420C Right Track no PULL

454BBGB · Post by **454BBGB** » Mon Jun 25, 2012 8:19 pm

420C lost all pull on the right drive. What a treat wandering back to the shop . Reverse ,foward , left . Worked great up until no PULL on right side. All of a sudden GONE . Thanks in advance for the help .

Also would like to add a pic , any help with that would be appreciated . Thanks

Willyr · Post by **Willyr** » Mon Jun 25, 2012 8:25 pm

Open your square inspection cover under the seat (4 7/16 bolts). Move the handle. Do the innards move with the handle? If no the handle has let go. If yes, uhoh s**ks to be ---. Another possibility is if you recently adjusted the clutch and the bolt came loose. That will also give you little reaction.

454BBGB · Post by **454BBGB** » Mon Jun 25, 2012 8:50 pm

Removed cover all inners move . Not pickled , all dry . Clutch cam hitting all on presure plate . A head scracher .

Willyr · Post by **Willyr** » Mon Jun 25, 2012 10:20 pm

Is the brake still attached?

Yes very strange that it would go abruptly on one side.

Do you encounter any resistance when you pull the lever?

You said it hits the fingers. After it presses on the fingers and you pull to the brake application point, did the fingers go in more? Or does it only kiss the throw out bearing?

Did you have power still to the track so you could go straight, just not turn to the right? Or did you lose power as well as steering?

Post by **Lavoy** » Tue Jun 26, 2012 1:07 am

If no power at all, could be broken drive shaft, or pinion shaft, or stripped the splines of the clutc discs of the ring gear carrier. Probably have to pull the final do determine.
Lavoy

454BBGB · Post by **454BBGB** » Tue Jun 26, 2012 4:43 am

No power to the track at all. Pull back on stick and machine has no go .. Really didnt want to here Lavoys statement "Probably have to pull the final do determine. " I am going with the stripped splines of the clutch discs. Thats what it seemed like to have happened . Into the case we go .

Thanks for the suggestions. I will post the findings soon.
Lavoy -made the plate and disc purchase from you in 08 , still under warranty ?I know that answer already. Looking to make another purchase soon . I will keep in touch . Thanks again to all.

Willyr · Post by **Willyr** » Tue Jun 26, 2012 11:43 am

Dont forget the pictures!

454BBGB · Post by **454BBGB** » Mon Jul 02, 2012 6:02 pm

Got all apart Sunday , nothing out of ordinary all fibers and steels still strong . Axle splines all in tact . Could the pressure plate be an issue ?All springs seem to be all in place , not broken (I hope) Misplaced the tool I had purchased in the past . Believe me I will find it . When removing track all was tight and turning equal with the left side .. Any suggestions , I thank you in advance ..

440 iron popper · Post by **440 iron popper** » Mon Jul 02, 2012 6:32 pm

Did you check in the middle of the differential Hub where the Internal splines match witch those of the drive shaft? It might be stripped. Mine ended like that. You can shorten the drive shafts to use the healthy splines on the extremities. Good hubs are hard to find, believe me! Mine is stripped in the middle and at extremities. They gave the crawler a second life with that repair but it's not a cat (9 lifes

)... I Hope that helps.

Willyr · Post by **Willyr** » Mon Jul 02, 2012 6:32 pm

Keep digging into your crawler.

If you dont understand how to post the pictures. Post a link and I will post them for you like I did with AllenS.

Also FB will host pictures if they are public.

454BBGB · Post by **454BBGB** » Mon Jul 02, 2012 9:01 pm

http://s1256.photobucket.com/albums/ii4 ... IM1536.jpg
Playing in the yard .. Thanks for the help . I will keep digging ..

AllenS · Post by **AllenS** » Tue Jul 03, 2012 4:20 am

Willy, how do you link pictures to this site? Picasa is where I store my pictures if that helps.

Willyr · Post by **Willyr** » Tue Jul 03, 2012 5:42 am

is from 454BBGB playing in the yard.

AllenS, the trick is when you go to the image. In Firefox you right click on the image with the java menus off by default. You want to view the image and copy the address that is in the title bar. Then its a matter of using the little Img buttons. Click on the Img button, paste the address, then click on the Img button and your done. Also dont let the picture be larger than 800x600. It is kind of rude when a user posts a image that is so huge that runs across the page for a mile.

Fortunately in photobucket, there is a command. Either below the image or after you are viewing the image on the right hand side it will say email on one line, image on second, and something else on the third. Basically you just click on the second and photobucket will put the statement into your buffer so you only need to paste in your message to here.

454BBGB · Post by **454BBGB** » Wed Jul 04, 2012 10:40 am

Happy 4th , be safe. Willyr thanks for posting the pic. Got into rear diff today all good. I will keep digging ..

vtjoe · Post by **vtjoe** » Wed Jul 04, 2012 12:17 pm

just a thought ..I wonder if somehow the right final drive clutch pressure plate is somehow stuck in the disengaged mode as in the fingers are stuck IN----- therefore no drive/pull!! do a setup of the clutch on the right side
sounds like you are in way deep now

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420C Right Track no PULL

420C Right Track no PULL

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