Whirlpool AAV4000AW Transmission Operation, Determine Brake Rotor Condition, Brake Adjustment

Page 29

Disassembly Procedures

!WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing.

6.Remove Pressure Switch hose, Tub Springs and Outer Tub/Transmission assembly, see “Agitator/ Spinner/Outer Tub/Transmission Removal” procedure steps 13, 14 and 16.

7.Remove screws from sides and rear of unit around bottom, connecting Cabinet to Base. Remove Cabinet from Base and set aside. Be sure to lay down a protective pad before removing Tub and Transmission assembly from Base. Remove Tub and Transmission assembly, turn over and lay on protective pad.

8.Remove Dust Cap, Retaining Ring, Washer, Cam, and Drive Pulley from bottom of Transmission, see “Drive Pully and Cam Removal” procedure.

9.Remove Brake assembly from Transmission, see “Brake Disassembly” procedure steps 4 - 12. Remove old Snubber from Transmission.

10.Install new Snubber, see “Snubber/Brake Assembly” procedure steps 3 - 6. Insure Snubber is centered.

11.Turn new Base upside down and apply grease at bottom of the spring hole pockets to eliminate noise between Spring and Base interaction.

12.Clean the dome area of new Base with alcohol then apply corn starch.

13.Reinstall Motor and Pump to new Base.

14.Transfer Transmission and Outer Tub onto new Base. Attach Suspension Springs using spring tool to avoid over stretching the Springs.

15.Transfer Cabinet shell onto new Base and reassemble Washer. Be sure to reattach Pressure Switch Hose to back of Tub, Drain Pump Hoses with clamps to Drain Pump, and wire harness to Motor. Check all hoses and wires to make sure they are secure.

16.Test Washer.

Transmission Operation

When the Drive Pulley rotates CLOCKWISE, the upper and lower cams are designed to nest together which allows the Drive Pulley to remain in position on the drive shaft. The Break remains engaged and the Drive Pulley will turn the lower cam and drive the shaft to cause the Transmission to agitate.

When the Drive Pulley rotates COUNTERCLOCKWISE, the upper cam and Pulley ride up the lower cam approxi- mately 3/16 of an inch before the driving shoulders on the Pulley hub engage the "dogs" on the lower cam.

This causes the top of the Pulley hub to push against the Spacer which compresses the Brake Spring and lifts the Brake Rotor and Lining assembly off the Brake Stator.

The Brake is disengaged and the Pulley will turn the lower cam and drive shaft to cause the Transmission to spin.

Determine Brake Rotor Condition

Watch the Spacer on the Encapsulated Thrust Bearing. If the Spacer rotates with the Pulley, the Brake is functioning properly. If the Spacer stays stationary while rotating the Pulley to release the Brake, the Brake Rotor must be replaced.

After reassembling the Washer, fill the Tub with water and select a spin to drain the Tub. When the cycle is finished, verify the adjustment of the Brake, and verify the Spacer on the Thrust Bearing rotates with the Pulley.

Brake Adjustment

1.After reassembling the components on the drive shaft, it may be necessary to pull down on the shaft to take the endplay out before the Thrust Washer and Retaining Ring can be reinstalled.

NOTE: Each time the cams are reassembled on the drive shaft, the point in the cam rise where the Brake disengages the Stator should be checked and adjusted as necessary. Reference points have been molded into the Pulley as an aid in checking the point of Brake disengagement.

©2005 Maytag Services

16026502

29

Image 29
Contents Service Important Information Customer Service Support CenterGeneral Information Important Safety Information Proper Grounding and Polarization of 120 Volts Wall Outlets About Ground WiresGeneral Information Related Publications Explanation Grounding InstructionsParts and Accessories ServiceExtended Service Plan Model IdentificationWasher Nomenclature Troubleshooting Procedures Enter Service Mode Exit Service Mode Console Switch Test CON’T Model Code Chart Mechanical Control Version Component Testing Information Mechanical Controls Service Specifications Console Disassembly Disassembly ProceduresDrain Pump/Belt Removal Hinge/Lid Removal Lid Switch RemovalTop Cover Removal Front Panel Removal Water Valve RemovalDispenser Removal Flume/Thermistor Removal Motor RemovalAgitator/Spinner/Outer Tub/Transmission Removal Tub Top RemovalRemove Pressure Switch Hose from fitting on Outer Tub Seal/Transmission Disassembly Drive Pulley and Cam Removal Brake DisassemblySpin Bearing Replacement Tub Seal ReplacementOil Seal Replacement Snubber/Brake AssemblyBase Replacement Installing Thrust BearingDetermine Brake Rotor Condition Brake AdjustmentTransmission Operation To Check Brake Disengagement To Adjust Brake DisengagementThrust Washer Placement Appendix a Maytag Services Automatic Washing Machine U T I O N S Items Included/Articles inclus/Artículos Incluidos Installation/Installation/Instalación Optional/En option/Opcional Stable go to Warm Gurgling Gargouillis Gorgoteo Appendix B 16026502 Washer Recognize Safety Symbols, Words, Labels What You Need to Know About Safety InstructionsRead all instructions before using the appliance Loading DetergentAdditional Tips Operating TipsSelect Water Level Select Wash/Rinse TemperaturePull Control Dial Out to Start Select CycleRegular Cycle No Iron Fabrics CycleQuick Wash Cycle Using the Controls 3 Speed Combo ModelsExtra Rinse Select Options if desiredGetting Started Using the ControlsSoil Level/Time Selection End of Cycle SignalSelect Options Start the Washer Fabric SelectionLiquid Bleach Dispenser Safety SpinFabric Softener Dispenser Automatic Lint Filtering SystemOverload Protector Cleaning the InteriorUnbalanced Spin Load Compensator Troubleshooting 16026502 Use & Care Guide Table of ContentsImportant Safety Instructions Read all instructions before using the appliance Operating Tips Operating Tips Using the Controls 3 Speed Select Models Delicates Cycle End of Cycle Signal select modelsWrinkle Control Cycle Select Wash/Spin Speed Using the Controls 4 Speed Select ModelsWrinkle Control Hot/Cold White and heavily soiled, color-fast Soil Selection Select Options Finger Faucet select models Care & Cleaning Troubleshooting 16026502 Use & Care Guide Important Safety Instructions Read all instructions before using the appliance Select Load Size Select Cycle and Water TemperatureCottons Cycle WRINKLE-FREE Fabrics CycleCycle Time Temps Select WASH/RINSE Temp Using the Controls 3 Speed Combo ModelsSelect Cycle Using the Controls 4 Speed Combo Models Soak Cycle Extra RinseOperating Tips Finger Faucet select models Liquid Dispenser select modelsSpecial Features Troubleshooting 16026502 CW-3 WasherImportant Safety Instructions Read all instructions before using the appliance Small 1/2 Full Medium 3/4 Full Large Wrinkle-Free Clothes Cycle Select Extra Rinse if desiredSelect Signal Using the Controls 3 Speed Combo with Stain Cleaner ModelsRegular/Delicates Cycle Stain Cleaner CycleOperating Tips Liquid Dispenser Stain Cleaner Cycle select modelsCare & Cleaning Fills with the Wrong