Download Manual, Model AD-29 with Interrupted Air

Model AD-29
with Interrupted Air
Part 104 454A
NORDSON CORPORATION
l
AMHERST, OHIO
l
USA
TlON
CORPORA
‘TECHNICAL
/ Amherst. Ohio 44001
PUB1
/CATION
CONTENTS
Description
.........
Specifications
Theory
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..........
.....
of Operation
lnsta I lation
..........
Opera t ion
Initial
Start-Up
Shut Down
Refilling
........
.......
.........
Maintenance
Trouble
..........
Recommended
Spare
PartsList
ISSUED
View
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-1
. . . . ..*.........................
-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-3
................................
. ...............................
# ...............................
-5
-6
-6
.
.......
Shooting
Disassembly
Exploded
....
Parts
- AD-29
.
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..a...
-7
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-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-9
List.
...............................
..................................
-9
-10
-11
............................................
4/77
42-15A-1
SUPERSEDES
LITHO
U.S.A.
SERVICES PROVIDED TO NORDSON CUSTOMERS
Customer Support Before And After The Sale
For more than 35 years Nordson has offered unparalleled service to its customers before, during
and after the sale. Nordson representatives will work with you to choose the best system for your
application. We’ll assist you during start-up and help train your employees to maintain and
operate the equipment. Plus, parts and service are only a phone call away from one of our
strategically located sales and service centers.
System Engineering
Custom designs and modification of standard equipment are available to meet your particular
needs. From a complete new system for automotive assembly to a special nozzle used in the
production of diapers, Nordson has the expertise to integrate adhesive and sealant equipment with
your manufacturing operation.
Parts And Accessories
In addition to standard replacement parts, many accessories are available to help improve
productivity and reduce downtime. For example, heated and non-heated in-line filters reduce
stoppages from clogged nozzles, and nozzles in multi-orifice, offset, right-angle and other designs
are available for special needs. Also, gloves, solvent, spare parts kits and other components are in
stock for immediate delivery. Conversion kits for tapers, labelers and box-forming equipment are
also available.
To help you eliminate downtime and costly inplant repairs, Nordson has developed a Rebuilt
Exchange (RBXsM)Program* which can save you up to 50 percent of the cost of new equipment.
You may trade in your old worn units, hoses and guns for rebuilt Nordson equipment which has
the same warranty as new equipment.
The Nordson Package of Valuesw
From specifications assistance to post-installation troubleshooting, the Nordson Package of Values
is designed to keep our customers productive and profitable by providing:
0
Carefully engineered,
0
Strong service support
0
The back-up of a well-established
0
A corporate commitment
durable products
international
company with financial and technical strength
to deliver what was specified
* This service not available in all countries.
306-l 8-662
ONORDSON CORPORATION 1993
All Rights Resewed
Issued 2193
770−497−3400
770−497−3400
3/05
US contact numbers updated 3/05
770−497−3500
770−497−3500
0
Nordson
P&A Division
Atlanta, Georgia
TECHNICALPUB1/CArlON
40-l-l
SAFETY SUMMARY
INTRODUCTION
Here you will find safety guidelines for the use of Nordson
equipment. These guidelines apply to anyone working with Nordson
equipment, including operations and service personnel. They are
repeated throughout this manual, along with specific warnings and
cautions not included in this section. These safety guidelines
cover:
l
Installation.
. Equipment operation.
l
Working with hot melt materials.
= Use of hot melt solvents.
Failure to follow these recommendations may result in personal
injury from burns or electrocution and/or equipment and property
damage.
EXPLANATION OF TERMS AND SYMBOLS
The following symbols are used in Nordson publications to alert the
reader to potential physical harm or equipment damage:
WARNING:
Failure to observe may cause
DEATH or PERSONAL INJURY
General
CAUTION:
Failure to observe can cause
DAMAGE TO EQUIPMENT
0
General
II
Electrical
A
c
Nozzle
3
Hot
A
e
A
0a*
l
Pressure'
Figure 1 - Nordson Corporation Safety Symbols
SUPERSEDES z/85
LITHO U.S.A.
8 NORDSON CORPORATION
All Rights Reserved
1986
TECHNICALPUl3L/CAllON
SAFETY DURING INSTALLATION
ELECTRICAL
A protective electrical ground connection to a reliable
earth.ground is essential for safe operation. Without one,
all accessible conductive components (including knobs and
controls that appear insulated) can render an electric shock.
A disconnect switch with lockout capability must be provided
between the power source and the equipment.
The power supply wire gauge and insulation must be sufficient
to meet the temperature and power requirements.
Only fuses of the correct type, voltage rating and current
rating should be used. Refer to the Nordson equipment parts
list for fuse recommendations. Using incorrect or nonrecommended fuses can present a fire hazard.
PNEUMATIC
Nordson recommends installing a lockout, three-way, manual valve in
the air supply line to the filter/regulator. This valve makes it
possible to relieve air pressure and lock out the pneumatic system
before undertaking maintenance or repairs.
GAS-SYSTEM (Pertains to FoamMelt
Kits Only)
@
Applicators and Nitrogen Blanket
Cylinders of compressed gas are under high pressure and can present
significant safety hazards if handled improperly. Refer to OSHA
General Industry Standards, paragraphs 1910.101, 1910.166 and 1910.167
for safety precautions that apply to the use, handling and storage
of compressed air.
SAFETY DURING OPERATION
Do NOT operate Nordson equipment under the following conditions:
= At a pressure higher than the rated maximum working pressure
of any component in the system.
= Near volatile or otherwise explosive gases or materials.
l
Without the covers, panels and safety guards properly
installed.
-
. At temperatures below 20° F (-6O C) or above 120° F (50° C).
ISSUED
LITHO U.S.A.
y/86
SUPERSEDES
2185
0 NORDSON CORPORATION
All Rights Reserved
1986
0
Nordson
-
P&A Division
Atlanta, Georgia
TECHNICALPUB1ICATION
40-l-3
With hoses enclosed in any material that interferes with
heat dissipation. This includes electrical conduit, insulation of any type or tight metal covers.
With large areas of hoses in contact with a cold floor, cold
supports or other such surfaces. Cold points along the hose
restrict the flow of adhesive inside the hose and can create
potential problems during operation.
(If outdoors or in drafty areas) with the applicator guns
unshielded from the wind. Rapid heat dissipation due to air
movement across the guns may cause operational problems.
With handgun trigger left unlocked while the gun is unattended.
In addition:
m Use only the metal base when attempting to lift or move this
equipment. Do not use equipment covers, doors, panels or
hose connectors as braces or grips.
. Never use this equipment as a ladder or stepping stool.
= Route all hoses so as to prevent damage from kinking,
abrasion and other physical damage. Do not allow a hose to
be installed with a bend radius of less than 6 inches
(150 mm).
m Never point an applicator handgun at yourself or anyone else.
SAFETY DURING SERVICING
m Do not perform internal service or adjustment on any equipment unless another person capable of rendering first aid
and resuscitation is present.
. Only qualified personnel should service Nordson equipment.
. To avoid personal injury, never touch exposed connections and
components while power is ON. Dangerous voltages exist at
several points in the equipment.
. Disconnect, lock out and tag external electrical power before
removing protective panels or replacing electrical components.
. Remove all jewelry (rings, watches, etc.) before servicing
equipment.
n
ISSUED
LITHO U.S.A.
If possible, stand on a rubber mat when servicing Nordson
equipment. Do not work on equipment if standing water is
present. Avoid working in a high-humidity atmosphere. Cover
exposed terminals and work area with rubber sheeting to avoid
accidental contact while the power is ON.
7/86
SUPERSEDES 2/85
Q NORDSON’CORPORATION
All Rights Reserved
1986
TECHNICALPUB1/CAT/ON
8 Always wear safety glasses, protective gloves (Nordson P/N
902 514 or equivalent) and long-sleeved protective clothing
to prevent injury from hot applicator parts, splashed hot
melt adhesive and hot gun surfaces,
-
= To prevent serious injury from molten adhesive under pressure,
always relieve system hydraulic pressure (by triggering the
handgun, for example) before opening any hydraulic fitting or
connection).
l
Never use an open torch, drill or broach when cleaning a
nozzle.
a Never continue to operate equipment with a known leak in the
system.
SAFETY WHEN‘USING HOT MELT ADHESIVES AND SOLVENTS
HOT MELT ADHESIVES
n
Use extreme care
solidify rapidly
Severe burns can
contact with the
still hot.
when working with molten materials. They
at high temperature and present a hazard.
occur if the molten materials come in
skin. Even when first solidified, they are
m Always wear protective clothing and eye protection when
handling molten material or working near equipment containing hot melt adhesives under pressure.
HEATING SOLVENTS
= Do NOT use an open flame or uncontrolled heating device to
heat solvents (for example, a small pan on an unregulated
hot plate).
Avoid fire hazard by using only a controlled heating device
to heat solvents (for example, a small deep fat fryer or
thermostatically controlled hot plate).
l
DO NOT USE PAINT-TYPE SOLVENTS UNDER ANY CIRCUMSTANCES!
These solvents are volatile and may create a fire and/or
toxic vapor hazard even at room temperature.
= Always be sure the work area is adequately ventilated.
Avoid prolonged or repeated breathing of solvent vapors.
ISSUED
LITHO U.S.A.
7/86
SUPERSEDES 2/8
5
‘i, NORDSON CORPORATION
All Rights Reserved
1986
0
Nordson
-
HALOGENATED
P&A Division
Atlanta, Georgia
HYDROCARBON
TECHNlCAl PUB1/CATION
40-l-5
SOLVENTS
Halogenated hydrocarbon solvents are dangerous when used to clean
aluminum components in a pressurized fluid system. No available
stabilizers prevent halogenated hydrocarbon solvents from reacting
under all conditions with aluminum components in a pressurized fluid
pumping system.
NEVER clean any aluminum component or flush any system using
halogenated hydrocarbon solvents. Use Type R solvents or contact
your solvent or hot melt supplier for a non-halogenated hydrocarbon
solvent for cleaning and flushing.
Halogenated fluids include the following solvents:
Fluorocarbon Solvents:
Dichlorofluoromethane
Trichlorofluoromethane
Chlorinated Solvents:
Carbon Tetrachloride
Chloroform
Dichloromethane
Ethylene Dichloride
Methylene Chloride
Monochlorobenzene
Monochlorotoluene
Orthodichlorobenzene
Perchloroethylene
Trichloroethylene
Brominated Solvents:
Ethylene Dibromide
Methyl Bromide
Methylene Chlorobromide
Iodinated Solvents:
Ethyl Iodide
Methyl Iodide
N-butyl Iodide
Propyl Iodide
IF MOLTEN MATERIAL COMES IN CONTACT WITH THE SKIN
n
Do NOT try to remove molten material from the skin.
. Immediately immerse the affected area in cold, clean water.
Keep the affected area immersed until the material has cooled.
. Do NOT try to remove the cooled material from the skin.
8 Cover the affected area with a clean wet compress.
= In cases of severe burns, look for signs of shock. If shock
is suspected, have patient lie down, use blankets to preserve
body heat and elevate the feet several inches.
. Call a physician immediately.
ISSUED
LITHO U.S.A.
7/a 6
SUPERSEDES 2/85
8 NORDSON CORPORATION
All Rights Reserved
1986
TECHNICAL PURLICATI~N
This page intentionally left blank.
--
/SSUED
LITHO U.S.A.
7/8 6
SUPERSEDES
2/85
Q NORDSON CORPORATION
All Rights Reserved
0
Nordson
CORPORATION
/Amherst.
TECHNICAL
Ohio 44001
AD-29
4 2 - 15 A - 1
PUBLICATION
GUN
DESCRIPTION
The
Nordson
resins
and
AD-29
(cold
glues)
harden
than
the
gun
is designed
in a fine
on corrugated
extrusion
By atomizing
spray
substrates
or wheel-type
the
cold
to apply
that
liquid
will
much
cold
liquid
penetrate
more
rapidly
adhesive
adhesive
into
systems.
a spray,
the
set time is reduced to a four (4) to six (6) second range.
This short set time eliminates
the need for long compression sections
commonly
required
in cold glue applications.
Installation
of the
is minimal,
and adhesive
This
P/N
NOTE:
Figure
1 - Model
P/N
270
AD-29
gun
waste
is simple,
clean-up
time
is slight.
gun features
interrupted
270 136 (270 137) does
atomizing
not.
air.
AD-29
571
SPECIFICATIONS
METRIC
U.S.A.
Ambient
Operating
Temperature
Operating
Air
Pressure
- Pressure
Operating
Air
Pressure
- Gun
Air
Consumption
Electrical
- Gun
Requirements
1 O-40
PSI G
45-70
PSI G
‘ot
.7-2.8
Depends
on application
2 SCFM
maximum
115 VAC,
- Control
50/60
Hz.,
kg/cm2
3.2-4.9
kg/cm2
.944
Li ters/Sec
.
50 Watts
1 00”
25.4mm
rl
2 44
61.97mm)
Figure
LITHO
2 - Mounting
U.S.A.
L
ISSUED
d/77
SUPERSEDES
Dimensions
COPYRIGHT
@
1977
NORDSON
4 2 -
‘I 5 A -
0
Nod”~~
2
Nordson
Pnu-Bon
, a Pressure
pot
Pot
(or pump).
In an installation
regulator.
System
6
C
directed
adhesive
is comprised
of one or more
18 Pump),
pot,
is supplied
is delivered
high pressure
to the
OF OPERATION
a pressure
air
TECHNICAL
/ Amhersr. ohlo 44001
THEORY
(or a Model
having
Atomizing
the adhesive
has a single
CORPORATION
to the
orifice
air
and the
is supplied
to each gun
AD-29
necessary
to the
by a 3/8”
guns
hoses
pressure
O.D.
PUB1
A , a Stitch
Control
0
to connect
the guns
pot through
polyeth
lene
a
hose
gun by a l/4”
O.D.
polyethylene
hose
E . The
d
to deliver
the adhesive
to the substrate,
Atomizing
five air ports located
in the air cap.
through
lCATlON
air
is
,c
Figure
A multi-gun
supply
installation
air
and adhesive
A solid-state
Stitch
spray
to keep
pattern
customer-supplied
screw
0
F
at the
uses two
to each
Control
glue
triggering
Adhesive
flow rate
rate can be further
3 - Nordson
will
Pnu-Bond
manifolds
gun
from
permit
consumption
device
System
(one on the
a single
the
spray
supply
pattern
at a minimum.
(limit
switch,
air
(1 Gun)
line
and one on the
fluid
line)
to
source.
to be interrupted
into a spray-gapThe solid-state
timer is signaled
by a
photocell).
is directly
related
to the air pressure
refined
by adjusting
the needle I ift.
applied
to the pressure
pot.
The flow
This adjustment
can be made using the
top of the gun.
LITHO
,
ISSUED
4/77
SUPERSEDES
U S A.
0
Nordson
/ Amherst.
CORPORATION
TECHNICAL
Ohio 44001
4 2 - 15 A - 3
PUB1 /CATION
INSTALLATION
The
Nordson
Pnu-Bond
can be used.
System
Installation
has several
time
will
components
depend
that
on the size
require
of the
installation
system
(how
before
the system
many guns
are to be
used).
To
1.
install
the
Position
Pnu-Bond
System
use the
following
procedure:
each gun to be used on a l/2”
diameter
Attach
a solenoid
valve
head screw.
mounting
bar and secure it by tightening
to each gun using the close nipple
the square
supplied.
The
NOTE:
spray
pattern
width
is directly
proportional
The viscosity
of the adhesive
to the substrate.
height
1:l
to spray
and
pattern
Generally,
width.
to the distance
will
determine
the
ratio
from the nozzle
the ratio of gun
is somewhere
between
1:1.5.
An adhesive
Example:
with
a viscosity
1600 CPS will
provide
pattern
at a 1 :l ratio.
adhesive
CPS
with
a viscosity
may provide
closer
2.
Mount
the
Pattern
Stitch
m
Do not
W
tures.
MM
101.6
MM
LITHO
L
Control
on the
subject
the
parent
4.
Connect
each gun solenoid
to the
for correct
wiring
information.
5.
Connect
Connect
7.
Attach
machine
Stitcher
Connect
the
manual (57-l
6.
triggering
device
and wiring
an air
fluid
filter
supply
(limit
meets
line
all
assembly
to the
switch,
to the
4/77
of the
or extreme
Refer
to the
stitcher
to stitcher.
electrical
pressure
side
SUPERSEDES
Refer
photocell)
applicable
U S.A.
ISSUED
MM
stand.
vibration
power supply.
instructions.
Stitcher.
i nlet
or separate
to excessive
Stitcher
to a 115 VAC input
2) for complete
installation
the
MM
Dimensions
3.
is grounded
ratio.
25.4
50.8
76.2
1 II
2”
3”
4”
4 - Spray
pattern
METRIC
U.S.A.
Figure
of 500
a spray
to a 1:1.5
of
a spray
An
code
to the
ambient
Stitcher
service
Make
tempera-
service
manual
certain
(57-
12)
the gun
requirements.
pot.
3/8
NPS
dual
regulator
assembly.
COPYRIGM
@
1977
NORDSON
4 2-I
5
0
A-4
CORPORATION
No&on
INSTALLATION,
The
Gun
Installation
AD-29
5 - Typ ical
must
(See
be connected
Single
Figure
5)
to the
pressure
Attach
a l/4
NPS
x l/4
NPT
connector
2.
Secure
a l/4
NPT
x l/8
NPT
reducer
3.
Attach
a l/8
NPT
x 3/8
T u b e compression
4.
Secure
the
3/8”
black
polyethylene
tube
5.
Secure
the
3/8”
black
polyethylene
tube
NPT
x 3/8
Tube
compression
Attach
3/8
NPS
x l/4
NPT
connector
7.
Secure
l/4
NPT
x l/8
NPT
reducer
8.
lnstal I the
l/8
9.
Secure
the
l/4”
natural
10.
Attach
the
open
end of the
Multi-gun
Each
Tube
@to
0
2
the
dual
0
fitting
0
4
3
to filter
to the
compression
natural
regulator
assembly’s
tubing
to the
output
side.
reducer.
fitt ing.
to the compression
0
to solenoid
0
7
and hydraulically.
to the connector.
6
0
polyethylene
lation
on the gun with
5
assembly
previously
0
fitting
0
9
polyethylene
8
on press ;ure
installed
on the
to the
tubing
pot.
connector.
connector.
compression
to the
another
fluid
fitting.
inlet
n
u
on the
gun.
Installation
gun
installed
x l/4
lnstal
fitting.
6.
NPT
Gun
pot pneumatically
1.
l/8
PUBlICATlON
(Continued)
Figure
Single
TECHNICAL
/ Amherst. Ohio 44001
must
be connected
on the
1.
Attach
2.
Install
l/4
air
and fluid
NPS
one of the
x l/4
two
pneumatically
lines
NPT
and hydraulically
permits
this
connector
manifolds
to the output
supplied
to the
pressure
pot.
dual
regulator
A manifold
to be done.
on the
side
of the
assembly.
connector.
LITHO
*.
/SSUED
4/‘77
SUPERSEDES
U S A.
0
Nordson
CORPORATION
MULTI-GUN
/Amherst,
TECHNICAL
Ohio 44001
INSTALLATION,
Install
4.
Plug
any unused
5.
Plug
the open port
6.
Cut the black polyethylene
tubing to the correct length.
to allow
10 feet or 3.04
meters of tubing for each gun.)
7.
Connect
8.
Install
9.
Connect
NPT
a l/8
T u b e compression
x 3/8
manifold
a length
ports
NPT
x l/4
in the
pipe
with
to each compression
of black
NPS
a l/8
T u b e compression
x 3/8
a length
with
fitting
at the end of the manifold
of tubing
NPT
-
tubing
NPT
each gun to be used.
NPT
pipe
(We
plug.
have supplied
in the air
line
enough
tubing
manifold.
on each gun.
to each gun at the solenoid.
connector
to output
side of fluid
11.
Attach
the remaining
12.
Starting
at the port the furthest
from the manifold
Tube compression
fitting
for each gun to be used.
13.
Plug
any remaining
14.
Plug
the open
15.
Cut the
supplied
with
for
in the solenoid
a 3/8
ports
a l/4
fitting
Secure
manifold
manifold
plug.
fitting
10.
port
4 2 - 15 A
/CAT/ON
(Continued)
3.
a l/8
PUB1
to the connector
a l/8
NPT
at the end of the
on the
filter
assembly.
filter.
fluid
inlet,
install
a l/8
NPT
x l/4
pipe plug.
manifold
with
a l/4
NPT
pipe
l/4”
natural polyethylene
tubing to the correct
length.
to allow a maximum of 10 feet or 3.04
meters of tubing
plug.
(Enough bulk tubing
to each gun in the
is
system.)
16.
Secure
a length
of tubing
to each compression
17.
Attach
the open end of each
l/4”
tubing
fitting
length
to the
in the
fluid
line
manifold.
fluid
inlet
on each gun.
OPERATION
Initial
A
Start-Up
Agitate
NOTE:
Do not use flammable
adhesives.
any
solvent
adhesive
harmful
adhesive
before
pouring
For best results
always
into
Provide
pressure
protect
adequate
ventilation
to safely
pot.
the adhesive
from
freezing.
Cold adhesives generally
have a short shelf life (about 90 days).
Refer to adhesive specification
sheet
rotate your adhesive stock.
statement
of shelf life.
2
Pour adhesive
into pressure
Relieve
air pressure before
NOTE:
LITHO
d-
U.S
pot after
loosening
remove
vapors.
loosening
clamps.
four
(4) clamps
and removing
Always
for
cover.
The pressure pot should have a stainless
steel or
lastic liner or be coated
that the water-based
adhesive will not react wit R the galvanized
pot.
so
A.
ISSUED
d/77
SUPERSEDES
COPYRIG I-IT @
1977
NORMON
5
0
CORPORATION
Nodso~
42-I5A-6
OPERATION,
/Amherst,
(Continued)
3.
Close
4.
Apply air pressure to the pot.
(-7 and 2.8 kg/cm2).
the pot and secure
The
NOTE:
Adiust
5.
TECHNlCAl PUB1 /CATION
Ohio 44001
air
air
pressure
pressure
The
NOTE:
all
four
(4) clamps.
The
to the
system
works
pot directly
wel I at pressures
affects
the
flow
between
rate of the adhesive.
to the gun solenoid.
gun works
best at an air pressure
setting
of 60 PSIG
(4.2
kg/cm2).
Close the needle adiustment
screw by turning
it clockwise
until
Adjust the needle lift.
it stops.
Always
loosen the locknut
before turning
the screw.
Now open the needle
6.
lift adjustment
by turning the screw one (1) full turn counterclockwise.
needs adjustment,
increase or decrease the pot (pump) pressure.
7.
Tighten
8.
Adjust
9.
The
Shut
10 and 40 PSIG
the needle
the Stitch
system
lift
locking
Control
is ready
If the
flow
rate
nut.
(see the
Stitcher
service
manual).
for use.
Down
Keep
NOTE:
the system
removing
pressurized
pressure
unless
opening
and refilling
ressurized,
By keeping the system
the adhesive will
Keeping
t R e fluid lines full wil I prevent
fluid lines.
plugging
the hoses and guns.
Shut
off
1.
Turn
on Stitcher.
2.
If possible,
1.
the pressure
pot or
I ines.
not drain
adhesive
out of the
residue from
Stitcher.
Start-Up
Refilling
1.
2.
the Pressure
Shut
off
A
Open
air
4.
Loosen
Agitate
substrate
pressure
fresh
(over)
guns and fire
them a few times.
to pot.
valve.
Do not loosen
four
under
Pot
pot relief
+
0Y1
3.
position
(4) clamps
adhesive
clamps
until
and remove
supply
all
pressure
has been relieved.
pot cover.
briefly.
LIT-HO
ISSUED 4/77
SUPERSEDES
U S A
0
CORPORATION
Nordson
Refi I I ing the
5.
Pour
Pressure
fresh
Close
7.
Turn
Pot,
adhesive
TECHNlCAL
Ohio 44001
42-l!iA-7
PUBLICATION
(Continued)
into
pot.
it is a good idea to use a liner
To keep the pot, fluid lines,
and guns c lean,
as
the
pot is refilled
keeping skimming
in the pot.
This I iner can be alternated
of the pot at a minimum.
NOTE:
6.
/Amherst.
the pot and secure
on air pressure
the four
(4) clamps.
to the pot.
MAINTENANCE
A cold
adhesive
system
requires
some daily
maintenance
to keep the system
working
at optimum
levels.
LITHO
*
1.
Clean
the air ports
2.
Remove
3.
Check
4.
Do not allow
5.
Flush
the air
the
(4) in the air
cap and clean
inl ine adhesive
the inside
the hydraulic
filter
walls
cap daily.
the area around
the
on a regular
basis.
of the pressure
part of the system
regularly
U.S.A.
/SSUED
4/77
Use a soft
SUPERSEDES
nozzle
wire
probe
(about
seat of all
.025”
residual
diameter).
adhesive.
pot to skim over.
with
warm water.
COPYRIGHT @
1977 NORMON
TECHNICALPUBlICATlON
TROUBLESHOOTING
POSSIBLE
PROBLEM
CAUSE
Air
cap ports
blocked.
Adhesive
flowing,
atomization
too coarse
Air
cap ports
blocked.
Adhesive
flowing,
atomization
too fine
Gun
solenoid
exhaust
No
Pressure
Adhesive
flowing,
atomization
adhesive
no
flow
No
air
Control
Control
not “On”.
not functioning.
adjusted.
Air line blocked.
Pressure pot empty.
Glue build up on needle
Too
little
adhesive
much adhesive
adhesive
pattern
Improper
(length)
adhesive
pattern
AD-29
leaking
cyl inder
from
cover
Fluid
line
Fluid
Glue
filter
build
Pressure
Needle
flow
Improper
Adhesive
or nozzle.
Pressure
ot not sufficiently
pressurized
1.76 kg P cm2 optimum).
Needle
lift adjusted too low.
flow
Air escaping from ports
air cylinder
cover
pressurized.
to gun .
Gun solenoid
failed.
Needle
lift improperly
Fluid line blocked.
Too
blocked.
pot not sufficiently
pressure
Stitch
Stitch
port
(width)
ports
blocked.
plugged.
up on needle
or nozzle.
pot over 45 PSIG/3.16
I ift adjusted too high.
kg/cm2.
Air cap port(s) plugged.
Fluid seat blocked.
Glue dried on needle face.
Air cap orifice
blocked.
Triggering
device ma1 function.
Stitcher
set incorrectly.
Stitcher
malfunctioning
(see appropriate
in AD-29
in
(25 PSIG/
Piston
Needle
seals need
packing
lubrication
manual).
or replacement.
needs replacement.
or solenoid
LITHO
IccIxn
A/77
SUPFRSFf?F.C
U.S.A.
0
No&on
CORPORATION
TECHNICAL
/ Amherst. Ohio 44001
42915A-9
PUBLICATION
DISASSEMBLY
-29
gun
from
is disassembled
the
Loosen
extrusion
the air
by removing
end of the
cylinder
cover
can be removed
The
needle
packing
kit.
0
4
, O-ring
0
, and seal
5
washer
0
16
are available
in the
AD-29
seal
REASSEMBLY
the AD-29
gun, insert the nylon seal washer
($
in the, gun&d:.
Pk;;h:e
the recess located at the lower end of the nee le packing
in the gun body.
Thread
the needle packing securely
in the gun body.
small
amount
of grease
to lubricate
the
packing
and needle
as these
packing
is tightened
securely
parts
Use a
are installed
in the
gun body.
Be certain
NOTE:
Place
the
needle
in the
gun body.
over th
upper end of the shut off needle
@
ab
t l/16”
piston
11 on the clamp.
Place the piston seal
10 and the
&
piston washer
9 over the piston and secure this assembly with the locking
nut
8 . Insert
6
e extrusion
the needle assembly through
the packing
until
the shut off needle tip appears at8
(.040”-.
threaded
clamp
070”)
nd thread
the
@
the
end of the gun.
Place
the
piston
back-up
spring
c)7 on top of the air
reasGmbly
Complete
on the gun body.
place the air cap 0
in the
of the gun.
retaining
nut
RECOMMENDED
Fig.
LITHO
n
SPARE
and threadf_he
‘the nozzle/seat
winto
the retaining
nut
PARTS
air
cylinder
cover
the gun body,
to the extrusion
@
end
LIST
6
Key
Part
No.
Description
8
270
984
696
133
Seal
. Nut,Kit, Lock,
AD-29 Hex,
9
270
145
.
Washer,
10
270
138
.
Seal,
11
270
144
.
Piston
12
270
143
.
Clamp,
13
14
15
270
270
940
142
598
060
.
.
.
Needle,
Packing,
O-Ring,
Shut Off
Needle
Viton,
l/8
16
270
635
Washer,
Seal,
2
270
152
Air
3
270
151
Nozzle/Seat,
Piston
4/n
Req’d.
l/4-28
Ref.
1
Seal
1
Piston
Cap,
1
1
Threaded
1
1
1
1
x l/4
Nylon
1
AD-29
1
AD-29
U.S.A.
ISSUED
piston
SUPERSEDES
1
COPYRIGHT
@
19n
NORDSON
4 29
I
5A- 1 Q
0
Nordson
Figure
CORPORATION
6 - AD-29
TECHNICAL
/ Amherst, Ohto 44001
(P/N
270
571)
- Exploded
PUBLICATION
View
LITHO
,
lSSUE0
d/77
SUPERSEDES
U.S
A.
CORPORATION
TECHNlCAf
/ Amherst, Ohio 44001
PART
Fig.
LIST
6
Part
Key
i
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
No.
Description
Required
L
Req’d.
270 571
153
270 152
270 151
270 141
270 139
270 140
270 156
984 133
270 145
270 138
270 144
270 143
270 142
Gun,
. Nut, AD-29
Retaining
Air Cap, AD-29
: Nozzle/Seat,
AD-29
. Cover,
Air Cylinder
. Screw,
Needle
Stop
. Nut,
Locking
. Spring,
Piston Back-Up
. Nut,
Lock,
Hex,
l/4-28
. Washer,
Piston Seal
. Seal,
Piston
. Piston
. Cl amp, Threaded
. Needle,
Shut Off
270
940
270
.
.
.
.
Packing,
Needle
O-Ring,
Viton,
l/8 x l/4
Washer,
Seal
Body, Gun w/Nameplate,
.
.
971 403
973 402
270 157
981 148
:
.
.
.
Connector,
l/8 NPT x l/4 Tube
Plug,
Pipe,
l/8 NPTF
Mounting,
Retainer
Screw,
Fil.
I-Id., IO-32 x l-1/4
981
973
.
.
Screw,
Nipple,
598
060
635
405
000
Body, Gun,
Nameplate,
Ref.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AD-29
AD-29
AD-29
1
Sq. Hd.,
3/8-16
Close,
l/8 NPT
ANCILLARY
LITHO
42-15A-11
PUBlICATlON
(Ship
1
1
1
2
1
1
with)
EQUIPMENT
for installation:
Req’d .
Description
Part
No.
901
015
Valve,
900
534
900
511
Tubing,
.040”
Tubing,
.062”
Solenoid,
120 VAC
Polyethylene,
Wal I
Polyethylene,
Wal I
1
l/4”
O.D.,
3/8”
O.D.,
I
U.S.A.
ISSUED
s/78
SUPERSEDES
4/n
COf’YRlGHT
a
1978 NORDSON