Change Burner Insert, Combustion Pipe And Heat Exchanger - Webasto Type Air Top 2000 ST B Workshop Manual

Air Top 2000 ST
9.2.8 Change burner insert, combustion pipe
and heat exchanger
9.2.8.1 Removal
1. Remove the heater (see 8.7.1.1).
2. Remove the casing parts (see 9.2.1).
3. Remove the control unit (see 9.2.3.1).
4. Remove the overheating sensor (see 9.2.4.1).
5. Remove the combustion air fan (see 9.2.5.1).
6. Remove the flame sensor (only petrol heater)
(see 9.2.6.1).
7. Remove the glow plug (see 9.2.7.1).
IMPORTANT
In the following procedure make sure that the fuel connec-
tion is not bent.
8. Remove the burner insert (5, Fig. 904).
9. Remove the combustion pipe (13) and seal (12) from the
heat exchanger (9) and dispose of the seal (12) sepa-
rately.
10. Complete work on stripped down components (see
9.1.1).
9.2.8.2 Installation
1. Fit a new seal (12, Fig. 904) into the heat exchanger (9)
and bring the combustion pipe (13) into the assembly
position.
The burner insert (5) is only fixed in place when installing the
flame sensor and glow plug.
2. Fit the glow plug (see 9.2.7.2).
3. Fit the flame sensor (only petrol heater)
(see 9.2.6.2).
IMPORTANT
In the following procedure make sure that the fuel connec-
tion is not bent.
4. Introduce the burner insert (5) in the heat exchanger (9).
Make sure that the cable of the flame sensor is posi-
tioned under the fuel line.
5. Secure the burner insert (5) and the air baffle (3) with
screws (2).
6. Tighten the screws (2) to 6 ± 0.6 Nm.
7. Mount the combustion air fan (see 9.2.5.2).
8. Install the control unit (see 9.2.3.2).
9. Fit the overheating sensor (see 9.2.4.2).
10. Fit the insulators (11).
11. Position the casing parts (see 9.2.2).
12. Install the heater (see 8.7.1.2)
NOTE
Repair
909