Toshiba MMU-AP0074YH-E Service Manual page 111

No. Part name
7 Fan motor fan 1. Detachment
1) Perform work of procedure 1. of 2.
2) Remove clamps of the lead wires which are connected to the
following connectors of the control P.C. board.
NOTE
Be sure to unlock the lock of the housing before removing the
connector.
CN333: Fan motor power supply (5P: White)
CN334: Fan motor position detection (5P: White)
3) Remove the hooking claws at both sides of the fan case
(lower) and remove the fan by pulling out it from the partition
board.
4) Loosen hexagon socket head screw of the fan.
5) Remove screws of the fixing bracket while holding the fan
motor, and then remove the fan and the fan motor. Earth
wires of the motor are tightened together.
2. Attachment
1) Insert the fan into the shaft of the motor and screw the fan
motor with the fixing bracket. (Tighten earth lead wires of the
motor together as before.) For the boss of the fan, attach
hexagon socket head screw to shaft of the motor matching
the marked position of the shaft with groove of the fan.
NOTE
Match the rotation direction of the motor with that of the fan, and fix
the fan motor so that the motor lead section comes to the piping
side referring to the right photo.
2) Determine the position so that the fan locates at the center
against the fan case (upper), and then fix the fan with
hexagon socket head screw.
NOTE
For fixation, use a torque wrench and tighten with 4.9 N•m or more.
3) Mount the fan case (lower) as before, and check the fan
smoothly rotates without contacting with fan case.
4) Connect the connectors disconnected in procedure 1.
5) Fix parts as before in order of Electric parts cover ➝ Air
intake grille.
Procedure
110
Remarks
Hooking claw
Relief groove
Earth wires
Pipe side
(Tightening together)
Fixing bracket
Motor lead section
Fan case (Upper)