Toshiba MMY-MUP0801HT8JP Service Manual page 272

No. Part
WARNING
2 Propeller
fan and
Wear a pair of gloves.
Fan motor
Otherwise, you will risk an injury involving a replacement
part or some other object.
1. Detachment
1) Stop the air conditioner operation, and turn off the
circuit breaker.
2) Remove the screws for the top plate.
(M5 × 10, 8 pcs: Front, 3 pcs. Back, 3 pcs. Left and
Right, 1 pcs each.)
3) Remove the flange nut securing the fan motor and
propeller fan.
(To loosen the nut, turn it clockwise.)
4) Remove the square washer.
5) Remove the propeller fan.
CAUTION
Lift it straight up.
Do not forcibly pull it, or it may get stuck.
6) Disconnect the connectors for the fan motor leads from
the Fan IPDU, and remove the fan motor leads.
(Remove the wire clamp and binding band.)
7) Remove the fan motor.
(M6 × 20, 4 pcs )
2. CAUTION for replacement or attachment
1) Insert the propeller fan while aligning the D-cut surface
of the fan motor shaft with the arrow mark (
fan.
(If the propeller fan is tightly mounted on the shaft
without securing alignment between the D-cut surface
and the arrow mark (
and fall off due to friction heat.)
2) Be sure to put the square washer in place.
(Otherwise, unusual noises and vibrations may result.)
3) Tighten the flange nut at a torque of 14.7 N•m.
(To tighten the flange nut, turn it counterclockwise.)
[When attaching two fan motors for 22, 24 HP]
Be sure to attach them to the original positions.
Fan motor 1: Attach it to the left side.
Fan motor 2: Attach it to the right side.
Work procedure
), it may cause the fan to melt
Connect the fan motor connector to the
upper fan P.C. board.
Connect the fan motor connector to the
lower fan P.C. board.
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Remarks
7) Screw for fan motor
5)
6) Fan motor lead
D-cut surface of fan
1)
motor shaft
) on the
Arrow mark (
To be aligned with D-cut surface
2) Top plate
3) Flange nut
4) Square washer
6) Fan motor
connector
) of fan