Doosan DX700LC Operation And Maintenance Manual page 269

A. If anticorrosive additive level is below 0.3, add 100%
pure antifreeze to the radiator.
B. If anticorrosive additive level is greater 0.8, add a
50% distilled water and antifreeze mixture to lower
the additive reading.
NOTE: In either case keep the antifreeze concentration
level between 33% and 50%.
6. Run the engine to recirculate the coolant mixture. Be sure
that engine reaches operating temperature to ensure a
thorough mix. Shut down engine and retest antifreeze.
NOTE: When making adjustment, drain 1 liter (1 U.S.
quart) of coolant from the radiator. Add 30 cc (1
fl oz) at a time to the drained fluid. Keep track of
how many cc's (fl oz's) were added to the 1 liter
(1 U.S. quart) to obtain a proper reading. Then
multiply that number times the total system
capacity of liters (U.S. quarts). Add that amount
to the radiator.
Example: If 1 liter needs 90 cc to obtain proper
reading. Then system capacity of 40
liters x 90 cc = 3,600 cc (3.6 liters) of
correction fluid.
Inspection, Maintenance and Adjustment OP001123
4-81