greasing TN rear hub

[jimg]

Been reading again...the manual says when greasing the rear hub the tires need to be turned while pumping grease so its distributed uniformly. A couple questions...how uniform is uniform, how important is it that it be uniform, how do you do this? I cant imagine jacking the tractor every few hours for a lube. Short of jacking either the grease just gets pumped at a single position and the turning wheels spreads it around eventually or its a 2 man operation where one pulls ahead slowly while the other pumps grease. Sorry but Ive never done this drill before.

 

[Soundguy]

Maybee this is where a hand grip or electric greas gun comes in handy... along with some help..

Soundguy

 

[jimg]

Guess so...seems odd the maintenance routine needs two people to do properly.

 

[mahlers]

I just give it a few shots of grease every week or so, and from looking at the opposite side, it sure looks like the grease is getting distributed OK. Something tells me that nobody in their right mind is going to try to grease the tractor while it's rolling, and jacking it up to grease the hubs seems excessive.

 

[jimg]

Thanx...thats what I thought. Theres no way Im going to work on a moving tractor and Im certainly not jacking the thing up every lube cycle. Who writes CIH manuals?

 

[Rowski]

I basically do it as mahlers doe it. Just a shot or two.

I've had my nose in the on-line part catalog for TN series (3+ hours) trying to find a switch for my light problem. I'm getting pretty good at finding things .

I noticed that the grease fitting is lubricating an axle support bearing. The is a seal located to the outside of the bearing. I believe they are recommending that procedure so you don't stress out the seal and lube the bearing uniformly. I also looks like if you really pump a lot of grease in you could stress the inner seal sealing tranny fluid and possibly contaminate the hydraulic oil.

 

[Soundguy]

Interesting.. so thay have a bearing with a seal on either side... I was wondering about that.. IE.. If it could have been splash lubed via the axle trumpet.. but that answers the question.

Soundguy

 

[jimg]

Derek
Thanx for the posting. The operators manual doesnt mention any of this so its hard to make an informed change of procedure. I wondered though if adding grease at one point would result in it being spread around once the tractor was moving. The front hub is completely different w/ an oil fill/drain port in it.

Soundguy...on my first read thru the operator manual I was surprised to discover that the rear hub needed grease. I thought its lube would come from thru the axle. I still dont completely understand why it would be designed this way.

 

[Soundguy]

yep.. lots of axle bearings are splash lubed from the diffy sump. There are obvious exceptions.. like outboard planetaries... and the cases where there is a sealed hub.. like yours. I've seen a few antique examples with sealed hubs.. or externally greased ones.. for instance.. my JD-B has grease fittins where the axles eit the trumpets.. etc.. IH cubs have a pto grease zerk for when you use them as stationary power as they aren't getting splash lubed from the trans gears.. etc..

Soundguy

 

[DieselPower]

May seem like a simple solution to a simple problem but you could alway's install hoses from those grease fittings and remotely mount them. Then you could pump in your grease while the tractor is moving.