Multiquip qp-402h manual QP-402H Maintenance Pump, Pump Vacuum Test

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QP-402H — 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 17) 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-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.