MVC-70E/EW — TROUBLESHOOTING (ENGINE)

TABLE 8. ENGINE TROUBLESHOOTING

SYMPTOM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

Spark plug bridging?

Check gap, insulation or replace

 

spark plug.

 

 

 

 

 

Difficult to start, "fuel is available, but no

Carbon deposit on spark plug?

Clean or replace spark plug.

SPARK at spark plug".

Short circuit due to deficient spark plug

Check spark plug insulation,

 

 

insulation?

replace if worn.

 

 

 

 

Improper spark plug gap?

Set to proper gap.

 

 

 

 

ON/OFF switch is shorted?

Check switch wiring, replace

 

switch.

 

 

 

 

 

 

Ignition coil defective?

Replace ignition coil.

 

 

 

Difficult to start, "fuel is available, and

Improper spark gap, points dirtry?

Set correct spark gap and clean

points.

SPARK is present at the spark plug".

 

 

 

 

Condenser insulation worn or short

Replace condenser.

 

circuiting?

 

 

 

 

 

 

Spark plug wire broken or short circuiting?

Replace defective spark plug

 

wiring.

 

 

 

 

 

 

Wrong fuel type?

Flush fuel system, and replace

 

with correct type of fuel.

 

 

Difficult to start, "fuel is available, spark

 

 

Water or dust in fuel system?

Flush fuel system.

is present and compression is normal"

 

 

 

 

Air cleaner dirty?

Clean or replace air cleaner.

 

 

 

 

Suction/exhaust valve stuck or protruded?

Re-seat valves.

 

 

 

 

Piston ring and/or cylinder worn?

Replace piston rings and or

 

piston.

Difficult to start, "fuel is available, spark

 

 

 

 

 

is present and compression is low"

Cylinder head and/or spark plug not

Torque cylinder head bolts and

 

tightened properly?

spark plug.

 

 

 

 

Head gasket and/or spark plug gasket

Replace head and spark plug

 

damaged?

gaskets.

 

 

 

 

Fuel not available in fuel tank?

Fill with correct type of fuel.

 

 

 

 

Fuel cock does not open properly?

Apply lubricant to loosen fuel

 

cock lever, replace if necessary.

 

 

No fuel present at carburetor.

 

 

Fuel filter clogged?

Replace fuel filter.

 

 

 

 

 

Fuel tank cap breather hole clogged?

Clean or replace fuel tank cap.

 

 

 

 

Air in fuel line?

Bleed fuel line.

 

 

 

PAGE 24 — MVC-70E/EW PLATE COMPACTOR — OPERATION & PARTS MANUAL — REV. #0 (01/25/06)

Page 24
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Multiquip manual MVC-70E/EW Troubleshooting Engine, Engine Troubleshooting

MVC-70E/EW specifications

The Multiquip MVC-70E/EW is a high-performance vibratory compactor designed for efficient soil and asphalt compaction applications. This machine comes equipped with advanced features and technologies that enhance its functionality, delivering outstanding results in various construction and civil engineering projects.

One of the standout features of the MVC-70E/EW is its powerful engine, which provides exceptional torque and horsepower. This ensures that the machine can handle challenging compaction tasks, such as compacting cohesive soils, gravel, and asphalt. The fuel-efficient engine is not only reliable but also designed to minimize emissions, making the MVC-70E/EW environmentally friendly.

The compactor's design focuses on operator comfort and ease of use. It includes an ergonomic handle that can be adjusted to different heights, allowing users of various statures to operate the machine comfortably. The padded grip helps reduce vibration transmitted to the operator, enhancing overall comfort during extended operation periods.

Another key characteristic of the MVC-70E/EW is its innovative vibration system. This system utilizes advanced technology to provide uniform compaction, ensuring that the surface is adequately compressed without causing damage. The machine is capable of achieving deep effective compaction depths, making it suitable for a range of applications, from compacting base layers to finishing surfaces.

The MVC-70E/EW also features a large, heavy-duty plate that enhances stability and performance. The plate’s dimensions allow for efficient coverage and quick work progress, making the compactor ideal for both small and large projects. Additionally, the model's durable construction means it can withstand the rigors of tough job sites, ensuring longevity and reduced maintenance needs.

For versatility, the MVC-70E/EW is equipped with a water sprinkler system, which helps to keep the plate moist during asphalt compaction. This feature minimizes asphalt stickiness and provides a smoother surface finish. The unit also boasts a low center of gravity, maintaining stability even when operating on uneven terrain.

In summary, the Multiquip MVC-70E/EW is a robust, versatile vibratory compactor that combines performance, comfort, and durability. With its powerful engine, innovative vibration technology, ergonomic design, and enhanced safety features, it stands out as an excellent choice for professionals seeking reliable compaction equipment. Whether for road construction, landscaping, or utility work, this compactor is built to meet the demands of the job efficiently.