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vent the automatic shut–off for any reason or by any
means when operating the equipment.
When operating any type of high pressure liquid jetting,
blasting or cleaning devices the operators must always
wear protective clothing including, but not limited to, a
hard hat with full face visor, heavy duty rain coat and
pants, boots with nonskid sole and safety toe, rubber
gloves with rough grip surface and ear noise protection.
Full operator attention and alertness are required when
operating this equipment to avoid personal injury, death
and/or equipment damage. The operators should take
frequent rest breaks and cease operations when they
become tired or distracted.
Before the equipment is started, the work area must be
inspected and properly prepared to avoid personal inju-
ry, death and/or damage to equipment. Make sure the
work area is checked for hazardous fumes, has ade-
quate ventilation for engine exhaust and sufficient
drainage for released fluid. Check the work area for
electrical equipment, connections, outlets, fixtures, or
lines. If any are present they must be made water tight
and the electrical power to these devices must be shut
off to avoid electrical shocks from fluid contact. The
work area should be clearly marked and roped off to
keep unauthorized people and vehicles from entering.
Remove all loose parts, tools and equipment from the
work area before beginning operation.
All pressure containing devices including wands,
nozzles, guns, hoses, connections, etc., should be reg-
ularly checked for condition. These components
should all be tagged with their tested pressure capabili-
ties together with the date testing was performed. Al-
ways be aware of the pressure level in the system
and never connect any equipment to the system
which has a rated or tested pressure capability be-
low the system operating pressure. The equipment
must be shut down and the system pressure released
before changing or disconnecting wands, nozzles,
guns, hoses, connections or any other pressurized
system components.
All pressure containing devices including wands,
nozzles, guns, connections, etc., plus all automatic
shut–off, pressure and control equipment should be
treated with care. Protect them from damage by
people, objects and vehicles. Never lay them in dirt,
mud, ice or other loose material which could plug the
fluid opening or interfere with their operation. Never
use the wand, nozzle, gun, etc. to pry loose material off
items being cleaned.
Before starting operation in a cold environment, check
to make sure there is no ice in the fluid system and re-
peat this inspection each time before operation is re-
started.
Before purchasing wands, nozzles, guns, connections,
and hose, etc., manufacturers of these components
should be contacted for detailed information on the de-
sign and safety features incorporated in their products.
After careful study of various manufacturers products,
we recommend that only those wands, nozzles, guns,
connections and hose, etc., be considered for pur-
chase that you judge to offer the highest quality of de-
sign, construction and safety, since these components
are among the most critical to the safe operation of high
pressure liquid jetting, blasting and cleaning equip-
ment.
After you have selected and purchased these compo-
nents, follow the manufacturer’s instructions complete-
ly in their use.
In summary, high pressure jetting, blasting and
cleaning are inherently dangerous, as the pressur-
es and flow rates needed to remove scale, clean,
etc. are sufficient to cause personal injury, death
and/or equipment damage resulting from, but not
limited to, any of the conditions described in the
above Danger Notices.
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