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Фрагмент инструкции
Proper cap screw torque is 30 ft.-lb. 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 Discontinue electrical power to the dryer. Remove the lint drawer. Remove the lint door. Loosen V-belts, then rotate pulley and roll V-belts out of its’ grooves. Remove cap screws from bushing. Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft. Refer to figure “A” on the previous page. Remove bushing, pulley, and key. Assemble bushing and sheave as shown in figure “B” on the previous page. When cap screws are loosely inserted, bushing remains fully expanded to provide a sliding fit on the shaft. Insert key on the shaft, then slide sheave to desired position with cap screw heads to the outside. 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.-lb., if greater tightening forces are applied, excess pressures will be created in the hub of the mounted sheave, which may cause it to crack. Tumbler Alignment Discontinue electrical power to the dryer. Remove the lint drawer. Remove the lint door. Remove both the left hand and right hand lint coop walls. Loosen the V-belts on drive shaft, then rotate pulley and roll V-belts out of its’ grooves. Tighten the two bolts under the drive shaft clockwise to raise the tumbler and counterclockwise to lower the tumbler. The bolts should be tightened in even increments in order to ensure that the shaft runs parallel with the base of the dryer. IMPORTANT: Side to side adjustment of the tumbler should be equal on either side of the front panel, but vertically the top of the tumbler should have a larger gap than the bottom to compensate for the load. Be sure to tighten the left idler side to the same height as the right side/drive side. This length can be determined by taking measurements from the bottom of each pillow block bearing to the top of the bearing pad. NOTE: If the axle height is not the same on the drive and idler side, then the tumbler will be either more to the right or left side, depending on which axle is higher. Tighten locking nuts on the adjustment bolts. Reverse the first five steps for reassembly. Check tumbler drive belt for proper tension. Adjust if necessary. Reestablish electrical power to the dryer. Bearings To Replace Drive/Idler Shaft Pillow Block Bearings Discontinue electrical power to the dryer. Remove the lint drawer. Remove the lint door. Loosen and roll V-belts off that connect speed reducing shaft to drive shaft. Place a piece of wood between the tumbler and wrapper to support the tumbler when shaft is removed. Remove the four bolts holding the drive shaft assembly in the dryer. Remove cap screws from bushing of drive wheel. Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft. Remove bushing and key. Remove wheel from shaft. Loosen the four setscrews in the pillow block bearings. 16 American Dryer Corporation 450431-3 450431-3 17 Remove the four bolts holding the two speed reducing shaft pillow block bearings in place and remove shaft assembly from dryer. To remove front or rear pulley follow steps in “To Replace Drive Shaft Pulleys”. Loosen and remove the two setscrews in the front/rear pillow block bearing. Clean the shaft and slide the bearings off of the shaft. Install new bearing by reversing these procedures. Reestablish electrical power to the dryer. Rotational Sensor Switch Replacement Discontinue electrical power to the dryer. Remove the bearing cap from the dryer. Remove the adjustment nut from the bearing cap. Remove the magnetic rotational sensor switch from the bearing cap. Depress the tabs on the rotational sensor harness plug and pull apart, then remove the sensor switch. To install a new sensor switch, connect the plug of the new sensor switch to the sensor harness. Place one adjustment nut onto the sensor switch and insert into the bearing cap. Place the second adjustment nut on but do not tighten. The magnet on the flange bearing and the sensor switch must be in a horizontal line to one another. The gap between the magnet and the sensor switch must be 1/8-inch. Tighten the adjustment nuts installed. Reestablish electrical power to the dryer. Clean the shaft and slide the pillow block bearings off of the shaft. Reverse these steps to install new pillow block bearings. NOTE: Check belt adjustment and readjust if necessary. To Replace Speed Reducing Shaft Bearings Discontinue electrical power to the dryer. Remove the lint drawer. Remove the lint door. Loosen and roll V-belts off that connect speed reducing shaft to drive shaft. Loosen and roll V-belts off that con...
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