Multiquip operation manual ST4125G/ST6125G Components, Submersible Pump Components

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ST4125G/ST6125G — COMPONENTS

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Figure 2. Submersible Pump Components

Figure 2 shows the location of the basic components, for the ST4125G and ST6125G 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 ST4125G pump utilizes a 60 Hz, three-phase, 230/460 VAC, 10 HP electric motor and the ST6125G pump utilizes a 60 Hz, three-phase, 230/460 VAC, 15 HP electric motor. Consult with a licensed electrician before connecting motor to a power source. Observe all city and local safety codes.

4.Discharge Port – Connect a 4-inch hose (ST4125G) or 6-inch hose (ST6125G) to this port. Remember to adequately support the discharge hose to avoid stress on the pump.

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-fi lled 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 ISO VG32 lubrication oil, Mobile DTE 24, turbine oil 90 or equivalent to the oil chamber. This oil protects the mechanical seal. Oil chamber should be full enough to cover seal spring.

ST4125G/ST6125G SUBMERSIBLE PUMP• OPERATION MANUAL — REV. #0 (11/18/10) — PAGE 11

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Contents This Manual Must Accompany the Equipment AT ALL Times Model ST4125G/ST6125GST4125G/ST6125G Submersible Pump Table of ContentsPage Symbol Safety InformationSafety Messages first aid kit General Safetyfire extinguisher  Never disconnect any emergency or Pump SafetyElectrical Safety Lifting Safety Power Cord/Cable SafetyGrounding Safety Control Box SafetyModel ST4125G/ST6125G Submersible Pump SpecificationsSpecifications ST4125G/ST6125G Pump Dimensions ST4125G/ST6125G Submersible Pump DimensionsST4125G/ST6125G General Information Submersible Pump Components ST4125G/ST6125G ComponentsHow It Works Float SwitchesMechanical Float Switch Design FeaturesMounting The Float Switches Float SwitchesThermal Float CB12/CB14 Control BoxesControl Box Specifications Control Box Used With HeaterPower Cord Requirements Control BOX InstallationControl Box Installation Phase Power Installation InputFloat Terminal Wire Connecting SW-1WOPA Float Switches to Control BoxDual Float switch Connections 230/460 VAC Voltage Selection 230/460 VAC Voltage Selection230/460 VAC Output Power Connections CB12/CB14 Control BOX Power ConnectionsPhase Power Installation Output To Pump 230/460 VAC Input Power ConnectionsSee Table CB12/CB14 Control BOX Wiring LayoutOperation Pump PlacementShut-Down Control Box Operation Auto ModeReset Button Lubrication MaintenanceWater Tank Storage Impeller RemovalLong Term Storage Why perform electrical insulation testing? Electrical Insulation TestingPump Troubleshooting TroubleshootingConnections CB12/CB14 Control BOX Wiring DiagramPage HERE’S HOW to GET Help

ST6125G, ST4125G specifications

The Multiquip ST4125G and ST6125G are versatile and robust generators that cater to a variety of demanding applications in the construction, rental, and industrial sectors. These portable generators are designed to deliver reliable power with user-friendly features that make them ideal for both professional and recreational use.

One of the standout features of the ST4125G and ST6125G models is their impressive power output. The ST4125G is capable of providing up to 4,000 watts of continuous power, while the ST6125G offers a higher capacity of 6,000 watts. This flexibility allows users to choose the model that best suits their needs, whether for powering tools on a job site or serving as backup power during an outage.

Both models are equipped with a rugged 4-stroke gasoline engine that ensures efficient performance and longevity. The engines are designed with thermal protection to prevent overheating, allowing for extended run times without interruption. Additionally, Multiquip has engineered these generators to have low noise levels while operating, making them suitable for use in residential areas and noise-sensitive environments.

The ST4125G and ST6125G come with a variety of outlets to accommodate different power needs, including 120V and 240V outlets. This versatility makes them ideal for powering everything from small hand tools to larger machinery. Furthermore, the generators feature a dual circuit breaker system for added safety, ensuring a reliable and secure power source.

Portability is another major advantage of the Multiquip ST4125G and ST6125G. Both models are designed with a steel frame and feature large wheels and a folding handle, making transport to and from job sites effortless. The compact design also allows for easy storage when not in use.

In terms of maintenance, Multiquip has incorporated user-friendly features that simplify routine checks and servicing. The generators feature easy access to critical components, allowing users to perform maintenance tasks efficiently.

With their combination of power, portability, and user-friendly features, the Multiquip ST4125G and ST6125G generators stand out in the competitive landscape of portable power solutions. Whether for construction projects, outdoor events, or emergency backup, these generators are reliable choices that meet the demands of various users.
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