To Replace Large Idler Pulley | American Dryer Corp AD-170 instruction

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., 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 Large Idler Pulley

1. Loosen V-belts. Then, rotate pulley and roll V-belts out of grooves.

2. Remove cap screws.

3. Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft.

See Figure "A" on previous page.

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. 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. See figure "A" on previous page.

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American Dryer Corp AD-170 service manual To Replace Large Idler Pulley, To Replace Motor Pulley

Contents

AD-170 AD-170 Retain This Manual In a Safe Place For Future ReferencePage For Your Safety Table of Contents Sail Switch Assembly Important Information Safety Precautions Cleaning Routine Maintenance Lubrication Adjustments Enclosure, Air Supply, and Exhaust Requirements Installation Requirements Electrical and Gas Requirements Operational Service Check Procedure DSI Module Gas Models Only Computer Panel AssemblyDescription of Parts Control Box Blower Motor and Impellor 50Hz, 60Hz Steam & 50Hz Gas Gas Burner AssemblyDrive Motor Blower Motor and Impellor Hz Gas Models Only Tumbler Bearing and Pulley Arrangement Idler AssemblyBasket Tumbler Sail Switch Gas Models only Main Door SwitchHi-Limit Gas Models Only Steam Damper System Automatic Reset ThermostatLint Drawer Switch Lint Drawer Introduction Servicing Computer Controls To Replace Computer To Replace Keyboard Label Assembly To Replace Microprocessor Temperature Sensor Probe Page To Replace Main Burner Orifices To Replace Gas Valve see burner illustration on To Test and Adjust Gas Water Column Pressure To Convert from Natural Gas to L.P. Gas To Replace Burner Tubes To Replace DSI Module Sail Switch Assembly Gas Models Only To Adjust Sail Switch To Replace Sail Switch To Install New Main Door Glass To Replace Main Door Assembly To Replace Main Door Hinge Pad To Replace Front Panel To Replace Small Idler Pulley Pulleys To Replace Tumbler Pulley To Replace Motor Pulley To Replace Large Idler PulleyPage To Replace Tumbler Basket or Tumbler Basket Support Basket Alignment Lateral Side to Side Adjustment Important Never strike the shaft directly with a hammer To Replace Front Idler Shaft Pillow Block Bearing To Replace Front Basket Support Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block Bearing Belt Tension Adjustment Basket to IdlerBelts See illustrations in section F Pulleys To Replace V-Belts Belt Tension Adjustment Motor to IdlerMotors To Replace Drive Motor Page To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint ScreenImpellor No display on computer TroubleshootingComputer will not accept key pad entries Drive motor runs, burner is on, but basket will not turn Dryer will not start, but computer display indicators are on Dryer operates but is taking too long to dry Dryer operates, probe sparks, but gas does not flow Thermal overload for drive motor is tripping Dryer is cycling on burner hi-limit safety thermostatOverload for impellor fan motor is tripping Dryer does not start. Display reads door Display reads dSFL. Dryer Sensor Circuit FailureThere is excessive vibration coming from the basket Electrical Trouble Shooting Diagnostic LED Display Failure Codes Phase 5 OPL System Diagnostics LED Display Indicators Page Page Cycle Status LED Display/Codes CY F LED Display Codes Fill Computer Logic and Wiring Diagram Fault CodesPage No Display Condition Page Blower motor does not operate, drive motor runs Door condition Microprocessor reads Dsfl Motor Plate High and Low Voltage Technical Information Information on the Data Label Data Label Contacting American Dryer Corporation ADC HOW to USE a Manometer Using a Manometer AD-170SE Tool List ADC450400 1- 02/27/98-50