Coolant, Mixing
It is extremely important that the system is filled with
the correct coolant concentration; refer to Technical
Data, page 132.
The coolant should be mixed with distilled, deionized
water. For Bukh specified water requirements; refer
to Technical Data, page 132.
NOTICE! If water quality can not be guaranteed, use
ready mixed coolant.
Coolant Level, Checking and
Topping Up
WARNING!
Do not open the coolant filler cap when the engine is
hot, except
in emergencies as 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.
Seawater System
The raw water system is the engine's external cooling
system. On engines with drives, the raw water pump
sucks in water via the drive, through the control
system's oil cooler to the raw water pump. The water
then passes through the raw water filter before being
pumped through the fuel cooler, intercooler, engine oil
cooler and heat exchanger. Finally the water is fed out
through the exhaust elbow, where it is mixed with the
exhaust gases.
On engines with reverse gears, the raw water pump
sucks in water via a raw water intake, after which the
water passes a raw water filter (extra equipment)
before being pumped through the intercooler, heat
exchanger, engine oil cooler and gearbox oil cooler.
Finally the water is fed out through the exhaust elbow,
where it is mixed with the exhaust gases.
Maintenance
98 47708085 11-2016 © Bukh
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