20
Bentone
!
When servicing/replacing components that affect combustion, an analysis and soot test must
be carried out on the installation
.
5.4 Replacing the fan motor and fan
wheel
1.
Switch off mains power and disconnect the Europlug from the burner.
2.
Remove the burner from the boiler by loosening the screw (A).
3.
Loosen the housing screw (B) and remove the front cover (C). This will
make it easier to fit the motor and fan wheel.
4.
Disconnect the electrical connector to the motor.
5.
Loosen the spring (G) holding the transformer.
6.
Loosen the screws (F) (x2) holding the motor flange.
7.
Lift out the motor.
8.
Remove the end of the drive coupling from the motor axle, loosen and
remove the fan wheel.
9.
Fit the fan wheel to the motor, tighten the locking screw. The fan wheel
must be fitted with a little play between the motor and the fan wheel.
Make sure that there are no scratching noises. Refit the end of the drive
coupling.
10. Align the motor flange with the fan housing. Make sure
the drive coupling has not fallen out and that it is correctly
inserted in the end of the drive coupling on the motor and
pump. Also ensure that no cables are pinched.
11. Re-assemble the motor and fan housing. Alternately tighten
the screws. This is done to ensure the fan housing and the
motor flange are aligned in the correct position.
12. Connect the motor cable.
13. Refit the spring (G) holding the transformer.
14. Assemble the fan housing and front cover and insert the burner into the
boiler.
15. Connect the Europlug and turn on the mains power.
16. Start the burner and check the combustion.
G
F
F
Summary of Contents for BENTOFLEX ST 146 B30A
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