TM 9-4120-403-14
Cleaning
(1) Use a clean dry cloth and a soft brush to remove dirt from fan.
(2) If fan and inlet bell are excessively dirty, wash them with a mild detergent and water solution.
Installation
(1) Check that shaft key is in place.
(2) Aline keyway and shaft key and slip fan onto motor shaft.
(3) Aline fan hub flush with end of motor shaft.
(4) With torque wrench, tighten two setscrews to a torque of 70 (t3) inch-pounds.
(5) Secure inlet ring with six screws and washers.
(6) Spin fan by hand and check for any interference between fan and ring. Adjust fan if necessary.
Follow-on procedures:
(2) Install evaporator intake grille assembly. (See para 4-22.)
Change 1
4-138