DAF LF45 Maintenance Manual page 106

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES
Draining and filling
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
5
approximately 15 minutes.
Steering gear and brake system
5-4
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ΛΦ45/55 series
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200515