Table of Contents
Advertisement
MAINTENANCE
Density (%)
•
Coolant is toxic. When opening the drain valve, be careful not to get coolant on you. If it gets in
your eyes, flush your eyes with large amount of fresh water and see a doctor immediately.
•
When handling the cooling water containing coolant that has been drained during changing the
coolant or repair of radiator, contact your Komatsu distributor or request a qualified company to
perform the operation. Coolant is toxic, so never pour it into drainage ditches or drain it onto the
ground surface.
Non-Amine Engine Coolant (AF-NAC) is already diluted with distilled water, so it is not flammable.
Check the density with a coolant tester.
Prepare a container whose capacity is larger than the specified coolant volume to catch drained coolant.
Clean the inside of the cooling system according to the following procedure.
1.
Place the machine on a level ground, then stop the engine.
2.
Open engine hood (1).
3.
Check that the coolant temperature is low enough to make
it possible to touch the radiator cap surface by bare hand,
turn radiator cap (2) slowly until it hits the stopper, and re-
lease the pressure.
4.
While pushing radiator cap (2), turn it until it touches to the
stopper, then remove it.
5.
Remove drain valve cover (3).
30
36
41
k
k
WARNING
MAINTENANCE PROCEDURE
46
50
54
58
61
64
4-21
Advertisement
Table of Contents
