Grease fittings, or zerk fittings, provide a way to lubricate a sealed joint. A grease gun attaches to the top and grease is injected through the fitting. They are found on most mechanical equipment that has moving parts, including hydraulic machinery, automobile suspensions and aircraft. A clogged grease fitting means the joint will wear quicker, leading to mechanical damage that can be very expensive to repair. Clean grease fittings regularly to keep equipment in top shape.
Things You'll Need
- Spray degreaser
- Lint-free rag
- Grease gun
- Heat gun
Coat the grease fitting with degreaser and let it set for a few seconds. Wipe thoroughly with a lint-free rag. Twist part of the rag into a small point to clean the inside of the fitting head.
Attach the grease gun and test the fitting.
Heat the grease fitting with a heat gun so that the metal is very warm. Immediately attach the grease gun and use it. The warm grease may be soft enough for the grease gun to push it through.
Remove the grease fitting with a wrench. Spray the bottom of the grease fitting thoroughly with degreaser and wipe it with a lint-free rage.
Clean the grease fitting hole with a rag. Wipe out from the center of the hole to prevent debris from getting pushed further in.
Replace the grease fitting with a wrench so that it is snug. Test the grease fitting with a grease gun.
- AVWeb: Greasology
- "TechOne: Manual Transmissions"; Jack Erjavec; 2003
How to Install Range Hood Ducts
A vented range hood can be an asset to any kitchen by drawing away heat, smoke, grease and steam. It can make...
How to Remove Grease Fittings
Grease fittings are used in a wide variety of joints on a car or truck. These fittings are connected to a joint...
How to Grease a U-Joint with Flush-Type Fittings
All vehicles have lubrication points in their suspension and drive line components that call for a special grease. Without grease the components...
How to Unclog Grease Fittings
A grease fitting, commonly called a Zerk fitting, is attached over sealed metal joints that need lubrication. These joints are commonly found...
How to Remove a Stuck Pipe Joint
Plumbing is hard work. Pipes heat up and cool down and are inherently wet, which leads to corrosion, which causes stuck pipe...
How to Remove a Broken Grease Fitting
A grease fitting is a little port that channels grease gun-injected grease to a mechanical part that needs lubrication. They are commonly...
How to Clean Clogged Grease Fittings & Pins
Grease fittings and grease pins are essentially the same thing. They both allow a grease gun to be attached onto the top...
How to Change a Grease Fitting
Greasing your car or lawn tractor after an oil change lubricates the movable components of your suspension system. The grease fitting allows...
How to Install a Zerk Fitting
A Zerk fitting, commonly called a grease fitting, is a nipple-shaped fitting with a hole in the top that is sealed by...
How to Repair PVC Pipe
PVC pipe is simple and cheap to repair. Learn DIY home repair tips on the proper way to get a tight seal...
What Can I Use to Clean Copper Before Soldering?
Cleaning copper prior to joining pieces using a soldering process is important. Impurities on the metal will obstruct the molten solder from...