13
Section 1 - Safety Information
by the high pressure stream. Waterblasting tool
operators must be equipped with the following;
heavy duty, steel toed, non-skid knee high boots,
a heavy duty, protective rain suit, gloves, hard hat
with safety shield or goggles and ear protection.
Support team operators should be equipped with
a minimum of steel towed, non-skid safety boots,
heavy duty work clothes, gloves, hard hat, safety
glasses or goggles and ear protection.
WARNING
uLTRA-HIGH PRESSuRE BLASTING CAN CAuSE dEBRIS
TO BE PROJECTEd uNEXPECTEdLY IN ANd AROuNd
THE WORK AREA THAT CAN CAuSE SEvERE INJuRY.
MAKE SuRE ALL PERSONNEL STAY WELL CLEAR OF THE
BLASTING AREA ANd uSE HARd HATS, EYE ANd EAR
PROTECTION.
DANGER
AvOId SERIOuS INJuRY OR dEATH. NEvER APPROACH
A PERSON THAT IS RuNNING A HANd TOOL duRING uHP
OPERATIONS uNLESS THE PERSON CAN SEE YOu. MAKE
SuRE THAT THE PERSON STOPS BLASTING BEFORE YOu
GET WITHIN RANGE OF POTENTIAL BLAST.
WHEN BLASTING, NEvER TuRN AROuNd SuddENLY
WITHOuT STOPPING THE PRESSuRE FIRST IN CASE
A P E R S O N H A S A P P R O A C H E d Y O u W I T H O u T Y O u R
KNOWLEdGE.
ALWAYS STOP THE PuMP BEFORE PASSING THE TOOL.
Check Water Supply
Use only clean water in any ultra-high pressure
system. DO NOT accept water drawn from reten-
tion ponds, canals or other non-potable sources.
Purge System
Before attaching a spray bar to the Hog Head as-
sembly, engage the high pressure pump at low
speed to purge the system. Any dirt or debris
in the system can clog nozzle orifices and cause
system pressure to spike excessively, causing
damage to components.
Check Water Blasting Head
Check the blasting head and spray bar for smooth
and proper operation before each shift. Do not use
equipment that has not been checked thoroughly.
Check Control Components
Check all controls, switches and control panel
devices to ensure each is working properly before
beginning operations. Do not use equipment if any
device is malfunctioning.
Know Your Surroundings
Always be aware of, and pay attention to your
surroundings. – i.e. - pump, hoses, people, walls,
moving vehicles, live lanes of traffic, etc.
Test System
With the spray bar and high cohesive nozzles
installed, operate the pump at low pressure to
check for nozzle accuracy and leaks in spray bar,
connections or nozzles. Should any repairs or
adjustments be necessary, disengage the pump
to relieve all pressure before making any required
repairs or adjustments.
Always Use At Least Two Operators.
For safety purposes, at least two operators should
always be present during waterblasting opera-
tions with one tool and three operators present
when operating two tools. The primary operator
handling the waterblasting tool must have direct
control of the water pressure. The secondary
operator (assistant), should observe operations
from a safe distance (at least 12 feet (366 cm)
and be able to shutdown system pressure from
a secondary control to quickly relive pressure in
case of an emergency.
Brace Yourself and Be Prepared
Operators of handheld tools should always be
braced and maintain firm, solid footing at all times
before beginning pressure testing the system
or blasting. Be ready, if water volume from the
pump is excessive. Excessive force from the spray
bar can be enough to lift the Ground Hog off the
ground causing loss of control and/or the blast to
cross the path of people or equipment. Always
make sure other members of the crew are a safe
distance from the operator before blasting opera-
tions begin to ensure there is no chance for them
to come in contact with the high pressure stream
if the operator loses control.
If waterblasting in a man lift, on scaffolding or
above ground level, always use a fall protection
device such as safety belts, harnesses, and fall
nets. Never operate handheld waterblasting
equipment while standing on slippery surfaces.
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