Maytag Atlantis User Manual

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Page 1

Maytag

MAYTJiC

Washer

Service Manual

16010358

(16009485)

Issued 5/99

Revised 6/01

Page 2

SAFETY PRECAUTIONS

This manual, as well as the information contained in it, is to be used only by a Maytag Authorized Service Technician. They should be familiar with and knowledgeable of

proper safety and servicing procedures and possessing high quality testing equipment

associated with microwaves, gas, and electrical appliance repair.

All individuals who attempt repairs by improper means or adjustment subject them selves and others to the risk of serious or fatal injury.

USE ONLY GENUINE MAYTAG APPROVED FACTORY REPLACEMENT COMPONENTS.

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE DANGER AND ELECTRICAL SHOCK:

‘'1

1. Disconnect electrical supply before servicing machine.

2. If electricity is required for a test:

(A) First, disconnect electrical supply;

(B) Second, make any connections or adjustments required for the test;

(D) Fourth, perform the test. If service is required, disconnect electrical

supply before servicing machine.

3. Please use caution when servicing the machine with the front panel removed because there is danger of injury due to potential contact

with spinning transmission.

4. Please use caution when servicing the machine with the front panel removed because there is danger of injury due to contact with a

potential "pinch point” between the turned up edge of the transmission cover and the tub support flange.

Page 3

INTRODUCTION

The information presented in this manual is printed in a loose format and is divided into

sections relating to a general group of components and/or service procedures. Each section is further subdivided to describe a particular component or service procedure.

Anything of a unique nature concerning these models has been detailed and labeled as

such in the manual.

The subdividing of the subject matter, plus the loose leaf form will facilitate the updating

of the manual as new or revised components are added or new models are introduced.

Each page of the manual will be identified in the lower right-hand corner, and as new or revised pages are published, the manual can easily be updated by following the file instructions on the cover letter of the supplement.

The service manual is a valuable tool and care should be taken to keep it up to date by prompt and proper filing of subsequent pages as they are issued.

Model(s) covered in this service manual:

Brand M=Maytag

MAV4057 MAV7200 MAV4500 MAV7000 MAV5000 MAV7057 MAV5057 MAV7600 MAV6000 MAV7700 MAV6057 MAV8000 MAV6200 MAV8057 MAV6257 MAV8500 MAV6300 MAV8600

Product AV=Automatic Vertical Washer

5000

Model No.

MAV9600

Production

Code

w w

Color Q=Bisque W=White

16010280 (16009485-02)

Voltage W=120VAC/60 Hz-U.S.

Introduction

Page 4

For additional information on material covered in this manual, including safety issues, contact:

Maytag Appliances Sales Company -

Customer Service

240 Edwards Street, S.E.

Cleveland, TIM 37311

Phone: 423.472.3333

FAX: 423.478.6722

* V

16010280 (16009485-02)

Introduction

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INTRODUCTION.................................................................................................Mi

CONTENTS...................................................................................................... iii-vl

SECTION 1. GENERAL INFORMATION

PRE-INSTALLATION REQUIREMENT....................................................................................1-1

ELECTRICAL REQUIREMENTS.............................................................................................1-1

GROUNDING INSTRUCTIONS................................................................................................1-2

UNCRATING INSTRUCTIONS............................................................................................... 1-2

INSTALLATION PROCEDURE................................................................................................ 1-3

FINAL INSTALLATION CHECK LIST.......................................................................................1-5

UNIQUE INSTALLATIONS.......................................................................................................1-5

SPECIFICATIONS....................................................................................................................1-7

CYCLE CHARTS......................................................................................................................1-9

SPECIAL TOOLS....................................................................................................................1-12

..........................................................

1-1

SECTION 2. OUTLINE OF MECHANICAL OPERATION................................2-1

GENERAL INFORMATION......................................................................................................2-1

CLUTCH ASSEMBLY.............................................................................................................. 2-1

DRIVE PULLEY AND CAMS................................................................................................ ..2-3

SECTION 3. EXPLODED VIEW OF COMPONENTS

SECTION 4. CABINET ASSEMBLY COMPONENTS

CONTROL PANEL ASSEMBLY

VERTICAL SWITCHES.............................................................................................................4-2

TIMER REMOVAL

AUTOMATIC TEMPERATURE CONTROL BOARD

TOP COVER ASSEMBLY.........................................................................................................4-3

STANDARD LID ASSEMBLY................................................................................................... 4-4

30 DAY DETERGENT DISPENSER.........................................................................................4-5

DETERGENT DISPENSING.....................................................................................................4-6

CLEANING THE DISPENSER..................................................................................................4-7

FRONT PANEL.........................................................................................................................4-7

REAR ACCESS PANEL........................................................................................................... 4-8

CABINET BODY ASSEMBLY................................................................................................. 4-9

BASE ASSEMBLY....................................................................................................................4-9

STABILIZER ASSEMBLY................................................................................................ .....4-11

TOP COVER TO CABINET HINGE........................................................................................4-12

....................................................................................................................4-2

....

..........................................................................................4-1

................................................................

......................................

.....................................

3-1

4-1

4-3

SECTION 5. WATER - RELATED COMPONENTS.........................................5-1

WATER MIXING VALVE.......................................................................................................... 5-1

WATER INLET FLUME.............................................................................................................5-2

AIR BELL.................................................................................................................................. 5-2

HOSES..................................................................................................................................... 5-2

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Contents

III

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TUB TOP.................................................................................................................................. 5-3

AGITTVrOR..............................................................................................................................5-3

INNER TUB.............................................................................................................................. 5-4

OUTER TUB ASSEMBLY........................................................................................................5-4

PUMP ASSEMBLY..................................................................................................................5-5

WATER VALVE INJECTION SYSTEM....................................................................................5-7

STAINLESS STEEL SPINNER ASSEMLY..............................................................................5-9

SECTION 6. SUSPENSION SYSTEM.............................................................6-1

SUSPENSION HOUSING........................................................................................................6-2

TUB BRACES..........................................................................................................................6-2

SUSPENSION SPRINGS......................................................................................................... 6-2

SECTION 7. TRANSMISSION AND RELATED..............................................7-1

SEAL NUT ASSEMBLY...........................................................................................................7-2

UPPER BEARING AND SEAL HOUSING...............................................................................7-2

TUB SEAL................................................................................................................................7-3

TUB SEAL REPLACEMENT....................................................................................................7-3

UPPER SPIN BEARING..........................................................................................................7-4

DRIVE PULLEY AND CAMS...................................................................................................7-4

BRAKE AND SNUBBER ASSEMBLY..................................................................................... 7-7

TRANSMISSION ASSEMBLY COMPLETE (Non-Repairable)................................................7-9

TRANSMISSION HOUSING ASSEMBLY..............................................................................7-10

LOWER BEARING ASSEMBLY............................................................................................ 7-10

DIAGNOSING TRANSMISSION PROBLEMS

TORQUE TESTING...............................................................................................................7-12

TRANSMISSION REMOVAL................................................................................................. 7-14

......................................................................

7-12

SECTION 8. ELECTRICAL COMPONENTS & TESTING

..............................

8-1

ELECTRICAL TEST EQUIPMENT.......................................................................................... 8-1

ELECTRICAL TEST.................................................................................................................8-2

TIMER......................................................................................................................................8-2

TIMER SEQUENCE CHART................................................................................................... 8-3

AUTOMATIC TEMPERATURE CONTROL BOARD

...............................................................

8-4

ANALOG TEMPERATURE CONTROL BOARD DIAGNOSTIC TABLE..................................8-6

MICROPROCESSOR TEMPERATURE CONTROL BOARD

MICROPROCESSOR TEMPERATURE CONTROL BOARD DIAGNOSTICS

.................................................

.......................

8-6

8-7

TIMER LINE SWITCH INPUT................................................................................................ 8-8

TEMPERATURE CONTROL BOARD TEST PROCEDURE {MAV8000 & MAV8057).............8-8

WATER VALVE........................................................................................................................8-8

MOTOR....................................................................................................................................8-9

MOTOR SWITCH.................................................................................................................... 8-9

MOTOR CIRCUIT TESTING.................................................................................................

8-11

MOTOR MOUNTING.............................................................................................................8-13

WATER LEVEL SWITCH.......................................................................................................8-14

SELECTOR SWITCHES........................................................................................................8-16

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Contents

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OPTION SWITCH...................................................................................................................8-16

WATER TEMPERATURE.......................................................................................................8-17

LID SWITCH...........................................................................................................................8-17

SECTION 9. TROUBLESHOOTING.................................................................9-1

DIAGNOSTIC FLOW CHARTS................................................................................................9-1

SECTION 10. ELECTRICAL SCHEMATICS................................................. 10-1

SCHEMATIC MAV4057,4500................................................................................................10-2

SCHEMATIC MAV5000..........................................................................................................10-3

SCHEMATIC MAV5057..........................................................................................................10-4

SCHEMATIC MAV6000..........................................................................................................10-5

SCHEMATIC MAV6057..........................................................................................................10-6

SCHEMATIC MAV7000..........................................................................................................10-7

SCHEMATIC MAV7057..........................................................................................................10-8

SCHEMATIC MAV8000..........................................................................................................10-9

SCHEMATIC MAV8057........................................................................................................10-10

SCHEMATIC MAV8500....................................................................................................... 10-11

SCHEMATIC MAV6200....................................................................................................... 10-12

SCHEMATIC MAV6257........................................................................................................10-13

SCHEMATIC MAV6300........................................................................................................10-14

SCHEMATIC MAV7200, MAV7600......................................................................................10-15

SCHEMATIC MAV770..........................................................................................................10-16

SCHEMATIC MAV8600........................................................................................................10-17

SCHEMATIC MAV9600........................................................................................................10-18

16010280 (16009485-02)

Contents

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NOTES

16010280

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Contents

Page 9

SECTION 1. GENERAL INFORMATION

WASHER PRE-IIMSTALLATION

REQUIREMENTS

NOTE: Proper installation is the responsi

bility of the purchaser.

Checkpoints for proper installation:

• Properly grounded electrical outlet is required. Use 15 amp fuse or compa rable circuit breaker for electrical service.

• Standpipe Drain System must be able to accept IVa" O.D. drain hose. In cases where an air tight connection is re quired, an anti-siphoning valve, part number 12001586, should be placed in the drain hose to prevent siphoning from the washer or facility during agitation. Standpipe height of 36" is recommended.

NOTE: if drain standpipe is in excess of 5 feet above floor level, install pump accessory kit, part number 12001587.

Do not store or operate washer in tem peratures below freezing. This can cause damage to the pump, hoses and other components. (See page 1-5 for long term

storage.)

Water pressure of 20 -120 RS.I. is required to fill the washer in the appropriate time

frame. Pressures of less than 20 RS.I. may

cause an extended or exceptionally long

fill time. Refer to the troubleshooting sec

tion for more information regarding a so

lution for slow fill situations.

Best performance is obtained with the washer installed on a solid floor. Wood floor constructions may need to be rein forced to minimize vibration from unbal anced load situations. Carpets and soft tile surfaces are also contributing factors

in vibration and/or movement during the

spin cycle. Never install washer on plat form or weak support structure.

• These units are not equipped with a siphon break, and the drain hose must

be elevated to a minimum height of 36".

For installations with short standpipes, the drain hose must be supported by clipping the drain hose into the clip on the back of the washer. Then a coupler

and additional hose length is added to the existing drain hose.

• Hot and Cold water faucets should be within four (4) feet of the back of the

washer. This allows for quick access for immediate shut off of the water.

Water heater should be set to deliver a

minimum of 120° (49°C) hot water to

the washer.

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ELECTRICAL REQUIREMENTS

1. Provide an individual 120 volt, 60 HZ, branch circuit with ground for the washer.

This circuit must be rated for 15 amperes

or more.

2. Protect the washer's electrical circuit with a 15 ampere time delay fuse or circuit breaker.

3. Install in accordance with National Electrical Code and all local codes and ordinances.

Section 1. General Information

1-1

Page 10

GROUNDING INSTRUCTIONS

The washer must be grounded. In the event of a malfunction or breakdown, grounding will

reduce the risk of electrical shock by provid ing a path of least resistance for electrical current.

The washer is equipped with a power supply cord which has a grounding conductor and three-prong grounding plug. For proper

grounding, the three-prong grounding plug

must be plugged into an appropriate three-

prong grounded receptacle or outlet (see the following figure). The receptacle must be

properly installed and grounded in accor

dance with the National Electrical Code and

all local codes and ordinances.

WARNING: Improper connection of the

grounding conductor or the three-prong grounding plug of the power supply cord may result in an electrical shock hazard. If there is any doubt as to whether the washer is prop

erly grounded, have the installation checked

by a qualified electrician.

DO NOT MODIFY THE PLUG PROVIDED WITH THE WASHER - If the plug will not fit the outlet, have a proper outlet installed by a qualified technician.

WARNING: For your safety and to protect the test equipment, be sure that the wall out let is properly polar ized and grounded.

UNCRATING INSTRUCTIONS

NOTE: The following steps must be per

formed in the correct order to ease uncrating.

1. Remove the carton by cutting only marked areas of the carton. CAUTION: Hoses are

connected to the washer.

2. Lift the carton and top cap assembly up and clear of the washer. Carefully remove any packaging materials from the outside of the washer.

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NOTE: Retain the corner posts for later use.

3. Remove tape and raise the washer lid; re move the items shipped in the spin bas ket. Save the literature for future refer ence. Close lid and tape.

4. Position three (3) corner posts on the floor near the rear base of the washer. Place the remaining corner post on the floor approximately two feet away. Carefully lay the washer on its back, on top of the corner posts.

Section 1. General Information

1-2

Page 11

DO NOT LOWER OR RAISE THE WASHER BY THE CONTROL PANEL

5. Remove the crate bottom from the washer. Pop the plastic loose from the screw lo cated between the back feet, or remove the screw entirely with a screwdriver

(Figure

1-2). Pull the plastic base away from the

back feet. Grasping the plastic base on the sides, pull down and toward you to release

the front feet from the slots and remove the base. Discard the base (it can be re cycled). RETURN THE WASHER TO THE

UPRIGHT POSITION.

Proceed as follows:

1. Place the washer as close to its final oper ating location as possible.

2. Make sure rear feet move up and down freely.

3. Place washer in final location.

INSTALLATION PROCEDURE

NOTE: Proper installation is the respon

sibility of the purchaser.

Service calls performed as a result of im

proper setup, adjustment and connection are the responsibility of the installer.

When the machine is in place, screw front feet out of base against the floor until the

machine is level across the top front of

the washer.

While holding foot still, turn the adjust

ing locknut clockwise until the nut is tight

ened firmly against base (Figure 1-3).

Tilt machine forward until rear of cabi

net is approximately 4 inches off the floor. Lower the machine back to the floor on

the rear feet. This operation causes the

rear stabilizing feet to conform to the con

tour of the floor and seat them solidly.

Push washer with hands on opposite corners to check stability (Figure 1-4).

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Section 1. General Information

1-3

Page 12

7. If the standpipe is less than 36" high, pull the drain hose up vertically and snap the hose into the retaining clip positioned on the upper, rear cabinet wall (Figure 1-5).

8. Install gooseneck end of drain hose into

drain standpipe. Be sure the connection is not airtight between the drain hose and

the standpipe. Standpipe must be at least

36" high. If the hose is twisted after it has been placed into the standpipe, adjust the end of the hose to remove the twist. To remove the twist, turn the short end of the hose while holding the base of the

hose stationary (Figure 1-6).

9. The drain hose should fit loosely in the standpipe to prevent siphoning. (An anti siphon valve and associated parts are available from your dealer, part number

12001586.)

SERVICE

UNIT

LAUNDRY

TUB

STANDPIPE

NOTE: Be sure the drain hose is not twisted or kinked.

16009485-01

SL297TIF

Figure 1-7

Section 1. General Information 1-4

Page 13

10. Secure the drain hose to the standpipe or drain facility with the cable strap pro

vided. This will ensure the drain hose will

not fall out of the drain facility

(Figure 1-7).

SIDE VIEW OF WASHER

11. Connect inlet hoses to water supply us ing screen washers at faucet connections,

with the domed plastic screen facing the faucet (Figure 1-8). Tighten hose con

nections by hand until snug. Then, turn another 2/3 of a turn with the pliers.

At Faucet Connection

0=^333

At Water Valve Connection

SL2S5T1F

Figure 1-8

12. With hoses attached to both the faucets and the water valve, turn on the water and check for leaks. Note the H and C desig

nations on the water vaive bracket for the Hot and Cold hoses.

Tub

Water Level

Figure 1-9

FINAL INSTALLATION CHECK LIST

1. Have all installation requirements been observed?

2. Have locknuts on front feet been tightened?

3. Are there any kinks in the hoses?

4. Are any water leaks evident?

UNIQUE INSTALLATIONS

13. Plug the power cord into an outlet.

14. Start the washer in a spin cycle per oper ating instructions to center basket.

15. Start the washer in a wash cycle per oper

ating instructions. Allow water to fill in machine until it reaches the level of the bottom row of holes in the wash basket. Then, stop the washer by pushing on timer

knob.

16. If the water is not level with the bottom

row of holes all around the basket (Figure

1-9), readjust the leveling feet as required

to level. Remove the water by selecting a

spin cycle.

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Painted/Sloped Basement Floors - Apply non slip discs, part number 211692, to the floor di rectly under the rubber feet of the washer.

Carpeted Floors - Apply carpet installation discs, part number 204986.

Weak Floors - Install rear legs with plastic grommets, part number 12001577, to be inserted into base frame to substitute for the self adjusting legs.

Cold Storage or installations - Installation in any location subject to freezing temperatures is not recommended. If the washer must be

installed in such a location, it should be thor oughly drained after each use as follows:

Section 1. General Information

1-5

Page 14

• Turn off hot and cold water faucets.

• Disconnect both water inlet hoses at the faucets. Lower them to the floor.

• With the service cord connected to the electrical outlet, rotate the timer to the

normal start or fill position and pull timer knob to start washer. Turn water tempera

ture selector switch to warm.

• When water stops draining from the hoses, disconnect service cord.

• Lower the drain hose to the floor and al low it to drain into a floor drain or shallow pan.

In below-freezing temperatures, ice may form in the "fill" flume and the pump. Raise the room

temperature and allow time for the ice to melt

before using the washer.

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Section 1. General Information

1-6

Page 15

SPECIFICATIONS - WASHER

CAPACITY

ELECTRICAL

MOTOR

POWER USAGE

TRANSMISSION

WATER USAGE

HOSE LENGTHS

DIMENSIONS

3.2 Cubic Feet

120 Volts, 60 Hz; Requires 15 amp circuit breaker or fused electrical supply.

Power cord must be connected to a properly grounded and polarized outlet

1/2 H.P., reversible, 2 Speed, 115 volt, 60 cycle A.C. Motor Input: During Agitation* -480 Watts Max. (Fast) 370 Watts Max.

(Slow) During Pump Out* - 760 Watts (Fast) 510 Watts Max. (Slow)

Spin - 460 Watts (Fast) 340 Watts (Slow)

[‘Wattage readings taken with no clothes in spinner.]

Rack and pinion type, incorporating reduction gears

Water pressure should be 20 - 120 P.S.l. (1.06-8.44 kg/cm) at inlet hose

connection. (SEE PAGE 1-8 FOR MORE DETAILS)

Four foot inlet hoses with inlet washers attached to water valve. Drain hose attached to pump and will accommodate 36" high drain stand pipe.

Cabinet Dimensions: 27" (68.58cm)W x 27 (68.58cm)D x 43 3/8" (110.2cm)H

Vi#’

WEIGHT (Approx.)

FINISH

16009485-01

Uncartoned 160 lb. (72.6 kg.) Approx. Crated 185 lb. (84 kg.) Approx.

Top Cover - Porcelain

Lid - Porcelain Outer Tub - constructed entirely of polypropylene

Spin Basket - polypropylene Cabinet - baked enamel

Base and other finished parts - baked primer

Section 1. General Information

1-7

Page 16

Setting

Mini Medium High Super 23.3

^Allowable variations are plus or minus 1/2 inch.

Gallons

10.5

14.1

19.5

AGITATOR SPEED

*Depth

Inches

6" 8 1/2“ 5“

11" 7“ 13 1/2“ 9 1/4"

Perforations

*Basket

3 1/2“

Regular Cycle 88 Oscillations per minute

Slow (Delicate) Cycle 57 Oscillations per minute 155 Degree Arc

155 Degree Arc

SPIN SPEED

Regular Cycle

Slow (Fine Wash) Cycle 410 R.RM.

TABLE 1-1. AMPERAGE CHART

WATER

CYCLE Agitate-Regular Full Tub 10.4 Agitate-Slow Full Tub Agitate-Regular

Spin-Regular Spin-Slow DryTub Pump Out-Regular Pump Out-Slow Full Tub

LEVEL

DryTub 7.5 DryTub 10.2

Full Tub

620 R.RM.

♦AMPS

7.6

10.8

8.0

TABLE 1-3. WATTAGE CHART

♦WATTAGE

CYCLE

Agitate-Regular

Full Tub 610-640/670 (MAX.)

Agitate-Slow

Full Tub

Agitate-Regular

DryTub 460^70/480 (MAX.)

RANGE

370-400/420 (MAX.)

COMPONENTS

Timer Motor

Mixing Valve

Cold Solenoid /Vof Solenoid Drive Motor

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TABLE 1-2. RESISTANCE CHART

♦RESISTANCE

(OHMS)

2360

500-1000

853 867

High Speed

Low Speed

Start 3.1

* These values can vary slightly.

1.3

2.3

Agitate-Slow DryTub 350-360/370 (MAX.)

Pump Out-Regular

Pump Out-Slow

Spin-Regular

Full Tub

Spin-Slow

Full Tub 340

* These will vary with washer load and line voltage.

Section 1. General Information

760

510

460

1-8

Page 17

CYCLE CHARTS

COLORS

Function

Agitate Agitate Spin Agitate Spin w/Spray

SUPERWASH COLOF

Function

Agitate Agitate Slow

Speed (Min.)

Fast

Slow

Fast

Slow

Fast

Speed

Fast

Heavy Option

Selected

Normal Light Option Selected (Min.) (Min.)

9 9 6 6 9

Heavy Option Selected (Min.)

18 12 9

3 0 9 9 6 6 6 9

Normal Option Selected (Min.)

Option Selected

Light Option Selected (Min.)

0 Spin Fast Agitate

Spin w/Spray Fast

Slow

6 6

6 6 9

WHITES

Heavy

Option Option

Selected Selected

Function

Agitate Agitate Slow

Spin w/Spray Fast Agitate Fast 6 6 6 Spin

Speed (Min.)

Fast

12 6

9 6 6

Normal Light

Option Selected

(Min.) (Min.)

9 9

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Section 1. General Information

1-9

Page 18

SUPERWASH WHITES

Heavy Option Selected

Function

Agitate

Speed

Fast

(Min.)

Agitate Slow 0 Spin w/Spray Fast 6 Agitate Fast 6 Spin

Fast

DELICATES

Heavy Option Selected

Function Speed

Agitate

Slow

(Min.)

Normal Option Selected (Min.)

0 0 6 6 6 6 9

Normal Option

Selected (Min.)

3 0

Light Option Selected (Min.)

Soak

Not Applicable

Agitate Slow

Soak Not

Applicable

Agitate Slow

Spin w/Spray Slow Agitate Slow Spin

Slow

0 0

0 0 0 0

3 0

3 3 3 3

3 3 6

3 3

6 6

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Section 1. General Information

1-10

Page 19

SUPERWASH DELICATES

Heavy Option

Selected

Function

Agitate

Speed

Fast

(Min.)

Not

Soak

Agitate

Applicable 0

Slow

Not

Soak

Agitate

Applicable

Slow

Spin w/Spray Slow 0

Agitate Slow 0

Spin

Slow

Normal

Option

Selected

(Min.)

0 3

Light

Option Selected (Min.)

3 0

3 3

6 6

3 3

6 6

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Section 1. General Information

1-11

Page 20

SPECIAL TOOLS

All special tools are manufactured by Robinaire with the exception of the 35-2442 Brake Removal Tool and 35-2968 Spanner Wrench - Basket Hub. These tools are privately manu factured for and stocked by Customer Service.

NOTE: The tools listed below can be ordered from any authorized Customer Service parts

distributor.

Brake Removal Tool, Part Number LA-2004

Spanner Wrench-Basket Hub, Part Number 35-2968

Spring Tool, Part Number 22002922

Seal Removal Tool, Part Number 2000021

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Section 1. General Information 1-12

Page 21

SECTION 2. OUTLINE OF MECHANICAL OPERATION

GENERAL INFORMATION

NOTE: The rotation directions, stated in this outiine, view the component from its ouiiev end.

The washer utilizes a reversible type motor which turns clockwise during the agitate

cycle and counterclockwise during the spin cycle.

A single belt is used to transmit power from the motor pulley to the drive and pump pul

leys.

CLUTCH ASSEMBLY

The transmission drive pulley, which drives the transmission drive shaft and hub assembly,

and the pump pulley which drives the pump impeller, are in operation whenever the mo

tor is running. The transmission assembly converts the

power from the motor to either drive the agi

tator or spin the basket. The direction the

clutch assembly rotates determines which action takes place.

Washer-Thrust Hub

Figure 2-1

CLUTCH ASSEMBLY

The clutch assembly (Figure 2-1) consists of the drive shaft and hub assembly, clutch

spring, and input pinion with gear lock assem bly. The gear lock mechanism is part of the input pinion. The drive shaft serves only as a bearing surface for the drive pinion to revolve on. No direct drive is imparted from the shaft directly to the pinion. The inside diameter of the clutch spring is designed so that when the

drive shaft is driven in a clockwise direction.

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the clutch spring tightens on the two hubs and becomes a positive link between them. When the drive shaft hub runs counterclockwise, the clutch spring relaxes in an override situation. While in override, or relaxed position, the

clutch spring still maintains a drive link be tween the two hubs. The override tension, or torque, is used to drive the spin basket. The

gear lock mechanism consists of two "wings" that project out from the input pinion.

Section 2. Operation

2-1

Page 22

Transmission

' Housing

Assembly

Lower Bearing And Housing — Assembly

Oil Seal ■

Suspension

Housing

Brake Spring Retainer

Retaining Ring

Drive Tube Splines

Drive Shaft Splines

Thrust Bearing

Washer (Curved)

Outer Edge

Turned Up

I Drive Pulley I Assembly

Lower Cam ■

Spacer

Washer (thin)

~ Upper Race

)>^Washer (thick)

Lower Race

Washer (thin) Thrust

Brake Rotor

And Lining Assembly

Brake Stator

Figure 2-2

Retaining

Ring

-Thrust Washer

■Dust Cap

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Section 2. Operation

2-2

Page 23

When the drive pinion rotates in a clockwise direction, the gear lock mechanism exerts no force on the input pinion. When the input pin ion starts to revolve counterclockwise the "wings" drop into dents in the lower housing

preventing the pinion from turning.

DRIVE PULLEY AND CAMS

OPERATION: AGITATION

When the drive pulley rotates CLOCKWISE, the upper and lower cams are designed to nest together which allows the drive pulley to re

main in position on the drive shaft. The brake

remains engaged and the drive pulley will turn the lower cam and drive the shaft to cause the transmission to agitate.

The drive pulley and cam is located below the brake assembly on the drive shaft

(Figure 2-2).

All 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 spacer. The

spacer locates against the bottom of the

brake rotor and lining assembly (See the

illustration on page 7-6).

The lower cam slips over the end of the drive

shaft where splines formed in the cam en

gage with mating splines on the drive shaft

end. This imparts 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.

The agitation is due to the clockwise (agitate)

rotation of the drive shaft and the hub assem

bly as it is transmitted to the input pinion by the clutch spring. The input pinion meshes with the dual cluster gears which, in turn mesh with the dual crank gears (Figure 2-3). The

circular motion of the dual crank gears are con verted to the oscillating action of the agitator

shaft by the dual rack gears. The rack gears

have a stud that drops into the crank gears.

These rack gears are contained by a rack car

rier. Any tendency of the transmission to turn, or "creep," is prevented by the engaged brake assembly located on the under side of the suspension housing.

OPERATION: SPIN

When the drive pulley rotates COUNTER CLOCKWISE, the upper cam and pulley ride

up the lower cam approximately 3/16 of an

inch before the driving shoulders on the pul

ley 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 lin

ing 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.

A washer and retaining ring secure the pul

ley and cam on the drive shaft. A plastic dust cap snaps to the underside of the pulley to keep the cam surfaces clean.

16009485-01

A nylon cam, along with a special drive pul

ley, provides a cam action which raises the drive pulley during the counterclockwise (spin) rotation of the motor (Figure 2-2). As

the drive pulley hub moves up, it compresses

a brake spring and lifts the brake rotor and lining assembly, disengaging it from the sta

tor. The transmission is now free to spin.

Section 2. Operation

2-3

Page 24

The counterclockwise rotation of the drive

shaft and hub assembly causes the clutch spring to relax into an override position. The clutch spring still exerts a driving force to the input pinion even when it is in the override position. As this driving force of torque starts

to turn the input pinion in a counterclockwise

direction, it causes the "wings" of the gear lock mechanism to drop into dents on the lower housing. This prevents the input pinion from

revolving in the counterclockwise direction.

Therefore, the torque being delivered by the

clutch spring is exerted against the transmis sion housing, causing the entire assembly to rotate. The washer basket is mounted to the basket drive hub which is secured to the trans mission cover assembly, and revolves as part of the transmission. In this direction, the pump assembly will drain the water out of the unit.

16009485-01

Section 2. Operation 2-4

Page 25

Rack Gear

Carrier

Transmission

Cover

Agitator

"shaft

Output

^ Pinion

Lower Seal

Bearing

Housing

Transmission

Housing

Input Pinion

Crank

Gear

—Wings

16009485-01

Figure 2-3

Section 2. Operation 2-5

Page 26

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Section 2. Operation 2-6

Page 27

SECTION 3. EXPLODED VIEW OF COMPONENTS

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Section 3. Exploded View Of Components 3-1

Page 28

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Section 3. Exploded View Of Components 3-2

Page 29

SECTION 4. CABINET ASSEMBLY COMPONENTS

WARNING

Warning - Always shut off electrical power to the washer before beginning any service repair proce dures.

CONTROL PANEL ASSEMBLY REMOVAL

1. Disconnect power to the unit.

2, Remove the three screws securing the

console rear cover plate across the rear top edge of the console (Figure 4-7).

5. Push the bottom of the console toward the back panel to disengage the six locking

feet from the top cover (Figure 4-3).

6. Carefully lift and roil the console forward onto the top cover. You now have access

to the console components and wiring

(Figure 4-4).

3. Lay a drop cloth across the top cover of the washer.

4. Grasp the top of the console and gently

rock the top forward (Figure 4-2).

16009485-01

Figure 4-4

To Reinstall: Roll the console back into an

upright position, engaging the locking feet into the slots in the top cover. Replace the

three screws to attach console back to rear

panel.

Section 4. Cabinet Assembly Components 4-1

Page 30

VERTICAL SWITCHES (Push Button)

REMOVAL

1. Depress the tab at the top of the switch with a screwdriver to disengage the tab from the console. Pivot the switch away from the console to remove (Figure 4-5).

REPLACEMENT

1. Align the rib on the bottom of the switch with the slot in the console. Pivot the

switch up into the console until the tab en gages the console securely. Check that the locating tabs on either side of the switch's lower alignment rib are in position to prop erly center and lock the switch into the lower part of the switch opening.

3. Disengage the console assembly from the top cover and roll forward (See Console

Removal).

4. Remove timer mounting screws under the timer knob.

5. Lift the timer away from the console.

TIMER REMOVAL - All MAV Models Except MAV8500

1. Disconnect power to the unit.

2. Carefully lift the timer knob cap from the timer knob and pry the clip retainer from the timer shaft. Lift the dial and knob off the timer shaft by pulling away from the face of the control console (Figure 4-6).

REPLACEMENT

1. Reverse steps 1 through 5.

TIMER REMOVAL - MAV8500 Models

1. Disconnect power to the unit.

2. Remove the knob cap.

3. Gently pry the locking pin up and lift the timer knob off the dial skirt.

4. Lift the dial skirt off the timer shaft

(Figure 4-7).

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Section 4. Cabinet Assembly Components 4_2

Page 31

AUTOMATIC TEMPERATURE CONTROL BOARD

REMOVAL

1. Disengage the console assembly from the top cover and roll forward (See Console

Removal).

2. Remove wire harness from control board.

3. Squeeze the locking tabs together

(Figure 4-9).

4. Slide the control board and bracket away from the timer motor to unhook the bracket from the timer rear face plate. Mounting

hooks on the bracket engage with the edge

of the timer rear face plate.

FOR ALL MAV8500 MODELS

1. Remove board mounting screw, and bracket mounting screw.

2. See Figure 4-8 for additional assistance.

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Section 4. Cabinet Assembly Components 4-3

Page 32

TOP COVER ASSEMBLY

The top cover assembly consists of the top

cover, washer lid assembly, lid switch and bracket, water inlet flume, bleach dispenser, and the control panel assembly.

The assembly is mounted to the cabinet with

two (2) steel hinges which are attached to the upper cabinet. These hinges engage into hinge slots located in the back edge of the cabinet which allows the top cover to be raised

for servicing.

Two (2) slots pierced into the front flange of the top assembly align with two (2) locating

plastic shipping stops to center the top cover to the cabinet. Two (2) spring clips engage the top cover flange and secure the top as sembly to the cabinet front.

NOTE: The locating pins and top dips are mounted to the front pane! flange on all the models (Figure 4-10).

Raising the top will allow access to:

3. Raise the top cover assembly and remove the flume inlet hose from the water valve.

4. Lower the top and remove the control panel rear shield.

5. Disconnect the pressure switch hose and all necessary wiring. Feed the hose and wiring through their respective top holes.

6. While pulling forward, slightly raise the top

cover assembly forward and remove.

• Flume and Inlet Hose

• Lid Switch Actuator

• Air Dome Hose Connection

• Water Inlet Valve Wiring

• Spin Basket Assembly

• Outer Tub Assembly

REMOVAL

1. Disconnect power to the unit.

2. To raise the top assembly, insert a thinbladed tool (such as a putty knife) between

the front panel and top assembly approxi

mately three (3) inches in from each cor ner. While raising the top assembly, de press each spring clip (Figure 4-10).

STANDARD LID ASSEMBLY

The washer and lid assembly consists of the lid, mounting hinges, plastic lid switch cam (switch actuator) and condensation seal with

bumpers. The assembly is secured to the top panel by the two mounting hinges.

When the washer lid is lowered, the plastic lid switch cam protrudes through a slot in the rear

of the top cover and depresses a plunger that actuates the lid switch (Figure 4-11).

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Section 4. Cabinet Assembly Components

4-4

Page 33

REMOVAL

1. Lift the washer lid.

2. Locate the left hinge and lift the locking tab in the center of the hinge from the lo

cating hole in rear edge of the lid

(Figure 4-12).

3. Gently pry the hinge toward the center of the lid. This will draw the pin of the hinge

out of the bushing in the top cover

(Figure 4-12).

4. With the left hinge removed, grasp the lid and pull the lid away from the right hand

bushing in the top cover.

REPLACEMENT

1. Reverse steps 1 through 4.

30 DAY DETERGENT DISPENSER (Optional Accessory)

The Dosing Lid Assembly consists of the de tergent reservoir, dispenser valve assembly,

cap and twist locks.

The reservoir stores liquid detergent and will

dispense the detergent directly into the spin basket when the actuator is manually de pressed. The detergent reservoir is secured into the lid by four twist locks.

Removal of Reservoir

1. Turn each of the twist locks on the face of the detergent reservoir 1/4 turn counter clockwise (Figure 4-13).

2. Pull the bottom of the reservoir away from the lid and unhook the top of the reservoir from under the lip of the lid.

Removal of Valve Assembly

1. Locate the locking clip below the dispens ing button (Figure 4-14).

2. Depress the dispensing button while slid ing the retaining clip down. This will re lease the plunger and dispensing button and allow removal.

16009485-01 Section 4. Cabinet Assembly Components 4-5

Page 34

Figure 4-13

Warning: The spring in the valve assembly is compressed and may fly out of the dis penser. Depressing the plunger button during dip removal will prevent this from occurring.

Slide the left retainer toward the center of the lid and remove from behind the lid flange (Figure 4-15).

With the left retainer removed, grasp the lid vertically and rotate the torsion rod in a clockwise direction away from the right

hand plastic bushing in the top cover.

TORSION ROD ASSEMBLY

The torsion rod assembly acts as a counter

balance when liquid detergent is in the dis penser. This allows for easier opening and closing of the washer lid.

REMOVAL

1. Lift the washer lid and remove the deter gent reservoir.

2. Remove the center support from the tor sion rod by rolling the support toward you.

DETERGENT DISPENSING

Figure 4-16

1. After initially filling the reservoir of the dis penser, lower the lid to fill the dispensing chamber on the left side of the dispenser.

16009485-01

Section 4. Cabinet Assembly Components 4_0

Page 35

2. Position the cap of the detergent bottle be ing used under the spout of the dispenser.

3. Press and hold the button and dispense liq uid into the cup until the desired amount has dispensed.

4. Slide the plastic indicator down the sight

window until even with the detergent

shown.

5. The next time the lid is lowered and raised, the sight window will fill with liquid deter

gent. By depressing the button until the

level in the sight window is even with the indicator, will provide uniform dispensing of detergent brand being used.

NOTE: Empty dispenser completely before

refilling. Do not mix different detergents.

2. Remove the dispenser valve assembly and rinse with warm water fSee Removal of Valve Assembly Page 4-6).

3. Fill the dispenser with hot or warm water and gently tilt the dispenser forward and

back to flush the water around inside the

dispenser.

4. Turn the dispenser vertically so the fill cap is facing up and remove the cap. Pour the contents out and repeat the process until dispenser is flushed. NOTE:

Water will

flow out of the dispenser valve area.

5. Reinstall the dispensing valve assembly into the reservoir. While depressing the

button, replace the clip onto the valve

assembly.

6. Reinstall the reservoir into the lid and se

cure the twist locks.

Figure 4-17

CLEANING THE DISPENSER

Mixing different liquid detergents in the res ervoir can cause the detergent to clump and clog the dispenser outlet. In which case, clean ing out the reservoir is necessary.

1. Remove the dispenser from the lid (See

Removal of Reservoir Page 4-6).

7. Close and open the lid.

8. Press the "PUSH" button (plunger) to re

lease any remaining water/detergent. Re peat steps 7 & 8 until no more water can be drained from the dispenser. It is nor mal for a small amount of water to remain in the dispenser after cleaning.

9. Refill the dispenser with liquid detergent. The reservoir will hold 100 fluid ounces at

one time.

FRONT PANEL

The front panel is attached to the cabinet side flanges via screws at the top and secured at the bottom with base mounting clips. Locat

ing tabs on the front panel flanges position

the top cover for assembly (Figure 4-18).

The front panel provides mounting for the lo

cating tabs and top clips. A plastic support brace is wedged in the center of the panel for support.

16009485-01

Section 4. Cabinet Assembly Components 4-7

Page 36

Front panel removal will allow access to the:

Motor Motor Mount Motor Wiring Motor Pivot Spring Suspension Springs

Tub Brace

Pump

Remove the two 5/16" hex/cross head

screws securing the front panel to the up

per front corner braces of the cabinet.

(Figure 4-19 & 4-20)

Move top edge of front panel away from

4. cabinet while lifting. This will disengage

the bottom of front panel from base clips.

REPLACEMENT

1. Reverse above steps.

REMOVAL

1. Disconnect power to the unit.

2. Insert a thin-bladed tool between the front panel and the top cover assembly, approxi mately three (3) inches in from each cor ner. While lifting up on the top cover as sembly, press the blade against the wire clips, one side at a time to disengage them. Lift the top cover up to a stationary position.

16009485-01

Figure 4-19

REAR ACCESS PANEL

Removal of the access panel, gains access

to the rear inside components of the washer.

Panel removal will allow access to:

• Stabilizer Assembly

• Rear and Side Suspension Springs

• Tub Braces

REMOVAL

1. Remove the four screws surrounding the access panel (Figure 4-20).

Section 4. Cabinet Assembly Components 4.3

Page 37

CABINET BODY ASSEMBLY

The cabinet provides mounting for the front

panel, rear access panel, top cover assembly,

water valve and the power cord.

9. Remove the eleven (11) screws that secure the cabinet body to the perimeter of the

base.

10. Open the front of the cabinet body slightly and push if off the rear of the base frame.

BASE ASSEMBLY

The base assembly, which serves as a support for the entire wash unit, is constructed of heavy gauge metal that has been flanged and embossed for strength.

There is a spherical configuration on the lower end of the brake/transmission/tub assembly. This spherical shape rides on the raised dome like area in the center of the base. The mount ing is similar to a ball joint and allows the hous ing to move freely in all directions

(Figure 4-21).

The cabinet is attached to the perimeter of the base with eleven (11) screws.

REMOVAL

1. Disconnect power to the unit.

2. Remove the top cover (See TOP COVER

REMOVAL - Page 4-3).

3. Remove the front panel (See FRONT PANEL

REMOVAL - Page 4-8).

4. Remove the power cord.

5. Remove rear access panel and drain hose cover.

6. Remove water valve and bracket.

7. Remove wiring clips and clamps from inner cabinet rear.

The base assembly also provides mounting for the pump assembly, motor and plate assem bly, suspension springs, front panel clips, and the stabilizer assembly.

The cabinet is secured to the base with screws and positioned foam pads to prevent vibra tion or noise transfer. The cabinet does not support any of the wash unit's weight.

BASE REPLACEMENT

1. Disconnect power to the unit.

2. Tip unit back and remove the drive belt.

3. Remove the drain hose cover from the cabinet rear and disconnect the discharge hose from the pump outlet.

4. Remove the top cover (See TOP COVER

REMOVAL - Page 4-3).

8. Remove front cross braces and screws.

16009485-01

5. Remove the front panel (See FRONT

PANEL REMOVAL - Page 4-7).

Section 4. Cabinet Assembly Components 4-9

Page 38

6. Disconnect lower wiring from the cabinet rear (water mixing valve, power cord, etc.) and remove pressure switch hose from tub air bell.

7. Remove the screws attaching the cabinet to the base.

8. Remove lower screws on cross braces.

9. Push the front of the cabinet slightly back and carefully push or pull it off the rear of the base assembly.

11. Remove motor mounting screws, ground wire and wiring clips from base. Lift the motor and plate assembly from the base.

12. Remove the suspension springs (See

SPRING REMOVAL, Page 6-2 thru 6-3).

13. Remove the stabilizer assembly from the base assembly, as detailed later in this section.

14. Transfer the remaining hardware from the defective base to the replacement.

10. Disconnect the pump hose from the tub outlet and remove the pump assembly and hose from the base.

16009485-01

15. Installation is a reversal of the above procedure.

Section 4. Cabinet Assembly Components 4-10

Page 39

STABILIZER ASSEMBLY

The stabilizer assembly consists of the

stabilizer bar assembly, two (2) stabilizer brackets, two (2) self stabilizing feet, and

two (2) foot pins. It is mounted on the top

rear of the base assembly.

The stabilizer assembly allows the base

assembly to rest solidly and firmly against

the floor, even if the floor is unlevel. The

solidity of the base to the floor keeps the washer from rocking back and forth or “walking" during operation.

As the name implies, the stabilizer only stabilizes the unit; it does not level it. Any

leveling that is required must be done

with the front adjusting (leveling) legs.

In rare cases where the floor is so uneven

that it is beyond the stabilizing limit of the

assembly (+ or - 5/8"), It may be neces sary to remove the stabilizer assembly

and install two (2) rear adjustable feet.

Two (2) threaded holes have been pro

vided in the rear corners of the base for

this situation. A kit, part number

12001577 is available.

REMOVAL

1. Disconnect power to the unit.

2. Remove the access panel from the

cabinet rear.

3. Tip or lay washer down, either forward or on the side. Remove the screws

from the underside of the base that

attaches the stabilizer assembly to the

rear of the base (Figure 4-21).

4. Remove the stabilizer assembly

through the rear access panel.

5. To disassemble the stabilizer assembly after removal, drive the two (2) foot pins out of the feet and brackets.

NOTE: in order for the stabilizer assem

bly to operate properly, a thin coating of grease must be applied over the entire

length of the four (4) pin guides as well as the foot holes in the bracket (Figure 4-

11).

16010280

(16009485-02)

SECTION 4. Cabinet Assembly Components

4-11

Page 40

TOP COVER TO CABINET HINGE

Some models will have a plastic hinge

assembly holding the main top to the

cabinet. (Figure 4-1)

Figure 4-1

The hinge assembly is removed from the

unit by lifting the main top about 2 inches and sliding it forward. The hinge is then removed by pushing up and out on the lower tab and lifting the hinge up to release it from the cabinet. (Figure 4-2)

Lift up and push out on hinge tab to release hinge from cabinet

Figure 4-2

16010280 (16009485-02)

SECTION 4, Cabinet Assembly Components

4-12

Page 41

SECTION 5. WATER ■ RELATED COMPONENTS

WARNING

WATER MIXING VALVE

Warning - Always shut off electrical power to

the washer before begin

ning any service repair procedures.

The water mixing valve is located inside the

left rear cabinet area, when viewing from the front. It is secured by two (2) screws inserted through the valve bracket and into the cabi

net. The hot and cold water supply inlet hoses

are attached to the nozzles of the water valve.

The mixing valve will allow hot or cold water,

or a mixture of the two as called for by the

27"

68.6 cm

Water

Valves

control circuitry, to enter the machine through

the inlet hose and inlet flume.

Usually, the temperature of the warm water entering the machine will be about halfway between the cold and hot water temperatures delivered to the valve. This will occur when

the flow rate of both are equal.

Inlet Hoses

16009485-01

<■131/2">1

34.3" cm '

SL232TIF

SL238TIF

Figure 5-1

Section 5. Water Related Components 5-1

Page 42

WATER INLET FLUME

HOSES

The molded plastic water inlet flume consists

of an upper and lower section that has been snap-locked together.

The flume is located on the rear underside of the washer top assembly. The flume fits flush with the top opening and is secured to the top

by one mounting screw, accessed through the control console. An inlet hose from the wa ter mixing valve connects to the flume nozzle.

Water Supply Inlet Hoses

Two (2) water inlet hoses attach from hot and

cold water supply lines to their respective nozzles on the water mixing valve. They are secured at both ends with threaded couplings.

Flume Inlet Hose

The flume inlet hose attaches the water mix

ing valve to the water inlet flume. It is secured at both ends with spring type hose clamps.

Pressure Switch Hose

The pressure switch hose is made of soft plas

tic tubing and fits snugly over the water level switch nipple at one end, and the air bell nipple at the other. A clamp on the inner cabinet rear positions the hose, and a pad prevents the

hose from contacting the back of the cabinet

during operation. The hose is installed with

its ends seated against the switch and air bell bodies, and is secured at the tub ends with a

spring type hose clamp.

AIR BELL

A polypropylene air bell and nipple assembly have been thermally welded to the lower, outer tub, rear. One end of the pressure switch hose connects to the air bell nipple and the other end is attached to the water level switch.

As the water level rises in the tub, it com

presses the air in the air bell and the attached hose. The compressed air inside the hose will

activate the pneumatically operated water

level switch when the selected water level has been reached. When the air pressure is low ered during the drain cycle, the switch will reset.

N OTE ; When reinstalling the pressure switch

hose, make sure the system is free of air leaks and water in the hose or an overflow condi tion will occur.

Tub to Pump Hose

The tub to pump hose attaches from the drain

outlet on the tub to the pump inlet. It is se cured at each end with a spring-type hose clamp.

Drain Hose

The drain hose attaches the pump outlet to the drain standpipe. It is secured to the pump

with a spring-type hose clamp.

16009485-01

Section 5. Water Related Components 5-2

Page 43

TUB TOP

The tub top is constructed of molded polypro

pylene. It is secured to the tub by eight (8)

tabs which have been formed around its up

per edge. These tabs snap over mating tab locks which are molded around the upper sides of the tub.

Overflow

Area

It is necessary to remove the tub top before

removing the inner tub. To remove the tub top, push down on it while disengaging the tabs from the tab locks on the tub.

Figure 5-3

Designed into the tub top is a drain groove, an overflow area, and a bleach dispenser. In case water should splash out of the basket during machine operation, the drain groove directs the water back into the tub. The over-

fiow area is located at the tub top rear and

will direct any overflow water away from the

drive motor. The bleach dispenser is func

tional only when used in conjunction with the

proper cabinet top assembly which is avail able on designated models.

A foam seal has been installed in a groove on

the underside of the tub top. The seal pro

vides a water seal between the tub and the tub top.

NOTE: When reinstalling the tub top, please

observe the following:

1. Make sure the foam seal is in place on the underside of the tub top.

2. Align the tab (Position 7:30- looking down on the tub top) having the larger opening

with its mating tab lock on the tub, and

lock it down around the tub. This seals

the top.

AGITATOR

The agitator is composed of an auger and a

base. The base is a four-vane design molded from a polypropylene compound. It is tough flexible material, highly resistant to breakage. The agitator is mounted on the splined shaft

and secured with the agitator retaining screw

and washer. A fabric softener dispenser snaps

over the top of the agitator (Figure 5-5).

16009485-01

Section 5. Water Related Components 5-3

Page 44

REMOVAL

1. Disconnect power to the unit.

2. Raise the top assembly and lean it back.

3. Remove the tub top.

4. Remove the agitator.

5. Remove the mounting screws.

6. Lift the inner tub up over the center post and out of the cabinet.

NOTE: When reinstalling the inner tub, be

sure to:

• Clean all connecting surfaces to ensure

proper sealing.

INNER TUB

The inner tub is perforated in a pattern de

signed to allow free flow of the wash and rinse water for maximum efficiency in removing sediment, soil deposits, and lint.

The inner tub is constructed entirely of

polypropylene and is secured to the basket hub assembly with four (4) mounting screws.

A foam gasket is installed between the basket

and the basket hub assembly.

• Position the basket on the basket hub assembly.

• Align the assembly and tighten all screws

securely.

OUTER TUB ASSEMBLY

The outer tub assembly is molded entirely of

polypropylene.

The outer tub assembly is mounted to the bear ing and seal housing and to the tub support. A foam gasket and a rubber seal are installed

between the tub bottom and the bearing and seal housing.

16009485-01

Section 5. Water Related Components 5-4

Page 45

REMOVAL

NOTE: When reinstalling the tub assembly,

be sure to:

• Protect the air bell nipple.

• Clean all connecting surfaces to ensure proper sealing.

• Position the gasket and seal on the bear ing and seal housing.

• Tighten all screws securely.

PUMP ASSEMBLY

Figure 5-7

1. Disconnect power to the unit.

2. Remove the inner tub.

3. Remove the front panel.

4. Disconnect the pump inlet hose from the outer tub outlet.

5. Remove the screws located on each side of the tub brace bolts which secure the

tub to the tub support.

6. Remove the mounting screws on the in side of the tub which mount the tub to the

bearing and seal housing.

7. Disconnect air dome hose.

8. PROTECT THE AIR BELL NIPPLE and lift

the tub from the cabinet.

Pump

Housing

Impeller

Seal

Assembly

NOTE: The air bell nipple is fragile, handle

carefully.

16009485-01

Plate & Pulley

Assembly

Figure 5-8

Section 5. Water Related Components 5-5

Page 46

The pump assembly is located on the right front corner of the washer base.

The pump pulley is engaged to the drive belt at all times and will be operating in both mo tor directions: Clockwise during agitation and counterclockwise during spin. The pump is

designed so it will only discharge water from the machine when it is running in the coun terclockwise, or spin direction.

REMOVAL

1. Disconnect power to the unit.

2. Remove the front panel.

3. Remove the drain hose from the pump outlet.

4. Disconnect the pump inlet hose.

5. Remove the three (3) screws which mount the pump assembly to the base.

6. Slide the pump to the rear to disengage

the belt from the pulley.

REPLACEMENT

Place one hand through the pump opening and lift belt. Set the pump pulley into the open ing and place the belt on the pulley. While holding tension on the belt to keep it on the pulleys, install the mounting screws.

DISASSEMBLY

1. Remove the pump from the washer base.

2. Remove the four (4) screws that secure the housing to the pump base, and lift off the housing.

3. Remove the screw that secures the impel ler.

4. Using two (2) screwdrivers, one on each side of the impeller, carefully pry the im peller off the spline shaft.

5. Work the seal mating ring and "O" ring up and off the shaft.

NOTE: If this is done carefully, the belt will

remain on the motor and transmission drive

pulley, making installation easier.

16009485-01

Section 5. Water Related Components 5-6

Page 47

WATER VALVE INJECTION SYSTEM

On some models the water valve is installed

at the top rear of the cabinet (Figure 5-1).

The following procedures are used to

remove the water valve.

Figure 5-1

To raise the top asssembly, insert a thin

bladed tool (such as a putty knife) between

the front panel and top assembly

approximately three inches in from each corner. While lifting up on the top cover assembly, press the blade against the wire clips, one side at a time to disengage them.

Lift the top cover up to a stationary position.

(Figure 5-2)

Figure 5-2

With the top assembly up you will have access to the water valve assembly.

(Figure 5-3)

Figure 5-3

16010280 (16009485-02)

SECTION 5. Water - Related Components

5-7

Page 48

The water valve is held to the cabinet by one screw. (Figure 5-4)

Figure 5-4

Remove the screw and swing the bracket and valve assembly to the right to release the bracket from the cabinet. (Figure 5-5)

The fill hoses can be removed at this point.

Figure 5-7

Remove the wiring from the water valve.

(Figure 5-6)

Remove the screw and using a small flat bladed screw driver, carefully pry up on the plastic tab to release the water valve from the bracket. (Figure 5-9)

Figure 5-5

Figure 5-6

BE SURE THE WATER IS TURNED OFF.

(Figure 5-7)

The water valve is held to the bracket by one

screw and a tab molded into the plastic part of the bracket. (Figure 5-8)

Figure 5-8

Figure 5-9

16010280 (16009485-02)

SECTION 5. Water - Related Components

5-8

Page 49

Slide the metal part of the bracket out of the

slots in the plastic part of the bracket.

(Figure 5-10)

4. Remove the agitator

5. Remove the mounting screws.

6. Remove the upper insulating ring.

(Figure 5-11)

Figure 5-11

Figure 5-10

Installation of the water valve is the reverse of the above procedure.

Stainless Steel Spinner Assembly

The stainless steel spinner is composed of a crimped stainless steel basket and a polypropylene spinner top. There is a lower insulating ring attached to the bottom of the spinner and an upper insulating ring that fits over the inner spinner bottom. These

insulating rings provide stability to the lower

spinner area. When replacing a spinner it is

recommended that the insulating rings be replaced with the spinner assembly.

Lift the spinner up over the center post

and out of the cabinet

Depress the six (6) tabs (Figure 5-12) that hold the spinner top to the spinner and remove the spinner top.

Depress the four (4) tabs that hold the

lower insulating ring to the bottom of the spinner and remove. (Figure 5-12) These four (4) tabs are not necessary for correct

machine operation. These tabs are used to assist in the manufacturing process. If

one or more break during removal, the

part is still functional. (See Figures 5-13

thru 5-14)

Removal:

1. Disconnect the power to the unit.

2. Raise the top assembly and lean it back.

3. Remove the tub top.

16010280 (16009485-02)

SECTION 5. Water - Related Components

5-9

Page 50

Spinner top tab

Figure 5-12

NOTE: When reinstalling the spinner assembly, be sure to;

• Clean all connecting surfaces to ensure proper sealing.

• Position the basket on the basket hub assembly.

• Align the assembly and tighten all screws securely.

16010280 (16009485-02)

SECTION 5. Water - Related Components

5-10

Page 51

SECTION 6. SUSPENSION SYSTEM

A WARNING

Warning - Always shut off electrical power to the

washer before beginning any

service repair procedures.

The washer utilizes a six-point suspension sys tem which consists of the suspension housing,

snubber pad, tub braces, suspension springs and related hardware.

The six-point system features six springs. Three

springs are installed between the base and the top of the tub brace. The other three are be tween the base and special spring hooks attached to the tub support perimeter (Figure 6-1).

16009485-01

Figure 6-1

Section 6. Suspension System

6-1

Page 52

SUSPENSION HOUSING

The suspension housing is fabricated of heavy

gauge steel. It rests on the raised domelike area in the center of the base and supports

the weight of the transmission, outer tub, and

spin basket (Figure 6-2).

3. Remove the brake assembly as detailed in

Section 7.

4. Remove screws securing housing to the lower bearing assembly.

TUB BRACES

The underside of the suspension housing pro

vides mounting for the snubber pad and also houses the brake assembly (Figure 2-2).

The bottom of the housing has been formed

into a spherical configuration and, along with the snubber, rides on the domed area of the base which allows the housing to move freely in all directions.

The top of the suspension housing is attached to the lower bearing assembly with three mounting screws. These screws thread from the underside of the suspension housing dome

into the die-cast bearing housing.

Suspension

The tub braces are attached at the top to the tub support, and to the suspension housing

at the bottom. The tub braces are located

behind iic\e tub support and suspension hous

ing where large, thread forming screws are

driven directly into the braces to secure them.

NOTE: Should a tub brace mounting screw

hole become stripped, a nut can be installed

on the thread forming screw.

The extended end of the suspension spring fits through an extruded hole in the tub brace just below the mounting screws.

SUSPENSION SPRINGS

The suspension springs hold the entire wash

unit in firm contact with the base. To reduce wear and prevent squeaks; grease has been applied to the friction points of the springs.

Figure 6-2

Service to the suspension housing, other than replacing it, is limited to replacing one of the other components that mount to the housing.

The replacement procedures for these com

ponents are detailed in the Transmission Sec

tion of this manual.

REMOVAL

1. Disconnect power to the unit.

2. Remove the transmission assembly as de tailed in Section 7.

16009485-01

REMOVAL

The suspension springs can be removed and replaced by using the spring tool, part num

ber 22002922 as follows:

1. Disconnect power to the unit.

2. Remove the front panel and rear access panel.

3. Pull or block the tub in the direction of the spring to be removed.

NOTE: Removing the tub top will allow the tub to travel further and extend the spring less.

Section 6. Suspension System 6-2

Page 53

The new suspension spring tool, part number 22002922, is used to remove and replace the suspension springs on the Atlantis and the

Performa washers, in addition to earlier mod

els of brand washers.

Adjustment Slots: Use of the upper slot of

the spring too! for the older Performa and

brand washers is recommended. Using the

lower slot on the Atlantis and the 7999

Performas washers will give the best results.

Then proceed with steps as follows:

a) . Hook the mouth of the too! under upper

hook end of spring.

b) . insert blunt end of the too! into the recoil

in the ball at the bottom of the spring.

c) . Squeeze the handies together and unhook

the spring hook from the brace.

Hook mouth of tool under upper hook end

' of spring

Insert blunt end of tool into recess in the base at the bottom of the spring

^ SL451TIF

Figure 6-4

4. Spring replacement is a reversal of the above.

NOTE: Be sure to grease the friction points of

the replacement springs before installing.

SPRING TOOL 22002922

Squeeze the handles together and unhook the spring hook from the brace

SL461T1F

Figure 6-5

IMPORTANT

No attempt should be made to remove or install the springs with

pliers, vise-grips or anything other

than the spring tool, as damage to

the springs could occur. When attaching the springs to the base for installation, make sure the spring end is protruding up,

through the small triangular cut

out next to the deboss.

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Section 6. Suspension System

6-3

Page 54

16009485-01

Section 6. Suspension System 6*4

Page 55

SECTION 7. TRANSMISSION AND RELATED COMPONENTS

A WARNING

This section will detail the servicing proce

dures on the transmission assembly which has splines formed on the agitator drive shaft.

Warning - Always shut

off electrical power to the washer before begin

ning any service repair procedures.

An "O" ring is installed on the shaft just above

the seal nut assembly to provide an air seal

when the agitator is installed.

16009485-01

Section 7. Transmission And Related Components 7-1

Page 56

SEAL NUT ASSEMBLY

The seal nut assembly consists of a lip seal against the agitator shaft.

The seal nut assembly is threaded to the bas

ket hub assembly. A small rubber gasket is installed in a groove on the bottom flange of the seal nut assembly. A foam gasket is placed

between the bottom of the spin basket and the

basket hub assembly.

The seal nut assembly can be removed after

removing the spin basket, and the agitator

shaft "O" ring.

REMOVAL

1. Lift the top cover.

2. Remove the tub cover.

3. Remove agitator.

4. Remove the Spin Basket.

5. Remove agitator shaft "O" ring.

6. Unthread the spin nut assembly from the basket hub assembly, by turning counter clockwise.

UPPER BEARING AND SEAL HOUSING

The glass filled copolymer bearing and seal

housing assembly slips over a machined area on the upper drive tube. The basket hub as sembly threads down over the drive tube and secures the bearing and seal housing together

(Figure 7-2).

The spin bearing and the tub seal are installed in a cavity in the center of the housing. The sheet metal tub support is attached to the under side of the housing with three (3) mounting screws. The spin bearing has been

pressed into the underside of the housing cav ity and is secured by the tub support. The center of the tub assembly mounts to the up per flange of the housing with a tub gasket and a tub seal installed between. The bottom of the tub sits on, and is attached to, the tub support.

REMOVAL

1. Disconnect power to the unit.

2. Raise top cover and remove front panel.

3. Remove the agitator, spin basket, agitator "O" ring, spin nut and outer tub assembly.

4. Remove the basket hub assembly by turn

ing it in a counterclockwise direction, us ing tool number 35-2968.

5. Remove the suspension springs with the spring tool.

6. Unbolt the tub braces from the tub support.

7. Lift up on the bearing and seal housing

with tub support attached.

8. To remove tub support, remove mounting screws from under the tub support.

16009485-01

Section 7. Transmission And Related Components 7-2

Page 57

TUB SEAL

TUB SEAL REPLACEMENT

The tub seal consists of the seal face and seal

body.

NOTE: All parts of the sea! must be replaced if either of the sealing surfaces is damaged.

The seal face fits into a recess in the under

side of the basket hub assembly. Also, the seal body installs in the cavity on the top side of

the bearing and seal housing. The spin bear

ing is located in a cavity on the underside of

the bearing and seal housing.

Each of the two sealing parts, the seal face and the seal body, have sealing faces which are brought into contact with one another

when the basket hub assembly is threaded

down on the drive tube. The springs in the seal body exert pressure to keep the sealing

faces in contact.

The tub seal fits into a recess on top of the

upper bearing and seal assembly.

Should the tub seal begin to leak or develop

excess seal drag, it must be replaced. The service replacement seal includes all the parts necessary to replace the entire seal. Be sure

to replace all parts of the seal even if only one

part is found to be damaged.

NOTE: If the tub sea! is being replaced be

cause it has begun to leak, the spin bearing is

probably damaged as well and should be re placed. To replace the spin bearing, the bear

ing and sea! housing must be removed as pre

viously described. This also allows access to

the tub seal for removal and replacement (re fer to steps 2 and 3 below when installing).

Removal and replacement of the tub seal can ONLY be accomplished as follows:

1. Follow steps 1 through 4 of the bearing and seal housing removal as previously described. The parts of the seal can now

be removed from their mounting recesses.

The carbon ring of the tub seal mates with the teflon ring underneath the spin basket hub.

Seal Face

Seal Body

Figure 7-3

2. Before installing the new seal, make sure both seal mating surfaces are free of for eign matter, then clean both surfaces with

an alcohol saturated cloth.

NOTE: Make sure no grease comes in con

tact with the mating surfaces of the seal.

NOTE: Do not use any agent other than al

cohol to dean the mating surface. Do not use any lubricant other than water.

16009485-01

Section 7. Transmission And Related Components 7-3

Page 58

UPPER SPIN BEARING The spin bearing is installed in a cavity on

the underside of the bearing and seal housing and is further secured in place by

the inner diameter of the tub support.

SPIN BEARING REPLACEMENT

1. Disconnect power to the unit.

2. Remove the upper bearing and seal hous ing and the tub support as previously de scribed.

3. Remove the seal body from the housing cavity.

4. Press the spin bearing out of the cavity

from the opposite side of the housing.

5. 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.

DRIVE PULLEY AND CAMS

The drive pulley and cam is located below the brake assembly on the drive 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 as sembly 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 spacer. The spacer locates against the bottom of the brake rotor and lining assembly.

(See the

illustration on page 7-6.)

The lower cam slips over the end of the drive

shaft where splines formed in the cam en gage with mating splines on the drive shaft end. This imparts 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 di

rection.

A washer and retaining ring secure the pul

ley and cam on the drive shaft. A plastic dust cap snaps to the underside of the pulley to keep the cam surfaces clean.

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 COUNTER CLOCKWISE, the upper cam and pulley ride up the lower cam approximately 3/16 of an inch before the driving shoulders on the pul ley 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 lin ing assembly off the brake stator. The brake is disengaged and the pulley will turn the lower cam and drive shaft to cause the trans mission to spin.

16009485-01

Section 7. Transmission And Related Components 7-4

Page 59

Transmission

' Housing

Assembly

Lower Bearing

And Housing — Assembly

Oil Seal'

Suspension Housing

Brake Spring Retainer

Retaining Ring

Drive Tube Splines

Thrust Bearing

Washer (Curved)

Outer Edge

Turned Up

j Drive Pulley I Assembly

Lower Cam ■

Spacer

Washer (thin)

~ Upper Race

O) t Washer (thick)

Lower Race Washer (thin)

Thrust

Brake Rotor

And Lining Assembly

Brake

Stator

16009485-01

Retaining

Figure 7-4

-Thrust Washer

Ring

■ Dust Cap

Section 7. Transmission And Related Components 7-5

Page 60

REMOVAL

1. Disconnect power to the unit.

2. Tip the unit over and remove the drive belt.

3. Remove the dust cap from the under side of pulley.

4. Remove retaining ring and washer from

end of drive shaft.

5. Firmly pull lower cam off the drive shaft splines, then slide the other parts off the shaft. This will also allow access to the

brake assembly for removal.

REPLACEMENT

After reassembling the components on the

drive shaft, it will probably be necessary to pull down on the shaft to take the end play out of it before the thrust washer and retaining ring can be reinstalled.

Counting the reference marks on the lower cam from right to left, the pulley hub shoul der should be positioned between refer ence marks 9 and 4 with 6 being the median (Figure 7-5).

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 marks have been molded around

the bottom outer edge of the lower cam as an

aid in checking the point of brake disengage ment (Figure 7-5). Each mark, from right to left, represents approximately .010 of an inch cam rise.

To Check Brake Disengagement:

1. Manually rotate the drive pulley in a slow counterclockwise direction until the brake starts to release and the transmission be gins to turn (Figure 7-5).

If the position of the pulley hub shoulder /s

not within these parameters and the brake has

started disengaging, adjustment is required.

To Adjust Brake Disengagement:

1. If the position of the pulley hub shoulder is less than 4 reference marks, remove the

standard (.062 thickness) thrust washer and replace it with a thinner (.032 thick ness) thrust washer (part number 35-2132). Recheck disengagement.

2. If the position of the pulley hub shoulder

is more than 9 reference marks, add a 35-2132 thrust washer (.032) to the standard thrust washer and recheck

disengagement.

16009485-01

Section 7. Transmission And Related Components 7-6

Page 61

BRAKE AND SNUBBER ASSEMBLY

DISASSEMBLY

NOTE: This is a dry operating brake

assembly.

The brake assembly is located inside the

domed area of the suspension housing and consists of the following components: brake spring retainer, brake spring, rotor and lining assembly and the brake stator.

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 mounting screws.

Spring pressure forces the rotor and lining assembly down on the brake stator and pre

vents 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 drive pulley hub travels upward, it compresses the brake spring and moves the rotor and lining assembly up the drive tube disengaging it from

the stator. The transmission is now free to

spin.

1. Disconnect power to the unit.

2. Remove the drive pulley and cam compo nents as previously described.

3. Using brake removal tool number LA-2004, proceed as follows:

• Pull out and remove "U" retainer from tool.

• Slip the splined end of the drive shaft

into hole located in the tool inner plunger.

• Looking at the side of the tool, align

slots on tool barrel and holes in tool plunger between splines and cham

fered shoulder of shaft.

• Slip "U" retainer through tool slots and

holes capturing the drive shaft behind

the chamfered shoulder.

• NO TE: Be sure the ”LT retainer is com

pletely through both sides of tool.

• Tighten tool nut to compress brake

spring until transmission turns freely.

Splines in the brake rotor hub mesh with splines on the drive tube end to provide posi

tive vertical movement for the rotor and lin

ing assembly. The splines are greased for ease of movement.

^ CAUTION

The brake assembly has a compressive spring force of approximately 200pounds. See the following instructions for disassembly.

16009485-01

• Remove six (6) screws which secure the brake stator and snubber to the

underside of the suspension housing.

• Loosen tool nut until the brake soring

reaches its free length.

• Remove "U" retainer from tool and re

move tool from drive shaft.

• Remove brake components.

Section 7. Transmission And Related Components 7-7

Page 62

BRAKE REPLACEMENT

SNUBBER REPLACEMENT

1. Apply silicone grease (part number

203959) to the splines of the drive tube and rotor, if needed.

NOTE: This is a dry operating brake assem

bly. Make sure no oH or grease comes in con

tact with the mating surfaces of the brake lin

ing and/or brake stator. Clean both surfaces

with an alcohol saturated doth before assembly.

2. Compress the brake spring until the stator

and snubber fit firmly against the suspen

sion housing before affixing the mounting screws.

3. Follow the drive pulley and cam reassem bly as detailed previously.

1. Remove belt.

2. Lift top cover and remove front panel.

3. Remove tub to pump hose and air bell hose.

4. Remove six suspension springs.

5. Lift complete tub and drive assembly out of cabinet, then carefully place onto floor. Be careful not to damage the air bell nipple on the outer tub.

6. Remove pulley and brake assembly.

7. Remove snubber.

8. To reassemble; reverse above steps.

16009485-01

Section 7. Transmission And Related Components 7-8

Page 63

TRANSMISSION ASSEMBLY COMPLETE (Non-Repairable)

Rack Gear

Carrier

Transmission

Cover

Cluster

Gear

Agitator

"shaft

Bearing

Housing

Transmission

Housing

Input Pinion

Output

j~ Pinion

Crank

Gear

-Wings

16009485-01

Lower Seal

SL295TIF

Figure 7-6

Section 7. Transmission And Related Components 7-9

Page 64

The die-cast aluminum transmission housing

has four studs pressed into its upper region. The studs provide mounting for the two crank and two cluster gears. The top cover is threaded into the lower housing. A sealant is used on the threads as a gasket material. A steel drive tube with a splined end is pressed into the bottom of the transmission housing. A sleeve bearing is installed in the lower I. D. of the drive tube. Another bearing is pressed into the lower housing above the drive tube. These bearings provide a path for the drive shaft to ride in. An oil seal is installed in the bottom of the drive tube. The oil seal can be replaced as a separate part.

Use tool part number 2000021. Remove

the old seal from the lower housing

(Figure7-7a thru 7-7c).

,7''

Oil Seal Replacement

The oil seal is located in the spline end of the drive tube. The seal can be replaced without removing or disassembling the transmission, as outlined below:

1. Disconnect power to the unit.

2. Remove the brake assembly to access the

oil seal (Figure 7-4).

Figure 7-7

Seal Removal Tool, Part Number 2000021

16009485-01

Section 7. Transmission And Related Components 7-10

Page 65

4. Place the new seal over the seal protector.

5. Place the seal protector tool, by sliding the tool over the drive shaft and up to the seal

cavity (Figure 7-7d).

7. Pull the rings with the insertion tool to re move, thus leaving the new oil seal on the

drive shaft (Figure 7-7f).

6. Slide the transmission seal driver (tool number 2000021) over the drive shaft un

til it makes contact with the drive washer.

Use a hammer to "tap" the seal into the end of the drive tube (Figure 7-7e).

LOWER BEARING ASSEMBLY

The lower bearing assembly provides lateral

support for the drive tube and shaft against

the tension of the drive belt. The top of the

suspension housing is attached to the under side of the lower bearing assembly.

The lower bearing assembly consists of a ball type bearing which has been installed in an

aluminum die-cast housing. The transmission assembly must be removed from the washer cabinet before the lower bearing assembly can be replaced.

16009485-01

Section 7. Transmission And Related Components 7-11

Page 66

REPLACEMENT

3. Remove the cams, drive pulley, and brake assembly.

IMPORTANT

Because the lower bearing assembly has been pressed onto the drive tube under approximately 1,000 pounds of pressure, a puller must be used to remove it. How ever, the puller forcing screw must not be used on the end of the drive shaft or the dutch assembly could be damaged. Instead, a simple pipe and cap assembly can be made to slip over the drive shaft, with end clearance, and rest against the end of the drive tube.

The puller forcing screw is used on the end of the pipe cap which directs the forward thrust

of the puller to the bottom of the drive tube.

REMOVAL

4. Remove the three (3) screws which

secure the suspension housing to the lower bearing assembly.

5. Slip the pipe and cap assembly over

the drive shaft and up against the

drive tube.

6. Using a puller with at least a 3 1/2 inch spread and sufficient reach to encompass the pipe and cap assem bly, remove the lower bearing as sembly (Figure 7-8).

NOTE: When installing the new lower bear ing assembly, be sure to drive against the in ner race only to avoid damaging the bearing shield which could cause premature Jailure.

1. Disconnect power to the unit.

2. Remove the transmission from the washer cabinet.

Transmission

Figure 7-8

16009485-01

Section 7. Transmission And Related Components 7-12

Page 67

DIAGNOSING TRANSMISSION PROBLEMS

V-

Listed below are most of the service com plaints which would normally be caused by a malfunctioning component of the transmis sion assembly.

Oil Leaks

Oil leaks can be caused by faulty seals, gas kets, or a loose fitting stud.

Slow Spin Speed

Slow spin speed can be caused by a binding tub seal and/or bearing, brake rotor assembly not disengaging properly, a slipping clutch spring, or an off balance load. The test that follows can be used to isolate the problem.

The torque available to drive the spin basket

is determined by the amount of drag or resis

tance presented by the tub seal and spin bear

ing, deducted from the input torque imparted

to the transmission housing assembly by the

clutch assembly.

The Following Torque Tests Will Allow a Prob

lem in the Spin Drive Train to be Pinpointed:

NOTE: Before starting these tests, the

washer should be operated in the agitation cycle with hot water for about two (2) min utes, and then for two (2) minutes in a spin cycle. This warms up the transmission oil and the spin drive train components.

Available Torque

TORQUE TESTING

A quick test of the efficiency of the spin op eration components can be made by placing a 3 1/2 pound weight, such as a bag of sand, in the washer basket and starting the machine in the spin cycle. If the basket appears to reach full spin with the weight, the machine com

ponents are performing as intended. If the basket does not attain full spin speed, the

torque test procedures as outlined in the fol

lowing paragraphs should be performed to determine the problem.

16009485-01

Place a 1/2 inch socket and torque wrench on

the agitator retaining bolt.

Depress the safety spin switch to allow the

washer to operate in the spin cycle, then while

reading the torque allow the wrench to turn slowly (about 6 R.RM.) through a complete 360 degree cycle. The reading should be between

18 and 25 inch pounds throughout the com plete 360 degree rotation of the wrench.

Section 7. Transmission And Related Components 7-13

Page 68

If the torque readings are within these limits, the washer is performing properly and any slow spin complaints can be assumed to have

been the result of off- balance loads.

If the torque reading exceeds 25 inch pounds, the input torque outlined later should be checked to determine the cause. Probable causes may be the drive shaft is binding in the transmission housing (drive tube) sleeve

bearings, or that the clutch spring is binding

on the drive shaft hub.

If the available torque reading is less than 20

pounds, follow the procedure for testing the

drag torque.

Drag Torque

Position the washer so the drive pulley can be accessed, and remove the drive belt. While holding the transmission to keep it from turn ing, manually rotate the drive pulley counter clockwise until the brake stays disengaged.

Make certain the drive pulley hub shoulder has rotated fully against the cams in the spin

driving position to ensure the complete dis

engagement of the brake. Release the trans

mission so it is free to turn.

Place a 1/2 inch socket and torque wrench on the agitator retaining bolt.

If the available torque reading is below 18 inch pounds and the drag torque reading is not over 4 inch pounds, follow the procedure for checking the clutch assembly as to its input

torque.

Input Torque

NOTE: it will be observed that the readings

used to check the input torque are slightly lower than the readings used to check the available torque. The reason for this is when the brake is disengaged, as in checking the available torque, the compressed brake spring exerts a downward force on the bot

tom of the dutch hub and thrust washers. This keeps the dutch spring from slipping quite as readily as in checking the input torque where the brake is engaged and the downward force on the dutch hub is mini

mized.

To check the input torque, remove the drive

pulley and position the washer so the scale on the torque wrench can be read when it is placed on the input (drive) shaft. Attach the torque wrench adapter firmly to the shaft,

place the wrench in the adapter and slowly

rotate the wrench in a counterclockwise di

rection. A properly operating clutch assem

bly will have a torque reading between 18 and

22 inch pounds.

Slowly rotate the wrench 360 degrees at ap

proximately 6 R.RM. and read the torque. If

the torque reading is over 4 inch pounds, re

move the brake stator (as detailed earlier in

this section) and recheck the drag torque.

If the torque reading is now under 4 inch pounds, the brake is binding and should be repaired.

If the reading is still over 4 inch pounds, the

tub seal and/or spin bearing is binding and

should be replaced.

16009485-01

If the input torque is less than 18 inch pounds, the clutch assembly is damaged and the com

plete transmission must be replaced.

If the input torque exceeds 22 inch pounds,

the drive shaft is binding in the sleeve bear

ings, and the complete transmission must be replaced.

Section 7. Transmission And Related Components 7-14

Page 69

TRANSMISSION REMOVAL

The transmission assembly can be removed from the washer cabinet after removing the

drive belt, spin basket, outer tub and the sus pension springs.

NOTE: // the "O" ring is to be reused, be ex tremely careful not to damage it during the

removal.

To assist in correctly positioning the tub, a

small indentation has been formed on the tub support just above one of the tub brace mounting areas. This is the left front tub brace.

When the tub is in proper position and ready to be mounted to the tub support, the large tub cover lock (on the side of the tub) should

be located directly above the indentation and

tub brace (See Page 7-16).

Remove the "O" ring and agitator once the drive train is back in place.

The transmission assembly, when removed as described, will have the related components assembled to it. These related components should be examined carefully before reinstall ing.

IMPORTANT

When installing the transmission, it is necessary that the tub be located on the tub support a certain way if all the mounting holes are to be properly aligned. This should be done before at tempting to mount the tub to the bear ing and sea! housing.

16009485-01

Section 7. Transmission And Related Components 7-15

Page 70

Tub

16009485-01

TUB TO TUB SUPPORT ALIGNMENT

Figure 7-10

Section 7. Transmission And Related Components 7-16

Page 71

SECTION 8. ELECTRICAL COMPONENTS & TESTING

ELECTRICAL TEST EQUIPMENT

The equipment required to service Maytag

products depends largely upon the conditions you encounter. Locating a malfunction will

Description

Analog Test Meter Digital Test Meter Clamp-on Ammeter AC Voltage Sensor

Analog Test Meter can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

often require the use of electrical testing equipment such as:

Part Number

20000005 20001001

20000002 20000081

Clamp-On Ammeter

can be used to detect shorts. Overloads on the circuit

breaker or fuse

can be traced to either the washer or circuit

breaker by check

ing the washer

current draw.

Digital Test Meter can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

16009485-01

AC Voltage Sensor

can be used to alert you if

AC voltage is present so proper

safety precautions can be observed.

The tip of the sensor will glow bright

red if voltage is between 110-600

volts AC.

Section 8. Electrical Components & Testing 8-1

Page 72

ELECTRICAL TESTS

TIMER

Warning - Always shut off

electrical power to the washer before beginning any service repair

procedures.

Grounded Components

When performing service diagnostics, re placements and repairs, always check to de termine whether all ground wires linking panel and components are reattached if

removed.

Voltage Checks

Generally, these checks will consist of taking readings at the wall receptacle to determine

the availability of voltage to the product. Volt

age checks on individual components of a product are not recommended due to the possibility of electrical shock. Component part

testing is best accomplished through conti

nuity checks with an Appliance Test Meter

{See Electrical Test Equipment).

NOTE: Use of the meter on voltage higher than the indicated range may cause perma nent damage to the meter. To prevent dam age, first select the highest range and then lower the range for readings which fall within the lower scale.

Set UP meter for use as follows:

Turn selector knob to desired meter func

tion and appropriate range.

Plug black lead into socket marked black {-). Plug red lead into socket marked red (+).

3. Place test leads into receptacle to deter

4. mine voltage available.

The timer is mounted inside the control con

sole assembly. The timer shaft protrudes

through the control panel and provides for the

selection of the various machine cycles available.

The timer is an incremental advance, rotary type driven by a synchronous motor. The timer controls and sequences the numerous

steps and functions involved in each machine cycle. It accomplishes this by providing power to the various electrical components through the opening and/or closing action of timer contacts.

A typical timer and plug connector are illus trated in Figure 8-1. The timer has all the con

necting points brought out to miniature spade terminals. These terminals are centralized and aligned on one side of the timer to form a terminal board.

The connecting wires from the wiring harness

are terminated in a compatible connector which plugs into the timer terminal board.

Since space is notably limited on the timer terminal board, terminal identification is pro

vided by a sticker attached to the side of the

timer. When referring to the sticker for termi

nal identification, the external timer motor

wires can be used for orientation.

Another source for terminal identification is

the schematic diagram which is supplied with

each washer. The schematic diagram not only identifies the terminals, but also the plug con nector terminals and their respective wire colors.

16009485-01

Section 8. Electrical Components 8 Testing

8-2

Page 73

TERMINAL BOARD

Figure 8-1

REMOVAL

Timer removal procedures are detailed in Sec tion 4 under Control Pane! Assembly Re

moval.

Timer Testing

The timer can be tested by using an ohmmeter and the Timer Sequence Chart as detailed in the following.

TIMER SEQUENCE CHART

The following chart depicts a typical Timer Sequence Chart which can be found on the

schematic diagram. It denotes the internal

timer contacts which are opened and/or

closed by the timer cam switches at any in

terval during a machine cycle.

Listed down the side of the chart at the left, each contact in the timer is identified as be ing controlled by a particular cam. The func tion of each contact and its terminal designa tion is also indicated.

Across the bottom of the chart are the vari

ous machine cycles available for selection, and

the timer increments at which the cycle be

gins and ends. The increment, or degree di-

vision, indicates the travel of the timer through

a cycle.

The heavy black lines to the right of the termi

nal column indicate a closed contact. If the contact is open, there is a break in the heavy black line.

EXAMPLE

Cam 0 shows the switch arm dosed, mak ing contact between Line 1 and wire 44 from increments 4 through 18. This cir cuit is the cam controlled ON/OFF switch in the timer and at increment 19 it opens,

shutting the machine off (Figure 8-2).

Using the Time Sequence Chart

The sequence chart used in conjunction with an ohmmeter can be quite effective when

attempting to verify or diagnose problems in

the timer, wiring, or other electrical parts.

In order to establish exactly which electrical components should be operating during any given time throughout the various machine cycles, it is only necessary to determine what particular cycle and phase of the cycle you are interested in.

Once the cycle and phase have been ascer tained, locate these along with the increment at the bottom of the Timer Sequence Chart. When the cycle, phase and increment are lo

cated, follow the increment from the bottom to the top of the chart noting which timer con tacts are involved in the area of concern.

Once the timer contacts have been deter

mined, the electrical circuits involved can be traced on the connection diagram by incre

ment or by phase, if necessary.

16009485-01

Section 8. Electrical Components & Testing 8-3

Page 74

A point to point continuity check can be made to isolate the trouble either in the timer, wiring

harness, or other electrical components after

the circuit has been traced.

Figure 8-2

AUTOMATIC TEMPERATURE CONTROL BOARD

The temperature control board receives in formation from the water temperature switch

as to the user's water selections. The ther mistor located in the water valve, provides inputs to the board, as to what temperature the incoming water is. This information com bined with the selections on the temperature control switch determines the output signals to the water valve.

Temperature control boards are found on

models MAV6000, MAV6057, MAV7000, MAV7057, MAVBOOO, MAV8057 and MAV8500 only. Two different types of boards are used on the washers. An analog temperature board is used on models MAV6000, MAV6057, MAV7000 and MAV7057. A microprocessor temperature control board is used on models MAV8000, MAV8057 and MAV8500.

SL281TIF

The target cold temperature is a 75° F., plus or

minus 5° F. Targeted Warm temperature is 95° F, plus or minus 5° F.

Keep in mind that the control system is in

tended to warm wash fills when necessary to

the target temperature. It will not cool a fill when the inlet temperatures exceeds the mini

mum target temperatures.

Analog Temperature Control Board

The analog board, depending on the water

temperature selected, will monitor the water

temperature and will turn the valves ON and OFF to maintain proper water temperature. When the water temperature is set on Warm, both valves are on. The longer the valve is ON, the cold water temperature in the water lines eventually drops lower and lower.

16009485-01

Section 8. Electrical Components & Testing

8-4

Page 75

When this occurs, the АТС will shut the cold wa ter valve off for a brief period of time and turn it back on to maintain a proper temperature flow.

You will note in the following table, the only

combinations where the temperature control board is active (BOLD) are Warm and Cold

Rinse fills are not temperature controlled unless

Warm Rinse is selected. During activation, the

indicator light is only ON when the board is con

trolling water temperatures. The following chart (Figure 8-3) depicts the

with the temperature control selector in the

ON position. When Cold is selected and the

temperature sensed by the thermistor is too

low at the valve, the Hot valve will be activated.

philosophy on how the Automatic Tempera

ture Control Board operates. Note, the Ther

mistor Temp represents the temperature sensed by the thermistor in the water valve.

When Warm is selected and the temperature

sensed by the thermistor is too cool, the Cold valve will be shut off.

The outputs are indicative of the board send

ing voltage to the water valve solenoids.

Analog Automatic Temperature Control (АТС) Truth table:

Water Temp Selections

АТС Selector

Thermistor Temp

Hot Valve

Output

Hot Off Low On

Warm

Cold Off Low

Hot Off High

Off

Low On On

Off

Warm Off High On On

Cold

Hot On

Warm On

Cold

Hot On

Warm On

Cold On

Analog Temperature Board Tests

In order to test the board for proper function, we need to monitor incoming and outgoing signals to and from the temperature control board. The chart shown on the next page pro vides a listing of the eleven terminal pin con nections (Figure 8-4) of the board, their source or function, and identifies outputs/inputs

(Figure 8-5).

Off

High Off On

Low On Low On Off

Low On On High On Off High On

High

Figure 8-3

Off

PK PU GY

3 47

11 10 987654321

Cold Valve Output

Off

On Off

Off

On On

WIRE INSERTION SIDE

Figure 8-4

35 13

Indicator Light

PLU G

11 7N

Off Off Off Off Off Off Off On On Off On

SL282TIF

16009485-01

Section 8. Electrical Components & Testing 8-5

Page 76

ANALOG TEMPERATURE CONTROL BOARD DIAGNOSTICS FOR MAV6000, MAV6057, MAV7000 and MAV7057

OUTPUT/

PIN SOURCE

Neutral

Not Used

3 Cold Valve Output

4 Hot Valve

5 Indicator Light

Timer (12 T Contact)

TC Disable Input

8 Thermistor

9 Temp Selector

Switch Cold Wash

INPUT

Input

Output OR

Output YL

Input BK

Input GY

Input PU 6 * **

WIRE

COLOR

MEASURE

TO PIN #

Line 120VAC

6 *

11 10K-100K

VOLTS

OHMS

120VAC

OVDC

3-24VDC

OHMS

OVDC

CONDITIONS

TC Option Selected Warm

or Cold Wash Selected

Wash Cycle on Timer

TC Option Deselected TC Option Selected

Room Temperature

Warm or Cold Wash Selected

10 Temp Selector Switch

Hot Wash

11 Thermistor

* Reference DC Voltages to Line 1.

* * Temperature only occurs during Cold or Warm wash fills.

Input

Figure 8-5

6 * **

MICROPROCESSOR TEMPERATURE CONTROL BOARD

The microprocessor temperature control

board has the temperature control features of the analog board, with the additional func tions of finger tip faucet, rinse fills, spray rinses

ture fill. All fills after this will not be tempera ture controlled through the АТС. Meaning the Temperature fill will be what is selected on the temperature selection switch.

and end of cycle signal. On Model MAV8500 only, the АТС temperature control can blend the proper selected water temperatures dur

ing the initial water fill. To activate this fea ture, the Temperature Control option must be

activated. The first fill at the initial start-up of the washer will have a blended water tempera

Finger Tip Faucet

The faucet is controlled through a rocker

switch on the control console. The fill circuit is fed through the temperature control board

then to the water valve. As long as the pres

sure switch is not satisfied, the finger tip

OVDC

10K-100K

OHMS

Hot or Warm Wash Selected

Room Temperature

16009485-01

Section 8. Electrical Components & Testing

8-6

Page 77

faucet option will function. When the pressure

switch is satisfied, the faucet will no longer function.

End of Cycle Signal

The signal will sound at the end of the final rinse.

Note, the signal will not sound for 150 seconds into the cam closure. Software built into the board enables the board to perform this func

tion. The washer will continue to spin for 15-20

seconds at the end of the signal. On Model

MAV8500 only, the reminder chime will sound repetitively every four minutes. This will con tinue until the timer knob is depressed, the re

minder chime option switch is deselected or the water fill level is increased.

Signal intensity is controlled by the user us ing a rocker switch on the control console. The rocker switch can be checked at the temperature control board terminal con

nector (Figure 8-6) using the following chart, along with other machine functions

(Figure 8-7).

TEMPERATURE CONTROL CONNECTOR

11 13

19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

GY PK BUPUBR PU RD OR YL

47 47 4

51 3 27 26 29

MRBiNUIRICNtW

Figure 8-6

BU OR

RD YL

LI 35

37 39

PUX

16009485-01

Section 8. Electrical Components & Testing 8-7

Page 78

MICROPROCESSOR TEMPERATURE CONTROL BOARD DIAGNOSTICS MAV8000 & MAV8057

OUTPUT/

1 Neutral

2 Not Used

3 WaterValve-Hot Output

5 Indicator Light Output YL

6 Line 1 Input

9 Chime Soft Input

10 Chime Loud Input RD

12 Temp Control Enable

SOURCE

Cold Valve Output

Fingertip Faucet Input

Timer Input (Chime)

Temp Selector

Switch - Cold Wash Input PU

INPUT

Input WH

Input YL

Input

WIRE

COLOR

MEASURE

TO PIN #

BU 1

RD RD PU

VOLTS

OHMS

Line

1 120VAC

6 12-24VDC Soft Chime Selected

6 12-24VDC

6 OVDC

120VAC

OVDC

12-24-24VDC

12-24VDC

5VDC

12-24VDC

OVDC

12-24VDC

CONDITIONS

АТС Option Selected Warm or Cold Wash

FF Button Not Pushed FF Button Pushed

Contact 9T or9B Closed Contact 9T or 9B Opened

Loud Chime Selected

Warm or Cold Wash

Selected

Warm or Cold Wash

Deselected Option Deselected Option Selected

Fingertip Faucet

14 Chime Switch

Temp Selector Switch - Hot Wash

16 Thermistor

Thermistor Temp Selector

Switch - Warm Risnse

19 Cold Rinse Input BU

16009485-01

Output PU 6

Output

Input

Input GY

Input

Input OR 6 OVDC Warm Rinse Selected

Figure 8-7

24VDC

6 OVDC

24VDC

12-24VDC

10K-100K

OHMS

10K-100K

OHMS

12-24VDC Warn Rinse Deselected

12-24-VDC

Section 8. Electrical Components & Testing

Hot or Warm Wash

Selected

Hot or Warm Wash Deselected

Cold/Warm Rinse

Selected in Rinse Fill Cold/Warm Rinse Deselected in Rinse Fill

8-8

Page 79

MICROPROCESSOR TEMPERATURE CONTROL BOARD DIAGNOSTICS FOR MODEL MAV8500

1 Neutral

2 Not Used

4 Cold Valve

6 Line 1

7 Fingertip Faucet

SOURCE

WaterValve-Hot Output OR

Indicator Light Output

Timer Input (Chime)

Chime Soft

Chime Loud Temp Selector Switch - Cold Wash

Temp Control Enable

OUTPUT/

INPUT

Input WH

Output

Input BU 1 120VAC

Input PU 6

Input

Input OR 6

Input

Input BU

Input BR 6

WIRE

COLOR

YL 1 120VAC

RD 6 12-24VDC Loud Chime Selected

MEASURE

TO PIN #

Line

1 120VAC

6 OVDC

VOLTS

OHMS

120VAC

OVDC

12-24VDC

OVDC

5VDC

12-24VDC

5VDC OVDC

12-24VDC

CONDITIONS

АТС Option Selected Warm or Cold Wash

FF Button Not Pushed FF Button Pushed Contact 9T or9B Closed Contact 9T or 9B Opened

Soft Chime Selected

Warm or Cold Wash Selected Warm or Cold Wash Deselected Option Deselected Option Selected

Fingertip Faucet Output PU

14 Chime Switch

Temp Selector Switch - Hot Wash Input OR

Thermistor Input

18 Line 1

19 Open

16009485-01

Output BU 6

6 OVDC

GY 17

GY 16

Input

Figure 8-7A

24VDC

Hot or Warm Wash Selected Hot or Warm Wash

5VDC

10K-100K

OHMS

10K-100K

OHMS

120VAC

Section 8. Electrical Components & Testing 8-9

Deselected

Signature Circuit to tell

Board this is for a MAV8500

Page 80

TIMER LINE SWITCH INPUT

The finger tip faucet is the only control board function that will operate with the timer knob

pushed in. This is monitored through cam 0 of the timer. Line voltage is routed through

the timer and when the timer knob is pulled

out, cam 0 closes and routes line voltage to a 1/4" spade terminal labeled Timer Sense on

the temperature control board.

TEMPERATURE CONTROL BOARD TEST PROCEDURE(MAV8000, MAV8057 & MAV8500)

6. Switch TEMPERATURE CONTROL OFF.

7. Switch SIGNAL LOUD SWITCH OFF.

8. Switch TEMPERATURE CONTROL ON.

9. Switch SIGNAL LOUD SWITCH ON.

10. End-of-Cycle Signal will sound and the Temperature Control Indicator Lamp will light and remain on for 20 seconds. (Should the Indicator light blink at a fast rate of 0.2 seconds on, 0.2 seconds off, this is an indication that the water valve ther mistor is either open or shorted.)

This procedure exercises all circuit board in

puts and outputs such as thermistor, tempera ture signal light and audible signal. The only exception is the connection to the "WHEN TO CHIME" cam of the timer.

1. Turn Temperature Control OFF. Check fill in both wash and rinse at each of the vari

ous temperature settings for proper opera

tion. This checks outputs of the tempera

ture option switch and the water valve so

lenoids. If all are OK, proceed to step 2.

Note: if a mistake is made in executing

the following sequence, it may be repeated at any time by returning to step 2.

2. Confirm that the Temperature Control Switch is OFF, End-of-Cycle Signal Switch is OFF. Note:

The timer can be set to any

position.

(Steps 3 through 9 must be accomplished

within 20 seconds from start to finish.)

WATER VALVE

The water valve is secured to a bracket in side the left rear cabinet area by two (2)

mounting screws. The bracket may be re moved for service.

The water valve has two solenoids, one on

the "HOT' water side and another on the

"COLD" water side. These solenoids are en

ergized through the timer, temperature con

trol board (MAV6000, MAV6057, MAV7000,

MAV7057, MAV8000, MAV8057 and MAV8500) and water temperature selector switch and will allow COLD, HOT or WARM (a mixture of HOT and COLD) water to enter

the tub as directed.

Testing Water Valve

The water valve can be accessed by raising

the top. The valve can be tested using an ohmmeter and performing the following:

3. Press and release the FINGER FAUCET switch. (Water will flow for 7 seconds un

til step 9 is complete, presuming the pres

sure switch is not satisfied.)

4. Switch TEMPERATURE CONTROL ON.

5. Switch SIGNAL LOUD SWITCH ON.

16009485-01

1. Disconnect power to the unit.

2. Remove all wiring from the solenoid(s) being tested.

3. Place the test leads across the terminals of the solenoid being tested. The meter should indicate continuity.

Section 8. Electrical Components & Testing

8-10

Page 81

NOTE: Normal resistance of each coii is

approximateiy 500-1000 ohms.

MOTOR

4. Place one test lead on one terminal of the solenoid being tested, and place the other lead on a suitable ground. The meter should not indicate continuity.

Thermistor Check

The thermistor in the water valve changes in

resistance in direct relationship to water tem peratures. The Thermistor is a NTC (Nega

tive Coefficient Thermistor) type. As the tem

perature rises the resistance value will de crease. When the temperature drops, the re sistance value will increase

1. Run a partial hot water fill and check the

ohm resistance of the thermistor circuit. To check the ohm resistance, puli the tem

perature control wire harness connector

off the temperature control board and lo

cate the number 16 and 17 sockets in the connector (Figure 8-8).

2. Run a cold water fill and measure the re sistance again. There should be a notable difference in the resistance readings.

Ail washers are equipped with split phase re versible motors (Figure 8-9). The motor is 1/2 H.R, two speed. The motors have a four (4) pole and a six (6) pole winding and run at 1725

R.RM. or 1149 R.RM. respectively.

Each motor has an internal thermal overload protector which opens when exposed to ex

cessive amperage draw. The overload pro tector is wired in series with line voltage to the motor. When the switch opens, the mo tor will shut down. Although the thermal over

load protector switch will reset, it is not field

serviceable.

MOTOR SWITCH

The externally mounted motor switch is a

mechanically operated device used to control

the power input when the motor starts.

The motor switch has two sets of contacts

which operate simultaneously. One set con

trols the start winding circuit. The second

set feeds the normal speed circuit, and then switches the circuit to the slow speed winding.

On two speed motors it is necessary that the

TEMPERATURE CONTROL CONNECTOR

4 pole winding, the normal speed winding, be in the circuit each time the motor starts even

OR GY GY PK BUPÜBR PU RD

47 47 4 25 51 3

19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

OR YLPUBK YL BU OR

27 26

29 LI

Figure 8-8

35 37

fUK

if the speed selector control is set for slow speed operation.

When the motor reaches switching speed, the

switches move opening the circuit to the start winding and at the same time transferring the power from the normal speed winding to the slow speed winding.

16009485-01

Sections. Electrical Components & Testing 8-11

Page 82

Motor and Switch Operation

The polarity of the magnetic field of the start winding, in relation to the magnetic field of the run winding, determines the direction of the rotation of the motor.

LINE

MOTOR

Figure 8-10

COMMON

As the motor starts running, the motor switch moves opening the start winding circuit. The motor is running on the normal speed wind ing in the direction indicated (Figure 8-11).

The timer is used to reverse the polarity of the

start winding field.

Side A of the start winding is connected to the common side, B is connected to the line through the motor switch. The speed selec tor switch is set for normal speed operation

(Figure 8-10).

Figure 8-11

The timer selection has been changed, now

side A of the start winding is connected to the

line; side B is connected to the common side through the motor switch. The speed selec tor switch is set for slow speed operation.

16009485-01

Section 8. Electrical Components & Testing

8-12

Page 83

The motor switch is supplying power to the

normal speed motor winding (Figure 8-12).

draw. The contacts reset automatically when they cool off. If the contacts open, all power to the motor is cut off.

LINE

TIMER

SPEED

SELECTOR!

SWITCH

_____

MOTOR

ROTATION

Figure 8-12

MOTOR

SWITCH

JLU

COMMON

TWO

SPEED

MOTOR

start’

jmim

©SLOW®

innJWUl

SPEED

NORMAL

TOOW

SPEED

As the motor starts running, the motor switch

moves opening the start winding and trans ferring the power from the normal speed winding to the slow speed winding. The mo

tor is running on the slow speed winding in the direction indicated.

If the overload protector opens repeatedly, check the following:

1. A binding condition in the motor or in the drive train.

2. Poor electrical connections causing a low voltage situation.

3. The motor overheats because of a re stricted air flow. (The motor can get as hot as 200 degrees Fahrenheit and still be operating within design specifications.)

MOTOR CIRCUIT TESTING

The motor overload protector, motor starting

switch and the motor are the three compo nents that should be tested if the motor as sembly is suspected of being the cause of a service problem. The power cord should be unplugged and all wiring connections from the machine wiring harness to the motor start ing switch should be disconnected before any testing is done to the motor.

Overload Protector

The overload protector is built into the motor and is not serviceable. The contacts of the

overload protector are normally closed and open in response an excessive amperage

16009485-01

Wires

Circuit

Start Winding RD-BK 2-*

Slow Winding YL-BkWVH 1 -3

Normal Winding BK/WH-PU 1 -V

Thermal Protector BK/WH - OR 1 -P

Involved

Switch Terminals

OHMS

Motor Switch & Thermal Protector Checks

Remove the wire harness connector from the motor and use an Ohmmeter to check the motor terminals listed below (See Figure

8-13).

Section 8. Electricai Components & Testing

3.1

2.3

1.3

8-13

Page 84

Motor

If the motor runs in one direction but will not reverse, the problem is in the timer or wiring harness, not in the motor. The same motor components are used when the motor runs in either direction; the only change is in the electrical circuitry feeding the start winding which is controlled by the timer and related wires.

A two conductor test cord which has two fe male spade connector terminals on each con ductor is needed to test the motor operations

(tool number 038183).

To test a motor, connect the two spade con nectors on one side of the cord to terminals 1 and 4 on the starting switch and the two con nectors on the other side of the cord to the starting switch terminals 2 and 3.

To check the slow speed operation, change the

lead on terminal 3 to terminal 5. Be sure to test the motor in its normal vertical position.

If the motor will not start, or if it starts but does not attain normal speed, check the op eration of the external motor switch, replace the motor.

NOTE: Normal resistance of the motor wind

ings should be:

NORMAL SPEED 1.3 OHMS SLOW SPEED 2.3 OHMS START

3.1 OHMS

MOTOR MOUNTING

Assembled to the motor studs and secured

by locknuts are rubber isolators and washers which sandwich nylon washers and slides through slots in the mounting plate. A nylon

slide is attached to the motor bottom, and a

pivot spring installs between the motor and

mounting plate.

In operation, the nylon washers and slides ride

in the slots in the mounting plate, and the slide

rides the mounting plate. The motor is free to pivot in either direction and the pivot spring

ensures proper belt tension on the motor

pulley.

The mounting plate has rubber mounting

cushions assembled to its rear corners, and

the entire assembly is mounted to the washer

base by two (2) large hex head screws.

The motor mount system consists of a motor

and mounting plate assembly as shown in

(Figure 8-14).

16009485-01

REMOVAL

1. Disconnect power to the unit.

2. Tip washer and remove drive belt.

3. Remove the front panel.

Section 8. Electrical Components & Testing

8-14

Page 85

4. Remove the two (2) large hex head screws which secure the motor and plate assem

bly to the base.

5. Remove the screw which secures the wir ing clamp to the top of the motor. Discon nect the necessary wiring.

6. Remove the motor and plate assembly

from the base.

REMOVAL: It is necessary to use a puller

with at least a three (3) inch spread.

INSTALLATION

1. Remove the shaft coverat ther rear of the motor and "backup" the end of the motor shaft with a socket. This will prevent in ternal damage to the motor when tapping on the opposite end of the shaft during pulley installation.

7. To separate the motor and plate assembly, remove the motor pulley and the two (2) lock nuts which secure the components to

the motor studs.

IMPORTANT-

After reassembling the motor to the plate, be sure the nylon washers and

slides move freely in the radius slots. In cases where washers and slides do not move freely, the sides of the slots may be bent and require alignment.

Check the slots for a rough surface or for oil and dirt which must be re

moved.

The washers are equipped with a nylon/glass filled motor pulley. This pulley is pressed onto

the motor shaft where splines formed inside the pulley mesh with mating splines on the

motor shaft. Small barbed fingers molded onto the front of the pulley hub, snap into a groove located at the end of the motor shaft.

2. With the hub fingers out, positon the pul ley over the motor shaft until the splines begin to mesh.

3. Place a 1/2 inch I.D. socket, pipe, etc., over

the hub fingers and gently tap the pulley

over the splines until it bottoms out on the shaft shoulder (Figure 8-15).

NOTE: When the pulley has been properly

positioned against the shaft shoulder, the

hub fingers at the pulley front should be

located in the shaft groove.

4. Replace the shaft cover at the rear of the motor and reinstall.

NOTE: The center hole of the motor plate is

large enough to provide clearance for the pul ley during motor and plate assembly.

To eliminate the necessity of having to remove and replace the nylon/glass filled pulley when

installing a replacement motor, the complete motor/pulley and plate assembly will be ser

viced (as shown in the illustration) ready to

be mounted to the base. However, should a nylon/glass filled pulley become damaged in

the field, a service replacement pulley is avail

able. The pulley can be removed and replaced as follows:

16009485-01

Figure 8-15

Section 8. Electrical Components & Testing 8-15

Page 86

WATER LEVEL SWITCH

Water Level Switch Operation

The water level switch is secured to the con trol console by means of two locking tabs on the switch body

[Figure 8-16).

The water level switch is operated by a col

umn of air that becomes trapped in the pres sure switch hose. This hose is connected be tween the diaphragm section of the switch and air bell which is located on the lower por tion of the tub. As water enters the tub, a

small amount enters the pressure switch hose thereby trapping air in the hose. As the water

level increases in the tub, this column of air

becomes compressed and exerts pressure on the water level switch diaphragm. When the

proper water level is reached the diaphragm

actuates a single pole, double throw switch in the water level switch assembly.

The water level switch is quite sensitive and

requires only about 0.6 RS.I. to activate it at the maximum fill position.

The circuitry of the machine is designed to put the switch in control of the water mixing valve or the timer motor and drive motor dur ing various phases of the wash cycle.

During the fill cycle, the switch makes a cir cuit between terminals 7 and 15 which ener gizes the mixing valve circuit(s).

(Figure 8-

16) When the switch is activated, it opens the

circuit between terminals 7 and 15 which shuts off the water, and closes a circuit be tween terminals 7 and 16 which energizes the timer motor and drive motor.

Testing the Water Level Switch

The water level switch can be accessed as pre viously detailed in Section 4 under Control Pane! Disassembly. It can be tested using an

ohmmeter and executing the following.

It is most important that the hose connections

to the switch diaphragm and air bell nipple

be airtight, as the smallest air leak will cause erratic operation.

IMPORTANT

_____________________

The water level switch is adjusted and

sealed at the manufacturing source and no

adjustments should be made in the field.

Whenever the hose is removed from the wa ter level switch or the air bell nipple, DO NOT

reconnect the hose until all water has been drained from the tub. To ensure proper op eration of the water level switch, the hose

MUST NOT have any water in it when rein

stalled on the switch. When reconnecting the hose, be sure to slip it over the nipple(s) as far as possible.

16009485-01

Section 8. Electrical Components & Testing

8-16

Page 87

When the tub is empty, ohmmeter leads

placed across terminals 7 & 15 should in

dicate continuity.

Model MAV4500/5000

2 POSITION -

OPTION SWITCH

When the tub is filled as per the switch

setting and corresponding water depth (re

fer to Specifications Section under Water

Level), terminals 7 & 15 should be open and

terminals 7 and 16 should indicate conti

nuity.

Fill Level Terminals Status

Empty 7& 15

7& 16

Full 7& 15

7& 16

Closed Open Open Closed

SELECTOR SWITCHES

Selector switch charts indicating the contact alignment for the various positions of each switch used appear on the schematic diagram.

These charts should be referred to for specific

information on the model being serviced.

Testing Selector Switches

FUNCTION

SUPERWASH

NORMAL

CLOSED CIRCUITS

BK-RD

OR-RD

Model MAV5057

3 POSITION - OPTION SWITCH

FUNCTION

SUPERWASH EXTRA RINSE

CANCEL

*1/4" Terminal -

CLOSED CIRCUITS

BK*-RD*

BU**-RD**

OR*-RD*

**3/16" Terminal

Model MAV6000/6057/7000

4 POSITION - OPTION SWITCH

FUNCTION CLOSED CIRCUITS

The selector switch can be accessed as previ

ously detailed in Section 4 under Control

Pane! Disassembly. It can be tested using an

ohmmeter and executing the following:

• Remove all switch wiring and perform continuity checks using the respective se lector switch chart to indicate the proper continuity.

OPTION SWITCH

The option switches allow the user to select

various options regarding Superwash, spin speeds and end of cycle signal.

16009485-01

SUPERWASH

EXTRA RINSE BU^^-RD*""

AUTO. TEMR (OPEN)

CANCEL

*1/4“ Terminals - **3/16" Terminals

Section 8. Electrical Components & Testing 8-17

BK*-RD*

BR**-RD**,

OR*-RD*

Page 88

Model MAV7057

Model MAV8057

3 POSITION - OPTION SWITCH

FUNCTION

EXTRA RINSE

SOAK ONLY

CANCEL

*1/4 Terminal - **3/16" Terminal

Model MAV8000

4 POSITION - OPTION SWITCH

FUNCTION CLOSED CIRCUITS

EXTRA RINSE PU**-GY**

CLOSED CIRCUITS

BU**-RD**

(OPEN)

BK*-BK*

4 POSITION - OPTION SWITCH

FUNCTION CLOSED CIRCUITS

SECOND RINSE

GENTLE SPIN OR*-PK*

SOAK ONLY

CANCEL

*1/4" Terminal -

**3/16" Terminal

PU**-GY**

(OPEN)

BR*-PU*, BK*-PK*,

RD**-GY**

Model MAV8500

4 POSITION - OPTION SWITCH

FUNCTION

EXTRA RINSE PU*-BR*

CLOSED CIRCUITS

NORMAL RINSE

GENTLE SPIN OR*-PK*

NORMAL SPIN

*1/4" Terminal -

**3/16" Terminal

Models MAV7057/8000/8057

4 POSITION - OPTION SWITCH

FUNCTION

SUPERWASH GENTLEWASH TEMP CONTROL

CANCEL

CLOSED CIRCUITS

BK*-RD*, BK*-BU*

OR*-BU*, RD*-OR*

BK*-BU*. OR*-RD*

RD**-GY**

BK*-PK*

(OPEN)

BR**-RD**,

REMINDER CHIME RD**-GY** CLEAN LIGHT

CANCEL BK*-PK* * 1/4" Terminal **3/16" Terminal

OR*-PK*

WATER TEMPERATURE

The wash and rinse water temperatures can be selected via the water temperature switch on the control console for some models. On upper end models, the water temperature is controlled by a temperature control board, lo cated on the back of the timer. (See section

discussing Temperature Contrai Board on

page 8-4 thru 8-5.)

16009485-01

Section 8. Electrical Components & Testing

8-18

Page 89

LID SWITCH

Models MAV4057/4500/5000/5057

8000/8057

WATER SELECTOR SWITCH

POSITION CIRCUIT

H-C BK*-PK*

w-w BK*-PU*, OR**-BU**,

BK*-PK*

w-c

BK*-PK*, BK*-PU*

c-c BK*-PU*

* 1/4" Terminals - » 3/16“ Terminals

Models MAV6000/6057/7000/7057

WATER SELECTOR SWITCH

POSITION CIRCUIT

H-C

BK*-PK*, BU**-OR**

w-w BK*-PU*, BK*-OR**

BK*-PK*

w-c BK*-PK*, BK*-PU*,

BU**-OR**

c-c BK*-PU*, BU**-OR**

* 1/4" Terminals ** 3/16" Terminals

The lid switch assembly is designed to inter

rupt voltage to the wash motor in the event the lid is raised. The switch is a single pole, throw type with normally open contacts.

The normally OPEN set of contacts in the

switch are held CLOSED by a fusible link

(Figure 8-18).

Models MAV8500

WATER SELECTOR SWITCH

POSITION CIRCUIT

H-C

BK*-RD*

w-w BK*-RD*, BU**-RD**

BU**-OR**

w-c

c-c

* 1/4" Terminal

16009485-01

BK*-RD*, BU'^*-RD** BU**-RD**

** 3/16" Terminal

Should a switch malfunction, current is di rected through the fuse link causing it to break down. Once the fuse link opens, the formed contact spring arm opens and the power to the machine is permanently disabled. Note, the schematic representation in

Section 8. Electrical Components & Testing 8-19

(Figure 8-19).

Page 90

Figure 8-19

Unfortunately, the resistive carbon fuse link can not be easily detected with a regular ohm meter.

An easier and more accurate method would

be to measure the resistance between LINE and MACHINE terminals (Figure 8-20).

A properly functioning machine should show a CLOSED circuit between LINE and MACHINE,

regardless of lid position.

Terminals

LI (Line to

SW (Machine

LI (Line to M

(Motor

Figure 8-20

Continuity

Check With

Lid Open

Continuity

Continuity Check with Lid Closed

Continuity

16009485-01

Section 8. Electrical Components & Testing

8-20

Page 91

SECTION 9. TROUBLESHOOTING

DIAGNOSTIC FLOW CHARTS

SERVICE PROBLEM Will Not Fill 9-2 Slow Fill 9-2 Water Tern perature Incorrect Over Fills 9-2 Water Leaks

Fills Will Not Agitate 9-3 Excessive Noise/Vibration Spin During Agitation 9-4

Will Not Spin 9-4

Spin Speed Too Slow 9-4 Clothes Wet After Spin 9-4

Tub Full Of Water

No Timer Advance 9-5

PAGE NUMBER

9-2

9-3

9-5

No Rinse Fill 9-5

16009485-01

Section 9. Troubleshooting

9-1

Page 92

Will Not Fill/Slow Fill

(MAV5000, MAV5057)

Check that water faucets are on.

Water Temperature Incorrect

• With the tub empty, place machine in nor mal wash and pull timer knob out.

Check for blockage in screens.

Check for kinked inlet hoses.

Is washer plugged into power supply?

Is 120VAC present at outlet (Page 1-2)1

Check for blown fuse or tripped breaker.

Pull out timer knob.

Push water temperature selector button

(Page 8-17).

Check lid switch assembly (Page 8-19).

Check Pressure Switch for continuity be

tween terminals (Page 8-16 or for loose/

damaged wires.

• Deselect АТС (if available).

• Fully press Hot/Cold Temp setting. Hot water should flow.

• Fully press Warm/Cold setting. Warm water should flow.

• Fully press Cold/Cold setting. Cold water

should flow.

• If temperatures are not correct, check for

reversed inlet hoses at faucets or at water

valve. Or, check for inappropriate wiring

of water valve harness, wires reversed in

timer connector (Page 8-3), wires reversed

at АТС (Page 8-4), bad thermistor in water

valve (Page 8-10), and inappropriate wir

ing of temperature switch (Page 8-19).

Check timer contacts (Page 8-3).

Check for continuity on water valve solenoid(s) (Page 8-10).

Will Not Fill/Slow Fill

{MAV6000, MAV6057, MAV7000, MAV7057, MAV8000 & MAV8057)

• Check all symptoms listed under Model MAV5000.

• Check wires at АТС board for good termi

nal connections (Page 8-4).

• Check for damaged components on АТС board.

Overfills

• Check water pressure to machine. If less than 4 PSl, it is normal for water to flow through valve. Increase water pressure.

• If water pressure is adequate, disconnect

power cord from outlet. Does water con

tinue to flow? If yes, replace water valve

(Page 5-1).

• Check water level pressure switch for

proper operation (Page 8-16).

• Examine air dome hose for leaks

(Page 4-1 and 5-5).

• Check for obstruction blocking air dome hoses (Page 4-5 and 5-5),

16009485-01 Section 9. Electrical Schematic 9-2

Page 93

Water Leaks

• If motor does not run:

• Check top tub gasket (Page 5-3).

• Check water inlet hoses at machine and

iauceX(Page 1-5).

• Check drain hose clamps at pump and drain inlet.

• Check tub to pump hose clamp.

• Check pump for cracks or seal damage

(Page 5-5).

• Check water mixing valve for cracks or hose connection leak.

• Check center seal for leak (Page 7-2).

• Check for water inlet flume damage

(Page 5-2).

Check pressure switch contacts (Page 8-

16).

Check timer contacts (Page 8-3).

Check selector switch (Page 8-17).

- Check motor start switch (Page 8-12).

Check motor winding and thermal over load (Page 8-11 and 8-12).

Excessive Noise - Vibration

Check for proper installation.

Legs level and secure (Page 1-3).

Stabilizer rear legs secure (Page 4-11).

Fills - Will Not Agitate

IF MOTOR RUNS:

• Check for broken belt.

• Check for pivot spring in place.

• Check for motor mount glides in place.

• Check for problem with transmission

(Page 7-12).

• Check drive pulley movement (Page 7-4).

Turning pulley clockwise should oscil

late the agitator and turning counter clockwise will release the brake for spin ning action. If pulley does not turn, replace transmission.

• If pulley and transmission are operating correctly, check for obstruction in pump

(Page 5-5).

Sound and secure flooring (Page 4-11).

Check motor pulley and bearings

(Page 8-15).

Check pump pulley and bearing

(Page 5-5).

Check belt.

Check transmission pulley for correct thrust bearing adjustment (Page 7-6).

Check transmission for spin bearing noise.

Check center tub seal (Page 7-2).

Check agitator for correct installation.

Remove front panel and check that the six suspension springs are attached to the base and outer tub (Page 6-2).

16009485-01

Section 9. Troubleshooting

9-3

Page 94

Spin During Agitation

WILL THE MOTOR RUN? NO

Check for thrust bearing misalignment

(Page 7-6).

Check for defective brake package

(Page 7-7).

Check for misalignment of snubber

(Page 7-8).

Will Not Spin - Spin Speed Too Slow

WILL THE MOTOR RUN? YES-

Check for unbalanced load.

Check for broken or slipping belt.

Does the house drain system accept wa

ter from machine?

• Check power supply to the machine

(Page 1-2).

• Check lid switch assembly (Page 8-19).

• Check selector option switch (Page 8-17).

• Check timer contacts (Page 8-2).

• Check for pump obstruction (Page 5-5).

• Check motor (Page 8-11).

Clothes Wet After Spin

• Review section titled "Spin Speed Too Slow."

• Check for unbalanced load.

Check for blocked drain hose.

Check for binding tub seal (Page 7-3).

Check for partial engagement of brake as

sembly (Page 7-13).

Check for obstruction between tubs

(Page 5-5).

Check for proper adjustment on thrust bearing (Page 7-4).

Check for broken impeller on pump

(Page 5-4).

Complete torque test (Page 7-12).

If machine appears to pass all checks, place 3 1/2 pound unbalance weight in machine and check for 600 RPM. Monitor wattage readings (Page 1-8).

• Check for slipping belt.

• Check reference marks on drive pulley and cams (Page 7-6).

• Check for partial engagement of brake as

sembly (Page 7-13).

• Check pump for obstruction (Page 5-5).

• Check for drain hose restriction.

• Check for drain plumbing restriction.

16009485-01

Section 9. Electrical Schematic 9-4

Page 95

Tub Full Of Water

Check lid switch assembly (Page 8-79).

• Check for drain hose restriction.

• Check for drain plumbing restriction.

• Check pump for obstruction or proper operation (Page 5-5).

• Check pump pulley (Page 5-5).

• Check for proper polarity of motor against

timer sequence chart (Page 8-3).

• Check for loose or slipping belt.

• Check reference marks on drive pulley and

cams (Page 7-6).

No Timer Advance

Check timer harness connector for proper wiring (Page 8-3).

Check water level switch (during agitation)

(Page 8-16).

Check wiring of option selector switches

No Rinse Fill

• Check to see if washer will fill with warm and cold water in WASH cycle.

• If washer will not fill in wash cycle, refer to the "Will Not Fill" section.

• Check timer (Page 8-3) or microprocessor АТС (if so equipped) connections (Page 8-

6).

• Check for proper wash cycle selected.

NOTE: Soak sequence during Delicate Cycle

(Page 8-3).

• Check for proper voltage at timer motor.

• If voltage is good, check timer motor for correct ohm reading (Page 1-8).

• If no voltage, check voltage at outlet

(Page 1-2).

• The analog АТС only regulates the WASH fill, it affects the Warm - Warm and does not affect the RINSE water fill.

• The microprocessor АТС regulates all wa ter flow in the machine.

• Check water temperature selector switch for continuity in rinse cycle (Page 8-18).

16009485-01

Section 9. Troubleshooting

9-5

Page 96

16009485-01

Section 9. Electrical Schematic 9-6

Page 97

SECTION 10. ELECTRICAL SCHEMATICS

An electrical schematic is folded and placed inside the control console of each washer. It can be accessed by removing the control console (Page 4-1).

The schematic diagram provides vital information needed to check a circuit and pinpoint a malfunctioning electrical component (Chapter 9).

The schematic diagram contains the following:

* Connection Diagram

* Cycle Sequence Chart

• Motor Harness Connector Identification

• АТС Harness Connector Identification (If applicable to the model).

A thorough understanding of the information available on the schematic diagram is a pre

requisite for quick and accurate troubleshooting.

The following electrical schematics are illustrated for the following models:

MODEL NUMBER

MAV4057 MAV4500 MAV5000 MAV5057 MAV6000 MAV6057

PAGE NUMBER

10-2 10-2 10-3 10-4 10-5

10-6 MAV7000 10-7 MAV7057 MAV8000

10-8

10-9

16009485-01

MAV8057

MAV8500

10-10 10-11

Section 10. Electrical Schematics 10-1

Page 98

SCHEMATIC MAV4057 & 4500

I wH II ir5k

L IH3[M1[S

r^isir

TIMER LINE SWITCH

• INTERNAL TIMER BUSS

■WIRE

16009485-01

Section 10. Electrical Schematics 10-2

Page 99

SCHEMATIC MAV5000

^r-pix=Dx::j-

i?j 1_

nyiiSWI I BK11 rdI

mi II

LwhH

niH

whII^

BK IIrS

TIMER INFORMATION

CIRCUIT

21TDB REV6RS1N0 SPIN

M VL

nri

BU 1

nan Liu

'^1

1ml ri51

21 TO 321 REVERSrNO W3ITATE

TIMER LINE SWITCH

TIME CHART - 180 SECONDS PER INCREMENT

llHilllHIHHIIimillllllliimiiiiimiiiii. '»:• II III»:* II iiìk" II III

■ INTERNAL TIMER BUSS

•WIRE

GND

CABINET

FRAME

10A FUSE

(IF SO EQUIPPED)

LID SWITCH

(open position) ]

7nJ

DRIVE

MOTOR

\ • Wi / EXPORT A

TIMER

;TIMER-| ^ t

'MOTOR

n T

_____

™ «

______

SUPER

WASH

(off)

(22._BU j32

—L

FUL L

-n—-

WATER

TEMP

SWITCH

WATER

VALVE

15 BR

EMPTY

SWITCH

SL247T1F

Section 10. Electrical Schematics 10-3

62602270-1198

-©■

ItL

WATER LEVEL

16009485-01

Page 100

SCHEMATIC MAV5057

T C B

RD{

1 ^

[TT

LbQJ

ImJ

□

BUl

u u LbqJ

"SI

LBUJ

riTI

rdI

LSiJ

pE L3J

62603690-1198

16009485-01

mTER LEVEL

SWITCH

Section 10. Electrical Schematics

SL248T1F

10-4