10
Angle to the cleaning surface
When spraying water against a
surface, maximum impact is
generated when the water strikes
the surface “head on.”
However, this type of impact tends
to cause dirt particles to imbed in
the surface, thereby preventing the
desired cleaning action.
The optimum angle for spraying
water
against a cleaning surface is
45 degrees.
Spraying water against a surface at
this angle provides for the most
beneficial impact force combined
with efficient removal of debris
from the surface.
Distance from cleanling surface
Another factor that determines the impact force of the water is the distance from the
spray nozzle to the cleaning surface. The impact force of the water is increased 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.
The impact force can be varied by controlling the three previously noted items. Never use a
narrow high impact stream or a turbo/rotary nozzle on a surface that is susceptible to
damage. Avoid spraying windows with a narrow high impact stream or turbo nozzle as this
may cause breakage.
The surest way to avoid damaging surfaces is to follow these steps:
1. Before triggering the gun, adjust the nozzle to a wide fan pattern.
2. Place the nozzle approximately 4-5 feet (1,2-1,5m) from and 45 degrees to the cleaning
surface, and trigger the gun.
3. Vary the fan pattern spray angle and the
distance to the cleaning surface until optimum
cleaning efficiency is achieved without damaging the surface.
Figure 6
–
Optimum angle to cleaning surface
Содержание AGM AHW 9020
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