MVC-90H PLATE COMPACTOR —TROUBLESHOOTING (ENGINE)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the diagnosis based on the Engine Troubleshooting (Table 8) information shown below and on the following page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.

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 26 — MVC-90H PLATE COMPACTOR — OPERATION AND PARTS MANUAL — REV. #3 (01/10/11)

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Multiquip manual MVC-90H Plate Compactor -TROUBLESHOOTING Engine, Engine Troubleshooting

MVC-90H specifications

The Multiquip MVC-90H is a powerful, efficient, and versatile compactor that stands out in the construction and landscaping industries. This machine is designed to tackle various soil types, making it an excellent choice for compacting asphalt, gravel, and other materials in a range of applications.

One of the most notable features of the MVC-90H is its robust Honda engine. This reliable engine delivers unmatched performance, ensuring that the compactor operates at optimal levels even in demanding conditions. The combustion engine not only provides abundant power but also ensures low emissions, aligning with contemporary environmental standards.

The MVC-90H utilizes a unique centrifugal clutch cutting mechanism that allows smooth operation and consistent performance. This technology ensures that the vibratory plate remains in constant contact with the ground, maximizing efficiency during the compaction process. The heavy-duty design of the machine contributes to its durability and reliability on job sites, ensuring it can withstand the rigors of everyday use.

Another significant characteristic of the MVC-90H is its user-friendly design. It features adjustable handles that can be set to various heights to accommodate operators of different sizes, providing comfort and reducing operator fatigue. Additionally, the compactor’s compact size and lightweight construction make it easy to transport to and from job sites without the need for heavy-duty equipment.

The machine is also equipped with a high-frequency vibration system that enhances the effectiveness of compaction. This high-frequency technology allows for better penetration of soil, resulting in a denser and more stable ground. It is particularly useful in areas where precision in compaction is critical, such as in trench backfilling or base preparation for paving.

Furthermore, the MVC-90H is designed with an integrated water tank system that helps prevent asphalt from sticking to the plate during operation. This feature increases operational efficiency and reduces downtime, allowing operators to complete their tasks more swiftly.

In summary, the Multiquip MVC-90H is a well-rounded compactor that combines powerful performance with user-friendly features. Its robust Honda engine, advanced compaction technologies, and practical design make it an ideal choice for professionals seeking reliability, efficiency, and ease of use on their projects. Whether for commercial construction or landscaping tasks, the MVC-90H proves to be a valuable asset in any contractor's toolkit.