American Dryer Corp ML-145, ML-170 service manual To Replace Motor Pulley, Tumbler Basket Assembly

IMPORTANT: Tighten screws evenly and progressively. Never allow the sheave to be drawn in contact with the flange of the bushing. This gap should measure from 1/8” to 1/4”. Proper cap screw torque is 15 ft-lbs. (20 Nm). If greater tightening forces are applied, excess pressures will be created in the hub of the mounted sheave which may cause it to crack.

To Replace Motor Pulley

1. Loosen V-belts. Rotate pulley and roll V-belts out of grooves.

2. Remove cap screws from bushing.

3. Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft. Refer to figure “A” on page 25.

4. Remove bushing, pulley, and key.

5.Assemble bushing and sheave as shown in figure “B” on previous page. When cap screws are loosely inserted, bushing remains fully expanded to provide a sliding fit on the shaft.

6.Insert key on the shaft, then slide sheave to desired position with cap screw heads to the outside.

7.Tighten cap screws progressively. There should remain a gap between the sheave hub and the flange of the bushing.

IMPORTANT: Tighten screws evenly and progressively. Never allow the sheave to be drawn in contact with the flange of the bushing. This gap should measure from 1/8" to 1/4". Proper cap screw torque is 6 ft-lbs., (8 Nm) if greater tightening forces are applied, excess pressures will be created in the hub of the mounted sheave which may cause it to crack.

G. TUMBLER (BASKET) ASSEMBLY

Tumbler (Basket) Alignment (Vertical)

(Up and Down Adjustment)

1. Discontinue electrical power to the dryer.

2. Remove back guard.

3. Loosen the two (2) vertical holding bolts on the side at the top of the bearing box (one [1] on each side).

4. Back off jam nuts on vertical adjustment bolts.

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