RTD-Style
Hot Melt
Hose
7
MaintenancelRepair
Cleaning
a
a
a
a
a
Allow only
qualified personnel
to
perform
the
procedures
described
in this
document.
When
performing
such tasks,
wear
protective
clothing and
equipment.
WARNTNG:
Even when
the
circuit breaker or
main
power
switch is OFF, the unit is still electrically
energized.
Complete
the following steps
prior
to
maintenance
or repair:
a
Disconnect, lock
out,
and
tag external
power
supply.
To ensure the external
power
supply is disconnected,
attempt to
operate the unit.
lf
the
unit does not energize,
proceed
with
maintenance or
repair work.
lf
the
unit energizes,
repeat
the disconnect,
lock
out,
and tag
procedure.
Re-test the unit.
Follow the specific instructions
provided
in this
manual to release
the
system
pressure
in
the
entire
unit.
Secure
pneumatically-
or hydraulically-operated
equipment
against
uncontrolled
movement.
Only use
parts
which do
not
compromise
the safety
of the unit. Only
use
genuine
Nordson
parts.
Always use
tools
with insulated handles
when removing
or installing
components.
NOTE:
Always refer to the
material manufacturer's
Material Safety
Data
Sheet
(MSDS)
or
material information sheet
before working
with any hot
melt material.
WARNING: Never clean any aluminum
part
or flush any
system using halogenated hydrocarbon
fluids. Examples of
common
halogenated hyd rocarbons
are:
dichloromethylene,
1,1,1
-trichloroethylene,
and
perchloroethylene.
Halogenated
hydrocarbons
may react violently with aluminum
parts.
WARNING: Fire, open flame,
and
smoking are
prohibited
when
cleaning fluids are
used.
Observe
all explosion
prevention
regulations. Cleaning fluids may
only be heated
using
temperature-controlled and
explosion-protected
heaters.
@
2000 Nordson Corporation
All
rights reserved
108232E
lssued 1/00
Manual 45-21
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