Doosan P185WDOU-T4F, Руководство по эксплуатации и обслуживанию

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ENGINE OPERATION Operation & Maintenance Manual
1. Compare the color of part A on the test sheet to the color of GLYCOL/FREEZEPOINT
(End pad) of the standard color table.
2. Compare the color of the test sheet (B) to the color of MOLYBDATE (Middle pad) of
the standard color table.
3. Compare the color of the test sheet (C) to the color of NITRITE of the standard color
table.
1. Compare the changed pink color part A of the test sheet with the
GLYOOL/FREEZEPOINT (End pad) of the standard color table on top of the container
and confirm the concentration. The concentration indication has to be within the
color scope of 33~50%.
2. The state of additives for anticorrosion is shown on the point where the color of
MOLYBDATE (Middle pad) on the standard color table (which is identical with the
Middle (B) of the test sheet) is crossed with the color of NITRITE on the standard
color table (which is identical with the (C) of the test sheet). It should be maintained at
the optimum range, in the green section between 0.3 to 0.8.
3. If the measurement result is below 0.3, replenish anticorrosion additives (DCA4). If
it is above 0.8 or, drain a little coolant and then inject clean tap water to adjust the
concentration.
If the color on the test sheet does not match the color of the standard
color table, f nd a middle color on the standard color table. For example,
if the color of (C) of the test sheet matches D and F on the NITRITE of
the standard color table, select E.
To prevent corrosion inside of the engine cooling unit, drain the coolant
and replace it with new coolant once a year.
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