DBW 2010 / 2016 8 Servicing Work
802
8.5.1 Swinging burner head away and in
WARNING
The ignition spark generator is operated with high voltage.
Before being swung away, the connectors of the wiring har-
ness in the vehicle must be disconnected, as otherwise there
is a danger of incurring life-threatening injuries.
When the burner head has been swung in again, the connec-
tors in the vehicle are connected.
NOTE
The heater is maintenance-friendly. Swinging away the
burner head enables access to the following components:
– Fuel pump and atomiser nozzle
– Solenoid valve
– Ignition spark generator
– Ignition electrodes
– Flame monitor
–Combustion chamber
– Nozzle holder pre-heating unit (if installed)
– With DBW 2010/2016, ensure proper seating of cable
grommets.
To achieve a corresponding opening angle, it may be neces-
sary to disconnect the electrical connections.
Swinging away
1 Disconnect electrical connections if necessary.
2. Loose nuts (3, Fig. 801) until screws (1) can be swung
away.
3. Swing away screws (1).
4. Swing away burner head (4).
Swinging in
1. Swing in burner head (4, Fig. 801) and move into assem-
bly position.
2. Swing in screws (1) and initially tighten hand-tight with
nuts (3) to prevent one-sided twisting.
3. Tighten nuts (3) to 5,0 + 1 Nm.
4. Make electrical connections if necessary.
NOTE
Make sure that the electrical connections are properly con-
nected in accordance with the colour coding.
Fig. 801 Swinging burner head away and in
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