American Dryer Corp ML-145, ML-170 service manual Routine Maintenance, Cleaning

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SECTION II

ROUTINE MAINTENANCE

A. CLEANING

A program and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer, as well as throughout the duct work system. The frequency of cleaning can best be determined from experience at each location. Maximum operating efficiency is dependent upon proper air circulation. The accumulation of lint can restrict this airflow. If the guidelines in this section are met, an ADC dryer will provide many years of efficient, trouble free, and – most importantly – safe operation.

WARNING: LINT FROM MOST FABRICS IS HIGHLY COMBUSTIBLE. THE ACCUMULATION OF LINT CAN CREATE A POTENTIAL FIRE HAZARD.

WARNING: KEEP DRYER AREA CLEAR and FREE FROM COMBUSTIBLE MATERIALS, GASOLINE and OTHER FLAMMABLE VAPORS and

LIQUIDS.

NOTE: Suggested time intervals shown for average usage which is considered six (6) to eight (8) operational (running) hours per day.

Clean lint drawer and screen every third or fourth load.

NOTE: Frequency can best be determined at each location.

DAILY

(beginning) of each work shift.

Clean lint from the drawer and screen. Inspect lint screen and replace if torn.

WEEKLY

Clean lint accumulation from lint chamber, thermostat, and microprocessor temperature sensor (sensor bracket) area.

WARNING: To avoid the hazard of electrical shock, discontinue electrical supply to dryer.

STEAM DRYERS

Clean steam coil fins using compressed air and a vacuum cleaner with brush attachment.

NOTE: When cleaning steam coil fins, be careful not to bend the fins. If fins are bent, straighten by using a fin comb which is available from local air conditioning supply houses.

90 DAYS

Remove lint from tumbler (basket), drive motors, and surrounding areas. Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment.

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Contents American Dryer Corporation ML-145 / ML-170Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Section Technical Information Important Information Safety PrecautionsStandards Cleaning Routine MaintenanceLubrication AdjustmentsInstallation Requirements ENCLOSURE, AIR SUPPLY, and Exhaust RequirementsElectrical and GAS Requirements Operational Service Check Procedure Gas 10.5 inches water column 26.1 mb Control Panel Microprocessor Description of PartsControl Panel NON-MICROPROCESSOR Control BOXHSI HOT Surface Ignition Module GAS Burner AssemblyGas Models only Drive MotorIdler Assembly Blower Motor and Impellor GAS and SteamTumbler Basket Bearing and Pulley Arrangement Main Door Switch Sail Switch Gas Models onlyTumbler Basket Automatic Reset Thermostat HI-LIMIT Gas Models onlyLint Drawer Temperature Sensor Bracket NON-COMPUTER Lint Drawer SwitchSteam Damper System Compressed AIR RequirementsIntroduction ServicingComputer Controls To Replace ComputerTo Replace Microprocessor Temperature Sensor Probe To Replace Keyboard Touchpad Label AssemblyTo Remove Flame Probe Assembly Ignition ControlsTo Replace Gas Valve Refer to above burner illustration To Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Replace Burner Tubes To Convert from Natural Gas to L.P. GasTo Replace HSI Hot Surface Ignition Module ThermostatsTo Replace Burner Hi-Limit Thermostat Gas Models Only To Replace Sail Switch Sail Switch Assembly Gas Models onlyTo Replace Main Door Assembly To Adjust Sail SwitchTo Replace Front Panel To Install New Main Door GlassTo Replace Main Door Hinge Blocks PulleysTo Replace Tumbler Basket Pulley To Replace Large Idler Pulley To Replace Small Idler PulleyTumbler Basket Assembly Tumbler Basket Alignment Vertical Up and Down AdjustmentTo Replace Motor Pulley To Replace Tumbler Basket or Tumbler Basket Support Tumbler Basket Alignment Lateral Side to Side AdjustmentImportant Never strike the shaft directly with a hammer To Replace Front Idler Shaft Pillow Block Bearing To Replace Front Tumbler Basket Support Pillow Block BearingBelt Tension Adjustment Tumbler Basket to Idler To Replace Rear Idler Shaft Pillow Block BearingBelts Refer to illustrations in section F Pulleys To Replace V-Belts Belt Tension Adjustment Motor to IdlerMotors To Replace Drive MotorImpellor To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint ScreenComputer will not accept keyboard touchpad entries TroubleshootingDisplay is reading no Airflow Display is reading Rotation Sensor FailDisplay is reading Drum Safety Fail Display is reading Sail Switch FailDisplay is reading Burner Safety Fail Display is reading No HeatDisplay is reading Burner Flame Failure Display is reading Burner Control FailureDisplay is reading Main Door Display is reading Lint DoorDisplay is reading Hot Dryer operates but is taking too long to dryThermal overload for drive motor is tripping There is excessive vibration coming from the tumbler basket Overload for impellor fan motor is trippingElectrical Troubleshooting Diagnostic L.E.D. light emitting diode Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. light emitting diode Display IndicatorsE.D. Display Indicator Number FAN Blower Output L.E.D. light emitting diode Indicator AIR AIR JET Output L.E.D. Indicator OptionalHT1 Heat Output L.E.D. Indicator Lint Lint Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler Basket HI-LIMIT Input L.E.D. IndicatorPower Supply Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. IndicatorE.D. Display Operating Status D. DISPLAY/CODESPhase 6 OPL Microprocessor L.E.D. Displays ALL REV E.D. Codes 1. Display CodesGAS Models only Power 24 VAC is not Evident AT GAS Valve GAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT CircuitGAS only Ignition Attempt Failure Computer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs No Heat Drive and Blower Motors Run Steam Models No Heat Drive and Blower Motors Run Gas ModelsDoor Condition Motor Plate High and LOW Voltage Technical InformationInformation on the Data Label Data LabelHow to Use a Manometer Using a ManometerML-170 Tool List ADC 450429 1- 02/18/00-25