Cord Holder Removal; Power Supply Cord Replacement - Sharp R-990KS Service Manual

CAUTION:
• Do not use this removed fan blade again. Because the
hole (for shaft) of it may become bigger than a standard
one.
7. Remove the two (2) screws and nuts holding the fan motor and
thermal cut-out mounting angle from the fan duct.
8. Now, the fan motor is free.
2. INSTALLATION
1. Install the fan motor and thermal cut-out angle to the fan duct with
the two (2) screws and nuts.
2. Install the fan blade assembly to the fan motor shaft according the
following procedure.
1) Hold the center of the bracket which supports the shaft of the
fan motor on the flat table.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear View

[14] CORD HOLDER REMOVAL

1. Remove the one (1) special screw holding the cord holder to the
rear cabinet, using the special driver LHSTIX DLR4-100T.
2. Now, the cord holder is free.
NOTE: When securing or loosening the special screw, LHSTIX DLR4-
100T type screw driver should be used.

[15] POWER SUPPLY CORD REPLACEMENT

1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the brown and blue wire leads of the power supply cord
from the noise filter.
3. Remove the single (1) screw holding the green/yellow wire lead to
the base plate.
4. Remove the power supply cord from the hole in the rear cabinet.
5. Now, the power supply cord is free.
2. REINSTALL
1. Insert the power supply cord into the hole of the rear cabinet.
2. Earth the green/yellow wire lead of the power supply cord to the
bottom plate with the single (1) screw.
3. Connect the brown and blue wire leads of the power supply to the
noise filter referring to the Pictorial Diagram.
4. CARRY OUT 4R CHECKS.
3. Install the fan duct to the air guide.
4. Install the chassis support to the oven cavity with three(3) screws.
5. Connect the wire leads to the fan motor and the thermal cut-out,
Shaft
These are the positions
Axis
that should be pinched
with pliers.
Stator
Rotor
Side View
10 – 4
2) Apply the screw lock tight into the hole (for shaft) of the fan
blade.
3) Install the fan blade assembly to the shaft of fan motor by push-
ing the fan blade with a small, light weight, ball peen hammer or
rubber mallet.
CAUTION:
• Do not hit the fan blade strongly when installed because
the bracket may be transformed.
• Make sure that the fan blade rotates smooth after
installed.
• Make sure that the axis of the shaft is not slanted.
referring to the pictorial diagram.
Table
Nois e filter
B lue wire
B rown wire
G reen/ Y ellow wire
R990K(W)
Shaft
Center of
bracket
P ower s upply
cord