Hitachi RAS-3.0UFESNH1 - Ducted Fan Motor Removal (3.0 HP)

4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR
Ducted type
3.0HP
Removal and Assembly of Fan Motor
Important: Before removing the fan, make sure the power is off.
Step Illustration
Handling instruction
1. Unplug the motor
cables
Use screwdriver to remove the electric
box cover and unplug the motor cables
in electric box.
2. Remove the base
board
Loosen and take out the screws fixing
the base board, then remove the base
board.
3. Remove the screws on
fan sub-assembly.
Remove the screws on fan
sub-assembly.
4. Removing the fan cage
enclosure
Rotate the fan cage housing toward
supply opening and remove.
5. Loosen the fan,
crosshead and motor.
Use a hex wrench to loosen the screws
holding the fan cage to the motor shaft,
and the screws holding the crosshead
to the motor shaft. Remove outer
housing holding motor in place.
6. Replace the motor
Remove the motor from the support
bracket. Then remove the fan cages
from the motor shafts. Remove the
motor from the air inlet and replace with
new motor. Be sure to tighten the cages
onto the motor shafts.
7. Reassembly of the unit
Reassemble the unit in the reverse
order of disassembly and test operation.
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