8
PRE-OPERATION
Adjusting fan pattern
The angle of spray coming out of the lance may be adjusted on some lances by rotating
the nozzle. This will vary the spray pattern from approximately a 0° narrow high impact
stream to a 60° wide fan spray (See Figure2).
A narrow stream has high impact force on the cleaning surface and results in maximum
deep cleaning in a concentrated area. However, this narrow high impact spray must be
used cautiously, as it may
damage some surfaces.
A wide fan pattern will distribute the impact of the water over a larger area, resulting in
excellent cleaning action with a reduced risk of surface damage. Large surface areas can
be cleaned more quickly using a wide
fan pattern.
Nozzle
Figure 2
–
Adjusting nozzle for fan pattern
(not applicable on some nozzle)
Figure 3
–
Narrow high impact stream
Figure 4
–
Wide fan pattern