Electrolux EI30BM55HB - 30" Microwave Oven, Техническое и сервисное руководство

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Component Teardown
4-10
Cooling Fan Motor Removal
1. REMOVAL
1. Disconnect the power supply cord, remove the
oven from wall and remove outer case (Refer to
procedure of “Removal of Oven from Wall” and
“Outer case Removal”.)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove two (2) screws holding the chassis sup-
port right to the rear and face of the oven cavity
flange.
5. Remove the one (1) screw holding the noise filter
assembly to the fan duct.
6. Disconnect the wire leads from the fan motor.
7. Disconnect the high voltage wire leads of the high
voltage rectifier assembly from the
magnetron.
8. Disconnect the filament lead of the transformer
from the magnetron.
9. Remove the one(1) screw holding the hood duct
to the fan duct and remove the one (1) screw
holding the oven cavity top plate to the fan duct.
10. Remove the one (1) screw holding the right base
plate to the fan duct and remove the fan duct
assembly.
11. Remove the fan blade from the fan motor shaft
according the following procedure.
12. Hold the edge of the rotor of the fan motor by
using a pair of groove joint pliers.
13. Remove the fan blade from the shaft of the fan
motor by pulling and rotating the fan blade with
your hand.
14. Now, the fan blade will be free.
CAUTION
Make sure that any pieces do not enter the gap
between the rotor and the stator of the fan motor
because the rotor is easily shaven by pliers and
metal pieces may be produced.
* Do not touch the pliers to the coil of the fan
motor because the coil may be cut or
damaged.
* Do not disfigure the bracket by touching
with the pliers.
CAUTION
Do not reuse the removed fan blade because the
hole (for shaft) may be larger than normal.
2. INSTALLATION
1. Install the fan motor to the fan duct with the two
(2) screws.
2. Install the fan blade to the fan motor shaft accord-
ing to the following procedure.
3. Hold the center of the bracket which supports the
shaft of the fan motor on the flat table.
4. Apply the screw lock tight into the hole (for shaft)
of the fan blade.
5. Install the fan blade to the shaft of fan motor by
pushing the fan blade with a small, light weight,
ball peen hammer or rubber mallet.
6. Install the fan duct to the oven cavity, base plate
right and hood duct with the three (3) screws.
7. Connect the high voltage wire leads with high
voltage rectifier from the magnetron, referring to
the pictorial diagram.
8. Connect filament lead of the transformer from
high voltage capacitor, referring to the pictorial
diagram.
9. Connect high voltage wire from capacitor, refer-
ring to the pictorial diagram.
10. Connect the wire leads to the fan motor, referring
to the pictorial diagram.
11. Refer to procedure of “Outer case Removal“. And
reverse their procedure. Re-install the outer case.
CAUTION
* Do not hit the fan blade with excessive force
when installing because the bracket may be
disfigured.
* Make sure that the fan blade rotates smooth
after installation.
* Make sure that the axis of the shaft is not
slanted.
Gap
Bracket
Stator
Coil
Shaft
Axis
Stator
Rotor
These are the positions that
should be pinched with pliers.
Shaft
Table
Center of
bracket
Rear View
Side View
Rotor
Groove
joint pliers