North Star M157594I - Manual (Page 29)

Operation
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low pressure adhere better to the surface being cleaned, allowing the formula time to react
and remove dirt more effectively.
Note: An external chemical injector pump is not recommended for use with this pressure washer.
WARNING: Chemical spraying

Never spray acids, corrosives, or abrasive or flammable liquids. Breathing hazards, surface
burns/corrosion, or fire/explosion could result.

Follow the chemical manufacturer's label instructions for proper use and handling of the
chemical. Understand all safety hazards and first aid for all chemicals being used. Always
wear protective gloves when handling and cleaning with chemicals, and wear other
protective gear as directed by chemical manufacturer. Always dispose of hazardous fluids
per local, state, and national guidelines.
Acquire cleaning chemical Use only NorthStar pressure washer chemicals or chemicals
specifically formulated for use with pressure washers.
CAUTION: Non-approved chemicals can damage pressure washer
components (seals, wand, hoses, pump, etc.) and be harmful to
the environment.
Prepare for chemical
spray (if planning to use) Prepare the pressure washer for chemical spraying using the
following steps:
1. Prepare (dilute) the chemical cleaning solution as required for
the job.
(Note: The chemical injector is adjustable and will mix the
chemical solution into the spray up to a maximum ratio of 1 part
chemical solution to 13 parts water.)
2. Disconnect the high pressure hose from the water outlet.
3. Snap the quick couple chemical injector onto the water outlet,
then snap the high pressure hose onto the chemical injector. See
Figure 10.
Figure 10
Strainer
Chemical Injector
High Pressure Hose
Water Outlet
Diluted
Chemical
Adjustment Knob