![background image](http://html1.mh-extra.com/html/vetus/m-series/m-series_operation-manual_1010391052.webp)
1 cm
(
3
/
8
”)
COOLANT
COOLANT
50
6 Maintenance
Checking coolant level
Daily, before starting.
6 Checking coolant level
• Check the coolant level in the header tank.
This has to be checked when the engine is
cold
.
• Remove the cap of the filler neck on the
heat exchanger.
7 Coolant level
The level of the coolant must be approx. 1 cm
(3/8”) below the lower edge of the filler neck.
8 Topping up coolant
• If necessary, top up.
The internal cooling system can be filled with
a mixture of anti-freeze (40 %) and tap water
(60 %) or with a special coolant. For specifica-
tion, see page
.
W
arning
Never open the cap on the header tank when
the engine is at operating temperature.
n
ote
For a keel-cooled version, see page
.
If a water heater is connected, see page
C
aution
Never fill the cooling system with sea water or
brackish water.
VD00158
VD00987
VD00984
Summary of Contents for M Series
Page 1: ...Operation manual M LINE Marine Diesel Engines 345102 01 ...
Page 2: ...ii ...
Page 146: ...144 ...