How to Remove a Broken Grease Fitting Determine which part of the grease fitting is broken. Attach a wrench to the lower portion of the grease fitting. Place a specialized grease fitting removal tool over the grease fitting. Click to see full answer. Keeping this in view, how do you replace a grease fitting? How to Change a Grease Fitting Clean the area around the broken grease fitting with a rag. Place an appropriate size open-end wrench around the hex nut of the fitting. Thread a new grease fitting into the grease hole until you can no longer turn it by hand. Apply grease to the fitting as usual with your grease gun. Secondly, can you put a grease fitting in ball joint? Most manufactureres use sealed ball joints that do not come with grease zerk fittings. You can use a grease zerk needle attachment to get past the dust boot and pump some grease into that ball joint. One may also ask, how do you free up a grease fitting? Keep grease fittings and pins clean and clear of dirt, debris and hardened grease so they remain effective. Spray a petroleum-based spray lube onto a grease fitting or grease fitting pin, then wipe it off with a rag. Heat up clogged grease fittings and pins with a standard hair dryer or a heat gun on the low setting. What is a Zerk fitting?A grease fitting, grease nipple, Zerk fitting, or Alemite fitting is a metal fitting used in mechanical systems to feed lubricants, usually lubricating grease, into a bearing under moderate to high pressure using a grease gun.