
b. Grease Seals: When water is not available a grease seal is recommended. For grease seals to be
effective, a constant pressure of water-proof grease must be maintained on the packing, for which purpose
a spring loaded grease cup (see Fig. 2) is usually employed. This spring loaded grease cup is designed for
controlled lubrication. The cup has a knurled adjusting screw at the top that permits the operator to decrease
or increase the tension on the spring and thus assures a precise regulation of a constant lubricant flow.
The reservoir of the cup is filled with lubricant through the Alemite Fitting located at the cup base. As the
lubricant is forced into the reservoir, the cup leather and the pressure spring are elevated until the spring
stops at the safety shoulders where the top of the cup slopes inward. The pressure is then extended
downward through the cup channel, flushing the packing and refilling it with fresh, clean lubricant. The cup
is fitted with a special type tapered valve stem which moves in a tapered delivery channel. As the spring
expands by its own tension, the valve stem descends. This combination of tapered stem and tapered
channel automatically compensates for the decreasing tension of the spring and an exact uniform
pressure of lubricant is effected.
When the spring loaded grease cup is used for this purpose, the cup must be kept loaded at all
times with a recomended grease. It is imperative that grease be forced through the packing at a rate of
at least 1 oz. per day. For high head pumps (over 100 ft. head) a water seal is required.
Regardless of the type of lubrication system employed, the stuffing box gland should be quite loose
when the pump is first put into operation. After the pump has been found to operate properly, the stuffing
box gland may be evenly tightened very slowly. Packing should not be pressed too tightly as this may
result in burning the packing and scoring the shaft or shaft sleeve. The gland should leak a slow steady
weepage of fluid (either outside flush water or pumpage) when the pump is operating. When weepage can
no longer be controlled by adjusting the gland, all rings of packing should be replaced. The addition of a
single ring to restore gland adjustment is not recommended.
If the pump is to be left idle for a period of one month or more, the packing should be removed. Refer to
the "Repairs" section of this manual for packing installation procedure.
5. Mechanical Seal Box
Pumps may be furnished with a mechanical seal. The standard seal arrangement consists of a double
mechanical seal (two single seals mounted back to back) and a suitable sealing medium which is
introduced into the sealing chamber. Each seal consists of a rotating element and a stationary element. The
sealing faces are highly lapped surfaces of materials selected for low coefficient of friction and
resistance to corrosion by the liquid being pumped. The faces have a minute running clearance and
normally run on a very thin film of liquid. The sealing liquid may be clear water, or if the
application permits, filtered liquid taken directly from the pump discharge.
a. Flow Through Clear Water Lubrication
Clear water is injected into the seal box cartridge through a tapped connection at a pressure higher
than that which would exist in the box, thereby isolating the sealing faces from the liquid being pumped.
If sufficient sealing pressure is not maintained, the pressure within the pump will force open the lower seal
and allow the liquid being pumped to enter the box, ruining the seal. A flow of 2 GPM per pump at 5 psi
above the shutoff pressure is required for satisfactory seal operation. Consult the typical performance
curve to determine shutoff head, or contact your CHICAGO PUMP representative. A solenoid
installed in the downstream side of the seal box should open the seal water line at the mechanical seal

Instruction 2111.80B 04/0511
before the pump starts. A flow meter or flow indicator installed on the seal water line will verify flow of
seal water into the seal box. A pressure reducing valve and needle valve can be used to adjust
pressure and flow rate.
b. Closed Loop Filtered Lubrication System
The mechanical seal is lubricated by liquid taken directly from the pump discharge. The liquid enters the
seal chamber from the power frame end. The double seal housing should be vented using the
petcock prior to starting the pump. This will insure that no air is trapped within the mechanical
seal chamber. CAUTION: Never run the mechanical seal dry as damage will result. The liquid used
for lubrication must be filtered prior to being used. Therefore, the liquid drained through the petcock
should be clean. If sand is present in this liquid the filter insert requires replacement. If the liquid from
the petcock is dark in color, check the seal faces and replace entire seal if one or more seal faces are
damaged. Liquid leaking out the end of the mechanical seal housing indicates that a re-application of a
non-hardening gasket compound must be made.
As the seal is a precision made product, care must be taken in handling. The carbon and ceramic
parts should be safeguarded from drops or severe blows. Particular care should be taken to avoid
scratching the capped surfaces on the washer and floating seal.
Other
Refer to specific manufacturer's instructions for lubrication recommendations for drives, motors or other accessories.
C. PREPARATION FOR START-UP
Prior to initial start-up of the pump, the following items must be checked:
1. Be sure that all equipment is properly aligned and has been lubricated in accordance with the PRE-
STARTUP LUBRICATION INSTRUCTIONS, pages 9 through 11.
2. Turn shaft by hand to see that it rotates freely. If it binds, or turns with difficulty, refer to "Repairs" section
of this manual for guidance to remedy the problem.
3. Be sure that discharge pressure gauges and suction compound gauges are properly installed and
operating.
4. Verify that current characteristics of voltage and frequency on the driver nameplate coincide with the service
provided.
5. Check to see that the direction of rotation is the same as shown by the arrow on the pump and on the
installation drawing. To check rotation, quickly turn the power on and off (only long enough to get the shaft
spinning). Observe the direction of rotation of the coupling. The motor leads should be marked, and the
starter diagram located inside the starter should be marked, so that the connections can be broken and
remade with accuracy. It is important that the pump rotates in the direction for which it was designed. If the
pump is not rotating in the direction the pump is intended, interchange any two of the motor leads and
recheck. As soon as the pump is rotating in the correct direction, mark the leads and diagram as
mentioned above. These instructions apply to three phase motors only. Single phase motors cannot be
reversed in this manner and are checked at the factory. If rotation reversal is required for single phase
motors, consult the factory.
6. Verify that all thermal units are closed and the H-O-A switch (when used) is in the “off” position.
7. Refer to driver and control manuals for specific pre-start instructions.
8. Verify thatthe gate valve on the discharge line is closed and the suction valve is completely open.
A centrifugal pump, primed and operating at full speed with the discharge valve closed, usually
requires less power than when operating at rated head and capacity with the discharge valve open. For
this reason CHICAGO PUMP recommends that whenever practical, the discharge gate valve be closed
when starting the pump.
To prevent overheating, "shut-off' operation should be limited to five minute periods. Prolonged "shut-off'
operation may prove harmful to the structural integrity of the pump mainly because of increased vibration
level affecting the bearings and stuffing box or mechanical seal; increased radial thrust and resultant stress in
the shafts and bearings; or excessive cavitation and accompanying damage resulting from internal re-
circulation.
WARNING
OPERATION OF A CENTRIFUGAL PUMP WITH THE SUCTION VALVE CLOSED AND THE DISCHARGE VALVE
OPEN, OR BOTH VALVES CLOSED MAY CAUSE SERIOUS DAMAGE TO THE PUMP. SUCH OPERATION MAY
LEAD TO RAPID AND VIOLENT PUMP FAILURE.

Instruction 2111.80B 04/0512
D. SEQUENCE FOR INITIAL START-UP
1. Be sure that the discharge valve is closed, suction valve is completely open, and pump is completely
primed. Vent pump by opening vent taps in the casing, suction pipe, and stuffing box or mechanical seal.
2. Close the suction vent line and seal / stuffing box vent fitting.
3. Start the pump in accordance with the particular control system being used.
4. Close pump casing discharge vent when all entrapped air is expelled.
5. Slowly open discharge valve until valve is completely opened. This should coincide with stable pump
operation at the designed duty. Because Total Dynamic Head (TDH) is a function of several variables and
cannot be accurately determined from a single gauge reading, refer to your CHICAGO PUMP
representative for suspected discrepancies in actual pump performance. Actual operating head should not
be less than the minimum operating head nor greater than the maximum limit shown on the pump perfor-
mance curve.
During the initial period of operation, check the following items:
a. See that the pump bearings do not overheat due to over or under lubrication. Bearings normally operate
at approximately 50° C (122°F).
b. See that there is the desired water weepage from the stuffing box or that lubrication to the mechanical
seal is being provided.
c. See that all pipe connections are tight, and that valves are functioning properly.
d. Observe the flexible line shafting, checking for vibration or whipping.
e. Note operation of the automatic control mechanism, observing numerous complete start-stop
cycles. See that the liquid level control starts and stops properly as wet basin fills and is then emptied by
the pump. Check high and low water level adjustment.
Observe operation of pump closely for the first day and at frequent regular intervals for the first two
weeks. A new machine is frequently stiff or initial control regulation may be incorrect, therefore the
unit should be watched closely to note performance. Refer to PREVENTATIVE
MAINTENANCE SCHEDULE, page 20, for normal operating inspection procedures and
frequencies
E. NORMAL OPERATION
The pump must be operated within 10% of capacity rating of the specified primary (nameplate) duty point. The
pump should be checked and maintained in accordance with the PREVENTATIVE MAINTENANCE
SCHEDULE, page 20. Additionally, the dry pit area should be cleaned regularly. Amperage readings
should be checked to warn of improper phase reversal or a phase out condition. Controls and drivers should be
checked in accordance with specific manufacturer's recommendations. On multiple pump systems, Elapsed
Time Meters should indicate balanced operation between pumps. The pump should operate without excessive
noise or vibration. Pump and motor bearings should not overheat. Weepage from the stuffing / seal box should be
controlled per guidelines on page 10 and 11.
F. EMERGENCY OPERATION
In the event of station power failure: Do not allow automatic restart of the pump. Perform SEQUENCE FOR
INITIALSTART -UP as outlined on this page.
In the event of station flooding; If pump or motor become submerged, units MUST beremoved and completely
rebuilt by a competent service shop. Refer to Repair Instructions.
In the event of mechanical failures: The unit should be locked out and repair service obtained from a competent
service shop. Refer to Repair Instructions.
G. STOPPING PROCEDURE
Turn off power to the pump and allow the pump to coast to a complete stop before restarting. No banging or
hammering sounds should be heard during shut-down. If this condition exists, "water hammer" may be
occurring in the piping. This system problem may result in severe damage to the pump. It is recommended that
a specialized engineer in this field be consulted immediately. The pump must not be operated until this
condition is eliminated. Consult your CHICAGO PUMP representative or the factory.
H. EXTENDED SHUT-DOWN PROCEDURE
When shutting down the pump for an extended period, the motor disconnect switch should be opened and
locked out. All valves on suction, discharge, and packing lubrication lines must be shut tight. The pump should
be completely drained of water by removing vent and drain plugs until all pumpage has run out. When
practical, the pump should be flushed to remove any corrosives and/or abrasives. Draining and flushing

Instruction 2111.80B 04/0513
protects the pump against sedimentation build-up and damage due to freezing. The pump and bearings should
be thoroughly inspected at this time so that all necessary servicing may be done during the inactive period. If the
pump is to be out of service for more than one (1) month, CHICAGO PUMP recommends removing the
packing from the stuffing box. Shaft must be rotated for one minute monthly to insure proper distribution of
lubricant. Re-lubricate the pump in accordance with PRESTART-UP LUBRICATION instructions, page
9, prior to putting the unit back into service.
SECTION IV. GUIDE TO TROUBLE SHOOTING
Discounting the possibility of damage during transit, most field trouble is the result of a faulty installation or
misapplication. If the following points are checked, it is likely that the difficulty will be discovered and can be
remedied.
A. NO LIQUID DELIVERED
1. Pump is not primed.
2. Speed is too low, check voltage.
3. Discharge head is too high.
4. Suction lift is too high (over 15 ft.)-Check with gauges.
5. Impeller is completely plugged up.
6. Direction of rotation is incorrect.
7. Valve is closed.
B. INSUFFICIENT LIQUID IS DELIVERED
1. Air leaks are present in suction pipe or stuffing box.
2. Speed is too low, check voltage.
3. Discharge head is higher than anticipated.
4. Suction lift is too high (over 15 ft.) - Check with gauges.
5. Impeller is partially plugged.
6. There is not enough positive suction head for handling hot liquids.
7. Mechanical defects:
Wearing rings worn,
Impeller damaged,
Packing defective.
8. Direction of rotation is incorrect.
9. Valve is partially closed.
C. EXCESSIVE POWER CONSUMPTION
1. Speed is too high.
2. System head is lower than anticipated. Pumps deliver too much liquid.
3. Specific gravity of liquid is higher than anticipated. Check viscosity and specific gravity.
4. Mechanical defects:
Shaft bent,
Rotating elements binding,
Stuffing box too tight,
Wearing rings worn or rubbing.
5. Direction of rotation is incorrect.
6. Power factor is too low, check with wattmeter.
D. PUMP LOSES PRIME AFTER STARTING
1. Leak(s) present in suction line.
2. Water seal is plugged.
3. Suction lift is higher than anticipated (over 15 ft.).
4. Excessive air or vapor is present in liquid.
5. Insufficient NPSH Available.
NOTE: Check the pump speed with a tachometer. If speed is low, check the line voltage.
In cases where checking over the points outlined above does not disclose the trouble and this trouble has developed
before the pump has outlived the contract guarantee, CHICAGO PUMP COMPANY will send one of its engineers to
make an investigation on the basis of a written agreement that if the trouble proves to be a defect in the unit, no charge
will be made for the company's engineer, but if the trouble is due to faulty installation or conditions not in accordance with
those for which the pump is guaranteed, then the customer will pay for the engineer's service.

Instruction 2111.80B 04/0514
SECTION V. REPAIRS
A. IF PUMP REQUIRES CLEANING:
Removable handhole covers are provided on the pump volute (22). To clean pump, disengage disconnect switch, lock
out, close all valves, drain the pumps, remove cleanout cover (55), and remove any solids.
B. TO DISASSEMBLE THE PUMP:
1. Open the electric circuit, lock disconnect switch in "Off' position, close all gate valves on suction, discharge and
water seal lines. Drain the pump of water by removing the casing drain plug (16B).
2. Disconnect water seal, vent, grease and drip pocket lines, when present, from the pump.
3. Plug vent line going back to wetwell.
4. Disconnect the bottom end of the lowest shaft section at the pump coupling flange. (See fig. 1.) The bottom or
"A" section of universal joint shafting is easily swung aside to permit pump removal. Where more than one shaft
section is used, the remaining sections need not be disturbed.
5. Remove power frame nuts (25) separating upper pump assembly from discharge casing (22). Where
applicable also remove capscrews and washers (82).
6. Hoist or lift upper pump assembly from discharge casing.
7. Remove impeller locknut (19). If impeller cannot be re moved easily, warm the impeller near the shaft with a
torch. Pry the impeller carefully and evenly with two large screws on opposite sides of the backplate. Care should be
exercised in prying so as not to bend the shaft. Though prying without heating is possible, it is recommended that heat be
applied to prevent enlarging the impeller bore. Remove the impeller key.
8. Remove backplate (26) from upper pump assembly. Loosen gland nuts (13), remove packing gland (32) and pick
out packing rings (30) and lantern ring (29) carefully noting the number of packing rings used above and below the
lantern ring.
9. Remove water slinger (12) and coupling key (1) from shaft.
10. To dismantle the power frame assembly:
a. No. 1 power frame
i. Remove the 2 capscrews and washers (37) that are threaded into the power frame (8).
ii. Tighten jackscrews (3), in equal increments, to remove shaft assembly from power frame. It will be
necessary to use longer jackscrews than those provided for impeller adjustment to facilitate complete
removal of the bearing retainer (36) from the power frame.
iii. After the bearing retainer is completely out of the power frame, lift the shaft assembly by the threaded hole in
themotor end of the shaft.
iv. Remove snap ring (35) from bearing retainer.
v. Remove bearing retainer from shaft assembly.
vi. Remove bearing locknut and washer (6) and bearing (7).
vii. Remove snap ring (10) from shaft and remove bearing (9).
viii.Clean all parts in kerosene and remove all burrs from machined surfaces before reassembling pump. Keep
ball bearings wrapped in clean, lintless cloth at all times when not in pump. When replacing bearings on shaft, pack
clean bearing grease into the bearings with fingers (be sure fingers are free of dirt and / or grit). DO NOT
USE A HAMMER TO REMOVE SHAFT ASSEMBLY.
b. No. 2 power frame with two-piece bearing retainer.
i. Remove the 2 capscrews and washers (37) that are threaded into the power frame (8).
ii. Remove shaft assembly from power frame by tightening jackscrews (3), in equal increments. It will be
necessary to use longer jackscrews than those provided for impeller adjustment to facilitate complete
removal of the shaft assembly
iii. After the bearing retainer sleeve (85) is completely out of the power frame, lift the shaft assembly by the
threaded hole in the motor end of the shaft.
iv. Remove capscrews (86) from bearing retainer (84).
v. Remove bearing locknut and washer (6) from shaft.
vi. Remove bearing set (7) and bearing retainer sleeve as a unit from shaft. Bearing puller should bear on
inner race of the bearing set.
vii. Pull bearing set out of bearing retainer sleeve.
viii. Remove snap ring (10) from shaft and remove bearing (9). Bearing puller should bear on inner race of
the bearing.
ix. Clean all part in kerosene and remove all burrs from machined surfaces before reassembling pump. Keep
ball bearings wrapped in clean, lintless cloth at all times when not in pump. When replacing bearings on
shaft, pack clean bearing grease into the bearings with fingers (be sure fingers are free of dirt and/or grit). DO
NOTUSE A HAMMER TO REMOVE SHAFT ASSEMBLY.

Instruction 2111.80B 04/0515
c. No. 2 power frame with one-piece bearing retainer.
i. Remove the 2 capscrews and washers (37) that are threaded into the power frame (8).
ii. Remove bearing retainer (36) from power frame by tightening jackscrews (3), in equal increments. It
will be necessary to use longer jackscrews than those furnished for impeller adjustment to facilitate
complete removal of the bearing retainer from the power frame.
iii. After the bearing retainer is completely out of the power frame, lift the shaft assembly by the threaded hole
in the motor end of the shaft.
iv. Remove snap ring (35) from bearing retainer._
v. Remove bearing retainer from shaft assembly.
vi. Remove bearing locknut and washer (6) and bearing set (7).
vii. Remove snap ring (10) from shaft and remove bearing (9).
viii. Clean all parts in kerosene and remove all burrs from machined surfaces before reassembling pump.
Keep ball bearings wrapped in clean, lintless cloth at all times when not in pump. When replacing
bearings on shaft, pack clean bearing grease into the bearings with fingers (be sure fingers are free
of dirt and/or grit). DO NOT USE A HAMMER TO REMOVE SHAFT ASSEMBLY.
NOTE: Pumps with the No. 2 power frame having the two-piece bearing retainer can have the motor end
bearing set removed and replaced without dismantling the entire pump by the following procedure:
1. Perform steps 1 through 4 as above.
2. Remove coupling key (1) from shaft.
3. Remove the 2 capscrews and washers (37) that are threaded into the power frame (8).
4. Remove capscrews (86) from bearing retainer (84).
5. Remove bearing retainer from power frame by tightening jackscrews (3), in equal increments. It will be
necessary to use longer jackscrews than those furnished for impeller adjustment to facilitate complete
removal of the bearing retainer from the power frame.
6. Remove bearing locknut and washer (6) from shaft.
7. Replace bearing retainer and capscrews (86).
8. Tighten jackscrews (3), in equal increments, to remove bearing retainer, bearing retainer sleeve (85), and
bearing set (7) as a unit from shaft.
9. Remove capscrews (86) from bearing retainer.
10. Pull bearing set out of bearing retainer sleeve.
11. When reassembling the bearing, it is mandatory that anew grease seal (38) be installed.
C. TO ASSEMBLE PUMP:
To assemble the pump, reverse the disassembly procedure but take the following precautions:
1. Remove the old packing or mechanical seal assembly as applicable. .
2. Carefully place the bearings onto the shaft being certain of proper orientation. Check the diagrams for
assistance.
3. Place water slinger (12) on shaft before assembling packing or mechanical seal housing.
4. Be certain to use impeller key (20).
5. Check all gaskets and grease before using.
6. Before placing sleeve on shaft, clean the shaft with a solvent, and then coat the shaft with Loctite
RC680 or equivalent.Sleeve must be placed on shaft prior to mechanical seal assembly.
7. Assemble each individual mechanical seal part carefully in order not to damage mating seal faces. Press
old floating seat out of seal housing. Oil outer surface of the seat ring using light oil (not grease), and push
the stationary seal face into the cavity of the seal housing, setting it firmly and squarely. Wipe the
lapped seal face of the rotating seat clean, and oil face with clean light oil. If seal housing gasket (27)
needs replacing, put on a new gasket. Place water slinger and seal housing assembly carefully over
shaft, being careful not to strike floating seal with shaft.
Oil the surface of the shaft using light oil, not grease. Wipe the face of the sealing face clean and oil
with clean light oil. After placing seal housing (40) onto the shaft, put the sealing face and bellows assembly,
less the spring, on the shaft. Be certain the seal face is in the proper position with the carbon sealing face
toward the motor end. The notches on the edge of the sealing face should mate with the lugs on the
retainer.Use a sleeve of proper diameter to slide assembly back as far as it will go. Until slinger and seal
housing are back against the power frame. When sliding seal assembly onto shaft, be certain to press
only tail sections of bellows and driving band. A smooth sleeve of about 1/32" longer than the shaft sleeve
diameter with a wall thickness of about 1/8" is suitable. Place seal spring over shaft and set it properly
over the bellows assembly.
8. Assemble seal housing to backplate.
9. Use a non-hardening gasketing compound, Permatex #2 Form-a-gasket or equal (21) prior to

Instruction 2111.80B 04/0516
placing impeller on shaft.
10. Adjust impeller (18) axially with set screws to have a clearance between impeller and suction cover
(24) of .005 to .010 inches. When the pump is in a vertical position, loosen cap screws (3) until
impeller rubs on suction cover, then tighten cap screws (3) 1/4 to 1/2 turn until the proper clearance is
reached. Cap screws should be alternately tightened in equal increments to assure satisfactory impeller
clearance. Tighten cap screws (37) to secure bearing retainer (36).
TABLE 4
Recommended Torque Values of
Fasteners in Foot-Pounds
LOW CARBON
STEEL
304
ST'N STL SILICON BRONZE 316 ST'N STL
1/4-20 5.4 6.3 5.7 6.6
5/16 - 18 10.8 11.0 10.3 11.5
3/8 - 16 17.7 19.7 18.3 20.6
7/16-14 28.2 31.3 29.1 32.8
1/2- 13 38.8 43.1 40.0 45.2
9/16 - 12 51.1 56.8 52.7 59.4
5/8 - 11 83.3 92.5 85.8 96.7
3//4 - 10 104.9 127.5 118.0 131.8
7/8 - 9 159.9 194 178.3 202.5
BOLT/SIZE
1 " - 8 236.0 286.7 265.4 299.6

Instruction 2111.80B 04/0517
PARTS LIST
1. Coupling Key *23. Gasket 54. Cleanout Cover Gasket
2.Shaft 24. Suction Cover 55. Cleanout Cover
3. Hex. Head Cap Screw 25. Hex Head Cap Screw and Washer 56. Nut and Washer
4. Nut and Washer 26. Back Plate 57. Hex Head Cap Screw
5. Pipe Plug, Grease Relief *27. Gasket 58. Floor Plate
*6. Bearing Lock Nut and Washer 28. Packing Housing 59 Pedestal
*7. Ball Bearing (Duplex Pair on No. 29. Lantern Ring 60. Stud
2 Power Frame) *30. Packing 61. Nut andWasher
8. Power Frame *31. Shaft Sleeve 62. Hex Head Cap Screw and Washer
*9. Ball Bearing (Double Row on No. 32. Packing Gland 63. Motor Pedestal
2 Power Frame) 33. Alemite Fitting 64. Hex Nut
*10. Snap Ring *34. Grease Seal 65. Motor Adapter
11. Pipe Plug, Grease Relief *35. Snap Ring 66. Pump Half Coupling
*12. Water Slinger 36. Bearing Retainer 67. Flexible Insert
13. Gland Nut and Washer 37. Hex Head Cap Screw and Washer 68. Motor Half Coupling
14. Gland Bolt *38. Grease Seal 69. Coupling Set Screw
15. Hex Head Cap Screw and Washer 39. Lower Seal Housing 70. Hex Head Cap Screw and Washer
16. Pipe Plug 40. Upper Seal Housing 71. Motor
(A). Air Vent *41. Seal Assembly 72. Hex Head Cap Screw and Washer
(B). Volute Drain 42. Filter Assembly 73. Base Assembly
(C). Seal Drain *43 Filter Insert 74. Power Frame Foot
(D). Gauge Connections 44. Connector 75. Hex Head Cap Screw and Washer
(E). Water or Grease Seal 45. Elbow 76. Pump Foot
Connection 46. Petcock Assembly 77. Stud
*17. Volute Gasket 47. Tubing 78. Hex Head Cap Screw and Washer
18. Impeller 48. Tubing 82. Hex Head Cap Screw and Washer
19. Lock Nut and Washer 49. Hex Head Cap Screw and Washer 83. Hex Head Cap Screw and Washer
20. Impeller Key *50. Suction Elbow Gasket 84. Bearing Retainer Cap
21. Non-Hardening Gasket 51. Suction Elbow 85. Bearing Retainer Sleeve
Compound 52. Nut and Washer 86. Socket Head Cap Screw
22. Volute 53. Hex Head Cap Screw
(*) Recommended Spare Parts List

Instruction 2111.80B 04/0518

Instruction 2111.80B 04/0519

Instruction 2111.80B 04/0520
If
Applicable Item to be
Lubricated Recommended Lubricant Frequency Method Remarks
Pump Bearings:
Thrust & Radial
(grease lubricated)
Amoco Super Permalube
Arco Litholine E2
Shell Alvania EP2,
Molyvis ST-200,
Mobil Mobilux #2.
Texaco Regal AFB2
Unocal UNOBA E2, or equal grade of
lithium soap base or EP grease.
Every 1500 hours of operation, or
more frequently depending on
severity of duty.
Add enough grease to Alemite fittings to
maintain bearings 1/2 full. (1/2 to 1 oz) DO NOT OVERGREASE
Pump Bearings:
Thrust & Radial
(oil lubricated)
Mobil DTE Light
Shell Turbo 32
Chevron GST 32
Exxon NUT0 32
or equal.
Check oil level prior to start-up.
Check level at oil cup or oil plug
once a week.
Visually inspect.
Manually refill when oil level falls below
overflow point of oil cup or oil Plug
Change oil every 3000 hours of
operation See page 9
Packing:
(grease lubricated)
Shell Alvania EPRO 71030 or equal
NOTE: If automatic grease
lubrication system is used, refer to
manufacturer's lubricant
recommendations.
3 oz. grease applied every 24 hours
of operation
Manually add grease to Alemite fitting, or
employ use of an automatic grease
lubrication system
Visually Inspect for slow steady weepage
of pumpage.
See page 10.
Packing:
(flow thru water
lubrication) Clear Water Check daily for flow. Visually inspect for slow steady weepage
of water See page 10.
Mechanical Seal (flow thru water
lubrication) Clear Water Check daily for flow Visually inspect flow meter to verify
mechanical seal is being lubricated. See page 10.
Mechanical Seal (closed loop filter
system) Filtered liquid from Pump discharge check filter element every 8 weeks
Drain a small amount of liquid thru
petcock at seal housing. Inspect for
clarity. Replace filter element if
necessary.
See page 10.
Shafting:
Steady and Cross
Bearings Same as for pump bearings. Prior to start-up and every 200
hours of operation
Add grease to fittings until old grease is
purged and new grease appears at all
ports. See page 8.
Shafting:
Sliding Splines Texaco Marfac “O” EP, or equal grade of long fiber grease ONLY. Prior to start-up and every 200 hours of operation Add grease to grease fining. See page 8
General Overall
Inspection Once a week
Check operation of control system, and
that motor comes up to speed properly.
Keep interior and exterior of motor and
controls free from moisture, oil and dirt.
Refer to special motor
manufacturer's instructions for
additional recommended
maintenance