Chapter II Technical Information of Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
47
Fig. 2-8-2 Checking the coolant level
（
for
reference only
）
Warning:
Opening the radiator cover when the
diesel engine has not been cooled completely may
cause spraying of coolant and cause serious scalding.
The engine and the radiator must be cooled before the
radiator cover is opened.
Fill coolant into the radiator (see Fig. 2-8-28):
(1) Make sure that both the engine and the radiator are
cooled.
(2) Press the radiator cover and rotate it in the
anticlockwise direction, the radiator cover can be
removed.
Fig. 2-8-28 Radiator (for reference only)
Fig. 2-8-29 Checking the radiator fan
assembly
(3) The coolant level should reach the bottom of filler
neck. If the coolant is not enough, add coolant.
(4) Add coolant slowly to avoid coolant overflowing.
Remove all the overflown coolant if the coolant
overflows.
(5) Close the radiator cover and tighten it.
6.2 Check the stopping or working conditions of the
radiator at a low temperature ( lower than 90
℃
) and at a
high temperature (higher than 90
℃
), send it for repair if
any problem is found. See Fig. 2-8-29.
6.3 Generally, the service life of the long-acting
antifreeze and antirust fluid is 1 ~ 2 years, the fluid
should be replaced when expired. When replacing the
antifreeze and antirust fluid, run the diesel engine for 5
minutes after adding new fluid to make the system fill
with the new fluid; stop the diesel engine and check the
fluid level, add fluid if not enough.
Attention:
(1) Unprocessed hard water such as tap water, mineral
water is not allowed for use.
(2) Poor quality antifreeze and antirust fluid or mixture of
different grades of antifreeze and antirust fluid is not
allowed for use in order to prevent from corrosion.
(3) If the antifreeze and antirust fluid loses, firstly, check
if the density of the antifreeze and antirust fluid
increases; if it does not, the loss is caused by leakage,
then eliminate the leakage and add the same grade of
antifreeze and antirust fluid in; if it increases, the loss is
caused by water evaporation, add distilled water in. After
adding distilled water or concentrated solution in and
mixing it evenly, check the density of the antifreeze and
antirust fluid again until it reaches the value
corresponding to the freezing point required. Send it to a
professional service station for check and maintenance
in time if users do not have required conditions.
Fluid
reservoir
Radiator
cover
Radiator
Water drain
plug
Fan assembly
