Replacement Of Combustion Air Fan - Webasto Air Top 2000 D Service And Repair Manual

Air Top 2000

9.2.4 Replacement of Combustion Air Fan

9.2.4.1 Removal
1. Remove air heater (see 8.7.1.1).
2. Remove control unit (see 8.7.2.1).
3. Remove seal (3 Fig. 902) from lower housing shell
and discard.
4. Remove air heater from lower housing shell.
5. Remove heating air intake (1, Fig. 902) and remove
insulation (2).
6. Remove screws (1, Fig. 903).
7. Withdraw combustion air fan (3) and remove gasket
(2).
8. Perform work on components after disassembly (see
9.1.1).
9.2.4.2 Installation
1. Ensure that sealing surfaces on combustion air fan
and on heat exchanger are not damaged.
2. Place new gasket (2, Fig. 903) onto flange of
combustion air fan (3).
1 Screw (5)
2 Gasket
3 Combustion Air Fan
1
Combustion air fan must not be
disassembled any further
Fig. 903 Replacement of Combustion Air Fan (Disassembly)
Apply Loctite to screws (1).
3. Bring combustion air fan into assembly position and
mount using screws (1).
4. Torque screws (1) to 4 Nm.
5. Place air heater with heating air intake (1, Fig. 902)
and insulation (2) into lower housing shell and on
side lock in position in housing.
6. Fit new seal (3) to lower housing shell.
7. Install control unit (see 8.7.2.2).
8. Install air heater (see 8.7.1.2).
9. Check CO setting and adjust as required (see 6.2).
2
3
9
NOTE
2
Before assembly always
renew gasket.
Repair
905