Rebuild of Maytag Transmission and Transplant into LAT 9800 AAW.

[beekeyknee]

Splined washer goes on top of drive shaft first.

 

[beekeyknee]

Lug washer goes on top of splined washer second.

 

[beekeyknee]

Nylon pinion goes on next.

 

[beekeyknee]

Nickel worked well to tighten pinion screw.

 

[beekeyknee]

Tighten screw and put groove pin in hole closest to top of flat to keep screw from moving.

 

[beekeyknee]

Push pin down flush with top of screw. I noticed pinion is translucent.

 

[beekeyknee]

Pour a small amount of gear oil in a bowl. Apply it to the drive shaft.

 

[beekeyknee]

Coat helix well too.

 

[beekeyknee]

Start drive shaft carefully down drive tube.

 

[beekeyknee]

Maytag originally made a guide to place over the end of the drive shaft that had a spiral that threaded up the helix to make the end of the shaft completely smooth so it would pass by the O-ring easily. If you're careful it can be done without it. Start the shaft down the tube while turning slowly clockwise. When the helix reaches the O-ring it should start to thread its self into the helix. Keep turning the shaft and you should see it slowly pulling its self down pasting the O-ring. When it gets to the top of the helix it will stop moving downward. At this point I grabbed the pinion while slowly turning clockwise and applied a steadily increasing downward pressure. If all go’s well the O-ring will give way and compress itself into the groove and create a tight seal between the drive tube and shaft. Then the shaft should push straight down and the lugs on the washer should engage with the slots in the bottom half of the transmission case.

 

[beekeyknee]

It should look like this.

 

[beekeyknee]

Replace intermediate gear.

 

[beekeyknee]

Replace Pitman gear and segment gear. I placed segment gear on its stud with the center of the segment in line with the drive shaft center.

 

[beekeyknee]

You will probably have to reposition the pitman gear to keep the segment gear in line with the center of the drive shaft before replacing Pitman arm.

 

[beekeyknee]

Replace the washer that holds down the Pitman gear and arm. Then replace the snap rings on the intermediate gear and the Pitman assembly.

 

[beekeyknee]

Notice the galling on the agitator drive shaft pinion.

 

[beekeyknee]

I turned the pinion around 180 degrees so the non-worn side would face the segment gear. This is why I was spending the time to center the segment gear. Now the non-worn side will mesh with the segment.

 

[beekeyknee]

Place a new gasket over the alignment studs on the transmission cover.

 

[beekeyknee]

Pour new gear oil in case.

 

[beekeyknee]

Align the studs on the transmission cover with the holes in the gear housing while keeping the gasket in place and when the two halves start together turn the agitator shaft spline a little bit back and forth to make it engage the segment gear. I found this to be one of the hardest parts of re-assembling the transmission. Everything has to be in perfect alignment for the two halves to go together. You'll notice I ended up using an old chimney tile to support the transmission for reassembly and let the drive tube drop through the umbrella hole in the table. You can't put any pressure on the bottom of the drive shaft as the lugs on the washer have to remain engaged in the casting’s slots of the gear housing. The end of the drive shaft also has to remain protected so the drive lug will mate with the shaft. In my excitement to get this back together I forgot to take a picture of the gear housing after it was filled with oil. The fill is to the top edge of the gear housing.[this post was last edited: 2/8/2012-08:47]