Mitsubishi Electric Mr.SLIM PLA-SM71EA Service Manual page 43

OPERATING PROCEDURE
6. Removing the electrical box
(1) Remove the electrical box cover (See Photo 1 and 2)
and the connectors (Refer to procedure 5).
(2) Remove the electrical box fixing screws (M5×10: 2
screw). (See Photo 3)
<Electrical parts in the electrical box>
• Terminal block for earth and reactor
• Indoor controller board
• Thermistor (TH)
(3) Remove the electrical box (2 hooks).
7. Removing the turbo fan
(1) Remove the electrical box. (See Photo 3 and refer to
procedure 6)
(2) Remove the bell mouth (tapping screw 4×10: 2
screws). (See Photo 5)
(3) Remove the nut and washer (1 nut). (See Photo 6 and 7)
(4) Remove the turbo fan.
Notes:
• When assembling, make sure that the protrusions on
the turbo fan fit into the holes on the washer.
• Tightening torque for the nut: 4.5 ± 0.5 Nm
Turbo fan
Protrusions
8. Removing the fan motor (MF)
(1) Remove the turbo fan. (See Photo 6 and refer to pro-
cedure 7)
(2) Remove the lead cover (tapping screw 4×10: 2
screws).(See Photo 9)
(3) Loosen the 2 clamps.
(4) Remove the 3 nuts and washers (M5) .
(5) Remove the fan motor.
(6) Remove the 3 rubber mounts.
Figure 3: Partial cross section
Note: When re-attaching the motor mount, make sure that the
thicker end faces the motor shaft.
Fan motor
Rubber mount
OCH683
Washer
Holes
Washer and nut
PHOTOS & ILLUSTRATIONS
Bell mouth fixing screws
Photo 5
Photo 6
Photo 7
Turn this way to tighten.
(The same directions as the fan rotation.)
Photo 8
Photo 9
Lead cover
Clamps
(2 points)
43
Be careful when removing heavy parts.
Bell mouth
Electrical box
Turbo fan
Nut and washer
Turn this way to loosen.
Nuts and washers
Rubber mounts
Fan motor
Lead cover
fixing screws
Coil plate