Removing Drive Motor; Remove Heat Exchanger; Remove Combustion Tube - Webasto Thermo Top Pro 120 Workshop Manual

8.16

Removing drive motor

NOTE
If the drive motor has to be removed, the ignition spark
generator and the ignition electrodes can remain in-
stalled.
A
Fig. 45 Removing drive motor
A Drive motor
B Axle connection
Follow these steps:
1. Remove control unit. See chapter 8.6, "Removing control
unit" on page 30.
2. Remove fuel pump, see chapter 8.12, "Removing fuel
pump" on page 33.
3. Remove 4x screws (C), M3x10 T10.
4. Remove drive motor (A).
5. Remove axle connection (B).
8.17

Remove heat exchanger

DANGER
Danger of burns
After briefly operating the heater, the heat exchanger
may be hot. Allow the components to cool down if ne-
cessary.
NOTE
- Collect the coolant running out of the system in a suit-
able container.
- Block or disconnect coolant hoses.
- Dispose of coolants in an environmentally friendly
way.
9039412C Workshop manual TTP 120 _ 150
C
C Screws
Fig. 46 Heat exchanger with burner and sensors
Follow these steps:
1. Remove burner head, see chapter 8.4, "Disconnect burner
head" on page 30.
2. Remove screws that are fastening the heater (see also in-
stallation instructions).
B
3. Remove heat exchanger.
8.18

Remove combustion tube

Follow these steps:
1. Remove burner head, see chapter 8.4, "Disconnect burner
head" on page 30.
2. Remove heat exchanger if necessary.
A
Fig. 47 Remove combustion tube
A
Combustion tube
B Seal
3. Remove combustion tube (A) from the heat exchanger (C).
NOTE
Damaged seals must be replaced.
NOTE
Ensure that the seal does not slip.
NOTE
Seals must be replaced every time it is dismantled.
Repairing and replacing components | 8
C
B
C
Heat exchanger
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