A grease gun (plastic-tipped) is the standard equipment found in a workshop and garage used mainly for lubricating various mechanical parts with grease. The main function of the grease gun is generally to apply grease to a particular point, usually via a grease tube to a grease fitting or nipple. The grease leads to an area where a discharge occurs, commonly referred to as a ‘feed mechanism’. The feed mechanism may be a plunger, cable, or dial; it may be a rotary bar or gear.
How does a grease gun work? The basic working model of a typical grease gun consists of a crank arm, which rotates a fixed drum (usually a grease pump), a ball check, and a guide rod. The ball check is typically made out of steel or cast iron. Its rigidity and thickness will determine the level of friction that exists between the grease and the bearing. The guide rod is attached to the crank arm and is manipulated to keep the ball check from oscillating as it extends between its two legs.
Grease can be pumped into many different applications through different methods. Some types of grease guns are manual pumps that require the operator to stand directly over the applicator, pumping the grease gun while keeping his hands away from the nozzle. Other types of grease guns have a cordless version that only requires the user to hold the arm at a certain angle and aim it in a specified direction. Cordless versions often have an automatic shut off feature that automatically shuts off the motor when the arm reaches a preset distance from the nozzle. Either type will work well in most applications.
There are some specific tools that every professional must own to safely and efficiently do their jobs. One tool that every professional should have is an industrial grease gun. Using these guns allow for much more control over the friction that occurs during heavy lube operations. If the operator knows how to properly operate them, they will cut down on problems that could arise. Grease can build up very quickly when there is insufficient lubrication in a bearing and this is why having a good grease gun that is able to perform under high load is so important.
A good grease gun should also have a cleaning system that removes oil and dirt from the barrel. After each use, it should be cleaned using air bleeder or a compressed air source. The air bleeder should be used to completely remove any residual lubricant and dirt from the barrel. This cleaning process will ensure that the device functions properly the next time it is used.
Many commercial machines use a high pressure output. High pressure output will force the fluid through the gun at a very fast speed. High pressure output is necessary because it allows the grease gun to work at its maximum efficiency. Because of the high pressure output, the motor will be under a great deal of heat and will eventually wear out. When this happens, the motor cannot properly cool off and will soon fail.
Commercial grease guns can come equipped with an ejector port or a trigger. An ejector port is often used when you are shooting very deep into a bore. By using the ejector port, it allows the grease gun to fire at a faster rate because there is no need to open the action. Trigger driven guns often use a spring that activates when a trigger is pressed. Trigger driven guns can cause accidents because of when the trigger is released. Grease guns that use an ejector port and trigger are much safer because the gun will not be able to move when there is excessive heat built up in the barrel.
There are several different types of plugs that can be used on a grease gun. The most commonly used plug is the open-ended kind. The open-ended plug is used in a commercial type gun that has a maximum pressure output of approximately four thousand pounds. These types of guns must be used in extremely cold environments. The other type of plug is the closed end variety. In a closed-end variety, a pressure switch is used that when activated will cause the gun to close the valve when the pressure reaches a certain level.