Graco Inc. Hydra-Clean 800-654 - Manual (Page 8)

8 308-537
Chemical Injector
BE SURE that all chemicals used in the chemical
injector are compatible with the wetted parts of the hose,
gun, wand and tip, as given in the Technical Data (inside
back cover). Always read the chemical manufacturer’s
literature before using any chemical in this pressure
washer.
WARNING
Observe chemical manufacturer ’s safety
precautions regarding use of goggles, protective
clothing or respirators.
1026 & 1530: A downstream chemical injector is
provided with the pressure washer. Insert the chemical
strainer (attached with clear tubing to the chemical
injector) into the container of chemical. Push the nozzle
holder on the end of the wand away from the gun. This
causes a drop in pressure that actuates the chemical
injector. Pull the nozzle holder to deactivate the
chemical injector and produce high pressure for rinsing.
The flowrate of the chemical is regulated by turning the
chemical adjuctment knob on the injector . Maximum
chemical flow is at a full two turns counterclockwise from
the closed (clockwise) position. T wisting the nozzle
holder will change the spray fan angle.
2340: The chemical injector is an accessory. See the
chemical injector instruction manual.
WARNING
DO NOT attempt to open or close the adjustable
nozzle when the spray gun is in use. Be sure that
the trigger safety latch on the gun is in the ”ON”
position before adjusting to avoid serious bodily
injury or fluid injection.
Check the distance that you will need to hold the spray
nozzle from the surface by test spraying on a scrap of
similar material. For soft surfaces, such as wook, hold
nozzle 3 ft (1 m) from the surface and gradually bring it
closer, checking to see if the high pressure spray is
damaging the surface.
Mist the wet surface with cleaning solution. Let it soak
briefly, then use the high pressure rinse to ”chisel” off the
soil. Keep the nozzle at an angle to the surface and at a
distance determined to be best for the surface. If some
soil remains, repeat the procedure, letting the chemical
soak a little longer . Stubborn soil can be cleaned of f
better with a stronger, heated cleaning solution.
Protect surfaces that might be damaged by the cleaning
solution or the high pressure spray. Rinse the solution
before it dries.
Trigger Safety Latch
WARNING
To reduce the risk of serious bodily injury ,
including fluid injection, splashing in the eyes or
on the skin, ALWAYS engage the trigger safety
latch whenever spraying stops, even for a
moment.
In the engaged position, the trigger safety latch
prevents the gun from being triggered
accidentally by hand or if it is dropped or bumped.
Be sure the latch is pushed fully down when
engaging it or it cannot prevent the gun from being
triggered. See Figure 2.
Figure 2
TRIGGER SAFETY LATCH SHOWN ENGAGED
TRIGGER SAFETY LATCH SHOWN
DISENGAGED