R-27STMA (serv.man11). Component Replacement And Adjustment Procedure - Sharp Home Appliance Service Manual (repair manual). Page 3

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R27STMA
11 – 3
7. Remove the TTM packing from the turntable motor.
8. Now, the turntable motor is free.
2. REINSTALL
1. Re-install the TTM packing to the turntable motor.
2. Re-install the turntable motor with the TTM packing with the single
(1) screw to the oven cavity bottom plate.
3. Re-connect the wire leads to the turntable motor.
4. Insert the tab of the turntable motor cover into the hole of the bot-
tom plate.
5. Re-install the turntable motor cover to the bottom plate with one (1)
screw.
                        Figure C-2. TTM packing Installation
[8] COOLING FAN MOTOR REMOVAL
1. REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the fan motor.
3. Remove the two (2) screws holding the fan motor to the oven cavity
back plate.
4. Remove the fan blade from the fan motor shaft according to the fol-
lowing procedure. 
5. Hold the edge of the rotor of the fan motor by using a pair of groove
joint pliers.
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 EASY TO BE
SHAVEN BY PLIERS AND METAL PIECES MAY BE PRO-
DUCED.
DO NOT TOUCH THE PLIERS TO THE COIL OF THE
FAN MOTOR BECAUSE THE COIL MAY BE CUT OR
INJURED.
DO NOT DISFIGURE THE BRACKET BY TOUCHING
WITH THE PLIERS.
6. Remove the fan blade from the shaft of the fan motor by pulling and
rotating the fan blade with your hand.
7. Now, the fan blade will be free.
CAUTION: DO NOT RE-USE THE REMOVED FAN BLADE
BECAUSE THE HOLE (FOR SHAFT) MAY BE LARGER
THAN NORMAL.
8. Now, the fan motor is free.
2. INSTALLATION
1. Install the fan blade to the fan motor shaft according to the following
procedure.
2. Hold the center of the bracket which supports the shaft of the fan
motor on the flat table.
3. Apply the screw lock tight into the hole (for shaft) of the fan blade.
4. 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.
CAUTION: DO NOT HIT THE FAN BLADE STRONGLY WHEN
INSTALLED BECAUSE THE BRACKET MAY BE TRANS-
FORMED.
MAKE SURE THAT THE FAN BLADE ROTATES
SMOOTH AFTER INSTALLED.
MAKE SURE THAT THE AXIS OF THE SHAFT IS NOT
SLANTED.
5. Install the fan motor assembly to the oven cavity back plate with
two (2) screws. 
6. Connect the wire leads to the magnetron and fan motor, referring to
the pictorial diagram.
TTM packing
Turntable motor
Gap
Rotor
Bracket
Stator
Groove joint pliers
Coil
Shaft
Axis
Stator
Rotor
These are the positions
that should be pinched
with pliers.
Shaft
Table
Center of
bracket
Rear View
Side View
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