Inspection Procedures Of Coolant Concentration - Hitachi ZW 310-6 Operator's Manual

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 7-71 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.

Inspection Procedures of Coolant Concentration

Check the concentration of DCA4 in coolant using the
inspection kit shown below.
Name of Kit
Inspection Kit CC2602
 Outline
1. Both A and B reagents are coated on CC2602 test
paper, allowing to measure the color changes on
both A and B reagents.
2. At the same time, one more reagent is coated to
easily determine the antifreeze concentration
through color change.
(The antifreeze concentration checked by this
method should be just a guide line. When the exact
antifreeze concentration is required, measure it using
a specified equipment.)
3. Do not use diluted coolant for measurement. Collect
coolant into the attachment beaker. Directly dip the
test paper into the collected coolant. Compare the
reagent color change on the test paper with the color
specimen coated on the test paper box 45 seconds
after desiccating.
MAINTENANCE
Cummins Hitachi Part
Part No. No.
- 4404083
7-75
2
Contents of Kit:
Plastic Coolant Receiver Pipette
(I) (II)
1 2 3
A SODIUM NITRITE Concentration
B SODIUM MOLYBDATE Concentration
A SODIUM NITRITE Concentration
90Z7B-7-80-1
Color
Specimen
Plastic Test Paper Box
(III)
M162-07-077
CC2602 Test Paper