Craftsman 580.768331 Operator's Manual page 8

To change nozzles:
• Engage the safety latch on the spray gun.
• Pull back the collar on the quick-connect and pull
the current nozzle off. Store the nozzle in the
space provided on the control panel.
NOTE: For a more gentle rinse, select white 40 °
nozzle. To scour the surface, select yellow 15° or red
0 ° nozzle. To apply chemical, select black low
pressure nozzle.
• Pull back on the collar, insert the new nozzle and
release the collar. Pull on the nozzle to make sure
it is securely in place.
• For most effective cleaning, keep the spray nozzle
between 8 to 24 inches away from the cleaning
surface. If you get the spray nozzle too close, you
may damage the cleaning surface.
Cleaning and Applying Chemical
_ ARNING! 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.
• Hang the detergent solution container on the hook
at the rear of the pressure washer.
• Place the small filter of the chemical injection tube
into the detergent container.
_ AUTION! Keep the chemical injection tube
from coming in contact with the hot muffler. This
will damage the chemical injection tube. When
inserting the filter into a chemical bottle, route
the tube so as to keep it from inadvertently
contacting the hot muffler.
• Make sure the black nozzle is installed on the
nozzle extension.
NOTE: Detergent cannot be applied with the high
pressure nozzles (White, Yellow, or Red).
• Make sure the garden hose is connected to the
water inlet. Check that high pressure hose is
connected to spray gun and pump, then start
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. Allowing
detergent to dry on surface may cause streaking.
• Allow the detergent to soak between 3-5 minutes
before washing and rinsing. Reapply as needed to
prevent surface from drying.
Pressure Washer Rinsing
_ ARNING! Be extremely careful if you must
use the pressure washer from a ladder,
scaffolding or any other relatively unstable
location. Pressure in a running washer builds as
you climb. When you press the trigger, the recoil
from the initial spray could force you to fall. The
high pressure spray could also force 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 7.
• Keep the spray gun a safe distance from the area
you plan to spray.
• Apply a high pressure spray to an 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 used for
cleaning.
• The use of a brush may be helpful on some hard to
clean surfaces.
Automatic Cool Down System (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 ground. This system prevents
internal damage to the pump. Once the pump has
cooled, it will stop discharging.
NOTE: This is not a leak. Do Not return the pressure
washer.