Front axle pivot maintenance question

[The Evil Twin]

The owners manual says to remove the breather plug, apply grease till it overflows the breather port and reinstall the plug. Easy enough.
I only found one plug on the front pivot. The rear does not have one that I can see. Didnt think much of it at the 1st interval. 4 pumps in each and called it good. This time i started thinking. My wife says thats usually not cheap when i do. Lol.
My questions are....
1) is there a plug on the rear pivot?
2) if not, are the front and rear pivot bearings connected in some way?

 

[Russell King]

No idea but you can probably get on the illustrated part list and see what it looks like

Kubota Tractor Corporation - Illustrated Parts List

- K-PAD - Parts Lists - Illustrated Parts Lists - diagrams

apps.kubotausa.com

 

[The Evil Twin]

Yeah , it wasn't very helpful. Didn't try on a PC though. Maybe it's better. I'll try again later in.

 

[2001TLB]

The owners manual says to remove the breather plug, apply grease till it overflows the breather port and reinstall the plug. Easy enough.
I only found one plug on the front pivot. The rear does not have one that I can see. Didnt think much of it at the 1st interval. 4 pumps in each and called it good. This time i started thinking. My wife says thats usually not cheap when i do. Lol.
My questions are....
1) is there a plug on the rear pivot?
2) if not, are the front and rear pivot bearings connected in some way?

My L48 has the same setup, breather plug on the front, none on the rear. I am just going to say the front breather is the only breather. Maybe open it before greasing the rear and then grease the front?

 

[North Idaho Wolfman]

No plug on the rear, it vents via the propeller shaft seal, don't over grease it as it just forces grease up the tube.
The front has needs venting and if you do not remove the plug you can blow the O-ring seal out or worse yet crack the case.

 

[2001TLB]

No plug on the rear, it vents via the propeller shaft seal, don't over grease it as it just forces grease up the tube.
The front has needs venting and if you do not remove the plug you can blow the O-ring seal out or worse yet crack the case.

View attachment 101950

Exploded drawings are great. Thanks for the posting.

 

[The Evil Twin]

That there is what I was looking for! Thank you @North Idaho Wolfman ! I figured as much but wanted to be sure. Most times I don't put but 2 or 3 pumps in any zerk anyway.
I appreciate the info!

 

[2001TLB]

A couple of days ago I was greasing the L48. When I got to the from axle pivot grease fitting, I stopped to get a wrench to remove the vent plug. It is a 7mm square pipe plug, I guess. Unfortunately, when I tried to loosen plug, it felt like the open end wrench was going to slip and round off the corner. So I stopped and looked for a tool that would be more appropriate than an open end wrench.

Ideally, a 7mm 4 point square socket would be just the ticket. I spent way too much time on line looking for a 4 point socket, and also an 8 point socket in the 7mm variety, to no avail. I have no idea why someone would have tightened the plug gorilla tight, except that whoever. it was, must have had the right wrench.

Can anyone point me in the direction of a 7mm 4 point or 8 point socket? I have a few small standard 8 point sockets, 1/4, 5/16, and 3/8. I think they were my father in law's at one time.

Thanks for your time,
Doug

 

[North Idaho Wolfman]

A couple of days ago I was greasing the L48. When I got to the from axle pivot grease fitting, I stopped to get a wrench to remove the vent plug. It is a 7mm square pipe plug, I guess. Unfortunately, when I tried to loosen plug, it felt like the open end wrench was going to slip and round off the corner. So I stopped and looked for a tool that would be more appropriate than an open end wrench.

Ideally, a 7mm 4 point square socket would be just the ticket. I spent way too much time on line looking for a 4 point socket, and also an 8 point socket in the 7mm variety, to no avail. I have no idea why someone would have tightened the plug gorilla tight, except that whoever. it was, must have had the right wrench.

Can anyone point me in the direction of a 7mm 4 point or 8 point socket? I have a few small standard 8 point sockets, 1/4, 5/16, and 3/8. I think they were my father in law's at one time.

Thanks for your time,
Doug

3/8 Sq. Dr. Socket 7mm Double Square Length 26mm

Input Drive Size: 3/8" Drive Shape: Square Length: 26mm Type: Double Square Socket Output Size: 7mm Opening: Double Square Product Dimension (Refer Line Drawing Image): D1 Size: 13.3mm D2 Size: 17.4mm H Size: 6.5mm L Size: 26mm

kokenusa.com

But you have to oder two from here:

Ko-Ken Socket 7mm Double Square 26mm 3/8 Sq. Drive 3415M-7 | Zoro

Order Ko-Ken Socket 7mm Double Square 26mm 3/8 Sq. Drive, 3415M-7 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

And if you want to be all pro like:

Snap-on Metric S6108A 4 Point Square 7mm Specialty Universal Swivel Socket MINT for sale online | eBay

Find many great new & used options and get the best deals for Snap-on Metric S6108A 4 Point Square 7mm Specialty Universal Swivel Socket MINT at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[The Evil Twin]

12 point triple square will work as well, if it is not extremely tight. Open end wrenches often flex too much on Uber tight fasteners.

 

[2001TLB]

Thanks for the great links. Sockets ordered.

Doug

 

[Mack90]

I think I may have blown my front oring by not removing the vent. I don't have a leak... yet. What kink of mess have I created?

 

[North Idaho Wolfman]

I think I may have blown my front oring by not removing the vent. I don't have a leak... yet. What kink of mess have I created?

Is a super easy fix, pull and replace it.

 

[The Evil Twin]

Is that a dealer parts look up , or are you on the web? I would love to be able to see more exploded views.

 

[Russell King]

Illustrated parts lists are available on Messicks and Coleman’s website and also on Kubota website linked here

Kubota Tractor Corporation - Illustrated Parts List

- K-PAD - Parts Lists - Illustrated Parts Lists - diagrams

apps.kubotausa.com

not sure what NIW is posting but it’s similar information

 

[North Idaho Wolfman]

I use multiple sources but my main go to is the link Russell noted.

 

[The Evil Twin]

Perfect! I need to start using a PC more often than this phone.

 

[Russell King]

Perfect! I need to start using a PC more often than this phone.

I think the Kubota site is pretty friendly to mobile devices but the diagrams for older tractors do get pretty fuzz when enlarged so a PC is much easier than a phone.