TROUBLESHOOTING

 

 

 

 

 

 

 

 

 

 

TABLE 8. 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 9. PUMP TROUBLESHOOTING

 

 

 

 

 

 

 

SYMPTOM

 

POSSIBLE PROBLEM

 

SOLUTION

 

 

 

 

 

 

Not enough priming water in the housing?

Add water to suction chamber.

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

Water leaking out weep hole between pump and

Check condition of mechanical seal and gaskets,

 

 

engine?

 

between pump end and engine housing.

 

 

 

 

 

 

 

 

 

Valves not seated correctly?

 

Check that valves are seated correctly. Pour water in

 

 

 

in suction chamber to help seal valves.

 

 

 

 

 

 

 

 

 

 

 

 

 

Pump does not prime correctly?

 

Check diaphragm for breaks or leaks.

 

 

 

 

 

 

Pump takes in water, little or no

Engine speed too low?

 

Increase throttle speed.

 

 

 

 

 

 

 

discharge.

Suction strainer partially plugged?

 

Clean strainer.

 

 

 

 

 

 

 

 

 

 

Suction hose leaks at inlet.

 

Teflon Tape/Pipe Dope not used?

 

Apply teflon tape or pipe dope to NPT fittings.

 

 

 

 

 

 

 

Hose diameter is too large?

 

Use same diameter on suction/discharge ports.

 

 

 

 

 

 

 

 

 

Discharge hose does not stay

Pressure too high?

 

Check pressure, add additional clamp.

 

 

 

 

 

 

 

on coupling.

Hose kinked or end blocked?

 

Check hose.

 

 

 

 

 

 

 

 

 

 

PAGE 28 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11)

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Image 28
Multiquip MQD2H manual Engine Troubleshooting
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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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