Toshiba Carrier MMU-AP0182H2UL Service Manual page 128

No. Part name
2. Attachment
Fan, Shaft,
5
Bearing,
1) Mount a fan to the shaft. Refereeing to the
Coupling,
Fan case
(Continued)
2) If mounting of bearing to the shaft is required,
NOTE :
Use a torque wrench for fixing with 1.8 to 2.5 ft . lbs(2.5
to 3.4Nm).
3) Put the shaft which was inserted with the fan
4) Mount the bearing in the main unit as before.
NOTE :
Put into the bearing spacer between base and
cover and then fix the bearing spacer with bolts
(M8, 0.47"(12 mm), 2 pcs.))
5) Fix the coupling with the hexagon socket head
NOTE :
Use a torque wrench for fixing with 3.6 ft . lbs (4.9Nm)
or more.
6) Position the fan so that the fan locates at the
NOTE :
Use a torque wrench for fixing with 3.6 ft . lbs (4.9Nm)
or more.
7) Mount the fan case (top) as before.
8) Carry out works 2) and 3) of Attachment of
Procedure
right photo, arrange the tightening screw at the
right side of the fan against the make-up panel.
On boss of the fan, there is attached a groove
to escape a scratch received when mounting
the hexagon socket head screw to the shaft.
Mount it while aligning scratch of the shaft and
groove of the fan.
Tightening is carried out in the following work.
mount it in the work of 1).
(For only AP036 to AP042 only)
A groove is provided on the shaft in order to
match the mounting position with the bearing.
Mount the bearing by aligning the single face
of bearing to the groove and then fix it with
hexagon socket head screws (2 positions).
into the coupling.
Tightening is carried out in the following work.
screws.
A groove is provided on the shaft in order to
match the mounting position with the coupling.
Mount the coupling by aligning the single face
of coupling to the groove and then fix it.
center against the fan case (top) and then fix it
with the hexagon socket head screws.
Finally, check the fan turns surely and smoothly.
Arrange so that screws are at right side Arrange so that screws are at right side Arrange so that screws are at right side
against the bottom make-up panel. against the bottom make-up panel. against the bottom make-up panel.
Bottom
make-up panel
Shaft groove Shaft groove Shaft groove
2 .
128
Remarks
Escape groove of screw Escape groove of screw Escape groove of screw
Shaft Shaft Shaft
Match the shaft groove and Match the shaft groove and Match the shaft groove and
the end face of bearing and the end face of bearing and the end face of bearing and
then fix the shaft with a then fix the shaft with a then fix the shaft with a
hexagon socket head bolt. hexagon socket head bolt. hexagon socket head bolt.
Bearing Bearing Bearing
Shaft Shaft Shaft
Coupling Coupling Coupling
Shaft groove Shaft groove Shaft groove
Fan case (top) Fan case (top) Fan case (top) Bearing Bearing Bearing
Arrange so that the fan locates Arrange so that the fan locates Arrange so that the fan locates
at the center of the fan case. at the center of the fan case. at the center of the fan case.