WEICHAI WD10 Service Manual - page 20
Service Manual for WD10 Diesel Engine
10
213 Lubrication of Tensioning Wheel
Apply general purpose lithium lubricating grease for lubrication of tensioning wheel (refer to
GB/T5671-1995)
214 Antifreeze Additive in Engine Cooling System
The adopted antifreeze additive is ethylene glycol, and it is allowed to replace it with domestic
long-acting antifreeze additive with reliable quality, refer to related description for specific
application method. The following two long-acting antifreeze additives in china are recommended:
JFL-336# Long-acting antifreeze additive
FD-30#
Long-acting antifreeze additive
It's important to note that long-acting antifreeze additive should be replaced periodically according
to related requirements.
Calculation of antifreeze additive (for reference)
Coolant amount: 40L (for an engine with radiator)
Current application temperature of coolant: -20
o
C
Required minimum anti-freezing temperature: -30
o
C
Calculation method: Find the point of coolant amount “40L” on x-coordinate, and draw a vertical
line through this point, and point 1 and 2 are the intersections between the vertical line and -20
o
C
oblique line, -30
o
C oblique line respectively. (As shown in Fig. 2-1)
6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56
Minimum anti-freezing temperature
2
4
6
8
10
12
14
16
18
20
22
24
26
28
13.5
17.5
Coolant amount (L)
A
m
o
u
n
t
o
f
an
ti
fr
ee
ze
a
d
d
it
iv
e
(L
)
Fig. 2-1 Antifreeze additive calculation map