Webasto Thermo 90, Руководство по ремонту

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9 Repair Thermo 90
906
9.2.5 Replacement of Combustion Air Fan
9.2.5.1 Removal
1. Remove heater (see 8.7.1.1).
2. Disconnect electrical connections (see 9.2.1.1).
3. Remove screws (2, Fig. 904).
4. Pull combustion air fan (1) from burner head (4) and
remove together with profiled packing ring (3).
NOTE
On heater Thermo 90 S with flanged control unit
remove control unit as required.
5. Perform procedures on components after
disassembly (see 9.1.1).
9.2.5.2 Installation
NOTE
Locate packing ring (3, Fig. 904) properly; do not
squeeze.
1. Bring combustion air fan (1) with new profiled
packing ring (3) in assembly position and secure with
screws (2).
2. Torque tighten screws (2) with 3 Nm ± 10%.
NOTE
On heater Thermo 90 S with flanged control unit install
control unit as required.
3. Make electrical connections (see 9.2.1.2).
4. Install heater (see 8.7.1.2).
Fig. 904 Replacement of Combustion Air Fan
Thermo 90
Thermo 90 S
Control Unit
1
2
3
4
1
NOTE
One of the newer models Thermo 90 shown.
Older models have the cable of the
temperature limiter located on the side.
1 Combustion Air Fan
2 Screw (2)
3 Profiled Packing Ring
4 Burner Head