Volvo Penta D4 Operator's Manual page 78

Maintenance
76
Coolant Level, Checking and
Topping Up
WARNING!
Do not open the coolant filler cap when the engine is
warm, except in emergencies, this could cause serious
personal injury. Steam or hot fluid could spray out.
1 Turn the filler cover slowly counter-clockwise and
release any pressure from the system before
removing the cover completely.
2 Top the coolant up as necessary. The coolant level
shall be between the MAX and MIN marks on the
expansion tank.
3 Screw the filler cover on.
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.
7748934 04-2008