Multiquip ST2037, ST2047, ST2047B, ST2038P, ST2040T User Manual
OPERATION AND PARTS MANUAL
MODELS:
ST2037
ST2047
ST2047B
ST2038P
ST2040T
SUBMERSIBLE PUMPS
Revision #6 (09/19/19)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
ST2037, 47, 47B, 40T, 38P SERIES SUB. PUMPS — TABLE OF CONTENTS
Multiquip ST2037, ST2047,
ST2047B ST2038P and
ST2040T Submersible
Pumps
Table Of Contents ..................................................... 2
Safety Message Alert Symbols ................................. 4
Rules For Safe Operation ...................................... 5-6
Dimensions ............................................................... 7
Specifications (Pump/Control Box) ........................... 8
General Information .................................................. 9
Components............................................................10
Float Switches .........................................................11
Float Switch (Piggy-Back) .......................................12
Float Switch (Control Box) ......................................13
Operation ................................................................14
Control Box Installation ..................................... 15-16
Clean-up .................................................................17
Maintenance ........................................................... 18
Troubleshooting ...................................................... 19
Performance Curves ............................................... 20
Pump Wiring Diagram .............................................21
Explanation Of Codes In Remarks Column ............22
Suggested Spare Parts ...........................................23
Submersible Pump
Component Drawings
ST2037,ST2047, 2047B Pump Assembly ......... 24-25
ST2040T Pump Assembly ................................. 26-27
ST2038P Pump Assembly .................................. 28-29
As a continuing effort to update
NOTE
our parts book, contact the
MULTIQUIP literature department
for the latest revision of your
"Operation and Parts Manual"
PAGE 2 — ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19)
NOTE PAGE
ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19) — PAGE 3
ST2037, 47, 47B, 38P, 40T SUB. PUMP— SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
Safety precautions should be followed at all times when
operating this equipment. Failure to read and understand the
Safety Messages and Operating Instructions could result in
injury to yourself and others.
This Owner's Manual has been
developed to provide complete
instructions for the safe and efficient
NOTE
this manual.
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure to
the operator, and are preceded by one of three words: DANGER,
WARNING, or CAUTION.
operation of the Multiquip
ST2037, ST2047, ST2047B,
ST2038P, and ST2040T
Submersible Pumps.
these pumps, ensure that the
operating individual has read and
understands all instructions in
Model s
Before using
HAZARD SYMBOLS
Rotating Parts
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
Accidental Starting
ALWAYS place the power source circuit
breaker or ON/OFF switch in the OFF
position, when the pump is not in use.
Sight and Hearing hazard
DANGERDANGER
DANGER
DANGERDANGER
You WILL be
NOT follow directions.
You CAN be
NOT follow directions.
CAUTION
You CAN be
Potential hazards associated with the ST2037, ST2047,
ST2047B, ST2038P, and ST2040T submersible pumps
operation will be referenced with Hazard Symbols which appear
throughout this manual, and will be referenced in conjunction
with Safety Message Alert Symbols.
KILLED
WARNINGWARNING
WARNING
WARNINGWARNING
KILLED
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
INJURED
or
SERIOUSLY
or
SERIOUSLY
if you DO NOT follow directions.
injured if you DO
injured if you DO
Other important messages are provided throughout this manual
to help prevent damage to your submersible pump, other property,
or the surrounding environment.
ALWAYS wear approved eye and
hearing protection, if required.
Respiratory Hazard
ALWAYS wear approved respiratory
protection, if required.
Equipment Damage Messages
This submersible pump, other
property, or the surrounding
NOTE
environment could be damaged if
you do not follow instructions.
PAGE 4 — ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19)
ST2037, 47, 47B, 38P, 40T SUB. PUMP — RULES FOR SAFE OPERATION
■
NEVER use gas piping as an electrical ground.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Failure to follow instructions in this manual may lead to serious
injury or even death! This equipment is to be operated by
trained and qualified personnel only! This equipment is for
industrial use only.
The following safety guidelines should always be used when
operating the ST2037, ST2047, ST2047B, ST2038P, and
ST2040T Submersible Pump:
GENERAL SAFETY
■
DO NOT operate or service this equipment
before reading this entire manual.
■
This equipment should not be operated by
persons under 18 years of age.
■
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required by the job.
■
DO NOT place hands or fingers inside pump when pump is
running.
■
ALWAYS make certain that the voltage supplied to the pump
is correct. Always read the pump's nameplate to determine
what the power requirements are. The ST2037, ST2047,
ST2038P, and ST2040T submersible pumps require 115
VAC, 60 Hz (single-phase) for normal operation.
■
DO NOT restrict the flow of the discharge hose as it may
cause overheating.
■
Be careful of discharge whipping under pressure.
■
Make sure pump installation is accordance with national
and local electrical codes.
■
ALWAYS have a qualified electrician perform the pump
wiring installation.
■
ALWAYS mount the control box in a vertical position
protected from the elements.
■
NEVER handle pump's AC power cord with
■
NEVER let an extension cord or plug connection
wet hands
lay in wate
.
r.
■
NEVER
to a power source.
■
NEVER use a pump with a defective, frayed power cord.
■
NEVER operate this equipment when not feeling
well due to fatigue, illness or taking medicine.
■
NEVER operate this equipment under the
influence or drugs or alcohol.
■
NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to the
equipment and/or injury to user may result.
■
Manufacture does not assume responsibility for any accident
due to equipment modifications.
■
Whenever necessary, replace nameplate, operation and safety
decals when they become difficult read.
■
ALWAYS check the machine for loosened threads or bolts
before starting.
■
NEVER operate the submersible pump in an explosive
atmosphere or near combustible materials. An explosion or fire
could result causing severe
bodily harm or even death.
Check the power cord on the pump for cuts in the insulation.
■
NEVER use a extension cord that is frayed or damaged
where the insulation has been cut.
■
ALWAYS make certain that proper extension cord has been
selected for the job See Table 4.
■
NEVER attempt to use the power cord as a lifting or lowering
device for the submersible pump.
■
When raising or lowering of the submersible pump is
required, always attach an adequate rope or lifting device
to the correct lifting point (handle) on the pump.
■
ALWAYS place the pump in an upright position on a platform
before using. The platform will prevent the pump from
burrowing itself on soft sand or mud.
■
NEVER operate pump on its side.
■
DO NOT allow the pump to freeze in water.
■
NEVER leave an open pump chamber unattended.
■
The electrical voltage required to operate the pump can
cause severe injury or even death through physical contact
with live circuits.
from the pump before performing maintenance on the pump.
stand in water
while AC power cord is connected
ALWAYS
disconnect the electrical power
■
ALWAYS make sure submersible pump is grounded.
ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19) — PAGE 5
ST2037, 47, 47B, 38P, 40T SUB. PUMP
■
ALWAYS make sure that electrical circuits are properly
grounded
local codes before operating pump.
by
electrocution
pump.
.
Risk of Electric Shock -
grounding conductor and grounding-type attachment plug.
To reduce the risk of electric shock, be certain that it is
connected only to a properly grounded, grounding-type
receptacle.
Risques de chocs électriques - Risques de chocs
électriques. Cette pompe est alimentée en électricité au
moyen d’un conducteur et d’une fiche d’alimentation de terre.
Afin de réduire les risques de chocs électriques, s’assurer
que la pompe est uniquement connectée à des boîters de
protection de mise à la terre correctement enterrés.
per the
National Electrical Code
Severe injury
can result from operating an
(NEC) and
or
ungrounded
death
WARNING- Risk of Electric Shock
This pump is supplied with a
AVERTISSEMENT- Risques De Chocs Électriques
—
■
ALWAYS store equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of the
reach of children.
■
ALWAYS read, understand, and follow procedures in
Operator’s Manual before attempting to operate equipment.
.
Maintenance Safety
■
NEVER lubricate components or attempt service on a running
machine.
■
ALWAYS allow the machine a proper amount of time to cool
before servicing.
■
Keep the machinery in proper running condition.
■
Fix damage to the machine immediately and always replace
broken parts
Emergencies
■
ALWAYS know the location of the nearest
RULES FOR SAFE OPERATION
fire extinguisher
.
■
NEVER use this pump to remove water from a swimming pool
people are in the water
when
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using
submersible pump.
■
ALWAYS check pump oil level only when pump is cool.
Expansion due to heat may cause hot! oil to spray from the oil
plug when the oil plug is removed.
■
DO NOT attempt to thaw-out a frozen pump by using a torch
or other source of flame. Application of heat in this manner
may heat the oil in the seal cavity above the critical point,
causing pump damage.
■
DO NOT pump water greater than 104 degrees Fahrenheit.
Also DO NOT pump liquids containing acid or alkali.
■
ALWAYS check strainer before pumping. Make sure strainer
is not clogged. Remove any large objects, dirt or debris from
the strainer to prevent clogging.
■
■
ALWAYS use a large basket strainer when pumping
water that contain large debris.
ALWAYS flush pump after use when pumping water
concentrated with heavy debris.
water
. It is very important to always flush the pump before
turning it off to prevent clogging.
.
Flush with clean fresh
■
■
ALWAYS know the location of the nearest and
In emergencies
nearest phone or
Also know the phone numbers of the nearest
ambulance, doctor
information will be invaluable in the case of an
emergency.
always
know the location of the
keep a phone on the job site
and
fire department
first aid kit
.
. This
.
PAGE 6 — ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19)
ST2037, 47, 47B, 38P, 40T SUB. PUMP — DIMENSIONS
Figure 1. Submersible Pump Dimensions
ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19) — PAGE 7
ST2037, 47, 47B, 38P, 40T SUB. PUMP — SPECIFICATIONS
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1. Motor Rotation – Upon start-up, the pump "
kicks
" in the opposite direction of motor rotation. The correct rotation is
counterclockwise (CCW) as viewed from the impeller end of the pump.
2. Mechanical Seal Oil – Use a good grade 10 weight non-detergent hydraulic oil (i.e. Shell Turbo 32 or equivalent). Fill oil cavity
75% to 85% full (allow air space for expansion).
3. Control Box - Control box (Table 2) may be required for certain pumping applications.
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PAGE 8 — ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19)
ST2037, 47, 47B, 38P, 40T SUB. PUMP — GENERAL INFORMATION
Introduction
The Multiquip Model ST2037, ST2047, ST2047B, ST2038P, and
ST2040T submersible pumps are designed to pump water and
is used for the draining (de-watering) of swimming pools, well
casings construction sites, cofferdams, manholes, transformer
vaults and excavations.
A Nitorile rubber over steel impeller is attached to the output
shaft of a 1HP electric motor which provides adequate power for
general purpose pumping. This submersible pump is supplied
complete with an electric power cable, and a discharge port
located at the top of the pump which accepts a 2-inch hose.
This pump is ideal for portability because of its light weight and
carrying handle. For reliability and long life, a mechanical seal
provides shaft sealing, with an oil chamber separating the pump
section from the motor.
The pump when in use, should be installed as free standing
(upright position) on its strainer base. A 2-inch discharge hose
(not supplied) should be connected to the discharge port located
on top of the pump. The discharge hose should be adequately
supported to avoid stress on the pump.
For maximum water flow, the discharge hose should be kept as
short as possible, and with minimum elevation above the pump.
Remember as the length and/or height of the discharge hose is
increased, the flow of water will be reduced. Also any reduction
in the hose size, and any fittings such as valves or outlet nozzles,
will restrict the water flow.
To avoid back-siphonage when the pump is switched off, ensure
that the end of the discharge hose is installed above the water
level at the final discharge point.
When the pump is switched off, the water remaining in the hose
will run back through the pump. This can be avoided by placing
a non-return valve in the hose nearest the pump.
If the pump was used to pump water containing mud, silt, use
clean water to flush out the pump after each use.
DO NOT allow the pump to run dry, as this will damage the
pump. During maintenance, dry running is permissible but only
for a few seconds.
NEVER lift the pump by its electrical power cord. ALWAYS lift
the pump by its carrying handle or attach a rope to the carrying
handle.
A pump fully submerged pump in liquid will not freeze, unless
the liquid freezes. DO NOT allow a partially submerged pump to
freeze. The expansion of water freezing in the volute may crack
the pump, causing expensive repairs. If there is any danger of
the pump being subjected to freezing temperatures, Lift the pump
from water and allow it to drain thoroughly.
If the pump jams or the pump rotor locks for any reason,
disconnect the pump from the power source immediately.
Allowing the pump motor to cycle ON and OFF under an overload
condition can burn out the motor.
When replacement of nuts and bolts is required, use only
recommended parts as referenced in the parts section of this
manual. This pump uses
measurement threads.
Control Box Installation Warnings
When installing the CB3 control box, the
possibility exists of
electrocution
untrained personnel perform the installation.
ALWAYS have qualified service personnel (licensed
electrician) perform the installation.
DANGERDANGER
DANGER
DANGERDANGER
and possibly
metric
threads. DO NOT use English
electrical shock
death!
NEVER have
,
NEVER use this submersible pump to pump flammable liquids
WARNINGWARNING
WARNING
or operate in a explosive or flammable environment.
Avoid using this pump in conditions where mud, grit, silt or other
debris are present. These conditions could cause blockage and
cause excessive pump wear.
DO NOT install the pump directly into an area where there is a
heavy buildup of mud, grit, silt or debris. If this condition is present,
install the pump on a platform before operating.
This pump must always be positioned on a platform in an upright
position. NEVER operate the pump by a suspended rope. To
prevent large solids from entering the pump, install a wire mesh
screen or similar barrier around the pump.
ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19) — PAGE 9
Failure to follow the above referenced precautions could result
in serious injury or death! Replace pump cord immediately if
cord becomes damaged or severed. This pump must be installed
in accordance with National Electric Code ANSI/NFPA 70 so as
to prevent moisture from entering or accumulating with the boxes,
conduit bodies fittings, float housing or cable.
WARNINGWARNING
Explosion or Fire Hazard exists if this
pump is used with
NOT use this pump with
liquids
hazardous locations as defined by the National Electrical
Code, ANSI/NFPA 70.
. DO NOT install this pump in
flammable liquids
flammable
. DO
ST2037, 47, 47B,38P, 40T SUB. PUMP — COMPONENTS
ST2037, ST2047, ST2047B ST2038P
Figure 2. Submersible Pump Components
Figures 2 shows the location of the basic components, for the
ST2037, ST2047, ST2047B, ST2038P, and ST2040T
submersible pumps. Listed below is a brief explanation of each
component.
1. Strainer Base – This strainer base is made of electrocating
steel which is resistant to hardware corrosion. DO NOT
pump large objects or debris with this pump. This pump is
for pumping water only. For de-watering purposes, always
place the strainer base on a platform.
2. Volute/Impeller – Impellers are constructed of Nitorile
Rubber to minimizes wear and prolong service life.
3. Electric Motor – These submersible pumps utilize a 60
Hz, single-phase, 115 VAC, 1 HP electric motor. Consult
licensed electrician
with a
power source. Observe all city and local safety codes.
4. Discharge Port – Connect a 2-inch hose to this port.
Remember to adequately support the discharge hose to
avoid stress on the pump.
before connecting motor to a
6. Carrying Handle – Always carry the submersible pump
by its handle. NEVER! carry the pump by its power cord.
Carrying or lifting the pump by the power cord, will cause
undue stress on the cord, and ultimately the cord will
become dislodged from the pump.
7. Thermal Overload Protection – This pump is equipped
with a thermal overload protection device that will shut down
the motor in the event of high operating temperatures. The
motor will automatically restart once the temperature returns
to an acceptable operating temperature.
8. Mechanical Seal Oil – This oil filled seal provides
lubrication when running the pump dry. NEVER! run the
pump dry. Running the pump dry will cause severe damage
to the pump.
9. Mechanical Seal Oil Plug – Remove this plug to check
and add hydraulic oil (Shell 32 or equivalent) to the oil
cavity. This oil protects the mechanical seal. Oil cavity should
be full enough to cover seal spring.
ST2040T
5. AC Power Cable – This unit is supplied with a 25 ft. (7.6
meters) or 50 ft. (15.2 meters) AC power cable. Always
check the cable for signs of wear. NEVER! use a defective
power cable. Replace the cable immediately if the cable is
worn or defective.
PAGE 10 — ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (09/19/19)
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