Nordson 104 477A User manual

Heated Mine Filter
Part 104 477A
NORDSON CORPORATION l AMHERST, OHIO. USA

TECHNICAL PUB1 ICATION
4 6- 2 O - O O 0
Nordson CORPORATION / Amherst,Ohio44001
CONTENTS
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~.....~.......... 46-20-I
Specifications ..... ..~............................., .................
Function ............................................................
Appl icat ion ........................................................
lnstal lation ........................................................
Mechanical .........................................
Electrical ...........................................
Single Inlet Guns ....................................
Multi Inlet Guns .....................................
Wiring Diagram ....................................................
Maintenance .......................................................
Fi Iter Screen Removal .................................
Filter Disassembly and Cleaning Procedure ..............
Filter Reassembly and lnstal lation ......................
Troubleshooting ....................................................
Replacement Screens ...............................................
II Iustrated Parts List .................................................
Opt ion al Thermostats .................................................
Recommended Spare Parts .............................................
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CORPORATION /Amherst.Ohio44001 TECHNICAL PUBLICATION 4 6 - 2 0 - 1
THE HEATED INLINE FILTER
Part Number 271 453
Figure I - Heated Inl ine Fi Iter
DESCRIPTION
The heated inline filter consists of a large surface area filter screen assembly contained in a
heated aluminum body. A ,006 in. (.I5 mm) screen is installed as standard. Optional filter
screens with differing mesh sizes are available so the proper degree of filtration for the
application can be obtained. If a screen other than the .006 in. standard is desired, it must
be ordered as a separate item. The optional filter screens are I isted at the end of this section
in Table I.
The filter screen is readily accessible and easily removed for cleaning or replacing. A drain
valve is provided so loose contamination can be ftlushed out of the body when the filter screen
is removed.
A cartridge heater and button thermostat provide iLhe filter with heat and temperature control
independent of any other corn
op
onent in the system. Numerous thermostats are available, w ith
temperature settings from 120 F (49OC) to 450°F (1232OC), to enable the operating temperature
of the filter to be set consistent with the rest of the system. The desired thermostat temperature
must be specified when the heated inline filter is ordered. A 350°F (I770c) thermostat will be
installed as standard unless otherwise specified. See Table 2 at the end of this section for a
Iist of available thermostats.
The filter is wired in parallel with the gun. Two armored cordsets are provided; one attaches
the filter to the hose and the other replaces the standard gun cordset and attaches the gun to
the filter.
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/an
COPYRIGHT( NORDSON

4 6 - 2 00 2 0Nod’so~ CORPORATION / Amherst,
Ohio44~01
SPECIFICATIONS
TECHNICAl PUBLICATlOlV
A - 4.375 in. (lll.lmm)
B - 2.500 in. (63.5mm)
C - 5.562 in. (141.3mm)
D - 1.968 in. (50.Omm)
E - 2.000 in. (50.8mm)
Figure 2 - Heated lnline Filter Dimensions
I Electrical Requirements 220/240 VAC, 50/60 HZ, I45 Watts I
DESIGN
The Nordson heated inline filter is designed to be inserted into a hot melt application system
immediately prior to the extrusion gun.
before deposition . It provides a final filtering of the hot melt immediately It is specifically intended to remove any char which might form in the
applicator manifold or hot melt hoses and cause nozzle plugging.
For applications using very high viscosity adhesives the heated inline filter also will allow
“stage filtration”. When utilized in this manner, a larger filter screen can be installed in the
applicator to provide initial filtering of large contaminants. Final filtration can then be
provided by the heated inline filter, thereby lowering overall system back pressure.
A final benefit of the heated . I’
In me filter is that it acts as a fluid temperature regulator, greatly
reducing temperature fluctuations which cause variations in adhesive .deposition.
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ISSUED 6/80 SUPERSEDES

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Nordson CORPORATION /Amherst.Ohio44001 TECHNICAL PUBLICATION 4
6
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APPLICATION
The heated inline filter performs well in any appl’ication involving one or more of the
fol lowing parameters:
I. Precise deposition rate
2. High volume deposition
3. Unstable (rapidly degradable) hot melt
4.
5. Location that is subject to a high degree of airborne contamination
High viscosity (over 10,000 centipoise) hot melt
Figure 3 - Components
Fig, 3/Key Part No.
I 972051
2 271449
3 271484
4 973372
5 504141
6 981405
Description Req’d
Inlet Connector I
Elbow, 11/4’NPT Hole X 9/16 - I8 Fern, I
Drain Valve I
Reducing Bushing, l/4 X l/8 NPT I
Fi Iter Bung I
Set Screw, Sq. Hd., 3/8-I6 X 3/4 I
Mounting hole, .50 in.
Mechanical
INSTALLATION
The inlet connector I (Figure 3 ) of the heated inline filter connects directly to the ena or
0
the hose. The outlet fitting @ contains a hydraulic swivel connector, like the nd of the
ho e and c nnects directly to the
j/Z inch 712.7 mm) diameter bar. e gun. The mounting hole 7 will accept
&
a . I is provided for clamping the filter to the
mounting bar.
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Is..wIFn
6/80
COPYRIGHT@1980 NORDSON

4 6 - 2 0 - 4 0Nordson CORPORATION / Amherst.Ohlo4~001 TECHNICAL PUBLICATION
Electrical Hot melt application systems contain electrical potentials that can be fatal. Only
qualified personnel should instal I, operate and maintain this equipment.
A preset thermostat of the correct setting for maintaining proper adhesive application tempera-
ture must be installed before applyins electrical current to the system. Preset thermostats are
available in settings from 120°F (49 C) to 450°F (232OC). (See Table 2, at the end of this
section.) A thermostat is included with eachdnline f’lter.
time the filter is ordered, a thermostat of 350 F (17 + Unless otherwise specified at the
supplied with each heated inline filter. C) will be installed at the factory and Should a thermostat other then 35O’F be desired, it
must be noted at the time the order is placed. Order desired thermostat by correct part number
and description. Check to be sure the proper thermostat is installed in the filter before
connecting electrical power.
Single Inlet Guns
When installing the heated inline filter in an applicatiorl system using single inlet guns (e.g.,
H-20, standard AD-24) use the procedure specified below in steps 1 through 15. Refer to
Figure 4 for a wiring diagram.
1. Turn off applicator main power.
A2. Reduce input air pressure to the pump to zero and relieve system hvdraulic
+
0
&* pressure by triggering the guns.
3. Disconnect gun electrically and hydraulically from hose.
If the application system is at operating temperature, allow the aun to cool to
ambient. Wear safety gloves (P/N 902514) to avoid burns. -
4. Connect heated inline fiI ter to hose hydraulically.
5. Connect armored cordset attached to filter to the hose electrical connections.
The filter connects electrically to the hose exactly the same as the gun.
6. Remove the gun electrical cover and disconnect the armored cordset mechanically
and electrical I y* Discard this cordset.
7. Connect one end of the optional cordset shipped with the filter to the gun. This
cordset installs to the gun mechanically and electrically the sameas the cordset
just removed.
8. Reinstall the gun electrical cover.
9. Connect the gun hydraulically to the filter.
10. Remove the filter electrical cover and remove the “knock-out” from the cover.
11. Mechanically attach the other end of the cordset just installed on the gun to the
filter electrical cover through the “knock-out” hoie.
ISSUED 6/80 SUPERSEDES LITHO U.S.A.

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Nordson CORPORATION / Amhersl. ohlo44001 TECHNICAL PUBLICATION 46- 20 - 5
HEATER
;RMO$TAT,\ cARTjlDGE B
PORCELAIN
CONNECTOR
ARMORED CORDSET
(FIELD INSTALLED WHERE
APPLICABLE) - -I t%zY:;D2
(SHIPPED INSTALLED)
Figure 4 - Wiring Diagram
Sinale Inlet Guns, continued
12. Remove the two porcelain connectors (wire nuts) which connect the power wires
from the hose.
13. Attach the two power wires for the gun to the power wires from the hose and
reinstall the R orcelain connectors. Each porcelain connector should now be
connecting t ree wires.
14. Connect the green/yellow ground wire to the ground screw on the filter body.
15. Reinstal I filter electrical cover.
Multiple Inlet Guns
When installing the heated inline filter in an application system using a multiple inlet gun
(e.g., special AD-24-18,16 inch slot nozzle), one filter must be installed according to the
preceeding instructions listed in steps 1 through 15,, to provide power to the gun. The
remaining filters can then be connected to their respective hoses by merely using the cordset
that is installed on the filter.
MAINTENA,NCE
The only maintenance the heated inline filter requi’res is periodic cleaning or replacing of the
filter screen. It is recommended that the condition of the filter screen be checked initially
after every 24 hours of operation. After a period of time, operating experience will indicate
how frequently the filter screen will need to be cleaned or replaced. The following
instructions outline the procedure for removing the filter screen assembl y.
LITHO li 5 A ISSUED 6/80 SUPERSEDES COPYRIGHT @ 1980 NORDSOh

4 6 - 2 0 - 6 0
Nordson CORPORATION / Amherst.Ohio44~101 TECHNICAL PUBLICATION
Filter Screen Assembly Removal
1.
A e
A 0 2.
+
&U
3.
With the system heated to operating temperature, turn off the air to to the pump.
The inline filter must be thermally hot to service the filter screen. Use safety
goggles, safety gloves (P/N 902514), and appropriate protective clothing to
prevent injury from splashed hot adhesive or hot components.
Open drain valve O(
3 Figure 3), by turning screw counterclockwise to relieve
system hydraulic pressure.
Unscrew filter bung @ (F g
i ure 3), and pull filter assembly up and out of filter
body.
Filter Disassembly and Cleaning Procedure
Refer to Figure 5 for parts identification.
I. After removing the filter assembly from the filter body, remove screw @ from
the filter bung Q and disassemble
There are several methods for cleaning a hot melt filter screen @ de ending on the
type of hot melt used. Three of these methods are given in a, b, ancf c below.
The filter screen must be heated above the melting point of the adhesive to be cleaned.
Use safety goggles, safety gloves (P/N 902514), and appropriate protective clothing
to prevent injury from splashed hot adhesive or hot components.
a.
A
b.
A
A c.
place the filter in a container of Nadson Type “R” Solvent and heat above the
melt temperature of the adhesive. Blow off filter with high pressure air or scrub
with a fiber bristle brush. Do not use a metal brush, damage may result.
The flash point of Type “R” Solvent is 5720 F (289OC). To avoid fire, do not heat
this material above 47pF (24!?C). Do not heat Type “R” Solvent with an open
flame or in an uncontrolled heating device (e.g ., a smal I pan on an unregulated
hot plate).
Screens can be heated with a flameless electric heat gun. Wipe screen clean
with a clean cloth.
Never heat any component of a hot melt application system with a torch or other
open flame.
An ultrasonic cleaner may be used with a heated solvent.
Solvents may be toxic or a fire hazard. Use extreme care in selecting a substitute
for Type “R” Solvent.
ISSUED o/80 SUPERSEDES LITHO U.S.A.

CORPORATION /Amherst,Ohio44001 TECHNICAL PUBLICATION 46- 20 -7
Figure 5 - Filter Assembly
Fig. 5/Key 1 Part NO.
504140
981108
504141
161130
504146
941201
Description Req’d
Filter Assembly
Fi Iter Screw
Filter Bung
Filter Screen, .006
Core
O-ring, I I.D. X I - 3/16 O.D.
Viton
Filter Reassembly and lnstal lation
I.
2.
Reassemble the filter with core @positioned as shown in Figure 5. Slide the screen
over the core. Insert and tighten the screw.
Inspect O-ring Cl
F and replace it if it has hardened or is dcmaged in any way.
NOTE: If filter is assembled with hot melt on the components,
it must be heated above the melt temperature of the
hot melt before seating of the screen can be accomplished.
3. Screw the filter assembly into the filter body and tighten snugly. Do not
tighten.
4. With the drain valve open,
starts to flow. slowly increase air pressure to the pump until
5. . Pump adhesive through the drain valve until it flows clean and free of foreran
material. Th’
1swiII remove any loose material that may have fallen off the outside
of the screen upon removal from the filter cavity.
6. Close drain valve snugly.
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ISSUED
6/80
over
adhesive
.CIIPFR_CFnFC
COPYRIGHT@1980 NORDSON

4 6- 2 09 8 0
Nordson CORPORATION / Amherst,Ohio44,701 TECHNICAL PUB1 ICATIOIU
TROUBLESHOOTING
Before removing the electrical cover for troubleshooting or disassembly, be certain
the main power switch has been shut off.
electrical potentials that could be fatal. Hot melt application systems contain
0 n y qualified personnel should attempt I
to operate, maintain, or repair this equipment,
TROUBLESHOOTING CHART
CONDITION
Filter fails to heat
PROBABLE CAUSE
Gun circuit fuse failed
(in applicator)
Preset thermostat failed
Cartridge heater failed
SUGGESTED CORRECTION
Check continuity. Replace if failed
Check continuity. Replace if failed
Check resistance. Replace if beyond
tolerance. (Heater cartridge resis-
tance should be 359-419 ohms at
ambient temp.)
Filter over heats Preset thermostat failed closed Replace thermostat
Preset thermostat of wrong
temperature i nstal Ied Replace with thermostat of proper temperature
Leaking around filter O-ring damaged
bung Replace with new O-ring
Table I - Replacement Screens
* Installed in heated inline filter
ISSUED
6/80
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CORPORATION /Amherst.Ohio44001 TECHNICAL PUBLICATION 4 6- 2o- 9
Fig. 6/Key Part No. Description Req’d
5
6
7
**
**
**
Figure 6 - Filter with Electrical cover removed
981*007
271446
933056
270157
270607
981148
983120
271638
981098
242077
984155
983161
938084
271452
984155
983161
Thermostat, Preset I
Fil. Hd. Screw, 5-40 X l/8 2
lnline Filter Body I
Porcelain Connector 3
Mounting Retainer I
Insulator I
Fil . Hd. Screw. IO-32 X I l/4 2
Lockwasher #IO 2
Electrical Cover I
Hex Washer Hd. IScrew, 8-32 X l/4 2
Armored Cordset I
Panel Mounting Nut I
Lock Washer, 3/8 I
Heater Cartridge,. l45W. I
Armored Cordset I
Panel Mounting Nut I
Lock Washer, 3/8 I
* 350°F thermostat p/n 271 929 installed unless otherwise
See Table 2 for avaiiable thermostats.
** Shipped with heated inline filter.
specified.
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/F!l
CIIDCDCCnCE
c
/on
COPYRIGHT 01980 NORDSON

4 6 - 2 0- 10 0
Nordson CORPORATION /Amherst.Ohio44001
Table 2 - Optional Thermostats
Part No. Tern+’ F Tempo C
937066 120 49
937067 140 60
937068 160 71
937043 180 82
937044 200 93
271933 225 107
271934 250 I21
271935 275 I35
271936 300 149
271928 325 163
* 271929 350 177
271930 375 190
271931 400 204
271932 425 218
271937 450 232
* Installed unless otherwise specified
Table 3 - Recommended Spare Parts
TECHNICAL PUM /CATION
Part No.
504140 Filter Assembly
%I4141 Filter Bung
941201 O-ring I I.D. X l-3/16 O.D.
504146 Core
* 161130 Filter Screen, .006
981108 Filter Screw _
*Jr Thermostat, Preset
938084 Heater Cartridge
933056 Porcelain Connector
Description Req ‘d
I
I
I
I
I
I
I
I
I 3
* See Table I for part numbers of screens in other sizes.
Jr* Refer to Table 2 for Dart numbers of available thermostats.
A
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SUPERSEDES
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