AXLE SEAL REPLACEMENT

[Condor 9]

Difficulty in removing axle on sundstrand 90-1140  C160 for seal replacement any comments welcomed.

Also what lubricant for replacement.

[ebinmaine 68,205]

Removing the axle isn't necessary to change seals. 

Can you post pics and describe what you've done so far?

 

 

[Condor 9]

I just purchased the seals for the hydro for the moment

[Condor 9]

Am I in the wrong forum? I thought I posted in transmissions axles

[ebinmaine 68,205]

1 minute ago, Condor said:

Am I in the wrong forum? I thought I posted in transmissions axles

 

Yep you did. No worries. 

[ebinmaine 68,205]

The big thing on replacing seals will be removing the wheel hubs. 

 

DO NOT USE A 3 JAW PULLER. 

 

There are good threads on here about creating a good usable hub puller. 

I'll be removing hubs today. I can post pics too. 

[ri702bill 8,479]

Are you having difficulty removing the axle HUB?? The hub has to come off, the axle can stay put.

DO check for excessive play in the outer bearing - if it is bad, the Unidrive comes out and apart... at that point just replacing the seal is a waste of time & money...

Edited August 3 by ri702bill

[ebinmaine 68,205]

Click on the link below then scroll down a bit. 

There's a few good pullers pictured. 

 

 

 

 

 

 

 

[ebinmaine 68,205]

51 minutes ago, Condor said:

what lubricant for replacement

Just the regular oil is fine. 

 

 

4 minutes ago, ri702bill said:

DO check for excessive play in the outer bearing

 

 

This is important.  

 

The seals certainly can be aged and dry out. 

However.... a common cause for a bad seal is a bad bearing.  

 

 

[ebinmaine 68,205]

@Condor

Here's a few pics of the puller setup I use.  

This is a home shop made piece. (Not my build).

 

 

 

 

 

 

These are 7/16-20  x 3" grade 8 bolts. 

 

 

 

 

I put 7/16 lugnuts and washers on to help spread the pulling strain/pressure. 

 

 

 

 

 

 

[Condor 9]

2 hours ago, ri702bill said:

Are you having difficulty removing the axle HUB?? The hub has to come off, the axle can stay put.

DO check for excessive play in the outer bearing - if it is bad, the Unidrive comes out and apart... at that point just replacing the seal is a waste of time & money...

All above information is very helpful, will do all evaluation on info provided thanks all!

[stevasaurus 22,841]

For oil replacment, you need to see what oil you have in there.  If your old oil is red, ATF.  If it is golden, 10W-30.  You want to use the same kind of oil that is in there.  

[ri702bill 8,479]

Is that "weld" or rabbit droppings holding the nut in place??? I too can lay a bead with the worst of them....!! 

[adsm08 2,171]

19 minutes ago, ri702bill said:

Is that "weld" or rabbit droppings holding the nut in place??? I too can lay a bead with the worst of them....!! 

JB weld

[ri702bill 8,479]

At least it is in compression instead of tension. It just needs to stand up to the rotary force !! 

[ebinmaine 68,205]

1 hour ago, ri702bill said:

Is that "weld" 

 

That's a series of six large welds. 

I'd bet it would pull a fair amount before I ever think of replacement. 

 

 

[oliver2-44 9,847]

2 hours ago, ri702bill said:

Is that "weld" or rabbit droppings holding the nut in place??? I too can lay a bead with the worst of them....!! 

That’s a new one.  EB certainly brings out the “fertilizer” in these conversations 

 

Of course. I don’t have any room to comment on the weld   
“Burn them in hot and deep so it doesn’t matter what they look like on top”

Edited August 3 by oliver2-44

[ebinmaine 68,205]

And there not my welds.....

[squonk 41,291]

Comment on Eric's puller. If building your own puller, try to use fine thread on the force screw. It will pull slower with more pulling force. Kind of like low gear on a tractor.

 

Edited August 3 by squonk

[ebinmaine 68,205]

2 minutes ago, squonk said:

Comment on Eric's puller. If building your own puller, try to use fine thread on the force screw. It will pull slower with more pulling force. Kind of like low gear on a tractor.

 

 

 

Agreed. 

 

That was discussed when I bought it.

This is the nut & bolt handy to the builder when it was put together. It's treated me well as is. 

 

Given the strength of the setup I have now I'll likely be using it for years. 

 

I'm known to be a tad bit rough on tools so  If I ever do break or damage the threads I'll go to a fine thread. 

 

[pfrederi 17,856]

Make sure yo have drained the transmission before you try pulling the seal Yours is hydro and there are few qts of fluid that will come running out when you pull the seal...