MESSMAKER
Veteran Member
I have a couple of fittings that are not taking grease. I plan on replacing them. What is the thread size?
Grease Fittings
- Thread starter MESSMAKER
- Start date
SSdoxie
Elite Member
Loader or tactor zerks? Don't know the thread sizes but loader is USA built, probably SAE NPT thread while tractor is likely metric.
mrmikey
Veteran Member
There are a few sizes, Zerk Fittings / Grease Fittings ....Mike
OP
MESSMAKER
Veteran Member
I know there are a lot of choices. I am trying to narrow it down. i am going to need to replace the ones pointing down on the front axle of a 225.
Gil Case
Gold Member
AS Mike said there are a few different sizes, what he left out is "on our tractor". So take them out and find out which size the ones you have are. I found Metric, NPT and SAE on my tractor and implements.
mrmikey
Veteran Member
Yep, my Jinma had mostly 1/8"npt and a couple 1/4" unf, the backhoe had terrible 1/8"npt, my loader,a Koyker had I think 1/8npt....Mike
They will more than likely be metric. I have a DK40SE HST and the 2 of mine under the axle will rarely take grease. The tolerance is extremely tight! Your fittings are probably okay. I believe the threading is a 1.5 spacing vs a 1. Get a thread gauge from fastenal or hardware store and check the thread spacing when you take it out. Be careful of the pressure when you take the fitting off. Hope this helps?
troutsqueezer
Veteran Member
Head on down to Harbor Freight and buy the plastic bin box that has every size and angle for under ten bucks.
texasjohn
Super Member
I've had several zerks refuse grease. This was on a FEL and there was a removable pin which was being greased by the zerk....I removed the pin just enough to see the bottom of the zerk...then was able to insert grease...drove pin back in and now the entire assembly takes grease again.
Point is, problem may be not with zerk itself but rather caked grease inside...so, if you can get to the fitting under the zerk, you may be able to resolve the problem...worth thinking about...when I simply replaced the zerk, it still wouldn't take grease...had to mess with the pin.
I have two of the HF plastic bins...one metric and one SAE...grease zerks. Yes, yours are likely metric.
Point is, problem may be not with zerk itself but rather caked grease inside...so, if you can get to the fitting under the zerk, you may be able to resolve the problem...worth thinking about...when I simply replaced the zerk, it still wouldn't take grease...had to mess with the pin.
I have two of the HF plastic bins...one metric and one SAE...grease zerks. Yes, yours are likely metric.
