SK90
Maintenance
The screen inside the quick
connector filter should be
cleaned periodically. Insert a pen
or pencil in small hole at the end
of the adapter. The screen filter
will slide out. Rinse it with clean
water, and then place it back in
the adapter.
General Cleaning
Avoid Damaging Surfaces
Damage to surfaces occurs because the impact force of the water exceeds the durability of the surface.
Never use a narrow high impact stream or a turbo / rotary nozzle on a surface that is susceptible to
damage.
The surest way to avoid damaging surfaces:
1. Place the spray nozzle approximately 4-5 feet from and 45 degrees to the cleaning surface.
2. Vary the spray pattern, spray angle and the distance to the cleaning surface until optimum cleaning
efficiency is achieved without damaging the surface.
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 embed in the surface,
thereby preventing the desired cleaning action.
The optimum angle for spraying water against a surface is 45 degrees.
6
times, and then lock the spray gun by pushing the lock button
from left to right.
• Using the nozzle tip cleaner provided (or an unfolded paper clip),
insert the wire into the nozzle hole and move back and forth until
debris is dislodged. Back flush water through the nozzle using a
garden hose.
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English
• A clogged or partially clogged
nozzle can cause significant
reduction of water pressure
coming out of the nozzle and/
or cause the unit to pulsate
while spraying.
• Turn the unit off.
• Turn off the water supply to
the unit.
• Relieve any pressure trapped
in the high pressure hose
by squeezing the trigger 2-3