14
RTD-Style
Hot Melt Hose
Items Needed
Replacement
Procedure
.
Applicator and associated equipment
technical manuals
e
Two wrenches; refer
to
Table
3 for the required wrench
sizes
.
Safety
goggles
.
Safety
gloves
o
Heat-protectiveclothing
o
Drain
pan
Table
3
Wrench
Sizes Needed for Tightening
Hose Fittings
Relieving System Pressure
WARNING: Hot. Risk
of burns. Hot applicator
parts,
splashed
hot
melt adhesive material,
and
hot
gun
surfaces can cause
severe burns. Wear heat-protective
clothing, safety
goggles,
and
safety
gloves
while replacing
hoses.
1. Heat the system
to operating temperature
WARNING:
System or
material
pressurized.
Relieve
pressure.
Failure
to
observe
may
result
in serious burns.
2. Follow the
procedures
described in
your
applicator technical manual
to relieve system
pressure.
ln
general,
relieving
system
pressure
requires
that
you perform
all of the following actions
that are
appropriate
for
your
unit:
.
Systems
with
a
piston pump:
Reduce
pump
air
pressure
to zero
and disconnect the supply
(incoming)
air line.
Place the air
pump
ON/OFF
switch
in
the OFF
position.
.
Systems
with
a
gear pump:
Turn the
motor speed dial to 0%.
Place
the
motor
ON/OFF
(or
START/STOP) switch in
the
OFF
(or
STOP)position.
Hose !.D. Size
Connector
Wrench
Size
Hose Fitting
Wrench Size
s/15
in
5/s
in
11/16
in.
s/6
in 11lain.
11lain.
Manual
45-21 108232E
lssued 1/00
@
2000 Nordson CoIporation
All rights ressrved
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