HD 8/18-4 St - Pressure washer KARCHER - Free user manual and instructions
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| Product type | Professional high-pressure cleaner |
| Brand | Kärcher |
| Model | HD 8/18-4 St |
| Operating pressure | 180 bar |
| Water flow rate | 8.3 l/min |
| Motor power | 4.0 kW |
| Motor type | Three-phase AC motor, 4-pole |
| Power supply | 400 V, 3 phases, 50 Hz |
| Dimensions (L × W × H) | 350 × 400 × 720 mm |
| Net weight | 47 kg |
| Detergent tank | Yes, with adjustable dosing |
| Main functions | Cold water high-pressure cleaning, pressure adjustment, automatic motor shut-off |
| High-pressure hose length | 15 m |
| Power cable length | 5 m |
| Included components | Gun, lance, rotary nozzle, flat jet nozzle |
| Maintenance | Cleaning the water inlet filter, regular checking of pump oil |
| Safety | Decompression valve, safety valve, motor switch |
| Spare parts and repairability | Availability of Kärcher spare parts, pump and motor separable |
| General information | Device designed for intensive use, ideal for outdoor surfaces |
Frequently Asked Questions - HD 8/18-4 St KARCHER
How do I start the HD 8/18-4 St high-pressure cleaner?
To start, open the water supply, set the motor switch to the 'ON' position, and press the trigger on the gun. The device starts automatically as soon as the trigger is pressed.
What maximum pressure can the HD 8/18-4 St reach?
The maximum operating pressure is 180 bar. You can adjust the pressure using the pressure regulator located on the device.
What is the water flow rate of this model?
The water flow rate is 8.3 liters per minute, which allows quick and efficient cleaning of large areas.
What type of electrical supply is required?
This device requires a three-phase 400 V power supply with a frequency of 50 Hz. It is not suitable for a standard 230 V domestic outlet.
How do I maintain the pump of the HD 8/18-4 St?
It is recommended to check the pump oil level every 500 hours or once a year. Only use oil recommended by Kärcher and replace it according to the instructions in the manual.
Can detergents be used with this device?
Yes, the HD 8/18-4 St has an integrated detergent tank. You can dose the product via the adjustable valve for enhanced cleaning.
Which nozzles are included in the delivery?
The kit includes a gun, a lance, a rotary nozzle, and a flat jet nozzle. The rotary nozzle offers high cleaning power for stubborn dirt.
How can I avoid damage in case of excess pressure?
The device is equipped with a safety valve and a pressure relief system. Never lock the trigger of the gun continuously without having activated the safety.
Where can I find spare parts for this model?
Spare parts are available from authorized Kärcher dealers. Also check the brand's after-sales service for original components.
What is the warranty for the KÄRCHER HD 8/18-4 St?
In general, professional Kärcher high-pressure cleaners come with a 2-year warranty for professional use. Keep the invoice for any claim.
User questions about HD 8/18-4 St KARCHER
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USER MANUAL HD 8/18-4 St KARCHER
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Product information
Brand : KARCHER
Model : HD 8/18-4 St
Category : Pressure washer