Crane Barnes SE Series User manual

A Crane Co. Company
BARNESBARNES®
INSTALLATION and OPERATION MANUAL
Submersible Sewage Ejector
IMPORTANT! Read all instructions in this manual before operating pump.
As a result of Crane Pumps & Systems, Inc., constant product improvement program,
product changes may occur. As such Crane Pumps & Systems reserves the right to
 changeproductwithoutpriorwrittennotication.
420 Third Street 83 West Drive, Bramton
Piqua, Ohio 45356 Ontario, Canada L6T 2J6
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
www.cranepumps.com Form No. 105240-Rev. AK
Series: *SE & 3SE-L & DS
.5, .75 & 1 HP, 1750RPM, 60 Hz.
Single and Double Seal
*(Standard and High Temperature)

2
TABLE OF CONTENTS
SAFETY FIRST............................................................................................... 3
A. PUMP SPECIFICATIONS ................................................................................4 - 6
B. GENERAL INFORMATION ..............................................................................7
C. INSTALLATION ................................................................................................7 - 9
ELECTRICAL DATA .........................................................................................10
D. START-UP OPERATION..................................................................................9
E. PREVENTATIVE MAINTENANCE ...................................................................9
F. SERVICE and REPAIR ....................................................................................11 - 18
G. REPLACEMENT PARTS..................................................................................15
TROUBLE SHOOTING....................................................................................19
SE-L & 3SE-L SINGLE SEAL - CROSS-SECTION (Fig. 16) ...........................20
SE-L & 3SE-L SINGLE SEAL - EXPLODED VIEW (Fig. 17) ...........................21
SE-HT SINGLE SEAL - CROSS SECTION (Fig. 18).......................................22
SE-HT SINGLE SEAL - EXPLODED VIEW (Fig. 19).......................................23
3SE-DS DOUBLE SEAL - CROSS-SECTION (Fig. 20)...................................24
3SE-DS DOUBLE SEAL - EXPLODED VIEW (Fig. 21) ...................................25
PARTS LIST ...................................................................................................26 - 28
RETURNED GOODS POLICY.........................................................................32
WARRANTY ...................................................................................................31
WARRANTY REGISTRATION .........................................................................32
SPECIAL TOOLS AND EQUIPMENT
INSULATION TESTER (MEGGER)
DIELECTRIC TESTER
SEAL TOOL KIT ( see parts list)
PRESSURE GAUGE KIT (see parts list)
Other brand and product names are trademarks or registered trademarks of their respective holders.
® Barnes is a registered trademark of Crane Pumps & Systems, Inc
1999, 2002, 2003, 5/04, 1/06, 9/06, 12/06, 2/07 Alteration Rights Reserved

3
Please Read This Before Installing Or Operating Pump.
This information is provided for SAFETY and to PREVENT
EQUIPMENT PROBLEMS. To help recognize this information,
observe the following symbols:
IMPORTANT! Warns about hazards that can result
in personal injury or Indicates factors concerned with
assembly, installation, operation, or maintenance which
could result in damage to the machine or equipment if
ignored.
CAUTION ! Warns about hazards that can or will cause minor
personal injury or property damage if ignored. Used with symbols
below.
WARNING ! Warns about hazards that can or will cause serious
personal injury, death, or major property damage if ignored. Used
with symbols below.
Only qualied personnel should install, operate and repair
pump. Any wiring of pumps should be performed by a qualied
electrician.
WARNING ! - To reduce risk of electrical shock, pumps
and control panels must be properly grounded in
accordance with the National Electric Code (NEC) or the
Canadian Electrical Code (CEC) and all applicable state,
province, local codes and ordinances.
WARNING! - To reduce risk of electrical shock, always
disconnect the pump from the power source before
handling or servicing. Lock out power and tag.
WARNING! Operation against a closed
discharge valve will cause premature bearing
and seal failure on any pump, and on end
suction and self priming pump the heat build
may cause the generation of steam with resulting dangerous
pressures. It is recommended that a high case temperature
switch or pressure relief valve be installed on the pump body.
CAUTION ! Never operate a pump with a plug-in type
power cord without a ground fault circuit interrupter.
CAUTION! Pumps build up heat and pressure
during operation-allow time for pumps to cool
before handling or servicing.
WARNING! - DO NOT pump hazardous materials
(ammable, caustic, etc.) unless the pump is specically
designed and designated to handle them.
Do not block or restrict discharge hose, as discharge
hose may whip under pressure.
WARNING! - DO NOT wear loose clothing that may
become entangled in the impeller or other moving parts.
WARNING! - Keep clear of suction and discharge
openings. DO NOT insert ngers in pump with power
connected.
Always wear eye protection when working on pumps.
Make sure lifting handles are securely fastened each
time before lifting. DO NOT operate pump without
safety devices in place. Always replace safety devices
that have been removed during service or repair.
Secure the pump in its operating position so it can not
tip over, fall or slide.
DO NOT exceed manufacturers recommendation for
maximum performance, as this could cause the motor
to overheat.
DO NOT remove cord and strain relief. Do not connect
conduit to pump.
WARNING! Cable should be protected at all times to
avoid punctures, cut, bruises and abrasions - inspect
frequently. Never handle connected power cords with
wet hands.
WARNING! To reduce risk of electrical shock, all wiring
and junction connections should be made per the NEC
or CEC and applicable state or province and local
codes. Requirements may vary depending on usage
and location.
WARNING! Submersible Pumps are not approved for
use in swimming pools, recreational water installations,
decorative fountains or any installation where human
contact with the pumped uid is common.
WARNING! Products Returned Must Be Cleaned,
Sanitized, Or Decontaminated As Necessary Prior
To Shipment, To Insure That Employees Will Not Be
Exposed To Health Hazards In Handling Said Material.
All Applicable Laws And Regulations Shall Apply.
Bronze/brass and bronze/brass tted pumps may
contain lead levels higher than considered safe for
potable water systems. Lead is known to cause cancer
and birth defects or other reproductive harm. Various
government agencies have determined that leaded
copper alloys should not be used in potable water
applications. For non-leaded copper alloy materials of
construction, please contact factory.
IMPORTANT! - Crane Pumps & Systems, Inc. is not
responsible for losses, injury, or death resulting from a
failure to observe these safety precautions, misuse or
abuse of pumps or equipment.
SAFETY FIRST!
Hazardous uids can
cause re or explo-
sions, burnes or death
could result.
Extremely hot - Severe
burnes can occur on contact.
Biohazard can cause
serious personal injury.
Hazardous uids can Hazard-
ous pressure, eruptions or ex-
plosions could cause personal
injury or property damage.
Rotating machinery
Amputation or severe
laceration can result.
Hazardous voltage can
shock, burn or cause death.

4
DISCHARGE.............2” NPT, Female, Vertical, Bolt-on Flange
LIQUID TEMPERATURE:
Standard............104°F (40°C) Continuous
High Temp .........200°F (93°C) Continuous
VOLUTE....................Cast Iron ASTM A-48, Class 30
MOTOR HOUSING ...Cast Iron ASTM A-48, Class 30
SEAL PLATE ...........Cast Iron ASTM A-48, Class 30
IMPELLER:
Design ...............2 Vane, open, with pump out vanes on
back side. Dynamically balanced, ISO G6.3
Material .............Cast Iron ASTM A-48, Class 30
SHAFT.......................416 Stainless Steel
SQUARE RINGS.......Buna-N
HARDWARE .............300 Series Stainless Steel
PAINT ........................Air Dry Enamel
SEAL:
Design ..............Single Mechanical
Material..............Carbon/Ceramic/Buna-N
Hardware -300 Series Stainless
CORD ENTRY...........15 ft. (5 m), 20ft. (6.1 m) Cord with plug
on 120 volt & .5HP, 240 volt, 1 phase.
Quick connect custom molded for sealing
and strain relief
SPEED ......................1750 RPM (Nominal)
UPPER BEARING.....Single Row, Ball, Oil lubricated
Load...................Radial
LOWER BEARING....Single Row, Ball, Oil lubricated
Load...................Radial & Thrust
MOTOR:
Design ..............NEMA L -Single Phase, NEMA B -Three
phase Torque Curve, Oil Filled, Squirrel
Cage Induction
Insulation ...........Class B, Class F for High Temp.
Class F on selected models
SINGLE PHASE........Permanent Split Capacitor (PSC)
Includes Overload Protection in Motor
THREE PHASE.........200-240/480 is Tri-Voltage notor 600V.
Requires overload Protection to be
included in control panel
LEVEL CONTROL ...."A" - Wide Angle, PVC, Mechanical,
20 ft (6.1m) cord with Piggy-Back Plug, N/O
"AU"- Wide Angle, Polypropylene,
Mechanical, N/O Integral to pump.
ON and OFF Points are adjustable
OPTIONAL EQUIPMENT Seal Material, Impeller Trims,
Additional cord, Normally Closed Temperature Sensors with
cord for 3 phase pumps (Requires relay in control panel),
*Inlet Strainer for High Temperature Models.
(*) 3/4” Spherical solids handling with optional inlet stainer.
DISCHARGE ............3” NPT, Female, Vertical, Bolt-on Flange
LIQUID TEMP ...........104°F (40°C) Continuous
VOLUTE....................Cast Iron ASTM A-48, Class 30
MOTOR HOUSING ...Cast Iron ASTM A-48, Class 30
SEAL PLATE ...........Cast Iron ASTM A-48, Class 30
IMPELLER:
Design ...............2 Vane, open, with pump out vanes on
back side. Dynamically balanced, ISO G6.3
Material .............Cast Iron ASTM A-48, Class 30
SHAFT .....................416 Stainless Steel
SQUARE RINGS.......Buna-N
HARDWARE .............300 Series Stainless Steel
PAINT ........................Air Dry Enamel
SEAL:
Design ..............Single Mechanical or Tandem Mechanical
with Oil Filled Reservoir
Material..............Carbon/Ceramic/Buna-N
Hardware -300 Series Stainless
CORD ENTRY............. 15 ft. (5 m), 20 ft. (6.1 m) Cord. Plug on
120 Volt & .5HP. 240 Volt 1 Phase Quick
connect custom molded for sealing
and strain relief
SPEED ......................1750 RPM (Nominal)
UPPER BEARING.....Single Row, Ball, Oil lubricated
Load...................Radial
LOWER BEARING....Single Row, Ball, Oil lubricated
Load...................Radial & Thrust
MOTOR:
Design ..............NEMA L -Single Phase, NEMA B -Three
phase Torque Curve, Oil Filled, Squirrel
Cage Induction
Insulation ...........Class B
Class F on selected models
SINGLE PHASE........Permanent Split Capacitor (PSC)
Includes Overload Protection in Motor
THREE PHASE ............200-240/480 is Tri-Voltage. 600V. Requires
Overload Protection to be included in
control panel
OPTIONAL EQUIPMENT..... Seal Material, Impeller Trims,
Additional cord, Normally Closed Temperature Sensors with
cord for 3 phase pumps (Requires relay in control panel),
Normally Open Moisture Sensor with cord for DS pumps.
SECTION: A - PUMP SPECIFICATIONS:
2” Pumps (Standard & High Temperature) 3” Pumps
IMPORTANT ! - Standard Temperature
1.) PUMP MAY BE OPERATED “DRY” FOR EXTENDED PERIODS WITHOUT
DAMAGE TO MOTOR AND/OR SEALS.
2.) THIS PUMP IS NOT APPROPRIATE FOR THOSE APPLICATIONS
SPECIFIED AS CLASS I DIVISION I HAZARDOUS LOCATIONS.
3.) INSTALLATIONS SUCH AS DECORATIVE FOUNTAINS OR WATER
FEATURES PROVIDED FOR VISUAL ENJOYMENT MUST BE INSTALLED
IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE ANSI/NFPA 70
AND/OR THE AUTHORITY HAVING JURISDICTION. THIS PUMP IS NOT
INTENDED FOR USE IN SWIMMING POOLS, RECREATIONAL WATER
PARKS, OR INSTALLATIONS IN WHICH HUMAN CONTACT WITH
PUMPED MEDIA IS A COMMON OCCURRENCE.
IMPORTANT ! - High Temperature
1.) PUMP MAY BE OPERATED “DRY” FOR EXTENDED PERIODS WITHOUT
DAMAGE TO MOTOR AND/OR SEALS.
2.) INSTALLATIONS SUCH AS DECORATIVE FOUNTAINS OR WATER
FEATURES PROVIDED FOR VISUAL ENJOYMENT MUST BE INSTALLED
IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE ANSI/NFPA
70 AND/OR THE AUTHORITY HAVING JURISDICTION. THIS PUMP IS
NOT INTENDED FOR USE IN SWIMMING POOLS, RECREATIONAL
WATER PARKS, OR INSTALLATIONS IN WHICH HUMAN CONTACT WITH
PUMPED MEDIA IS A COMMON OCCURRENCE.
3.) MUST USE A HIGH TEMPERATURE WIDE ANGLE LEVEL CONTROL IN
HIGH TEMPERATURE APPLICATIONS.

5
inches
(mm)
SE & SE-HT, Single Seal
SE-A & SE-HTA, Single Seal
SE-AU & SE-HTAU, Single Seal
Plugs for 120 Volt
and .5Hp, 240
Volt Single Phase
Models.
Plugs for 120 Volt
and .5Hp, 240
Volt Single Phase
Models.
Plugs for 120 Volt
and .5Hp, 240
Volt Single Phase
Models.

6
Plugs for 120 Volt
and .5Hp, 240
Volt Single Phase
Models.
inches
(mm)
Plugs for 120 Volt
and .5Hp, 240
Volt Single Phase
Models.
3SE-L, Single Seal
3SE-DS, Double Seal

7
SECTION B: GENERAL INFORMATION
B-1) To the Purchaser:
Congratulations! You are the owner of one of the nest pumps
on the market today. CP&S pumps are products engineered
and manufactured of high quality components. Over one
hundred years of pump building experience along with a
continuing quality assurance program combine to produce a
pump which will stand up to the toughest applications. This
manual will provide helpful information concerning installation,
maintenance, and proper service guidelines.
B-2) Receiving:
Upon receiving the pump, it should be inspected for damage
or shortages. If damage has occurred, le a claim immediately
with the company that delivered the pump. If the manual
is removed from the packaging, do not lose or misplace.
B-3) Storage:
Short Term- CP&S Pumps are manufactured for efcient
performance following short inoperative periods in storage.
For best results, pumps can be retained in storage, as factory
assembled, in a dry atmosphere with constant temperatures
for up to six (6) months. Long Term- Any length of time
exceeding six (6) months, but not more than twenty-four (24)
months. The unit should be stored in a temperature controlled
area, a roofed over walled enclosure that provides protection
from the elements (rain, snow, wind-blown dust, etc.), and
whose temperature can be maintained between +40 deg. F
and +120 deg. F. (4.4 - 49°C). Pump should be stored in its
original shipping container. On initial start up, rotate impeller
by hand to assure seal and impeller rotate freely. If it is
required that the pump be installed and tested before the long
term storage begins, such installation will be allowed provided:
1.) The pump is not installed under water for more than
one (1) month.
2.) Immediately upon satisfactory completion of the test,
the pump is removed, thoroughly dried, repacked in the
original shipping container, and placed in a temperature
controlled storage area.
B-4) Service Centers:
For the location of the nearest Barnes Service Center, check
your Barnes representative or Crane Pumps & Systems, Inc.,
Service Department in Piqua, Ohio, telephone [phone]
or Crane Pumps & Systems Canada, in Brampton, Ontario,
[phone].
SECTION C: INSTALLATION
C-1) Location:
These pumping units are self-contained and are recommended
for use in a sump, lift station or basin that is free of hard debris
like gravel, stones, sand or earth. The sump, lift station or
basin shall be vented in accordance with local plumbing codes.
This pump is designed to pump sewage, efuent, or other
nonexplosive or noncorrosive wastewater. and shall NOT be
installed in locations classied as hazardous in accordance
with the National Electrical Code (NEC), ANSI/NFPA 70 or the
Canadian Electrical Code (CEC). Never install the pump in a
trench, ditch or hole with gravel, stones, sand, or earth bottom;
the legs will sink into the dirt and the suction will become
plugged, or the pump impeller will be damaged.
C-1.1) Submergence:
It is recommended that the pump be operated in the submerged
condition and the sump liquid level should never be lower than
the top of the pump. (see Fig. 2)
C-2) Discharge:
Discharge piping should be as short as possible. Both a check
valve and a shut-off valve are recommended for each pump
being used. The check valve is used to prevent backow
into the sump. Excessive backow can cause ooding
and/or damage to the pump. The shut-off valve is used to
stop system ow during pump or check valve servicing.
Barnes Pumps supplies a Stainless Rail Package for
the 2” models and also a variety of 2” and 3” break-away
tting discharge systems (see Fig. 1) designed to allow the
submersible wastewater pump to be installed or removed
without requiring personnel to enter the wet well. Contact your
local Barnes Pumps distributor for complete details.
Stainless Rail Package (Not Shown) - The package system
comes complete and ready to place into the ground as outlined
in the project specications. The moveable portion of the Break
Away Fitting (BAF), check valve, piping and guide bracket
comes assembled on the pump along with the lifting cord.
Insert pump bracket and moveable portion of BAF into the
guide channel and lower pump into basin (DO NOT DROP).
Now connect power and control cords to the junction box or
control panel depending on system design.
C-3) Liquid Level Controls:
The level controls are to be supported by a mounting bracket that
is attached to the sump wall, cover or junction box. Cord grips
are used to hold the cords in place on the mounting bracket.
The control level can be changed by loosening the grip and
adjusting the cord length as per the plans and specications.
Be certain that the level controls cannot hang up or foul in it’s
swing and that the pump is completely submerged when the
level control is in the “Off” mode.
FIGURE 1

8
Figure 2 shows a typical installation of an “A” version oat,
(an “AU” version will attach to the pump), using a piggy-back
plug.
General Comments:
1) Never work in the sump with the power on.
2) Level controls are factory set for a pumping differential of 9
inches. If that is the cycle desired, simply circle the discharge
pipe with the pipe mounting strap, feed the end through the
worm drive, and tighten with a screwdriver. Be certain that the
level control cannot hang up or foul in it’s swing. Also, make
certain the top of the pump is still submerged when the level
control is in the ‘off’ mode.
3) If a higher pump differential is needed, grip the cord near
the neck of the oat, then using the other hand, exert a
steady force on the lower edge of the cable clamp. The cable
clamp should slide up to the new pivot point. Attach the level
control to the discharge hose in the manner described above.
4) Plug the level control plug into the receptacle, then plug
the pump into the piggyback plug. One cycle of operation
should be observed, so that any potential problems can be
corrected.
5) It is recommended that the oat should be set to insure
that the sump well liquid level never drops below the top of
the motor housing.
6.) Figure 3 shows a typical connection for pumps with
the wide angle oat and piggy-back plug. For manual and
automatic operations.
Automatic - Plug oat cord into outlet, then plug pump
cord into oat cord.
Manual - Plug pump cord directly int outlet.
C-4) Electrical Connections:
C-4.1) Power and Control Cable:
The cord assembly mounted to the pump must not be modied
in any way except for shortening to a specic application.
Any splice between the pump and the control panel must be
made in accordance with all applicable electric codes. It is
recommended that a junction box, if used, be mounted outside
the sump or be of at least Nema 4 (EEMAC-4) construction if
located within the wet well. Do not use the power or control
cable to lift pump. NOTE: The white wire is NOT a neutral
or ground lead, but a power carrying conductor.
C-4.2) Overload Protection :
C-4.2-1) Three Phase (Optional) - The normally closed
(N/C) thermal sensor is embedded in the motor windings and
will detect excessive heat in the event an overload condition
occurs. The thermal sensor will trip when the windings become
too hot and will automatically reset itself when the pump motor
cools to a safe temperature. It is recommended that the thermal
sensor be connected in series to an alarm device to alert the
operator of an overload condition, and/or the motor starter coil
to stop the pump. In the event of an overload, the source of this
condition should be determined and rectied immediately. DO
NOT LET THE PUMP CYCLE OR RUN IF AN OVERLOAD
CONDITION OCCURS !
120 Volt 1 Phase
Automatic
240 Volt 1 Phase
FIGURE 3
Manual
Manual
Automatic
TYPICAL INSTALLATION WITH WIDE ANGLE
LEVEL CONTROL
FIGURE 2

9
If current through the temperature sensor exceeds the values
listed, an intermediate control circuit relay must be used
to reduce the current or the sensor will not work properly.
TEMPERATURE SENSOR ELECTRICAL RATINGS
Volts Continuous
Amperes
Inrush
Amperes
110-120 3.00 30.0
220-240 1.50 15.0
440-480 0.75 7.5
600 0.60 6.0
C-4.2-2) Single Phase (Standard) - The type of in-winding
overload protector used is referred to as an inherent overheating
protector and operates on the combined effect of temperature
and current. This means that the overload protector will trip
out and shut the pump off if the windings become too hot, or
the load current passing through them becomes too high. It
will then automatically reset and start the pump up after the
motor cools to a safe temperature. In the event of an overload,
the source of this condition should be determined and rectied
immediately. DO NOT LET THE PUMP CYCLE OR RUN IF
AN OVERLOAD CONDITION OCCURS !
C-4.3) Moisture Sensors- DS Models: (Optional)
A normally open (N/O) detector is installed in the pump
seal chamber which will detect any moisture present. It is
recommended that this detector be connected in series to an
alarm device or the motor started coil to alert the operator that a
moisture detect has occurred. In the event of a moisture detect,
check the individual moisture sensor probe leads for continuity,
(∞ resistance = no moisture) and the junction box/control box
for moisture content. The above situations may induce a false
signal in the moisture detecting circuit. If none of the above
tests prove conclusive, the pump(s) should be pulled and the
source of the failure identied and repaired. IF A MOISTURE
DETECT HAS OCCURRED SCHEDULE MAINTENANCE AS
SOON AS POSSIBLE.
C-4.4) Wire Size:
Consult a qualied electrician for proper wire size if additional
power cord length is required. See table on pages 9 and 10
for electrical information.
SECTION: D START-UP OPERATION
D-1) Check Voltage and Phase:
Before operating pump, compare the voltage and phase
information stamped on the pump identication plate to the
available power.
D-2) Check Pump Rotation:
Before putting pump into service for the rst time, the motor
rotation must be checked. Improper motor rotation can
result in poor pump performance and can damage the motor
and/or pump. To check the rotation, suspend the pump
freely, momentarily apply power and observe the “kickback”.
“Kickback” should always be in a counter-clockwise direction
as viewed from the top of the pump motor housing.
D-2.1) Incorrect Rotation for Three-Phase Pumps:
In the event that the rotation is incorrect for a three-phase
installation, interchange any two power cord leads at the
control box. DO NOT change leads in the cord housing in the
motor. Recheck the “kickback” rotation again by momentarily
applying power.
D-2.2) Incorrect Rotation for Single-Phase Pumps:
In the unlikely event that the rotation is incorrect for a single
phase pump, contact a Barnes Pumps Service Center.
D-3) Identication Plate:
Record future serial plate information in the “NOTES” section.
D-3.1) Pump-Down Test:
After the pump has been properly wired and lowered into the
basin, sump or lift station, it is advisable to check the system
by lling with liquid and allowing the pump to operate through
its pumping cycle. The time needed to empty the system, or
pump-down time along with the volume of water, should be
recorded on the start-up report.
SECTION E: PREVENTATIVE MAINTENANCE
As the motor is oil lled, no lubrication or other maintenance
is required, and generally Barnes Pumps will give very reliable
service and can be expected to operate for years on normal
sewage pumping without failing. In our experience attempts
at preventative maintenance are more likely to reduce, rather
than extend the life of our pumps. However, if you are inclined
to perform preventative maintenance, the following are the
steps that should be performed.
1) Inspect motor chamber for oil level and contamination
and repair as required per section F-1.
2) Inspect impeller and body for excessive build-up or
clogging and repair as required per section F-2.
3) Inspect motor and bearings and replace as required
per section F-3.
4) Inspect seal for wear or leakage and repair as required
per section F-4.

10
MODEL
NO
HP VOLT/PH Hz RPM
(Nom)
NEMA
START
CODE
INSUL.
CLASS
FULL
LOAD
AMPS
LOCKED
ROTOR
AMPS
CORD
SIZE
CORD
TYPE
CORD
O.D
inch (mm)
WINDING RESISTANCE
Emerson
Main-Start
Bluffton
Main-Start
G.E.
Main-Start
SE51 0.5 120/1 60 1750 F B 11.6 21.3 14/3 SJTOW 0.375 (9.5) 1.51 - 16.10
SE51A 0.5 120/1 60 1750 F B 11.6 21.3 14/3 SJTOW 0.375 (9.5) 1.51 - 16.10
SE51AU 0.5 120/1 60 1750 F B 11.6 21.3 14/3 SJTOW 0.375 (9.5) 1.51 - 16.10
SE52 0.5 240/1 60 1750 J B 5.9 14.9 14/3 SOW 0.530 (13.5) 3.38 - 9.30 5.69 - 18.74
SE52AU 0.5 240/1 60 1750 J B 5.9 14.9 14/3 SOW 0.530 (13.5) 3.38 - 9.30 5.69 - 18.74
SE594L 0.5 200-240/3 60 1750 H/L B 3.2/3.0 9.8/11.0 14/4 SOW 0.570 (14.5) 10.20 13.00
SE544L 0.5 480/3 60 1750 K B 1.5 5.3 14/4 SOW 0.570 (14.5) 40.80 52.00
SE554L 0.5 600/3 60 1750 H B 1.0 3.4 14/4 SOW 0.570 (14.5) 77.60 89.76
SE774L 0.75 200-240/1 60 1750 G/K F 7.4/7.0 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
SE794L 0.75 200-240/3 60 1750 H/K F 4.8/4.5 13.7/15.4 14/4 SOW 0.570 (14.5) 5.49 6.28
SE744L 0.75 480/3 60 1750 K F 2.2 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
SE754L 0.75 600/3 60 1750 L B 1.5 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
SE1074L 1.0 200-240/1 60 1750 D/G F 8.8/8.3 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
SE1094L 1.0 200-240/3 60 1750 E/H F 5.1/4.9 13.7/15.4 14/4 SOW 0.570 (14.5) 5.49 6.28
SE1044L 1.0 480/3 60 1750 H F 2.4 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
SE1054L 1.0 600/3 60 1750 J B 1.9 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
SE51HT 0.5 120/1 60 1750 R F 17.0 63.8 14/3 SOW 0.530 (13.5) 1.79 - 5.99 1.64 - 3.05
SE51HTA 0.5 120/1 60 1750 R F 17.0 63.8 14/3 SOW 0.530 (13.5) 1.79 - 5.99 1.64 - 3.05
SE51HTAU 0.5 120/1 60 1750 R F 17.0 63.8 14/3 SOW 0.530 (13.5) 1.79 - 5.99 1.64 - 3.05
SE52HT 0.5 240/1 60 1750 R F 8.5 30.1 14/3 SOW 0.530 (13.5) 1.79 - 5.99 1.64 - 3.05
SE52HTAU 0.5 240/1 60 1750 R F 8.5 30.1 14/3 SOW 0.530 (13.5) 1.79 - 5.99 1.64 - 3.05
3SE514L 0.5 120/1 60 1750 F B 11.6 21.3 14/3 SJTOW 0.375 (9.5) 1.51 - 16.10
3SE524L 0.5 240/1 60 1750 J B 5.9 14.9 14/3 SOW 0.530 (13.5) 3.38 - 9.30 5.69 - 18.74
3SE594L 0.5 200-240/3 60 1750 H/L B 3.2/3.0 9.8/11.0 14/4 SOW 0.570 (14.5) 10.20 13.00
3SE544L 0.5 480/3 60 1750 K B 1.5 5.3 14/4 SOW 0.570 (14.5) 40.80 52.00
3SE554L 0.5 600/3 60 1750 H B 1.0 3.4 14/4 SOW 0.570 (14.5) 77.60 89.76
3SE774L 0.75 200-240/1 60 1750 G/K F 7.4/7.0 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
3SE794L 0.75 200-240/3 60 1750 H/K F 4.8/4.5 13.7/15.4 14/4 SOW 0.570 (14.5) 5.49 6.28
3SE744L 0.75 480/3 60 1750 K F 2.2 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
3SE754L 0.75 600/3 60 1750 L B 1.5 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
3SE1074L 1.0 200-240/1 60 1750 D/G F 8.8/8.3 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
3SE1094L 1.0 200-240/3 60 1750 E/H F 5.14/4.9 13.7/15.4 14/4 SOW 0.570 (14.5) 5.49 6.28
3SE1044L 1.0 480/3 60 1750 H F 2.4 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
3SE1054L 1.0 600/3 60 1750 J B 1.9 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
3SE514DS 0.5 120/1 60 1750 F B 11.6 21.3 14/3 SJTOW 0.375 (9.5) 1.51 - 16.10
3SE524DS 0.5 240/1 60 1750 J B 5.9 14.9 14/3 SOW 0.530 (13.5) 3.38 - 9.30 5.69 - 18.74
3SE594DS 0.5 200-240/3 60 1750 H/L B 3.2/3.0 9.8/11.0 14/4 SOW 0.570 (14.5) 10.20 13.00
3SE544DS 0.5 480/3 60 1750 K B 1.5 5.3 14/4 SOW 0.570 (14.5) 40.80 52.00
3SE554DS 0.5 600/3 60 1750 H B 1.0 3.4 14/4 SOW 0.570 (14.5) 77.60 89.76
3SE774DS 0.75 200-240/1 60 1750 G/K F 7.4/7.0 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
3SE794DS 0.75 200-240/3 60 1750 H/K F 4.8/4.5 13.7/15.4 14/4 SOW 0.570 (14.5) 5.49 6.28
3SE744DS 0.75 480/3 60 1750 K F 2.2 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
3SE754DS 0.75 600/3 60 1750 L F 1.5 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
3SE1074DS 1.0 200-240/1 60 1750 D/G F 8.8/8.3 21.5/25.8 14/3 SOW 0.530 (13.5) 1.86 - 10.20 2.74 - 10.56
3SE1094DS 1.0 200-240/3 60 1750 E/H F 5.14/4.9 13.7/15.4 14/3 SOW 0.570 (14.5) 5.49 6.28
3SE1044DS 1.0 480/3 60 1750 H F 2.4 7.7 14/4 SOW 0.570 (14.5) 21.96 24.51
3SE1054DS 1.0 600/3 60 1750 J B 1.9 7.2 14/4 SOW 0.570 (14.5) 34.36 36.60
Winding Resistance ± 5%, measured from terminal block. Pump rated for operation at ± 10% voltage at motor.
2” Pumps ONLY: Mechanical Switch on SE51A, Cable 16/2, SJOW, 0.320 (8.1 mm) O.D. Piggy-Back Plug.
Mechanical Switch on SE51AU & SE52AU, Cable 14/2, SJOW, 0.345 (8.8 mm) O.D.
OPTIONAL - Moisture Sensor cable for DS models is 18/5, SOW, 0.470 (11.9 mm) O.D.
OPTIONAL - Temperature Sensor cable for 3 phase models is 14/3 SOW, 0.530 (13.5 mm) O.D.
OPTIONAL - Moisture & Temperature Sensor cable for 3 phase DS models is 18/5, SOW, 0.470 (11.9 mm) O.D.

11
SECTION F: SERVICE AND REPAIR
NOTE: All item numbers in ( ) refer to Figures 16 thru 21.
CAUTION ! - Operating pump builds up heat and
pressure; allow time for pump to cool to room
temperature before handling or servicing. Slowly
remove pipe plug prior to servicing as housing
may be pressurized.
F-1) Lubrication:
Anytime the pump is removed from operation, the cooling oil in
the motor housing (6) should be checked visually for oil level
and contamination.
F-1.1) Checking Oil:
Motor Housing - To check oil, set unit upright. Remove pipe
plug (39) from housing (6). With a ashlight, visually inspect
the oil in the motor housing (6) to make sure it is clean and
clear, light amber in color and free from suspended particles.
Milky white oil indicates the presence of water. Oil level should
be just above the motor when pump is in vertical position.
F-1.2) Testing Oil:
1.) Place pump on it’s side, remove pipe plug (39), from motor
housing (6) and drain oil into a clean, dry container.
2.) Check oil for contamination using an oil tester with a
range to 30 Kilovolts breakdown.
3.) If oil is found to be clean and uncontaminated (measuring
above 15 KV. breakdown), rell the motor housing as per
section F-1.4.
4.) If oil is found to be dirty or contaminated (or measures
below 15 KV. breakdown), the pump must be carefully
inspected for leaks at the shaft seal (28), cable assemblies
(16) and (56 if used), square ring (27) and pipe plug (39),
before relling with oil. To locate the leak, perform a
pressure test as per section F-1.3. After leak is
repaired, dispose of old oil properly, and rell with new oil
as per section F-1.4.
F-1.3) Pressure Test:
Pumps that have had the oil drained from the Motor
Housing - Apply pipe sealant to pressure gauge assembly
and tighten into pipe plug hole (See Figure 4). Pressurize
motor housing to 10 P.S.I. Use soap solution around the
sealed areas and inspect joints for “air bubbles”. If, after
ve minutes, the pressure is still holding constant, and no
“bubbles” are observed, slowly bleed the pressure and
remove the gauge assembly. Replace oil as described in
section F-1.4. If the pressure does not hold, then the leak
must be located and repaired. Pumps that have NOT had
the oil drained from the Motor Housing - The pressure
test may be done with the oil at its normal level. Remove
pipe plug (39) from motor housing (6). Apply pipe sealant to
pressure gauge assembly and tighten into hole (see Figure
4). Pressurize motor housing to 10 P.S.I. Use soap solution
around the sealed areas above the oil level and inspect joints
for “air bubbles”. For sealed areas below the oil level, leaks
will seep oil.
If, after ve minutes, the pressure is still holding constant,
and no “bubbles”/oil seepage is observed, slowly bleed the
pressure and remove the gauge assembly. If the pressure
does not hold, then the leak must be located and repaired.
Seal Chamber (DS Units Only)- Set unit on its side with
ll plug (44) downward, remove plug (44) and drain all oil
from seal chamber. Apply pipe sealant to pressure gauge
assembly and tighten into hole in outer seal plate (29).
Pressurize seal chamber to 10 P.S.I. and check for leaks as
outlined above.
CAUTION ! - Pressure builds up extremely
fast, increase pressure by “TAPPING” air
nozzle. Too much pressure will damage
seal. DO NOT exceed 10 P.S.I.
F-1.4) Replacing Oil:
Motor Housing- Set unit upright and rell with new cooling
oil as per Table 1 (see parts list for amount). Fill to just above
motor as an air space must remain in the top of the motor
housing to compensate for oil expansion (see Fig 16, 18 or
20). Apply pipe thread compound to threads of pipe plug (39)
then assemble to motor housing (6).
IMPORTANT! - For single phase units, oil level
should be below capacitor.
Seal Chamber (DS Units Only)- Set unit on its side, with
plug (44) upward, and rell with new oil as per Table 1 (see
parts list for amount). Apply pipe thread compound to threads
of pipe plug (44) and assemble to outer seal plate (29).
WARNING!-DONOToverlloil.
Overllingofmotorhousingwithoil
can create excessive and dangerous
hydraulic pressure which can destroy the
pumpandcreateahazard.Overllingoil
voids warranty.
TABLE 1 - COOLING OIL - Dielectric
SUPPLIER GRADE
BP Enerpar SE100
Conoco Pale Parafn 22
Mobile D.T.E. Oil Light
G & G Oil Circulating 22
Imperial Oil Voltesso-35
Shell Canada Transformer-10
Texaco Diala-Oil-AX
Woco Premium 100
FIGURE 4

12
F-2) Impeller and Volute Service:
F-2.1) Disassembly and Inspection:
To clean out volute (1) or replace impeller (33), disconnect
power, remove hex bolts (26), and lockwashers (12),
vertically lift motor and seal plate assembly from volute
(1) see Figure 5. Clean out body if necessary. Clean and
examine impeller (33), for pitting or wear and replace if
required, inspect gasket (36) and replace if cut or damaged.
If the impeller (33) needs replacing, place a at screwdriver
in the slot of the end of the shaft to hold the shaft stationary
while unscrewing the jam nut (66) and impeller (33).
F-2.2) Reassembly:
To install impeller (33), clean the threads with thread
locking compound cleaner. Apply removable Loctite® 603
or equivalent to shaft threads. Screw impeller onto the shaft
hand tight while using a screwdriver in the slot at the end of
the shaft to hold it stationary. Apply thread locking compound
(60) to shaft threads. Then install jam nut (66) and torque to
40 ft. lbs.
It is important that the spring of the lower shaft seal (28)
seats in the hub of the impeller (33). Rotate impeller to check
for binding. Position gasket (36) on volute ange and position
impeller and motor housing on volute (1). Position lockwasher
(12) on cap screw (26) and screw into volute (1). Torque to
100 in-lbs. Check for free rotation of motor and impeller.
F-3) Shaft Seal Service:
CAUTION ! - Handle seal parts with extreme care.
DO NOT scratch or mar lapped surfaces.
F-3.1) Disassembly and Inspection:
Outer Seal (All Units) - To expose shaft seal (28) for
examination, disassemble volute and impeller as outlined in
paragraph F-2.1. If further repair is required, remove retaining
ring (28d), spring (28c) and rotating member (28b) from shaft
(see Figure 6 & 7). Examine all seal parts and especially
contact faces. Inspect seal for signs of wear such as uneven
wear pattern on stationary members, chips and scratches
on either seal face. DO NOT interchange seal components,
replace the entire shaft seal (28). If replacing seal, remove
stationary (28a) by prying out with at screwdriver.
Inner Seal (DS Units Only)- To expose inner shaft seal
(28) for examination, remove outer seal as outlined above.
Remove socket head cap screws (64). Lift outer seal plate
(29) and square-ring (27) from inner seal plate (5) see Figure
8. If further repair is required, remove snap ring (32), retaining
ring (28d), spring (28c) and rotating member (28b) from shaft.
Examine as outlined in outer seal paragraph. If replacing seal,
remove stationary (28a) by prying out with at screwdriver.
FIGURE 5
FIGURE 6 - DOUBLE SEAL
FIGURE 6 - SINGLE SEAL
FIGURE 7

13
F-3.2) Reassembly:
Inner Seal (DS Units Only)- Clean and oil seal cavities in
seal plates (5, 29). Lightly oil (DO NOT use grease) outer
surface of stationary member (28a). Press stationary member
(28a) rmly into inner seal plate (5), using a seal pusher (see
parts list - seal tool kit). Nothing but the seal pusher is to
come in contact with seal face (see Fig 9).
IMPORTANT! - DO NOT hammer on the seal
pusher- it will damage the seal face.
Make sure the stationary member is in straight. Slide a bullet
(see parts list - seal tool kit) over motor shaft. Lightly oil (DO
NOT use grease) shaft, bullet and inner surface of bellows
on rotating member (28b) see Figure 10. With lapped surface
of rotating member (28b) facing inward toward stationary
member, slide rotating member over bullet and onto shaft,
using seal pusher, until lapped faces of (28a) and (28b) are
together (see Figure 9).
It is extremely important to keep seal faces clean during
assembly. Dirt particles lodged between these faces will
cause the seal to leak. Place spring (28c) over shaft and in
place on rotating member (28b), making sure it is seated
on retainer and not cocked or resting on bellows tail. Slide
retaining ring (28d) over shaft and let rest on spring (28c).
Replace snap ring (32) in groove of shaft. Set square-ring
(27) in groove on outer seal plate (29) and place outer seal
plate (29) onto inner seal plate (5). Replace socket head cap
screws (64) and torque to 60 in-lbs.
Outer Seal (All Units)- Press stationary member (28a) rmly
into outer seal plate (5, or 29 on DS Units) as described
above. Slide rotating member (28b) onto stationary member
using seal pusher as described above. Place spring (28c) and
retaining ring (28d) onto rotating member (28b). Assemble
impeller and volute as outlined in paragraph F-2.2. Replace
oil as outlined in paragraph F-1.4.
F-4) Motor and Bearing Service
F-4.1) Disassembly and Inspection:
To examine or replace the motor (7), capacitor (9, single phase
units), controls (55, 56, optional), and bearing (25), drain oil
from motor as outlined in paragraph F-1.1. Disassemble volute
and impeller as outlined in paragraph F-2.1 and disassemble
shaft seal as outlined in paragraph F-3.1.
Position unit upright, using blocks to avoid resting unit on
shaft. Unscrew cable hex bolts (11) and remove compression
ange (16a) and power cord (16). Remove snap ring (19) with
a at head screwdriver. Pull the terminal block (21) out of the
housing (6) using a T-bolt or pair of pliers and a .25-20 screw
in the threads of the terminal block (21). Be sure to leave
slack on the motor leads connected underneath. Use needle
nose pliers to pull each female connector off of the pins on
the underside of the terminal block (21) see Figure 11. The
unit voltage should be noted. Repeat cable and terminal block
removal procedure for any control cables (56) if equipped.
Remove socket head cap screws (47). Vertically lift the motor
housing (6) from seal plate (5) by lifting handle (13). Inspect
square ring (27) for damage or cuts. Remove the motor bolts
and lift motor stator from seal plate (5). Disconnect capacitor
leads from capacitor (9, single phase units). Examine bearing
Stationary Member
(28A) Polished Face Out
Seal Pusher
Seal Plate (5) for L series
and (29) for DS series
FIGURE 9
Motor & Seal Plate
Bullet Rotating Member
(28B)
Seal Pusher
FIGURE 10
FIGURE 8
FIGURE 11

14
(25) and replace if required. If replacement is required, remove
bearing (25) from motor shaft using a wheel puller or arbor
press, see Figure 12
Check motor capacitor (9, single phase units) with an Ohm
meter by rst grounding the capacitor by placing a screwdriver
across both terminals and then removing screwdriver. Connect
Ohm meter (set on high scale) to terminals. If needle moves
to innity (∞) then drifts back, the capacitor is good. If needle
does not move or moves to innity (∞) and does not drift back,
replace capacitor (9). To test the oat switch (55 or 56 optional),
check for continuity between the pin receptacles of the cord
with the oat in an “up” position. There should be no continuity
with the switch in the “down” position. Replace switch (55
or 56) if malfunctioning. If moisture sensors (4, optional) are
damaged, disconnect leads by removing machine screws (45)
and washers (46) from probes (4). Remove probes (4) from
seal plate (5). To test the temperature sensor (50, optional),
check for continuity between the black and white wires. If
found to be defective, contact a motor service station or Barnes
Pumps Service department. Inspect motor winding for shorts
and check resistance values. Check rotor for wear. If rotor or
the stator windings are defective, the complete motor must be
replaced.
IMPORTANT! - All parts must be clean before reassembly.
F-4.2) Reassembly:
Moisture Sensors, DS Models - If pump is equipped with
optional moisture sensors, reassemble by applying thread
compound to threads on probes (4) and install in upper seal
plate (5), see Figure 20 & 21. Connect wire assemblies (53) to
probes (4) with washers (46) and machine screws (45).
Thermal Sensors - If pump is equipped with optional thermal
sensors, use terminal connectors (52) to connect wire
assemblies (51) to sensor leads. If sensor is not functioning,
contact factory approved Service Center or Contact factory
Service Department.
Bearings - When replacing bearing, be careful not to damage
the rotor or shaft threads. Clean the shaft thoroughly. Press
bearing (25) on the motor shaft, position squarely onto the
shaft applying force to the inner race of the bearing only, until
bearing seats against the retaining ring (24) (Included with
motor).
Motor - Slide lower bearing (25) and motor shaft
squarely into the seal plate (5) until bearing seats on
the bottom. Place stator over rotor, lining up motor bolts with
holes in seal plate (5). Position capacitor (9, single phase units)
so that it will lay on the opposite side of the cable entry bosses
of the motor housing (6). Reconnect capacitor leads. Torque
motor tie bolts to 17 in-lbs. Set square ring (27) in groove on
seal plate (5).
F-4.3) Wiring Connections:
Check power cables (16) and control cable (56, if used), for
cracks or damage and replace if required (see Figure 14).
Make internal wiring connections which are independent of
the terminal block as shown, using connectors (48) and wire
assemblies (49) and (63) as required. Do not use wire nuts. Slip
motor leads and groud wire through berglass sleeve. Lower
motor housing (6) down onto seal plate (5) while aligning holes
and stringing motor leads through the cable entry bore(s).
(Slipping cords inside a 1 ft. length of .5” conduit makes this
easier). Place socket head cap screws (47) through seal plate
(5) into motor housing (6) and torque to 60 in-lbs.
Reconnect motor and optional control leads to the underside
of the terminal block(s) (21), (54 optional) as shown in
Figure 13. Note that the pins are numbered underneath the
terminal block. Place o-ring (20) into groove in terminal block
and lubricate with dielectric oil. Press the terminal block (21)
into the housing so it seats completely below the snap ring
groove. Place snap ring (19) into groove in cable entry bore of
housing. Repeat terminal block installation for control cable, if
equipped.
F-4.4) Cable Assemblies:
Power/Control Cable- Rell the cooling oil as outlined in
paragraph F-1.3. Make wire connections as outlined in
paragraph F-4.3. Insert female end of cable plug into housing
bore aligning timing mark with hole in terminal block (21) see
Figure 15. Compress cable plug with compression ange
(16a) by tightening hex bolts (11) into the housing (6). Torque
to 132 in-lbs.
SECTION: G REPLACEMENT PARTS
G-1
FIGURE 12
FIGURE 15

15
FIGURE 14
ORDERING REPLACEMENT PARTS:
When ordering replacement parts, ALWAYS furnish the
following information:
1. Pump serial number and date code. (Paragraph G-4)
2. Pump model number. (Paragraph G-3)
3. Pump part number. (Paragraph G-2)
4. Part description.
5. Item part number.
6. Quantity required.
7. Shipping instructions.
8. Billing Instructions.
G-2 PART NUMBER:
The part number consists of a six (6) digit number, which
appears in the catalog. A one or two letter sufx may follow
this number to designate the design conguration. This
number is used for ordering and obtaining information.
G-3 MODEL NUMBER:
This designation consists of numbers and letters which
represent the discharge size, series, horsepower, motor
phase and voltage, speed and pump design. This number is
used for ordering and obtaining information.
G-4 SERIAL NUMBER:
The serial number block will consist of a six digit number,
which is specic to each pump and may be preceded by
a alpha character, which indicates the plant location. This
number will also be sufxed with a four digit number, which
indicates the date the unit was built (Date Code).
EXAMPLE: A012345 0490.
Reference the six digit portion (Serial Number) of this number
when referring to the product.

16
FIGURE 13

17
FIGURE 13

18
FIGURE 13 - CONTIUED

19
TROUBLE SHOOTING
CAUTION ! Always disconnect the pump from the electrical power source before handling.
If the system fails to operate properly, carefully read instructions and perform maintenance recommendations.
If operating problems persist, the following chart may be of assistance in identifying and correcting them:
MATCH “CAUSE” NUMBER WITH CORRELATING “CORRECTION” NUMBER.
NOTE: Not all problems and corrections will apply to each pump model.
PROBLEM CAUSE CORRECTION
Pump will not run 1. Poor electrical connection, blown fuse,
tripped breaker or other interruption of power,
improper power supply.
2. Motor or switch inoperative (to isolate
cause, go to manual operation of pump).
2a. Flaot movement restricted.
2b. Switch will not activate pump or is defec-
tive.
3. Insufcient liquid level.
1. Check all electrical connections for
security. Have electrician measure current
in motor leads, if current is within ±20%
of locked rotor Amps, impeller is probably
locked. If current is 0, overload may be
tripped. Remove power, allow pump to cool,
then recheck current.
2a. Reposition pump or clean basin as
required to provide adequate clearance for
oat.
2b. Disconnect level control. Set ohmmeter
for a low range, such as 100 ohms full scale
and connect to level control leads. Actuate
level control manually and check to see that
ohmmeter shows zero ohms for closed switch
and full scale for open switch. (Float Switch).
3. Make sure liquid level is at least equal to
suggested turn-on point.
4. Recheck all sizing calculations to
determine proper pump size.
5. Check discharge line for restrictions,
including ice if line passes through or into
cold areas.
6. Remove and examine check valve for
proper installation and freedom of operation.
7. Open valve.
8. Check cutter for freedom of operation,
security and condition. Clean cutter and inlet
of any obstruction.
9. Loosen union slightly to allow trapped air
to escape.Verify that turn-off level of switch
is set so that the suction is always ooded.
Clean vent hole.
10. Remove & examine for damage. Replace
pump stator if required.
11. Repair xtures as required to eliminate
leakage.
12. Check pump temperature limits & uid
temperature.
13. Replace portion of discharge pipe with
exible connector.
14. Turn to automatic position.
15. Check for leaks around basin inlet and
outlets.
Pump will not turn off 2a. Float movement restricted.
2b. Switch will not activate pump or is defec-
tive.
4. Excessive inow or pump not properly sized
for application.
9. Pump may be airlocked.
14. H-O-A switch on panel is in “HAND” posi-
tion
Pump hums but does not run 1. Incorrect voltage
8. Cutter jammed or loose on shaft, worn or
damaged, inlet plugged.
Pump delivers insufcient capacity 1. Incorrect voltage.
4. Excessive inow or pump not properly sized
for application.
5. Discharge restricted.
6. Check valve stuck closed or installed
backwards.
7. Shut-off valve closed.
8. Cutter jammed or loose on shaft, worn or
damaged, inlet plugged.
9. Pump may be airlocked.
10. Pump stator damaged/torn.
Pump cycles too frequently or runs
periodically when xtures are not in use
6. Check valve stuck closed or installed
backwards.
11. Fixtures are leaking.
15. Ground water entering basin.
Pump shuts off and turns on indepen-
dent of switch, (trips thermal overload
protector). CAUTION! Pump may start
unexpectedly. Disconnect power supply.
1. Incorrect voltage.
4. Excessive inow or pump not properly sized
for application.
8. Cutter jammed, loose on shaft, worn or
damaged, inlet plugged.
12. Excessive water temperature.
Pump operates noisily or vibrates
excessively
4. Operating at too high a pressure.
5. Discharge restricted.
8. Cutter broken.
13. Piping attachments to buiding structure too
rigid or too loose.

20
FIGURE 16
SE- L & 3SE- L Series, Single Seal