Repair "Kercher" with their own hands. Repair of high-pressure hose, high-pressure car washes, mini-washings, foam nozzle, "Kercher" pump by one's own hands

With the regular use of high-pressure washers, high- quality maintenance is required at the service center. In order to save money, many users repair Kürcher with their own hands. It is not recommended to perform an independent cleaning and replacement of parts before the end of the warranty period, which will affect the refusal of further maintenance.

Service

Regular operation of the oil, seals and cuffs on the pump ( high-pressure pump ) is required to ensure trouble-free operation. In case of interruptions with water pressure or in case of improper storage / use of the device, it may be necessary to repair the "Kercher" with your own hands. What details fail?

• Pump, engine and pressure sensor.
• Electrical part.
• Nozzle, hose and gun.

The choice of household mini-mines eliminates the emergence of difficulties in care, but different models have their own characteristics that you need to check with the seller in advance. For example, a nozzle car wash with a plate structure will ensure high-quality operation with regular cleaning with a toothpick. Otherwise, the ingress of small particles will cause the unit to stop operating.

When purchasing the product, you should specify the availability of the nearest service centers and the warranty period. If you omit such questions, the breakdown of the device will lead to unnecessary problems. If it is decided to repair the "Kercher" with their own hands, the correct step is to study the instructions in detail.

Causes of breakage and recommendations for removal

According to the manufacturer and car wash workers, the main reasons for the breakdown of the device are low water quality and lack of maintenance. To increase the service life of the unit, it is necessary to comply with the basic requirements:

• Install a filter device for coarse and fine water cleaning at the entrance to the AED.
• Check the flow of the required volume of liquid according to the technical parameters of the device. For example, if the flow rate is 15 liters / min., And the water pipe allows you to get 13 liters, after 2 months, you may need to immediately repair the "Kercher" yourself (or in the service center).
• The diameter of the water pipe should be 3/4 inches per unit.
• Factory replacements and accessories are subject to replacement.

With regular preventive maintenance, it is possible to exclude the occurrence of unforeseen circumstances that entail the replacement of expensive parts.

Service ATS

Recommendations of specialists:

1. Check the condition and regular oil change in the pump plunger drive unit. According to the manufacturer, the first oil change should be made after 50 hours of using the machine, the subsequent service - after 350-550 hours. With average throughputs of the washing section, it is sufficient to conduct the treatment once every 3 months.
2. Monitoring the condition of the pump for a good flow of fluid, external application of oil, as well as minor repairs to the car wash "Kercher" with their own hands (changing filters, tightening bolts) will extend the life of the device.
3. For AED with heating, the boiler must be prevented - cleaning of the fuel filter (removal of scale on the internal walls of the heat exchanger and external plaque).

When is it necessary to repair the ATS?

Repair is required if there is a decrease in pump capacity and a reduction in operating pressure. This is caused by fluid leakage through the plunger seals. Worn gland wear is produced naturally or when exposed to abrasive elements. At high pressure, small scratches will affect the leakage of liquid.

The first signal about the occurrence of malfunctions is a small puddle formed at the site of the hose. To solve the problem, you can easily, but painstakingly repair the car wash "Kercher" with your own hands. It is enough to change the oil seals (seals). More difficulties will be caused by the installation of a new drive, housing components, sealing, etc.

The suction channel is formed by the housing elements, which arrange a flat filter between them. The efficiency of the device depends on its condition. The formation of defects in the contact of the surfaces of body parts leads to a reduction in the basic characteristics of the device. With a low suction power while working with a hose and nozzles, the repair of the Kerher high-pressure washer requires the preparation of a soft material for cleaning all surfaces and edges of the body parts. Damaged items must be replaced.

Additional aspects

If the device is equipped with the Total Stop system (disconnection of the pumping system in the absence of pressure on the trigger of the gun), the leakage will lead to involuntary activation - the automatic device perceives a pressure drop as a "start" command, the device rattles.

To decrease the productivity or turn off the AED, wear of the bypass or bypass valve, the rubber seal (ring) of the pressure sensor and the failure of the hose affect the performance. This is accompanied by a low level of gun pressure, a decrease in the density and detergent characteristics of the jet.

Descaling

If the device does not support the preset pressure level, the pump runs intermittently and the water supply is done in fragments, the repair of the Kerher high-pressure washer will not be particularly difficult. It is enough to unscrew the bolts with a screwdriver and remove the housing, get the motor with the pump and separate the engine from it. The pump must be directed upwards, otherwise oil leakage from the piston drive will occur.

The valves from the piston are removed (use of sharp objects is excluded, which can damage the surface), the pump is dismantled into 2 parts. Valves are removed again.

This is the reason for the failure of the device. This can be the formation of scale or clogging. All parts inside the pump are cleaned and wiped with felt. Then the structure is assembled in the reverse order.

Repair of the hose

The repair of the high-pressure hose "Kercher" with its own hands consists in crimping the damaged element at the ends or along the entire length. If the sleeve is torn off the flange, it is necessary to smoothly cut off the unsuitable part to the zone where there are no deformations. The necessary flange is selected and placed on the hose. The first one is to be inserted into the second one and pressed in a vice. Above are struck with a hammer.

If a cut along the length of the sleeve is formed, similar work is performed. The hose is cut and removed to the undamaged area. Insert a connector of the specified diameter and two clamps. They are put on the hose, the connector is inserted, tightly clamped with clamps. In the formation of cracks along the entire length of the sleeves, the repair of the high-pressure hose "Kercher" by its own hands is impossible. It requires a complete replacement of the product - it is better to instruct the masters of the service center.

Cleaning the foam nozzle tablet

If the foam nozzle stops giving out a thick foam, is used for a long time or is not washed with clean water after use, the grid in the form of a shaft is clogged with dried "chemistry".

To clean the foam tablet you need to perform a number of operations:

• Disconnect the tank from the main unit of the foam nozzle.
• The arrow indicates the location of the pin holding the plastic tip of the tablet on the brass element. The pin should be knocked out. If you decide to repair the foam nozzle "Kercher" with your own hands, you can use an awl or a thin screwdriver.
• After removing the plastic tip, you will see two petals forming the spray angle of the foam. The tip with them must be unscrewed.
• In the inner part of the withdrawn nozzle, there will be visible steel threads that take a round shape (in the form of a tablet). They should be removed by means of an awl. Cleaning the hardened "chemistry" in the nozzle is done with a needle.
• Assemble the product in the reverse order.

Correctly made repair of the nozzle "Kercher" with their own hands allows to extend the life of the device and reduce the cost of its maintenance.

Motor failure

What else affects the operation of the engine?

The lack of preventive inspection of the main elements of the device can cause a number of additional problems associated with engine failure.

If there are difficulties in identifying a breakdown, it will be right to turn to professionals. Many users mistakenly establish the cause of the failure and repair the "Kercher" pump with their own hands while gusting work. The real cause can be covered in a weak water pressure or low voltage.

Bearing Replacement

The need to replace the bearing can be caused by intermittent operation, the formation of noise from the inside and the overheating of the motor. The reason sometimes lies in the interturn faults or the failed bearing. In the first case, it is required to start the engine separately and check its operation. If no violations are found, further repairs to the "Kercher" sink by oneself are easy to make in several steps:

• Unscrew the hose with a gun, disassemble the body and get the engine with the cylinder head.
• Unscrew 6 screws and open the unit with a switch, disconnect the capacitor and 2 power terminals connected to the switch.
• The unit is placed on a stand in a perpendicular position (the motor is located below), 4 bolts are loosened by 13.
• After draining the oil, you can carefully review the clip with the balls.
• Unscrew the middle bolt with a screwdriver under the sprocket. To do this, the shaft is clamped from the reverse side with a gas wrench.
• The inner bearing, which protrudes in the form of a support for the inclined washer, is pressed on the valves.

Change of oil

The whole process of oil change is carried out in several stages:

1. A container is prepared for placing 1 liter of oil.
2. The receiving tray is being prepared.
3. The screw plug of the drain hole is twisted.
4. The oil can be drained into the collecting tank by the outlet tray.
5. The drain plug is tightened.
6. Oil is slowly poured into the MAX mark. Air bubbles will evaporate on their own.

The grade of oil and the volume of filling can be found from the technical characteristics of the device. The spent liquid is disposed of by an ecological method or is handed over to the collection point.

When determining the causes of malfunctions affecting the performance of the unit, special attention is paid to the acquisition of spare parts, because some of them cost at the price of the device itself.