The lifespan of a hammer drill directly depends on proper care of the tool. And a key role in this is played by regular lubrication of its components and equipment with special compounds. The more often this procedure is carried out, the longer the instrument will last. After all, applying a special composition to working surfaces ensures the safety of parts and also reduces the load level. However, when purchasing, you need to know what kind of lubricant is needed for each specific hammer drill. Otherwise, the chosen product may not only be useless, but also cause a breakdown. You should also familiarize yourself with how to lubricate the hammer drill correctly.
The functionality of the hammer directly depends on the quality of the lubricant.
Rotary hammer working equipment
The instructions for the mechanism always contain an urgent requirement to lubricate the shank of the replacement tool. The drill absorbs high dynamic loads at the level of thousands of blows per minute.
During continuous operation, the operator should regularly coat the drill shank with lubricant - without this, the attachment will overheat and break. Caring for a rotary hammer is a painstaking task.
Boer
Correct application is carried out in the grooves into which the cartridge wedges fit. It is important to clean them of debris and sand, and then apply a small amount of lubricant to them. When removing a drill or bit, you should always renew the layer of lubricant - a fraction of a gram is enough.
Hammer chuck
Initially, this unit does not have its own protective coating. It is required to add 1-2 grams of lubricant before starting work.
Cartridge
Place of processing – seating surfaces for replaceable tools. This is where colossal friction and shock loads arise that can damage the cartridge. In addition to active protection, this also achieves passive protection: a layer of substance will cover the internal device from the penetration of dust and small particles.
Hammer gearbox
This mechanism is key in an electric tool (after the motor, the rotation of which it transmits to the working attachment). Operating conditions of the gearbox: constantly changing rotation speed and torque, strong friction and increased heating from it. To this should be added penetrating dust and small contaminants - the gearbox is under constant tension.
Hammer gearbox
Lubrication of the rotary hammer gearbox is carried out by applying a substance to the internal surfaces - especially after long-term operation. Bearings and shafts are protected in the same way. It is important to lubricate the rotary hammer gearbox during long-term operation.
What it is
Hammer drill lubricant is a viscous, oily, yellowish substance with a specific odor. Why is it needed? Its main function is to reduce the friction force that occurs during operation between the moving elements of the device.
During tool operation, the lubricant becomes saturated with wear products or mechanical dust, which reduces its viscosity. Therefore, the composition must be reapplied periodically.
A lack of lubrication in most cases leads to overheating of the device and subsequent breakdown. However, if an oily composition is applied excessively, the rotation speed of the drill decreases, and this negatively affects the overall performance.
Important! When choosing a lubricant, you need to take into account not only the features of its composition, but also the technical parameters of the device.
Lubricant for drills
High-quality models are sold with the volume of lubricant produced for processing drills. Its intended application is the mating surfaces of the shank. Moreover, the provided viscosity characteristics depend on the brand of the substance.
You should use exactly the brand recommended by the manufacturer. The reason is that the chemical composition is selected to match the construction materials and ensure their integrity during prolonged “hot” work.
It is optimal to purchase consumables of the same brands as the tool.
Design Features
Such power tools are barrel and straight, mechanical and pneumatic, and depending on the size - light, medium and heavy.
- core;
- Boer;
- striker;
- piston;
- cylinder;
- electromagnetic coil.
There are differences in details depending on the type of device. And that's not all the details on the list. So how does a hammer drill, which is useful in construction, work ? The units, in addition to the above parts, are equipped with:
In addition, such tools have a variety of indicators and speed controllers. Having understood the nuances of the construction of this construction tool, it’s time to move on to lubricating its individual elements.
READ How to put a protective cover on an angle grinder
Gearbox lubricant
Lubricating the gearbox of a newly purchased hammer drill is not required. The factory has already placed the calculated amount of oil inside, so its presence there is often missed. However, during operation it decomposes, becomes dirty and ceases to fulfill its role.
After some time, it is recommended to replace the oil with one that is designed for harsh operating conditions and high heat. Friction occurs inside the gearbox during rotation, characterized by frequent and sharp squeezing of fluid from the friction pairs. Therefore, specialized oils are used that can:
- protect metals from oxidation;
- capture and remove pollution;
- stick to surfaces to protect them;
- be water-repellent;
- do not be afraid of strong heat,
- as well as self-healing.
How to choose tool oil?
Experts advise purchasing lubricant from well-known manufacturers. They have proven themselves well in the market. The quality of such products is confirmed by years of conscientious operation of the equipment.
Lubricant for hammer drills Bosch, Makita, Hitachi, etc. are available with a wide variety of oils for equipment components. By conducting scientific research, such manufacturers are constantly improving the quality of their products. They fully comply with modern requirements.
Experts note that such products can improve the quality of work of even rather mediocre equipment. The viscosity class of the oil must be correctly determined. The quality of work performed by the equipment and its durability also depend on this.
Top 4 lubricants for rotary hammer drills
Lubricant for hammer drills is individually selected for the brand of the tool itself, but there are several universal formulations. They stand out from the crowd, but the application remains up to the decision of the hammer drill operator.
The following are good for construction and domestic conditions, therefore they are used quite widely.
Hammer lubricant: makita 196804 7
Origin: Japan.
Purpose: processing of the shank and the inside of the chuck.
Release form: soft tube, 95 g.
Pros:
- lack of decomposition and transformation into wax;
- operational reliability and high level of surface protection;
- Convenience of storage containers.
Minuses:
- decent price;
- the chemical composition is a secret of the manufacturer.
Impression: smooth operation even after long hours of use.
Hammer lubricant: arsenal ar 401 100 g patriot
Origin: USA.
Purpose: processing of any replaceable drills used when rotating up to 4 thousand revolutions per minute.
Release form: flexible tube, 100 g.
Pros:
- retention of dusty contaminants – at a height;
- protection power – just right for intensive work with minimal consumption of tube contents;
- sufficient initial fluidity for fast and reliable processing of complex configurations;
- practical container that allows you to get a minimum amount of the composition.
Minuses:
- heated liquid has increased fluidity, which slightly reduces performance characteristics;
- the tube sometimes produces strong splashes, the price of which is lost composition and contaminated surfaces;
- There is no usual relief - it is problematic to open without removing gloves or with wet hands.
Impression: a decent lubricant at a not too high price, which lasts for a long time. How to use is intuitive.
Lubricant for rotary hammer: bison zsb 125
Origin: Russian Federation.
Purpose: replaceable tools with difficult working conditions (bit, chisel, drill), for cartridges of any configuration.
Release form: soft tube, 125 g.
Pros:
- enhanced chemical composition to withstand extreme loads;
- resistance to moisture and the formation of aqueous emulsion;
- reliable corrosion protection and high tribological properties;
- relatively low price;
- significant operating temperature range: from -50 to +130 degrees.
Minuses:
- relatively rapid acquisition of a liquid state;
- possible ejection from the rotating cartridge;
- does not rub off well from absorbent materials.
Impression: a semi-synthetic substance, packaged in a convenient tube, does its job efficiently, but you need to get used to its slightly lower viscosity.
Hammer lubricant: elitech 2006 000100
Origin: Russian Federation.
Purpose: to counteract friction and corrosion of replaceable tools and chucks.
Release form: tube, 60 g.
Pros:
- powerful operating temperature range: from -55 to +140 degrees;
- there is no scattering of individual drops;
- versatility of use - suitable for any type of tool and any working conditions.
Minuses:
- Possible strong darkening when working too hard and drying out when stored for too long;
- relatively small volume.
Impression: reliable material at an affordable price that will not turn into liquid oil.
High-quality domestic products
Today, the Russian and foreign markets are increasingly being conquered by oils for domestically produced power tools. Lubricant for rotary hammers “Interskol”, “Zubr” not only has a low cost, but also fully meets modern requirements. A wide range and constant laboratory control allow manufacturers to maintain a leading position.
Products are supplied both to neighboring countries and to Europe. These are high-quality, modern products. A wide range of models will allow you to select a lubricant that best meets the requirements of the equipment.
Top 3 lubricants for rotary hammer gearboxes
The most loaded parts of the gearbox are the gear teeth and bearings. For them, substances are manufactured with capabilities designed to resist water and high temperatures.
Hammer gearbox
Lubrication of the rotary hammer gearbox can be done well with one of the three products listed above. How to lubricate the gearbox is up to the operator to decide.
Hammer lubricant: makita p 08361
Origin: Russian Federation.
Purpose: high-power rotary hammers and jackhammers (with SDS-Max chuck).
Release form: tube, 30 g.
Pros:
- easy to use with viscous consistency;
- coloring indicates untreated areas;
- minimum storage space.
Minuses:
- the manufacturer hides the chemical composition, so it is difficult to replace with an analogue;
- will leak from models without an oil seal;
- small volume, which is enough for only a couple of uses;
Impression: reliable composition for models with a shock mechanism and high vibration.
Lubricant for rotary hammer: ultra 50 g vmpavto et 110005
Origin: Russian Federation.
Purpose: removal of contaminants and removal of heat in gearboxes with gear and hypoid transmissions.
Release form: transparent rectangular package, 50 g.
Pros:
- high wetting of metals;
- self-distribution in work;
- the consistency is equally viscous and liquid;
- low cost.
Minuses:
- ability to exit from any gap if the loading quantity is exceeded;
- practicality suffers from a strong odor;
- packaging may seem inconvenient;
- the amount of content is enough for a couple of refills.
Impression: the lubricant has high fluidity, which increases its functionality - penetration into far corners and between all teeth is carried out independently.
Hammer lubricant: ultra 200 g vmpavto
Origin: Russian Federation.
Purpose: transmissions with gear and planetary gears used at high speeds.
Release form: tube, 200 gr.
Pros:
- easy and quick distribution over the surface;
- additives to improve tribological properties;
- heat removal at high speeds;
- A decent volume is sufficient for long-term use.
Minuses:
- not the best results for rotary hammers with low operating speeds (less than 1500 rpm);
- relatively high price.
Impression: the dark-colored composition is convenient for the hammer drill gearbox and has high performance properties.
History of technology development
More than 150 years have passed since the hand-held hammer was first used back in 1851. It was manufactured for the needs of the mining industry and did not have the variety of modes that modern models now have. However, even then he significantly improved the work of workers. It is not without reason that this type of instrument has become widespread among craftsmen of various specializations.
Since that time, the instrument has undergone significant design changes. One thing has remained unchanged - the need for proper care. The device of the hammer drill is quite complex. Some of its parts may wear out quickly.
To prevent this from happening, the lubricant for the hammer drill must have a number of qualities. With the development of the presented power tool, its additional materials were also improved. To understand how to choose a lubricant, it is necessary to consider the design features of the equipment.
How else to lubricate the rotary hammer gearbox
How to lubricate in the absence of special equipment? Contrary to recommendations regarding specially developed mixtures, the use of solid oil or lithol is allowed for a short period of time. These proven materials are cheap and widely available, unlike hammer drill lubricant.
They allow for short-term protection of nodes in the absence of other means. The disadvantages of this solution are some braking of the mechanisms and low heat removal. What kind of lubricant is available in the field is a question, so using them is the best solution if you are empty-handed.
Cartridge
In addition to the drill, it is necessary to lubricate the cartridge. First, it is cleaned of old oil and dirt. Then, in the quantity specified by the manufacturer, it is applied to the surface. Replaceable drill bits need a similar procedure no less than the drill and drill bits.
Before each installation, the shank is processed accordingly. When studying which lubricant is more suitable for a hammer drill and its chuck, it is necessary to consider all offers from the manufacturer. If these are not available, preference should be given to trusted manufacturers.
They will reliably protect the cartridge from premature wear. The additives contained in the substance reliably absorb dirt, dust and prevent the destruction of working surfaces.
Acclimatization and temperature ranges
Problem. Like any other power tool, a hammer drill does not like working in cold conditions (for example, if it has been in an unheated room for a long time) and has difficulty withstanding critical overheating. In the first case, due to too thick a lubricant, wear on the moving parts increases. In the second, the lubricant becomes too fluid and does not perform its functions well, the gaps between the rubbing parts decrease, which can lead to increased friction and jamming.
Solution. Before starting work, do not rush to load the tool, let it warm up a little - for a minute at idle. During intensive use and in conditions of high temperature, take breaks to cool the hammer drill (for example, for household models, manufacturers always indicate in the passport the permissible time of continuous operation and the duration of mandatory breaks).
Long-term operation in chiselling mode
Problem. It is necessary to take into account that the pure impact mode is not a “native” for a hammer drill, but rather an auxiliary option. If you work for a long time with the rotation blocked, the tool cools worse (an important role here is played by the cooling impeller, which rotates more slowly during chiselling). In addition, in certain positions of the hammer drill, problems with lubricant distribution may occur.
Solution. To avoid these problems, it is recommended that every 10-15 minutes of work switch the tool to drilling mode and run it at idle speed for half a minute.
Important: there are ventilation holes on the tool body in the area of the impeller; they should not be dirty or blocked.
