Generac Portable Products 2,500 PSI High Pressure Washer
1010
Cleaning and Applying Chemical
WARNING! You must attach all hoses before
you start the engine. Starting the engine without all
the hoses connected and without the water turned
ON will damage the pump.
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could damage
the pump.
To apply detergent follow these steps:
• Review the use of the nozzles.
• Prepare the detergent solution as required by the
manufacturer.
• Place the small filter of the chemical injection tube tube
into the detergent container.
CAUTION! Keep the chemical injection tube
from coming in contact with the hot muffler.
• Make sure the black nozzle is installed.
NOTE: Detergent cannot be applied with the high
pressure nozzles (White, Green, Yellow, or Red).
• Make sure the garden hose is connected to the water
inlet. Check that the high pressure hose is connected to
the spray gun and the pump and start the engine.
• Apply the detergent to a dry surface, starting at lower
portion of area to be washed and work upward, using
long, even, overlapping strokes. Do Not allow the
detergent to dry on. This will prevent streaking.
• Allow the detergent to soak in between 3–5 minutes
before washing and rinsing. Reapply as needed to prevent
surface from drying.
Pressure Washer Rinsing
WARNING! Be extremely careful if you must use
the pressure washer from a ladder, scaffolding or
any other relatively unstable location. Hose water
pressure builds as you climb. When you press the
trigger, the recoil from the initial spray can be very
strong. The high pressure spray could cause you to
fall if you are too close to the cleaning surface.
After you have applied detergent, scour the surface
and rinse it clean as follows:
• Apply safety latch to spray gun.
• Remove the black chemical nozzle from the nozzle
extension.
• Select and install the desired high pressure nozzle
following the instructions “How to Use the Nozzles” on
page 9.
• Keep the spray gun a safe distance from the area you
plan to spray.
• Increase or decrease spray pressure by turning the
pressure control knob counterclockwise or clockwise
respectively (Figure 12). Use lower pressure to wash
items such a as a car or boat. Use higher pressure to
strip paint and degrease driveways.
• Apply a high pressure spray to a small area and then
check the surface for damage. If no damage is found, you
can assume it is okay to continue cleaning.
• Start at the top of the area to be rinsed, working down
with same overlapping strokes as you used for cleaning.
Automatic Cool Down System
(also known as Thermal Relief)
If you run the engine on your pressure washer for
3–5 minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach a temperature
between 140–145°F. When the water reaches this
temperature, the automatic cool down system engages and
cools the pump by discharging the warm water onto
the base and ground. This system prevents internal
damage to the pump.
Figure 12 — Pressure Control Knob
Pressure Control
Knob
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