Prime The Water Supply - NorthStar 1571107 Owner's Manual

3. Release the collar, making sure it springs back and
re-seats to its original (non-retracted) position.
Check the connection by pulling on the hose to
ensure a positive connection.
Correct Insertion
Collar Seated
Select Nozzle for Spray Gun
Your pressure washer is equipped with high-pressure
nozzles and one low-pressure nozzle. Additional
nozzles can be purchased by following the Nozzle
Orifice size in the specification. Generally, the wider the
spray angle of the nozzle, the lower the spray impact
produced. Select the appropriate nozzle for the job
based on the following table:
Color of Nozzle:
Yellow
Green
White
Black (Low Pressure)
NOTE: You must use the low-pressure black nozzle for
spraying chemicals.
Attach Nozzle to Spray Gun
Depressurize First
Any time you remove/install/change a nozzle, you
must depressurize hose line by squeezing the spray
gun trigger while the motor is off. Even if the motor
has been off for a long period of time, the hose may
remain dangerously pressurized.
Not Fully Inserted
Collar NOT Seated
Spray Used For
Angle
15 Tough Stains/Stripping
25 General
40 Light Cleaning
65 Chemicals
WARNING
Operation
1. Make sure the motor is off and the hose line is
depressurized.
2. To install the nozzle, pull the collar back and twist
the nozzle firmly into the coupler on the end of the
wand.
3. Release the collar, making sure it springs back and
re-seats to its original (non-retracted) position.
Check the connection by pulling on the nozzle to
ensure a tight connection -- if correctly inserted,
nozzle will rotate but not pull out.

Prime the Water Supply

Turn On Water Supply and Squeeze the
Trigger
CAUTION: Water Pressure
Never run the pump without the water supply
connected and turned on. Operating the pressure
washer without sufficient incoming flow of water will
damage the pump.
• Turn on the water supply. Make sure the water
supply is steady and flowing at a rate 20% over the
rated flow of your pump. (Reference the flow rate
table under the "Connect Hoses, Water Supply, and
Nozzle" section.)
Purge air from the water supply hose by squeezing
the trigger until a steady stream of water flows out of
the nozzle at low pressure. (Air in the hoses can
cause damage to the pump, so always make sure all
the air is out of the hoses before starting the
pressure washer motor.)
• Make sure the water supply hose is not kinked. A
kinked hose will provide insufficient water supply to
the pump and reduce its life. Make sure the hose
remains unkinked after moving the pressure washer.
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