Karcher HD 9/100 De Skid Operating instructions - Page 13

instructions. Unsuitable electrical extension cables can be dangerous. Only use approved and appropriately marked electrical extension cables with a sufficient cable cross section for outdoors. Only replace couplings on the power supply or extension cable using those with the same water density and the same mechanical strength. ṇ CAUTION In case of longer breaks in operation and after use, switch off the device at the main switch / device switch and pull the mains plug. ATTENTION Switch-on procedures will generate short-term voltage drops. Unfavourable mains conditions may cause other devices to be impaired.  In case of a network impedance of less than 0.15 ohms, no malfunctions are to be expected. Water connection ṇ WARNING The screw connections of all connection hoses must be leak-tight. Do not exceed the maximum permissible water supply temperature.  Route the hose lines in a safe manner. ATTENTION Use only hose lines rated for the operating pressure, mechanical loads and chemical loads present. Do not bend the hose lines beyond the minimum permissible bending radius. Replace the hose lines at appropriate intervals, even when no defects are visible. Hose lines have a limited service life. Observe the regulations at your water distribution company. High-pressure connection ƽ DANGER Use hose sleeves, protective covers or shields to eliminate hazards presented by the hose lines. ṇ WARNING The device must not be started up if the highpressure hose is damaged. Replace a damaged high-pressure hose at once. Only those hoses and connections recommended by the manufacturer may be used. For order no. see operating instructions. Do not subject the hose lines to mechanical, chemical or thermal loads. The screw connections of all highpressure hoses must be leaktight. Tighten the screw connections to a maximum tightening torque of 20 Nm. Use a hose catching fixture. Use only high-pressure hoses and accessories having a rated operating pressure of at least the same as the device. Check the highpressure hoses daily. Do not use kinked high-pressure hoses. Do not use high-pressure hoses having a visible outer wire mesh. Do not use high-pres- English 13