Graco Hydra-Clean 206–515 Instructions-Parts List Manual page 7

WARNING
To avoid serious injury, including fluid injection and
splashing in the eyes or on the skin, never point the
gun at yourself or anyone else.
Before Using
Prepare cleaning solution as instructed, observing all
safety precautions. Pre-mix powered cleaners in a
separate bucket of hot water before adding to water in
the supply drum.
WARNING
Take care not to get spray containing cleaning
chemicals into your eyes, ears, or nose. If any
spray does get on your skin or in your eyes, flush
immediately and thoroughly with water. Seek
immediate medical attention.
See Fig. 2. Open the main air supply valve, hold the
spray valve open and slowly open the air petcock until
the pump is running slowly. After solution is coming
from the spray nozzle, open the ball valve (24) all the
way and adjust the air line lubricator (3) to deliver
about 1 drop per minute. Refer to the separate lubrica-
tor instruction manual.
Release the spray valve trigger and let the pump run.
The pump will charge the accumulator with liquid
pressure, then stall.
NOTE: Protect surfaces that might be damaged by the
cleaning solution and rinse before the solution dries on
both surfaces. You can clean stubborn dirt off better
with a stronger, heated solution.
Useful Hints
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Hold the spray nozzle about 2 feet (0.6 m) from the
surface and completely mist-wet the object you are
cleaning. Let it soak briefly, then use the spray to
"chisel" the dirt off – keep the nozzle about 6 in.
(152.4 mm) from, and at an angle to the surface. If
some dirt remains, wet the surface again. Let the
object soak a little longer, then hold the nozzle as
close as possible and spray to blast the dirt off.
Operation
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10
Fig. 2
After all the dirt is cleaned off, rinse all the solution off
with clear, cold water. When you are through cleaning,
close the air petcock and relieve the pressure.
Shutdown and Care of Unit
Do not allow the pump to run dry. It will quickly
accelerate to a high speed, causing damage. If your
pump is running too fast, stop it immediately and
check the fluid supply. If the container is empty and
air has been pumped into the lines, refill the contain-
er and prime the pump and the lines, or flush and
leave it filled with a compatible solvent. Eliminate all
air from the fluid system.
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
When shutting down for the day or weekend, shut off
the main air supply and relieve the pressure. Rinse
all solution off the equipment with clear, cold water,
Shut off the water supply valve and relieve the water
pressure.
Check the air line lubricator (3) often and keep it filled
with oil. Also check the pump packing nut regularly and
keep it just tight enough to stop leakage, but no tighter.
Use a 1/4 in. diameter rod to tighten.
24
34
9
19
16
CAUTION
WARNING
3
15