REMOVAL - TM-55-1905-223-24-170230

TM 55-1905-223-24-17

REMOVAL

WARNING

Make sure electrical power is off to avoid personal injury.

a. Tag and disconnect electrical wiring to motor jack box (21).

b. Disconnect lubricating tubes from grease entries (4, 14).

Remove mounting bolts (20).

d. Remove the motor (1) from the fan unit.

DISASSEMBLY

a. Remove Woodruff key (16) from shaft spline.

b. Remove bolts (18) and remove back end bracket (12) and dirt deflector (15).

Remove fan cover bolts (7) and remove fan cover (2). Remove grease entry tube (4), from bracket

(5).

d. Remove fan clamp (25) and remove outer fan (3) from motor shaft (17).

e. Remove front end bracket bolts (6) and remove front end bracket (5). Remove washer (24).

f.Remove the shaft (17) and bearings (13, 23) assembly from the motor.

g. Make the following measurements and record:

(1) Measure the distance from back bearing (13) to the impeller end of the shaft (17).

(2) Measure the distance from front bearing (23) to the outer fan (3) end of shaft (17).

h. Use a puller to remove the bearings (13, 23) and inner caps (19, 22) from shaft.

i. Remove rotor (11) and spline key (26) from shaft with the puller from tool kit.

j. Remove the machine screws (8) that mount the stator (10) to motor housing (9).

Remove stator (10) from inside motor housing (9).

REPAIR

Repair consists of replacing motor bearings (13, 23), shaft (17), rotor (11), and stator (10).

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