Karcher HDS3.5 20 Operator's Manual

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Karcher HDS3.5 20 Specification

The Karcher HDS 3.5/20 is a high-performance hot water pressure washer designed for industrial and commercial cleaning applications. This model is engineered for efficiency and durability, featuring a robust design tailored to withstand intensive usage. It operates on a three-phase electrical connection, ensuring powerful performance suitable for heavy-duty tasks. The machine delivers a flow rate of 3.5 gallons per minute with a maximum pressure of 2000 PSI, making it ideal for removing stubborn dirt and grease.

Equipped with a diesel-powered burner, the HDS 3.5/20 heats water efficiently, enhancing cleaning efficacy by dissolving grime more effectively than cold water. Its eco-efficiency mode optimizes fuel consumption and reduces emissions, aligning with environmental standards while maintaining operational cost-effectiveness. The unit includes a water-cooled electric motor, which enhances longevity and reduces noise levels during operation.

User convenience is prioritized with features such as an intuitive control panel and easy-to-access service points for maintenance. The washer also includes a detergent metering system, allowing for precise cleaning agent usage, and an integrated storage compartment for accessories ensures that necessary tools are always within reach. Safety features include an automatic pressure relief system and a flame sensor to monitor burner operation.

The Karcher HDS 3.5/20's ergonomic design includes large wheels and a robust frame, facilitating mobility across various terrains. It is built with high-quality materials for durability and reliability, ensuring long-term performance even in challenging environments. This pressure washer is ideal for professionals seeking a powerful, efficient, and environmentally conscious cleaning solution.

Karcher HDS3.5 20 F.A.Q.

What is the recommended procedure for starting the Karcher HDS3.5/20?

To start the Karcher HDS3.5/20, ensure the machine is connected to a water supply and the fuel tank is filled. Turn the main switch to 'ON' and adjust the pressure and temperature settings as needed. Finally, pull the trigger on the spray gun to start operation.

How can I troubleshoot low water pressure in my Karcher HDS3.5/20?

Check for blockages in the nozzle or filter, ensure the water supply is adequate, and verify that hoses are not kinked. Also, inspect the pump for any signs of damage or wear.

What maintenance steps should be performed regularly on the Karcher HDS3.5/20?

Regular maintenance includes checking and cleaning the water filter, inspecting hoses and connections for leaks, changing the oil in the pump, and descaling the heating coil.

How do I descale the heating coil of the Karcher HDS3.5/20?

Mix a descaling solution as per the manufacturer's instructions and circulate it through the machine for the recommended duration. Rinse thoroughly with clean water afterward to remove any residue.

What should I do if the burner does not ignite on my Karcher HDS3.5/20?

Ensure there is fuel in the tank and that the fuel supply line is not blocked. Check the burner nozzle and electrodes for dirt or damage, and verify that the ignition system is functioning properly.

Can I use detergents with the Karcher HDS3.5/20 and how?

Yes, detergents can be used with the Karcher HDS3.5/20. Attach the detergent suction hose to the machine and place the other end in the detergent container. Adjust the detergent metering valve to control the amount of detergent being used.

What is the procedure to store the Karcher HDS3.5/20 for a long period?

Drain all water from the machine and hoses, disconnect the fuel supply, and clean all filters. Store the unit in a dry, frost-free environment to prevent damage.

How do I change the oil in the pump of the Karcher HDS3.5/20?

To change the pump oil, ensure the machine is off and cooled down. Remove the oil drain plug and allow the old oil to drain completely. Replace the drain plug and refill with new oil as specified in the manual.

Why is my Karcher HDS3.5/20 overheating, and how can I prevent it?

Overheating can be caused by blockages in the air vents or heat exchanger. Ensure these are clean and unobstructed. Also, check that the machine is not operating in a confined space without adequate ventilation.

How do I troubleshoot a Karcher HDS3.5/20 that won't turn on?

Check that the power supply is connected and functioning. Inspect the fuse and replace if necessary. Ensure the emergency stop button is not engaged and verify that all safety switches are in the correct position.