Thermo Pro 90 9 Maintaining and Replacing Components
902
9.4 Replacing circulation pump
Removal
1. Remove heater (see Section 8.5.1).
2. Disconnect electrical connections (see Section 9.3).
3. Remove screws (4, Fig. 901).
4. Remove clamp (3) and circulation pump (2).
5. Carry out measures on components when dismantled
(see Section 9.2).
Installation
1. Coat sealing ring (1, Fig. 901) with acid-free grease
(Vaseline).
2. Position circulation pump (2, Fig. 901) in assembly posi-
tion and fasten with clamp (3) and screws (4).
3. Tighten screws (4) to 3 Nm ± 10%.
4. Connect electrical connections (see Section 9.3).
5. Install heater (see Section 8.5.2).
Fig. 901 Replacing circulation pump
1
2
1 = Sealing ring
2 = Circulation pump
3= Clamp
4 = Screw (2x)
3
4
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