This is what the removed heater fan looks like: 1 – protective cover of the electric motor; 2 – right fan shroud; 3 – left fan casing; 4 – fan support.
Technical characteristics of the heater fan electric motor type 45.3730:
- Current consumption at maximum rotation speed, A, no more than…..14
- Maximum fan speed, min⁻¹…..4100
You will need a screwdriver.
1. Peel off the foam seal from the right fan casing.
2. Remove the support from the fan shroud.
3. Using a screwdriver, pry up the plastic latches of the fan casing and disengage them..
4. ...and separate the casing parts.
5. Unfasten the two spring latches by prying them up with a screwdriver.
6. Remove the engine cover.
7. Remove the motor with the fan impeller.
Warning: Do not remove the fan impeller from the motor shaft to avoid disturbing the balance.
8. Remove the two screws securing the brush holder…
9. …remove the two embedded nuts…
10. …and remove the brush holder.
11. Inspect the manifold. If it is very dirty or has scratches, marks, or spots on it,
burns, clean the collector with fine-grained sandpaper. For other faults
the electric motor, the manufacturer recommends replacing the heater motor.
12. Remove the springs from the brush guides.
13. To reassemble the fan, insert two cage nuts.
14. Place the insulating washer on the shaft.
15. Carefully bend back the edges of the guides…
The source is on the website: vazbook.ru
16. …and insert the brushes into the guides until they stop.
17. Install the brush holder on the motor.
18. Insert the brush springs into the guides…
19. …and bend the edges of the guides.
20. Place two spring clips onto the cage nuts.
Note: To make installation of the spring clips easier, tie a thin wire around them without tightening it. When installing the engine cover, hold the clips by the wire, otherwise they will be pulled off the nuts by the stator magnet.
21. Insert the motor into the left fan housing.
22. Install the engine cover and secure it with spring clips, holding them by the wire.
23. Connect and snap together the left and right fan casings. Place the plastic support on the casing protrusions.
24. Glue the foam seal to the fan casing.
