QP-301TH — TROUBLESHOOTING (ENGINE/PUMP)

TABLE 7. ENGINE TROUBLESHOOTING (Continued)

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

Operation not satisfactory

 

 

 

 

 

 

Governor adjustment improper?

Adjust governor to correct lever.

 

 

 

 

Governor spring defective?

Clean or replace ignition.

Rotational speed fluctuates.

 

 

Fuel flow erratic?

Check fuel line.

 

 

 

 

 

Air taken in through suction

Check suction line.

 

line?

 

 

 

 

Recoil starter not working

Dust in rotating part?

Clean recoil starter assembly.

 

 

properly.

Spring spring failure?

Replace sprial spring.

 

 

 

 

TABLE 8. PUMP TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

Not enough priming water in the housing?

Add water.

 

 

 

 

Engine speed too low?

Increase throttle.

 

 

 

 

Strainner plugged?

Clean strainer.

 

 

 

 

Suction hose damaged?

Replace or repair hose, and clamps

 

 

 

 

Air leak at suction port?

Check that fittings are tight and properly sealed.

Pump does not take on water.

 

 

Pump is located too high above water line?

Move pump closer to water.

 

 

 

 

 

Debris collecting in pump housing?

Clean pump housing.

 

 

 

 

Too much distance between impeller and volute.

Adjust clearance by adding shims or replace impeller.

 

Min. .006" - Max. .020"

 

 

 

 

 

 

Water leaking out weep hole between pump and

Check condition of mechanical seal and gaskets,

 

engine?

between pump end and engine housing.

 

 

 

 

Engine speed too low?

Increase throttle speed.

 

 

 

Pump takes in water, little or no

Suction strainer partially plugged?

Clean strainer.

discharge.

 

 

Impeller/Volute worn?

Adjust clearance by adding shims or replace

 

 

 

impeller/volute

 

 

 

 

Fittings/clamps are not sealed properly?

Tighten, replace or add clamp. (Keep extra seals on

Suction hose leaks at inlet.

pump)

 

 

 

 

Hose diameter is too large?

Use smaller diameter hose or replace hose.

 

 

 

Discharge does not stay on

Pressure too high?

Check pressure, add additional clamp.

 

 

coupling.

Hose kinked or end blocked?

Check hose.

 

 

 

 

 

Impeller jammed or blocked?

Open pump cover and clean dirt and debris from

 

 

inside housing.

Impeller does not turn: pump is

 

 

Impeller and volute binding?

Adjust clearance by removing shim from behind

hard to start.

impeller.

 

 

 

 

 

 

Defective engine?

See Engine Owner's Manual.

 

 

 

QP-301TH TRASH PUMP — PARTS MANUAL— REV. 4 (10/05/05 ) — PAGE 27

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Multiquip manual QP-301TH Troubleshooting ENGINE/PUMP
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QP-301TH specifications

The Multiquip QP-301TH is a state-of-the-art portable generator designed to meet the diverse power needs of contractors, professionals, and outdoor enthusiasts. Known for its durability, performance, and reliability, this model is a popular choice in the generator market, especially among those requiring consistent and efficient power supply.

One of the main features of the QP-301TH is its robust engine. It is powered by a reliable Honda GX390 engine known for its fuel efficiency and low emissions. This engine offers a starting wattage of 3000 watts and a running wattage of 2400 watts, which is ideal for powering tools, small appliances, and equipment. The generator’s design allows for 120-volt output, providing versatility for various applications.

The QP-301TH also boasts a user-friendly control panel that simplifies the operation. It includes clearly labeled outlets, such as two 120V GFCI outlets and one 120V twist-lock outlet, ensuring easy connectivity to electrical devices. The generator is equipped with an electric start system, facilitating effortless ignition, which is particularly helpful in emergency situations or when the generator is needed quickly.

Portability and convenience are key characteristics of the QP-301TH. Weighing approximately 190 pounds, it features built-in wheels and a comfortable handle that make transport and maneuvering straightforward, making it a practical choice for job sites, camping, or tailgating.

Moreover, the generator incorporates several advanced technologies to enhance performance and safety. The low-noise operation, a hallmark of Multiquip generators, ensures a quieter working environment, while the automatic shut-off feature protects the engine from damage in case of low oil levels.

The protective frame provides durability and safeguards the generator against accidental impacts. It is also designed to withstand various weather conditions, making it suitable for outdoor use.

Overall, the Multiquip QP-301TH stands out due to its combination of power, efficiency, and portability. Its user-centric design and advanced safety features make it a desirable choice for those looking for a dependable generator to handle their energy needs. Whether for professional use or recreational activities, the QP-301TH is a reliable power solution.
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