Nordson 3100V Series Customer Product Manual page 164

Maintenance
A
5-11
Flushing the System
Use
this procedure to periodically flush the system with hot melt material,
a
flushing material,
or
Type
R
cleaning
fluid.
System
flushing removes
excess dirt and
charred materialthat
can clog
the system and cause poor
system performance. You should also flush the system when you switch
to a new type of hot melt
materialthat
is
incompatible with the old
material. lf you
are unsure whether the materials are compatible, contact
your material supplier.
To
Prepare
for Flushing the System
1.
Ensure that the unit is at operating temperature
WARNING: System
or
material
pressurized.
Relieve system
pressure.
Failure to observe may result in serious burns.
2.
Relieve
system
pressure.
Refer
to Relieving System
Pressure in
this
section.
3.
See Figure A
5-10.
Drain
the unit by pumping as much hot melt
'
material from
the tank as possible using one of the following methods
Method of Draining
Description
Gun Place
a
suitable container under each gun
nozzle.
Remove
each nozzle from its gun.
Return
the pump air pressure to its normal
setting and pump the hot melt material out
through the gun.
Manifold Pump
the hot melt material out through the
manifold.
Refer
to
Flushing
a Standard
Manifold Filterin this section.
Hose
Disconnect a hose from its
gun.
Replace
the dust cover, which was removed during
installation, over the hose electrical
receptacle.
Position the hose over a
suitable
waste container and secure
it.
Return
the pump air pressure to its normal
setting and pump the hot melt material out
through the hose.
@998
Nordson Corporation
All dghts reserued
41-3000v
lssued 9/98
A5
E
N-07-[3V-X-A XAX]-s