Operating Requirement And
Procedures of Deutz Diesel Generator Engines
Rules on the working fluid
and the auxiliary material
Oil
Quality class: Oil is classified
according to its quality and characteristics, usually on the basis of API . Oil
which is allowed to use
API class: CC.C D.C D - n .CE
CB class:CC.C D.C D - H.CE
CC class oil should be selected
for non - supercharged diesel engines while the C D class oil for the supercharged ones. It is allowable for the low - quality oil to
be replaced with high - quality oil.
Viscosity
The viscosity of the oil is , to
a great extent, determined by the temperature. Refer to the right figure for
appropriate oil viscosity class( SAE class) .
Please refer to the right figure
for the oil viscosity and select the most appropriate oil. The situation where
the environment temperature is close to the temperature limit will have some
influence on the cold start performance but not necessarily damage the diesel
engine.
Do not exceed the temperature
limit for long time so as to keep the abrasion within a minimum extent.
Multi - class oil could be used
so that it wont he necessary to change the oil during the seasonal alternation period.
The fuel consumption rate could
be lowered by using multi - class oil (light oil especially) It is recommended to use 15W/40
011 when the environment temperature is ahove
- 150C and use SW/30 when it is
below -150C.
Shell C D/15w - 40 lubricating
oil for Weichai Power only which is prepared of imported high -
quality oil and choice additive
is recommended. It is sold by all service stations of Weichai for unified
national price.
Note:Forbidden to inspect the Lube oil level daring engine working and mix different lubricating oil.
Fuel
This engine makes use of light
diesel as the fuel.
Quality grade
Sulfur content of specified brand
fuel is not allowed to exceed l%. The fuel with following brand numbers is
permissible:
- GB252 0# -10#
-20# -35# -50#
- DIN 51601
- NATO -CODES F54.F57.F76
- BS 2869:A1.A2 ( pay attention
to the.sulfur content of the A2)
- ASTM D975 - 81:1 - D.2 - D
-W-F-800C:DF-A.DF-l.DF-2
O# fuel should be applied when
the ambient temperature is higher than 50C ( CB252 - 94 )
The waxiness produced by the
diesel under low temperature will lead to the low fluidity of the diesel and
the blockage of the fuel system and eventually result in the operating failure
of the diesel engine.
So please use winter diesel when
the environment temperature is blow 0℃.
When the temperature is between -
15'C and - 20r:, the diesel engine could employ a mixture of diesel and
kerosene to meet the low temperature requirement. Refer to the right figure for
the mixing ratio.
In the case that the summer
diesel has to be used at a temperature of blow 0℃ , some
kerosene which do not exceed 60% could be added, as is illustrated in the
figure blow.
Notice: the mixing process should
be proceeded in the fuel tank. Fill in some diesel before adding enough
kerosene.
Cooling fluid
The cooling water of the diesel
engine must be soft water and anticorrosive agent and anti - freezing agent
must be added.
Anti - freezing fluid
Please refer to the anti -
freezing fluid instruction for the mixing ratio of the longacting antifreezing
fluid.
Long-acting anti - freezing fluid
Glycol content % 33 50 56
Density (15.6℃) 1.05 1.074 1.082
Boiling point ℃ 104.5±1 108.5±1 110.0±1
Freezing point ℃ -18±1 -36±1 -45±1
Min. Temperature appropriate ℃ -10 -26 -35
The concentration of the anti -
freezing agent should be checked once every 1000 hours. But there should be at
least one checkout in every season. The anti - freezing agent should be hanged
every two years so as to avoid corrosive damage.
Anticorrosive agent
Anticorrosive agent can be added
to the cooling water when the environment temperature is above 5℃ ( in summer
or autumn or m some areas with relatively high temperature) .
Cooling water
The composition of the cooling
water are analyzed as following:
Water quality Min. Max.
PH value 6.5 8.5 Only the water with the compositions of
specified content can be added with addition agent
The content of chloride ion
(mg/dm³) - 100
Content of carbonate (mg/dm³) - 100
Content of overall anion (mg/dm³) - 150
Degree of hardness when using the
anti-freezing agent 3 12
Degree of hardness of the
carbonate 3 -
Degree of hardness when using
chemical anticorrosive agent Notice
the instruction of the supplier 0 10
Inner zinc - plated pipe is not
appropriate for containing chemical anti-corrosive agent so it cannot be used as
cooling water pipe.
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