Komatsu WA100M-7, Operation And Maintenance Manual

Page: 122 / 304

3.3 Operation Operation
3-52
WA80M-7, WA100M-7 – VENAM03001
Checks before starting the engine
Check coolant level – add coolant
ATTENTION
 An improper coolant mixing ratio cause damage to the alu-
minium radiator. The proportion of coolant must always be
between 30% and 60%.
 Danger of fire! Coolant may ignite when making contact with
the hot engine.
 Wait until the engine has cooled down before adding coolant.
1. Open the bonnet.
2. Check that the coolant level in the expansion tank is between
the FULL and LOW marks.
Add coolant if the coolant level is below LOW.
3. Remove the lid of the expansion tank.
4. Add coolant until the FULL mark is reached.
5. Firmly tighten the lid after adding coolant.
6. If the expansion tank becomes empty again after a short
period of time, immediately have the cooling system checked
for leaks and repaired at a workshop.