Operation
24
•
It mixes the cleaning chemical into a low-pressure spray. Cleaning chemicals applied under 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, and if
used would obviously alter the 15 to 1 dilution ratio.
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) chemical
cleaning solution as required for
the job.
(Note: the chemical solution will
be automatically mixed with the
water at a ratio of 15 parts water
to 1 part chemical solution.)
2.
Press the braided chemical hose
over the chemical injector not on
pump.
3.
Submerge the suction strainer
connected to the braided
chemical hose into a bucket
containing the chemical solution.
STEP 3. SPRAYING
Safety rules for
operation
Before starting the pressure washer, review the following general safety rules for
operation:
Conditions for Use
Know how to stop.
Be thoroughly familiar with proper use of the equipment and all
controls and connections. Know how to stop the pressure washer and depressurize
system quickly if needed (see “Step
4
. Stopping”).
DILUTED
CHEMICAL
STRAINER
HIGH
PRESSURE
OUTLET
CHEMICAL
INJECTOR
Fig157117-8