3 - 27
E7 - DRAIN AND CHANGE THE COOLING LIQUID
These operations are to be carried out if necessary or once a year at the
coming of winter.
Place the truck on level ground with the engine stopped and cold.
LIQUID DRAINING
- Lift up the cabin (See chapter : INSTRUMENTS AND CONTROLS in
paragraph : 2 - DESCRIPTION).
- Open the tap 1 (fig. A7/1) of the radiator.
- Untighten the drain plug 2 (Fig. E7/2) of the engine block.
- Unscrew the filler plug 3 (Fig. E7/3) of the expansion pan and empty the
latter.
- Remove the filler plug 5 (Fig. E7/5) of the radiator.
- Allow the cooling circuit to drain completely while ensuring that the ports do
not get clogged.
- Check the condition of the hoses as well as the fastening devices and
change the hoses if necessary.
- Rinse the circuit with clean water and use a cleaning product if necessary.
LIQUID FILLING
- Close the tap 1 (fig. A7/1).
- Retighten the drain plug 2 (Fig. E7/2) (Tightening torque 7 to 12 N/m).
-
Slowly and completely fill the cooling circuit (See chapter : LUBRICANTS
AND FUEL in paragraph : 3 - MAINTENANCE)via the filler port 5 (Fig. E7/4).
- Fill the expansion pan to the maximum level.
- Allow the engine to run at idle for a few minutes.
- Check for possible leaks.
- Check the level and top up if necessary.
- Refit the filler plug 4 (Fig. E7/4).
- Screw the filler plug 3 (Fig. E7/3)
The engine does not contain any corrosion resistor and must be filled during
the whole year with a mixture containing 25 % of ethylene glycol-based anti-
freeze.
E7/1
E7/2
E7/3
E7/4
4
5
1
2
3
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