Multiquip qp-402h manual QP-402H General Information, Application

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QP-402H — GENERAL INFORMATION

APPLICATION

The QP204H Centrifugal Pump is designed to handle all types of clear water applications. It is ideal for residential use such as dewatering basements and swimming pools. Both the suction and discharge ports on the QP-402H pump use a 4-inch diameter opening, which allows the pump to pump at a rate of approximately 425 gallons/minute (gpm) or 1,615 liters/minute (lpm).

Centrifugal or self priming pumps are designed to purge air from the suction line and create a partial vacuum in the pump body. The reduced atmospheric pressure inside the pump allows water to flow through the suction line and into the pump body. The centrifugal force created by the rotating impeller pressurizes the water and expels it from the pump.

Power Plant

This centrifugal pump is powered by either a Honda GX240K1 (8.0 H.P.) or a Honda GX240U1 (7.1 H.P.) air cooled 4-stroke, single cylinder gasoline engine that incorporates a low "Oil Alert Feature."

Oil Alert Feature

In the event of low oil or no oil, the HONDA GX-240 engine has a built-in oil alarm engine shut-down feature. In the event the oil level is low the engine will automatically shut-down.

Standard Centrifugal Pump

Standard centrifugal pumps provide an economical choice for general purpose dewatering. These types of pumps should only be used in clear water applications (agricultural, industrial, residential) as they have a limited solid handling capability of only 10% by volume.

Suction Lift

This pump is intended to be used for dewatering applications and is capable of suction lifts up to 25 feet at sea level. For optimal suction lift performance keep the suction hose or line as short as possible. In general, always place the pump as close to the water as possible.

Pump Support

The pump should always be placed on solid stationary ground, on a level position.

NEVER place the pump on soft soil. The suction hose or pipe connection should always be checked for tightness and leaks. A small suction leak in the hose or fittings could prevent the pump from priming.

Elevation

Higher elevations will effect the performance of the pump. Due to less atmospheric pressure at higher altitudes, pumps DO NOT have the priming ability that they have at sea level. This is due to the “thinner air” or lack of oxygen at higher altitudes.

A general rule of thumb is that for every 1,000 feet of elevation above sea level a pump will lose one foot of priming ability.

For example, in Flagstaff, Arizona where the elevation is approximately 7,000 feet, the pump would have a suction lift of only 18 feet rather than the 25 feet at sea level. Table 3 shows suction lift at various elevations.

Table 3. Suction Lift at Various Elevations

Altitude

 

 

Suction Lift in Feet (Meters)

 

 

Feet (Meters)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sea Level

10.0 (3.048)

15.0

(4.572)

20.0 (6.096)

25.0 (7.620)

 

 

 

 

 

 

 

 

2,000 (610)

8.80

(2.680)

13.2

(4.023)

17.6

(5.364)

22.0 (6.705)

 

 

 

 

 

 

 

 

 

4,000 (1,219)

7.80

(2.377)

11.7

(3.566)

15.6

(4.754)

19.5

(5.943)

 

 

 

 

 

 

 

 

 

6,000 (1,829)

6.90

(2.103)

10.4

(3.169)

13.8

(4.206)

17.3

(5.273)

 

 

 

 

 

 

 

 

8,000 (2,438)

6.20

(1.889)

9.30 (2.834)

12.4

(3.779)

15.5

(4.724)

 

 

 

 

 

 

 

 

10,000 (3,048)

5.70

(1.737)

8.60 (2.621)

11.4

(3.474)

14.3

(4.358)

 

 

 

 

 

 

 

 

 

Table 4 shows percentage drops in performance as elevation increases.

Table 4. Performance Loss at Various

Elevations

Altitude

Discharge Flow

Discharge Head

Feet (Meters

 

 

 

 

 

Sea Level

100%

100%

 

 

 

2,000 (610)

97%

95%

 

 

 

4,000 (1,219)

95%

91%

 

 

 

6,000 (1,829)

93%

87%

 

 

 

8,000 (2,438)

91%

83%

 

 

 

10,000 (3,048)

88%

78%

 

 

 

PAGE 12 — QP-402H CENTRIFUGAL PUMP — OPERATION AND PARTS MANUAL — REV. #1 (04/02/08)

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Contents Model QP-402H Centrifugal Pump Proposition 65WARNING Page Table of Contents Parts Ordering Procedures Ordering parts has never been easierQP-402H Safety Message Alert Symbols For Your Safety and the Safety of OthersQP-402H Safety Message Alert Symbols Always wear approved eye and hearing protectionQP-402H Rules for Safe Operation Maintenance Safety QP-402H Rules for Safe OperationSpecifications Pump QP-402H SPECIFICATIONS/DIMENSIONS PumpSpecifications Engines QP-402H SPECIFICATIONS/DIMENSIONS EngineQP-402H General Information ApplicationQP-402H Pump Components QP-402H Refueling Plastic TRUCK-BED LinerQP-402H Basic Engine Initial ServicingQP-402H PRE-INSPECTION Engine Pre-Inspection EngineQP-402H PRE-SETUP Pump QP-402H Initial START-UP Engine QP-402H Initial START-UP Engine Normal ShutdownQP-402H Maintenance Pump Pump Vacuum TestQP-402H Maintenance Pump QP-402H Maintenance Engine Engine Maintenance ScheduleQP-402H Maintenance Engine DailyQP-402H Preparation for Long -TERM Storage Pump StoragePage QP-402H Troubleshooting Engine Engine TroubleshootingQP-402H Troubleshooting ENGINE/PUMP Engine TroubleshootingSample Parts List QP-402H Explanation of Code in Remarks ColumnQP-402H Suggested Spare Parts QP-402H Pump Assy Pump AssyCasing Suction CoverVolute Casing BaseHonda GX240K1PMT2/GX240U1PMT2 ENG. AIR Cleaner Dual Assy AIR Cleaner Dual AssyGROMMET, AIR Cleaner COLLAR, AIR CleanerCollar B, AIR Cleaner GASKET, ElbowHonda GX240K1PMT2/GX240U1PMT2 ENG. Camshaft Assy Camshaft AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Camshaft Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Carburetor Assy Carburetor AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Carburetor Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Carburetor Assy PLATE, Lever Setting SPACER, CarburetorGASKET, Carburetor GASKET, InsulatorHonda GX240K1PMT2/GX240U1PMT2 ENG. Control Assy Control AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Control Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Crankcase CVR. Assy Crankcase Cover AssyWEIGHT, Governor HOLDER, Governor WeightPIN, Governor Weight GASKET, Case CoverHonda GX240K1PMT2/GX240U1PMT2 ENG. Crankshaft Assy Crankshaft AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Crankshaft Assy 90741ZE2000Honda GX240K1PMT2/GX240U1PMT2 ENG. Cylinder Barrel Assy Cylinder Barrel AssyNUT, Flange 10MM RING, 14MM NOKPIN, Lock 10MM SHAFT, Governor ARMHonda GX240K1PMT2/GX240U1PMT2 ENG. Cylinder Head Assy Cylinder Head AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Cylinder Head Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. FAN Cover Assy FAN Cover AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. FAN Cover Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Flywheel Assy Flywheel AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Flywheel Assy FLYWHEEL, CompleteFAN, Cooling NUT, Special 16MMHonda GX240K1PMT2/GX240U1PMT2 ENG. Fueltank Assy Fuel Tank AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Fueltank Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Ignition Coil Assy Ignition Coil AssyWIRE, Stop Switch 370 MM Honda GX240K1PMT2/GX240U1PMT2 ENG. Ignition Coil AssyCoil ASSY., Ignition GROMMET, CordMuffler Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Muffler Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Piston Assy Piston AssyROD ASSY., Connecting BOLT, Connecting RODRing SET, Piston STD Ring SET, PistonHonda GX240K1PMT2/GX240U1PMT2 ENG. Recoil Starter Assy Recoil Starter AssyHonda GX240K1PMT2/GX240U1PMT2 ENG. Recoil Starter Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Gasket KIT Assy Honda GX240K1PMT2/GX240U1PMT2 ENG. Gasket KIT Assy 061A1ZE2040Honda GX240K1PMT2/GX240U1PMT2 ENG. Labels Assy Labels AssyMARK, Throttle Indication MARK, Choke OrangeMARK, Choke Gray LABEL, CautionTerms and Conditions of Sale Parts Freight PolicyPage Heres HOW to GET Help

qp-402h specifications

The Multiquip QP-402H is a powerful, versatile piece of construction equipment designed for a range of applications, particularly in the construction and operational sectors. Known for its durability and efficiency, the QP-402H is a part of Multiquip’s extensive portfolio of equipment that adheres to the high standards of reliability and performance.

One of the standout features of the QP-402H is its robust Honda GX160 engine, which delivers superior power and performance. The engine is designed for optimal fuel efficiency, allowing operators to maximize their productivity while minimizing operational costs. This machine is engineered to handle a wide variety of tasks, from producing high-quality concrete to powering various construction tools, making it an invaluable asset on job sites.

In terms of design, the QP-402H features a heavy-duty construction, which ensures its longevity even under strenuous working conditions. The unit is equipped with an advanced compressor system that provides consistent air supply for up to four pneumatic tools simultaneously. This multi-tool capability significantly enhances productivity on the job site, allowing crews to work more efficiently without having to wait for equipment to become available.

The QP-402H incorporates sophisticated technologies to ensure user-friendly operation. Its intuitive controls are designed to be easily accessible, enabling operators to quickly adjust settings and manage functions with minimal effort. Additionally, the compact design of the unit allows for easy transportation and maneuverability, making it a suitable choice for both large scale and tight-space projects.

Another notable characteristic of the QP-402H is its low noise level, which is increasingly important in urban environments where noise regulations are strict. This quiet operation ensures that tasks can be completed with minimal disruption, promoting better relations with surrounding communities.

Safety is a primary consideration in the design of the Multiquip QP-402H. The machine is equipped with various safety features, including a protective cage for the engine and secure fastenings for operational stability. These features contribute to a safer working environment for operators and personnel on-site.

In conclusion, the Multiquip QP-402H stands out as a reliable, efficient, and versatile solution in the realm of construction equipment. Its powerful engine, user-friendly technologies, robust construction, and safety features make it an ideal choice for professionals who require high-performance equipment that can handle varied demands in challenging environments.