Karcher K 3.99M User Manual
Page 7
English
7
"
STEP 1: Plug the Ground Fault Cir-
cuit Interrupter (GFCI) into a working 
outlet.
"
STEP 2: Press ’’TEST’’, then press 
’’RESET’’ to assure proper connec-
tion to power.
Note: The actual appearance of the 
GFCI may be different from this illu-
stration.
ƽ
WARNING
To avoid serious injury never point 
spray nozzle at yourself, other per-
sons or animals.
!
The Vario Power Spray Wand allows 
you to adjust the cleaning pressure. 
To clean at maximum pressure, the 
wand must be positioned to the high 
pressure setting (Max).
For lower pressure turn the wand 
collar in the minus (Min) direction.
To apply detergent, the wand must 
be positioned to the lower pressure 
setting (Min).
!
This nozzle features a 0º pencil jet 
which rotates 360º for maximum dirt 
cutting action, effectively increasing 
cleaning performance up to 50%. 
This nozzle combines the cleaning 
performance of a 0º pencil jet with 
the surface coverage of a wide angle 
nozzle. 
Not recommended for soft materi-
als, siding, painted surfaces, 
decks or autos.
!
Always test an inconspicuous area 
before cleaning with the Dirtblaster
GFCI INSTRUCTIONS
1 2
USING THE ACCESSORIES
Vario Power Spray Wand
Dirtblaster®