Doosan DL06 - Page 38

DL06K Interim Tire-4 Diesel Engine Technical Information
36
CAUTION :
Do not measure longer than 75 seconds. If the test takes longer, the color will
be changed.
z
Test paper discriminance
a) Compare glycol/freeze point (end pad) in the table with the test paper color.
b) Compare molybdate (middle pad) in the table with the test paper color.
c) Lastly, compare nitrite in the table with the test paper color.
(4) Compare the changed color of the pink "a)"
at the edge of the test paper with glycol/freeze
point on the top of the container to check
viscosity. (The viscosity indication should be
between 33% and 50% color scope.)
(5) The point that "b)" vertical direction molybdate
at the center of the test paper crosses with the
color of "c)" horizontal direction nitrite on the
test paper indicates the status of additive for
corrosion prevention. The indication mark
should be between 0.3 and 0.8 green sector.
(6) If the measurement result is under 0.3, refill
the anticorrosive agent (DCA4). Or, if it is
over 0.8, drain some cooling water and
inject tap water to adjust concentration
Test paper
c
)
b
)
a
)