Multiquip ST4125G, ST6125G operation manual Impeller Removal, Long Term Storage, Water Tank Storage

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MAINTENANCE

Impeller Removal

Refer to the the following procedure and Figure 19 for the removal of the impeller.

1.Remove oil plug (item 193) and o-ring (item 194). Drain oil from oil chamber as referenced in Figure 18.

2.Remove suction strainer/ring stand (item 84A).

3.Remove the six suction cover bolts and washers (items 188A/188B) that secure the suction cover (item 189) to the pump housing (item 50). Remove suction cover (item 189).

4.Remove impeller cap nut (item 188) and washer (item 66) from motor shaft.

5.Remove impeller (item 49), gap washer (item 49A) and impeller key (item 9A) from motor shaft.

6.Reassemble in reverse order.

Figure 19. Impeller Removal

NOTICE

Clearance between impeller and wear plate should be between .011~.019 in. (0.3~0.5 mm). If impeller is defective or badly worn, replace immediately.

Long Term Storage

1.Area must be free from excessive humidity, corrosive gases, vapors or vibrations which might damage the pump.

2.Store pump in a vertical position on a pallet or stand.

3.Coil up the cable, and seal the open end (control box wires) with waterproof tape or a cable cap. This will prevent moisture from penetrating into the motor which could cause severe damage to the windings.

4.Give all unpainted surfaces a light coat of oil or grease to prevent corrosion.

5.If new pumps are stored for more than two months, turn the impeller by hand every two months to prevent the mechanical seal faces from seizing up. Failure to do this may result in seal damage when the pump is started.

Water Tank Storage

1.If an installed pump (immersed in water) has not been in operation for a long period of time, check the insulation resistance and run the pump for 30 minutes every month.

If the pump cannot be run due to lack of water in the tank inspect the pump and turn the impeller by hand each month and prior to putting the pump back into service. If insulation drops below 10 megohms, contact an authorized Multiquip service center.

ST4125G/ST6125G SUBMERSIBLE PUMP• OPERATION MANUAL — REV. #0 (11/18/10) — PAGE 23

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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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