450412-4 www.amdry.com 15
Tumbler Wheel Replacementon Drive Assembly
Discontinue electrical power to the dryer.
Remove front panel from dryer. (Follow front panel
replacement directions on page 14.)
Remove the 10 1/4-20 x 1/4” socket button head screws
from the perforated basket side.
Remove wrapper assembly.
Loosen V-belt. Rotate pulley and V-belt out of the groove.
Block the tumbler assembly in position.
Remove the setscrew from the 9-inch (22.86 cm) pulley.
Remove the pulley and key.
Mark the position of pillow block bearing then remove the
bolts from the pillow block bearings.
Remove the drive shaft assembly through the front of the
machine.
NOTE: A gear pulley may be required to remove the
pulley.
Remove cap screws from bushing.
Insert cap screws in the tapped removal holes and tighten
evenly until bushing becomes loose on shaft.
Remove the bushing, tumbler wheel, and key.
Reverse this procedure for replacement.
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 30 ft-lb (41 Nm).
If greater tightening forces are applied, excess pressure
will be created in the hub of the mounted sheave, which
may cause it to crack.
Tumbler Wheel Replacementon Idler Assembly
Disconnect electrical power to the dryer.
Remove the front panel from the dryer. (Follow front panel
replacement directions on page 14.)
Remove the 10 1/4-20 x 1/4” socket button head screws
from the perforated basket side.
Remove the wrapper assembly.
Block the tumbler assembly in position.
Mark the position of the pillow block bearings. Then remove
the bolts from the pillow block bearing.
Remove the idler shaft assembly through the front of the
machine.
Remove the cap screws from bushing.
Insert cap screws in the tapped removal holes and tighten
evenly until bushing becomes loose on shaft.
Remove the bushing, tumbler wheel, and key.
Reverse this procedure for replacement.
Basket Assembly Adjustment
NOTE: Dryer must be level prior to tumbler alignment.
Discontinue electrical power to the dryer.
Remove the perforated tumbler panel.
Remove wrapper panel to access the drive and idler shaft.
Place a level on the shafts to verify if level.
Measure distance between tumbler and wrapper 1/2” to
3/4” gap should be derived.
Loosen the 8 bolts on the pillow block bearings and turn
the adjustment screw clockwise or counterclockwise to
increase or decrease the gap between the tumbler and
wrapper.
Measure the length of the adjustment bolts and all should
be equal.
Place a level on the shaft to verify it is level if any adjustment
has been made.