Gravely Rotary Plow - oil seal question

[JinRI]

I've got an older style Gravely Rotary plow, the kind that hold 140w oil.

It was bone dry of oil when I got it. I took off the top & bottom bearing caps, which have oil seals pressed into them.

I bought new oil seals (2" diameter). When knocked out the old seals, I noticed that they were designed differently from the replacement seals. The older ones were essentially as thick as two new ones sitting on top of one another.

Has anyone changed the seals before?

Thanks for any help or insights.

 

[FlaDon]

I've got an older style Gravely Rotary plow, the kind that hold 140w oil.

It was bone dry of oil when I got it. I took off the top & bottom bearing caps, which have oil seals pressed into them.

I bought new oil seals (2" diameter). When knocked out the old seals, I noticed that they were designed differently from the replacement seals. The older ones were essentially as thick as two new ones sitting on top of one another.

Has anyone changed the seals before?

Thanks for any help or insights.

Install 2 of the new seals in each cap if they are single lip seals. Put some grease between the lips before you install the caps on the drive. Face both lips in toward the gear.

 

[2manyrocks]

I think these rotary plows had some bronze parts in them that require the older type of gear oil without modern additives that eat up bronze. I remember having to ask my local oil distributor for the oil, and he happened to stock it for this reason. Not something you're likely to find at the box store.