A grease gun is a tool used to inject lubricating grease under pressure into engines or machines. It has three main components: a metal barrel, a propulsion control, and a grease delivery device. Different types of grease guns are available, including trigger, lever, pneumatic, and battery-operated. Proper operation requires operator training and calibration of the tool. The grease is transmitted to specific parts of the engine using a special fitting called a greaser or Zerk. Over-lubrication can cause damage, so the operator must know the amount of grease required.
A grease gun is a special tool used to inject lubricating grease, under pressure, into engines or other moving parts of machines. Grease guns, like the caulk guns they resemble, are generally powered by a cartridge of disposable grease, although some grease guns are filled manually. Different types of grease guns are characterized by the power source to create the pressure that pushes the grease out of the gun and into the motor to be lubricated. Some popular types of grease guns are trigger, lever, pneumatic, and battery operated.
There are three main components of a grease gun: a metal barrel that contains the grease itself; the propulsion control, which is a trigger or lever; and the grease delivery device, either a flexible hose or a rigid metal tube, both of which are fitted with a special nozzle called a “coupler.” The grease barrel is typically 15 to 18 inches (38 – 46 cm) long, and the delivery device, either rigid tube or flexible hose, can be 12 to 36 inches (30.5 – 91.5 cm) long. An electric grease gun will include a regular power cord, and a pneumatic grease gun will have an air hose attachment. One type of grease gun that has gained popularity is the cordless grease gun, which incorporates a battery pack that can be as large as the barrel of grease.
A grease gun is designed to handle grease that is often very thick, sometimes approaching the consistency of fudge. You need to transmit that grease to only those parts of an engine that require such a heavy lubricant, without contaminating other parts of the engine and without allowing the grease itself to become contaminated. This is accomplished by installing a special fitting, variously referred to as a greaser, greaser, or greaser Zerk. The attachment is installed in the motor housing and has a spring-loaded protective cover that prevents contamination from entering and grease from escaping.
Proper operation of a grease gun requires both proper operator training and proper calibration of the tool itself. The operator needs to know the amount of grease required by the part being lubricated, and the amount of grease that will be discharged with each pump of the trigger or lever, because over-lubrication can cause damage. The operator presses the nozzle of the grease supply tube or hose against the Zerk fitting with enough pressure to open the spring-loaded cover and holds it in place while pumping the trigger or lever as many times as necessary to discharge the proper amount of grease. fat. When this is done, the coupling is removed from the fixture, the cap snaps back into place, and no further attention is necessary.
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