Hitachi RAF-25NH4 Données Techniques page 235

(10) Use a minus screwdriver or other such tool to raise the two tabs (see arrows in diagram below) securing the right side of
the heat exchanger, then pull out the heat exchanger towards you.
(11) Pull the lower section of the fan motor support towards you while raising the two levers (tabs) on the left and right of the
upper and lower sides of the fan motor support securing the fan motor, and then remove the fan motor support.
Heat exchanger securing screw
(12) Loosen the screws securing the tangential air flow fan
and the fan motor, and then remove the tangential air flow
fan and the fan motor.
TT CHING
(1) When attaching the tangential air flow fan and the fan motor, insert the axis of the fan motor into the boss of the tangential
air flow fan. Insert the fan support into the boss on the right side of the tangential air flow fan, and then insert into the fan
support securing groove on the cabinet.
(2) Fasten the securing screws of the fan.
Note: Rotate the fan by hand, and check to see that it does not strike the inside section.
Fan securing screw
Fan motor support
Securing tabs (two each on left and right)
254
Fan motor (Upper)
Fan motor (Lower)