22
Bentone
!
When servicing/replacing components that affect combustion, an analysis and soot test must
be carried out on the installation.
5.5 Replacing the fan motor and fan
wheel
1. Switch off mains power, remove the cover and disconnect the Europlug
from the burner.
2. Remove the oil hoses from the pump.
3. If necessary, remove the burner from the boiler by loosening the
screw(A).
4. Loosen the hex nut from the stud bolt. Pull the electrical package
backwards and rotate approx. 90° clockwise.
5. Disconnect all electrical connectors, remove the photoresistor.
6. Disconnect the connection tube (D) from the pump.
7. Unscrew the three set screws. Remove the fan housing with motor and
pump.
8. Loosen the pump
9. Remove the screws (F)(x3) holding the motor fl ange.
10. Lift out the motor.
11. If necessary, disassemble the fan housing to clean.
12. Loosen and remove the fan wheel.
13. Fit the fan wheel to the motor, tighten the locking screw. The fan wheel
must be fi tted with a little play between the motor and the fan wheel.
Make sure that there are no scratching noises.
14. Assemble the fan housing.
15. Align the motor fl ange with the fan housing.
16. Re-assemble the motor and fan housing. Alternately tighten the
screws. This is done to ensure the fan housing and the motor fl ange
are aligned in the correct position. Make sure that no scraping noise can
be heard.
17. Fit the connection pipe (D).
18. Connect all electrical cables and insert the photoresistor.
19. Refi t the electrical package.
20. Insert the burner into the boiler.
21. Fit the oil hoses
22. Connect the Europlug and turn on the mains power.
23. Start the burner and check the combustion.
F
F
F
H
H
H
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