The Karcher company is known worldwide as a responsible manufacturer of high-quality domestic and commercial equipment. Pressure washers are used by various categories of users. This is an upscale, world famous equipment. Karcher was one of the first companies to produce portable units that allowed the principle of high-pressure cleaning to be applied for domestic purposes.
To perform maintenance of commercial equipment, the owners turn to special service centers. For household models of units in some cases it is easier to perform basic preventive procedures on their own. What kind of oil to fill in "Karcher" should be found out before carrying out this process.
Hardware Features
Knowing the features of the equipment presented, it is possible to understand what kind of oil to pour into Karcher's minimoins. This German brand has been operating since 1938. The main specialization of the concern is the manufacture of washing equipment using high pressure. This equipment is in the premium category.
Contactless models of units allow you to save energy and water. A special control system is used for this. Pressure is regulated smoothly, without jerking. A large selection of optional accessories allows you to apply various cleaning methods. The end result of surface treatment remains consistently high.
The system includes overload protection. During the cleaning process, various detergents can be added to the liquid. The presented equipment can be connected directly to the water supply or pump water from a prepared tank. Cleaning can be subtle and coarse. For this, a system of special filters is used.
Lubrication Features
Lubricants in the system are necessary to ensure reliable protection of engine mechanisms during equipment operation. When deciding which oil to pour into the Karcher wash , several nuances must be taken into account.
The heart of the device is its engine. On sale are models with an electric and fuel type of motor (diesel, gasoline). The choice of engine category also determines the choice of lubricants. Clear instructions on this issue are given by the manufacturer of the equipment. The instructions must indicate exactly what type of grease is suitable for the existing motor.
If the sink will be operated exclusively at home, you can purchase electric models. This is the most common type of aggregate. If you want to clean away from the point of connection to the household power supply, you should purchase equipment using gasoline or diesel fuel. Fuel periodically have to be added to the engine.
Grease selection
There are domestic and commercial varieties of equipment presented. Depending on the operating conditions, it is necessary to decide on the type of oil in the system.
Popular household models are K series sinks. They have an electric type of engine. When deciding which oil to pour into Karcher K 7 , K 5, K 4 and other similar models, the manufacturer's recommendations must be taken into account. Grease is used for these types of vehicles. It qualitatively protects mechanisms from wear, friction and destruction.
For professional series HD, HDS engine and gear oils are used. Such products are made on a mineral basis. Synthetic and semi-synthetic lubricants are on sale. For equipment "Karcher" they do not fit.
Motor oils can be used in some cases in combination with grease in a 1: 1 ratio. When choosing, it is necessary to study the manufacturer's instructions.
Grease
Grease lubricants are used in electric motors and high pressure generators . They may vary in composition. Most often, such products are made on the basis of lithium soap.
When deciding which oil is poured into the Karcher car wash, it is necessary to consider the basic characteristics of the lubricant. It should provide reliable protection of rubbing pairs from mechanical wear. In this case, the engine will work long and efficiently. Its power will be high, and the speed stable.
High-quality greases prevent corrosion, do not oxidize and can be used in the system for a long time. They absorb pressure, can be operated under various environmental conditions. When using high-quality grease, there is no doubt in the durability of the motor.
Transmission oil
The oil used in professional equipment can be replaced with transmission consumables during maintenance. Such greases are used in the gearbox of cars. Studying the question of what kind of oil can be added to the Karcher professional series on diesel fuel (for example, HDS 18/4), it is necessary to consider transmission oils as the best option.
The operation of the engine is associated with high mechanical and thermal loads. To reduce the adverse effects on mechanisms, oil with a certain viscosity class is used. Such a tool can be used both in winter and summer.
For diesel engines, transmission mineral oils of the GL-5 type, viscosity class 85w90, are used. They have a special composition that allows you to protect mechanisms even at high loads.
Engine oil
In many models of the equipment presented, it is recommended to use engine oil. It is poured neat or in combination with grease. When examining which oil to pour into Karcher 6/15, 6/13, K 7, K 2, K 3, K 4, engine oil should be considered as the best option.
The German manufacturer indicates that the product presented should be made exclusively on a mineral basis. It must comply with SAE 15w40 viscosity grade. This is a multigrade oil that is designed to work year-round. Ambient temperature should not fall below -15º or rise above +35 º.
The agent covers parts and mechanisms with a thin film. The mineral base is thicker than synthetics. It will prevent leakage of grease. Almost all manufacturers of motor oils present products with the specified characteristics in the modern market of consumables.
Grease mix
There are some models of equipment in which grease was used in the production. To fill the system with a substance with the original technical characteristics, it is necessary to mix engine oil with lithol. Special greases are available for sale. If their qualities are fully consistent with the original consumables, they can also be used in the engine system.
Studying what kind of oil is poured into the Karcher K5 series, some K4, K2 models, this option should be carefully considered. To create the right lubricant, you must purchase a motor oil of viscosity class 15w40. It is mixed in equal parts with lithol. These are the most common supplies.
Having prepared such a lubricant, it is necessary to correctly introduce it into the system. The quantity is indicated by the manufacturer in the instructions and depends on the characteristics of the model of technology.
Manufacturer's Reviews
When deciding which oil is best to be added to Karcher, attention must be paid to the choice of a lubricant manufacturer. The equipment presented is manufactured in Germany. Therefore, it is believed that the best option for the consumables presented will be German-made oils. However, for such purposes, any quality products from world and domestic brands are suitable.
The most popular in our country are foreign funds “Shell”, “Mobile”, “Motul”, “Castrol”. Among domestic lubricants, the products of Lukoil are the leaders.
Greases are produced by various companies. Quality products are produced under the brands Divinol, Thermoplex, etc.
The listed consumables are manufactured in accordance with existing international standards. They are of high quality and reliability.
Oil Change Preparation
Having decided what kind of oil to fill in Karcher, you need to prepare the system for a lubricant change. Most often, the maintenance of the system is carried out when the unit works out 400-500 hours.
Before filling, open the pressure pump housing. The compressor and motor should be inspected. They should not have traces of oil, water or corrosion. If they are present, clean the surfaces and change the seals.
The high-pressure pump is dismantled. To do this, unscrew 4 bolts on top of the assembly. After that, access to the plunger cylinders will open. They will also need to be dismantled. With the help of gasoline, the remains of old oil are washed off from them. The bearing and oblique washer are removed and cleaned.
Oil filling
After cleaning all removable elements and internal components of the system from the remnants of old grease, it is necessary to assess their condition. If necessary, defective parts are changed. The bearing and the oblique washer are reset.
A new consumable is being filled. Having decided which oil to pour into Karcher, you need to find out its optimal amount for the system. This indicator is negotiated by the manufacturer.
The oil should cover the oblique washer 2-3 mm. Further, all the components of the mechanism are assembled together. You can check the health of the system. During its operation, there should be no extraneous noise, knocking, burning smell, etc. If the motor is working stably, correctly, the equipment can be fully operated.
Having considered the features of lubricants for the units of the company "Karcher", you can correctly select and replace the oil yourself.