MC-92P/S CONCRETE MIXER — 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 Troubleshooting (Tables 10 and 11) information shown below and on the next 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 10. 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?

 

Fuel is available and spark plug

 

 

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

ignites (compression normal).

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?

 

 

 

 

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.

 

 

 

PAGE 30 —MC-92P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #7 (09/13/07)

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Multiquip MC-92S manual MC-92P/S Concrete Mixer Troubleshooting Engine, Engine Troubleshooting

MC-92P, MC-92S specifications

The Multiquip MC-92S and MC-92P are high-performance concrete mixers designed for professional use in construction and masonry applications. These models offer a blend of power, durability, and user-friendly features, catering to the demands of contractors and construction workers who require reliable equipment for mixing concrete, mortar, and other materials.

The MC-92S is equipped with a robust 9.0 horsepower Honda gasoline engine that provides ample power for even the most demanding mixing tasks. This model features a 9 cubic feet capacity drum, allowing for larger batches of mixed material. The MC-92S is designed with a heavy-duty steel frame that enhances its durability and stability during operation. The drum is constructed with abrasion-resistant steel, ensuring longevity and minimizing wear over time.

In contrast, the MC-92P utilizes a powerful 9.0-horsepower propane engine, making it an excellent choice for users who prefer cleaner fuel options. This model retains many of the same design features as the MC-92S, including the enhanced drum capacity and rugged frame. The propane engine not only provides a quieter operation but also reduces emissions, making it a more environmentally friendly option without compromising performance.

One of the standout technologies in both models is the innovative mixing mechanism. The unique design of the mixing blades ensures efficient and consistent blending of materials, reducing the time required for mixing and enhancing the quality of the final product. Additionally, the MC-92 series features a manual dump system, which allows operators to easily and accurately discharge mixed material from the drum.

Safety is a primary concern in construction, and Multiquip has incorporated several safety features into these mixers. The control panel is designed for easy access and includes safety switches that prevent accidental start-up. The sturdy base and low center of gravity provide stability during operation, reducing the risk of tipping.

In summary, the Multiquip MC-92S and MC-92P concrete mixers are exceptional tools for professionals needing reliable, efficient, and versatile mixing equipment. With their powerful engines, capacity, durability, and innovative mixing technologies, they stand out in the competitive market of concrete mixers, ensuring that construction projects run smoothly and efficiently.