Grease gun (tool)

A grease gun is a common workshop and garage tool used for lubrication. The purpose of the grease gun is to apply lubricant through an aperture to a specific point, usually from a grease cartridge to a grease fitting or 'nipple'. The channels behind the grease nipple lead to where the lubrication is needed. The aperture may be of a type that fits closely with a receiving aperture on any number of mechanical devices. The close fitting of the apertures ensures that lubricant is applied only where needed. There are four types of grease gun:

  1. Hand-powered, where the grease is forced from the aperture by back-pressure built up by hand-cranking the trigger mechanism of the gun, which applies pressure to a spring mechanism behind the lubricant, thus forcing grease through the aperture.
  2. Hand-powered, where there is no trigger mechanism, and the grease is forced through the aperture by the back-pressure built up by pushing on the butt of the grease gun, which slides a piston through the body of the tool, pumping grease out of the aperture.
  3. Air-powered (pneumatic), where compressed air is directed to the gun by hoses, the air pressure serving to force the grease through the aperture. Russell Gray, inventor of the air-powered grease gun, founded Graco based on this invention.
  4. Electric, where an electric motor drives a high pressure grease pump. These are often battery-powered for portability.
"Grease gun" redirects here. For the firearm, see M3 submachine gun.
A grease gun (pneumatic)

The grease gun is charged or loaded with any of the various types of lubricants, but usually a thicker heavier type of grease is used.

It was a close resemblance to contemporary hand-powered grease guns that gave the nickname to the World War II-era M3 submachine gun.[1]

Caution when using grease gun
  • Keep your face away from the discharge port to avoid spraying. Some undesirable things such as machine dust and chemicals may spew out if you stay close to the tool
  • Read the instructions carefully and perform maintenance regularly
  • Always wear protective equipment (protective gear, shoes,...) when installing and disassembling
  • Do a daily check
  • Use strictly according to specification
  • Stop using when you feel it is dangerous or unusual
  • Prevent water and dust from entering the machine as these impurities may affect the grease quality
  • Oil in the machine may be spilled, so please operate with care[2]

See also

References
  1. Ingram, Mike (2001). The MP40 Submachine Gun. Zenith Imprint. p. 85. ISBN 0760310149.
  2. "Everything about Grease gun". Daniel Duong. Retrieved Sep 20, 2019.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.