Maytag Atlantis User Manual

MAYTJiC

Maytag

Washer

Service Manual

16010358

(16009485)

Issued 5/99

Revised 6/01

‘'1

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.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;

(C)Third, connect electrical supply;

(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.

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:

MAV4057 MAV7200

MAV4500 MAV7000

MAV5000 MAV7057

MAV5057 MAV7600

MAV6000 MAV7700

MAV6057 MAV8000

MAV6200 MAV8057

MAV6257 MAV8500

MAV6300 MAV8600

MAV9600

M AV 5000

w w

Brand
M=Maytag		Model No.	Color
	Product	Production	Q=Bisque
	AV=Automatic		W=White
		Code
	Vertical Washer
		Voltage
		W=120VAC/60 Hz-U.S.
16010280			Introduction
(16009485-02)	©2000 Maytag Appliances Sales Company

* V

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: [phone]

FAX: [phone]

16010280	Introduction
(16009485-02)	©2000 Maytag Appliances Sales Company

INTRODUCTION.................................................................................................	Mi
CONTENTS......................................................................................................	iii-vl
SECTION 1. GENERAL INFORMATION..........................................................	1-1
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

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......................................			3-1
SECTION 4. CABINET ASSEMBLY COMPONENTS.....................................			4-1
CONTROL PANEL ASSEMBLY ..............................................................................................			4-1
VERTICAL SWITCHES.............................................................................................................			4-2
TIMER REMOVAL....................................................................................................................			4-2
AUTOMATIC TEMPERATURE CONTROL BOARD................................................................			4-3
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
SECTION 5. WATER - RELATED COMPONENTS.........................................			5-1
WATER MIXING VALVE..........................................................................................................			5-1
WATER INLET FLUME.............................................................................................................			5-2
AIR BELL..................................................................................................................................			5-2
HOSES.....................................................................................................................................			5-2
16010280		Contents	III
(16009485-02)	©2000 Maytag Appliances Sales Company

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......................................................................	7-12
TORQUE TESTING...............................................................................................................	7-12
TRANSMISSION REMOVAL.................................................................................................	7-14

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.................................................		8-6
MICROPROCESSOR TEMPERATURE CONTROL BOARD DIAGNOSTICS.......................		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
16010280	Contents	IV

(16009485-02)

©2000 Maytag Appliances Sales Company

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

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16010280	Contents
(16009485-02)	©2000 Maytag Appliances Sales Company

NOTES

16010280

Contents

VI

(16009485-02)	©2000 Maytag Appliances Sales Company

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.

•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.

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.

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.

W

Water heater should be set to deliver a minimum of 120° (49°C) hot water to the washer.

16009485-01	Section 1. General Information	1-1
	©1999 Maytag Appliances Sales Company

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 threeprong 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.

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.

16009485-01

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.

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

©1999 Maytag Appliances Sales Company

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.

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.

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.

4.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.

5.While holding foot still, turn the adjust­ ing locknut clockwise until the nut is tight­ ened firmly against base (Figure 1-3).

6. 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).

16009485-01	Section 1. General Information	1-3
	©1999 Maytag Appliances Sales Company

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.)

LAUNDRY

TUB

STANDPIPE

SERVICE

UNIT

SL297TIF

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

	Figure 1-7
16009485-01	Section 1. General Information 1-4
	©1999 Maytag Appliances Sales Company

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).

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.

SIDE VIEW OF WASHER

Tub

Water Level

Figure 1-9

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.

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.

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

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:

16009485-01	Section 1. General Information	1-5
	©1999 Maytag Appliances Sales Company

•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

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©1999 Maytag Appliances Sales Company

SPECIFICATIONS - WASHER

	CAPACITY	3.2 Cubic Feet
	ELECTRICAL	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
	MOTOR	1/2 H.P., reversible, 2 Speed, 115 volt, 60 cycle A.C.
	POWER USAGE	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.]
	TRANSMISSION	Rack and pinion type, incorporating reduction gears
	WATER USAGE	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)
	HOSE LENGTHS	Four foot inlet hoses with inlet washers attached to water valve.
		Drain hose attached to pump and will accommodate 36" high drain stand
		pipe.
	DIMENSIONS	Cabinet Dimensions: 27" (68.58cm)W x 27 (68.58cm)D x 43 3/8" (110.2cm)H
	WEIGHT (Approx.)	Uncartoned 160 lb. (72.6 kg.) Approx. Crated 185 lb. (84 kg.) Approx.
	FINISH	Top Cover - Porcelain
		Lid - Porcelain
		Outer Tub - constructed entirely of polypropylene
Vi#’		Spin Basket - polypropylene
		Cabinet - baked enamel
		Base and other finished parts - baked primer
16009485-01		Section 1. General Information	1-7
		©1999 Maytag Appliances Sales Company

Setting	Gallons	*Depth	*Basket
		Inches	Perforations
Mini	10.5	6"	3 1/2“
Medium	14.1	8 1/2“	5“
High	19.5	11"	7“
Super	23.3	13 1/2“	9 1/4"

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

AGITATOR SPEED

Regular Cycle	88 Oscillations per minute	155 Degree Arc
Slow (Delicate) Cycle	57 Oscillations per minute	155 Degree Arc

SPIN SPEED

Regular Cycle	620 R.RM.
Slow (Fine Wash) Cycle	410 R.RM.

TABLE 1-1. AMPERAGE CHART

	WATER
CYCLE	LEVEL	♦AMPS
Agitate-Regular	Full Tub	10.4
Agitate-Slow	Full Tub	7.6
Agitate-Regular	DryTub	7.5
Spin-Regular	DryTub	10.2
Spin-Slow	DryTub	7.6
Pump Out-Regular	Full Tub	10.8
Pump Out-Slow	Full Tub	8.0

TABLE 1-2. RESISTANCE CHART

	♦RESISTANCE
COMPONENTS	(OHMS)
Timer Motor	2360
Mixing Valve	500-1000
Cold Solenoid	853
/Vof Solenoid	867
Drive Motor
High Speed	1.3
Low Speed	2.3
Start	3.1

* These values can vary slightly.

TABLE 1-3. WATTAGE CHART

CYCLE	♦WATTAGE
	RANGE
Agitate-Regular
Full Tub	610-640/670 (MAX.)
Agitate-Slow
Full Tub	370-400/420 (MAX.)
Agitate-Regular
DryTub	460^70/480 (MAX.)
Agitate-Slow
DryTub	350-360/370 (MAX.)
Pump Out-Regular	760
Pump Out-Slow	510
Spin-Regular
Full Tub	460
Spin-Slow
Full Tub	340

* These will vary with washer load and line voltage.

16009485-01

Section 1. General Information

1-8

©1999 Maytag Appliances Sales Company

CYCLE CHARTS

COLORS

			Heavy	Normal	Light
			Option	Option	Option
			Selected	Selected	Selected
Function		Speed	(Min.)	(Min.)	(Min.)
Agitate		Fast	9	3	0
Agitate		Slow	9	9	9
Spin		Fast	6	6	6
Agitate		Slow	6	6	6
Spin w/Spray		Fast	9	9	9
SUPERWASH COLOF		IS
			Heavy	Normal	Light
			Option	Option	Option
Function			Selected	Selected	Selected
		Speed	(Min.)	(Min.)	(Min.)
Agitate		Fast	18	12	9
Agitate		Slow	0	0	0
Spin		Fast	6	6	6
Agitate		Slow	6	6	6
Spin w/Spray		Fast	9	9	9
WHITES
			Heavy	Normal	Light
			Option	Option	Option
Function			Selected	Selected	Selected
		Speed	(Min.)	(Min.)	(Min.)
Agitate		Fast	12	6	0
Agitate		Slow	9	9	9
Spin w/Spray		Fast	6	6	6
Agitate		Fast	6	6	6
Spin		Fast	9	9	9

16009485-01	Section 1. General Information	1-9
	©1999 Maytag Appliances Sales Company

SUPERWASH WHITES

			Heavy	Normal	Light
			Option	Option	Option
			Selected	Selected	Selected
Function		Speed	(Min.)	(Min.)	(Min.)
Agitate		Fast	21	15	9
Agitate		Slow	0	0	0
Spin w/Spray		Fast	6	6	6
Agitate		Fast	6	6	6
Spin		Fast	9	9	9
DELICATES
			Heavy	Normal	Light
			Option	Option	Option
			Selected	Selected	Selected
Function		Speed	(Min.)	(Min.)	(Min.)
Agitate		Slow	0	3	0
Soak		Not	0	3	0
		Applicable
Agitate		Slow	0	3	3
Soak		Not	0	3	3
		Applicable
Agitate		Slow	0	3	3
Spin w/Spray		Slow	0	6	6
Agitate		Slow	0	3	3
Spin		Slow	0	6	6

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Section 1. General Information

1-10

©1999 Maytag Appliances Sales Company

SUPERWASH DELICATES

		Heavy	Normal	Light
		Option	Option	Option
	Speed	Selected	Selected	Selected
Function		(Min.)	(Min.)	(Min.)
Agitate	Fast	0	3	0
	Not
Soak	Applicable	0	3	0
Agitate	Slow	0	3	3
	Not
Soak	Applicable	0	3	3
Agitate	Slow	0	3	3
Spin w/Spray	Slow	0	6	6
Agitate	Slow	0	3	3
Spin	Slow	0	6	6

16009485-01	Section 1. General Information	1-11
	©1999 Maytag Appliances Sales Company

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

Spring Tool, Part Number 22002922

Spanner Wrench-Basket Hub, Part Number 35-2968

Seal Removal Tool, Part Number 2000021

16009485-01	Section 1. General Information 1-12
	©1999 Maytag Appliances Sales Company

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.

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.

16009485-01	Section 2. Operation	2-1
	©1999 Maytag Appliances Sales Company

Lower Bearing

And Housing —

Assembly

Oil Seal ■

Suspension

Housing

Brake Spring

Retainer

Brake Rotor

And Lining

Assembly

Transmission

' Housing

	Assembly
	Retaining		I
	Ring	Spacer
	Drive Tube		Washer (thin)
		Thrust Bearing	~ Upper Race
	Splines
			)>^Washer (thick)
		Washer (Curved)	Lower Race
		Outer Edge	Washer (thin)
	Drive Shaft	Turned Up
	Splines		Thrust

I

I

I Drive Pulley

I Assembly

Lower Cam ■
	-Thrust
Retaining	Washer
Ring
	■Dust Cap

Brake

Stator

Figure 2-2

16009485-01

Section 2. Operation

2-2

©1999 Maytag Appliances Sales Company

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

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.

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: 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 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 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.

16009485-01	Section 2. Operation	2-3
	©1999 Maytag Appliances Sales Company

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
	©1999 Maytag Appliances Sales Company

Rack Gear

Carrier

Transmission

Cover

Agitator

"shaft

r

Output

^ Pinion

Crank

Gear

Transmission

Housing

Input Pinion

—Wings

Bearing

Housing

Lower

Seal

Figure 2-3

16009485-01	Section 2. Operation 2-5
	©1999 Maytag Appliances Sales Company

16009485-01

Section 2. Operation

2-6

©1999 Maytag Appliances Sales Company

SECTION 3. EXPLODED VIEW OF COMPONENTS

16009485-01	Section 3. Exploded View Of Components 3-1
	©1999 Maytag Appliances Sales Company

:y

SL315TIF

16009485-01	Section 3. Exploded View Of Components 3-2
	©1999 Maytag Appliances Sales Company

SECTION 4. CABINET ASSEMBLY COMPONENTS

A WARNING

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

5. Push the bottom of the console toward the back panel to disengage the six locking feet from the top cover (Figure 4-3).

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).

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).

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.

16009485-01	Section 4. Cabinet Assembly Components 4-1
	©1999 Maytag Appliances Sales Company

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.

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).

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.

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).

16009485-01	Section 4. Cabinet Assembly Components 4_2
	©1999 Maytag Appliances Sales Company