EM-70 PLASTER/MORTAR 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 Engine, Mixer and Electric Motor Troubleshooting (Tables 11, 12 and 13) information shown below and on the proceeding pages. If the problem cannot be remedied, please leave the unit just as it is and consult or company's service department.

TABLE 11. ENGINE TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

Inspect carburetor to see if fuel

Check fuel line

 

is reaching it?

 

 

 

 

 

 

No Fuel?

Add Fuel

 

 

 

 

Water in fuel tank?

Flush or replace fuel tank.

 

 

 

 

Fuel filter clogged?

Replace fuel filter

 

 

 

 

Stuck carburetor?

Check float mechanism.

Poor starting

 

 

Spark plug is red?

Spark plug is fouled. Check tranistor ignition unit.

 

 

 

 

Spark plug is blue-white?

Insufficient compression, injected air leaking. Carburetor jets are

 

clogged (overflow).

 

 

 

 

 

 

No spark present at tip of spark

Tranistor ignition unit broken, high voltage cord cracked or broken.

 

plug?

Start/Stop switch broken. Replace spark plug if fouled.

 

 

 

 

No oil?

Add oil as required.

 

 

 

 

Oil pressure alarm lamp blinks

Check Automatic shutdown circuit "oil sensor".

 

upon starting?

 

 

 

 

 

 

Engine will not turn over?

Replace cylinder and piston and if necessary axel joint.

 

 

 

 

Cylinder head connecting bolts

Tighten cylinder head connecting bolts.

 

loose?

 

 

 

 

 

Insufficient power output "no

Cylinder head gasket damaged?

Replace cylinder head gasket.

compression"

 

 

Malfunction of valve seat?

Re-seat valves.

 

 

 

 

 

Spark plug is loose?

Replace spark plug.

 

 

 

 

Worn piston rings?

Replace piston rings.

 

 

 

 

Malfunction in air-cleaner

Clean or replace air filter.

 

system, air filter clogged?

 

 

 

 

 

Insufficient power output

Air leaking in from interface

Tighten bolts between carburetor and cylinder head. Replace

between carburetor and cylinder

cylinder head gasket.

"compression"

head?

 

 

 

 

 

 

Clean or replace fuel filter.

 

Malfunction in fuel system?

Clean or replace carburetor.

 

 

Check carburetor float.

 

 

 

EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 35

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Multiquip EM-70S, EM-70P manual EM-70 PLASTER/MORTAR Mixer -TROUBLESHOOTING Engine, Engine Troubleshooting

EM-70S, EM-70P specifications

The Multiquip EM-70P and EM-70S are two robust and versatile electric generators designed to provide reliable power for various applications, ranging from construction sites to special events. Both models are renowned for their performance, durability, and efficiency, catering to the needs of contractors, event organizers, and outdoor enthusiasts alike.

One of the standout features of the EM-70P and EM-70S is their powerful engine. The EM-70P is equipped with a 7,000-watt gasoline engine, while the EM-70S comes with a 7,000-watt propane engine. This dual-fuel capability of the EM-70S not only enhances flexibility but also promotes cleaner and more efficient energy consumption. Both generators feature a heavy-duty steel frame that ensures maximum durability and protection against the rigors of job sites.

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Another notable characteristic of the EM-70P and EM-70S is their portability. Both models come with sturdy wheels and a foldable handle, making them easy to transport on job sites or during events. Their compact size does not compromise power output, as they can easily handle the demands of multiple tools and devices simultaneously.

Safety is also prioritized in the design of these generators. They feature a low-oil shutdown system which automatically turns off the engine when oil levels are critically low, preventing potential damage. Furthermore, the generators are designed to withstand harsh weather conditions, providing peace of mind to users who require dependable power in any environment.

In summary, the Multiquip EM-70P and EM-70S generators combine powerful performance, noise-reduction technology, user-friendly controls, and safety features. Whether you need a reliable power source for construction, outdoor events, or emergency backup, these generators present an ideal solution that meets diverse power needs efficiently and effectively.