DAF LF45, LF55 Series. Manual — part 207
©
200505
6-1
Draining and filling
CE ENGINE COOLING SYSTEM
ΛΦ45/55 series
2
6
6. DRAINING AND FILLING
6.1 DRAINING, FILLING AND BLEEDING THE COOLING SYSTEM
In order to avoid damaging the
engine block, do not top up a warm
engine with cold coolant. Coolant is
a toxic fluid and must be handled
with care. Protect skin and eyes.
Coolant is harmful to the
environment; after use, it should be
processed as industrial chemical
waste. When the coolant is hot, there
is overpressure in the cooling
system. When removing the filler
cap, allow the overpressure to
escape by first loosening the filler
cap one turn.
Draining the cooling system
1.
Turn the heater temperature control knob in
the cab to the maximum 'hot' setting.
2.
Remove the cooling system filler cap.
3.
Collect the coolant. Position suitable
containers under the drain points.
4.
Drain the cooling system at the radiator via
the drain plug.
5.
Flush the cooling system.
6.
Close the drain plug.
Filling and bleeding the cooling system
1.
Turn the heater temperature control knob in
the cab to the maximum 'hot' setting.
2.
Fill the cooling system with the specified
coolant.
3.
Run the engine for several minutes.
4.
The cooling system is self-bleeding.
Ensure that the bleed pipe from the
thermostat housing to the header tank is not
kinked or pinched.
Note:
Make sure that air can escape when the
cooling system is filled.
5.
Check the coolant level, and top up with
coolant if necessary.
}
M201084
CE ENGINE COOLING SYSTEM
6-2
©
200505
Draining and filling
6
ΛΦ45/55 series
2
©
200505
7-1
Cleaning
CE ENGINE COOLING SYSTEM
ΛΦ45/55 series
2
6
7. CLEANING
7.1 CLEANING THE EXTERIOR OF RADIATOR AND AIR COOLER
Inhalation of dust may have serious
consequences for your health.
Take the necessary precautions,
such as wearing goggles and a
facemask.
Note:
With the aid of a simple tool, the radiator and the
air cooler can be blow-cleaned.
The tool (radiator cleaner) cannot be ordered
from DAF. It should be manufactured by yourself
according to the drawing.
Key to drawing:
}
100mm
5mm
2
1150mm
2
4
3
5
5
4
1
1
M2108
1
Solder up
2
Solder
3
Quick-release coupling for air hose
4
Steel pipe,
10 mm
5
6 x
1.5 mm between holes, with a
centre-to-centre distance between the
holes of 7 mm, drilled on one side
CE ENGINE COOLING SYSTEM
7-2
©
200505
Cleaning
6
ΛΦ45/55 series
2
1.
If the vehicle has air conditioning, loosen the
support of the refrigerant pipes (1) on the
radiator and remove the condenser from the
air cooler supports. Push the condenser as
far as possible forwards.
2.
Insert the radiator cleaner (3) between the air
cooler (1) and radiator (2) from underneath,
with the air holes facing the air cooler (1).
3.
Apply air pressure to the radiator cleaner (3)
and continue blow-cleaning the air cooler (1)
until no more dirt comes out.
4.
Turn the radiator cleaner (3) over, turning the
holes towards the radiator (2), and blow-
clean the radiator (2).
5.
If the vehicle has air conditioning, fit the
condenser in the air cooler supports and
tighten the support of the refrigerant pipes
(1) on the radiator.
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M201351
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M201352
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