TROUBLESHOOTING

 

 

 

 

 

 

 

TABLE 8. ENGINE TROUBLESHOOTING

 

 

 

 

 

 

 

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

 

 

 

Difficult to start

 

 

 

 

 

 

 

 

 

 

Ignition plug being bridge?

Check ignition system.

 

 

 

 

 

 

 

Fuel is available but spark plug

Carbon deposit at ignition?

Clean or replace ignition.

 

 

 

 

 

 

will not ignite. (Power available

Short circuit due to defective

Replace insulators.

 

 

at high tension cable).

 

 

insulators?

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper spark gap?

Set spark plug gap to the correct gap.

 

 

 

 

 

 

 

Fuel is available but spark plug

Short circuit at stop switch?

Check stop switch circuit. Replace stop switch if defective.

 

 

will not ignite. (Power NOT

 

 

 

 

 

 

 

 

available at high tension cable).

Ignition coil defective?

Replace ignition coil.

 

 

 

 

 

 

 

 

Muffler clogged with carbon

Clean or replace muffler.

 

 

 

deposits?

 

 

 

 

 

 

 

 

 

Mixed fuel quality is

Check fuel to oil mixture.

 

 

Fuel is available and spark plug

inadequate?

 

 

 

ignites (compression normal).

 

 

 

 

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

 

 

 

 

 

 

dust)?

 

 

 

 

 

 

 

 

 

Air Cleaner clogged?

Clean or replace air cleaner.

 

 

 

 

 

 

 

 

Defective cylinder head gasket?

Tighten cylinder head bolts or replace head gasket.

 

 

Fuel is available and spark plug

 

 

 

 

Cylinder worn?

Replace cylinder.

 

 

ignites (compression low ).

 

 

 

 

 

 

 

Spark plug loose?

Tighen spark plug.

 

 

 

 

 

 

 

Operation not satisfactory

 

 

 

 

 

 

 

 

 

 

Air cleaner clogged?

Clean or replace air cleaner.

 

 

 

 

 

 

 

Not enough power available

Air in fuel line?

Bleed (remove air) from fuel line.

 

 

 

 

 

 

(compression normal, no miss-

Fuel level in carbureator float

 

 

 

firing).

Adjust carbureator float

 

 

chamber improper?

 

 

 

 

 

 

 

 

 

 

 

 

Carbon deposits in cylinder?

Clean or replace cylinder

 

 

 

 

 

 

 

 

Ignition coil defective?

Flush fuel sytem and replace with fresh fuel.

 

 

Not enough power available

 

 

 

 

Ignition plug often shorts?

Replace ignition wires, clean ignition.

 

 

(compression normal, miss-

 

 

 

 

 

 

firing).

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

 

 

 

 

 

 

dust)?

 

 

 

 

 

 

 

 

 

Excessive carbon depostion in

Clean or replace crankcase.

 

 

 

combustion chamber?

 

 

 

 

 

 

 

 

Engine overheats.

Exhaust or muffler clogged with

Clean or replace muffler.

 

 

 

carbon.

 

 

 

 

 

 

 

 

 

Spark plug heat value incorrect?

Replace spark plug with correct type spark plug.

 

 

 

 

 

 

 

 

 

 

 

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

Page 26 Page 28
Page 27
Image 27
Multiquip MQD2H manual Engine Troubleshooting
Page 26 Page 28

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.
Top Page Image Contents