Komatsu PC15MRX-1 Operation And Maintenance Manual page 164

MAINTENANCE PROCEDURE
Mixing rate of water and antifreeze
Min. °C
atmospheric
°F
temperature
liters
Amount of
antifreeze
US gal
liters
Amount of
water
US gal
Antifreeze is flammable, so keep it away from flame.
Antifreeze is toxic. When removing the drain plug, be careful not to get water containing antifreeze on
you. I If it gets in your eyes, flush your eyes with large quantities of fresh water and see a doctor at once.
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.
Prepare a container to catch drained coolant: Min 5.6 liters (1.48 US gal) capacity.
Prepare a water inlet hose.
1. Remove 2 bolts (1) from the cover on the right side of the
machine, then remove the cover above the radiator cap.
2. Check that the cooling water temperature has gone down
enough to make it possible to touch the radiator cap sur-
face by hand, then turn radiator cap (2) slowly until it con-
tacts the stopper to release the pressure.
3. Following this, push radiator cap (2), turn it until it con-
tacts the stopper, then remove it.
4-24
-10 -15 -20
14 5 -4
1.1 1.2 1.4
0.29 0.32 0.37
2.3 2.2 2.0
0.61 0.81 0.53
-25
-13
1.6
0.59
1.8
0.48
WARNING
MAINTENANCE