Nowadays, diesel generator anti - freeze solution is widely used, inadequate understanding of the
characteristics, requirement and method in its use will bring some trouble to
your vehicle, such as starting difficulty, leakage at pipe fittings, hose
rupture, watering difficulty, radiator corrosion, cylinder sleeve cavitations,
etc.
(1)Select
anti - freeze solution of different freezing points according to the ambient
temperature.
Its freezing
point should be approximately 10℃ lower than the lowest temperature recorded in the regions
history.
2)Select
anti - freeze solution according to the number of vehicles and vehicle -
concentration.
For those
units or departments with quite a number of vehicles that .are more often used
in one region, small - package anti - freeze mother liquid can he selected,
which is stable in performance and convenient for l' transportation and
storage. It can also be modulated in many flexible ways
according to
the use condition, achieving conservation and practicality. K there is only
limited number of vehicles and they are used in different regions, you can
choose the direct - use type anti - freeze solution.
3)Use high
quality anti - freeze solution, never use inferior quality ones.
High quality
anti - freeze solution is usually certified as passing the inspection by the
State designated inspection stations. From the exterior appearance, it should
be crystal clear, not turbid and have no foreign material or or irritating
smell The external packing should bear detailed information on the manufacturer
name, product instruction and explicit indications. Inferior quality anti -
freeze solution will not be able to be anti -freeze and anti - boiling; and
quite on the contrary, it will accelerate corrosion to the cooling system.
4)Use anti -
freeze solution that matches the rubber sealing component/pipe
Anti -
freeze solution should have no side effect on the rubber sealing component
part, such as swelling or encroachment.
How to use
anti -freeze solution correctly
1)Wash the
cooling system thoroughly before filling anti - freeze solution.
If you fill
the anti - freeze solution without a thorough cleaning, the anti - rust
performance will he weakened. Following these steps to wash it:
①Start engine, when the coolant gets to the thermostat threshold
temperature, stop the engine, then drain the coolant.
② Use 10% caustic soda solution as coolant and make the engine run
5 minutes at high speed, let it drench for one hour, then drain it.
③Add soft water, make the engine running at high speed for 10
minutes, and then drain the water. Repeat this step for several times till
there is no pollutant out of the drained water.
2)Before
filling anti - freeze solution, don’t forget to check if the cooling system has
any seeping points. Remove any seeping then add anti - freeze solution.
Ethanediol’s surface tension is low; it may easily seep through the crevices.
Therefore, before you change anti - freeze solution, you should first check and
fasten the branches and fittings of cooling system,to prevent any leakage.
3)Anti -
freeze solution s expansibility is greater than that of water, if there is no
expansion tank, you should only fill up the anti - freezing liquid to 95% of
the cooling systems volume.
4)Prohibit
direct filling up anti - freeze mother liquid ( condensed type) , prohibit modulating
anti - freezing liquid with hard water.
5)Regularly
check anti - freeze solution in use.
After a
period of use, the anti - freeze solution will become deficient, here, first
check the density of the anti - freeze solution. If the density doesn’t
increase, then this deficiency should be caused by seeping, you have to add
anti - freeze solution of the same brand; if the density decreases, you should
add condensed anti - freeze solution of the same brand; if the density
decreases, this should be caused by water vaporization, you should add the
distilled water or the demineralization water. After adding distilled water or
condensed liquid, you should stir it evenly then check the anti - freeze
solutions density, till you get the density corresponding to the freezing point
you need. Never add common water ( such
as river, lake, pond, well or tap water) , the foreign material in it will
consume certain part of aseptic.
6)Don’t put
off anti - freeze solutions of different brands; this will damage their
respective anti - corrosion capacity.
7)The life
cycle for long - term anti - freeze solution s tenure of use is usually 1-2
years, you should change it when it is overdue.
To reduce any waste, when it is out of its life cycle you may first
check the PH value before changing. If
the PH value is higher than 5. 5 , you may continue using it; if PH value is
lower than 5.5, you should change it timely, or it will hasten the corrosion of
the cooling system. When the PH value is lower than 5, you may add prolonging
agent into the freezing liquid to extend the life of anti - freeze solution by
one year.
8)Don’t suck
ethanediol into your mouth because it is poisonous and has a damaging effect on
the liver, wash after it contacted your skin. Sodium nitrite can cause cancer,
don’t pour the waste liquid around, which will pollute the environment.
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