Low Pressure Operation With Brush - Kärcher K7.85M Manual

We recommend the following cleaning method:
Step 1:
Remove loose dirt by washing over the surface to be cleaned
with the high pressure jet.
Step 2:
Spray on the detergent and leave for 1-4 minutes, so assisting
the easy removal of fine dirt and associated greasy adhesions.
Step 3:
Finally, spray off the loosened dirt with the high pressure spray.

4.3 Low Pressure Operation with Brush

When cleaning surfaces with a grease contamination - typically car
paintwork that always has a greasy traffic film covering adopt the
following procedure:
• Washing loose dirt away with the clean water high pressure spray.
• Apply the detergent in low pressure mode by setting the bayonet fit
spray lance (No.9) to its lowest (-) setting.
• Leave for 2-4 minutes for the detergent to have maximum effect.
• Remove the bayonet fit spray lance and fit the Wash Brush
(No.10) to the Spray Gun (No.12). The Wash Brush is suitable
for use with a water inlet temperature into the Pressure Washer of
maximum 40 °C.
• With or without the pressure washer switched on, brush down the surface
being cleaned, this physical agitation removes all trace of traffic film.
• Finally revert to the high pressure operation with the Spray Lance
and complete the wash down.
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