Moteurs Baudouin 12M26 Series, Operation & Maintenance Manual

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Operation & Maintenance Manual for 12M26 Series Gas Engine
32
Chapter 4 12M26 Series Gas Generators Maintenance
4.1 Fuel, Lubricating Oil ,Coolant and Auxiliary materials
4.1.1 Fuel
NG: Pipeline natural gas with a heating value of 36MJ/m³ (or above.) ， CH4 ＞ 80%.
Gas quality requirements(measure within 1 meter of engine gas inlet)
Into the engine intake pressure is
（
3~5
）
kPa(after the pressure regulator),customers can choose
their own regulator.
Pressure change rate ≤1kPa/min;
H
2
S≤20mg/Nm³;
Impurity particle size≤5μm;
Impurity content≤30mg/Nm³;
Ammonia≤20mg/m³;
Tar content≤50mg/m³;
Moisture content≤20mg/Nm³.
If the fuel is not used as specified,there will be some loss of engine power,and emissions may
not meet the non-road
Ⅲ
stage regulations. Higher heating value can not improve the
power of the engine
，
but the lower heating value will lead to loss of the engines’s power. If
the gas with the heating value is under 20.5MJ/m³ and the content of CH
4
is under 60% will
cause the engine can not work.
4.1.2 Gas Generator Lubricating oil
Gas Generator Lubricating oil capacity :113L,The actual filling volume should base on the
markings of oil dipstick. (Different models of its oil slightly different)
Selection of Lubricants: in order to make your gas generator safe and reliable operation, grade
CH-4 (or above) lubricating oil shall be used. (Weichai special engine oil is recommended.The
first oil change must use Weichai special Oil).Specific standards Refer to Table 4-1.
Table 4-1 Weichai power special oil selection specifications
Variety Packaging specifications Application of model type
Gas Engine
Lubricating oi
4L ， 18L ， 170kg
Gas Engine
Notice: 1) Check the oil level in the oil pan before starting the gas engine.