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American Dryer Corp WDA-385 G. Tumbler Bearing and Pulley Arrangement, H. Idler Bearing

Models: WDA-385

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G. Tumbler Bearing and Pulley Arrangement

G. Tumbler Bearing and Pulley Arrangement

The tumbler bearing and the pulley arrangement is located (viewing from the rear of the dryer) approximately at the upper center of the dryer. The arrangement consists of a pulley, bearing box, and bearing which serve to adjust, drive, and support the tumbler. The bearing box has various nuts and bolts that are made to adjust the basket vertically and horizontally.

H. Idler Bearing

(Viewing from the rear of the dryer)

The idler assembly is located approximately on the lower left hand side of the dryer. The idler assembly consists of one (1) compound pulley. The idler's main purpose is to reduce the speed and increase the torque provided to the tumbler bearing. Also, the idler assembly belt tension can be adjusted.

I. Motor Assembly

The drive motor is located on the back, approximately lower center of the dryer. It sits on an adjustable base so that the motor can be easily adjusted to the left or right, up or down. The blower end of the motor is connected to the impellor, a backward curved paddle wheel. The impellor provides air flow in the dryer. It creates a vacuum which pulls the hot air from the burner into the basket through the lint screen and out the exhaust. The single phase machine will have plug type motor as shown to the right.

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American Dryer Corp WDA-385 service manual G. Tumbler Bearing and Pulley Arrangement, H. Idler Bearing, I. Motor Assembly

Contents

121396MFM/tf Service ManualADG-385/WDA-385 1996 thru“IMPORTANT NOTE TO PURCHASER” Retain This Manual In A Safe Place For Future ReferenceCHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION VERIFY PROPER OPERATION AFTER SERVICINGDRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYERSFOR YOUR SAFETY Important Information Table of ContentsMaintenance Installation RequirementsTechnical Information Trouble ShootingA. Safety Precautions SECTIONImportant Information Routine Maintenance A. CleaningSECTION C. Lubrication B. AdjustmentsInstallation Requirements A. Enclosure, Air Supply, and Exhaust RequirementsSECTION B. Electrical and Gas Requirements C. Operational Service Check ProcedurePage C. Coin Box and Vault Description of PartsA. Control Panel B. Control BoxD. Main Door Switch E. Lint CoopF. Tumbler I. Motor Assembly G. Tumbler Bearing and Pulley ArrangementH. Idler Bearing K. Sail Switch J. Temperature SensorsL. Motor Contactor 1Ø Motor M. Non-Reversing Contactor 3Ø MotorN. Hi-Limit Thermostat To Replace Control Panel Assembly ServicingSECTION To Replace Keypad refer to illustration above To Replace ComputerTo Replace Coin Acceptor To Remove Optic SwitchTo Replace Microprocessor Temperature Sensor Probe To Replace Motor Contactor 2-Pole, 24VACNOTE DO NOT remove screws A. Burner Controls Gas To Replace Gas Valve To Replace Spark IgnitorTo Test and Adjust Gas Water Column Pressure To Replace Main Burner Orifices See Chart On Following PageNEVER TEST FOR LEAKS WITH A FLAME To Replace Burner TubesB. Thermostats and Temperature Sensor To Replace DSI ModuleTo Replace Hi-Limit Thermostat 330º To Remove The Temperature Sensor or High Heat Protector To Replace Sail Switch C. Sail Switch AssemblyTO REPLACE MAIN DOOR ASSEMBLY STEEL DOOR To Adjust Sail SwitchTo Replace Main Door Switch Steel Door D. Front Panel and Main Door AssembliesTO INSTALL NEW MAIN DOOR GLASS NOTE Identify location of each wire for correct reinstallation To Replace Front PanelE. Tumbler and Bearing Assembly Remove backguard to access assembly To Replace Tumbler PulleyNOTE Check belt alignment before operating dryer To Replace Rear Tumbler Bearing IMPORTANT LOCTITE NOW BEING USEDNOTE Check alignment of pulleys before operating dryer To Replace The Front Tumbler Bearing NOTE Check tension and alignment of belts before operating dryer F. Idler and Bearing AssemblyTo Replace Idler Pulley Remove backguard to access assemblyG. Drive Pulley To Replace Idler BearingTumbler Alignment lateral H. Tumbler basket Tumbler Alignment verticalNOTE Identify location of each wire for correct re-installation To Replace The Tumbler and/or Tumbler SupportREMOVED, A GEAR PULLER MAY BE NECES IMPORTANT LOCTITE NOW BEING USEDLOCTITE ADHESIVE HAS BEEN USED TO SECURE SET SCREWS AND BEARINGS IN PLACE. ONCE SET SCREWS HAVE BEENV-Belt Tension Adjustment-Tumbler To Idler I. V-Belts refer to illustration in Sections I, J and KV-Belt Tension Alignment - Motor To Idler L. Lintscreen To Replace Lintscreen To Replace V-BeltsJ. Motor To Replace Motor K. ImpellerSECTION Trouble ShootingA. Phase 5 Coin System Diagnostics Diagnostic L.E.D. Display Failure CodesMicroprocessor Controller Relay Output L.E.D. Indicators L.E.D. Display IndicatorsNOTE If the dryer is started the L.E.D. display indicator dots are on and there are no outputs heat and/or motor output L.E.D.s are off and the dOOr input L.E.D. is on, the fault is in the Phase 5 coin microprocessor controller computer itself. If the failure was elsewhere i.e., dryers door switch circuit the L.E.D. display would read dOOr if a keyboard entry was attempted. If the L.E.D. display indicators are on and the door L.E.D. input and motor/heat output L.E.D.s are on and the motor and/or heat is not active ON, then the problem is not the door switch circuit or the Phase 5 coin microprocessor controller the problem is else where in the dryer B. No Heat Condition Page C. No Start Condition D. No Display Condition Page E. dSFL Display Condition F. dOOr Display Condition Technical Information A. Data LabelSECTION B. Using A Manometer C. L.E.D. Display Codes D. Computer Logic and Wiring Diagram including ALL revisions of the number listed below B672611 Diagrams for this book are as followsADC450179 1- 01/08/98-502* 05/21/98-50