Had grease fitting break off, after I extracted the threaded part it took me awhile to convince myself whether it used metric or SAE zerks. Finally decided it uses 1/4-28 zerks, for anyone who follows in my footsteps. Seems goofy, and a bit frustrating, on a tractor bred and raised in Asia.
LA402 loader uses 1/4-28 zerk
- Thread starter BeezFun
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art
Super Member
Much of them are made in the US, the loaders are totally built by Kubota in Georgia!
Recoveryhill
Gold Member
Drill and tap the 1/4-28 hole 52mm from the edge clear through the 1/4" plate. Welcome to America's lapse in following through with metric conversion in the 1970's when it was supposed to be a done deal. Now we get to wonder about threads, buy two sets of socket, open end and box wrenches and p*ss the rest of the world off with our machinery exports. The U.S., Liberia and Burma (Myanmar) are the only nations on the planet that have not adopted The International System of Units. Good company, eh.
All this stuff is fabricated with Fanuc controlled CNC machinery whose primary X,Y, Z measuring systems are ISU (metric) so it's not a manufacturing problem. The dual system of fasteners, pins, bushings and on and on do nothing but add costs to our products, both domestically and foreign.
It seemed to many at the time, and I was there in the precision fabrication industry, that we just weren't bright enough to learn a new and more simple system. There is nothing rational about measurements in inches, feet, yards and miles but there we remain.
10 mm = 1 cm
100 cm = 1 m
1000 m = 1 km
These are all metric distance measurements, all divisible by 10. We end up with the mile which is 5,280 feet?? The problem goes beyond length, it involves area, mass, volume, temperature, electricity and time. We're out of sync on all.
A millimeter is the thickness of a credit card.
A centimeter is about the width of your fingernail
A meter is about the length of a guitar
A kilometer is a bit longer than a half a mile.
Visualize that and it will start to be comfortable.
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ritschner
Silver Member
Mine (LA463) uses 6x1.00mm. But since zerks have a lot of taper I bet a 1/4x28 would thread in. They are awful close.
Chilly807
Elite Member
More likely it's a tapered pipe thread, 1/16 npt and 1/8 npt are common SAE sizes for grease fittings. My experience with grease fittings has been that if it'll thread into the hole and stay there it's the right size..
Sean
Sean