Campbell Hausfeld PW2120 Product Manual page 7

Operation (Continued)
ADJUSTING THE SPRAY FAN ANGLE
Your unit is either equipped with a
adjustable fan nozzle or quick connect
tips that have a range of spray fan
angles.
If equipped with the adjustable fan
nozzle, the spray end of the lance can
o
be rotated to have a 0 narrow high
o
impact stream to a 60 wide fan spray
(See Figure 14).
Nozzle
Figure 14 - Adjusting nozzle for fan
pattern
If equipped with the quick connect tips,
the tips can be switched out from a 0
narrow high impact stream to a 65
wide fan spray.
Quick connect tip
Pull back collar
Quick connect tip
Figure 15 - Installing Quick Connect Tip
The color of the tip shows what spray
angle it is:
o
Red – 0 – Maximum Duty
o
Yellow – 15 – Heavy Duty
o
Green – 25 – General Duty
o
White – 40 – Light Duty
o
Black – 65 – Low Pressure
Detergent
A narrow stream has high impact force
on the cleaning surface and results in
maximum deep cleaning in a concen-
trated area. However, this narrow high
impact spray can damage some sur-
faces, so use it cautiously.
A wide fan pattern will distribute the
impact of the water over a larger area
resulting in excellent cleaning action
with reduced risk of surface damage.
Clean large surface areas quickly using
a wide fan pattern.
Figure 16 - Narrow high impact stream
o
o
Figure 17 - Wide fan pattern
ANGLE TO THE CLEANING SURFACE
When spraying water against a surface,
you can generate maximum impact by
striking the surface head on. However,
this type of impact can cause dirt parti-
cles to embed in the surface and can
prevent the desired cleaning action.
The optimum angle for spraying water
against a cleaning surface is 45 degrees.
Spray water against a surface at a 45
degree angle to achieve the most benefi-
cial impact force and to efficiently
remove debris.
Figure 18 - Optimum angle to cleaning
surface
DISTANCE FROM CLEANING SURFACE
The distance between the spray nozzle
and the cleaning surface is another fac-
tor that affects the impact force of the
water. The impact force of the water
increases as the nozzle is moved closer to
the surface.
HOW TO AVOID DAMAGING SURFACES
Damage to cleaning surfaces occurs
because the impact force of the water
exceeds the durability of the surface. You
can vary the impact force by controlling
the nozzle's fan pattern, the nozzle's
angle to the cleaning surface, and the
nozzle's distance from the cleaning sur-
face. Never use a narrow high impact
stream or a Turbo/rotary nozzle on a sur-
face that is susceptible to damage. Avoid
spraying windows with a narrow high
impact stream or turbo nozzle. Doing so
may break the window. The most sure
way to avoid damaging surfaces is to fol-
low these steps:
1. Before triggering the gun, adjust the
2. Place the nozzle approximately 4-5
3. Vary the fan pattern spray angle and
7
nozzle or quick connect tip to a wide
fan pattern.
feet away from the cleaning surface.
Then hold the nozzle at a 45 degree
angle to the cleaning surface. Trigger
the gun.
the distance to the cleaning surface
until optimum cleaning efficiency is
achieved without damaging the sur-
face.
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