COMPONENTS

Figure 2 shows a typical application using the MQD2H or MQD3H diaphragm pump. Please note that this pump is intended for the removal of clean water and water containing some debris and solids. Maximum size of solids for the MQD2H should not exceed 1- 1/2 inches (38.1 mm) in diameter, and maximum size of solids for the MQD3H should not exceed 1-5/8 inches (41.275) in diameter. DO NOT set strainer on bottom of water bed. Placing the strainer above the water bed will prevent the pump from drawing in excessive amounts of sand and foreign debris.

Contact your nearest Multiquip

NOTEdealer for quick disconnect hoses and fittings.

Figure 2. MQ-D2H/D3H Pump Application

1.

Pump – The Multiquip Models MQD2H and MQD3H are

 

2-inch and 3-inch diaphragm pumps respectively and are

 

used in general de-watering applications. Typical

 

dewatering applications consist of cleaning out cesspools

 

and septic tanks, draining slow seepage from small

 

excavations, trenches and construction sites, or pumping

 

out industrial waste.

2.

Priming Plug/Suction Priming Chamber – Fill with clean

 

water to assist with faster priming times.

3.

Discharge Port – Connect either a 2-inch or 3-inch

 

discharge hose to this port depending on pump model.

4.

NPT Connection – Used to secure the hose to the inlet

 

and outlet ports on the pump.

5.

Discharge Hose – Connect a flexible rubber hose to the

 

discharge port on the pump. Make sure that the hose lays

 

flat and is not kinked. Use only recommended type discharge

 

hose. Contact Multiquip parts department for ordering

 

information.

6. Suction Port – Connect either a 2-inch or 3-inch inlet hose to this port depending on pump model.

7. Suction Hose – Connect a flexible rubber hose to the suction port on the pump. Make sure that the hose lays flat and is not kinked. Use only recommended type suction hose. Contact Multiquip parts department for ordering information.

8. Strainer – Always attach a strainer to bottom side of the suction hose to prevent large objects and debris from entering the pump. Strainer should be positioned so that it will remain completely under water.

9. Transmission Oil Fill Plug – Remove this plug to add SAE 80/90 EP (API GL-5) gear oil to the transmission. Transmission oil capacity is 22 ounces (651 ml.).

10. Connecting Rod Grease Access Hole – Grease connecting rod bearing through this access hole. Grease connecting rod bearing every 25 hours of operation.

MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11) — PAGE 13

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Multiquip MQD2H manual Components, Contact your nearest Multiquip
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MQD2H specifications

The Multiquip MQD2H is a versatile and robust diesel-powered generator designed to cater to a wide range of applications, making it a staple for construction sites, emergency backup, and outdoor events. Engineered with advanced technologies, this generator is built to deliver reliable power and withstand challenging environments.

At the heart of the MQD2H is a powerful, fuel-efficient diesel engine that ensures long operational hours with minimal downtime. This efficiency is crucial for projects requiring continuous power supply. Equipped with a large fuel tank, the MQD2H can operate for extended periods without the need for frequent refueling, enhancing productivity on the job site.

One of the standout features of the MQD2H is its robust construction. The generator is housed in a durable frame that protects it from physical damage and harsh weather conditions. Its compact design allows for easy transportation and maneuverability, making it ideal for various locations. Additionally, the generator is equipped with advanced soundproofing technology, reducing operational noise levels and making it suitable for use in noise-sensitive environments.

The MQD2H is designed with user convenience in mind. It features an intuitive control panel that provides easy access to vital operational information, allowing users to monitor the generator's performance at a glance. The control panel includes circuit breakers, start/stop switches, and hour meters, ensuring that operators have full control over the generator’s functionality.

Safety is also a priority with the Multiquip MQD2H. The generator incorporates automatic shutdown features for low oil pressure and high engine temperature, protecting the unit from potential damage. This built-in safety mechanism provides peace of mind for operators, knowing that the generator is safeguarded against operational hazards.

Furthermore, the MQD2H complies with emission regulations, making it an environmentally friendly choice among generators. The design includes technologies that minimize harmful emissions without compromising power output, adhering to industry standards and promoting cleaner operation.

In conclusion, the Multiquip MQD2H is a reliable, durable, and efficient generator ideal for a multitude of applications. With its powerful diesel engine, user-friendly controls, enhanced safety features, and commitment to environmental sustainability, it stands out as a top choice for professionals seeking dependable power solutions in demanding conditions.
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