Hitachi ZW 310-6 Operator's Manual page 401

7. Install filter (3) firmly by hand.
Follow the instructions supplied with the filter.
8. Open coolant shut-off valves (2) and install radiator cap
(1).
9. Run the engine and check for coolant leaks.
10. Idle the engine for about five minutes to purge all the air
from the coolant.
11. After air has been purged from the system, stop the
engine and check the coolant level again.
12. If needed, add required amount of the coolant.
f
NOTE: Refer to page 7-81 for the correct mixture.
13. Check the DCA4 concentration in coolant as follows.
f
NOTE: The coolant concentration may be outside the
specification according to operation conditions or due to an
unexpected failure. Then, it is recommendable to check the
concentration.
MAINTENANCE
3
7-87
OM0200
2
90Z7B-7-80-1