REPLACEMENT - TM-55-1905-223-24-170181

TM 55-1905-223-24-17

(1)

Remove Woodruff key (15) from shaft spline.

(2)

Remove bolt (17) and remove back end bracket (11) and dirt deflector (14).

(3)

Remove fan cover bolt (7) and remove fan cover (2). Remove grease entry tube (4)

from bracket (5).

(4)

Remove fan clamp (24) and remove outer fan (3) from motor shaft (16).

(5)

Remove front end bracket bolt (6) and remove front end bracket (5). Remove washer

(23).

(6)

Remove the shaft (16) and rotor (10) from the motor.

(7)

Make the following measurements and record:

(a) Measure the distance from back bearing (12) to the impeller end of the shaft (16).

(b) Measure the distance from front bearing (22) to the outer fan (3) end of the shaft

(16).

(8)

Use puller and remove bearings (12, 22) from shaft.

b. Assemble motor as follows:

(1)

Install new bearings (12, 22) on shaft (16):

(a) Make sure the collars are facing each other on the shaft.

(b) Refer to measurements recorded and place bearings on shaft in same positions as

old bearings that were removed.

(2)

Install the shaft (16) and bearings (12, 22) assembly into the motor.

(3)

Install washer (23) and front end bracket (5). Install bracket bolt (6).

(4)

Install outer fan (3) on motor shaft and install fan clamp (24).

(5)

Align grease entry tube (4) and install fan cover (2). Install fan cover bolt (7).

(6)

Install back end bracket (11) and dirt deflector (14). Install bolt (17).

(7)

Position Woodruff key (15) in shaft spline.

(8)

Install motor (1) onto fan unit.

REPLACEMENT

a. Position motor (1) on fan unit and install mounting bolts (19).

b. Connect lubricating tubes to grease entries (4, 13).

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