NLB 1012D - Page 41

Revision 1
DO . ........ .
Contact site engineer, obtain necessary
permits and note special precautions.
Erect barriers, rope off the clear area.
Erect warning signs.
Ensure adequate water supply.
Check fluid levels on engine, gearbox
and pump (lubrication oil, fuel and water).
Lay out equipment and visually inspect
for damage (hoses, connections, etc.).
Assemble equipment, checking all joints.
Ensure that filters are clean.
DO NOT ......... .
DO NOT commence work on site without
necessary permission.
DO NOT commence any jetting operation
until warning signs are on show and area is
roped off.
DO NOT operate without adequate personal
protection for eyes, head, ears, hands, feet,
and body.
DO NOT run any equipment with leakage
whatsoever, without rectifying.
DO NOT attempt to tighten any pressure
joint while equipment is under pressure.
DO NOT by-pass safety cut-outs.
Fully prime equipment and bleed where nee-
DO check reasons for malfunctions (low
essary. water, blocked filters, low oil level, etc.).
Fit gun or lances and/or control valves.
Visually check that correct size and type
of nozzle is fitted for the application.
Increase pressure slowly until operating
conditions are reached.
Re-check hose couplings and joints for
leaks.
Rectify all leaks, ensuring that the unit
is shut down and line pressure is
released before making adjustments.
Ensure all operators are wearing
suitable protective clothing and
are correctly positioned.
Regularly check operating conditions
(oil and water pressure, condition of
filters, pipe work and hoses).
© Copyright January, 2001 NLB Corporation
DO NOT operate with guns and control
valves not functioning correctly (leaking or
failing
to shut off).
DO NOT operate guns or control valves
with the operating lever tied back, wedged
or locked in the
"ON" position.
DO NOT operate with badly worn or
undersize nozzles.
DO NOT continue to operate if any
unauthorized personnel enter the operating
area.
DO NOT operate equipment at power levels
which can produce a reaction force greater
than the lance/gun operator can comfortably
absorb.
DO NOT leave high pressure water jetting
unit running unattended.
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