Operation Manual of WEICHAI GENSET
radiator. The general method to
remove these tiny foreign matters is to
spray low-pressure steam flow in the
radiator.
9) Start the engine to check whether
there is oil leakage.
Stubborn foreign matters can be
removed by using low-pressure hot
water added with detergent. If some
deposits cannot be removed by the
method above, it is necessary to
remove the radiator, immerse it in hot
alkali de-oiling solution for about 20
min, and then use a hose to rinse it
with hot water.
Cooling system
2. Internal cleaning of radiator
If hard water is mixed in the added
The design and structure of radiator
water due to leakage or other reasons,
equipped with the set can ensure
or the set runs without anti-rust agent,
trouble-free operation all year round in
the whole system will be blocked by
industrial environment. Various
rust scale.
maintenance rules can ensure trouble-
free operation.
De-rusting steps of radiator are as
follows:
The original cause of radiator failure is
the corrosion of radiator. This is caused
by air mixed in the water. It shall be
ensured that there is no air leakage at
the pipe connection all the time, so
1) Drain the accumulated water in
the system, remove and close the
connection between the pipeline and
the diesel engine;
that the air can be discharged from the
2) Prepare 4% anti-acid solvent and
top of the radiator, ensuring that there
fresh water. Pour acid agent into water,
is generally no air in the system. The
and do not reverse the order;
radiator shall not be half filled with
coolant. If half a tank of coolant is
injected into the radiator, it will be
corroded quickly. When the set is not in
use, the coolant in the radiator can be
completely discharged or the radiator
can be fully filled with antifreeze
coolant.
1. External cleaning of radiator
In a dusty environment, dust and
debris will block the radiator blades
and affect the performance of the
3) After a few minutes upon mixing,
heat the solvent to a temperature not
higher than 49℃;
4) Pour the solvent slowly into the
radiator through the filler or bypass
pipe, and then foam will appear. After
the foam disappears, fill the radiator
with hot solvent;
5) Keep the radiator upright for a few
minutes, and then drain the solvent
back to the original container through
76
    "