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BLOWER HOUSING
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TM-5-4120-359-14 Air Conditioner Split Package 18 000 BTU/HR Cooling 30 000 BTU/HR Heating 208 Volt 3 Phase 400 Hertz Manual
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EXTENSION SHAFT
TM 5-4120-359-14
b. Removal
(1) Using screwdriver, remove three each screws and flat washers, from outer fan inlet.
(2) Remove the outer fan inlet ring.
(3) Using allen wrench, loosen the two setscrews in the extension shaft.
(4) Slip the fan and extension shaft out of the blower housing.
(5) Using screwdriver and open end wrench, remove the eight screws and lock nuts from the blower housing.
(6) Remove the blower housing and the remaining fan inlet from the mounting plate.
(7) Using screwdriver, remove the three each screws and flat washers.
(8) Remove the fan inlet from the blower housing.
(9) Go back to step (1), and remove the remaining blower housing.
c.
Installation
(1) Using screwdriver, install the inside fan inlet ring on the blower housing with three screws and flat washers.
(2) Using screwdriver and open end wrench, install the blower housing to the base flange with eight each screws
and lock nuts.
(3) Slip the fan and extension shaft on to the motor shaft.
(4) Using screwdriver, install the outside fan inlet ring on the blower housing with three screws and flat washers.
(5) Aline the flat portion of the motor shaft with the setscrews on the extension shaft.
(6) Position the impeller an equal distance between the two inlet rings.
(7) Using allen wrench, tighten the two setscrews.
(8) Spin the fan by hand to be sure there is no interference. If fan rubs, see paragraph 4-23 for fan alinement.
(9) If the blower housing was removed from the opposite side, go back to step (1) and reassemble the other fan.
Follow-on Procedure: Install fan and motor assembly. (See paragraph 4-21.)
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