Moteurs Baudouin 12M26 Series, Руководство по эксплуатации и техническому обслуживанию

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Operation & Maintenance Manual for 12M26 Series Gas Engine
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capacity.
4.The natural gas system design shall minimize the number of connection points on the
high-pressure pipeline and guarantee the convenient construction, good sealing, easy-to-check and
high reliability of connection points on the pipeline.
5.The high-pressure pipeline of natural gas system shall be provided with an upstream
over-current protection device to cut off the natural gas line reliably when the ignition switch is
off, the engine is not running or a lot of gas is leaking from the low-pressure pipeline accidentally.
6.Test each connection point of the natural gas system with leakage detecting liquid under the
rated working pressure of the natural gas system, and each connecting point shall be free from any
bubble within 1 minute. Alternatively, test each connection point of the natural gas system with a
gas detector which is not lower than 25ppm in measurement accuracy, and the detector shall not
give an alarm.
7.The pipe of gas valve can’t be assembled under stress. Wire harness can’t connect with water.
8.The power ground wire and the digital/analogue ground wire of the system shall be connected to
the negative electrode of battery separately.
3.4 Preparations before starting the engine
1.Check the coolant level
If the engine has been installed in the vehicle, check the coolant level before each use. When the
coolant is not enough, open the filler cap to add more coolant. When opening the filler cap with
the pressure relief valve and exhaust button, press the exhaust button first if the engine is still hot.
It is prohibited to add a large amount of coolant when the engine is still hot for it will cause
damage to the parts due to sudden temperature change. Start the engine, keep adding coolant until
the liquid level reaches the specified position and maintains stable. And finally close the filler cap.
2.Check the engine oil level
Engine oil level should be maintained between upper and lower scale lines of the dipstick. Add oil
from the oil filler if necessary.
3.Check various engine accessories
◆ Check the connection reliability of various accessories, and exclude abnormal phenomenon.
◆
Check the starting system circuit connection, and see if battery charging is sufficient.
◆
M26 series is equipped with a hand press oil pump. Pre-lubrication is recommended before
starting the engine. The method will be introduced in the following sections
（
4.6.7
）
.
4.Check gas systerm
1) Ensure no electrical equipment, fire and heat source near the gas pipe.
2) Ensure the engine power is closed.
3) Open the gas valve, let the gas by gas pipe line, from the source to the mixer in the pipe
joint measured with gas leak fluid leaks. Measure the gas pipe from the source to the
mixer with gas leak fluid leaks.