QP-204H Maintenance Pump, Pump Vacuum Test

QP-204H — MAINTENANCE (PUMP)

Pump Vacuum Test

CAUTION - Pump Priming

DO NOT attempt to start the engine unless the pump has previously been primed with water. Severe pump damage will occur if pump has not been primed.

To perform the pump vacuum test do the following:

1.Remove the pump fill cap (Figure 2), and fill the pump with water.

2.Start the engine as outlined in the initial start-up section, and wait for the pump to begin pumping.

3.As shown in Figure 18 (next page), place a water hose inside the discharge opening of the pump, and turn on the water. This flow of water into the discharge opening will prevent the pump from running dry.

4.Place the Pump Vacuum Tester (P/N 7000030) over the pump suction (inlet) opening (Figure 18) with the vacuum gauge facing upwards. It may be necessary to apply a small amount of water around the rubber seal of the vacuum tester to make a good suction fit.

5.Check and make sure that there are no air leaks between the vacuum tester and the inlet port on the pump. If air leaks are present reset vacuum tester.

6.Run the pump for a few minutes while monitoring the vacuum gauge. If the gauge indicates a reading between -25 and -20 in. Hg. (inches of mercury) then it can be assumed that the pump is working correctly.

	25 in. Hg (inches of mercury)
NOTE	translates into 25 feet of lift at sea
	level.

7.If the vacuum tester gauge indicates a reading below -20 in. Hg, it can then be assumed that the pump is not functioning correctly, and corrective action needs to be taken.

8.To test the flapper valve, shut down the engine. The vacuum tester should remain attached to the pump suction inlet port by vacuum. This indicates the pump's flapper valve is seating properly to hold water in the suction hose when the engine is stopped.This prevents backflow and allows for faster priming when the engine is restarted.

PAGE 20 — QP-204H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #3 (06/05/06)

QP-204H specifications

The Multiquip QP-204H is a powerful and versatile portable generator designed to meet the needs of various applications, from construction sites to outdoor events. As a part of Multiquip's lineup of reliable power equipment, the QP-204H combines innovation, efficiency, and durability to deliver exceptional performance.

At the heart of the QP-204H is a robust Honda GX160 engine, known for its reliability and fuel efficiency. This 4-stroke, air-cooled engine offers a maximum output of 2,400 watts and a rated output of 2,000 watts, ensuring that users have ample power for their equipment and tools. The generator is also equipped with a large-capacity fuel tank, allowing for longer run times without the need for frequent refueling.

One of the standout features of the QP-204H is its lightweight and compact design, weighing just 60 pounds. This portability makes it easy to transport to different job sites or recreational areas. Additionally, the generator is equipped with a convenient built-in handle, further enhancing its ease of mobility.

The QP-204H incorporates advanced noise-reduction technology, making it one of the quieter options available on the market. With a noise level of just 58 dBA at a distance of 7 meters, it is ideal for outdoor activities where noise restrictions may apply. This feature ensures that users can enjoy power without disturbing the surrounding environment.

Safety is also a priority with the Multiquip QP-204H. The generator includes a low-oil shutdown system that automatically turns off the engine in case of low oil levels, helping prevent damage and ensuring prolonged operation. This attention to detail helps to give users peace of mind while using the equipment.

The QP-204H offers multiple outlet options, including 120V AC, making it compatible with a variety of devices and appliances. This versatility allows users to utilize the generator for various tasks, from powering power tools on job sites to providing backup power during outages.

In conclusion, the Multiquip QP-204H stands out as a compact, reliable, and efficient portable generator. With its Honda engine, low noise levels, safety features, and multi-outlet capabilities, it is a go-to solution for both professionals and outdoor enthusiasts alike. Whether it’s job site power needs or recreational activities, the QP-204H is designed to deliver dependable performance in any situation.