Sharp R-953(SL)M Service Manual page 29

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
CAUTION:
• Do not hit the fan blade when installing be-
cause the bracket may be deformed.
• Make sure that the fan blade rotates smoothly
after installation.
• Make sure that the axis of the shaft is not
slanted.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear view
Removal
1. Disconnect the oven from the power supply.
2. Remove the turntable and roller stay from the oven
cavity.
3. Turn the oven over.
4. Cut the three (3) bridges holding the turntable motor
cover to the base plate with cutting pliers as shown in
Figure C-1(a).
CAUTION: DO NOT DROP THE TURNTABLE MOTOR
COVER INTO THE OVEN AFTER CUTTING
THE BRIDGES. BECAUSE IT WILL DAM-
AGE THE WIRE LEADS OF THE MOTOR
AND IT IS DIFFICULT TO REMOVE IT OUT
OF THE OVEN.
5. Remove the turntable motor cover from the base plate.
6. Disconnect the wire leads from the turntable motor.
Bridges
Figure C-1(a). Turntable motor cover removal
CONVECTION MOTOR AND CONVECTION HEATING ELEMENT REMOVAL
1. CARRY OUT 3D CHECKS.
Now,the outer case cabinet and the air duct should
have been removed.
2. Remove the one (1) screw holding the earth wire of the
power supply cord to the back plate.
3. Release the power supply cord from the back plate.
4. Remove the two (2) screws holding the rear barrier to
the base plate.
5. Release the three (3) tabs of rear barrier from the base
plate. And remove the rear barrier.
6. Remove the one (1) screw holding the back plate to the
base plate.
7. Remove the one (1) screw holding the chassis support
to the back plate.
8. Remove the one (1) screw holding the the back plate
to the air intake duct.
Shaft
Axis
Stator
Rotor
Side view
TURNTABLE MOTOR REPLACEMENT
Cutting pliers
Base plate
Turntable
motor cover
R-953/963M - 27
3. Insert the tabs of the fan duct to the back plate.
4. Install the fan duct to the back plate with the one (1)
screw.
5. Re-install the chassis support to the oven cavity with the
four (4) screws.
6. Install the noise filter to the fan duct and the chassis
support with the one (1) screw.
7. Re-connect the wire leads to the fan motor.
These are the positions
that should be pinched
with pliers.
7. Remove the two (2) screws holding the turntable motor
to the oven cavity back plate.
8. Remove the turntable motor from the turntable motor
angle. Now, the turntable motor is free.
Re-install
1. Remove the any sharp edges on the turntable motor
cover and the base plate with the cutting pliers.
2. Re-install turntable motor by locating shaft onto cou-
pling to the oven cavity base plate with the two (2)
screws.
3. Re-connect the wire leads to the turntable motor.
4. Insert the one (1) tab of the turntable motor cover into
the slit of the base plate as shown in Figure C-1(b).
5. Re-install the turntable motor cover to the base plate
with the screw (XHPSD40P08K00) as shown in Figure
C-1(b).
Turntable
motor cover
Tab
Slit
Figure C-1(b). Turntable motor cover re-install
9. Remove the two (2) screws holding the back plate to
the convection duct.
10.Remove the back plate from the oven cavity.
11.Disconnect the wire leads from the convection heating
elements, convection motor and thermal cut-out.
12.Remove the one (1) screw holding the convection duct
to the oven cavity back plate from outside of the oven
cvity.
13.Remove the seven (7) screws holding the convection
duct to the oven cavity back plate from inside of the
oven cvity.
14.Lift up the convection duct and release the three (3)
tabs of the oven cavity back plate from the convection
duct.
15.Now, the convection unit assembly is free.
Shaft
Table Center of
bracket
Screw: XHPSD40P08K00
Base plate