Ushm Reducer Grease Makita
Surely you will not compare the word “angle grinder” with a citizen of sunny Bulgaria, but just remember the angle grinder, which forever secured this name. It is understandable, because this term came into our everyday life as far back as the 70s, when such an instrument was produced exclusively on the territory of Bulgaria.
Since then, angle grinder has not only not lost its significance, but, on the contrary, has become even more effective, safer and more enduring. Due to the huge functional capabilities and the ability to work with different types of material (metal, concrete, stone, brick, tile, etc.), it has become an integral part of any overhaul or construction.
However, given the high workload of the tool, in the process of use, inaccuracies can occur in its operation, which can lead to quite unforeseen and unpleasant consequences. Therefore, if you want the device to serve you for a long time to the maximum of its capabilities, it is necessary to approach its maintenance more than seriously.
Of course, the right decision would be to take the equipment to a service center, where it will be diagnosed and repaired by experienced specialists. But this option will be relevant if the warranty period has not yet expired, and if you are not limited in time. For the rest, you have to learn the device and make repairs yourself.
A lot of information is presented on the Internet (including), where the process of disassembling, cleaning and lubricating the main structural elements of an angle grinder is described in stages. For example, to get to the gearbox, it is not necessary to completely disassemble, just unscrew a few screws. And even though this process is relatively uncomplicated, it requires strict adherence to instructions, as well as accuracy, accuracy and care.
Before you start dismantling the tool, you need to study its internal components in detail.
The angle grinder consists of:
The main body is made of shockproof plastic. Side grip for convenient equipment retention during operation. Start buttons. Spindle lock buttons for quick disc replacement. An electric motor, which includes a rotor and a stator. Reliable gearbox. Speed adjustment wheels (not for all models). Super-Joint-System (not for all models). Nuts for fixing the working element. Wide protective cover. Power cable or battery pack.
Gearbox disassembly angle grinder
The angle grinder reducer is responsible for transmitting rotational motion from the rotor of the electric motor to the working element. With the optimal speed of rotation and the correct selection of the diameter of the circle, you get a tool tuned for the most productive and efficient work.
The design of the gearbox consists of a bearing, a large and driven gear. As for the case, in most cases it is made of high-quality aluminum alloy, on the basis of which there are several threaded connections for fixing the side handle.
To remove the gear mechanism, only one Phillips screwdriver will be enough.
The first thing to do. Remove the working disk and the protective cover from the spindle. Then unscrew the bolts that secure the housing to the angle grinder and gear mechanism. As a rule, it is held on the case by means of four screws. Get the gearbox and evaluate its internal condition.
How to determine that a lubricant change is required in the angle grinder?
Check teeth and gears for damage or wear. If you notice excess grease, which, under the influence of centrifugal force, has completely settled on the walls of the housing, then with its normal quality, you can reapply it in a thick layer on the gear teeth. If the oil is out of date, then it should be completely replaced. To do this, rinse the gearbox thoroughly with kerosene or another volatile solvent.
It is also worth considering the fact that in the process of intensive work, the lubricant may overheat, which will lead to its increased evaporation and, therefore, deterioration of the equipment. For example, if you notice increased noise emanating from the device, then there is probably not enough oil in the gearbox and it is necessary to perform additional lubrication.
How much grease to use
The amount of lubricant can be easily determined by eye. It should be slightly less than half of the total volume of the gearbox. After you squeeze out the necessary part of the composition, smear it on all the rubbing surfaces of the parts.
Which lubricant is best to use
According to experts, it is best to use lubricant of the same brand as the tool. For example, if you use Makita TM equipment in your work, then the lubricant must be from this manufacturer, since its production takes into account the characteristics of its equipment. Thus, you can protect the device from premature failure, maximizing its service life.
However, there is a significant minus in this. The price of branded compounds is quite high, which is why many people refrain from buying, preferring cheaper materials.
In addition, a large number of craftsmen use inexpensive Chinese equipment in their work, for which lubrication is not provided. However, it, like all electrical equipment, requires periodic maintenance.
What we would strongly recommend against using is lithol or solidol. Since they are not designed to work in conditions of strong friction and high temperatures. The use of such materials leads to premature wear of the equipment and, consequently, to its breakdown.
How often to lubricate
If the use of the tool occurs in intensive mode, then its prophylaxis is recommended to be done every year. Since the gearbox is a rather complex mechanism that has to withstand regular heavy loads, dust can form in its internal component. With timely and proper lubrication, you will provide your device with guaranteed stable operation and a long service life.