Instruction/ maintenance manual of the product 20/31 American Dryer Corp.
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Se rvice Procedures for the Model 20/31 D ryers Electric and Hot Surface Ignitor Gas ADC Part No. 450262 American Dryer Corporation 88 Currant Road Fall River MA 02720-4781 USA Telephone: (508) 678-9000 / Fax: (508) 678-9447 e-mail: techsupport@amdry.
T able of Contents Par t Locations and R emo val ........................................ 3 Lower Front Panel Removal ............................................................. 3 Upper Front Panel Removal ...........................................
450262-1 www .amdry .com 3 P ar t Loca tions and R emo val UPPER FRONT PANEL REMOV AL: Remove the four screws located just above the loading door . T ilt the bottom of the panel out and lift the panel up and away from the dryer . LOWER FRONT PANEL REMOV AL: Remove the lint drawer .
4 American Dryer Corp. 450262-1 Remove screws and nuts at the rear of the lint box. Unplug wires from the capacitor . T o remove motorized impellor assembly , remove the five screws and four nuts, shown with arrows. Remove cover and pull the motorized impellor assembly out through the opening.
450262-1 www .amdry .com 5 GAS V A L VE/IGNITION SYSTEM REMOV AL: Be sure to shut off the gas main and then proceed to remove electrical connections and screws indicated. Remove lower front panel. Disconnect union and screws noted with arrows. The gas valve and burner orifice can now be carefully pulled toward the front of the dryer .
6 American Dryer Corp. 450262-1 TUMBLER SUPPORT WHEEL ASSEMBL Y REPLACEMENT : The front wheel assemblies can be replaced with the lower front panel removed.
450262-1 www .amdry .com 7 TUMBLER ALIGNMENT : Proper alignment is achieved by making the gap between the tumbler and openings in the front and rear bulkheads equal on all sides. The front to bulkhead may be checked for accuracy by using a thickness gauge.
8 American Dryer Corp. 450262-1 BEL T REPLACEMENT Shut off electrical power . Disconnect wiring leading to the tumbler support p anel. Remove the back guard, top, and the exhaust support bracket. Unbolt and remove the thrust washers from the rear of the tumbler shaft.
450262-1 www .amdry .com 9 PLACING THE BEL T BACK ON THE MOT OR SHEA VE: REQUIRED ITEMS: 3 foot Section of 1-1/2” Electrical T ubing Replacement Belt T o stretch the belt back onto the sheave involves using a two foot length of 1-1/2” electrical tubing (Fig.
10 American Dryer Corp. 450262-1 Electrical Component Locations ELECTRICAL P ANEL: The electrical panel is located behind the front upper panel. DOOR SWITCH MICROPROCESSOR ROT A TION SENSOR.
450262-1 www .amdry .com 11 ELECTRIC OVEN EXHAUST PROBE, EXHAUST HI-LIMIT , AND LINT DRA WER SWITCH: T emperature probe and exhaust hi-limit are accessible once the lint box is removed. The lint drawer switch can be removed after the cover has been removed.
ADC Part No. 450262 1 - 02/25/05.
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