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OPERATION 3700 PSI Pressure Washer PowerBOSS™
5. Make sure garden hose is connected to water inlet.
Check that high pressure hose is connected to spray
gun and pump; start engine.
6. Apply 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
detergent to dry on (prevents streaking).
7. Allow detergent to soak in between 3–5 minutes
before washing and rinsing. Reapply as needed to
prevent surface from drying.
IMPORTANT:You must flush the injection system after each
use by placing the filter into a bucket of clean water, then run
the pressure washer in low pressure for 1-2 minutes.
Pressure Washer Rinsing
After you have applied detergent, scour the surface
and rinse it clean as follows:
1. Engage trigger lock on spray gun.
2. Remove black detergent spray tip from nozzle
extension.
3. Select and install desired high pressure spray tip
following the instructions in “How to Use Spray Tips”.
4. Keep spray gun a safe distance from the area you plan
to spray.
5. Increase (decrease) spray pressure by turning pressure
control knob clockwise (counterclockwise) (See
“Know Your Pressure Washer”). Use lower pressure to
wash items such as a car or boat. Use higher pressure
to strip paint and degrease driveways.
6. Apply high pressure spray to small area and then check
surface for damage. If no damage is found, you can
assume it is okay to continue cleaning.
7. Start at top of area to be rinsed, working down with
same overlapping strokes as used for cleaning.
Cleaning Detergent Siphoning Tube
If you used the detergent siphoning tube, you must flush it
with clean water before stopping the engine.
1. Place chemical injection siphon/filter in a bucket full of
clean water.
2. Engage trigger lock on spray gun.
3. Attach black cleaning detergent nozzle.
4. Flush for 1-2 minutes.
5. Shut off engine.
6. ALWAYS point gun in a safe direction and squeeze
spray gun trigger to release retained high water
pressure.
IMPORTANT: Spray gun traps high water pressure, even
when engine is stopped and water is disconnected.
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 temperatures
above 125°F.The system engages to cool the pump by
discharging the warm water onto the ground.
• Keep spray nozzle between 8 to 24 inches away from cleaning
surface.
• Operate this unit on a stable surface.
• Be extremely careful if you must use the pressure washer from
a ladder, scaffolding or any other relatively unstable location.
• Firmly grasp spray gun with both hands when using high
pressure spray to avoid injury when gun kicks back.
High pressure spray could cause you to fall if
you are too close to the cleaning surface.
WARNING