Volvo Penta D4 Series Operator's Manual page 88

Maintenance
86
Freshwater System, Draining
WARNING!
Stop the engine and let it cool before starting work on
the cooling system. Hot fluids and hot surfaces can
cause burns.
WARNING!
All coolant is hazardous and harmful to the environ-
ment. Do not consume. Coolant is flammable.
1 Remove the filler cover on the expansion tank to
speed up the coolant drainage.
2 Loosen the hose (1) mounted on the intercooler and
connect to the drain cock (2) on the heat exchanger.
Open the cock (2). Let all the coolant run out into a
container.
3 Screw in the stop cock.
4 Move the hose to the drain cock (3) on the engine
block and continue draining the coolant.
5 Close the cock and put the hose back on the inter-
cooler.
6 Collect the old coolant and hand it to a re-cycling
station for disposal.
47702599 12-2011