WheelHorseVH 103 #1 Posted August 25 Hi guys. 520H, noticed right side has caked on oil. Nothing on the left. Any ideas what to chase down? Thank you. Share this post Link to post Share on other sites
pfrederi 17,500 #2 Posted August 25 clean it off and watch to be sure.... but 95% certain axle seal.... 1 Share this post Link to post Share on other sites
cleat 5,637 #3 Posted August 25 (edited) Looks like a leaking axle seal to me. Not too bad a job if the hub comes off easily. Since it has been getting soaked with oil it may slide off easier. Edited August 26 by cleat 2 Share this post Link to post Share on other sites
lynnmor 7,229 #4 Posted August 25 (edited) Be sure to jack it up and check the axle bearing for play, there should be next to nothing up & down and left to right, in and out play isn't a problem. I too, think the seal is spent. Edited August 26 by lynnmor 1 Share this post Link to post Share on other sites
squonk 40,699 #5 Posted August 25 1 hour ago, WheelHorseVH said: Hi guys. 520H, noticed right side has caked on oil. Nothing on the left. Any ideas what to chase down? Thank you. I believe the fan pulls the air from that side of the tractor. Axle seal leak will coat everything because of it. Whilst your replacing the seal, it may be a good idea to remove the fender pan and really clean the trans cooling fins good. 1 Share this post Link to post Share on other sites
lynnmor 7,229 #6 Posted August 25 I buy the 6449 seals on the popular auction site. With luck they can be pryed out and then use the hub as a slide hammer to push them back in. On a 520H the seal should be recessed a bit to keep the plastic spacer from wearing against them, a washer that fits can work to beat it back in 1/32". Share this post Link to post Share on other sites
WheelHorseVH 103 #7 Posted August 26 Thank you all, gents, I really appreciate the kind and quick help as always. @lynnmorI would never have looked on the auction site if you hadn’t said that, I would have figured it would be cheap garbage. I will look and order it tonight. Going to also start searching for instructions on pulling the hub, if anyone has a good forum link handy please let me know so I am not asking for a retype of instructions. I saw one where @ebinmaine used a special puller but I don’t have that or any welding skills (still/yet). Perhaps @cleat will be right and I get lucky that its coated in enough hydro fluid that it doesn’t need much convincing. 1 Share this post Link to post Share on other sites
ebinmaine 66,411 #8 Posted August 26 I didn't design or build this puller but I believe you'd be welcome to copy the ideas. There's also good pics by @953 nut somewhere. 1 Share this post Link to post Share on other sites
