GORMAN-RUPP PUMPS SM Series Owner's manual

PUBLICATION NUMBER
OM-04417
February 20, 1996
Rev. E 07‐24‐18
GORMAN‐RUPP PUMPS
www.grpumps.com
e1996 Gorman‐Rupp Pumps Printed in U.S.A.
SM SERIES
SUBMERSIBLE PUMPS

OM-04417 SM SERIES PUMPS
PAGE I - 1INTRODUCTION
INTRODUCTION
Thank You for purchasing a Gorman‐Rupp SM
Series Pump. Read this manual carefully to learn
how to safely install and operate 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.
Each set consists of three parts; the Installation/
Operation Manual contains essential information
on installing and operating the pump, and on mak
ing electrical connections. However, since pump
installations are seldom identical, some of the in
formation only summarizes general recommenda
tions and practices required to inspect, position,
and arrange the pump and piping.
The Parts List Manual provides performance
curve(s), a pump model cross‐section drawing,
and parts list for your pump.
The Maintenance and Repair Manual provides
troubleshooting and maintenance instructions re
quired to properly diagnose operational problems,
and to service the pump hydraulic components.
Pump motor maintenance may be performed only
by a Gorman‐Rupp authorized repair facility, or the
factory. Otherwise, the pump warranty will be ne
gated, and damage to the pump, and injury or
death to personnel can result. Contact the factory
for the authorized repair facility closest to you.
The integral electric motor must be operated
through the control box furnished with the pump.
The pump and control comply with MSHA sched
ule 2G regulations. Control boxes and other con
trol devices are not covered in this manual.
Pump construction may be aluminum or stainless
steel. The pump may be operated fully or partially
submerged, since the integral air‐filled electric mo
tor is thermally protected and cooled by the liquid
being pumped.
Because pump installations are seldom identical,
this manual cannot possibly provide detailed in
structions and precautions for every aspect of
each specific application. Therefore, it is the re
sponsibility of the owner/installer of the pump to
ensure that applications not addressed in this
manual are performed only after establishing that
neither operator safety nor pump integrity are com
promised by the installation. Pumps and related
equipment must be installed and operated ac
cording to all national, local and industry stan
dards.
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
INSTALLATION - SECTION B
GENERAL INFORMATION PAGE B - 1.....................................................
GORMAN‐RUPP MSHA PUMP INSPECTION FORM PAGE B - 2...............................
PREINSTALLATION INSPECTION PAGE B - 3...............................................
LUBRICATION PAGE B - 3................................................................
PUMP SPECIFICATIONS PAGE B - 3......................................................
PUMP INSTALLATION PAGE B - 5.........................................................
PIPING PAGE B - 11.....................................................................
ELECTRICAL CONNECTIONS PAGE B - 11.................................................
OPERATION - SECTION C
GENERAL INFORMATION PAGE C - 1.....................................................
PUMP OPERATION PAGE C - 1...........................................................
STARTING, STOPPING, AND OPERATIONAL CHECKS PAGE C - 3............................
COLD WEATHER PRESERVATION PAGE C - 4..............................................
LUBRICATION PAGE C - 4................................................................

OM-04417SM SERIES PUMPS
PAGE I - 2 INTRODUCTION
RECORDING MODEL AND
SERIAL NUMBERS
Please record the pump model, serial number, volt
age, and motor frame size in the spaces provided
below. Your Gorman‐Rupp distributor needs this
information when you require parts or service.
Pump Model:
Serial Number:
Voltage:
Phase:
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.

SM SERIES OM-04417
PAGE A - 1SAFETY
SAFETY ‐ SECTION A
This information applies to SM Series
Submersible motor driven pumps and
control boxes.
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 open or service the
pump:
1. Familiarize yourself with this man
ual.
2. Lock out incoming power to the
control box to ensure that the
pump will remain inoperative.
3. Allow the pump to cool if over
heated.
4. Close the discharge valve (if
used).
The pump is designed to be operated
through the control box furnished with
the pump. The control box provides
overload protection and power control.
Do not connect the pump motor directly
to the incoming power lines.
The electrical power used to operate
this pump is high enough to cause inju
ry or death. Obtain the services of a qu
alified electrician to make all electrical
connections. Make certain that the
pump and enclosure are properly
grounded. Be sure the incoming power
matches the voltage and phase of the
pump and control before connecting
the power source. Do not run the pump if
the voltage is not within the limits.
The electrical power used to operate
this pump is high enough to cause inju
ry or death. Make certain the control
handle on the control box is in the off po
sition and locked out, or the power sup
ply to the control box has been other
wise cut off and locked out, before at
tempting to open or service the pump
assembly. Tag electrical circuits to pre
vent accidental start‐up.
All electrical connections must be in ac
cordance with MSHA Schedule 2G. If
there is a conflict between the instruc
tions provided and MSHA specifica
tions, MSHA specifications shall take
precedence. All electrical equipment
supplied with this pump was in confor
mance with MSHA requirements in ef
fect on the date of manufacture. Failure
to follow applicable specifications, or
substitution of electrical parts not
supplied or approved by the manufac
turer, can result in severe injury or
death.
This pump is not designed to pump vol
atile, explosive, or flammable materials.

SM SERIESOM-04417
PAGE A - 2 SAFETY
Refer to the chart in Installation, Section
B for the basic materials of construction
for each pump covered in this manual.
Do not attempt to pump any liquids for
which your pump is not approved, or
which may damage the pump or endan
ger personnel as a result of pump fail
ure. Consult the factory for specific
application data.
Death or serious personal injury and
damage to the pump or components
can occur if proper lifting procedures
are not observed. Make certain that
hoists, chains, slings or cables are in
good working condition and of suffi
cient capacity and that they are posi
tioned so that loads will be balanced
and the pump or components will not be
damaged when lifting. Do not attempt to
lift this pump by the motor or control
cables, or the piping. Attach proper lift
ing equipment to the lifting bail fitted on
the pump. Lift the pump or component
only as high as necessary and keep per
sonnel away from suspended objects.
After the pump has been installed, make
certain that the pump and all piping or
hose connections are secure before op
eration.
Approach the pump cautiously after it
has been running. Although the motor is
cooled by the liquid being pumped, nor
mal operating temperatures can be high
enough to cause burns. The tempera
ture will be especially high if operated
against a closed discharge valve. Never
operate against a closed discharge
valve for long periods of time.
Do not open the control box in an explo
sive atmosphere. When sealed, the con
trol box is explosion proof, to prevent
the ignition of combustible gases.
Opening the box in an explosive atmo
sphere could result in fire or explosion.
Pumps and related equipment must be in
stalled and operated according to all na
tional, local and industry standards.

OM-04417SM SERIES
PAGE B - 1INSTALLATION
INSTALLATION - SECTION B
Review all SAFETY information in Section A.
Since pump installations are seldom identical, this sec
tion is intended only to summarize recommended instal
lation practices for the pump and control box. If there are
any questions concerning your specific application, con
tact your Gorman‐Rupp distributor or the Gorman‐Rupp
Company
All functions performed by the customer on the pump or
control must be done in accordance with MSHA schedule
2G regulations to ensure the explosion‐proof integrity. No
alterations of original design may be made without the
consent of the Gorman‐Rupp Company and MSHA.
To retain “permissibility” of this equipment, the
following conditions shall be satisfied:
1. GENERAL SAFETY. Frequent inspection
shall be made. All electrical parts, including
the portable cable and wiring, shall be kept in
a safe condition. There shall be no openings
into the casings of the electrical parts. A per
missible distribution box shall be used for
connection to the power circuit unless con
nection is made in fresh intake air. The ma
chine frame shall be effectively grounded.
The power wires shall not be used for ground
ing. The incoming voltage must match the
voltage rating of the motor.
2. SERVICING. Explosion‐proof enclosures
shall be restored to the state of original safety
with respect to all flame arresting paths, lead
entrances, etc., following disassembly for re
pair or rebuilding, whether by the owner or an
independent shop.
3. FASTENING. All bolts, nuts, screws, and oth
er means of fastening, and also threaded cov
ers, shall be in place, properly tightened and
secured.
4. RENEWALS AND REPAIRS. Inspections, re
pairs, or renewals of electrical parts shall not
be made unless the portable cable is discon
nected from the circuit furnishing power, and
the cable shall not be connected again until all
parts are properly reassembled. Special care
shall be taken in making renewals or repairs.
Leave no parts off. Use replacement parts ex
actly like those furnished by the manufacturer.
When any lead entrance is disturbed, the
original leads or exact duplicates thereof shall
be used and stuffing boxes shall be repacked
in the approved manner.
5. CABLE REQUIREMENTS. A flame‐resistant
portable cable bearing a MSHA assigned
identification number, adequately protected
by an automatic circuit‐interrupting device,
shall be used. Special care shall be taken in
handling the cable to guard against mechani
cal injury and wear. Splices in portable cables
shall be made in a workmanlike manner, me
chanically strong, and well insulated. One
temporary splice may be made in any trailing
cable. Such trailing cable may only be used
for the next 24‐hour period. No temporary
splice shall be made in a trailing cable within
25 feet of the machine, except cable reel
equipment. Connections and wiring to the out
by end of the cable shall be in accordance
with recognized standards of safety.

OM-04417 SM SERIES
PAGE B - 2 INSTALLATION
GORMAN−RUPP MSHA PUMP INSPECTION FORM
INSPECTOR____________________________ DATE____________
MODEL NO.__________________________________SERIAL NO.____________
UNIT ELECTRICAL RATING:
H.P.________, VOLTS________, PUMP AMPS________, HERTZ________
STARTER X/P NO: XP3026−1 (CONTROL WITHOUT FLOAT)
OR
18−XPA040007−0 (CONTROL WITH FLOAT)
MOTOR CABLE:
___No. 12; 7 Conductor; Type SPC; .89 + .03 O.D.; Heavy Jacketed; Royal – MSHA 122;
___No. 8; 9 Conductor; Type SPC; 1.05 + .03 O.D.; Heavy Jacketed; Royal – MSHA 122;
___No. 6; 9 Conductor; Type SPC; 1.25 + .04 O.D.; Heavy Jacketed, Royal – MSHA 122;
Length______________________
ITEM AREA OF INSPECTION ACC. REJ. CORRECTED
1. Are lockwashers (or equivalent) provided for all explo-
sion proof enclosure fastenings?
2. Are all plane joints securely fastened so that a .005−inch
feeler gauge cannot be inserted?
3. Is motor plug secured with lock clip?
4. Are all electrical connections secure?
5. Are all electrical connections insulated where necessary
and per appropriate drawing?
6. Are packing glands properly packed so that 1/8−inch
clearance remains between packaging nut and stuffing
box?
7. Are packing nut and cable grip secured with lock wire and
lead seal?
8. Was pump leak tested?
9. Was pump and control electrically tested?
10. Was pump water tested?
11. Are pump, cable, and control assembled together properly
per appropriate drawing?
Comments:
NOTE: Fill out form completely and “rejections” must be corrected and re−inspected. Inspector must initial and date
when corrective action was taken. 10/9/87
Form CD GL−02128 Rev 6/05
Doc# 152708
This form not to be revised
without approval of MSHA.

OM-04417SM SERIES
PAGE B - 3INSTALLATION
Pump Model Designation
Following is a description of the model numbering system
for SM Series pumps. These submersible pumps are
available in a range of sizes. Refer to the following chart
to identify the size for your specific pump model.
SM
Series
Discharge
Size
Pump
Hydraulics
Pump
Construction
H.P.
(If Shown)
Voltage/Phase
3 C 1 460/3- X6
Pump Model
Review all SAFETY information in Section A.
This section is intended only to summarize recom
mended installation practices for the pump and control
box. If there are any questions concerning your specific
application, contact your Gorman‐Rupp distributor or the
Gorman‐Rupp Company.
PREINSTALLATION INSPECTION
The pump and control box were inspected and tested be
fore shipment from the factory. Before installation, in
spect the pump for damage which may have occurred
during shipment. Check as follows:
a. Inspect the pump assembly for cracks, dents, dam
aged threads, and other obvious damage.
b. Check for and tighten loose attaching hardware.
Since gaskets tend to shrink after drying, check for
loose hardware at mating surfaces.
c. The standard pump is furnished with 50 feet of
power cable. Inspect the cable for cuts or damage.
d. Inspect the control box for cracks, dents, and other
obvious damage.
e. Check that all control box components are securely
attached to their mounting surfaces, and the electri
cal connections are tight and free of corrosion.
f. Compare the amperes, phase, voltage and hertz in
dicated on the motor nameplate to the ratings indi
cated for the control box.
g. Carefully read all tags, decals, and markings on the
pump assembly and the control box, and perform all
duties as indicated.
h. Check the pump and motor for any oil leaks. An oil
leak may indicate a cut O‐ring or other damage.
i. If the pump and control box have been stored for
more than 12 months, some of the components or
lubricants may have exceeded their maximum shelf
life. These must be inspected or replaced to en
sure maximum pump service.
If the maximum shelf life has been exceeded, or if any
thing appears to be abnormal, contact your Gorman‐
Rupp distributor or the factory to determine the repair or
updating policy. Do not put the pump into service until
appropriate action has been taken.
LUBRICATION
This pump series utilizes one lubrication cavity, located
just behind the seal plate. It is filled with premium quality
submersible pump oil which lubricates two shaft seals.
The motor operates in air and requires no lubrication.
The lower shaft seal prevents liquid from entering the lu
brication cavity, while the upper shaft seal prevents oil
leakage into the motor. The upper seal also acts as
backup protection in the event of lower seal failure.
The lubrication cavity was fully lubricated when shipped
from the factory. Check the oil level before installing the
pump (see LUBRICATION in MAINTENANCE AND RE
PAIR). An additional quart of oil has been provided with
the pump to “top off” the oil cavity. If the oil level is abnor
mally low, determine the cause before putting the pump
into service.
PUMP SPECIFICATIONS
See Tables B‐1 and B‐2 for pump specifications and mo
tor data.

OM-04417 SM SERIES
PAGE B - 4 INSTALLATION
Table B‐1. Pump Specifications
Model
Voltage/
Phase
Motor
Horsepow
er
Pump
Speed
(RPM)
Full
Load
Amperes
No
Load
Amperes
Locked
Rotor
Amperes
Discharge
Size
(NPT)
SM2E 460/3
575/3
3.5 3450 4.5
3.6
2
1.6
25
20
2 INCH
SM2F 460/3
575/3
1 3450 2.0
1.6
1.5
1.2
10.5
8.4
2 INCH
SM3B 460/3
575/3
6 3450 10.8
8.6
4
3.2
56
45
3 INCH
SM3C 460/3
575/3
6 3450 10.8
8.6
4
3.2
56
45
3 INCH
SM4C 460/3
575/3
10 3450 17
13.6
3.5
2.8
76
61
4 INCH
SM4D 460/3
575/3
10 3450 17
13.6
3.5
2.8
76
61
4 INCH
SM4E 460/3
575/3
20 3450 26
20.8
4.4
3.5
170
136
4 INCH
SM4F 460/3
575/3
20 3450 26
20.8
4.4
3.5
170
136
4 INCH
SM4G 460/3
575/3
30 3450 38.5
30.8
7.5
6
213
170
4 INCH
SM4H 460/3
575/3
10 3450 17
13.6
3.5
2.8
76
61
4 INCH
SM4J 460/3
575/3
60 3450 66
52.8
11
8.8
500
400
4 INCH
SM4K 460/3
575/3
15 3450 18
14.4
3.5
2.8
125
100
4 INCH
SM6D 460/3
575/3
30 3450 38.5
30.8
7.5
6
213
170
6 INCH
SM6E 460/3
575/3
60 3450 66
52.8
11
8.8
500
400
6 INCH
Table B‐2. Additional Specifications
Pump
Model
Voltage/
Phase
Approximate Weight
Lbs. (kg) Seal Cavity
Pump 50Ft. Cable
Oil Capacity
Ounces
(Liters)
Filling Position
(H)orizontal
(V)ertical
SM2E1
SM2E18
SM2E65
460/3
575/3
57 (26)
57 (26)
84 (38)
23 (10,4) 8 (0,2) ONLY
NOTE: DO NOT
OVER FILL
H
SM2F1 460/3
575/3
43 (20) 23 (10,4) 8 (0,2) ONLY
NOTE: DO NOT
OVER FILL
H
SM3B1
SM3B18
SM3B65
460/3
575/3
106 (48)
109 (49)
205 (93)
23 (10,4) 16 (0,5) H

OM-04417SM SERIES
PAGE B - 5INSTALLATION
Table B‐2. Additional Specifications (continued)
Pump
Model
Seal Cavity
Approximate Weight
Lbs. (kg)
Voltage/
Phase
Pump
Model
Filling Position
(H)orizontal
(V)ertical
Oil Capacity
Ounces
(Liters)50Ft. CablePump
Voltage/
Phase
SM3C1
SM3C18
SM3C65
460/3
575/3
106 (48)
109 (49)
205 (93)
23 (10,4) 16 (0,5) H
SM4C1
SM4C18
SM4C65
460/3
575/3
183 (83)
188 (85)
303 (137)
23 (10) 20 (0,6) H
SM4D1
SM4D18
SM4D65
460/3
575/3
173 (79)
173 (79)
281 (128)
23 (10) 20 (0,6) H
SM4E1 460/3
575/3
302 (137) 38 (17) 32 (1) H
SM4F1 460/3
575/3
302 (137) 38 (17) 32 (1) H
SM4G1 460/3
575/3
541 (245) 38 (17) 112 (3,3) V
SM4H1 460/3
575/3
183 (83) 23 (10) 20 (0,6) H
SM4J1 460/3
575/3
774 (351) 53 (24) 144 (4,3) V
SM4K1 460/3
575/3
253 (115) 23 (10) 32 (1) H
SM6D1 460/3
575/3
538 (244) 38 (17) 112 (3,3) V
SM6E1 460/3
575/3
765 (347) 53 (24) 144 (4,3) V
Pump Dimensions
For the approximate physical dimensions of your pump,
refer to the pump specification data sheet or contact your
Gorman‐Rupp distributor or the Gorman‐Rupp Com
pany.
PUMP INSTALLATION
When installing or servicing the pump or con
trols, follow all requirements for the installa
tion of wiring or electrical equipment as out
lined in the National Electric Code. Follow all
MSHA safety requirements. Failure to ob
serve these requirements could result in inju
ry or death to personnel.
Do not allow the free end of the power cable to
enter the liquid being pumped. The free end of
the cable must be kept dry to prevent liquid from
wicking through the cable and into the motor.
NOTE
Refer to the performance curve in the Parts List Manual
when determining the most efficient piping installation.

OM-04417 SM SERIES
PAGE B - 6 INSTALLATION
Table B‐3. MSHA Specifications And Approval Data
MSHA Approval Number (All Models) 2G-3971A-0.........................................
Commonwealth of Pennsylvania Approval Number (As Noted)
Model MSHA No.
Motor
G‐R P/N Trailing Cable Motor Cable
PA
No.
SM2E1‐X3.5 460/3
SM2E1‐X3.5 575/3
SM2E18‐X3.5 460/3
SM2E18‐X3.5 575/3
SM2E65‐X3.5 460/3
SM2E65‐X3.5 575/3
XP-3142-0
XP-3142-0
XP-3142-1
XP-3142-1
XP-3142-1
XP-3142-1
47111-100
47111-101
47111-070
47111-071
47111-068
47111-069
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12 AWG,
7 Conductor Type SPC,
0.89” $0.03” O.D.,
Heavy Jacketed 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length 460V - 1400
Ft., 575V - 3000 Ft.
BFE-637-77
SM2F1‐X1 460/3
SM2F1‐X1 575/3
XP-3862-0
XP-3862-0
16368
16368
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12 AWG,
7 Conductor Type SPC,
0.89” "0.03” O.D.,
Heavy Jacketed 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length 460V - 3500
Ft., 575V - 4000 Ft.
N/A
SM3B1‐X6 460/3
SM3B1‐X6 575/3
SM3B18‐X6 460/3
SM3B18‐X6 575/3
SM3B65‐X6 460/3
SM3B65‐X6 575/3
XP-3185-0
XP-3185-0
XP-3185-1
XP-3185-1
XP-3185-1
XP-3185-1
47111-104
47111-105
47111-082
47111-083
47111-086
47111-087
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12 AWG,
7 Conductor Type SPC,
0.89” "0.03” O.D.,
Heavy Jacketed 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length 460V - 850 Ft.,
575V - 1400 Ft.
BFE-637-77
SM3C1‐X6 460/3
SM3C1‐X6 575/3
SM3C18‐X6 460/3
SM3C18‐X6 575/3
SM3C65‐X6 460/3
SM3C65‐X6 575/3
XP-3185-0
XP-3185-0
XP-3185-1
XP-3185-1
XP-3185-1
XP-3185-1
47111-106
47111-107
47111-084
47111-085
47111-088
47111-089
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12 AWG,
7 Conductor Type SPC,
0.89” "0.03” O.D.,
Heavy Jacketed 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length 460V - 850 Ft.,
575V - 1400 Ft.
BFE-637-77
SM4C1‐X10 460/3
SM4C1‐X10 575/3
SM4C18‐X10 460/3
SM4C18‐X10 575/3
SM4C65‐X10 460/3
SM4C65‐X10 575/3
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
16772
16772
16772
16772
16772
16772
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12
AWG., 7 Conductor
Type SPC, 0.89” "
0.03” O.D., Heavy Jack
eted 90_C 600/2000
Volt Royal ‐ MSHA 122.,
Flame Resistant, Max.
Cable Length: 460V -
450 Ft., 575V - 850 Ft.
BFE-637-77

OM-04417SM SERIES
PAGE B - 7INSTALLATION
Table B‐3. MSHA Specifications And Approval Data (continued)
MSHA Approval Number (All Models) 2G-3971A-0.........................................
Commonwealth of Pennsylvania Approval Number (As Noted)
Model
PA
No.Motor CableTrailing Cable
Motor
G‐R P/NMSHA No.
SM4D1‐X10 460/3
SM4D1‐X10 575/3
SM4D18‐X10 460/3
SM4D18‐X10 575/3
SM4D65‐X10 460/3
SM4D65‐X10 575/3
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
16772
16772
16772
16772
16772
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12
AWG., 7 Conductor
Type SPC, 0.89” "
0.03” O.D., Heavy Jack
eted 90_C 600/2000
Volt Royal ‐ MSHA 122.,
Flame Resistant, Max.
Cable Length: 460V -
450 Ft., 575V - 850 Ft.
BFE-637-77
SM4E1‐X20 460/3
SM4E1‐X20 575/3
XP-3691-0
XP-3691-0
15951
15951
No. 6, 3 Conductor,
Type G‐GC, 1.05” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
260 Amps Max., For
460V Motors And 210
Amps Max. For 575V
Motors MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
P‐122‐MSHA. G‐R P/N
47325-010. #8 AWG.,
9 Conductor Type SPC,
1.05” "0.03” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 800 Ft.,
575V - 1400 Ft.
BFE-33-13
SM4F1‐X20 460/3
SM4F1‐X20 575/3
XP-3691-0
XP-3691-0
15951
15951
No. 6, 3 Conductor,
Type G‐GC, 1.05” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
260 Amps Max., For
460V Motors And 210
Amps Max. For 575V
Motors MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
P‐122‐MSHA. G‐R P/N
47325-010. #8 AWG.,
9 Conductor Type SPC,
1.05” "0.03” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 800 Ft.,
575V - 1400 Ft.
BFE-36-13

OM-04417 SM SERIES
PAGE B - 8 INSTALLATION
Table B‐3. MSHA Specifications And Approval Data (continued)
MSHA Approval Number (All Models) 2G-3971A-0.........................................
Commonwealth of Pennsylvania Approval Number (As Noted)
Model
PA
No.Motor CableTrailing Cable
Motor
G‐R P/NMSHA No.
SM4G1‐X30 460/3
SM4G1‐X30 575/3
XP-3690-0
XP-3690-0
15952
15952
No. 6, 3 Conductor,
Type G‐GC, 1.05” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
385 Amps Max., For
460V Motors And 310
Amps Max. For 575V
Motors MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
Note: Instantaneous
Trip Amps Set At 385
Amps Max. For 460V,
and 310 Amps Max. for
575V To Allow For Mo
tor Starting Current.
P‐122‐MSHA. G‐R P/N
47325-010. #8 AWG.,
9 Conductor Type SPC,
1.05” "0.03” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 400 Ft.,
575V - 850 Ft.
BFE-34-13
SM4H1‐X10 460/3
SM4H1‐X10 575/3
SM4H18‐X10 460/3
SM4H18‐X10 575/3
SM4H65‐X10 460/3
SM4H65‐X10 575/3
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
7J-97016-0
16772
16772
16772
16772
16772
16772
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12
AWG., 7 Conductor
Type SPC, 0.89” "
0.03” O.D., Heavy Jack
eted 90_C 600/2000
Volt Royal ‐ MSHA 122.,
Flame Resistant, Max.
Cable Length: 460V -
450 Ft., 575V - 850 Ft.
BFE-37-13
SM4J1‐X60 460/3
SM4J1‐X60 575/3
XP-3689-0
XP-3689-0
15953
15953
No. 4, 3 Conductor,
Type G‐GC, 1.19” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
660 Amps Max., For
460V Motors And 530
Amps Max. For 575V
Motors, MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
Note: Instantaneous
Trip Amps Set At 660
Amps Max. For 460V,
and 530 Amps Max. for
575V To Allow For Mo
tor Starting Current.
P‐122‐MSHA. G‐R P/N
47325-012. #6 AWG.,
9 Conductor Type SPC,
1.25” "0.04” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 350 Ft.,
575V - 700 Ft.
BFE-35-13

OM-04417SM SERIES
PAGE B - 9INSTALLATION
Table B‐3. MSHA Specifications And Approval Data (continued)
MSHA Approval Number (All Models) 2G-3971A-0.........................................
Commonwealth of Pennsylvania Approval Number (As Noted)
Model
PA
No.Motor CableTrailing Cable
Motor
G‐R P/NMSHA No.
SM4K1‐X15 460/3
SM4K1‐X15 575/3
XP-3932-0
XP-3932-0
16521
16521
No. 8, 3 Conductor,
Type G‐GC, .97” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
200 Amps Max., MSHA
Flame Resistance,
600/2000 Volt, 90_C.
Max. Length: 500 Ft. ‐
Customer Furnished
P‐122‐MSHA. G‐R P/N
47351-011. #12
AWG., 7 Conductor
Type SPC, 0.89” "
0.03” O.D., Heavy Jack
eted 90_C 600/2000
Volt Royal ‐ MSHA 122.,
Flame Resistant, Max.
Cable Length: 460V -
450 Ft., 575V - 800 Ft.
BFE-38-13
SM6D1‐X30 460/3
SM6D1‐X30 575/3
XP-3690-0
XP-3690-0
15952
15952
No. 6, 3 Conductor,
Type G‐GC, 1.05” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
385 Amps Max., For
460V Motors And 310
Amps Max. For 575V
Motors MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
Note: Instantaneous
Trip Amps Set At 385
Amps Max. For 460V,
and 310 Amps Max. for
575V To Allow For Mo
tor Starting Current.
P‐122‐MSHA. G‐R P/N
47325-010. #8 AWG.,
9 Conductor Type SPC,
1.05” "0.03” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 400 Ft.,
575V - 850 Ft. N/A
SM6E1‐X60 460/3
SM6E1‐X60 575/3
XP-3689-0
XP-3689-0
15953
15953
No. 4, 3 Conductor,
Type G‐GC, 1.19” $
.03” O.D., Protected By
An Instantaneous Trip
Circuit Breaker, Set At
660 Amps Max., For
460V Motors And 530
Amps Max. For 575V
Motors, MSHA Flame
Resistance, 600/2000
Volt, 90_C. Max.
Length: 500 Ft. ‐ Cus
tomer Furnished
Note: Instantaneous
Trip Amps Set At 660
Amps Max. For 460V,
and 530 Amps Max. for
575V To Allow For Mo
tor Starting Current.
P‐122‐MSHA. G‐R P/N
47325-012. #6 AWG.,
9 Conductor Type SPC,
1.25” "0.04” O.D., Yel
low Jacket. 90_C
600/2000 Volt Royal ‐
MSHA 122., Flame Re
sistant, Max. Cable
Length: 460V - 350 Ft.,
575V - 700 Ft. N/A

OM-04417 SM SERIES
PAGE B - 10 INSTALLATION
Lifting
Pump unit weights can vary depending on the material of
construction and length of cable on the unit. Check the
shipping tag on the unit packaging for the actual weight,
and use lifting equipment with appropriate capacity. Re
move all customer‐installed equipment such as suction
and discharge hoses or piping before attempting to lift ex
isting, installed units.
Refer to Table B‐2 for the approximate maximum weight
for each pump.
Death or serious personal injury and damage
to the pump or components can occur if prop
er lifting procedures are not observed. Make
certain that hoists, chains, slings or cables
are in good working condition and of suffi
cient capacity and that they are positioned so
that loads will be balanced and the pump or
components will not be damaged when lift
ing. Do not attempt to lift this pump by the mo
tor or control cables, or the piping. Attach
proper lifting equipment to the lifting bail
fitted on the pump. Lift the pump or compon
ent only as high as necessary and keep per
sonnel away from suspended objects.
Positioning the Pump
The pump is designed to operate fully or partially sub
merged. It may also be operated in air for extended peri
ods. The rotating parts are oil lubricated, and the motor is
cooled by a constant flow of air discharged through inter
nal passages.
The pump will operate if positioned on its side, but this is
not recommended because the motor torque could
cause the pump to roll during operation.
The pump should be independently secured and sup
ported by the lifting device fitted on the pump. If the appli
cation involves a lot of debris, protect the pump from ex
cessive wear and clogging by suspending it in a perfo
rated barrel or culvert pipe. If the bottom is heavily sludge‐
covered, rest the pump on support blocks or suspend it
from a raft or similar device near the surface of the liquid.
See Figure B‐1 for typical pump installations.
BY BAIL IN PERFORATED CULVERT PIPE ON SUPPORTS
Figure B‐1. Typical Pump Installations
All liquid entering the pump must pass through a strainer
screen. Any spherical solids which pass through the
screen will pass through the pump.
NOTE
Before actual operation, check the direction of impeller ro
tation to ensure that the pump is properly wired to the con

OM-04417SM SERIES
PAGE B - 11INSTALLATION
trol box. See Checking Pump Rotation in OPERATION,
Section C.
PIPING
No suction piping is required in a standard submerged
application.
The SM Series pumps are provided with a suction strainer
to prevent large solids from clogging the impeller. On high
discharge head applications, the strainer can be re
moved, and the pump suction “staged” to the discharge
of another pump, allowing one pump to feed the other.
To determine the size of the discharge connection, see
Table B‐1, Pump Specifications. Either hose or rigid
pipe may be used. To facilitate mobility and maintenance,
it is recommended that the discharge line be fitted with a
quick disconnect fitting near the pump. The discharge
line must be independently supported to avoid strain and
vibration on the pump.
Either hose or rigid pipe may be used to make discharge
connections. For maximum pumping capacity, keep the
line as short and straight as possible. Elbows and fittings
used in discharge lines increase friction loss; minimize
their use.
It is recommended that a check valve or throttling valve be
installed in the discharge line to control siphoning or back
flow when the pump is shut off.
ELECTRICAL CONNECTIONS
Install and operate this pump in accordance
with the National Electrical Code and all local
codes. Have a qualified electrician perform
all checks and connections in this section.
Never attempt to alter the length of the pump
motor cable or to repair it with a splice. The
power cable and pump motor must be kept
completely waterproof. Serious damage to
the pump and injury or death to personnel
can result from any alteration to the cable.
Control Box Installation
The pump is designed to be operated
through the control box furnished with the
pump. The control box provides overload
protection and power control. Do not connect
the pump motor directly to the incoming pow
er lines.
The control box is a NEMA type 10, MSHA certified enclo
sure. The enclosure is not designed to be watertight,
and should not be submerged. Refer to the control box
manual for enclosure dimensions and parts.
Secure the control box vertically on a level surface, above
flood level. The box should be easily accessible to the op
erator, and located close enough to the pump to avoid ex
cessive voltage drop due to cable length (see Pump
Power Cable Connections). After the box is installed,
make certain the front cover latches properly.
Failure to mount the control box vertically on a
level surface may affect operation of the pump
controls.
Field Wiring Connections (Incoming Power)
The trailing cable from the power source to the control
box must be furnished by the customer. The cable must
be flame‐resistant, protected by an instantaneous circuit
breaker, and meet the specifications indicated in the
Table B-3.
The electrical power used to operate this
pump is high enough to cause injury or death.
Obtain the services of a qualified electrician
to make all electrical connections. Make cer
tain that the pump and enclosure are proper
ly grounded; never use gas pipe as an electri
cal ground. Be sure that the incoming power
matches the voltage and phase of the pump

OM-04417 SM SERIES
PAGE B - 12 INSTALLATION
and control before connecting the power
source. Do not run the pump if the voltage is
not within the limits.
Do not open the control box in an explosive
atmosphere. When sealed, the control box is
explosion proof to prevent the ignition of
combustible gases. Opening the box in an
explosive atmosphere could result in fire or
explosion.
Field wiring is not provided with this pump, and must be
supplied by the user. The field wiring must be of the
proper size and type to ensure an adequate voltage sup
ply to the pump. Voltage available at the motor must be
within the range indicated in Table B‐4.
To calculate the voltage available at the motor, proceed as
follows:
a. Measure the incoming voltage across lines 1 & 2, 2 &
3, and 1 & 3 while the pump is operating at full ca
pacity. See the wiring diagrams in this section for
power supply connections.
b. Next, subtract the motor cable voltage drop (see Ta
ble B‐5, Pump Power Cable Specifications).
c. Do not continue to operate the pump if this voltage is
not within the recommended limits. Obtain the serv
ices of a qualified electrician to determine the correct
field wiring size and other details to insure an ade
quate voltage supply to the pump.
Table B‐4. Pump Motor Voltage Limits
Nominal
Voltage Phase
Minimum
Voltage
Maximum
Voltage
460 3 420 500
575 3 520 630
Use the packing gland nuts to secure and seal the incom
ing field wiring to the control box. make certain all connec
tions are tight and that cable entry points are rainproof.
Support the cable weight, if required, to prevent exces
sive strain on cable clamps and cable.
NOTE
After the power cables have been connected to the control
box, the packing gland nuts must be wired and sealed be
fore operation.
Grounding Methods
Electrically ground the installation before connecting the
field wiring to the control box. Install a grounding terminal
to the enclosure and connect it to a properly embedded
electrode.
The material used for the electrode must be an excellent
conductor of electricity, such as copper. If iron or steel is
used, it must be galvanized or otherwise metal plated to
resist corrosion. Do not coat the electrode with any mate
rial of poor conductivity, such as paint or plastic.
The electrode must conform to the recommendations of
MSHA. Follow all installation requirements of MSHA, and
all applicable codes. See Figure B‐2 for some suggested
grounding methods.
ROCK
8 FEET
(2,4 M)
3/4 INCH (19,1
MM) NOMINAL
DIAMETER
(MINIMUM)
SOIL
SOIL
SOIL
1/4 INCH STEEL
PLATE 2 SQ. FEET
(1858,1 SQ. CM)
SURFACE AREA
(MINIMUM)
a) PLATE ELECTRODE b) DRIVEN ELECTRODE c) BURIED ELECTRODE
3/4 INCH (19,1 MM)
NOMINAL DIAMETER
(MINIMUM) 8 FEET
(2,4 M) LONG
Figure B‐2. Suggested Grounding Methods

OM-04417SM SERIES
PAGE B - 13INSTALLATION
a. Plate Electrode: An iron or steel plate, 1/4 inch (6,4
mm) thick, completely impeded in the ground. The
plate must present a surface area of at least 2 square
feet (1858,1 sq. cm).
b. Driven Electrode: A rod or pipe, 3/4 inch (19,1 mm)
in diameter minimum, 8 feet (2,4 m) long, completely
driven into the ground.
c. Buried electrode: If rock or stone prevents embed
ding the full 8 foot (2,4 m) length of the ground rod,
bury it horizontally in a trench.
Space the ground rod or plates at least 6 feet (1,8 m)
from any other electrode or ground rod, such as
those used for signal circuits, radio grounds, light
ning rods, etc.
The earth surrounding the ground rod or plate must
contain enough moisture to make a good electrical
connection. In dry or sandy areas, pour water
around the rod, or consult qualified personnel to de
vise a method of improving the connection.
The electrical power used to operate this
pump is high enough to cause injury or death.
Make certain that the control box is properly
grounded after installation.
Refer to the literature accompanying the control box for
field wiring connections.
Pump Power Cable Connections
The electrical power used to operate this
pump is high enough to cause injury or death.
Obtain the services of a qualified electrician
to make all electrical connections. Make cer
tain that incoming power to the control box is
in the off position and locked out, or that the
power supply to the control box has been
otherwise cut off and locked out, before con
necting power or accessory cables.
The standard pump is provided with a 50 foot power ca
ble (see Table B‐5 for cable specifications). If a longer ca
ble is required, an optional cable assembly must be or
dered from the factory. Splicing of the power cable is not
recommended by the Gorman‐Rupp Company due to
safety and warranty considerations.
Never attempt to alter the length or repair any
power cable with a splice. The pump motor
and cable must be completely waterproof. In
jury or death may result from alterations.
Table B‐5. Pump Power Cable Specifications
Pump
Model
Voltage/
Phase
AWG
Cable
Size
Cable
O.D.
Inches
(mm)
Conductor
Dia.
Inches
(mm)
Amp
Rating (See
Note below) Cable
Type
DC
Resistance
(ohms) at
25_C
(77_F) per
1000 ft.
(305 m)
Voltage Drop
per 100 ft.
(30,5m) at Max.
Load
SM2E 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 1.86
1.48
SM2F 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 .688
.550
SM3B 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 3.72
2.96
SM3C 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 3.72
2.96
NOTE: *Amp Rating at 30_C (86_F)
**Amp Rating at 40_C (104_F)

OM-04417 SM SERIES
PAGE B - 14 INSTALLATION
Table B‐5. Pump Power Cable Specifications (continued)
Pump
Model
Voltage Drop
per 100 ft.
(30,5m) at Max.
Load
DC
Resistance
(ohms) at
25_C
(77_F) per
1000 ft.
(305 m)
Cable
Type
Amp
Rating (See
Note below)
Conductor
Dia.
Inches
(mm)
Cable
O.D.
Inches
(mm)
AWG
Cable
Size
Voltage/
Phase
SM4C 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 5.85
4.68
SM4D 460/3
575/3
12 .89
(22,6)
10
(2,5)
30* SPC 1.72 5.85
4.68
SM4E 460/3
575/3
8 1.05
(26,7)
.17
(4,3)
59** SPC .71 3.69
2.95
SM4F 460/3
575/3
8 1.05
(26,7)
.17
(4,3)
59** SPC .71 3.69
2.95
SM4G 460/3
575/3
8 1.05
(26,7)
.17
(4,3)
59** SPC .71 5.47
4.37
SM4H 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 5.85
4.68
SM4J 460/3
575/3
6 1.25
(31,8)
.21
(5,3)
79 SPC .45 5.94
4.75
SM4K 460/3
575/3
12 .89
(22,6)
.10
(2,5)
30* SPC 1.72 5.85
4.68
SM6D 460/3
575/3
8 1.05
(26,7)
.17
(4,3)
59** SPC .71 5.47
4.37
SM6E 460/3
575/3
6 1.25
(31,8)
.21
(5,3)
79** SPC .45 5.94
4.75
NOTE: *Amp Rating at 30_C (86_F)
**Amp Rating at 40_C (104_F)
When necessary to change or connect the pump power
cable to the control box, make certain the incoming
power is OFF and LOCKED OUT. Make certain the con
trol box is PROPERLY GROUNDED and that the electri
cal data on the control matches the motor name plate
data.
Connect the pump power cable to the control box as
shown in the control box manual.
Control Box Specifications
Any control box used to operate the pump
must be approved by the MSHA and the Gor
man‐Rupp Company for the application.
Motor Cable Grounding Test
Do not connect the pump control cable to the
control box or incoming voltage before veri
fying the pump ground; otherwise, personnel
will be exposed to serious injury or death.
Using a volt‐ohm meter, connect one lead to the motor ca
ble green/yellow ground lead. Connect the other lead to
an uninsulated point on the pump body. The test circuit
should close.
If the test circuit does not close, there is a defect in the ca
ble or motor which must be corrected.

OM-04417SM SERIES
PAGE B - 15INSTALLATION
Control Box Connections
This pump is shipped completely wired for the voltage
shown on the nameplate, and is ready for operation
through an approved control box.
Ground and wire the control box in accordance with the
instructions accompanying it.
NOTE
For reference, internal motor wiring connections are
shown in the Maintenance and Repair manual.