Multiquip ST4125D User Manual

OPERATION AND PARTS MANUAL

Submersible Pumps

Model ST4125D Model ST6125D

Revision #1 (06/12/08)

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

ST-4125D/ST-6125D — TABLE OF CONTENTS

Multiquip ST-4125D/ ST-6125D Submersible Pumps

Table Of Contents ..................................................... 2

Parts Ordering Procedures ....................................... 3

Safety Message Alert Symbols ................................. 5

Rules For Safe Operation ...................................... 6-7

Dimensions ............................................................... 8

Specifications (Pump) ...............................................9

General Information ................................................10

Submersible Pump Components ............................11

Float Switches ......................................................... 12

Control Boxes.......................................................... 13

Control Box Installation ...........................................14

230/460 VAC Voltage Selection ...............................15

Control Box Wiring Diagram ....................................16

Three-Phase Power Installation ........................ 17-18

Set-up ..................................................................... 19

Operation .......................................................... 20-21

Maintenance ........................................................... 22

Troubleshooting ......................................................23

Performance Curves ...............................................24

Explanation Of Codes In Remarks Column ............26

Suggested Spare Parts ........................................... 27

Submersible Pump Component Drawings

ST-4125D Submersible Pump Assembly ........... 28-29

ST-6125D Submersible Pump Assembly ........... 30-33

Terms and Condition of Sale ...................................34

Specification and part numbers

NOTE

are subject to change without notice.

PAGE 2 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)

PARTS ORDERING PROCEDURES

Ordering parts has never been easier!

Choose from three easy options:

Effective:

January 1

, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■

View Parts Diagrams

■

Order Parts

■

Print Specification Information

Goto www.multiquip.com and click on

Order Parts

to log in and save!

Order via Fax (Dealers Only):

All customers are welcome to order parts via Fax.

Domestic (US) Customers dial:

1-800-6-PARTS-7 (800-672-7877)

Non-Dealer Customers:

Contact your local Multiquip Dealer for parts or call 800-427-1244 for help in locating a dealer near you.

Order via Phone:

If you have an MQ Account, to obtain a Username and Password, E-mail us at:

parts@multiquip.com.

To obtain an MQ Account, contact your District Sales Manager for more information.

internet

Use the on

Standard orders

and qualify for a 5% Discount

for all orders which include

complete part numbers.*

Fax

your order in and qualify for a 2% Discount

Standard orders

for all orders which include

complete part numbers.*

Domestic (US) Dealers Call:

1-800-427-1244

International Customers

their local Multiquip Representatives for Parts Ordering information.

Note: Discounts Are Subject To Change

should contact

When ordering parts, please supply:

❒❒

❒

❒❒

Dealer Account Number

❒

❒❒

❒

Dealer Name and Address

❒❒

❒

Shipping Address (if different than billing address)

❒❒

❒

Return Fax Number

❒❒ ❒❒

❒

Applicable Model Number

❒❒

❒

Quantity, Part Number and Description of Each Part

❒❒

All orders are treated as

Standard Orders

and will ship the same day if received prior to 3PM PST.

www.multiquip.com

WE ACCEPT ALL MAJOR CREDIT CARDS!

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 3

Specify Preferred Method of Shipment:

❒❒

✓

UPS/Fed Ex

■

Priority One

■

Ground

■ Next Day

■

Second/Third Day

✓ DHL ✓

Tr u c k

NOTES

PAGE 4 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)

ST-4125D/ST-6125D — 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

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

4125D/ST6125D Submersible Pumps.

ensure that the operating individual has read and understands all instructions in this manual.

Before using these pumps,

Models ST-

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 submersible pump's 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

SERIOUSLY

if you DO NOT follow directions.

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.

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 5

ST-4125D/ST-6125D — RULES FOR SAFE OPERATION

■

WARNING - Read This Manual

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 ST-4125D/ST-6125D 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.

NEVER use gas piping as an electrical ground.

■

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 ST-4125D and ST-6125D submersible pumps require 230 or 460 VAC (three-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 in 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

wet hands

■

NEVER let an extension cord or plug connection

■

NEVER to a power source.

■

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.

■

Manufacturer 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

■

ALWAYS make sure submersible pump is grounded.

bodily harm or even death.

NEVER use a pump with a defective, frayed power cord.

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.

■

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.

■

ALWAYS make sure that electrical circuits are properly

grounded

stand in water

while AC power cord is connected

ALWAYS

per the

National Electrical Code

lay in wate

disconnect the electrical power

(NEC) and

PAGE 6 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)

ST-4125D/ST-6125D

—

RULES FOR SAFE OPERATION

local codes before operating pump. by

electrocution

pump.

■

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.

■

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.

can result from operating an

Severe injury

death

ungrounded

Flush with clean fresh

Emergencies

■

ALWAYS know the location of the nearest

■

fire extinguisher

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

■

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.

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 7

ST-4125D/ST-6125D — DIMENSIONS

13.5 in

(343 mm)

13.5 in

(343 mm)

ST-4125D

SUBMERSIBLE

PUMP

33.5 in

(851 mm)

11 in

(279 mm)

ST-6125D

SUBMERSIBLE

PUMP

39 in

(991 mm)

11.75 in

(298 mm)

11.75 in

(298 mm)

ST-4125D ST-6125D

Figure 1. Submersible Pump Dimensions

PAGE 8 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)

ST-4125D/ST-6125D — SPECIFICATIONS

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etunim/snollag464

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)etunim/sretil903,2(

)V032(512

)V064(801

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thgieH)mc1.38(ni7.23)mc6.89(ni8.83

retemaiD)mc63(ni2.41)mc63(ni2.41

1. Motor Rotation – Upon start-up, the pump " 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) is required for use to provide thermal overload protection to the pump.

kicks

" in the opposite direction of motor rotation. The correct rotation is

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 9

ST-4125D/ST-6125D — GENERAL INFORMATION

The Multiquip Model ST-4125D and ST-6125D submersible pumps are designed to pump water. These pumps work best when faced with high head applications where you need an appreciable flow.

The ST-4125D and ST-6125D submersible pumps have dual voltage, easily switched between 230 and 460 volts.

These pumps have a heavy-duty cast iron body that is very durable and able to withstand rough handling. The ST-4125D comes with NPT threads for standard hose connections while the ST-6125D is equipped with 6-inch flange fittings.

The mechanical seal of these pumps operates within an oilfilled chamber that provides positive lubrication. This helps prevent damage in the event the pump is run dry for short periods of time.

PAGE 10 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)

ST-4125D/ST-6125D — SUBMERSIBLE PUMP COMPONENTS

ST-4125D

SUBMERSIBLE

PUMP

ST-4125D

Figure 2. Submersible Pump Components

Figure 2 shows the location of the basic components, for the ST-4125D and ST-6125D submersible pumps. Listed below is a brief explanation of each component.

1. Strainer Base – This strainer base is made of stainless steel which is resistant to hardware corrosion. For dewatering purposes, always place the strainer base on a platform.

2. Volute/Impeller – Impellers are constructed of cast ductile iron to minimize wear and prolong service life.

3. Electric Motor – The ST-4125D pump utilizes a 60 Hz, three-phase, 230/460 VAC, 10 HP electric motor and the ST-6125D pump utilizes a 60 Hz, three-phase, 230/ 460 VAC, 15 HP electric motor. Consult with a

electrician

Observe all city and local safety codes.

4. Discharge Port – Connect a 4-inch hose (ST-4125D) or 6-inch hose (ST-6125D) to this port. Remember to adequately support the discharge hose to avoid stress on the pump.

before connecting motor to a power source.

licensed

5. AC Power Cable – These pumps are supplied with a

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.

6. Eye Bolts – Always lift the submersible pump by the eye bolts using a chain and lifting device capable of lifting about 400 lbs. NEVER lift the pump by its power cord! 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. 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.

8. 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.

ST-6125D

SUBMERSIBLE

PUMP

ST-6125D

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 11

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