GORMAN-RUPP 60 Series User manual

PUBLICATION NUMBER MR−04021
February 14, 1994
Rev. B 08-26-08
THE GORMAN-RUPP COMPANY DMANSFIELD, OHIO
GORMAN-RUPP OF CANADA LIMITED DST. THOMAS, ONTARIO, CANADA Printed in U.S.A.
e1994 The Gorman-Rupp Company
60 SERIES PUMPS

Register your new
Gorman-Rupp pump online at
www.grpumps.com
Valid serial number and e-mail address required.
RECORD YOUR PUMP MODEL AND SERIAL NUMBER
Please record your pump model and serial number in the
spaces provided below. Your Gorman-Rupp distributor
needs this information when you require parts or service.
Pump Model:
Serial Number:

MR−04021 60 SERIES PUMPS
PAGE I − 1INTRODUCTION
INTRODUCTION
Thank You for purchasing a Gorman-Rupp 60
Series Pump. Read this manual carefully to learn
how to safely maintain and service your pump. Fail-
ure to do so could result in personal injury or dam-
age to the pump.
A set of three manuals accompanies your pump.
The Installation/Operation Manual contains essen-
tial information on installing and operating the
pump, and on making electrical connections. The
Parts List Manual provides performance curve(s),
a pump model cross-section drawing, and parts
list for your pump.
This Maintenance and Repair Manual provides
troubleshooting and maintenance instructions re-
quired to properly diagnose operational problems,
and to service the pump hydraulic components.
Contact the factory for the authorized repair facility
closest to you.
This pump is a 60 Series centrifugal pump, with
straight-in suction without a suction check valve.
The pump is designed to handle petroleum prod-
ucts and other clear liquids that do not contain sol-
ids. For specific service, contact your Gorman-
Rupp distributor or the Gorman-Rupp Company.
The basic pump is not furnished with a mounting
base and power source; however, these items are
available from the factory as optional equipment.
The pump is designed to be driven by an explo-
sion-proof motor.
As described on the following page, this manual
will alert personnel to known procedures which re-
quire special attention, to those which could dam-
age equipment, and to those which could be dan-
gerous to personnel. However, this manual cannot
possibly anticipate and provide detailed precau-
tions for every situation that might occur during
maintenance of the unit. Therefore, it is the respon-
sibility of the owner/maintenance personnel to en-
sure that only safe, established maintenance pro-
cedures are used, and that any procedures not ad-
dressed in this manual are performed only after es-
tablishing that neither personal safety nor pump in-
tegrity are compromised by such practices.
If there are any questions regarding the pump
which are not covered in this manual or in other lit-
erature accompanying the unit, please contact
your Gorman-Rupp distributor or the Gorman-
Rupp Company:
The Gorman-Rupp Company
P.O. Box 1217
Mansfield, Ohio 44901−1217
or
Gorman-Rupp of Canada Limited
70 Burwell Road
St. Thomas, Ontario N5P 3R7
CONTENTS
SAFETY − SECTION A
TROUBLESHOOTING − SECTION B
PUMP MAINTENANCE AND REPAIR − SECTION C
Lifting PAGE C − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PUMP AND SEAL DISASSEMBLY AND REASSEMBLY PAGE C − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source Removal PAGE C − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Disassembly PAGE C − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impeller Removal PAGE C − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Cover Removal PAGE C − 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seal Removal PAGE C − 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shaft and Bearing Removal and Disassembly PAGE C − 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shaft and Bearing Reassembly and Installation PAGE C − 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seal Reassembly And Installation PAGE C − 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Cover Installation PAGE C − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impeller Installation PAGE C − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Cover Replacement PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Final Pump Assembly PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MR−0402160 SERIES PUMPS
PAGE I − 2 INTRODUCTION
LUBRICATION PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seal Assembly PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grease Lubricated Bearings PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Lubricated Bearings PAGE C − 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECORDING MODEL AND
SERIAL NUMBERS
Please record the pump model and serial number
in the spaces provided in the separate Installation/
Operation Manual and Parts List Manual accom-
panying your pump. Your Gorman-Rupp distribu-
tor needs this information when you require parts
or service.
WARRANTY INFORMATION
The warranty provided with your pump is part of
Gorman-Rupp’s support program for customers
who operate and maintain their equipment as de-
scribed in this and the other accompanying litera-
ture. Please note that should the equipment be
abused or modified to change its performance be-
yond the original factory specifications, the war-
ranty will become void and any claim will be de-
nied.
The following are used to alert personnel to procedures which require special attention, to those which
could damage equipment, and to those which could be dangerous to personnel:
Immediate hazards which WILL result in
severe personal injury or death. These
instructions describe the procedure re-
quired and the injury which will result
from failure to follow the procedure.
Hazards or unsafe practices which
COULD result in severe personal injury
or death. These instructions describe
the procedure required and the injury
which could result from failure to follow
the procedure.
Hazards or unsafe practices which COULD
result in minor personal injury or product or
property damage. These instructions de-
scribe the requirements and the possible
damage which could result from failure to
follow the procedure.
NOTE
Instructions to aid in installation, operation, and
maintenance or which clarify a procedure.

MR−04021 60 SERIES PUMPS
PAGE A − 1SAFETY
SAFETY − SECTION A
The following information applies
throughout this manual to Gorman-
Rupp 60 Series basic pumps.
Because pump installations are seldom
identical, this manual cannot possibly
provide detailed instructions and pre-
cautions for each specific application.
Therefore, it is the owner/installer’s re-
sponsibility to ensure that applications
not addressed in this manual are per-
formed only after establishing that nei-
ther operator safety nor pump integrity
are compromised by the installation.
Before attempting to install, operate, or
service this pump, familiarize yourself
with this manual, and with all other liter-
ature shipped with the pump. Unfamil-
iarity with all aspects of pump operation
covered in this manual could lead to de-
struction of equipment, injury, or death
to personnel.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Shut off the incoming power to the
motor and lock it out or take other
action to ensure that the pump will
remain inoperative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau-
tiously.
7. Drain the pump.
This pump is designed to handle petro-
leum products and other clear liquids
that do not contain solids. Do not at-
tempt to pump water, corrosive materi-
als, or any liquids which may damage
the pump or endanger personnel as a
result of pump failure.
If this pump is used with volatile and/or
flammable liquids, be certain proper
safety practices are followed before op-
erating or servicing the pump. Provide
adequate ventilation, prohibit smoking,
wear static-resistant clothing and
shoes. Clean up all fuel spills immedi-
ately after occurrence.
Do not operate the pump against a
closed discharge valve for long periods
of time. If operated against a closed dis-
charge valve, pump components will
deteriorate, and the liquid could come
to a boil, build pressure, and cause the
pump casing to rupture or explode.
If this pump is used with volatile and/or
flammable liquids, overheating may
produce dangerous fumes. Take pre-
cautions to ensure the area surrounding

60 SERIES PUMPS MR−04021
PAGE A−2 SAFETY
the pump is adequately ventilated. Al-
low the pump to completely cool and
use extreme caution when venting the
pump, or when removing covers, plates,
plugs, or fittings.
Overheated pumps can cause severe
burns and injuries, and produce explo-
sive fumes. If overheating of the pump
occurs:
1. Stop the pump immediately.
2. Ventilate the area.
3. Allow the pump to completely cool.
4. Check the temperature before
opening any covers, plates,
gauges, or plugs.
5. Vent the pump slowly and cau-
tiously.
6. Refer to instructions in this manual
before restarting the pump.
After the pump has been installed, make
certain that the pump and all piping con-
nections are tight, properly supported
and secure before operation.
Do not install and operate a non-explo-
sion proof motor in an explosive atmo-
sphere. Install, connect, and operate
the motor in accordance with The Na-
tional Electric Code and all local codes.
If there is a conflict between the instruc-
tions in the manual accompanying the
unit and The National Electric Code or
the applicable local code, The National
or local code shall take precedence. All
electrical equipment supplied with this
pump conformed to applicable federal
regulations and national codes in effect
on the date of manufacture.

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP FAILS TO
PRIME
60 SERIES PUMPS MR−04021
TROUBLESHOOTING PAGE B − 1
TROUBLESHOOTING − SECTION B
Review all SAFETY information in Section A.
Before attempting to open or service the
pump:
1. Familiarize yourself with this manual.
2. Shut off the incoming power to the
motor and lock it out or take other ac-
tion to ensure that the pump will re-
main inoperative.
3. Allow the pump to completely cool if
overheated.
4. Check the temperature before open-
ing any covers, plates, or plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cautiously.
7. Drain the pump.
Air leak in suction line. Correct leak.
Leaking or worn seal or pump gasket. Check pump vacuum. Replace leak
-ing or worn seal or gasket.
Suction lift too high. Measure lift with vacuum gauge.
Reduce lift and/or friction losses
in suction line.
Product vapor pressure too high. Cool pump and product suction line.
Pump speed too slow. Check driver output; check belts
or couplings for slippage.
Pump running backwards. Check direction of rotation and cor-
rect by interchanging any two mo-
tor leads at control box. (See Pump
Rotation, Section C, Installation And
Operation Manual).
Auxiliary priming device faulty or improp- Repair priming device or check in-
erly installed. stallation.
Strainer clogged. Check strainer and clean if necessary.

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP REQUIRES
TOO MUCH
POWER
EXCESSIVE NOISE
PUMP STOPS OR
FAILS TO DELIVER
RATED FLOW OR
PRESSURE
PUMP CLOGS
FREQUENTLY
MR−04021 60 SERIES PUMPS
TROUBLESHOOTINGPAGE B − 2
Air leak in suction line. Correct leak.
Leaking or worn seal or pump gasket. Check pump vacuum. Replace leak-
ing or worn seal or gasket.
Strainer clogged. Check strainer and clean if necessary.
Suction intake not submerged at proper Check installation and correct sub
level or sump too small. -mergence as needed.
Pump speed too slow. Check driver output; check belts
or couplings for slippage.
Suction lift or discharge head to high. Check piping installation and reduce
suction lift and/or discharge head.
Low or incorrect voltage. Measure control box voltage, both
when pump is running and when
shut-
off.
Pump speed too high. Check driver output; check that
sheaves or couplings are correct-
ly sized.
Discharge head too low. Adjust discharge valve.
Impeller or other wearing parts worn or Replace worn or damaged parts.
damaged. Check that impeller is properly
centered and rotates freely.
Bearing(s) frozen. Disassemble pump and check bear-
ing(s).
Cavitation in pump. Reduce discharge pressure and/or
pump speed.
Pumping entrained air. Locate and eliminate source of air
bubble.
Pump or drive not securely mounted. Secure mounting hardware.
Impeller or other wearing parts worn or Replace worn or damaged parts.
damaged. Check that impeller is properly
centered and rotates freely.
Solids or debris jamming impeller or Check suction line and storage tank
priming pump. for foreign matter. Install or clean
strainer screen.

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
BEARINGS
RUN TOO HOT
60 SERIES PUMPS MR−04021
TROUBLESHOOTING PAGE B − 3
Bearing temperature is high, but within Check bearing temperature regularly
limits. to monitor any increase.
Suction and discharge lines not properly Check piping installation for proper
supported. support.
Low or incorrect lubricant. Check for proper type and level of
lubricant.
Drive misaligned; piping improperly in- Realign drive and piping at operating
stalled. temperature. Add expansion joints if
required.

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 1
PUMP MAINTENANCE AND REPAIR − SECTION C
Review all SAFETY information in Section A.
Follow the instructions on all tags, label and de-
cals attached to the pump.
Do not attempt to service the pump as-
sembly unless all power to the power
source has been shut off and locked out
or other action taken to ensure that the
pump will remain inoperative; other-
wise, injury or death could result.
Use a lifting device with sufficient ca-
pacity. If slings or chains are used to
move the pump or components, make
sure that the load is balanced; other-
wise serious personal injury or death
could result.
The maintenance and repair instructions in this
manual are keyed to the sectional view and the cor-
responding parts identification list. Refer to the
separate Parts List Manual for replacement parts.
Select a suitable location, preferably indoors, to
perform required maintenance. All work must be
performed by qualified personnel.
This Maintenance and Repair Manual provides
troubleshooting and maintenance instructions re-
quired to properly diagnose operational problems,
and to service the pump hydraulic components.
Check TROUBLESHOOTING, Section B to deter-
mine causes and remedies of pump problems.
Disassemble the pump only as far as required.
Lifting
Use lifting equipment with a capacity of at least
five times the weight of the pump, including the
weight of any options or customer-installed acces-
sories. Suction and discharge hoses or piping
must be removed before attempting to lift the
pump.
For the approximate weight of your pump, refer to
the pump specification data sheet or contact your
Gorman-Rupp distributor or the Gorman-Rupp
Company.

60 SERIES PUMPSMR−04021
MAINTENANCE & REPAIRPAGE C − 2
SECTION DRAWING
ATTACHING
HARDWARE
BEARING HOUSING
SUPPORT
SHAFT
KEY
BEARING HOUSING
ASSEMBLY
PIPE PLUG
IMPELLER
KEY
IMPELLER
TAB WASHER
IMPELLER
NUT
ATTACHING
HARDWARE PUMP CASING
IMPELLER
PUMP CASING
GASKET
PIPE PLUG PIPE PLUG
PIPE PLUG
PIPE PLUG
PIPE PLUG
BODY COVER
Figure C−1. Typical 60 Series Pump Model Assembly

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 3
SECTION DRAWING
ATTACHING HARDWARE
PIPE PLUG
SEAL AREA DETAIL
SEAL RETAINING
RING
BEARING CAP
BRG LOCKNUT
BRG CAP GASKET
BRG LOCKWASHER
OUTBOARD
BALL BEARING
AIR VENT
BEARING
HOUSING
IMPELLER
SHAFT
OIL SEAL
OIL
SLINGER RING
OIL RING STOP
OILER
OIL RING STOP
OIL SLINGER RING
OIL SEAL ATTACHING HARDWARE
RETAINING
RING
INBOARD
BALL
BEARING
PIPE
PLUG
AIR VENT FITTING
BODY COVER
GASKET
BODY
COVER
DOWEL
PIN
Figure C−2. Typical 60 Series Bearing Housing Assembly

60 SERIES PUMPSMR−04021
MAINTENANCE & REPAIRPAGE C − 4
PUMP AND SEAL DISASSEMBLY
AND REASSEMBLY
Review all SAFETY information in Section A.
Follow the instructions on all tags, label and de-
cals attached to the pump.
This pump requires little service due to its rugged,
minimum-maintenance design. However, if it be-
comes necessary to inspect or replace the wearing
parts, follow these instructions which are keyed to
the sectional views (see Figures C−1, 2, 3, 4 and
5). Maintenance and repair instructions for the Air
Release Valve Assembly are covered separately in
the specific literature shipped with the unit.
For part numbers and quantities for your specific
pump, refer to the separate Parts List manual ac-
companying the pump.
All parts of this pump except the pump casing may
be serviced without removing mounting hardware
or suction and discharge lines. However, the fol-
lowing instructions assume complete disassembly
is required.
Before attempting to service the pump, shut off the
incoming power to the motor and lock it out, or take
other action to ensure that it will remain inopera-
tive. Close all valves in the suction and discharge
lines and drain the pump casing and group grind
by removing the drain plugs. Clean and reinstall
the drain plugs.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Shut off the incoming power to the
motor and lock it out or take other
action to ensure that the pump will
remain inoperative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau-
tiously.
7. Drain the pump.
This pump is designed to be used with
volatile and/or flammable liquids, be
certain proper safety practices are fol-
lowed before operating or servicing the
pump. Provide adequate ventilation,
prohibit smoking, wear static-resistant
clothing and shoes. Clean up all fuel
spills immediately after occurrence.
Power Source Removal
(Figure C−1)
Remove the coupling guard and loosen the cou-
pling on the pump drive shaft. Separate the power
source and drive components from the pump, and
remove the drive shaft key.
Pump Disassembly
(Figure C−1)
Disconnect the suction and discharge lines from
the pump casing.
Use a suitable hoist and sling to support the bear-
ing housing. Remove the nuts and install two jack-
ing screws (not supplied) in the tapped holes in the
body cover (Figure C−2). Tighten the screws
evenly to prevent binding, and pull the bearing
housing, body cover and assembled parts straight
out of the pump casing.
Remove the pump casing gasket.
Impeller Removal
(Figure C−1)
Immobilize the impeller by inserting a brass rod be-
tween the impeller vanes. Be careful not to dam-

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 5
age the impeller vanes. Straighten the tabs on the
impeller tabwasher, and remove the impeller nut
and tabwasher.
Remove the brass rod. Install two 1/2−13 UNC
capscrews (not supplied) in the tapped holes in the
impeller, and use a suitable puller to remove the im-
peller from the shaft. Retain the impeller key.
NOTE
An alternate method of removing the impeller is to
carefully pry on the back side of the impeller (direct-
ly against two opposing vanes) with equal pressure
until the impeller comes off the shaft.
Body Cover Removal
(Figure C−2)
Remove the attaching hardware and use a soft-
faced mallet to tap around the outside diameter of
the body cover until it separates from the bearing
housing. Remove the body cover gasket, and use
solvent to clean the mating surfaces. Be careful
not to scratch or mar the surfaces.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven-
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain-
ers.
If body cover replacement is necessary, tap out the
dowel pins.
Seal Removal
(Figures C−2 and C−3)
Remove the seal retaining ring with caution; ten-
sion on the seal spring will be released. Remove
the spring centering washer. Lubricate the shaft
and work oil up under the rubber bellows. Slide the
rotating portion of the seal off the shaft, and use a
stiff wire with a hooked end to remove the station-
ary seat and O-ring. Be careful not to damage the
seal faces.
If no further disassembly is required, see Seal In-
stallation.
Shaft and Bearing Removal and Disassembly
(Figure C−2)
When the pump is properly operated and main-
tained, the bearing housing should not require dis-
assembly. Disassemble the shaft and bearings
only when there is evidence of wear or damage.
Shaft and bearing disassembly in the field
is not recommended. These operations
should be performed only in a properly
equipped shop by qualified personnel.
If your pump is equipped with grease lubricated
bearings, there are no provisions for draining or
flushing the bearing housing lubricant. Place a drip
pan under the bearing housing before removing
the shaft and bearings.
NOTE
If your pump is equipped with oil-lubricated bear-
ings, remove the oil cup and drain the bearing cav-
ity before removing the shaft and bearings.
Disengage the attaching hardware and remove the
bearing cap, oil seal and gasket. Use an arbor (or
hydraulic) press to remove the oil seal from the
bearing cap.
Place a block of wood against the impeller end of
the shaft, and tap the shaft and assembled bear-
ings from the bearing housing.
If your pump is equipped with an oil seal in the
bearing housing between the bearing and seal
cavity, use a screwdriver or other suitable tool to re-
move the oil seal from the bearing housing.
After removing the shaft and bearings, clean and
inspect the bearings in place as follows.

60 SERIES PUMPSMR−04021
MAINTENANCE & REPAIRPAGE C − 6
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and bear-
ings are removed.
Clean the bearing housing, shaft and all compo-
nent parts (except the bearings) with a soft cloth
soaked in cleaning solvent. Inspect the parts for
wear or damage and replace as necessary.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven-
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain-
ers.
Clean the bearings thoroughly in fresh cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Bearings must be kept free of all dirt and
foreign material. Failure to do so will great-
ly shorten bearing life. Do not spin dry
bearings. This may scratch the balls or
races and cause premature bearing fail-
ure.
Rotate the bearings by hand to check for rough-
ness or binding and inspect the bearing balls. If ro-
tation is rough or the bearing balls are discolored,
replace the bearings.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the bearing
housing. Replace the bearings, shaft, or bearing
housing if the proper bearing fit is not achieved.
If bearing replacement is required, remove the re-
taining ring from the impeller shaft, and use a bear-
ing puller to remove the inboard bearing from the
shaft.
Straighten the tabs on the bearing washer and re-
move the bearing lock nut and washer. Use a bear-
ing puller to remove the outboard bearing from the
shaft.
Shaft and Bearing Reassembly and Installation
(Figure C−2)
Inspect the shaft for distortion, nicks or scratches,
or for thread damage on the impeller end. Dress
small nicks and burrs with a fine file or emery cloth.
Replace the shaft if defective.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and bear-
ings are removed.
The bearings may be heated to ease installation.
An induction heater, hot oil bath, electric oven, or
hot plate may be used to heat the bearings. Bear-
ings should never be heated with a direct flame or
directly on a hot plate.
NOTE
If a hot oil bath is used to heat the bearings, both the
oil and the container must be absolutely clean. If
the oil has been previously used, it must be thor-
oughly filtered.
Use caution when handling hot bear-
ings to prevent burns.
Heat the bearings to a uniform temperature no
higher than 250_F (120_C), and slide the bearings
onto the shaft, one at a time, until they are fully

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 7
seated. This should be done quickly, in one con-
tinuous motion, to prevent the bearings from cool-
ing and sticking on the shaft.
NOTE
Oil-lubricated bearing housings are equipped with
a double-row inboard ball bearing and oil slinger
rings with stops (see Figure C−2). Position the
stops and slingers on the shaft before installing
bearings. Position the inboard double-row bearing
on the shaft as indicated in Figure C−3.
INSTALLATION OF NEW DEPARTURE OR
BCA/FEDERAL MOGAL 5300W SERIES BEARINGS
(OPEN OR ENCLOSED IMPELLERS)
INSTALLATION OF MRC/SKF 5300M OR
FAFNIR 5300W SERIES BEARINGS
(OPEN OR ENCLOSED IMPELLERS)
LOADING
DIRECTION OF
THRUST
BALL LOADING
GROOVE POSITIONED
AWAY FROM IMPELLER
GROOVE
DIRECTION OF
THRUST
LOADING
BALL LOADING
GROOVE POSITIONED
TOWARD IMPELLER
GROOVE
Figure C−3. Bearing Installation
After the bearings have been installed and allowed
to cool, check to ensure that they have not moved
away from the shaft shoulders in shrinking. If
movement has occurred, use a suitable sized
sleeve and a press to reposition the bearings
against the shaft shoulders.
If heating the bearings is not practical, lubricate the
bearings with light oil, and use a suitable sized
sleeve, and an arbor (or hydraulic) press to install
the bearings on the shaft.
When installing the bearings onto the
shaft, never press or hit against the outer
race, balls, or ball cage. Press only on the
inner race.
Secure the inboard bearing on the shaft with the
bearing retaining ring. Secure the outboard bear-
ing with the tab washer and lock nut.
If your pump is equipped with an inboard oil seal,
lubricate the seal with light oil, and position it in the
bearing housing with the lip positioned as shown in
Figure C− 2. Press the oil seal into the bearing
housing until fully seated.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.
Slide the shaft and assembled bearings into the
bearing housing until the outboard bearing seats
against the bearing housing shoulder. Be careful
not to cut or roll the lip of the oil seal.
Press the oil seal into the bearing cap with the lip
positioned as shown in Figure C− 2. Replace the
bearing cap gasket, and secure the bearing cap
with the attaching hardware. Be careful not to cut
the oil seal lip on the shaft keyway, or roll the lip dur-
ing installation.
NOTE
Impeller shaft endplay should be between .002 and
.010 inch (.051 to .254 mm). Tighten the bearing
cap hardware tight enough to prevent leakage and
obtain the correct endplay. Do not over-tighten.
Lubricate the bearing housing as indicated in LU-
BRICATION.

60 SERIES PUMPSMR−04021
MAINTENANCE & REPAIRPAGE C − 8
Seal Reassembly And Installation
(Figures C−2 and C−3)
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven-
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain-
ers.
The seal is not normally reused because wear pat-
terns on the finished faces cannot be realigned
during reassembly. This could result in premature
failure. If necessary to reuse an old seal in an emer-
gency, carefully wash all metallic parts in fresh
cleaning solvent and allow to dry thoroughly.
Handle the seal parts with extreme care to prevent
damage. Be careful not to contaminate precision
finished faces; even fingerprints on the faces can
shorten seal life. If necessary, clean the faces with a
non-oil based solvent and a clean, lint-free tissue.
Wipe lightly in a concentric pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak-
age. If any components are worn, replace the com-
plete seal; never mix old and new seal parts.
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the shaft,
bellows and stationary seat O-ring with water or a
very small amount of oil, and apply a drop of light
lubricating oil on the finished faces. Assemble the
seal as follows, (see Figure C−4).
IMPELLER
SHAFT
SPRING
IMPELLER
SPRING
RETAINER
RETAINING
RING
RETAINER BELLOWS
ROTAT-
ING ELE-
MENT
STATIONARY
ELEMENT
O-RING
BEARING
HOUSING
Figure C−4. Seal Assembly

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 9
This seal is not designed for operation at
temperatures above 160_F (71_C). Do not
use at higher operating temperatures.
Inspect the impeller shaft for distortion, nicks,
scratches, or damage to the shaft threads. Dress
small nicks and burrs with a fine file or emery cloth.
If the shaft is defective, refer to Shaft And Bearing
Disassembly and replace the shaft.
Lubricate the O-ring with a light coat of oil and in-
stall it in the stationary seat. Press the seat and O-
ring into the bearing housing until fully seated. A
push tube cut from a length of plastic pipe would
aid this installation. The I.D. of the tube should be
slightly larger than the O.D. of the shaft. Be careful
not to damage the seal face. After installation, wipe
the seal face in a concentric pattern with a clean,
lint-free cloth.
NOTE
It is recommended that a tapered sleeve (see Fig-
ure C−5) be installed over the shaft keyway to ease
installation of the rotating portion of the seal. This
tool can be made from steel tubing or black pipe.
0.9372
[23,8]
2.0
[50,8]
1.25
[31,8]
4 1/2_APPROX.
32
SLEEVE IMPELLER
SHAFT
SEAL
AREA
KEYWAY
SLEEVE DIMENSIONS SLEEVE INSTALLED
DIMENSIONS:
INCHES
[MILLIMETERS]
Figure C−5. Seal Installation Sleeve
Lubricate the tapered sleeve and position it on the
shaft. Position the rotating portion of the seal (con-
sisting of the retainer, bellows and rotating ele-
ment) on the sleeve, and apply even pressure
against the shoulder of the seal retainer until the ro-
tating subassembly slides onto the shaft and the
seal faces contact. A push tube cut from a piece of
plastic tubing would aid this installation. The I.D. of
the tube should be approximately the same diame-
ter as the I.D. of the seal spring.
Remove the tapered sleeve and install the seal
spring and spring centering washer. Secure the
seal with the retaining ring.
Body Cover Installation
NOTE
If the body cover requires replacement, refer to the
special instructions in Body Cover Replacement
at this time.
(Figure C−2)
Install a new body cover gasket and use a soft-
faced mallet to tap the body cover into place on the
dowel pins. Secure the body cover with the attach-
ing hardware. Be sure the dowel pins are full
seated into the body cover.
Impeller Installation
(Figure C−1)
Inspect the impeller and replace it if cracked or
badly worn. Earlier design impellers included wear
rings and groove pins to secure them to the impel-
ler. The wear rings were an integral part of the im-
peller, and are not available as replacement items.
The current impeller design does not include wear
rings. If your impeller is equipped with wear rings
and they require replacement, the entire impeller
must be replaced with the new design (consult the
factory for the new impeller part number).
Install the impeller key, and slide the impeller onto
the shaft. Immobilize the impeller, and secure it
with the tab washer and impeller nut. Bend the tabs
on the washer over the impeller nut.

60 SERIES PUMPSMR−04021
MAINTENANCE & REPAIRPAGE C − 10
Body Cover Replacement
(Figure C−4 or C−5)
If the body cover requires replacement, it
is strongly recommended that the pump
be returned to the factory. Fitting proce-
dures involve extremely close tolerances
which are critical to efficient operation.
These procedures are difficult to accom-
plish outside the factory.
If the body cover must be replaced in the field,
dowel holes in the body cover must be drilled and
reamed after the bearing housing, body cover and
impeller have been fully reassembled.
Install a new body cover gasket.
Position the body cover on the shaft and secure
with the attaching hardware, but do not fully tight-
en the capscrews until after the impeller has been
installed.
Install the impeller as described in Impeller Instal-
lation. Do not bend the tabs over on the impeller
washer (Figure C−1) until the shaft is rotated to
check for rubbing of the inboard impeller wear ring
against the body cover. If the wear ring rubs, tap
the body cover with a mallet until the impeller ro-
tates freely. Now tighten the hardware securing the
body cover.
After fully securing the body cover, bend the tabs of
the impeller washer over the impeller nut.
Measure the length of the dowel pins. Use the ex-
isting dowel pin holes in the bearing housing as
guides to drill and ream two new dowel pin holes
(.312 inch or 7,9 mm finished diameter) into the
body cover. The holes should be just deep enough
so the pins will be flush with the bearing housing
when installed. Do not drill through the body cover.
Be careful not to damage the holes in the bearing
housing or body cover with the drill bit or reamer.
Instal the dowel pins in the new holes.
Final Pump Assembly
(Figure C−1)
Install the pump casing gasket. Install the bearing
housing assembly and body cover in the pump
casing, and secure it with the nuts.
For part numbers and quantities for your specific
pump, refer to the separate Parts List manual ac-
companying the pump.
Install the drive shaft key, and connect the coupling
and power source. Install the coupling guards.
LUBRICATION
Seal Assembly
The seal assembly is lubricated by the medium be-
ing pumped. No additional lubrication is required.
Grease Lubricated Bearings
Bearings used in grease-lubricated bearing hous-
ings are permanently sealed and lubricated by the
manufacturer, and no additional lubrication is re-
quired. However, to minimize the danger of mois-
ture contamination due to temperature changes,
the bearing housing is also partially filled with
grease.
When overhauling the bearing housing, remove
the air vent fitting, install a lubrication fitting, and fill
the cavity approximately one-third full (approxi-
mately 5 ounces or 15 ounces (142 g or 425 g) of
grease depending on the pump model).
Oil Lubricated Bearings
The bearing housing was fully lubricated when
shipped from the factory. Check the oil level regu-
larly at the oil cup and maintain it at the top of the
cup. When lubrication is required, remove the air
vent and add SAE No. 30 non-detergent oil
through the hole. Do not over-lubricate. Over-lubri-
cation can cause the bearings to over-heat, result-
ing in premature bearing failure.
Under normal conditions, drain the bearing hous-
ing once each year and refill with clean oil. Change
the oil more frequently if the pump is operated con-
tinuously or installed in an environment with rapid
temperature change.

MR−04021
60 SERIES PUMPS
MAINTENANCE & REPAIR PAGE C − 11
Monitor the condition of the gearbox lubri-
cant regularly for evidence of rust or mois-
ture condensation. This is especially im-
portant in areas where variable hot and
cold temperatures are common.
For cold weather operation, consult the factory or a
lubricant supplier for the recommended grade of
oil.