Graco 801645EN-A Owner's Manual

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CHEMICAL
INJECTOR
MODEL NO.
800-111
3245,3035
800-117
800-139
PRESSUREWASHERS,
TO BE USED WITH
22458,2245W. 2104G,2=
1535.1204G.1204E
For injecting harsh chemicals, such
as detergents and
cleansers, downstreamfrom the pressurewashers
listed above.
Lf$Jl&t?: pJ 0
11 Observe
chemical manufacturer's safety precautions regarding use ofgoggles,
protective
i
clothing or respirators.
I Read
and.observeall warnings and instructions
in the appropriate pressure washer instruction
manual.
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11
1.
I
INSTALLATION
Be sure the pump is shut off and fluid pressure in the
hose is relieved.
NOTE
Large orifice tip (23)rnusl be used for kit to
siphon chemicals properly.
Refer toparts
drawing for numbers in
parentheses in the text.
Connect injector (1) to the pump's fluid outlet with the
female quick coupler(16). See Figure 1. Connect hose
from spray gun to male quick coupler (17). Connect
coupler (22)andspray tip (23) to gun nozzle quick
coupler. Drop end of plastic tubing (19) with strainer
(21) into fluid product
container.
Cut tubing to
convenientlength,andslipopenendover
injector
fitting. Containermaybeanyreasonabledistance
below injector, but not more than 2 feet above.
OPERATION
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Start pressure washerunit and trigger spray gun.The
injector may draw momentarily as system is filling but
normally will stop as system builds up to fullpressure.
To actuateinjector, turn adjustmentknob (15) out,
counterclockwise, until chemical begins to be drawn
from the container.
Afterthechemical reaches injector,
flow rate may be adjusted by turning the adjustment
'knob. At two full turns from the closed position of the
adjustment knob, maximumchemical flow is obtained.
Do not exceed two turns.
The chemicals used must be compatible with system
components. The standard sprayhose is made of
Buna-N rubber, and the chemical injector is brass.
Cleaning
Check the distance you will need to hold spray nozzle
a scrapof similar
from surface bytestsprayingon
material. For soft surfaces, such as wood, hold noale.
about 3 h (1 r n ) from surfaceandgraduallybring
it
closer,check to see if the high pressurespray is
damaging the surface.
Mist-wet surface with cleaning solution. Let it soak
briefly, then use spray rinse to "chisel" off dirt. Keep
nozzle at an angle to surface,and at distance you
determined to be best for surface. If some
dirt remains.
repeat procedure,letting itsoaka little longer. Stubborn
dirt can be cleaned off better with a stronger, heated
cleaning solution.
When you have finished cleaning, shut off unit and
trigger spray gun to relieve pressure. Protect surfaces
that might be damaged by cleaning solution or high
pressure spray, and rinse solution, before it dries.