REPAIR - TM-55-1905-223-24-170185

TM 55-1905-223-24-17

(6)

Install impeller onto fan shaft (15).

(7)

Install nosepiece (2) onto impeller.

e. Replace bearings (9, 18), bushings (8, 13), and fan shaft (15).

(1)

Disassemble parts as follows:

(a) Remove impeller (3) with bushing (4) (REPAIR, step d., above).

(b) Remove impeller end cover (5).

(d) Remove fan sheave (12) from fan shaft (15).

(e) Remove mounting bolts from bearings (9, 18) and slide the shaft and bearings

assembly from the fan drum (6).

(f) Remove bearings (9, 18) and collars (14, 17) from fan shaft (15).

(g) Remove bushings (8, 13) from bearings (9, 18).

(2)

Assemble parts as follows:

(a) Install new bushings (8, 13) in bearings (9, 18).

(b) Install collars (14, 17) and bearings (9, 18) onto fan shaft (15).

mounting bolts.

(d) Install fan sheave (12) onto fan shaft (15).

(e) Install drive end cover (11) with bolts and washers (10).

(f) Install propeller end cover (5).

(g) Install impeller (3) and bushing (4) (REPAIR, step d., above).

Install electric motor (1) and V-belt (19) (paragraphs 2-25 thru 2-27).

g. Install ventilating fan (paragraph 2-26).

h. Operational check:

(1)

Turn electrical power ON.

(2)

Start and run fan to check operation.

(3)

Remove "Out of Service" tag from circuit.

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