REPAIR - TM-55-1905-223-24-170119

TM 55-1905-223-24-17

b. Replace V-belt:

(1) Loosen adjusting nuts (16) and push base plate (10) in, or towards housing, to relieve tension on V-

belt (13).

(2) Remove V-belt (13) from around motor sheave (14) and fan sheave (8). Discard V-belt.

(3) Install a new V-belt on sheaves (8) and (14).

(4) Adjust belt tension. Refer to ADJUSTMENT procedures in this paragraph.

c. Replace fan sheave:

(1) Remove V-belt (13) (REPAIR, step b., above).

(2) Use a puller and remove fan sheave (8) and machine key (9) from straight shaft (7).

(3) Position machine key (9) in straight shaft spline and install new fan sheave (8) onto the shaft with a

hydraulic press.

(4) Install the V-belt (13) (REPAIR, step b. above).

d. Replace alternating current electric motor (15):

(1) Remove motor as follows:

1 Tag and disconnect electrical wiring from motor (15).

2 Remove V-belt (13) (REPAIR, step b.).

3 Use a puller and remove sheave (14) and key (12) from motor shaft.

4 Remove motor mounting bolt, nut, and washer assemblies (11).

5 Remove motor (15) from base plate (10).

(2) Install motor as follows:

1 Position motor (15) on base plate (10) and install mounting bolt, nut and washer assemblies (11).

Do not secure bolts until motor sheave (14) is installed and aligned.

2 Install key (12) and pulley (14) onto motor shaft with a hydraulic

press.

3 Align motor pulley (14) with fan pulley (8).

4 Secure bolt, nut, and washer assemblies (11) firmly.

5 Install V-belt (13) (REPAIR, step b. above).

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