Water Quantities - HAKO Scrubmaster B 120 R Service Booklet

8. Water pump

8.1 Water quantities

Measurement of the water quantities offers a good and reliable method to test correct
functioning of the water pump. Let the pump run and measure the water quantity
conveyed per minute. The water quantity for the plate brush units can be set from
approx. 1.0 l to approx. 5.2 l. The setting range for the cylindrical brush units is from
approx.1.5 l to approx. 3.1 l.
If the pump is supplied with voltage but the water quantity does not correspond to the
specifications, check whether hoses are clogged or bent, whether the solenoid valve
opens fully and the diaphragms of the valve plate in the pump are in proper working
order. The solenoid valve is connected at A01.X11:3 + 10.
Sheet 67