Rear front axle support grease zerk

[coolbrze]

Tried to grease the rear front axle support grease fitting on my MX5800 but grease was hard to go in & oozed back out. Does this mean it's full?

 

[Grouse09]

Unless you can see some type of damage to the zerk, it probably isn’t the zerk. It is probably the pressure behind the zerk. Lower your Front End Loader to slightly lift the front axle a tad. Or turn your wheel a bit to change the position of the guts behind the zerk.

If all that fails, you could change the zerk out, but I would focus on the easy things first.

 

[ruffdog]

King pins and front axle pivots are best lubed when pressure is off them, then the grease gets to where it really matters. Just use a jack or the loader to slightly lift while greasing.

 

[Fallon]

There is no "full", at least on the Ls, not sure on the Ms. The back side of that pivot & grease zerk is open to the axle housing. So excess grease falls into the oil there. A bit doesn't hurt anything, but you dont want to go hog wild pumping grease in there.

I'd disagree that things are best greased under load. If it's under load the 2 primary wear surfaces are going to be pushed tight together. The non bearing side of the joint will have all the space due to OEM clearances or wear. So all the grease will go fill the void on the side that needs it the least. Probably splitting hairs a bit, but greasing under load isn't superior.

Edit: nevermind... saw the previous reply said off, not on. Apparently I dont actually disagree.

 

[ruffdog]

Here is a good video on greasing king pins:

How to Grease Kingpins - International 47 - YouTube

The reason you jack it up is to allow the grease to get where the pressure is and that is were the wear will be. The same is for the front axle pivot because it has constant weight and not enough movement to work grease around.

 

[ruffdog]

Here is another thread about the subject:

https://www.tractorbynet.com/forums/kioti-owning-operating/188817-ck-front-axle-pivot-grease.html

 

[RjCorazza]

The front axle support on my L4060 has a breather plug that is removed first, then the zirk is greased until it flows out the breather hole.

 

[coolbrze]

Thanks guys will jack her up then grease. How often & how many pumps for this zerk?

 

[Grouse09]

My gut says “until release”. Or you may want to just go with 5 good ones and grease it more often.

 

[number two]

The front axle support on my L4060 has a breather plug that is removed first, then the zirk is greased until it flows out the breather hole.

I agree here
The little 1/8 pipe plug to be removed has a 7mm square head and is very tight.
Too tight for an open end wrench and no 7mm 4 or 8 point socket could be found at the time.
ViseGrips helped.,not ideal.
Good Luck!

 

[oosik]

coolbrze - - I hit all 36 zerks on my tractor, grapple & rear blade twice a year - spring & fall. Four strokes per zerk with a pump gun. Followed with shop rags to wipe up the old stuff that which has squeezed out.

 

[big bubba]

The front axle support on my L4060 has a breather plug that is removed first, then the zirk is greased until it flows out the breather hole.

yes that's your answer

 

[coolbrze]

The front axle support on my L4060 has a breather plug that is removed first, then the zirk is greased until it flows out the breather hole.

The front zerk does on my MX5800 also but I was asking about the rear zerk (no breather plug). The manual states to remove the breather plug & grease the front zerk but doesn't say anything about the rear one...

 

[big bubba]

yes you're right. my MX500 had a breather plug on ft. pivot. nothing in rear as i recall. is the rear zerk delivering? if so, just look for grease outflow around flange. if not, remove & replace zerk best regards

 

[RjCorazza]

Uhmm. I didn’t know my L4060 even had a zirk to the rear, sure enough I checked and it’s there (and no breather). I’ll try lifting the front end and give it its first greasing in 250 hours

 

[repete]

On my little L2550 the rear pivot support did not come with a zerk fitting. I had to replace the bushing due to wear and I drilled and tapped the piece for a zerk so it could be greased in the future. I always "unload" all the joints if possible when I grease the tractor so I get grease into the areas with pressure on them.

 

[FatTire]

A couple of years ago I asked a service guy at a large Kubota dealer about the breather plug, wondering how they get them out without chewing them up. He said something like, "We don't remove those, and I don't think anyone really does, just be careful not to over grease." I wonder how many people have never removed their plug?

 

[big bubba]

A couple of years ago I asked a service guy at a large Kubota dealer about the breather plug, wondering how they get them out without chewing them up. He said something like, "We don't remove those, and I don't think anyone really does, just be careful not to over grease." I wonder how many people have never removed their plug?

just remove the plug & pump till it exits from the breather opening, etc. not a big deal, that's why it's there, (within that model's design) it allows the flow. otherwise, the grease never gets to where it's needed.

 

[FatTire]

just remove the plug & pump till it exits from the breather opening, etc. not a big deal, that's why it's there, (within that model's design) it allows the flow. otherwise, the grease never gets to where it's needed.

Yes, that is the purpose of the breather plug -- my point is that this one is hard to remove the first time and it appears that some people may never remove it.