22
Bentone B55/B65
General
5.3 Servicing the air damper
Removal and fitting
1. Turn off the main power switch and disconnect the Eurostecker
connectors from the burner.
2. Undo the nuts (E) and pull out the burner body on its guides.
3. Remove the intake grille from the air intake.
4. Release the damper motor.
5. Clean the air damper (F) and the intake. Lubricate the damper shaft if
applicable.
6. Re-engage the damper motor.
7. Fit the intake grille over the air intake.
8. Slide the burner together and secure it with the nuts (E).
9. Connect the Eurostecker connectors and turn on the main power switch.
10. Check combustion*.
5.4 Replacing the damper motor
Removal and fitting
1. Turn off the main power switch and disconnect the Eurostecker
connectors from the burner.
2. Note the positions of the cables and then disconnect the cables from the
damper motor.
3. Release the damper motor and lock it at 30°.
4. Undo the screws (G) that secure the mounting plate for the damper motor.
5. Raise it carefully so that the air damper stays in the air intake.
6. Disconnect the (H) link arm from the motor shaft.
7. Separate the damper motor from the mounting plate (I).
8. Refit the damper motor on the mounting plate.
9. Connect the link arm to the damper motor shaft. It is important that the
screw is at right angles to the plane of the shaft.
10. Release the damper motor and lock it at 30°.
11. Fit the mounting plate by guiding the link arm into the attachment point
on the air damper and the air damper shaft into the mounting plate (make
sure that the bushings are fitted between the mounting plate and damper
shaft).
12. Release the damper motor and check that the damper moves freely. Close
the damper and zero the graduated scale on the damper motor.
13. Make the electrical connections to the damper motor.
14. Reset the damper motor cams.
15. Connect the Eurostecker connectors and turn on the main power switch.
16. Check combustion.*
E
F
H
G
I
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