Komatsu PC210, Operation & Maintenance Manual

Page: 175 / 266

3-29
PC210/240-ENG
• When deciding the ratio of antifreeze to water, check the lowest ;
temperature in the past, and decide from the mixing rate table given
below.
It is actually better to estimate a temperature about 10
o
C lower when
deciding the mixing rate.
Mixing rate of water and antifreeze
PC210
Min. C -5 -10 -15 -20 -25 -30
atmospheric
temperature F 23 14 5 -4 -13 -22
Amount of
antifreeze
l
5.1 6.7 8.0 9.1 10.2 11.1
Amount of
water
l
17.1 15.5 14.2 13.1 12.0 11.1
PC240
Min. C -5 -10 -15 -20 -25 -30
atmospheric
temperature F 23 14 5 -4 -13 -22
Amount of
antifreeze
l
5.4 7.0 8.4 9.6 10.7 11.65
Amount of
water
l
17.4 16.3 14.4 13.7 12.6 11.65
WARNING
Antifreeze is flammable, so keep it away from any flame.
• Use city water for the cooling water.
If river water, well water or other such water supply must be used,
contact your Komatsu distributor.
• We recommend use of an antifreeze density gauge to control the
mixing proportions.
WARNING
When removing drain plug, avoid pouring coolant on yourself.
24. SERVICE PROCEDURE