Tag Axle Lubrication

[dale farley]

I've looked in my Prevost manual and in the Articles section, but I haven't found the answer to my question. Am I correct in assuming that I use the same 85-140 oil in my tag and steer axles that I use in the drive axle?

[dale farley]

I see I posted this a little late last night. Does anyone know the answer?

[dalej]

I use the same oil Dale.

You must be getting your bus in tip-top shape! It's nice to have the time to work on them isn't it.

[dale farley]

Dalej, I am trying to check everything before I hit the road tomorrow. We plan to leave after church (around noon) and head to Yellowstone for a couple months, then go straight from there to OKC.

I changed my differential oil yesterday, although it didn't necessairly need it. My tag axle is showing the oil at the minimum mark, and since I have never put any in it, I thought I should top them off. I assume the little plug in the middle just pops out. I also assume I need to be careful and not tear it up and cause it to leak. Any tips???

[phorner]

Yes, the little plug in the center pops out. But, you do need to be careful, as it's not too hard to create a leak there.

Also, if there's a small vent hole in the center, make sure it's open.

I use the Lucas hub oil which is supposed to have an advantage of being "slicker" and is also supposed to prevent minor leaks. The leaks claim seems like a stretch to me.

[dalej]

Just my opinion,

You don't need to worry about anything while removing the plug. If it starts to leak afterwards, your plug is old and hard and should be replaced.

[phorner]

Dale,

Where do you get the replacement plugs? I wouldn't mind having a couple of spares in the tool box "just in case."

I figure if I'm prepared, there's very little chance I'll actually need them!

[dale farley]

Paul I too am wondering where you get those plugs. I would like to have a couple spares.

How much oil am I takling about adding to each hub if they are now at the Minimum mark?

[phorner]

My tag and steer hub caps typically don't take much at all. It's probably just as important not to overfill. I maintain mine about half way between the min and max.

[dalej]

I have a Fleet Pride close by. They are a standard part at any truck shop.

I keep a new one in the tool box, you never know. I had a cap leaking last year and had to replace it.

When inspecting you can see where the oil is leaking from, sometimes the plug gets the blame when it's the cap.