Oil bath front hubs.

[Jillmd]

HI,

I built a moose hunting buggy up here in Alaska. It has 2 front steer 2.5 ton Rockwell axles (four wheel steer). I recently removed the stock hubs and bolted up 611 Meritor gear reduction hubs to the 2.5 axles. In this configuration, I do not or could not us the CTIS. Is there any reason why I could not remove the CTIS seals, plug the air port holes, and make the entire hub oil bath? I have new inner seals, to me they should be able to hold oil in if they keep water out. Thank you in advance for your help and sorry if this is the wrong forum for this question.

 

[Ronmar]

you are talking about both inner and outer bearings and hub gears oil lubricated? I suppose you could, you would have to adjust the oil level in the fronts to accommodate the added volume of the inner hub, capped ctis passages and bearing exposed by removing the plain and ctis seals…

 

[Jillmd]

you are talking about both inner and outer bearings and hub gears oil lubricated? I suppose you could, you would have to adjust the oil level in the fronts to accommodate the added volume of the inner hub, capped ctis passages and bearing exposed by removing the plain and ctis seals…

Yes, lubricate both bearings and hub gears with oil. What number is the plain seal?

you are talking about both inner and outer bearings and hub gears oil lubricated? I suppose you could, you would have to adjust the oil level in the fronts to accommodate the added volume of the inner hub, capped ctis passages and bearing exposed by removing the plain and ctis seals…

yes, lubricate both bearings and hub gears with oil. What number is the plain seal?

 

[Ronmar]

I think they call it a seal guide on that Meritor sheet. They are the 24 and 25 parts shown on either side of the hub 26, in your drawing. It goes plain seal, outer CTIS seal, air gap(over the air port in the spindle) then inner CTIS seal and plain seal on the other side before you get to the inner bearing.

They are the 25-26 pairs circled in this pic from the 24P manual… Cool rig by the way

 

[Floridianson]

I did it to the rear of my 1088. As for adjusting the level of fluid you still just service the same way just more fluid just takes longer to fill.

 

[Jillmd]

I think they call it a seal guide on that Meritor sheet. They are the 24 and 25 parts shown on either side of the hub 26, in your drawing. It goes plain seal, outer CTIS seal, air gap(over the air port in the spindle) then inner CTIS seal and plain seal on the other side before you get to the inner bearing.

They are the 25-26 pairs circled in this pic from the 24P manual… Cool rig by the way


View attachment 877828

Thank you!

 

[Jillmd]

I did it to the rear of my 1088. As for adjusting the level of fluid you still just service the same way just more fluid.

Have you had any leaks coming out and around the inner seal?

 

[Floridianson]

Had it done for 2 years and no leaks. Did sell the truck with no leaks.

 

[Jillmd]

Had it done for 2 years and no leaks. Did sell the truck with no leaks.

Awesome. Thank you

 

[coachgeo]

Best folk to ask questions on this for they likely have done what your thinking more than once is https://westerncanadianrockwell.ca/