System Operation, Operating Controls | Karcher HD 4000 C, HD 6000 C

B. System Operation

HD 4000 C / HD 6000 C

1		Emergency-STOP master switch	Switches the system ON and OFF; also serves as
		Q1	Emergency-STOP switch.
2		Unlock button with operational	starts the availability time of the pump by the press of the
		indicator light	button serves for resetting after malfunctions
			is alight when the pump is running and during the
			availability time
3		Pressure gauge	Indicates the pressure downstream of the pump; also
			serves as function control.
4		Indicator lamp – Motor Fault	Illuminates when the motor protection switch has tripped,
			switching off the motor (motor fault).
5		Indicator lamp – General Fault	is illuminated for:
			– motor malfunction
			– drop in system pressure (at high-pressure outlet)
			– water temperature too high
			– motor temperature or oil temperature too high-
			insufficient water
			– admission pressure of hot-water pump too low.
6		Elapsed-hour meter	Counts the total pump operating hours.
7		Warning Label	Danger!
			Danger of Death by electrical shock!
			Control cabinet may be opened by trained personnel only
8		Control cabinet closure	Used for opening the control cabinet
			May be opened by trained personnel only
9	1 2 3 4	Fault indication on the printed	indicates following malfunctions:
		circuit board	1 insufficient water, water temperature too high
			2 motor or oil temperature too high
			3 admission pressure of hot-water pump too low
			4 drop in pressure at high-pressure outlet

B1	5.956-648 A10369 (06/98)