Karcher K1800PS Cube 1.106-200.0 Operator's Manual
![Karcher K1800PS Cube 1.106-200.0 manual cover](/images/fc15956e936012aa6df44ee1/thumbs/thumb175x175.webp)
To assemble the Karcher K1800PS Cube, attach the handle and hose storage to the main unit using the included screws. Connect the high-pressure hose to both the spray gun and the machine, and finally attach the spray wand to the spray gun.
Use only Karcher-approved detergents that are specifically designed for pressure washers. Do not use bleach, chlorine-based cleaners, or any liquids containing solvents.
Check for blockages in the nozzle or hose, ensure the water supply is adequate, inspect the inlet filter for debris, and verify that all connections are secure. If the problem persists, consult the manual or contact Karcher support.
Regular maintenance should include cleaning the inlet filter before each use, checking hose and connections for wear, and inspecting the spray nozzle for blockages. Perform a more thorough inspection every 3 to 6 months depending on usage frequency.
To store your Karcher K1800PS Cube during winter, drain all water from the unit and hoses, clean the filter, and store the washer in a dry place where it will not freeze. Consider using a pump protector to prevent internal damage.
To clean the nozzle, turn off the pressure washer and detach the spray wand. Use the nozzle cleaning tool or a thin piece of wire to remove any debris or blockages. Rinse with water before reattaching.
The Karcher K1800PS Cube is designed for use with cold or lukewarm water only. Using hot water can damage the pump and other components of the pressure washer.
Ensure the unit is plugged into a working outlet. Check the extension cord for damage, and make sure the power switch is in the 'on' position. If the GFCI plug has tripped, reset it. If the issue persists, contact Karcher support.
To replace the O-rings, turn off and disconnect the pressure washer. Remove the old O-rings from the connectors using a small flathead screwdriver. Install new Karcher O-rings by pressing them into the grooves.
The recommended water flow rate for the Karcher K1800PS Cube is 1.2 gallons per minute (GPM) at a pressure of 1800 PSI. Ensure your water supply meets these specifications for optimal performance.