Step - by - Step How to

Skid Steer T-20 Transmission Tear Down. Page 1

Click HERE to order T-20 parts off our 6x6parts.com website

The T-20 Transmission first built by Borg-Warner, and ATV-O-MATIC, now built by Skid Steer Corp. has been used in thousands of Amphibious All Terrain Vehicles including Max II, Max IV, Attex, Hustler , Starcraft, Swamp Fox, Camel and many other manufactures. It as a popular choice of custom machine builders, since it gives forward, reverse, brakes, steering all within one unit.

When it's time for service, This Step-by-Step photo guide should answer most concerns.

We offer all replacement parts at Richard's Relices Click HERE for the parts pages.

Click HERE for a nice readable copy of the factory service manual in printable PDF form.

This page is designed to be printable by ROUTE6x6 and RICHARD'S RELICS


This is another addition to our new how to series, we will ba adding more every week, so check back often. You may also e-mail suggestions for future how - to's to. richard@route6x6.com

   
T-20 Tear Down Step-by-Step guide Page 1
   

Always disconnect negetive battey cable before servicing your machine.




Remove transmission from your machine, remove clutch, and try to drain all the oil you can, this controls the mess in later steps.

Flushing the trans at this point, will also keep the mess down.

If you are having trouble removing clutch, click HERE

Put T-20 on a clean work bench, you will need room to store all the parts. We will talk about inspection of the parts in the next HOW TO section, click HERE to see it.


Click on PHOTOS to see larger view

 


 

 


Remove shifters be removing the "hold down plate" by removing the two bolts, one shown by the red pointer.

Some older T-20's have the shifters retained with internal snap rings.


If you need more details on removing shifters click HERE

 

Click on PHOTOS to see larger view





Pull shifter up and out of the T-20 repeat removal for other side shifter.

 

 

 

Click on PHOTOS to see larger view

 

 

 

 

 

 

 

Shifter out.





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Remove 4 hair pin clips from brake lever channels as shown.



Click on PHOTOS to see larger view

 

 

 

 

 

 

 

Remove all 4 plunger adjustment bolts, do not worry about marking bolt ajustment, we will tell you how to adjust the bands later.





Click on PHOTOS to see larger view

 

 

 

 

 

 

 

Repeat above steps to remove all 4 bolts and lift channels away.

 


Click on PHOTOS to see larger view

 

 

 

 

 

 

Remove the 9 bolts surrounding the center of the case.


Hint: Put a tray under the T-20 to catch the oil.

Click on PHOTOS to see larger view

 



 

 

 

 

 

 

Pull on both sides of the trans to seperate the case halfs, sometimes you will need to wedge a screwdriver in between caes and center plate to free stuck gaskets.




Hint: The right side will come off the left side, seperated by a center plate, which at this point will stay attached to the left side.

The left side is the half with the clutch shaft.



 

 

 

 

 

 

 Cases coming apart.


NOTE: Drum assembly may stay on the case half as shown, or they may stay in the case.


Click on PHOTOS to see larger view   



 

 

 

 

 

 

 Remove band loop off pin, shown by red pointer.


 

 

 

 

 

 

 

 Remove pin and band seperation sleeve as shown by red pointer.



Click on PHOTOS to see larger view   


 

 

 

 

 

 

 

Pull bands and plungers out of the case.



Note; Pull plunger towards inside of case. If you are having touble, see next step.

 

 

 

 

 

 

 

 

If plunger will not pull out, you may need to lightly drive it out with a drift, as shown by red pointer.



Note: Our clutch removal tool, works well, see it here

 

Click on PHOTOS to see larger view


 

 

 

 

 

 

 
Band and plunger removed, repeat on other band.

 

 

 

 

 

 

 

 

Remove shift collar, by use of a screwdriver, prying the shift collar towards inside of case, as show by red pointer.

 

Click on PHOTOS to see larger view


 

 

 

 

 

 

 

Shift collar coming off, towards inside of case.



Click on PHOTOS to see larger view

   
Go to PAGE 2
   

If you have any questions, you welcome to contact us at richard@route6x6.com
or call 812-944-1643 8am-6pm weekdays and will will help you.

Replacement parts available at RICHARD'S RELICS ATV Transmission parts page