Read Sharp R-959SLMA (serv.man11) Service Manual online
R959(SL)MA
11 – 3
[8] FAN MOTOR REREPLACEMENT
1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the one (1) screw holding the noise filter to the chassis
support.
3. Release the noise filter from the tabs of the fan duct.
4. Remove the three(3) screw holding the chassis support to the oven
cavity front flange, back plate, and the magnetron.
5. Remove the chassis support from the oven cavity.
6. Disconnect the wire leads from the fan duct.
7. Remove the one (1) screw holding the fan duct to the back plate.
8. Release the tabs of the fan duct from back plate.
9. Remove the fan duct from the oven.
10.Remove the fan blade from the fan motor shaft according to the fol-
lowing procedure.
i)
Hold the edge of the rotor of the fan motor by using a pair of
groove joint pliers.
groove joint pliers.
CAUTION: • Make sure that no swarf from the rotor enters the gap
between the rotor & stator of the fan motor.
• Avoid touch the coil of the fan motor with the pliers as
the coil may become cut or damaged.
• Avoid deforming the bracket whilst using the pliers.
ii) Remove the fan blade assembly from the shaft of the fan motor
by pulling and rotating the fan blade with your hand.
iii) Now, the fan blade is free.
CAUTION: Do not re-use the removed fan blade as the fixing hole may
be oversize.
11.Remove the two (2) screws holding the fan motor to the fan duct.
12.Now, the fan motor is free.
2. INSTALLATION
1. Install the fan motor to the fan duct with the two (2) screws and
nuts.
2. Install the fan blade to the fan motor shaft according to the following
procedure.
i)
Hold the centre of the bracket which supports the shaft of the
fan motor on a flat table.
fan motor on a flat table.
ii) Apply the screw lock tight into the hole (for shaft) of the fan
blade.
iii) 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.
mallet.
CAUTION: • Do not hit the fan blade when installing because 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.
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.
[9] TURNTABLE MOTOR REPLACEMENT
1. 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-2(a).
CAUTION: DO NOT DROP THE TURNTABLE MOTOR COVER INTO
THE OVEN AFTER CUTTING THE BRIDGES. BECAUSE
IT WILL DAMAGE THE WIRE LEADS OF THE MOTOR
AND IT IS DIFFICULT TO REMOVE IT OUT OF THE
OVEN.
IT WILL DAMAGE 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 tu Figure C-2(b)rntable motor.
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.
2. REINSTALL
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 coupling 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-2(b).
5. Re-install the turntable motor cover to the base plate with the screw
(XHPS740P08K00) as shown in Figure C-2(b).
Gap
Rotor
Bracket
Stator
Groove joint pliers
Coil
Shaft
Axis
Stator
Rotor
These are the positions
that should be pinched
with pliers.
that should be pinched
with pliers.
Shaft
Table
Center of
bracket
bracket
Rear View
Side View
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