DAF CF65, CF75, CF85 Series . Manual — part 267
©
200324
6-1
Draining and filling
XE ENGINE COOLING SYSTEM
CF65/75/85 series
2
9
6. DRAINING AND FILLING
6.1 DRAINING, FILLING AND BLEEDING THE COOLING SYSTEM
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In order to avoid damaging the
cylinder 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 control knob to the
"warmest" temperature setting. As a result,
the heater valve will be fully opened.
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 cylinder
block via the drain cock (A) and the radiator
via the drain plug (B).
5.
Flush the cooling system.
6.
Close the drain tap (A) and fit the drain
plug (B).
Note:
The cooling system is auto-bleeding.
Filling and bleeding cooling system
1.
Turn the heater temperature control knob in
the cab to the "warmest" setting.
2.
Fill the cooling system with the specified
coolant.
3.
Run the engine for several minutes.
4.
Ensure that the air bleed pipe from the
thermostat housing to the header tank is not
twisted or pinched.
5.
Check the coolant level, and top up with
coolant if necessary.
A
B
M200556
XE ENGINE COOLING SYSTEM
6-2
©
200324
Draining and filling
9
CF65/75/85 series
2
If the vehicle is equipped with a water/air cab
heater:
1.
Run the engine at idling speed.
2.
Switch on the cab heater, using the rocker
switch on the dashboard.
3.
Turn the heater temperature control knob in
the cab to the "warmest" setting.
4.
Switch on the heater fan.
5.
Set the rocker switch on the thermostat in the
cab to position 1.
Note:
Combustion will start after approximately
one minute.
6.
Allow the cab heater to operate for
approximately 15 minutes.
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200324
7-1
Cleaning
XE ENGINE COOLING SYSTEM
CF65/75/85 series
2
9
7. CLEANING
7.1 CLEANING THE EXTERIOR OF RADIATOR/AIR COOLER
}
Inhalation of dust may have serious
consequences for your health. Take
the necessary precautions, such as
wearing goggles and a face mask.
Cleaning wire mesh
1.
Remove the lower grille.
2.
Remove the wire mesh.
3.
Clean the wire mesh.
Cleaning, radiator/air cooler
With the aid of a simple tool, the radiator and the
air cooler can be blow-cleaned.
This tool can be made in your own workshop. It
cannot be ordered from DAF.
Key to drawing:
1.
Solder up
2.
Solder
3.
Quick-release coupling for air hose
4.
Steel pipe, ø 10 mm
5.
6 x ø 1.5 mm between holes, with a centre-
to-centre distance between the holes of 7
mm, drilled on one side.
Note:
Make sure that the air cooler and radiator
element are not damaged when positioning the
radiator cleaner.
1.
From below, insert the radiator cleaner (4)
between the air cooler (1) and radiator (2),
with the air holes facing the air cooler (1).
2.
Apply air pressure to the radiator cleaner (4)
and continue blow-cleaning the air cooler (1)
until no more dirt comes out.
100mm
5mm
2
1150mm
2
4
3
5
5
4
1
1
M2108
1
2
3
4
M2109
P
XE ENGINE COOLING SYSTEM
7-2
©
200324
Cleaning
9
CF65/75/85 series
2
3.
Turn the radiator cleaner over, turning the
holes towards the radiator (2), and blow-
clean the radiator (2).
4.
Fit the wire mesh.
5.
Install the lower grille.
1
2
3
4
M2110
P
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