Maytag LEGACY, LEGACY II, DIMENSION, DIRT FINDER Manual

Legacy - Hard Bag Overview

DImension Overview

Dirt Finder Overview

General

These uprights are lightweight upright vacuums that feature high performance computer design motors, double edge cleaning, quick release cord wraps and top conversion cleaning tools.

All models have automatic height adjustment in that the nozzle is free to float up and down on the carpet. These models additionally have front wheel height control to limit the minimum nozzle height which allows the user to select the proper setting for optimum operation on various types of carpets.

The Legacy and Legacy II models use Type "A" top-fill disposable bags.

The Dimension/Dirt Finder uses Type "Z" top-fill disposable bags.

Microfiltration bags are available for both models.

Operation

These cleaners operate on a Dirty Air System principle, i.e., dirty air passes through the motor area (fan) before reaching the bag.

As illustrated, air and dirt are sucked through the molded agitator housing and directed into the motor area. The fan then propels the air and dirt up the handle passage and into the throw-away bag.

The Legacy units are controlled by an on/off switch located on the side of the unit. (Fig. A)

The Legacy II, Dimension and Dirt Finder units are controlled by an on/off switch located in the front of the upper handle.(Fig. B)

The carpet height adjustment lever has four settings for carpet cleaning and one for the top tool conversion.

It is important that the unit be in the proper setting (carpet - for floor cleaning, and cleaning tools when using the hose and tools). This will ensure optimum performance.

The cleaning tool hose attaches to the unit through the tool door located on the top of the hood. The air is directed to the hose by adjusting the nozzle control knob to the cleaning tool position.

The valve gate operates in conjunction with the height adjustment lever. When the lever is in any one of the four carpet settings the valve gate is open. The cam is not contacting the valve gate.

As the lever is moved to the cleaning tools position the cam locks on to the gate and slides it to shut off suction to the agitator cavity.

Note: These illustrations are shown without the bottom plate or wheel assembly in place.

Dirt Finder feature:
The embedded Dirt Finder system is powered by a regular 9V alkaline battery. The battery is located in a holder inside the bag compartment.

The circuitry is energized when the cleaner on/off switch is turned to the on position. A separate switch mounted in the bag housing is actuated by a raised rib on the upper switch rod.

A microphone, located near dirt duct, senses debris that strikes the tube and signals the circuit board which controls the lights.

The green light signifies clean and the red dirty.

It is important to note that when you turn on the unit the red light will come on. After a few seconds the red light will go off and the green light will come on. This function lets you know the Dirt Finder feature is ready. If this lighting pattern does not occur check the troubleshooting portion of this instruction.

Disassembly

Models with a bag door skip to section B.

1. Outer bag (Legacy and Legacy II Models)
   

The retention/guide ribs on the jacket support lower must mate with the retention/guide ribs on the lower handle. (Fig. 5A).

Note: Units without bag door skip to Section D.

2. Bag housing (Legacy II and Dimension) Bag housing/Dirt Finder circuitry (Dirt Finder)

2. Remove throw-away bag.
3. Remove bag housing.
   1. Release two tabs on inside of bag housing located above dirt tube (Fig. 5C)
      

Note: On Dimension/Dirt Finder models, the tool door and holder must be removed to access the tabs.

To remove tool door/tool holder.

1. Unsnap hinges at base of door (where applicable to remove (Fig. 5D).
   
2. Remove tool holder mounting screw (located in screw cavity under the dusting brush).
3. Pry outward on both sides of the tool holder to release tabs and pivot holder out of position (Fig. 5E).
   
   2. Lift bag housing out of bag housing bracket located on lower handle. (Fig. 5F)
      

1. Disconnect leads and snap switch out of bag housing.

1. Remove housing screws.
2. Snap circuit board out of housing and disconnect leads.

Note: The discharge of static electricity to a circuit board can damage the component. When removing the circuit board from the special anti-static bag, the following precautions should be taken.

1. Avoid being statically charged when handling board. Serviceman should ground himself if possible.
2. Circuit board should be handled by outside edge or metal heat sink only.
3. DON'T touch the metal traces (circuits) on bottom of circuit board.

To remove:

1. Grasp microphone leads near the base of the microphone and slowly pull the mic out of the seat.
2. Disconnect leads at board (Fig 5I)
   

Note: It is important upon reassembly of the microphone to firmly push the microphone into the seat in bag housing. Also, replace the electrical tape and position as illustrated in Fig. 5H. This will insure optimum performance of the microphone.

7. Bag housing bracket
   1. Remove handle bolt and nut.
   2. Remove bracket by sliding it off of the tapered rails located on the lower handle. (Fig. 5J).
      

1. Remove air freshener dispenser.
2. Locate and release the two retention tabs for the cap on the inside of the jacket. (Fig. 6).
   
3. Remove cap.

1. Release 6 retention tabs on inside of jacket support upper and separate outer bag collar from jacket support. (Fig. 7).
   

1. Release 6 retention tabs on inside of jacket support lower and separate outer bag collar from jacket support. (Fig. 8)
   

1. Remove tools.
2. Remove hose.
   1. Rotate hose in opposite direction of indicator arrow and remove hose. (Fig. 9)
      

For proper alignment of the tool rack during re-assembly, hook Notch A of rack on rib A of the handle. (Fig. 11).

12. Attachment cord - handle upper/lower - switch control rod
    With jacket or bag housing, tool rack and handle nut and bolt removed, the handle can be disassembled by grasping and pulling upward off of motor assembly.

Be careful not to set handle assembly down on exposed switch rod at handle base. This could damage rod.

1. Remove attachment cord.
   1. Slide cord protector and connector out of handle upon re-assembly, be sure to align the arrow on the cord protector and press groove in cord protector into slot in handle.
      
      Press the cord into place on the three notches indicated below.
      
      Position the connector in the handle with the "UP" side visible.
      
2. Separate handle.
   1. Separate by grasping both halves and pulling apart. (Fig. 12)
      
3. Remove switch control rod from the lower handle.
   The lower rib of the switch control rod is tapered as shown in Fig. 13. This protrusion must be raised to clear the support rib in the lower handle (Fig. 13) in order to facilitate removal.
   

NOTE: Early model Legacy II lower handle assembly includes an integral muffler system. This system consists of a muffler louver, muffler foam and a muffler cover. All of these items are permanently attached to the lower handle so if a problem related to the system occurs the complete lower handle assembly must be replaced. This handle with muffler is no longer available in service.

4. Upper Handle Assembly -
   The upper handle's are stocked as assemblies only.
   The serviceable components are the bag strap and spring on models without the hard bags.

To service bag strap.

1. Remove the handle grip from the upper handle by releasing the handle cap retention tab. (Fig. 14)
   
   The bag strap spring is retained to the upper handle and can now be removed in conjunction with the bag strap (Fig. 15)
   

1. Remove height adjustment indicator knob (friction fit). (Fig. 16)
   
2. Turn cleaner over and remove the 4 hood retention tabs. (Fig. 17).
   
3. Remove hood.

Note: The furniture guard is molded onto the hood and is not replaceable.

Air intake door assembly.
Remove door assembly by unsnapping it from the locator bosses on the inside of the hood.

All the components of the door assembly listed are replaceable.

Headlight lens/panel

The headlight lens and/or panels are removable by releasing the retention tabs as illustrated. (Fig. 18)

14. Headlight

15. Bottom plate

1. Remove bottom plate.
2. Remove hood.
3. Remove belt from motor shaft.
4. Slide agitator and belt out of housing.
   

Note: When re-assembling belt, follow the diagram on the main body for proper orientation.

For instructions concerning the agitator see agitator section.

17. Front wheel support/wheels/lever

On Legacy units, you will encounter one of the two wheel arrangements illustrated below. (Fig. 21,22)

Early Design
Models produced prior to 4/8/91 lever positioned on outer edge of the support.

Latest Design
Models produced after 4/8/91 lever positioned in the center of the support.

The latest lever will be available in service for use on both style supports and is a drop-in replacement..

The early design wheel supports are no longer available in service. Updating the unit from the early style support to the latest will require replacement of the main body.

Wheels
Remove wheels from support by prying wheel retainer from shaft and sliding shaft out of support.

Note: Replace the wheel retainers once they are removed from the shaft.

Lever Remove lever by unsnapping it out of the support.

18. Valve gate

Note: On the late model units, the main body has been revised so the valve gate "snaps" into position and is retained in the main body.

1. Remove bottom plate.
2. Remove valve gate.
3. Remove front wheel support.
4. Remove hood.
5. Release the 2 nozzle height adjustment cam retention tabs (Fig. 24)
6. Separate nozzle height adjustment cam and cam actuator.
   
   The spring on the cam is replaceable.

1. Release the rear wheel shaft from the main body retention slots. (Fig. 25)
   

Note: The main body must be flexed on one side or the other of the rear wheels while pulling upward on the rear wheel shaft and then on the other side of the rear wheel to facilitate removal.

1. Remove hood.
2. Lower handle to its lowest position.
3. Release the handle lever shaft protrusion fromthe main body retention slots. (Fig. 26).
   

1. Remove handle.
2. Remove hood.
3. Release belt from the motor shaft.
4. Remover motor retainer right half and left half.
   
5. Lift motor off the main body. Check for the seal at the inlet to the fan chamber. This seal is friction fit and slides out of the housing.

Motor (See the exploded view)

Motor service
Serviceable components are listed on the above schematic. Failure of any component not listed requires replacement of the entire motor.

Fan

1. Remove light bulb by pulling straight out of the socket.
2. Remove four screws which retain the fan chamber to the motor end cap assembly.
3. Remove motor end cap assembly by sliding it off the fan chamber and motor housing assembly.
4. Remove the molded duct seal by sliding it off the housings.
   
5. Lift off fan chamber and remove fan (LH thread)

At this point, you have broken a latex paint seal between the motor housing and fan chamber cover. It is important that aluminum tape be installed in its place as shown below.

Motor brush holder assembly
(Replaced as an assembly which includes motor brush and holder)

1. Remove four screws which retain fan chamber to motor end cap assembly.
2. Slide fan chamber and motor housing assembly out of motor end cap assembly.
3. Grasp motor brush holder assemblies with pliers and slide then outward to release the terminal connection.

Upon reassembly of new motor brush holder assemblies, position holders and slide them into place insuring the field terminal connection and continue to insert until they stop.

Do not grasp outside of brush holder with pliers as it could damage the holder and cause the carbon brush to stick.

On/off switch

1. Remove fan.
2. Remove brush holders.
3. Remove armature.
4. Remove field assembly
5. Remove switch/attachment cord terminal blade.
   
   
6. Remove field winding lead from switch terminal by uncrimping connection.
   
7. Remove switch by releasing switch pressure tabs and snapping switch out of holder.
   

Note: When installing a new switch, the field winding lead must be securely crimped to the proper switch terminal.

The following is a guide to aid in determining the origin of a problem for which these models could conceivably be brought in for service.

PROBLEM	POSSIBLE CAUSE	POSSIBLE SOLUTION
Motor won't run	Not firmly plugged in. No voltage in customer's wall plug. 2. Plug into known good voltage source. On/off switch bad. Open in attachment cord. Open circuit in motor. Fan jammed by foreign object. Broken switch control rod.	Check power cord for proper connections. Replace switch Replace cord. Check motor wiring (armature & field). Remove obstruction. Replace switch control rod.
Motor runs cleaner won't pickup.	Agitator belt broken or worn. Bag full. Worn agitator brushes. Warped or damaged bottom plate. Blocked air flow system. Nozzle control knob in "cleaning tools" position.	Replace belt. Replace throw-away bag. Replace agitator. Replace bottom plate. Clear blockage. Adjust to one of the four carpet cleaning positions.
Motor intermittent	Loose wire connection. Defective on/off switch. Worn carbon brushes. Motor brush hanging in holder.	Check all connections. Check and change switch. Replace motor brush holder assembly. Replace motor brush holder assembly.
Motor runs hot	Refer to 2 and 5 under Item B Worn carbon brushes. Shorted or overloaded field coil. Shorted or overloaded armature. Loose wire connection. Motor air vent clogged. Tight motor bearings.	The items referred can cause the motor to run hot because all restrict the air supply. Field and armature will be generally discolored. Replace motor. Replace motor brush holder assembly. Replace motor. Replace motor. Connections should be tight to prevent high resistance. Tighten connections or replace as necessary. Clear air restriction. Check and replace motor if necessary.
Cleaner noisy	Interference between bottom plate and agitator. Broken blade(s) on fan. Agitator bearings dry or worn. Warped agitator.	Check to see if bottom plate is damaged or mispositioned. Replace fan. Grease or replace bearings. Replace agitator.
No pickup using tools	Cleaner not set to "cleaning tools" position. Obstruction in hose. Valve gate not functioning.	Check setting. Clear obstruction. Remove bottom plate and check operation

This section addresses problems associated with the Dirt Finder feature in the Dirt Finder unit.

PROBLEM	POSSIBLE CAUSE	POSSIBLE SOLUTION
Circuit board won't light	9V battery not installed. Low battery. Battery disconnected. Switch failed. Switch out of position. Wires not connected at switch or circuit board. Circuit board failed Bag housing not firmly locked into place.	Install battery and check operation. Change battery. Connect and check operation. Replace switch. Check switch mounting bracket to insure its in position and switch is snapped into bracket. Check and reconnect. Replace board (check items 1 - 6 first) Check that housing is snapped into place. This will insure raised projection on switch rod contacts switch.
	Note: Normal lighting pattern is discussed in the basic operation section of this instruction
Light does not change from green to red during normal operation	Carpet clean.	The red light may seldom come on during cleaning. This means your cleaner is picking up primarily fine surface dust and lint which the system may not detect or that the carpet is clean. Switch unit to Hi - sensitivity and recheck.
	Note: To check lighting pattern, unplug unit, turn cleaner switch to on (green light will illuminate). Tap inside the opening of the dirt duct with a screwdriver. The light should change from green to red. If the light does not change, check the following.
	Microphone out of position. Dirt duct opening "caked with dirt" Microphone leads disconnected from circuit board. Microphone failed.	Check to insure the mic is firmly pressed into the seat. Clean opening and recheck. Check and reconnect. Replace microphone (Check 1 - 3 first).