Revision 1
• Replacement or repairs are made to the system
• Any recommended practices are violated
11.
Refresher training - Operator retraining shall be on
an
annual basis or more
frequently,
if
needed.
K.
Permanent Cleaning Areas
1.
Enclosure - The areas shall be suitably enclosed and warning notices prominently
displayed
at
the access points and perimeters.
2.
Access - Access by persons other than the high pressure water jetting team shall be
strictly prohibited while work is in progress.
If
any unauthorized entry is made, all
work shall cease immediately.
3.
Hazards
-The
working area shall be free from hazards likely to trip personnel and be
provided with adequate drainage and lighting fixtures.
L. Freeze Precautions
1.
Freeze precautions - During the periods where there is a risk
of
freezing, follow
NLB's recommendations or take the following precautions on shutting down:
a.
Remove gun or nozzle from delivery hose.
b.
Pump water from supply tank until level
of
water is just above the filter.
c.
Add recommended quantity of anti-freeze into water tank.
d.
Place delivery hose into water tank and secure.
e.
Run the pump until the anti-freeze works through the system.
f.
Move selector lever
to
dump or recycle position until the anti-freeze shows in the
water tank.
g.
If
no supply tank is fitted, follow NLB's recommendations.
WARNING:
IF
A HIGH PRESSURE PUMP OR HOSE APPEARS FROZEN,
ON
NO
ACCOUNT
MUST
THE PUMP
BE
ENGAGED OR THE ENGINE STARTED
IF
THERE IS
DIRECT DRIVE TO THE PUMP, UNTIL THE SYSTEM
HAS
BEEN
THAWED OUT
AND
LOW
PRESSURE WATER
HAS
BEEN
ALLOWED
TO
FLOW
THROUGH
THE
SYSTEM
TO
THE NOZZLE END
OF
THE
LANCE
(THE
LANCE
HAVING
BEEN
REMOVED).
© Copyright January,
2001
NLB Corporation
2-28
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