Karcher K 7.85 M - Manual (Page 13)

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4.1 High Pressure Operation
• Switch on the pressure washer (No.4)
• Ensure the Spray Lance with the Pressure Regulator (No.9) is attached
securely to the Spray Gun (No.12) and the nozzle is set to the required
high pressure setting ("Min" – "Max").
• Aim the lance towards the object to be cleaned making sure the
recommended working distance is used (for reference see Page 10).
Release the Safety Lock Device (No.11) on the Spray Gun and
squeeze the lever.
The pressurised water jet alone is capable of fulfiling most
cleaning tasks around the garden or on building work but
detergent and wash brush are advantageous when cleaning
vehicles or other paint finishes.
4.2 Low Pressure Operation without Brush
• Fill the Detergent Tanks (No.2a, No.2b) with the selected detergent,
ensuring it is the correct concentration (See Page 11 or read
recommended dosage on label)
or
Dilute the detergent to the required concentration before filling the
Detergent Tank. (The correct dilution is dependent on the degree of
soiling of surface and is best determined by experience).
• Set the nozzle to the low pressure setting („Mix“).
• Adjusting the detergent dosing valve to the desired dosage.
- Turn to the left: Meter detergent from container 1.
- Turn to the right: Meter detergent from container 2.
• Switch on the pressure washer (No.4)
• Aim the nozzle towards the object to be cleaned, release the Safety
Locking Device on the Spray Gun and squeeze the lever to apply the
detergent to the working area.
• To rinse the detergent away increase the nozzle setting towards “Max”
setting. (No detergent will be drawn in with high working pressure). Spray
with the required jet spray setting until no trace of detergent can be found.