Whirlpool AAV4000AW User Manual

Service

This manual is to be used by qualified appliance technicians only. Maytag does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.

Top Load Washer

AAV4000AW* AAV7000AG* AAV7000AJ* AAV7000AK* AAV7000AW* AAV8000AG* AAV8000AJ* AAV8005EW* AAV9000AG* CAV1004AW* CAV2004AJ* CAV2004AK* CAV2005AW* CAV4004AG* CAV4004AW* CW5500*

CW6500* CW9505* HAV1200AR* HAV1200AW* HAV4200AK* HAV4200AT* HAV4200AW* MAV1655AW* MAV1755AW* MAV208DAW* MAV2755AJ* MAV2755AW* MAV2757AW* MAV275SAW* MAV308DAW*

This Base Manual covers general information.

Refer to individual Technical Sheet

for information on specific models.

This manual includes, but is

not limited to the following:

MAV3757AW* MAV3758AW* MAV3855AG* MAV3855AK* MAV3855AW* MAV385SAW* MAV3905AW* MAV3955EW* MAV408DAW* MAV4755AW* MAV4757AW* MAV4758AW* MAV551EEW* MAV5758EW* MAV5920AG*

MAV5920EW* MAVT236AW* MAVT346AW* MAVT446AW* MAVT546EW* NAV2335AJ* NAV2335AW* NAV3335AW* NAV5805AW* NAV8805EW* PAV2755AA* PAV3855AA* PAVT910AW* PAVT915AW* PAVT920AW*

16026502

December 2005

Important Information

Important Notices for Servicers and Consumers

Maytag will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however , that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO

REVIEW ALL APPROPRIATE SERVICE INFORMA TION BEFORE BEGINNING REPAIRS.

To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoid electrical shock.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact:

WARNING

Customer Service Support Center

CAIR Center

Web Site Telephone Number

WWW.MAYTAG.COM ............................................. 1-800-688-9900

WWW.AMANA.COM ................................................ 1-800-843-0304

CAIR Center in Canada ........................................... 1-800-688-2002

Amana Canada Product ........................................... 1-866-587-2002

Recognize Safety Symbols, Words, and Labels

DANGER!

DANGER—Immediate hazards which WILL result in severe personal injury or death.

WARNING!

WARNING—Hazards or unsafe practices which COULD result in severe personal injury or death.

CAUTION!

CAUTION—Hazards or unsafe practices which COULD result in minor personal injury, product or property

damage.

Important Information .................................................... 2

Important Safety Information ......................................... 4

General Information

Model Identification .................................................... 7

Serial Label Location ................................................. 7

Model Nomenclature.................................................. 8

Troubleshooting

Troubleshooting General Symptoms .......................... 9

Troubleshooting (Electronic Controls) .......................10

Troubleshooting (Mechanical Controls) .....................14

Component Specifications

Component T esting Information (Electronic)..............15

Component T esting Information (Mechanical)............16

Service Specifications...............................................17

Disassembly Procedures

Console Disassembly ...............................................18

Drain Pump/Belt Removal .........................................19

T op Cover Removal ...................................................20

Hinge/Lid Removal ....................................................20

Lid Switch Removal ..................................................20

Water V alve Removal ................................................21

Dispenser Removal ...................................................21

Front Panel Removal.................................................21

Motor Removal ..........................................................22

Flume/ThermistorRemoval.........................................22

Tub T op Removal .......................................................23

Agitator/Spinner/Outer Tub/T ransmissionRemoval ....23

Tub Seal/Transmission Disassembly ........................25

Drive Pulley and Cam Removal..................................26

Brake Disassembly...................................................26

Tub Seal Replacement ..............................................27

Spin Bearing Replacement ........................................27

Oil Seal Replacement ...............................................27

Snubber/Brake Assembly .........................................27

Installing Thrust Bearing ...........................................28

Base Replacement ...................................................28

Transmission Operation ............................................29

Determine Brake Rotor Condition .............................29

Brake Adjustment .....................................................29

Check Brake Disengagement ...................................30

T o Adjust Brake Disengagement...............................30

Appendix A

Installation Instructions........................................... A-1

Appendix B

Use & Care Information........................................... B-1

Important Safety Information

when required. Do not do it yourself unless you know

how! To reduce the risk of fire, electric shock, serious injury or death to persons when using your washer, follow these basic precautions:

• Read all instructions before using the washer.

• Refer to the Grounding Instructions in the Installation

Manual for the proper grounding of the washer.

• Do not wash articles that have been previously

cleaned in, washed in, soaked in, or spotted with gasoline, dry-cleaning solvents, or other flammable or explosive substances as they give off vapors that could ignite or explode.

• Do not add gasoline, dry-cleaning solvents, or other

flammable or explosive substances to the wash water. These substances give off vapors that could ignite or explode.

• Under certain conditions, hydrogen gas may be

produced in a hot water system that has not been used for two weeks or more. Hydrogen gas is explosive. If the hot water system has not been used for such a period, before using a washing machine or combination washer-dryer, turn on all hot water faucets and let the water flow from each for several minutes. This will release any accumulated hydrogen gas. The gas is flammable, do not smoke or use an open flame during this time.

• Do not allow children to play on or in the washer.

Close supervision of children is necessary when the washer is used near children. This is a safety rule for all appliances.

• Before the washer is removed from service or

discarded, remove the lid to the washing compartment.

• Do not reach into the washer if the wash tub is

moving.

• Do not install or store the washer where it will be

exposed to water and/or weather.

• Do not tamper with the controls.

• Do not repair or replace any part of the washer , or

attempt any servicing unless specifically recommended in the User-Maintenance instructions or in published user-repair instructions that you understand and have the skills to carry out.

• To reduce the risk of an electric shock or fire, do not

use an extension cord or an adapter to connect the washer to the electrical power source.

• Use your washer only for its intended purpose,

washing clothes.

• Always disconnect the washer from electrical supply

before attempting any service. Disconnect the power cord by grasping the plug, not the cord.

• Install the washer according to the Installation

Instructions. All connections for water , drain, electrical power and grounding must comply with local codes and be made by licensed personnel

• T o reduce the risk of fire, clothes which have traces of any flammable substances such as vegetable oil, cooking oil, machine oil, flammable chemicals, thinner, etc. or anything cont aining wax or chemicals such as in mops and cleaning cloths, must not be put into the washer. These flammable substances may cause the fabric to catch on fire by itself.

• Do not use fabric softeners or products to eliminate static unless recommended by the manufacturer of the fabric softener or product.

• Keep your washer in good condition. Bumping or dropping the washer can damage safety features. If this occurs, have your washer checked by a qualified service person.

• Replace worn power cords and/or loose plugs.

• Be sure water connections have a shut-off valve and that fill hose connections are tight. Close the shut-off valves at the end of each wash day .

• Loading lid must be closed any time the washer is in operational fill, tumble, or spin. Do not attempt to bypass the loading lid switch by permitting the washer to operate with the loading lid open.

• Always read and follow manufacturer’s instructions on packages of laundry and cleaning aids. Heed all warnings or precautions. T o reduce the risk of poisoning or chemical burns, keep them out of the reach of children at all times (preferably in a locked cabinet).

• Always follow the fabric care instructions supplied by the garment manufacturer.

• Never operate the washer with any guards and/or panels removed.

• Do not operate the washer with missing or broken parts.

• Do not bypass any safety devices.

• Failure to install, maintain, and/or operate this washer according to the manufacturer’s instructions may result in conditions which can produce bodily injury and/or property damage.

NOTE: The Warnings and Important Safety Instructions

appearing in this manual are not meant to cover all possible conditions and situations that may occur. Common sense, caution and care must be exercised when installing, maintaining, or operating the washer.

Always contact your dealer , distributor, service agent or the manufacturer about any problems or conditions you do not understand.

Important Safety Information

T o avoid personal injury or death from improper servicing, make sure you read and understand the descriptions and meaning of various safety symbols, words and labels used in this manual, before attempting any procedures described in the manual. Failure to understand and comply with safety information may result in severe personal injury or death.

General Information

This Service Manual describes the operation, disassembly , troubleshooting, and repair of the washer. It is intended for use by authorized technicians who troubleshoot and repair these units.

NOTE: It is assumed that users of this manual are

familiar with the use of tools and equipment used to troubleshoot and repair electrical, and mechanical systems; and understand the terminology used to describe and discuss them.

About Ground Wires

In the event of an electrical short circuit, a ground wire reduces the risk of electric shock by providing an escape wire for the electric current. St andard accepted color coding for ground wires is green or green with a yellow stripe. Grounding wires and wires colored like grounding wires are NOT to be used as current carrying conductors.

To reduce the risk of fire, electric shock, serious injury or death, all wiring and grounding must conform with the latest edition of the National Electric Code, ANSI/ NFP A 70, or the Canadian Electrical Code, CSA C22.1, and such local regulations as might apply . It is the customer’s responsibility to have the wiring and fuses checked by a qualified electrician to make sure your home has adequate electrical power to operate the washer.

Related Publications

This is a base service manual, covering a range of similar models. It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering the specific model being serviced.

Electrical Service Information

Proper Grounding and Polarization of 120 V olts W all Outlets

For the safety of our customers and the Service T echnician, ALL appliances have a three–prong power cord and MUST be connected to a properly polarized AND grounded wall outlet. This information was written for those who do not understand grounding and polarization of a wall outlet. A 120 volt wall outlet must always be wired as shown below.

Ground

Neutral

V.A.C.

Neutral side

115±12

V.A.C.

T o avoid risk of personal injury or death due to electrical shock:

• Observe all local codes and ordinances.

• Disconnect electrical power to unit before servicing.

• Ground appliance properly.

• Check with a qualified electrician if you are not sure this appliance is properly grounded.

• DO NOT ground to gas line.

• DO NOT ground to cold water pipe if pipe is interrupted by plastic, nonmetallic gaskets, or other insulating (nonconducting) materials.

• DO NOT modify plug on power cord. If plug does not fit electrical outlet, have proper outlet installed by qualified electrician.

• DO NOT have a fuse in the neutral or ground circuit. A fuse in the neutral or ground circuit could result in an electrical shock.

• DO NOT use an extension cord with this appliance.

• DO NOT use an adapter plug with this appliance.

• DO NOT pinch power cord.

Round grounding

115±12

V.A.C.

prong

Important Safety Information

Explanation Polarization–This means that the larger slot must be

neutral and the small slot must be at line voltage. Mispolarized–The outlet is incorrectly wired so that the larger slot is at line voltage and the smaller slot is neutral. Grounded–This means the round hole connection is connected to earth ground through a connection to the main power panel. Ungrounded–The round hole connection is not complete to earth ground and/or the main power panel.

Grounding Instructions

• To avoid the risk of electrical shock or death, do not alter the plug.

• Do not remove grounding prong when installing grounded appliance in a home that does not have three wire grounding receptacle. Under no condition is grounding prong to be cut off or removed. It is the personal responsibility of the consumer to contact a qualified electrician and have properly grounded three prong wall receptacle installed in accordance with appropriate electrical codes.

• To avoid the risk of electrical shock or death, this equipment must be grounded.

This equipment MUST be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This unit is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded. Consult a qualified electrician or technician if grounding instructions are not completely understood, or if doubt exists as to whether the equipment is properly grounded. Do not use an extension cord. If the product power cord is too short, have a qualified electrician install a three-slot receptacle. This unit should be plugged into a separate 60 hertz circuit with the electrical rating as shown in the appropriate drawing. Models operate with a supply voltage of 120 Volt s.

General Information

Model Identification

Complete registration card and promptly return. If registration card is missing:

• For Maytag product call 1-800-688-9900 or visit the Web Site at www .maytag.com

• For product in Canada call 1-866-587-2002 or visit the Web Site at www .mayt ag.com.

When contacting provide product information located on rating label. Record the following: Model Number: ___________________ Manufacturing Number: ___________________ Serial or S/N Number: ___________________ Date of purchase: ___________________ Dealer’s name and address: ___________________

Service

Keep a copy of sales receipt for future reference or in case warranty service is required. T o locate an authorized technician:

• For Maytag call 1-800-462-9824 or visit the Web Site at www.maytag.com.

• For product in Canada call 1-866-587-2002 or visit the Web Site at www .mayt ag.com.

Warranty service must be performed by an authorized technician. We also recommend contacting an authorized technician, if service is required after warranty expires.

Parts and Accessories

Purchase replacement parts and accessories over the phone. T o order accessories for your product call:

• For Maytag product call 1-800-462-9824 or visit the Web Site at www .mayt ag.com.

• For product in Canada call 1-866-587-2002 or visit the Web Site at www .mayt ag.com.

Extended Service Plan

We offer long-term service protection for this new washer .

• Dependability Plus specially designed to supplement Maytag’s strong warranty . This plan covers parts, labor , and travel charges. Call 1-800-925-2020 for information.

Extended Service Plan is

Serial Label is located on the back of the unit and on top of the Console.

General Information

A A

Washer Nomenclature

A = Admiral M = Maytag

P = Performa

C = Crosley N = Amana H =

Hoover

AV = Automatic Vertical

XXXX = Feature Package

This identifie s which version of production the unit is.

W White Q Bisque K

Metallic Blue

G Generic Europe 220-240V-60 Hz J K 220V-60 Hz (2 wire) R 220V-50 Hz T 208/240V-60 Hz W 120V -60 Hz (for US) Y 240V-60 Hz (for US) Z Canada 240V-60hz

ustralia 220-240V-50 Hz

Troubleshooting and Diagnostic Guide is located inside the Console.

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

WARNING

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

Noisy and/or Vibration/Walking

• Check for proper installation and leveling of unit.

• Legs properly adjusted and locked with no damage.

• Stabilizer rear legs secure and locking properly (not

jamming).

• Pads on feet of leveling legs.

• Solid and secure flooring.

• Check condition of belt.

• Check transmission pulley for correct Thrust Bearing

adjustment.

• Check transmission for spin bearing noise.

• Check center tub seal.

• Check agitator for correct installation.

• Check the suspension springs are properly installed

and lubricated.

• Check for loose screws on the cabinet.

• Check base is flat against floor.

Over Fill

• Check water pressure to washer is 20 PSI minimum.

• Disconnect power cord. Replace Water Valve if it

continues to flow.

• Check Pressure Switch for proper operation.

• Check Pressure Switch air hose for leaks damage or

Finger Faucet

Wrong Water Temperature

Will Not Spin/Spin Speed Too Slow

obstruction.

• Faucet will not operate with washer set to Hot/Cold.

• Run the Service Cycle to verify water temperatures.

• Check that both faucets are turned on fully.

• Make sure water heater is set to deliver a minimum

of 120°F (49°C) hot water at the tap. Also check water heater capacity and recovery rate.

• If the water heater is located a long distance from washer, the water line may need to be purged prior to starting wash cycle.

• Check for reversed inlet hoses at the faucet or water valve.

• Check wiring at the Water Valve, Timer, and ATC.

• Check power supply to washer is between 108V to

132V with a load on the circuit.

• Check slow spin speed is not selected.

• Refer to Service Cycle and check spin speeds.

• Check condition of drive belt.

• Check drain system in the home is functioning

properly.

• Check for blocked or kinked drain hose.

• Check for binding Tub Seal.

• Check brake is disengaging properly.

• Check between tubs for something contacting

spinner.

• Check for proper adjustment of the Thrust Bearing.

• Check for broken impeller on Drain Pump.

• Perform Torque Test.

• When washer passes all checks place a one pound

unbalance weight in washer and check for 600 RPM. If washer fails check brake and cam adjustments. Replace Transmission if brake and cam adjustments are ok.

Will Not Run or Start

• Plug cord into live electrical outlet. Check for proper voltage.

• Check fuse or reset circuit breaker.

• Check water supply is working.

• Check water valve connections are good.

• Check the line filter and water valve filter.

• Check if Lid Switch is functional. Lid must be closed

before washer will operate.

• Check Control Board is operating properly.

• Check drive motor is operating properly.

• Check for a blown thermal fuse.

• Check for obstructions in Drain Pump.

• Turn transmission pulley by hand. If locked in

agitation direction, replace transmission.

• Power supply to washer is between 108V and 132V during a load on circuit.

No Water Fill

• Check to make sure water supply is turned on fully.

• Check electrical circuit and connections at the Water

Valve, and Pressure Switch.

• Check for kinks in inlet hoses.

• Check for clogged inlet screens.

•

Check Water Valves separately for fill.

• Check for low water pressure. May be dependent on pressure entering home. Variations may occur due to usage in the home at the time machine is used.

• Check for frozen pipes and hoses.

• Check resistance of Water Valve coils.

• Check for loose connections at the Pressure Switch

or on the Machine Control Board

Will Not Drain

• Check for restricted drain system.

• In cold climates check for frozen drain hose.

• Check tub to pump hose for twist in hose.

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

! WARNING

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

ENTER SERVICE MODE

Rotate the Cycle Selector Knob to the “Power Off”

position and press knob.

(All LED ’s will be of f).

Rotate th e C ycle Selector Knob clockwise past

“Power Off” twi c e and stop at “Regular”.

(LED’s will illuminate as the knob is rotated).

Rotate the Cycle Selector Knob counterclockwise

one revolutio n back to “Regular” and press knob.

•

Power Off, Rinse & Spin LED will blink (if error codes are present). Regular LED will be illuminated.

•

Model I.D . is displayed by the LED’s around the bottom of the dial.

•

Model I. D. c an be redis played whil e i n Ser vice Mode by settin g kn ob t o “

pressing

•

Refer to chart for Model I.D.

Handwash

” and

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

WARNING

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

EXIT S ERVIC E MODE

Rotate Cycle Selection Knob to “Po wer Off” and press

Allow 5 minutes of inacti vi ty .

knob.

or or

Disc onnect powe r

DISPLAY/CLEAR SERVICE CODES

CONSOLE SWITCH TEST

Enter Service Mode then set Cycle Selection Knob to

•

Rinse & Spin LED will blink if codes other than power interrupt are present.

•

Press kno b to view codes. Press once for each code. Cod es are displayed newest to oldest. Machine beeps three times after last service code is displayed.

•

To clear codes display a code th en Cycle Selection Knob until machine beeps twice. Rinse & Spin LED stops blinki ng.

•

Refer to chart for Service Codes.

“Rinse & Spin”. Press knob

press

and

hold

Enter Service Mode then set Cycle

Selec tion Knob to “

•

Power Of f LE D blinks .

•

Pause and Delicates LED’s ar e illuminated.

Delicate

knob.

” and

press

Rota te the Cycl e Selecti on K n ob clockw is e for ascend ing, and counter clockwise for decending test mode. Rotate 32 clicks in the same dire c tion to complete th e test.

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

! WARNING

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

CONSOLE SWITCH TEST CON’T

Press

the Cycle Sel ection Knob to acti vate

the te st for the rotary switches . The test

begins with the rotary switch imediately to

the lef t of the Cy c le S e l ec tion Knob .

Rota te th e s wi t c h in either directio n. The

LED’ s illuminate arou nd the bottom of the

SERVICE CYCLE

Cycle Selection Knob for ea ch switch

NOTE:

Any a ttempt to move a knob or

Press

the Cycle Sel ection Knob. The te st

continue s with the switch immed iately to

the left of the previous switch tested. Repeat rotating the switch and monitoring the LED’s around the bottom of the Cycle

Selection Knob. Continue

Cycle Selection Knob for ea ch switch

tested right to left until l all rotary switches

NOTE:

The Water Level Switch is not

•

After the last rotary switch is te sted the next time the Cyc le S e le c tion Knob is pressed the test will conti nu e with the rocker switches. Continue the Cycle Selec tion Knob an d tes ting switches until the last switch is tested. When all switches have been tested

Complete

the “

Enter Ser v ice Mode then set Cyc le Select io n K no b t o

•

Fill and Wash LED’s illum in ate. Hot water fill.

•

Press

water fill.

•

Press

Selected wash temperature fill.

•

Press

•

Press kno b Was h LED blinking. Fast agi t a t io n.

•

Press

•

Press knob Spin LED blinking. Fast spin.

•

Press

•

Press knob exit back to Service Mo de.

NOTE:

Regular

“

knob Fill and Rinse LED’s illuminate. Cold

knob Fill, Wash, and Rinse LED’s illumin ate. knob Wash LED illuminates . S lo w ag itatio n. knob Spin LED il luminate s . Slow spi n . Knob Comp l e t e LED illumi nates.

Fills are skipped if Pressure Switch is satisfi ed.

Press knob until Pause LED begins blinking to paus e c yc l e .

posit i o n.

swit c h other than th e on e being tested results in a chirp sound.

pressing

are te sted.

included in this test .

” LED will illumi na te.

the

pressing

press

” and

knob.

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

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

Codes displayed but not listed here should be ignored.

DIAGNOSTIC CODE CHART

Service Code Description

Model ID Unknown, Default model of 31 used 31 Rotary Switch 3 left of encoder failed at startup

Rotary Switch 2 left of encoder failed at startup Rotary Switch 1 left of encoder failed at startup 25

Incorrect rotary switch position seen Fill time less than 2 seconds Fill time exceeded 18 minutes

Motor Thermal protector opened Motor Thermal protector opened more than

5 times du ring a cycle Thermistor Possible Short

WARNING

Service

Code

28 26

24 22

21 19

18 17

Fill

Soak

ete

Pause

Compl

Spin

Rinse

Wash

Thermistor Possible Open Thermistor out of range Power Failure detected No code

16 15

1 0

MODEL CODE CHART

Model Numbers MAV546E

MA V5920 AGW (INT) MAV508DE, MA V551E MAV5758, MAV58 58

MAV5920E NAV8805

Fill

Wash

Soak

Rinse

Spin

ete

Compl

Pause

Troubleshooting Procedures

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

CAUTION

All safety information must be followed as provided in the Service Manual.

! WARNING

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

Mechanical Control Version.

Noisy and/or Vibration/ W al king

• Check for pr oper installation and leveling of unit.

• Legs properly adjusted and locked with no damage.

• Stabilizer rear legs secure and locking properly (not

jamming).

• Solid and secure flooring.

• Check con d i t ion of belt.

• Check transmission for spin bearing noise.

• Check ce nt e r tub seal.

• Check agitator for correct installation.

• Check the suspension springs are properly installed and

lubricated.

• Check for loose screws on the cabinet.

• Check for damaged bas e .

Over Fill

• Check water pressure to washer shou ld be a 20 PSI minimum.

• If water drips into machine while off, replace valve.

• Disconnect power cord. Replace Water Valve if it

continues to flow.

• Check Pressure Switch for proper operation.

• Check Pr essure Switch air hose for leaks damage or

Wrong Water Temperature

Will Not Spi n/Spin Speed Too Sl ow

obstruction.

• Check that both faucets are turned on fully.

• Make sure water heater is set to deliver a minimum of

120°F (49°C) hot water at the tap. Also check water heater capacity and recovery rate.

• Check for reversed inlet hoses at the faucet or water valve.

• With tub empty, select normal wash no ATC and Cold/Cold temperature setting. Let washer fill and check fill time and full tub temperature.

• Select normal wash no ATC and hot water temperature setting. Let washer fill and check fill time and full tub temperature. For extended wait time for hot water fill, instruct to purge water line for a hot wash.

• Select normal wash no ATC and Warm/Cold water temperature setting. Let washer fill and check fill time and full tub temperature.

• Check wiring at the Water Valve, Timer, and ATC.

• Check power supply to washer is between 108V to

132V with a load on th e circuit.

• Check for out of balance cl othes load.

• Check slow spin speed is not selected.

• Check con d i t ion of drive b el t .

• Check drain system in the home is functioning properly.

• Check for blocked or kinked drain hose.

• Check for binding Tub Seal .

• Check brake is disengaging properly.

• Chec k mo tor slide and spring for proper movement.

• Check between tubs for something contacting spinner.

• Chec k for proper adjustme nt of the Thrust Bear ing.

• Check for broken impeller on Drain Pump, washer

should drain all water within 90 seconds.

• When wa sher passes all checks place a o ne pound unbalance weight in washer and check for 600 RPM. If washer fails, check brake and cam adjustments. Replace Transmission if brake and cam adjustments

Motor Not Running

No Water Fill

Will Not Drain

are ok.

• Check power supply to washer is between 108V and 132V during a load on circuit.

• Check if Lid Switch i s functional. Li d must be closed before washer will operate.

• Check voltage going into, and out of timer to start and run windings, per ladder diagram.

• Check for 120 volts to start and run winding at mo t or per ladd er diagram .

• Check for a blown motor thermal fuse.

• Check for obstructio ns in Drain Pum p.

• Turn tr ansmission pu l ley by ha nd. If locked in agitation

direction, replace transmission.

• Check to make sure water supply is turned on fully.

• Check electrical circuit and connections at the Water

Valve, and Pressure Switch.

•

Check for kinks in inlet hoses.

• Check for clogged inlet screens and water valve screens.

• Check Water Valves separately for fill.

• Check for low water pressure. May be dependent on

pressure entering home. Variations may occur due to usage in the home at the time machine is used.

• Check for frozen pipes and hoses.

• Check hot and cold water valve voltage for 120 volts.

• If washer fills and drains at the same time, check for

drain hose siphoning.

• Check for restricted dr ain system.

• In cold climates check for frozen drain hose.

• Check for broken impeller on Drain Pump. Washer

should drain all water within 90 seconds.

• Chec k mo tor slide and spring for proper movement.

Component Testing Information

WARNING

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

Electronic Controls

Resistance and voltage checks of components listed below can be made at PS5 on the control board. Note: When making resistance checks on the components listed below, washer must be unplugged and PS5 connector disconnected from control board.

R E H S A

W C

I T S E

M O D

11 13

3 5 7 9

GY GY BK WH OR

VIEW “A”

PS5

(EXPORT ONLY)

L Y

H S

1 7

GY OR YL PU PK

GY BK WH

3 5

S P

5 1

HI/LO

SPEED

E3R

8 S

456 PS1

CONTROL BOARD

START

DIRECTION

RE2

2 1 S P

H W

U B

PS6

9 S P

S P

R B

1234

U B

PS4

/ H W

L Y

12345

9 8

4567PS2 23

Illustration Component Test Procedure Results

AC Power

Lid Switch

With t he unit plugged in, check source voltage at Pin #15

WH and Pin #13 BK of PS5 on t he control board...............

With t he unit plugged in,

check voltage at Pi n #5 YL and Pin #15 WH of PS5..........

120 V AC

Pressure Switch

Motor

Water Valves

With uni t plugged in and the tub empty,

check voltage at Pin #3 OR and Pin #15 WH of PS5.........

Unplug washer, disc onnect harness at PS5 and tes t from wire insertion side of harness.

Run winding - PS7 GY and Pin #5 YL of PS5.....................

Start winding - PS9 BU and PS10 RD................................

Unplug washer, disconnect harness and test resistance from wire insert ion side of harness.

(Hot valve) Pin #9 PK of PS5 and Pin #3 OR of PS5 ..........

(Cold valve) Pin #7 PU of PS5 and Pin #3 OR of PS5........

(Thermistor) Pin #1 GY and Pin #11 GY of PS5.................

120 V AC

1.5 ohms

4.0 ohms without capacitor

1120 ohms 1120 ohms 53000 ohms @ 70F

Component Testing Information

WARNING

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

Mechanical Controls

Illustration Component Test Procedure Results

1 Speed Motor CCW rotation when

viewed from shaft end.

1/2HP 120V/60hz

Water valve 120V 50/60hz, 5

watts Cold Side 2.25 gpm, Hot Side 2.00 gpm, Mix 3.00 gpm at 20-120 psi

Refer to Technical Dat a Sheet section “Internal Motor Diagram” and “Schematic” for wiring contacts.

Measure resistance of terminals on each valve.

Resistance across each valve.................................................

1000 Ω ± 10%

Drain Pump

Verify Drain Pump is not clogged or damaged.

Lid Switch Disconnect wire terminals from sw itch.

Test terminals with switch closed..............................................

Test terminals with switch open. ..............................................

Timer

Verify input and output voltage is present

Pressure Switc h Do not disconnect t he pressure hose from pressure switch t o

perform measurements . Measure resist ance across the following terminals.

Terminal 1 to 2................................................ .........................

Terminal 1 to 3..........................................................................

Continuity >1Ω

Infinite 1MΩ

Refer to timing sequence chart on appropriate Technical Data Sheet.

Refer to Technical Data Sheet for wiring diagram & schematic for correct contacts.

Continuity >1Ω Infinite

1MΩ

Service Specifications

ATC (Automatic Temperatur e Control) Models

Model Control Type Description Temperatures

MAVT346AWW MAV3757AWW MAV3758AWW MAV308DAWW MAV3905AWW

MAV3955EWW AAV8005EWW

Mechanical

Energy Star temps, but not Energy Star rated. Electro-mechanical washer with Automati c Temperature Control shall have full tub water temperatures as follows:

Energy Star rated. Electro-mechanical washer with Automati c Temperature Control shall have full tub water temperatures as follows: (There shall be no warm r inse on Energy Star models)

Cold 58°±8° F Warm 85°±8° F Hot 115°±8° F

MAVT446AWW MAV4757AWW MAV4758AWW MAV4755AWW MAV408DAWW CW9505W

MAVT546EWW MAV5758EWW MAV5920EWW MAV551EEWW NAV8805EWW

MAV5920AGW

Mechanical

Electronic

Standard Electro-mechanical washer with Aut omatic Temperature Control shall have full tub water t emperatures as follows: (Where applicable, warm ri nse is not controlled.)

Energy Star rated. Electronic washer with Automatic Temperat ure Control shall have full tub water temperatures as follows: (There shall be no warm r inse on Energy Star models)

Electronic washer with Automatic Temperat ure Control shall have full tub wash water t emperatures as follows: (Warm Ri nse temperature shall be 80°±5° F)

Cold 75°±8° F Warm 95°±8° F

OR Cold 58°±5° F

Warm 85°±5° F

Cold 58°±5° F Warm 85°±5° F Hot 115°±5° F

Cold 70°±5° F Warm 90°±5° F Hot 125°±5° F

Fabric Selection Soil Level - Approximate Agitation Times, in minutes

Light Normal Heavy Extra Heavy

Quick Wash

Gentle/Fast

Hand Wash

Ex. Gentle/Slow

Delicates

Gentle/Slow

Permanent Press

Medium/Slow

Regular

Medium/Fast

Whites & Towels

Normal/Fast

2 4 6 8

Intermittent

6 9 12 15 9 12 15 21 9 15 18 24 9 15 18 24

Agitation Speeds

Gentle 58 opm (oscillations per minute) Ex. Gentle Intermittent 58 opm Medium Cycles between 3 minutes at 88 opm and 3 minutes at 58 opm Normal 88 opm

Spin Speeds

Fast Spin 620 +/- 25 rpm (revolutions per minute) Slow Spin 413 +/-17 rpm

Disassembly Procedures

WARNING

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

Console Disassembly

1. Disconnect power supply to unit.

2. Remove Cycle Selector Knob and Switch Knobs.

3. Remove three screws along the top of the Console and roll the Console forward.

5. Disconnect all wiring harness connectors from the Circuit Board.

NOTE: W ear an Anti S t atic Wrist S trap and ground

yourself before working with Electronic Control Boards. Always handle boards by the edge and don’t touch discreet components.

6. Depress the PCB locking t ab and remove Circuit Board.

4. Disconnect and remove Rocker Switches from Console.

7. Remove Switches by lif ting locking t ab and rotating Switch to align with hole molded in Console.

Disassembly Procedures

WARNING

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

8. Remove Pressure Switch Hose and wiring connector from Pressure Switch.

9. Lif t Pressure Switch locking tab and rot ate switch to remove.

10.Remove Facia from Console.

NOTE: There will be water remaining in the hose from

the last cycle.

4. Remove Belt.

Drain Pump/Belt Removal

1. Disconnect power supply to unit.

2. Remove back Cover.

3. Remove Drain Hose Clamp s .

NOTE: There will be water remaining in the hose from

the last cycle.

5. Remove three screws retaining Drain Pump.

Disassembly Procedures

WARNING

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

T op Cover Removal

1. Disconnect power supply to unit.

2. Insert a plastic putty knife between the Top Cover and Front Panel. Press the locking clip to release the Top Cover . Repeat for both sides. Support lid with free hand and rotate top until it comes to rest on hinge stop.

Hinge/Lid Removal

1. Disconnect power supply to unit.

2. Lif t Top Cover, see “Top Cover Removal” procedure.

3. Remove Hinge screw on each side.

5. Remove Lid Switch S triker by removing screw from the Lid side.

Lid Switch Removal

1. Disconnect power supply to unit.

2. Lif t Top Cover, see “T op Cover Removal” procedure.

3. Remove two screws retaining Lid Switch.

4. Remove Lid Switch from housing.

4. Remove Hinge from Pivot Post.

Disassembly Procedures

WARNING

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

Water V alve Removal

1. Disconnect power supply to unit.

2. Lif t Top Cover, see “top Cover Removal” procedure.

3. Remove retaining screw on back p anel.

4. Lif t W ater Valve to align with cutout in back cabinet.

Dispenser Removal

1. Disconnect power supply to unit.

2. Lift Top Cover, see “T op Cover Removal” procedure.

3. Relieve tension on Dispenser retaining t ab.

Front Panel Removal

1. Disconnect power supply to unit.

2. Lift Top Cover, see “T op Cover Removal” procedure.

3. Remove two screws, 1 each side on Front Panel top edge.

Disassembly Procedures

WARNING

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

Motor Removal

1. Disconnect power supply to unit.

2. Lif t Top Cover, see “Top Cover Removal” procedure.

3. Remove Front Panel, see “Front Panel Removal” procedure.

4. Remove Motor ground wire.

5. Remove Motor Shield.

Flume/Thermistor Removal

1. Disconnect power supply to unit.

2. Remove Console, see “Console Disassembly” procedure.

3. Remove Flume screw from top of Top Cover.

4. Lif t Top Cover, see “T op Cover Removal” procedure.

5. Remove two Flume ret aining screws from bottom of Top Cover.

6. Remove Motor wire harness connector.

6. Remove hose clamp and Flume/Diverter Hose.

7. Remove three screws ret aining Motor to Base.

Disassembly Procedures

WARNING

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

Tub Top Removal

1. Disconnect power supply to unit.

2. Lif t Top Cover, see “Top Cover Removal” procedure.

3. Press down on T ub Top and swing locking latch away from Outer Tub. Repeat for all latches

4. Remove T ub Top.

Agitator/Spinner/Outer T ub/T ransmission Removal

1. Disconnect power supply to unit.

2. Remove Drain Pump hoses and Belt, see “Drain Pump/Belt Removal” procedure steps 1 - 4.

3. Lif t Top Cover, see “Top Cover Removal” procedure.

4. Remove Tub Top, see “Tub Top Removal” procedure.

5. Unsnap Fabric Softener Dispenser from Agitator .

6. Remove screw located in the center of the Agitator/ Auger assembly .

7. Remove Agit ator Auger from Agitator Base.

8. Lift Agitator Base from Washer.

Disassembly Procedures

WARNING

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

9. Remove four screws retaining S pinner (Inner T ub).

10.After Spinner (Inner Tub) is removed, use Spanner Wrench and Seal Nut tool to remove Seal Nut.

11.Remove gasket from Hub.

13.Remove Pressure Switch Hose from fitting on Outer Tub.

14.Remove Suspension S prings using the spring removal tool. Be careful not to let Tub and Transmission assembly tip over .

12.Use Spanner Wrench to remove Hub.

Disassembly Procedures

WARNING

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

15.Be sure to lay down a protective pad before removing assembly . Remove Outer Tub and Transmission assembly from Cabinet. Turn assembly over and stand on protective pad on Outer Tub rim.

17.Remove screws retaining Outer Tub to Transmission Support.

Tub Seal/Transmission Disassembly

1. Disconnect power supply to unit.

2. Remove Transmission Assembly from washer , see “Agitator/S pinner/Outer Tub/T ransmission Removal” procedure.

3. Remove Transmission from T ransmission Support by removing screws on Verticle Support Legs.

16.Mark location of Transmission Support with respect to the Outer Tub for ease of assembly.

Disassembly Procedures

WARNING

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

4. Remove screws retaining the Tub Seal.

Drive Pulley and Cam Removal

The Drive Pulley and Cam are located below the Brake assembly on the drive shaft. A Washer and Retaining Ring secure the Pulley and Cam on the drive shaft. A plastic Dust Cap snaps to the underside of the Pulley to keep the Cam surfaces clean. These components can be removed by tipping the Washer back to access bottom side of unit.

1. Disconnect power supply to unit.

2. Remove (pry off) Dust Cap from under side of pulley .

3. Remove Retaining Ring and Washer from end of drive shaft.

4. Firmly pull Lower Cam of f of the drive shaft splines, then slide the other parts off of the shaft.

Models are equipped with a plastic Drive Pulley which has the upper Cam molded onto the bottom of the Hub. The purpose of the Pulley and Cam arrangement is to drive the Clutch assembly during the agitate and spin cycle, and to disengage the Brake assembly during the spin cycle.

The Drive Pulley slips over the drive shaft and rests against a series of Washers, a Thrust Bearing, and a large washer type S pacer. The Sp acer locates against the bottom of the Brake Rotor and Lining assembly. The Lower Cam slips over the end of the drive shaft where splines formed in the Cam engage with mating splines on the drive shaft end. This impart s a direct drive from the Cam to the drive shaft. A shoulder molded on the bottom of the Pulley hub engages "dogs" formed on the sides of the Lower Cam, and will drive it and the drive

shaft in either direction.

Brake Disassembly

The Brake assembly is located inside the domed area of the Suspension Housing and consists of the following components: Brake S pring Ret ainer , Brake Spring, Rotor and Lining assembly, and the Brake Stator.

CAUTION:The brake assembly has a

compressive spring force of approximately 200 pounds. Use Brake Removal Tool

LA-2004 or 12002012.

1. Disconnect power supply to unit.

2. Remove T ransmission Assembly from Washer, see “Agitator/S pinner/Outer Tub/T ransmission Removal” procedure.

3. Remove the Drive Pulley and Cam component s, see “Drive Pulley and Cam Removal” procedure.

4. Pull out and remove "U" retainer from Brake Removal Tool.

5. Slip the splined end of the drive shaf t into hole located in the tool inner plunger.

6. Looking at the side of the tool, align slot s on tool barrel and holes in tool plunger between splines and chamfered shoulder of shaft.

7. Slip "U" ret ainer through tool slot s and holes capturing the drive shaft behind the chamfered shoulder .

NOTE:Be sure "U" retainer is completely through both

sides of tool.

8. T ighten tool nut to compress Brake Spring until Transmission turns freely.

9. Remove the six (6) screws which s ecure the Brake Stator and Snubber to the underside of the Suspension Housing.

10.Loosen tool nut until the Brake Spring reaches it s free length.

11.Remove "U" retainer from tool and remove tool from drive shaft.

12.Remove Brake components.

NOTE: Be sure not to get any grease on Brake Snubber ,

Stater , or Brake Lining.

Disassembly Procedures

WARNING

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

Tub Seal Replacement

1. Disconnect power supply to unit.

2. Remove Tub Seal, see “Tub Seal/Transmission Disassembly” procedure.

3. Make sure both mating surfaces on Transmission shaft are free of foreign matter , then clean both surfaces with an alcohol saturated cloth.

4. Apply a thin layer of grease to the locations indicated in the following images to Seal Nut and T riple Lip Seal before installing. Insure that no grease gets on Snubber, Stater, or Brake Lining.

NOTE: Do not use any agent other than alcohol to clean the mating surface. Do not use any lubricant other than

Silicone Grease, part number 203959.

Apply grease to location indicated with arrow on Triple Lip

Seal.

Oil Seal Replacement

The Oil Seal is located in the spline end of the drive tube. The Oil Seal can be replaced without removing or disassembling the Transmission.

1. Disconnect power supply to unit.

2. Tip Washer back to access bottom side and remove Drive Belt, Dust Cap, Retaining Ring, Washer , Cam, Drive Pulley , Thrust Bearing and S p acer, see “Drive Pully and Cam Removal” procedure.

3. Remove the Brake assembly to access the Oil Seal, see “Brake Disassembly” procedure.

4. Use a thin, flat bladed screwdriver to carefully pry the old Oil Seal out.

5. Place the drive washer (tool number 14242) and the new Oil Seal over the seal protector.

6. Remove the cone-shaped end from the seal protector tool and slide the tool, drive washer, and new Oil Seal over the drive shaft up to the seal cavity .

7. Slide the T ransmission seal driver (tool number

14242) over the drive shaft until it makes contact with the drive washer. Use the imp act sleeve of the tool to "tap" the Oil Seal into the end of the drive tube.

Snubber/Brake Assembly

1. Disconnect power supply to unit.

2. Apply a small amount of grease to the splines of the Drive Tube and Rotor.

Apply grease to locations indicated with arrows on Seal

Nut.

Spin Bearing Replacement

1. Disconnect power supply to unit.

2. Press the S pin Bearing out of the cavity from the opposite side of the housing.

3. When installing the replacement bearing into the housing cavity, be sure to press against the outer race of the bearing to avoid damage to the bearing shield and causing premature failure.

Disassembly Procedures

WARNING

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

NOTE: This is a dry operating Brake assembly. Make

sure no oil or grease comes in contact with the mating surfaces of the Brake Lining, Brake Stater, or Snubber.

3. Be sure to wash hands to remove any dirt or grease before handling Snubber . Clean new Snubber with alcohol before installing. When installing new Snubber, insure Snubber is centered.

4. Install Stator by locating the dimple on the St ator , and tightening the screw next to the dimple first.

Drive Pulley hub travels upward, it compresses the Brake S pring and moves the Rotor and Lining assembly up the drive tube disengaging it from the Stator. The T ransmission is now free to spin.

S plines in the Brake Rotor hub mesh with splines on the drive tube end to provide positive vertical movement for the Rotor and Lining assembly. The splines are greased for ease of movement.

Installing Thrust Bearing

1. Thrust Bearing and Spacer are to be assembled as shown.

Dimple

5. Next tighten the screw 180 degrees across from the dimple. Tighten remaining screws. Remove brake tool.

6. Reinst all Drive Pulley, Cam, Washer , Ret aining Ring, and Dust Cap.

The Brake assembly , as well as the Snubber, is held in position by the Brake Stator which is secured to the underside of the Suspension Housing by six (6) mounting screws.

Spring pressure forces the Rotor and Lining assembly down on the Brake Stator and prevent s the Transmission from turning during agitation.

As stated previously , the Drive Pulley and Cams provide a cam action which raises the Drive Pulley during the counterclockwise (spin) direction of the Motor . When the

2. Apply a thin layer of grease between the contacting surfaces of the Lower Cam and the Drive Pulley.

Grease

Base Replacement

1. Disconnect power supply to unit.

2. Remove Drain Pump and Belt, see “Drain Pump/Belt Removal” procedure.

NOTE: There may be water remaining in the hose from

the last cycle.

3. Lif t Top Cover, see “T op Cover Removal” procedure.

4. Remove Front Panel, see “Front Panel Removal” procedure.

5. Remove Motor, see “Motor Removal” procedure.

Disassembly Procedures

WARNING

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

6. Remove Pressure Switch hose, T ub Springs and Outer Tub/T ransmission assembly, see “Agitator/ S pinner/Outer Tub/T ransmission 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 T ub and Transmission assembly from Base. Remove Tub and Transmission assembly, turn over and lay on protective pad.

8. Remove Dust Cap, Ret aining 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.

1 1.Turn new Base upside down and apply grease at

bottom of the spring hole pockets to eliminate noise between Spring and Base interaction.

14.Transfer Transmission and Outer Tub onto new Base. Attach Suspension S prings 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

When the Drive Pulley rotates COUNTERCLOCKWISE, the upper cam and Pulley ride up the lower cam approximately 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 Sp acer 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

spin.

to agitate.

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.

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

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. A fter 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

13.Reinstall Motor and Pump to new Base.

have been molded into the Pulley as an aid in checking the point of Brake disengagement.

Disassembly Procedures

WARNING

To Check Brake Disengagement

1. Manually rotate the Drive Pulley in a slow counterclockwise direction until the Brake starts to release and the Transmission begins to turn.

2. Position the “Reference Cam Arrow” midway between the “Min Pulley Hub Reference” and the “Max Pulley Hub Reference” markers located on the Pulley.

If the position of the Cam Arrow to the Pulley Hub is not within these parameters adjustment is required.

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

Min Pulley Hub Reference

Max Pulley Hub Reference

Reference Cam Arrow

To Adjust Brake Disengagement

1. If the position of the Cam Reference Arrow is less than the Min Pulley Hub reference mark, remove

the standard (.062 thickness) Thrust Washer and replace it with a thinner (.032 thickness) Thrust Washer. Recheck disengagement 3 times to verify proper adjustment.

2. If the position of the Cam Reference Arrow is more than the Max Pulley Hub reference mark, add a (.032 thickness) Thrust Washer to the standard Thrust Washer. Recheck disengagement 3 times to verify proper adjustment.

Thrust Washer Placement

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