Periodicmaintenance; Lnspecting Hose Hydraulic Connections - Nordson 3100V Series Customer Product Manual

RTD-Style Hot Melt
Hose
21
Periodic Maintenance
lnspecting
Hose
Hydraulic
Connections
Perform periodic maintenance as often as required by the operating
conditions and the environment.
The entire hot melt application system, including the hoses, must
be
flushed periodically. Flushing removes excess dirt and charred material.
Also, clean the system
if
the adhesive
in
the system
is changed, and the
old and new adhesives are incompatible.
The system cfeaning procedure is presented
in
Maintenance Section, ot
the applicator technical manual.
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 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 dialto
0%.
Place the motor ON/OFF (or
START/STOP)
switch
in the
OFF (or
STOP)position.
o
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All rights reserved
108232E
lssued 1/00
Manual
45-21