ADC ML-82 To Replace Piston, To Replace The Needle Valve, To Replace the 3-Way Micro Valve

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To Replace Piston

1.Discontinue electrical power to the dryer.

2.Discontinue the air supply to the dryer.

3.Remove left and right piston supports by removing two (2) washers and hex nuts and slide pin out.

4.Remove 1/8” M.P.T. connector from the piston and remove acorn nut on the end of piston shaft (this will be used on new piston).

5.Reverse procedure for installing new piston.

To Replace The Needle Valve

1.Discontinue electrical power to the dryer.

2.Discontinue the air to the dryer.

3.Remove the 1/8” brass close nipple from the needle valve.

4.Remove the 1/8” M.P.T. connector from the needle valve.

5.Remove the needle valve.

6.Reverse procedure to install new needle valve.

To Replace the 3-Way Micro Valve

1.Discontinue electrical power to the dryer.

2.Discontinue the air to the dryer.

3.Remove inlet side of air from the 3-way valve.

4.Remove the two (2) 1 inch machine bolts and mounting hardware holding the 3-way valve to the bracket.

5.Remove the 1/8” brass close nipple from the outlet side of the valve.

6.Remove valve.

7.Reverse procedure to install new micro valve.

To Replace Steam Coil

1.Shut off steam supply line to the dryer and run dryer to remove any condensation.

2.Discontinue electrical power to the dryer.

3.Break union at flexible hose just before the steam coil at both inlet and outlet.

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Contents ML-82 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section SERVICE/PARTS Information Important Information Safety PrecautionsStandards Specifications SPECIFICATIONS/COMPONENT IdentificationSpecifications MLG-82 Gas MLS-82 Steam Component Identification Page Cleaning Routine MaintenanceLubrication AdjustmentsDescription of Parts Control Panel AssemblyDoor Switch Assembly Lint Drawer Lint Drawer SwitchTemperature Sensor Bracket Assembly Basket and Support AssemblyTumbler Bearing Assembly DRIVE/FAN Mount Assembly Idler ARM AssemblyBlower Motor Sail Switch Assembly HSI HOT Surface Ignition Burner BOX AssemblyFront Panel Assembly Reversing Relay Panel Introduction ServicingTo Replace Computer Board To Replace Keyboard Label AssemblyTo Replace Microprocessor Temperature Sensor Probe Computer ControlsHSI Ignitor Flame Sensor Probe Ignition ControlsTo Remove Hot Surface Ignitor To Remove Flame Sensor ProbeTo Replace Gas Valve Refer to burner illustration on To Test and Adjust Gas Water Column PressureTo Replace Main Burner Orifices To Convert Natural Gas to L.P. Gas To Replace HSI Module To Replace Burner TubesTo Replace Burner HI-LIMIT Thermostat GAS Models only Sail Switch Assembly GAS Models only To Adjust Sail Switch To Replace Sail Switch To Install New Main Door Glass To Replace Main Door AssemblyTo Replace Main Door Hinge Block To Replace Front PanelTo Replace Steam Coil Damper System Steam Controls InstallationTo Replace Steam Coil To Replace PistonTo Replace The Needle Valve To Replace the 3-Way Micro ValveTo Replace Tumbler Pulley Reversing Tumbler and Bearing AssemblyTo Replace The Rear Tumbler Bearing To Replace Idler Bearing Idler Shaft and Bearing AssemblyTo Replace The Front Tumbler Bearing To Replace Idler PulleyTumbler Basket Drive PulleyTumbler Alignment Vertical To Replace The Tumbler And/Or Tumbler Support Tumbler Alignment LateralBelts Refer to Illustrations in Sections I and K Belt Tension Adjustment-Tumbler To IdlerTo Replace V-Belts Belt Tension Alignment Motor To IdlerDiagnostic L.E.D. Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. Light Emitting Diode Display IndicatorsPage Fuse Main Fuse Input L.E.D. Indicator FAN Blower Output L.E.D. light emitting diode IndicatorAIR AIR JET Output L.E.D. Indicator Optional HT1 Heat Output L.E.D. IndicatorSail Sail Switch Input L.E.D. Indicator Lint Lint Door Input L.E.D. light emitting diode IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler HI-LIMIT Input L.E.D. IndicatorPower Supply Input L.E.D. Indicator E.D. Codes GAS only Ignition Attempt Failure Fault CodesGAS Models only Power 24 VAC is not Evident AT GAS Valve GAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT CircuitComputer will not accept keypad touchpad entries TroubleshootingDryer operates but is taking too long to dry Drive motor runs, burner is on, but basket will not turnThermal overload for drive motor is tripping Overload for impellor fan motor is tripping Burner hi-limit safety thermostat is trippingThere is excessive vibration coming from the basket Electrical Troubleshooting Drive motor reverses but does not forward, blower motor runs No Display ConditionLint Door Condition Blower motor does not operate, drive motor runsTemp Sensor Fail Check Main Door ConditionMotor Plate High and LOW Voltage Technical InformationFor example Contact American Dryer Corporation Data LabelAmerican Gas Association, Canadian Gas Association Data Label Model DryerManual Reset HI-LIMIT Instructions Computer Logic Service SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationReturning Warranty Parts Page ML-82 Tool List ADC 450404 1- 12/21/99-50