![background image](http://html1.mh-extra.com/html/karcher/b502-plus/b502-plus_instruction-manual_3969629011.webp)
11
• To rinse the detergent away, close the trigger, increase the nozzle
setting towards High Pressure setting. No detergent can be drawn
in with a high working pressure. Spray with the required jet spray
setting until no trace of detergent can be found.
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 Four–Way
Nozzle (No.14) to the Low Pressure Jet (
).
• Leave for 2-4 minutes for the detergent to have maximum effect.
• Remove the bayonet fit spray lance and fit the Wash Brush
(No.15) 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 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.