Sharp SMD2440JS Service Manual page 32

When servicing the Stirrer Fan it is very important not to bend any of the blades. The stirrer fan is
used to circulate the microwaves from the top of the cavity. If the blade is bent, there is a
WARNING:
possibility of one of the blades touching the top of the cavity and/or waveguide cover resulting in
arcing or damaging the Magnetron.
STIRRER COVER/BLADE REMOVAL
1.
Remove (4) Canoe Clips from Waveguide Cover. This can be done by
using a thin putty knife and/or knife, but being carefull not to damage
(Fig. S-1). If the Canoe Clips are too difficult
the Waveguide Cover
to remove, you can remove the Outercase and push the clips out.
2. To remove Stirrer Fan Antenna, turn plastic Antenna Holder counter
clockwise (Fig. S-2).
NOTE: The Antenna Holder is locked into place and can be difficult
to remove. It can be done by turning the Plastic Antenna Holder
counter cloockwise by hand or using a blunt object taking care
not to damage the Antenna Holder and/or Stirrer blade (Fig. S-2).
3. Once the Antenna Assy is removed, here you will have access to
the Stirrer Assembly and Stirrer Motor Shaft (Fig. S-3).
STIRRER MOTOR REMOVAL
1. Remove Outercase as shown in the "MICROWAVE DRAWER
DISASSEMBLY".
2. Remove the wires connected to the Stirrer motor and the (2)
screws holding the Stirrer motor (Fig. S-4).
To reassemble, just reverse all the above order.
Important details:
(A) After Stirrer Motor is reinstalled (if replaced), you can proceed to
reinstall Stirrer Fan Assy. The Stirrer Motor Shaft has to first be
placed on the Stirrer Fan Assy ( Fig. S-3) .
Then properly insert the Stirrer Motor Shaft and Assy into the hole
that has the Stirrer Motor ( Fig. S-5) .
Turn Stirrer Fan Assy until you feel the Stirrer Motor Shaft stem
lock into place. Once the Shaft is locked into the Stirrer Motor and
the plastic Antenna holders are lined up, turn the plastic holders
Clockwise either by hand or a blunt object so that you can lock
the Stirrer Fan into place. (Fig. S-6).
(B)Assure that the Stirrer Fan blades are not bent.
Fig. S-4
STIRRER MOTOR/FAN REMOVAL
Fig. S-5
32
Waveguide Cover
Fig. S-1
Counter Clockwise
"Remove"
Fig. S-2
Stirrer
Motor
Shaft
Stirrer
Antenna
Holder
Stirrer
Fan
Assy
Fig. S-3
Clockwise
"Install"
Fig. S-6