American Dryer Corp. ML-145 - Manual (Page 31)

27
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.