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toodeep

Front output shaft seal replacement

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I was replacing a front output shaft seal on a customer machine so I thought I would take a few pics of the process since it's a pretty common issue. I'm hoping everyone keeps their machines cleaner than this one.

 

First thing to do is jack up the front of the machine and remove the front wheels. Then remove the mounting bolts on the front final drive so it can be slid forward. This model has the upper mount that also has to be removed to get enough clearance. You'll have the upper, rear lower and on certain models front mounting bolts and brackets.

 

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Once that is done you can slide the front final drive forward. Most of the time you can just grab both inner axles and pull it forward. You might have to position the handlebars just right so the tie rod ends clear and also use a pry bar to give it that little extra to get the drive line loose. Once it's forward enough the coupler on the motor side is spring loaded. Slide it forward enough to unhook it from the output shaft and move it to the side or remove it completely.

 

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Remove the o ring from the shaft and use a pick, old screwdriver, screws or whatever you have to pry the old seal out. 

 

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Once it's removed and everything is cleaned up it's time for the new seal (found under the final shaft section of a parts finder). I have some shrink tubing that I use to protect the seal from the grooves in the shaft when installing it. You don't have to use anything or wrap it with the plastic the seal came in just to take the chance of damaging it away. Find a socket/pipe the size of the outer edge of the seal to use as a driver (you can also use the old seal against the new when installing it to add a level of protection, unless it's really damaged from prying it out).

 

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Once the new seal it in install the o ring on the output shaft and reinstall everything in reverse order.

 

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Edited by retro
Exported back to thread
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1 hour ago, SlammedRanger said:

Good quick write up! And was that a huge ball of fishing line on the cv shaft?

 

probably old mans beard or at least that's what it looks like to me.

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10 minutes ago, Mac102004 said:

 

probably old mans beard or at least that's what it looks like to me.

I have no idea what old mans beard is lol unless your talking about an actual beard which im pretty sure your not lol

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2013 420FPM was the machine and that's net wrap (hay bales) on the axle that also got replaced. I figured I could get a cleaner machine for that write up.

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!... Old mans beard is what we call the green stuff that grows/hangs off the trees. Its better than gasoline to light a fire with!!!!!!!!

 

 

I've had a lot of issues with my output shaft seal. Replaced it twice, (once I thought it wasn't in far enough) but still to no real avail. Only difference is I have a Wide Open Kick out installed. When I pull my motor this winter, I'll have a better look at everything. 

 

I could NEVER have a machine dirty like that! I ride hard, play hard & wash it hard before I put it in the garage!!!!!!!!!

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11 hours ago, SlammedRanger said:

I have no idea what old mans beard is lol unless your talking about an actual beard which im pretty sure your not lol

 

Like wheeler said, grows on trees lol. I’ve never seen it wrapped around an axle but it is what it looks like haha

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10 hours ago, toodeep said:

2013 420FPM was the machine and that's net wrap (hay bales) on the axle that also got replaced. I figured I could get a cleaner machine for that write up.

 

I should have guessed net wrap, not like I don’t see it every day lol. I don’t see it wrapped around axles though haha. 

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Now that you say what old man's beard is , we have something like that here , it is like a kind of moss , but skinner , stringer and stronger than fresh moss , kind of like seasoned moss ----  sounds right ? 

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Hmm we got nothing like that up north. Or atleast not anywhere i have been. We are primarily flat farm land though with the occasinal wooded area. Zero swamps. And 1 big lake lol

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Spanish Moss grows in coastal  areas in the South. 

 

Gotta be something different up in the Dakotas.

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I just want to add, please be very, VERY careful when prying in, and around old seal to get it removed ?, YOU DO NOT WANT TO NICK THE CASE RIGHT THERE , OR IT WILL LEAK EVEN WITH A NEW SEAL IN THERE !. other than this, great instructions !!!!.

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