American Dryer Corp MLS-460 manual

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3.Tumbler and Basket Drive System

There are two (2) 5 HP (3.73 kw) tumbler (basket) drive motors. Each motor drives one of the 2-inch (5.08 cm) diameter tumbler (basket) drive shafts, and the motors spin simultaneously so that ALL four (4) sets drive wheels work together to spin the tumbler (basket).

Each motor is connected to the drive shaft by two (2) “A” section V-belts, driving a shaft-mounted (5.6 to 1 ratio) gear reducer. This produces a tumbler (basket) shaft speed of 200 RPM to 205 RPM and a tumbler (basket) speed of 31.5 RPM. Proper tension is maintained on the V-belts by tightening the gear reducer turnbuckle support. The oil in each gear reducer must be replaced every six (6) months by 1.4 liters of I.S.O. viscosity Grade 460 gear oil.

4.Servicing the Drive System

a.Removing a Drive Wheel

The drive wheels are removed through the front and back panels of the dryer, not through the slides. The front loading door and back loading door panels are hinged at the top. Remove the bolts holding these panels to tumbler (basket) section frame and swing the panel out. The two (2) 1/4-inch (0.08 cm) poly-flo tubes connected to the LOAD door piston have to be removed to allow the panel to swing up far enough out to get access to the drive wheels. Likewise, the following electrical disconnections must be performed (refer to page 33).

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Contents MLS-460 Installation/Operator’s Manual Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Service Power MalfunctionsMotors Section Important InformationSafety Precautions Explosion could ResultPage SPECIFICATIONS/DIMENSIONS SpecificationsDimensions Installation Procedures Reassembly of DryerReattach The Control Pendant Arm Reassembly Instructions For Dryers Shipped In Three 3 Pieces Page Location Requirements Internal AIR, ELECTRICAL, and Water Connections Air Front Tilt Piston and Sprinkler LinesPage Temperature Probe, Base, and Tumbler Basket Disconnects Electric Tumbler Basket MotorsPage Pendant Tumbler Basket Junction Box Disconnect Left Drum MotorExternal Supply Connections Condensate return line must be 1-1/4 pipe Exhaust Ducting Page Electrical Requirements Electrical RequirementsLatest Edition Electrical Service Specifications MLS-460 SteamPage Fresh AIR Supply Requirements Steam Information Steam RequirementsShut Down Instructions PRE START-UP Preparation for OperationRoutine Maintenance CleaningSuggested Cleaning Schedule Clean any lint accumulation from inside the heat consoleMonthly Component System Descriptions Tumbler Basket Support and Drive SystemPage Page Main AIR Blower and Heat Reclaimer System Heat Reclaimer Adjustment Remove Electricity from the Unit Compressed AIR System Page Safety Devices Door Open SERVICE/PARTS Information ServiceParts Warranty Information Returning Warranty CardsWarranty Returning Warranty PartsPage Troubleshooting Troubleshooting Table of Contents NumberPower Malfunctions Verify red Sprinkler Power on main panel to be illuminatedMain Disconnect Will Not Turn On If NO, refer to paragraph #1 above Machine Main Power Shuts Down Blue Indicator Off Sprinkler circuit may be defective3CR CRB Not Used Sprinkler Circuit ComponentsSprinkler Circuit Description Page Emergency Stop E-Stop Buttons 1, 2, Malfunctioning PLC Programmable Logic ControllerPage PLC Message HI-TEMP Fault General DescriptionPage Page Tumbler Basket Section Electrical Malfunctions IntroductionDrum Rotation Sensor PRS1 Rear Panel Control Problems Emergency Stop E-Stop Function If YES, refer to a If NO, refer to b PLC OUT PIN 1 = Drum Reverse PLC OUT PIN 2 = Drum Forward PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UP Wiring Back the PLC Programmable Logic Controller DS1-B=LOAD Door Switch DS2-B=UNLOAD Door SwitchProbable Solutions Base Section Electrical Malfunctions Lint Drawer Proximity Switches Wiring Back to the PLC Programmable Logic ControllerPage Probable Causes Pendant Control Malfunctions Load Level Unload Tumbler Reverse Tumbler ForwardSEL a = Load SEL B = Unload Tumbler Reverse Pendant --- PB2Tumbler Forward Pendant --- PB1 Fuse 4 on Main Electrical Panel Faulty Switches Wiring Back to PLC Programmable Logic ControllerMLS-460 Pendant Assembly Diagram Wiring DiagramTemperature Sensing Disconnect Plug Faulty Switch Wiring Back to TB1Another Emergency Stop E-Stop Button Temperature Sensing Component Descriptions Exhaust RTD Resistive Temperature Device Sens1With the control voltage OFF Circuit Wiring to the Analog Input Module MotorsVerify current setting Check circuit Check motor Retest LS-460 Idling LS-460 Running ADC113073 1- 01/14/00-15