TM 9-4120-404-14
4-11. EVAPORATOR IMPELLER FANS.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tool Required
Tool Kit, Service, Refrigeration, Unit (Item 1, Appendix B)
Material/Parts Rewired
None
Equipment Condition
Air conditioner shut down and cool.
(1) Loosen set screw (1) and impeller fan (2) from evaporator fan assembly.
(2) Loosen two set screws (3) and remove extension shaft (4) from evaporator fan assembly.
(3) Remove inlet ring (5).
(4) Repeat for other impeller fan if other fan is being replaced.
b. Installation.
(1) Install extension shaft (4) and two set screws (3) to evaporator fan assembly.
(2) Place inlet ring (5) onto extension shaft (4).
(3) Install impeller fan (2) onto extension shaft (4) and loosely tighten set screw (1).
(4) Repeat for other impeller fan.
(6) Center impeller fan (2) in evaporator fan scroll and tighten set screw (1).
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