Graco 3A8476E, SST Switch 3D Gun Instructions

Instructions - Parts
SST Switch™ 3D
Gun
3A8476E
EN
Swiveling applicator for robotic sealing applications. For professional use only.
Not approved for use in European explosive atmosphere locations.
See page 3 for model information including maximum working pressure.
Important Safety Instructions
Read all warnings and instructions in this
manual before using the equipment.
Save these instructions.
Model Numbers
25T991
25T992
25T993
Model Numbers
25T994
25T995
25T996
Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Component Identification . . . . . . . . . . . . . . . . . . . . 7
Main Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SST Switch 3D Gun Installation . . . . . . . . . . . . . . 8
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation Overview . . . . . . . . . . . . . . . . . . . . . . 12
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 12
Flush the SST Switch 3D Gun . . . . . . . . . . . . . . 12
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preventive Maintenance. . . . . . . . . . . . . . . . . . . 13
Factors Affecting SST Switch 3D Gun Life . . . . 14
Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . 14
End of Product Life . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Removal of SST Switch 3D Gun From Robot for
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SST Switch 3D Gun Disassembly . . . . . . . . . . . 17
SST Switch 3D Gun Assembly. . . . . . . . . . . . . . 20
Testing Before Installation . . . . . . . . . . . . . . . . . 26
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Parts Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Nozzle Head and Material Tube Assembly . . . . 28
Lock Ring Assembly . . . . . . . . . . . . . . . . . . . . . 29
Central 3D Body. . . . . . . . . . . . . . . . . . . . . . . . . 29
Modular Air Cylinder Assembly 25U924 . . . . . . 30
Swivel Chamber. . . . . . . . . . . . . . . . . . . . . . . . . 31
Connection Housing . . . . . . . . . . . . . . . . . . . . . 32
2
Kits and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
LASD Nozzle Assembly Kits 25U016 and 25U017
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
LASD Nozzle Plates Assembly Kits 25U331 and
25U332 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Spray Stream Nozzle Kits. . . . . . . . . . . . . . . . . . 35
Spray Stream Adapter Kit, 25U338 . . . . . . . . . . 35
Nozzle Plug Kit, 25U333. . . . . . . . . . . . . . . . . . . 36
PCF to 3D Gun Cable Kit 25U441 . . . . . . . . . . . 36
Male to Male M12 Connector Kit, 15N436. . . . . 36
Yearly Service Kit, 25U328 . . . . . . . . . . . . . . . . . 37
Service Kit, 25T485 . . . . . . . . . . . . . . . . . . . . . . 37
Ball Shut Off Needle Kit, 25U330 . . . . . . . . . . . . 37
Bearing and Seals Kit, 25U329 . . . . . . . . . . . . . 38
5 Pin Cable Kit, 17V857 . . . . . . . . . . . . . . . . . . . 38
8 Pin Cable Kit, 15N265 . . . . . . . . . . . . . . . . . . . 38
Material Seal Insertion/Removal Tool, 17V972. . 38
Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . 39
Pattern Width Versus Spray Stream Style Nozzle
Sizes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Material Pressure Versus Spray Stream Style
Nozzle Sizes. . . . . . . . . . . . . . . . . . . . . . . . . 40
Pattern Height / Width Versus cc/sec for Spray
Stream Style Nozzles . . . . . . . . . . . . . . . . . . 41
Bead Pattern Spray Stream Style Nozzle . . . . . . 41
Pattern Thickness Versus flow Rate and Robot
Speed for 0.50 mm LASD Nozzle, 25U016 . 42
Pattern Thickness Versus flow Rate and Robot
Speed for 0.40 mm LASD Nozzle, 25U017 . 43
Spray Pattern LASD Nozzle . . . . . . . . . . . . . . . . 43
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5 Pin and 8 Pin Connector . . . . . . . . . . . . . . . . . 46
5 Pin Cable Schematic . . . . . . . . . . . . . . . . . . . . 46
8 Pin Cable Schematic . . . . . . . . . . . . . . . . . . . . 46
5 Pin - No Sensor for 25T991 and 25T994 . . . . 47
5 Pin and 8 Pin Connections for Temperature and
Pressure Sensors. Model No. 25T992, 25T993,
25T995 and 25T996. . . . . . . . . . . . . . . . . . . 48
Technical Specifications . . . . . . . . . . . . . . . . . . . . 50
Electrical Components . . . . . . . . . . . . . . . . . . . . 51
California Proposition 65 . . . . . . . . . . . . . . . . . . . . 51
Graco Standard Warranty. . . . . . . . . . . . . . . . . . . . 52
3A8476E
Models
Related Manuals
Manual in English
3A8066
Description
Switch 3D Gun Mounting Kit
Models
Part No. Series
25T991
B
25T992
B
25T993
B
25T994
B
25T995
B
25T996
B
3A8476E
Maximum Working
Pressure
psi (MPa, bar)
3350 (23.1,231)
Material Port Options
One Port One Material No
Recirculation
One Port One Material No
Recirculation
One Port One Material No
Recirculation
One Port One Material No
Recirculation
One Port One Material No
Recirculation
One Port One Material No
Recirculation
Sensor Types
No Sensors
Temperature
Temperature and
Pressure
No Sensors
Temperature
Temperature and
Pressure
Cable
Type
Nozzle
Configuration
in degrees
5 Pin
5 Pin and
8 Pin
5 Pin and
8 Pin
0, 45, 75
5 Pin
5 Pin and
8 Pin
5 Pin and
8 Pin
0, 45, 90
3
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks.
When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.
Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this
manual where applicable.
WARNING
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
•
•
•
•
•
•
Do not point dispensing device at anyone or at any part of the body.
Do not put your hand over the fluid outlet.
Do not stop or deflect leaks with your hand, body, glove, or rag.
Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or
servicing equipment.
Tighten all fluid connections before operating the equipment.
Check hoses and couplings daily. Replace worn or damaged parts immediately.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Specifications in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical
Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For
complete information about your material, request Safety Data Sheets (SDSs) from distributor or
retailer.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and
create safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
4
3A8476E
Warnings
WARNING
BURN HAZARD
Equipment surfaces and fluid that is heated can become very hot during operation. To avoid severe
burns:
•
Do not touch hot fluid or equipment.
•
•
Protective eyewear, and hearing protection.
Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury,
including eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes
but is not limited to:
3A8476E
5
Overview
Overview
Description
The SST Switch 3D Gun is a Stainless Steel,
high-pressure, multi-nozzle material applicator for
robotic applications that require high precision and
quality. The SST Switch 3D Gun is equipped with a
swivel for optimum robot flexibility and has three
individually operated nozzles. The swivel makes it
possible for the robot to rotate the nozzle head
independently of the cables and the hoses supplying
the SST Switch 3D Gun.
The nozzle head can be specified for various nozzle
types, angles and slot directions.
Due to its flexibility, the SST Switch 3D Gun is designed
for applications like:
•
Liquid Applied Sound Dampner (LASD).
•
Underbody sealing (UBS).
•
•
6
The SST Switch 3D Gun is designed to handle most
types of single component adhesives and sealants with
medium to high viscosity.
The solenoid valves operating the pistons for the
material valves are mounted externally for easy
maintenance.
If required, the following optional features can be added
to the basic configuration of the SST Switch 3D Gun:
•
•
One PT 100 temperature sensor in the material
inlet, measuring the inlet material temperature.
The material pressure can be monitored by a
pressure transducer mounted in the material
channel.
Underbody coating (UBC).
Seam sealing, ISS, HEM.
3A8476E
Component Identification
Component Identification
Main Assembly
D
F
B
C
E
A
FIG. 1
Key:
A. Nozzle Head and Material Tube Assembly page No. 28
B. Lock Ring Assembly page No. 29
C Central 3D Body page No. 29
D.Connection Housing page No. 32
E. Swivel Chamber page No. 31
F. Modular Air Cylinder Assembly 25U924 page No. 30
3A8476E
7
Installation
Installation
To avoid personal injury, be especially careful when
connecting the high pressure material supply system
and always keep clear of the nozzles when test
spraying.
Before starting installation of the Graco SST Switch 3D
Gun, refer to the Description on page 6, and
Component Identification on page 7, in order to be
familiar with the various parts of the SST Switch 3D
Gun.
To ensure trouble free operation of the SST Switch 3D
Gun, it is important that the unit is properly installed on
the robot. It is important that the function of the SST
Switch 3D Gun is carefully checked before start up.
The SST Switch 3D Gun has multiple robot mounting
options which can be purchased separately from
Graco. See SST Switch 3D Gun Mounting Kits Manual,
(3A8066) for instructions and parts for mounting to a
specific robot. For typical installation of a SST Switch
3D Gun see SST Switch 3D Gun Installation in this
section.
Inspect the SST Switch 3D Gun for shipping damage. If
there is damage notify the shipping carrier immediately.
Grounding
The equipment must be grounded to reduce the risk
of static sparking. Static sparking can cause fumes
to ignite or explode. Grounding provides an escape
wire for the electric current.
The following grounding instructions are minimum
requirements for a basic SST Switch 3D gun
installation. The specific system and robot being used
may include other equipment or objects that must be
grounded. Check local codes for detailed grounding
instructions.
SST Switch 3D Gun: Ground through a connection to a
properly grounded material hose and pump.
Pump: See your pump manual.
8
Material hoses: Use only electrically conductive hoses
with a maximum of 100 ft. (30.5 m) combined hose
length to ensure grounding continuity. Check the
electrical resistance of the material hoses at least once
a week. If the total resistance to ground exceeds 25
megohms, replace the hose immediately. Use a meter
that is capable of measuring resistance at this level.
Fluid supply container: Follow local codes.
Solvent pails used when flushing: Follow local codes.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which interrupts
grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the SST Switch
3D Gun firmly to the inside of a grounded metal pail,
then trigger the valves.
SST Switch 3D Gun Installation
Typical Required Parts and Installation of
SST Switch 3D Gun
The following parts are used in a typical installation of
the SST Switch 3D Gun and are normally required.
Some parts may vary depending on specific robot and
options. SST Switch 3D Gun mounting kits may be
purchased separately from Graco.
•
•
•
•
•
•
•
•
•
•
•
1 pc. Graco SST Switch 3D Gun with nozzle head
and nozzle cap.
1 pc. robot mounting flange.
1 pc. anti-rotation bracket.
1 pc. 5 Pin Cable Kit, 17V857 for all SST Switch 3D
Guns.
1 pc. 8 Pin Cable Kit, 15N265 for SST Switch 3D
guns with temperature and/or pressure sensor.
2 pcs. guide pin Ø 6mm.
3 pcs. M6x20 hex socket head screws.
4 pcs. hex socket head screws.
3 pcs nozzle assembly kits.
1 pc. 8 mm polyurethane air hose.
1 pc. material supply hose with 1/2 in. BSPP
fittings.
3A8476E
Installation
Robot Mounting Flange
1. Attach the mounting flange onto the sixth axis of
the robot with the required bolts supplied with the
SST Switch 3D Gun mounting kit.
2. The mounting flange is then attached to the body of
the SST Switch 3D Gun with three M6x20 hex
socket screws. Torque to 98.2 in-lbs (11.1 N•m). It
is important to make sure the 6mm guide pins
supplied with the kit are inserted into the correct
positions. See FIG. 2.
Nozzles
NOTE: Nozzles are not supplied with the SST Switch
3D Gun and must be purchased separately to match
customer specifications. See LASD Nozzle Kit
Assembly page No. 34, or Spray Stream Nozzle Kits
and Spray Stream Adapter Kit, 25U338 page No. 35
for nozzle type and size options.
LASD Nozzle Style Attachment
NOTE: See LASD Nozzle Assembly Kits 25U016 and
25U017 for constructing an LASD nozzle assembly.
1. Insert O-ring (707) into the 3 head adapter
assembly (105).
M6 x 20 hex
socket screws
2. Place small end of nut (706) against the 3 head
adapter assembly (105) but do not tighten thread.
6mm guide
pins
3. Align the pins of the nozzle assembly (705) and
insert into the 3 head adapter assembly (105).
Torque the nut (706) to 15 ft-lb (20.34 N•m) See
FIG. 4.
FIG. 2
Anti-Rotation Brackets
707
After the SST Switch 3D Gun is mounted to the robot,
the anti-rotation brackets must be attached to the
swivel housing (511) and to the fixation point on the
robot using the hex head screws. Exact fitting of the
anti-rotation brackets will depend on the robot and kit
being used. See FIG. 3 for installation example and
page 31 for swivel housing part reference.
Anti-Rotation
Brackets
706
705
105
FIG. 4
Spray Stream Nozzle Style Assembly.
1. Place the O-rings (707) into the 3 head adapter
assembly (105).
2. Place an O-ring into each spray nozzle sealer
adapter (902). The nozzles (801) are then inserted in
the spray nozzle sealer adapter (902) making sure
the nozzle is keyed into the spray nozzle sealer
adapter.
511
FIG. 3
3A8476E
3. Line up the dowel pins of the spray nozzle sealer
adapter (902) with the 3 head adapter assembly
(105), and secure together with the retaining nut
(901) Torque to 15 ft-lb (20.34 N•m). See FIG. 5.
9
Installation
Customer must install air bleed valve between air
supply and SST Switch 3D Gun connection. See FIG. 7.
The material supply hose connects to the SST Switch
3D gun using a customer supplied fitting. The inlet
thread is 1/2 In. BSPP. See FIG. 7.
105
512
707
902
511
Customer
supplied 8 mm
air hose.
801
901
FIG. 5
Cable Connections
Customer supplied
bleed valve
Customer supplied
material hose.
NOTE: Cables and hoses are attached only after SST
Switch 3D Gun is bolted to robot.
Connect cable (1001) for all SST Switch 3D Gun
models, and (1003) for SST Switch 3D guns with
sensors. Then connect other end of the cables by
making the appropriate connections to the robot’s
control cabinet. See FIG. 6.
See the Models table page 3, for the cable type needed
for your SST Switch 3D Gun mode.
FIG. 7
PCF Installation
NOTE: The following installation is for SST Switch 3D
Guns that use a Precision Continuous Flow Unit (PCF).
See PCF to 3D Gun Cable Kit 25U441 on page 36 for
parts.
1. Remove the PCF cover (A).
2. Disconnect the dispense valve air solenoid cable
from FCM port 1(B). Secure the loose end of the
cable to the PCF fluid mounting plate (C).
1001 and 1003 if
equipped with
sensors
Connect to robot control
cabinet (not shown).
FIG. 6
Hose Connections
3. Disconnect the regulator air line (D) from the
incoming air wye fitting (E).
4. Disconnect the incoming air wye fitting (D) from the
incoming air elbow fitting (F). Secure the incoming
air wye fitting to the PCF fluid mounting plate (C).
See FIG. 8 page 11.
NOTICE
Only use air fittings that are rated at a temperature
equal to or higher than the operating temperature of
the fluid dispensing system. Lower rated air fittings
could melt and cause damage to the SST Switch 3D
Gun.
The air supply is connected to the SST Switch 3D Gun
with an 8 mm polyurethane hose to the elbow swivel
fitting (512) on the side of the swivel housing (511).
10
3A8476E
Installation
Check for Free Movement
C
E
After completing the installation of the hoses and
cables, the free movement must be checked by moving
the fifth axis of the robot. The hoses and cables must
be able to move freely without stretching or scratching
the robot arm.
F
Flush SST Switch 3d Gun Before Using
B
D
The SST Switch 3D Gun was tested with lightweight
mineral oil, which is left in the fluid passages to protect
parts. To avoid contamination with oil, flush the SST
Switch 3D Gun with a fluid that is compatible with the
fluid being dispensed and the equipment wetted parts.
A
Leak Test and Priming for Use
FIG. 8
5. Insert the regulator air line (D) into the incoming air
elbow fitting (F).
6. Install the M12 thru connector (1001) into the PCF
fluid mounting plate (C).
7. Install the GCA M12 cable (1002 ) to FCM port 1
and M12 thru connector (1001).
8. Reinstall the PCF cover (A). See FIG. 9.
C
1003
After the SST Switch 3D Gun is completely installed on
the robot, the SST Switch 3D Gun can be tested for
leaks. This procedure also primes the SST Switch 3D
Gun for use.
a. Open the air supply. There must be no sound
from leaking air.
b. Check that the solenoid valves (518), shown on
Swivel Chamber page 31, are working
properly by opening and closing each valve
from the robot pendant and listen to the sound
of the piston in operation.
c. Apply material supply pressure and check for
leakage.
d. Position the SST Switch 3D Gun into a
grounded metal pail and purge all nozzles one
by one until the unit is completely filled with
material and all entrapped air is removed from
the supply system.
F
1002
D
1001
A
FIG. 9
3A8476E
11
Operation
Operation
Operation Overview
The SST Switch 3D gun dispenses ribbons of material
onto a substrate. The height and width of the material
bead is dependent on the nozzle selection, flow rate of
the material and the speed of the robot movement. The
size of the bead can also be determined by the size of
the nozzle. See Performance Charts starting on page
39 to help determine settings of the SST Switch 3D
Gun.
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection and
splashing fluid, follow the Pressure Relief Procedure
when you stop spraying and before cleaning,
checking, or servicing the equipment.
This procedure describes how to relieve pressure from
the SST Switch 3D Gun. See your supply system
manual for instructions on relieving pressure from the
entire system.
1. Shut off the material supply.
2. Position the SST Switch 3D Gun into a grounded
metal pail to relieve the fluid pressure.
3. Relieve all air pressure in the air lines by shutting off
the Customer supplied bleed valve. See FIG. 7.
4. If the nozzle tip or material hose is clogged or if
pressure has not been fully relieved after following
the steps above, very slowly loosen the customer
supplied material hose from the 1/2 in. BSPP inlet
fitting (604), (see FIG. 7).
12
Flush the SST Switch 3D Gun
To avoid fire and explosion, always ground
equipment and waste container. To avoid static
sparking and injury from splashing, always flush at
the lowest possible pressure.
•
•
Flush at the lowest pressure possible. Check
connectors for leaks and tighten as necessary.
Flush with a fluid that is compatible with the fluid
being dispensed and the equipment wetted parts.
Setup
1. With the SST Switch 3D Gun fully primed and cable
connections integrated into the robot control
system, the SST Switch 3D Gun is ready for
dispensing material onto the substrate.
2. Calculate the flow rate by the required height and
width versus the robot speed.
3. Adjust the material control system supplied with the
robot to the required flow rate.
4. Program the robot with the desired nozzle used to
dispense the material. The nozzle must be
perpendicular to the substrate.
5. Run the program and validate the height and width
of the bead.
6. The flow rate, robot speed, and nozzle size can be
adjusted to achieve the desired height and width of
the material bead.
7. Nozzle distance from target can affect the quality of
the bead. The further the nozzle is from target the
more air can be trapped between the bottom of the
bead and substrate.
8. After the correct height, width, and quality of the
bead is confirmed, the SST Switch 3D Gun is ready
for dispensing.
3A8476E
Maintenance
Maintenance
Inspect the SST Switch 3D Gun, material, and air lines
at least once every two weeks. Inspect for leakage and
other visible damage.
To help prevent serious injury from pressurized fluid,
relieve pressure before cleaning, checking or
servicing the equipment.
NOTE: Before disassembly, make sure all spare parts
are available (new in an unopened package if delivered),
and other parts are thoroughly cleaned. Suitable
lubricant and thread locking compound should also be
available.
Task
Maintenance Table
Check the applicator for material leakages by visual
inspection.
Listen carefully for air leakages.
Clean the gun thoroughly.
Inspect hoses and cables for excessive wear.
Check the leakage detection hole on the swivel
chamber and all connections.
Check and tighten mounting connections
If possible, run a spray test on a spray test table.
Replace the needle packings.
Inspect needles for wear when replacing needle
packing
Change the sealing rings in the swivel chamber
Preventive Maintenance
Typical wear parts in the SST Switch 3D Gun are the
rotary seals (508) inside the swivel housing, the needle
ball shutoff valves (418), and needle packing (411)
seals.
Due to the different materials that can be used in the
SST Switch 3D Gun, the frequency for preventative
maintenance has to be evaluated for each case of
application.
Based on average usage, Yearly Service Kit, 25U328
is provided for maintenance once a year and Service
3A8476E
The following tables list recommended maintenance
procedures and frequencies for typical usage. The
maintenance is divided between mechanical and
electrical tasks. A typical application is the SST Switch
3D Gun mounted on a robot dispensing a moderately
abrasive sealant.
Schedule
Daily
Daily
Daily
Weekly
Weekly
Weekly
Weekly
If a normal PVC material and supply pressure are used,
replace after 1,000,000 cycles (1 cycle = open and close). If
normal LASD material and supply pressure are used,
replace after 250,000 cycles.
Replace needles if needle coating has worn through and
base material of needle is exposed.
After 500,000 revolutions
Kit, 25T485 is provided for maintenance once every
two years (see page 37). Both of these kits are can be
purchased through Graco.
1. Dismount and disassemble the SST Switch 3D
Gun. See SST Switch 3D Gun Disassembly
starting on page17.
2. Reassemble the SST Switch 3D Gun. See Remove
the Material Inlet Block starting on page 17. Then
test all functions of the SST Switch 3D Gun, to
make sure that all parts are installed correctly.
13
Recycling and Disposal
Factors Affecting SST Switch 3D
Gun Life
The maintenance table should be used as a guideline
for the frequency of maintenance tasks. Additional
factors that could affect SST Switch 3D Gun life include
the following:
•
•
•
•
Material Fluid - Abrasive or fiber filled fluids are
much harder on seals, shafts, and seats than
non-abrasive fluids such as oil.
Pressure drop across the valve seat - As the
internal valves open or close, the fluid is
accelerated to a high velocity at the rod shutoff
valve/seat contact area. The rate of wear at the rod
shutoff valve/seat contact area will be much greater
at 3000 psi than at 1000 psi. Changing the tip size
to reduce fluid velocity can have a substantial affect
on wear.
Number of cycles - This has a much greater affect
on SST Switch 3D gun wear than number of
gallons. If you can do the same job with fewer
on/off cycles, the SST Switch 3D Gun will last
longer.
Speed of actuation - Opening and closing the
internal valves quickly will increase rod shutoff
valve and seat life.
Recycling and Disposal
End of Product Life
At the end of the product’s useful life, dismantle and
recycle it in a responsible manner.
•
Perform the Pressure Relief Procedure, Page 12
•
Drain and dispose of fluids according to applicable
regulations. Refer to the material manufacturer’s
Safety Data Sheet.
•
Remove circuit boards, and other electronic
components. Recycle according to applicable
regulations.
•
Deliver remaining product to a recycling facility.
14
3A8476E
Troubleshooting
Troubleshooting
NOTE: Follow Pressure Relief Procedure, page 12,
before checking or repairing the SST Switch 3D Gun.
Problem
Air leaks from SST Switch 3D Gun.
Cause
Worn gasket.
Material leaks from SST Switch 3D
Gun weep hole.
SST Switch 3D Gun does not shut
off.
Tighten air connections.
Loose end cap screws.
Tighten screws.
Tip seal or seats are worn.
Obstruction inside SST Switch 3D
Gun.
Replace seat seals.
Replace nozzle head assembly
Replace rod shutoff valve.
Remove nozzle head.
Check rotary seals and replace as
needed.
Loose air connections or air supply
turned off.
Tighten air connections and turn on
air.
Broken piston, debris in air cylinder,
or debris inside the fluid section.
Disassemble SST Switch 3D Gun.
Check and if necessary replace,
piston, piston rod, and O-rings.
Seals are worn.
Worn rod shutoff valve-seat
interface.
Loose air connections or air supply
turned off.
Broken rod, piston, or tip. Debris or
cured material inside fluid section.
Loosen the retaining set screws
located in the piston.
3A8476E
Replace O-rings.
Seals not installed correctly.
Spring broken or not installed
correctly.
SST Switch 3D Gun does not open
or dispense material.
Replace gasket.
Loose or worn air connections.
Worn O-rings.
Material leaks from front of SST
Switch 3D Gun.
Solution
Replace nozzle head and rod
shutoff valve rod shutoff valve seat.
Disassemble SST Switch 3D Gun.
Check spring and replace if
necessary.
Tighten air connections.
Disassemble SST Switch 3D Gun.
Check and if necessary replace,
piston, piston rod, and O-rings.
Confirm the piston rod is fully
inserted into the piston and tighten
set screws
15
Repair
Repair
To help prevent serious injury from pressurized fluid,
relieve pressure before cleaning, checking or
servicing the equipment
Removal of SST Switch 3D Gun
From Robot for Repair
NOTE: Clean the SST Switch 3D Gun, robot and all
parts surrounding it before removing the SST Switch 3D
Gun.
1. Make sure air and material pressures are relieved.
a. Follow the Flush the SST Switch 3D Gun page
12.
FIG. 11
7. The SST Switch 3D Gun can be now be removed
from the robot.
b. Follow the Pressure Relief Procedure page
12.
2. Disconnect the material inlet hose. Always use two
wrenches when loosening the high pressure hose
connection.
3. Disconnect the 8mm air hose.
4. Unplug the cable connectors by unscrewing the
fitting on the 5 pin cable connector (1001) and 8 pin
cable connector (1003) if fitted. See FIG. 10.
1001 and
1003 if
equipped
with sensors
FIG. 10
Customer
supplied 8mm
air hose.
Customer supplied
material hoses
5. Remove the screws that attach the swivel housing
(511) to the anti-rotation bracket.
6. Unscrew the three screws that mount the SST
Switch 3D Gun to the robot mounting flange. See
FIG. 11.
16
3A8476E
Repair
SST Switch 3D Gun Disassembly
615
The SST Switch 3D Gun can be disassembled after
being removed from the robot. See Removal of SST
Switch 3D Gun From Robot for Repair.
NOTICE
607
Materials dispensed by the SST Switch 3D Gun are
extremely abrasive, harden quickly and the parts must
be thoroughly cleaned before or during any
disassembly and repair or damage can occur to
components.
Remove Cover Plates
1. To access SST Switch 3D gun internal parts,
remove side covers (605), top cover (606) and outer
cover (520), by removing screws (519) with a hex
key wrench. See FIG. 12.
606
609
617
610
518
FIG. 13
Remove the Material Inlet Block
605
605
616
614
1. Remove customer supplied inlet fitting and 1/2 in.
BSPP washer seal (603).
2. Take off the SST single inlet adapter (602) by
removing the four M5 SHCS screws (601) with a
hex key wrench.
3. Discard packing Viton O-ring (613) and replace with
a new one when reassembling. See FIG. 14.
Customer supplied
inlet fitting
519
601
520
FIG. 12
602
Remove Electrical Components
603
1. Disconnect solenoid valve cable connections (617)
from solenoid valves (518).
613
2. Solenoid valves (518) can be removed from the air
valve manifold (516) by the screws attached to the
solenoid valves.
3. Remove the dual connector bracket (616) with the
dual cable connector (614) attached by removing
the two screws (615)with a hex key wrench.
4. Remove the RTD sensor (609), pressure transducer
(610) and 10mm washer seals (607) if equipped.
Washer seals should be replaced with new ones
before reassembly. See FIG. 13.
3A8476E
FIG. 14
17
Repair
Remove the Pneumatic Section
1. Air cylinder assembly (401-417) and needle ball
shut off valves (418) are removed together by
removing the three M5 SHCS screws (408).
NOTE: Be careful to not damage or bend the needle
ball shut off valves (418) when extracting from housing.
Various seals and gaskets that are discarded in the
following procedures need to be replaced by new
before reassembly.
409
403
404
418
401
2. Air gaskets (410) should be discarded.
3. Remove air manifold (516) by removing M3 SHCS
screw fasteners (517) with a hex key wrench. Air
gasket (514) should be discarded.
4. Remove inner cover (513) by removing M3 flathead
screws (515)with a hex key wrench.
5. Remove the 1/8 in. BSPP swivel elbow fitting (512)
with a hex key wrench. See FIG. 15.
408
401-417
514
410
FIG. 15
516
517
405
407
402
FIG. 16
4. Remove short and long seal bearing guides (413
and 414) with a 10mm wrench.
5. Using a knife edge tool or screwdriver, carefully pry
the lower bearings (417) out of the seal bearing
guides (413-414). Discard lower bearings.
6. Using a hook tool extract the needle packing (411)
seals from the seal bearing guide side and discard.
7. Remove the two needle packing (411) seals and
upper bearings (412) from the seal bearing guides
and discard the needle packing and upper
bearings.
515
513
8. Remove the O-rings (415), and split ring seals, (416)
and discard. See FIG. 17.
409
512
412
Remove Pneumatic Section
1. Detach cylinder cover (402) by removing three M4
SHCS screws (401) with hex key wrench. Loosen
screws evenly because the cover is under spring
(403) tension and could bind when removed.
413
3. Extract pistons (404) from air cylinder housing (409)
Discard guide rings (406) and O-rings (407).
416
411
411
411
2. Loosen M3 set screws (405) three turns each and
pull ball shut off needles (418) out of the assembly.
See FIG. 16.
18
406
414
FIG. 17
415
417
3A8476E
Repair
Nozzle Adapter Removal
301
1. Loosen the turnbuckle locking nut (101) by turning
it counter clockwise as seen facing the main body
of the SST Switch 3D Gun. The nut rotation will
separate the 3 head adapter assembly (105) away
from the long tube assembly (103).
101
201
101
2. Discard adapter gasket (102) and valve shut off
bearing (104). See FIG. 18.
203
503
103
101
FIG. 19
105
103
102
301
Swivel Housing Disassembly
1. Dust seal ring (501) can be removed from the air
distribution ring bearing (504)
102
104
FIG. 18
Central Body Removal
1. Loosen the turnbuckle locking nut (101) by turning
it counter clockwise as seen facing the main body
of the SST Switch 3D Gun. The nut rotation will
separate the long tube assembly (103) away from
the center body (301). Discard adapter gasket
(102).
2. Loosen the two M5 SHCS screws (203) with a hex
key wrench and remove the lock ring assembly
(201) along with the washer (202).
3. To release the pressure on the internal seals and
ease disassembly, align access holes on the center
body (301) with the four M6 screws (503) and
loosen the screws.
2. Remove flange bearings (502) and discard.
3. Remove M6 flathead screws (503) with a hex key
wrench and remove the air distribution ring bearing
(504).
4. Remove the four O-rings (505) and four air seals
(506) from the air distribution ring bearing (504) and
discard.
5. Tap the internal components (507-510) out of the
swivel housing assembly (511). It is recommended
to use seal installation /removal tool 17V972 and a
soft face mallet to tap the internal components from
the swivel housing.
6. Discard the rotary seals (508). See FIG. 20 on page
20.
4. Tap the center body (301) out of the swivel housing
assembly (511) using a soft face mallet. See FIG. 19.
3A8476E
19
Repair
501
507
502
509
503
510
504
511
502
508
506
505
FIG. 20
SST Switch 3D Gun Assembly
511
NOTE: Before assembly, It is recommended to have
Yearly Service Kit, 25U328 on page No. 37. Make sure
parts are thoroughly cleaned. Refer to the fastener
torque settings in the Technical Specifications on
page No. 50. Suitable lubricant and thread locking
compound should also be available.
508
510
Swivel Housing Assembly
NOTE: For general sequence of swivel housing
assembly refer to FIG. 20.
NOTE: Medium strength thread locker used for this
assembly is Loctite® 242 or equivalent. Anti seize
lubricant used for this assembly is Loctite® 77164 or
equivalent.
1. Insert support ring (510) into the larger bore end of
the swivel housing assembly (511) until the support
ring is square against the internal shoulder.
2. Apply a thin coat of lithium grease onto the outside
of the O-ring on the rotary seal (508). To prevent
damage to the Rotary seal O-ring insert into the
bore of the swivel housing (511) at an angle. Make
sure that the O-ring does not tear against the inlet
opening and push the rotary seal against the
support ring (510). See side view FIG. 25.
20
FIG. 21
3. Insert material distributor ring (509) into the bore of
the swivel housing (511). It is recommended to use
the Material Seal Insertion/Removal Tool,
17V972 on page No. 38 and a soft faced mallet.
Push the material distribution ring (509) and rotary
seal (508) fully to the bottom of the bore.
3A8476E
Repair
4. Apply a thin coat of lithium grease onto the outside
of the next O-ring on the rotary seal (508). To
prevent damage to the Rotary seal O-ring insert
into the bore of the swivel housing (511) at an
angle. Make sure that the O-ring does not tear
against the weepage port and push the rotary seal
against the material support ring (509). See top
view FIG. 25.
508
504
506
509
505
505
506
FIG. 24
511
FIG. 22
5. Insert weepage distributor ring (507) into the bore
of the swivel housing (511). It is recommended to
use the Material Seal Insertion/Removal Tool,
17V972 on page No. 38 and a soft faced
mallet.Push the weepage distributor ring and rotary
seal (508) fully against the material support ring
(509). See FIG. 23.
507
7. Apply a thin coat of lithium grease to the O-rings
(505) and insert into the bore of the swivel housing
(511). Apply anti seize to M6 flathead socket
screws (503) and thread in finger tight. See FIG. 25.
8. Push one flange bearing (502) into the swivel
housing (511), and one flange bearing (502) into the
air distribution ring bearing (504). See FIG. 25.
9. Install dust seal ring (501) around the outside
surface of the air distribution ring bearing (504). See
FIG. 25.
508
502
504
501
619
502
511
FIG. 23
6. Install the O-rings (505) and air seals (506) onto the
air distribution ring bearing (504). See FIG. 24.
3A8476E
503
511
FIG. 25
Center Body Assembly
1. Apply a thin coat of lithium grease to the sealing
diameters of the center body (301) and insert into
the swivel housing assembly (511).
21
Repair
2. Align the four access holes in the center body (301)
with the M6 flathead socket screws (503) in the
swivel housing assembly (511). Torque fasteners to
80 in-lb (9.0 N•m).
501
3. Rest the turnbuckle locking nut (101) on the
threaded end of the center body (301) but do not
thread on.
619
301
1. Apply a thin coat of lithium grease to the adapter
gasket (102) and install into the end of the center
body (301).
2. Apply anti seize to lubricant to threads of center
body (301) and long tube assembly (503).
511
503
Material Tube Assembly
4. Align and insert the pins on the end of the long tube
assembly (103) into the central body (301). Turn the
turnbuckle nut clockwise as seen facing the swivel
housing so that the threads of the long tube
assembly (103) and center body engage
simultaneously. Torque the nut to 75 ft-lb (101.69
N•m). See FIG. 28.
503
FIG. 26
301
3. With a soft face mallet, gently tap the center body
(301) into the swivel housing assembly (511) to
ensure the center body is positioned against the
flange bearing (502).
4. Slide the lock ring assembly (201) onto the shank of
the center body (301) and into place against the
flange bearing (502). Ensure that the pin in the one
half of the lock ring (201) is engaged in the hole of
the washer (202).
5. Apply anti seize to the two M5 SHCS screws (203)
and torque to 57.5 in-lb (6.5 N•m). See FIG. 27.
504
102
103
101
FIG. 28
Nozzle Group Assembly
201
1. Install adapter gasket (102) into the end of the long
tube assembly (103). Install valve shut off bearing
(104) onto the ball shut off needles (418).
203
NOTE: The open end of the valve shut off bearing (104)
must towards the dispensing nozzles.
202
511
FIG. 27
22
2. Apply anti seize lubricant to the threads of the long
tube assembly (103) and the 3 head adapter
assembly (105).
3. Rest the turnbuckle locking nut (101) on the
threaded end of the long tube assembly (503) but
do not thread on.
301
NOTE: Refer to Nozzle Head and Material Tube
Assembly on page 28 to determine which 3 head
adapter assembly goes with which model number.
3A8476E
Repair
4. Insert the dowel pins of the 3 head adapter
assembly (105) into the long tube assembly (103).
Turn the turnbuckle nut clockwise as seen facing
the swivel housing so that the threads of the long
tube assembly (103) and the 3 head adapter
assembly (105) engage at the same time.Torque the
nut to 75 ft-lb (101.69 N•m). See FIG. 29.
103
411
415
412
416
417
413
101
105
102
104
411
FIG. 30
5. Apply a single drop of medium strength thread
locker to the threads of the short and long bearing
seal guides (413 and 414) and screw into the air
cylinder housing (409). Torque to 15 ft-lb (20.34
N•m) See FIG. 31.
FIG. 29
Air Cylinder Section Assembly
409
1. Install O-rings (415) and then split ring seals (416)
onto the short bearing seal guide (413) and the long
bearing seal guide (414).
2. Install one needle packing seal (411) into the short
and long bearing seal guides (413 and 414) O-ring
end. Open spring side of needle packing seals need
to face outwards.
3. Press the lower bearing (417) into the O- ring end of
the short and long bearing seal guides (413 and
414).
4. Insert two needle packing seals (411) into each
upper bearing (412).Open spring side of needle
packing seals need to face outwards on either side
of the upper bearing. Insert this assembly into the
threaded end of the bearing seal guides (413 and
414). See FIG. 30.
NOTE: FIG. 30 shows a short seal bearing guide (413)
however both long and short guides are assembled the
same.
3A8476E
413
414
FIG. 31
6. Apply a thin coat of lithium grease to the ball shut
off needles (418) and insert through the short and
long bearing seal guides (413 and 414).
7. Install O-rings (407) and guide rings (406) onto
pistons (404).
8. Place pistons (404) onto ball shut off needles
(418FIG. 29the bores of the air cylinder housing
(409) until the pistons bottom out in the bores of the
air piston housing. See FIG. 32.
23
Repair
409
418
413
414
402
404
405
404
410
408
A
405
407
406
418
FIG. 32
9. Install springs (403) and cylinder cover (402). Install
M4 SHCS screws (401) through cylinder cover into
air cylinder housing (409). Apply anti seize to
screws (401), and tighten down M4 SHCS screws
(401) evenly to compress springs without binding
assembly. Torque M4 screws to 29.2 in-lb (6.5
N•m). See FIG. 33.
402
403
FIG. 34
Connection Housing Assembly
1. Apply a thin coat of lithium grease to O-ring (613)
and locate it on the swivel housing (511). Locate the
SST single inlet adapter (602) on the dowel pins
and place onto the swivel housing (511). Apply anti
seize to the four M5 SHCS screws (601) and torque
to 57.5 in-lb (6.5 N•m).
2. Apply a thin coat of lithium grease to the seal on the
1/8 in. BSPP elbow fitting (512). See FIG. 35.
409
601
401
602
613
511
FIG. 33
10. Apply a thin coat of lithium grease to the air gaskets
(410) and insert into the center body (301).
11. Apply a thin coat of lithium grease to O-rings (415)
and split ring seals (416). Insert the air cylinder
assembly into the center body (301). Apply anti
seize onto the M5 screws (408) and torque to 57.5
in-lb (6.5 N•m).
NOTE: The dimple (A) in the face of the center body
(301) lines up with the long bearing seal guide (414).
See FIG. 34.
24
512
FIG. 35
3. Attach inner cover (513) to the swivel housing
assembly (511) with two M3 flathead screws (515)
and torque to 8 in-lb (0.9 N•m).
4. Apply a thin coat of lithium grease to air gasket
(514). Locate air valve manifold (516) dowel pins
onto the swivel housing assembly (511). Apply anti
seize and insert two M3 SHCS fastener screws
(517) and torque to 8 in-lb (0.9 N•m).
3A8476E
Repair
5. Attach air valves (518) with their included captured
screws onto the air valve manifold (516). Install
solenoid valve cable connections (617) to air valves.
See FIG. 36 page 25.
610
609
607
602
611
516
514
608
513
612
517
515
518
617
FIG. 36
6. Apply a thin coat of lithium grease to the threads of
the M10 hex head cap screw (608) and 10MM seal
washer (607). Apply a thin coat of lithium grease to
the threads of the SST M10 plug (612) and copper
washer (611) and install into the and install into the
SST single inlet adapter (602). Torque to 15 ft-lb
(20.34 N•m). If sensors are an option, apply a thin
coat of lithium grease to the threads of the RTD
sensor (609) and pressure transducer (610) if used
and their 10MM seal washers (607). Install the
sensors and torque to 15 ft-lb (20.34 N•m).
3A8476E
FIG. 37
7. Connect solenoid valve cable connections (617)
and if equipped, sensor wires from the RTD sensor
(609) and /or pressure transducer (610) to the dual
cable connector (614). See 5 Pin - No Sensor for
25T991 and 25T994 on page 47 and 5 Pin and 8
Pin Connections for Temperature and Pressure
Sensors. Model No. 25T992, 25T993, 25T995 and
25T996 page No. 48.
8. Install dual cable connector (614) into dual
connector bracket (616) and tighten nuts. Apply
anti seize and attach connector bracket to the
swivel housing assy (511) with two M5 SHCS
screws (615) and torque to 57.5 in-lb (6.5 N•m).
See FIG. 38.
25
Repair
Testing Before Installation
615
If the SST Switch 3D Gun has been assembled after a
major repair or maintenance operation, it is
recommended to perform a function test before the
SST Switch 3D Gun is returned to production.
614
616
A minimum level of function test is to connect the
compressed air supply and check for air leakage by
opening each of the solenoid valves (613) manually.
The cable connections can be checked using an
Ohm-meter to test the connections from the plug to the
terminals and to make sure that there are no
short-circuits.
FIG. 38
9. Install cover plates including the outer blue cover
(520), two side blue covers (605) and top blue cover
(606) with twelve M3 BHCS screws (514) torqued to
12 in-lb (1.35 N•m).
10. Apply a thin coat of lithium grease to the 1/2 in.
BSPP washer seal (603) and threads of the
customer supplied inlet fitting. Thread into the SST
single inlet adapter (602) and torque to Torque to
15 ft-lb (20.34 N•m). See FIG. 39 page 26.
519
605
If the SST Switch 3D Gun is tested offline with
material pressure applied, to avoid skin injection
always keep clear of the nozzles when test spraying.
Make a last check on all assembly screws and then
follow the Installation instructions on page 8 to mount
the SST Switch 3D Gun on the robot.
606
603
602
Customer
supplied
inlet fitting
605
520
FIG. 39
26
3A8476E
Parts
Parts
Parts Key
D
F
B
C
E
A
FIG. 40
Key:
A. Nozzle Head and Material Tube Assembly page No. 28
B. Lock Ring Assembly page No. 29
C Central 3D Body page No. 29
D.Connection Housing page No. 32
E. Swivel Chamber page No. 31
F. Modular Air Cylinder Assembly 25U924 page No. 30
3A8476E
27
Parts
Nozzle Head and Material Tube Assembly
101
103
102
104
105
102
101
Nozzle Head and Material Tube Assembly Parts List.
Ref.
Part
Description
101
102
103
104
15N245
17V839
25U248
15N117
25T942
25T990
NUT, turnbuckle, locking
GASKET, adapter
TUBE, 3D long, assembly
BEARING, valve shut off
ADAPTER, 3 head, assy, 0,45,75
ADAPTER, 3 head, assy, 0,45,90
105
28
Model Number
25T991 25T992 25T993 25T994
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
25T995
2
2
1
1
25T996
2
2
1
1
1
1
3A8476E
Parts
Lock Ring Assembly
201
Lock Ring Parts List
Ref.
201*
202
203
203
202
Part
Description
17V910 RING, lock assembly
17V817 WASHER
117026 SCREW, M5x12, SHCS
Qty.
1
1
2
* Assembly 17V910 includes parts 17V817 and 117026.
Central 3D Body
25U924
Reference
301
302
303
Central Body List
Ref.
301
302
303
3A8476E
Part
Description
15N233 BODY, center, 3D
108326 SCREW. M5x20
15N283 GASKET, air
Qty.
1
3
3
29
Parts
Modular Air Cylinder Assembly 25U924
402
401
403
406
412
407
404
411
413
405
409
411
415
414
416
411
417
418
Modular Air Cylinder Assembly 25U924 Parts List
Ref.
401
402
403
404
405
406
407
409
411
412
413
414
415
416
417
418
30
Part
116474
15N539
133950
15N537
105672
17V832
17V812
25U247
17V813
15N249
15N251
15N252
556554
2000132
15N250
26D872
Description
SCREW, SHCS, M4x20
CAP, valve, air cylinder
SPRING
PISTON
SCREW, set, shc
RING, guide
O-RING
HOUSING, air cylinder
PACKING, needle
BEARING, upper
GUIDE, seal, bearing, short
GUIDE, seal bearing, long
O-RING, -011 viton-A 75 duro
SEAL, split ring
BEARING, lower
NEEDLE, ball shut off
Qty.
3
1
9
3
6
3
3
1
9
3
2
1
3
3
3
3
3A8476E
Parts
Swivel Chamber
503
502
504
505
501
506
507
513
509
514
510
511
512
515
508
516
508
517
518
519
502
520
Central Body Assembly Parts List
Ref. Part
501
502
503
504
505
506
507
508
509
510
511
512
513
Description
17V893 RING, dust, seal
17V828 BEARING, flange
SCREW, mach, flathd, socket,
133492
M6x16
25U245 RING, air distribution, bearing
17V821 O-RING
17V855 SEAL, air
17V825 RING, distributor, weepage
17V895 SEAL, rotary
15N116 RING, distributor, material
17V827 RING, support
15N113 HOUSING, swivel, assy
FITTING, elbow, swvl, 1/8 BSPP,
17V816
8mm
17V889 COVER, inner
3A8476E
Qty.
Ref. Part
1
2
514
4
516
1
4
4
1
2
1
1
1
515
517
518
519
520
Description
15N268 GASKET, air
SCREW, M3x0.5x6, flathead, CS,
132555
zinc
25U246 MANIFOLD, air, valve
FASTNER, screw, SHCS,
125609
M3x0.5x10, SS
17V890 VALVE, solenoid, 3/2
132559 SCREW, BHCS, M3x6,hex drive
17V888 COVER, outer, blue
Qty.
1
2
1
2
3
12
1
1
1
31
Parts
Connection Housing
601
602
603
519
605
607
606
608
613
607
611
612
605
609
615
614
610
616
617
32
3A8476E
Parts
Connection Housing Parts List
519
605
606
607
132559
17U843
17V844
17V808
603
608
609
610
611
612
613
614
615
616
617
3A8476E
133162
17V795
18C869
18C870
17V807
17V815
115719
15N126
ADAPTER, inlet, single, SST
SEAL, washer, 1/2 in. BSPP, SST
SCREW, BHCS, M3x6, hex drive
COVER, side, blue
COVER, top, blue
SEAL, washer, 10MM
SCREW, hex head cap, M10x12,SST
SENSOR, RTD
TRANSDUCER, pressure,.5-4.5V,350B
WASHER,10/14x1, copper
PLUG, M10x1,SST
PACKING,O-Ring, 015,viton
CONNECTOR, dual cable
SCREW, SHCS, M5
120885
15N115 BRACKET, connector, dual
17V891 CABLE, connection, solenoid valve
1
1
8
2
1
1
1
1
1
1
1
2
1
3
25T996
25U337
4
25T995
602
SCREW, SHCS, M5x60
25T994
125386
Description
25T993
601
Part
25T992
Ref.
25T991
Quantity Per Model Number
1
1
1
1
1
4
1
8
2
1
4
1
8
2
1
1
2
1
1
1
1
1
1
1
2
1
3
1
1
2
1
3
4
1
8
2
1
1
1
1
1
1
1
2
1
3
4
1
8
2
1
4
1
8
2
1
1
2
1
1
1
1
1
1
1
2
1
3
1
1
2
1
3
33
Kits and Tools
Kits and Tools
LASD Nozzle Assembly Kits 25U016 and 25U017
701
702
706
704
703
705
Apply threadlocker
here
707
FIG. 41
LASD Nozzle Parts List 25U016 and 25U017
Ref.
701
702
703
704
705
706
707
Part
131805
15N123
15N118
15N120
15N119
15N121
25U015
15N124
133267
Description
SCREW, SHC, M4-0.7x10 SS
CLAMP
PLATE, outer, nozzle, 0.5mm,WC
PLATE.outer, nozzle, 0.4mm,WC
SPACER, nozzle, 0.5mm, WC
SPACER, nozzle, 0.4mm, WC
HOUSING, nozzle
NUT, turnbuckle
O-RING,7MM ID X 1.5MM TH,FKM,75A
25U016 25U017
2
1
2
1
1
1
1
2
1
2
1
1
1
1
NOTE: Part number 25U016 uses LASD Nozzle Plate Assembly Kit 25U331. Part number 25U017uses LASD Nozzle
Plate Assembly kit 25U332.
LASD Nozzle Kit Assembly
1. Follow the Pressure Relief Procedure on page 12
before removing or replacing nozzles.
1. Place Nozzle spacer (704) between two WC outer
nozzle plates (703) and line up the notches in the
parts.
3. Place the clamp (702) with the fluid passage notch
facing the fluid passageway and tighten down with
two M4 SHC screws(701). Torque to 29.2 in-lb (3.3
N•m). See FIG. 41.
1. Apply Blue, Medium strength thread locker used for
this assembly is Loctite® 242 or equivalent to the
surface shown in FIG. 41.
2. Place sandwiched pieces against the step of the
housing nozzle (705) lining up the notches with the
locating pin in the housing nozzle.
34
3A8476E
Kits and Tools
LASD Nozzle Plates Assembly
Kits 25U331 and 25U332
Spray Stream Nozzle Parts List
Ref.
Slot Width
801
703
704
Part
17V669
17V670
17V671
17V672
17V673
17V674
17V675
17V676
W in. (mm)
0.012 (0.30)
0.012 (0.30)
0.012 (0.30)
0.012 (0.30)
0.015 (0.38)
0.015 (0.38)
0.015 (0.38)
0.015 (0.38)
L in. (mm)
0.27 (7)
0.31 (8)
0.35 (9)
0.39 (10)
0.31 (8)
0.35 (9)
0.39 (10)
0.43 (11)
NOTE: Kits include nozzle and O-ring.
1
1
2
101
901
15N121
15N120
Nozzle Assembly,
0.4mm 2
25U331 0.4mm
Nozzle Assembly,
0.5mm
25U332 0.5mm
15N119
15N118
Description
Slot
Width
Part
Number
LASD Nozzle Plates Assembly Kits 25U331
and 25U332 Parts List
Spray Stream Adapter Kit,
25U338
1
707
902
Spray Stream Nozzle Kits
L
707
NOTE: Apply anti seize to retaining nut (901) threads
before assembly.
Spray Stream Adapter Kit Parts List,
25U338
Ref.
W
901
902
707
3A8476E
Part
Description
15N229 NUT, retaining
ADAPTER, nozzle, sealer, spray,
25U305
assembly
O-RING,7MM ID X 1.5MM
133267
TH,FKM,75A
Qty.
1
1
2
35
Kits and Tools
Nozzle Plug Kit, 25U333
Male to Male M12 Connector
Kit, 15N436
101
901
1401
707
903
NOTE: Apply anti seize to retaining nut (901) threads
before assembly.
Nozzle Plug Kit Parts List, 25U333
Ref.
901
903
707
Part
Description
15N229 NUT, retaining
15N318 PLUG, nozzle
O-RING,7MM ID X 1.5MM
133267
TH,FKM,75A
Qty.
1
1
1
PCF to 3D Gun Cable Kit 25U441
NOTE: Use this connector kit when the robot cable has
a female connector that needs to match the SST Switch
3D Gun female connector.
Male to Male M12 Connector Kit Parts List,
15N436
Ref.
1401
Part
Description
Qty.
CONNECTOR, M12 5P, male to
15N436
1
male
1001
1002
PCF to 3D Gun Cable Kit Parts List
Ref.
Description
Qty.
1001 121612 CONNECTOR, thru, M12, MXF,
1
CABLE, GCA, M12 5P, M/F. ).5M
1002 25U014
1
LG
36
Part
3A8476E
Kits and Tools
Yearly Service Kit, 25U328
613
410
Service Kit, 25T485
505
603
506
508
202
401
502
415
406
102
613
416
Service Kit Parts List, 25T485
407
Ref.
411
514
412
417
401
613
603
104
Part
17V839
15N117
17V817
17V832
17V812
15N283
17V813
15N249
556554
2000132
15N250
17V828
17V821
17V855
17V895
15N268
115719
Description
GASKET, adapter
BEARING, valve shut off
WASHER
RING, guide
O-RING
GASKET, air
PACKING, needle
BEARING, upper
O-RING, -011 viton-A 75 duro
SEAL, split ring
BEARING, lower
BEARING, flange
O-RING
SEAL, air
SEAL, rotary
GASKET, air
PACKING,O-Ring, 015,viton
Qty.
1
1
1
3
3
3
9
3
3
3
3
2
4
4
2
1
1
NOTE: Service Kit 25U328 is provided for preventive
maintenance done on the SST Switch 3D Gun once a
year based on average usage.
3A8476E
Description
17V817 WASHER, lock ring
17V890 VALVE, solenoid
17V893 RING, dust seal
Qty.
1
3
1
NOTE: Service Kit 25t485 is provided for preventive
maintenance done on the SST Switch 3D Gun once
every two years based on average usage.
Service Kit Parts List, 25U328
Ref.
102
104
202
406
407
410
411
412
415
416
417
502
505
506
508
514
613
Part
Ball Shut Off Needle Kit, 25U330
417
412
411
418
Ball Shut Off Needle Service Kit Parts List,
25U330
Ref.
411
412
417
418
Part
17V813
15N249
15N250
26D872
Description
PACKING, needle
BEARING, upper
BEARING, lower
NEEDLE, ball shut off
Qty.
3
1
1
1
37
Kits and Tools
Bearing and Seals Kit, 25U329
8 Pin Cable Kit, 15N265
101
411
1201
412
417
Bearing and Seals Kit Parts List, 25U329
Ref.
411
412
417
Part
Description
17V813 PACKING, needle
15N249 BEARING, upper
15N250 BEARING, lower
8 Pin Cable Kit Part List, 15N265
Qty.
9
3
3
5 Pin Cable Kit, 17V857
Ref.
Part
Description
1101 17V857 CABLE, M12, 5 pin
38
Qty.
1
Material Seal Insertion/Removal
Tool, 17V972
1301
1101
5 Pin Cable Kit Part List, 17V857
Ref.
Part
Description
1201 15N265 CABLE, M12, 8 pin
Qty.
1
Material Seal Insertion/Removal Tool Part
List, 17V972
Ref.
Part
Description
1301 17V972 TOOL, mounting
Qty.
1
3A8476E
Performance Charts
Performance Charts
Pattern Width Versus Spray Stream Style Nozzle Sizes
The following tests were performed using a typical PVC
seam sealer. See FIG. 42.
• 600,000 centipose
• Specific gravity 0.82
The graph below shows a fixed flow rate of 9.4 cc / sec
and a fixed robot speed of 300 mm / sec.
Pattern Width Versus Nozzle Sizes
22.00
17V676
Pattern Width (mm)
21.00
17V674
17V675
17V672
20.00
17V673
Nozzle
Width
0.03 mm
17V671
19.00
17V670
17V669
0.038 mm
18.00
17.00
Smaller
Orifice Size
Larger
16.00
FIG. 42
3A8476E
39
Performance Charts
Material Pressure Versus Spray Stream Style Nozzle Sizes
The graph below represents the pressures for each tip to achieve the width shown in the Pattern Width Versus Spray
Stream Style Nozzle Sizes graph. See FIG. 42. Pressure data may be useful when choosing a tip size due to the pressure
limitation of the metering equipment. See FIG. 43.
Material Pressure Versus Nozzle Sizes
2,000
1,800
17V670
17V669
17V671
Pressure in PSI
17V672
1,600
17V673
Nozzle
Width
0.03 mm
1,400
17V674
1,200
0.038 mm
17V675
17V676
1,000
800
Smaller
Orifice Size
Larger
600
FIG. 43
40
3A8476E
Performance Charts
Pattern Height / Width Versus cc/sec for Spray Stream Style
Nozzles
30
3.0
25
2.5
14.1 cc/sec
20
2.0
11.8 cc/sec
9.4 cc/sec
15
1.5
10
1.0
5
0.5
17V676 Nozzle
Pattern Height (mm)
Pattern Width (mm)
Pattern Height / width Versus cc/sec
Width
Height
0
0
1
2
3
FIG. 44
Bead Pattern Spray Stream
Style Nozzle
Distance from the target affects the quality of the
boundary layer between the sealer and the metal
surface. Excessive distance can trap air in-between the
bead and the metal surface, which could result in
moisture penetrating between the layers. See FIG. 45**
Correct distance for
clean bead pattern.
Excessive distance results in
faulty bead pattern.*
FIG. 45
* Your results may vary.
** Heat curing may reduce this effect
3A8476E
41
Performance Charts
Pattern Thickness Versus flow Rate and Robot Speed for 0.50 mm
LASD Nozzle, 25U016
NOTE: Typical robot speed is 300mm/sec. Bead
Thickness is determined by robot speed.
0.50 mm LASD Tip
145
Pattern Width (mm)
135
125
115
5000 cc/m in.
105
4000 cc/m in.
3000 cc/m in.
95
85
Better Quality
Bead
75
65
45
55
65
75
Lesser Quality
Bead
85
95
105
Dispense Height (mm)
115
125
FIG. 46
42
3A8476E
Performance Charts
Pattern Thickness Versus flow Rate and Robot Speed for 0.40 mm
LASD Nozzle, 25U017
NOTE: Typical robot speed is 300mm/sec. Bead Thickness is determined by robot speed.
0.40 mm LASD Tip
175
165
Pattern Width (mm)
155
145
135
5000 cc/m in.
125
4000 cc/m in.
115
3000 cc/m in.
105
95
Better Quality
Bead
85
75
45
55
65
75
Lesser Quality
Bead
85
95
Dispense Height (mm)
105
115
125
FIG. 47
Spray Pattern LASD Nozzle
The width of the bead is consistent with the height
above the surface. The thickness of the bead depends
on the speed of the robot. See FIG. 48.
3.98 in
100 mm
FIG. 48
3A8476E
Bead
thickness
_ 0.2 in
3.98 +
_ 5 mm
100 +
43
Dimensions
Dimensions
4.88 in
124 mm
4.5 in OD
115 mm
2.50 in
63.5 mm
14 in
355.6 mm
19.64 in
498.9 mm
0.87 in
22.1 mm
FIG. 49 Side View Typical for 25T991, 25T992, 25T993, 25T994, 25T995, 25T996 With LASD Nozzles
4.88 in
124 mm
4.5 in OD
115 mm
2.50 in
63.5 mm
13 in
330.2 mm
18.64 in
473.46 mm
0.87 in
22.1 mm
FIG. 50 Side View Typical for 25T991, 25T992, 25T993, 25T994, 25T995, 25T996 With Spray Stream Nozzles
44
3A8476E
Dimensions
120°
4 mm dia.
40°
1.65 in
42 mm
4.05 mm dia. +/- 0.03
2 Holes on 105 mm dia. BC
4.45 in dia.
113 mm
M6 THRU
3 Holes EQ SP
on 103 mm dia. BC
FIG. 51 Robot Mounting Flange Typical for all SST Switch 3D Guns
3A8476E
45
Wiring Diagrams
Wiring Diagrams
5 Pin and 8 Pin Connector
5 Pin Cable Schematic
T1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
2
1
5
3
X1
X2
2
1
1
3
4
5
7
2
3
6 5 4
8
FIG. 52
T1
1
X1
2
3
5
7
9
10
11
12
13
14
46
Wire Color
4
Yellow
2
Brown
1
White
5
Grey
6
8
6
8
X2
3
4
7
3
2
Pink
Green
Wire Color
Brown
White
Blue
Black
Grey
8 Pin Cable Schematic
Blue
Blue
White
Brown
4
Black
4
Pin No.
1
2
3
4
5
Red
1
4
4
2
3
7
8
6
4
Black
Black
1
5
Pin No.
1
2
3
4
5
6
7
8
Wire Color
White
Brown
Green
Yellow
Grey
Pink
Blue
Red
3A8476E
Wiring Diagrams
5 Pin - No Sensor for 25T991 and 25T994
solenoid
Y3
solenoid
Y2
T1
solenoid
Y1
WIRING DIAGRAM
X1
T1
Y1
1
2
3
10
11
Y2
4
9
X1
5
12, 13, 14
Y3
SOLENOID WIRING SCHEMATIC
FIG. 53 Schematic for 25T991 and 25T994
NOTE: See Electrical Components page 51 for
specifications.
3A8476E
47
Wiring Diagrams
5 Pin and 8 Pin Connections for Temperature and Pressure
Sensors. Model No. 25T992, 25T993, 25T995 and 25T996
Pressure Sensor
See Note.
RED
GRN
BLK
WHT
Temperature Sensor
See Note.
T1
X2
RED
RED
WHT
WHT
X1
X1
1
2
3
4
5
Solenoid
T1
10
11
Y2
Y1
9
Solenoid
Y3
Y3
Y2
Pressure X-Ducer
1
7
8
White
T1
2
Red
3
6
8
7
X2
5
White
5
4
White
-Supply
4
Green
-Output
Red
+Supply
6
Black
+Output
T1
3
Red
2
1
Y1
WIRING DIAGRAM
SOLENOID WIRING SCHEMATIC
X2
Solenoid
12, 13, 14
Temperature sensor
SENSOR WIRING SCHEMATIC
FIG. 54 Schematic for 25T992, 25T993, 25T995 and 25T996
NOTES:
1. For 25T993 and 25T996 use pressure transducer
and temperature sensor.
2. For 25T992 and 25T995 use temperature sensor
only.
48
3. See Electrical Components table page 51 for
specifications.
3A8476E
Wiring Diagrams
3A8476E
49
Technical Specifications
Technical Specifications
SST Switch 3D Gun
Maximum fluid working pressure
Maximum fluid temperature
Minimum air pressure
Maximum air pressure
Length
Swivel height
Mounting Arrangement
Air ports
Solenoid valve type
Voltage
Material Inlet
All Models
Torque Requirement
M 2.5, screw
M 3, Screw
M 4, Screw
M 5, Screw
M 6, Screw
M 8, Screw
1/2 in. BSPP, Nipple
(901) NUT, retaining
(101) NUT, turnbuckle, locking
Sensors
Shaft Rotational Load
All models
Nozzle Angles
25T991, 25T992, 25T993
25T994, 25T995, 25T996
Weight
All Models
Wetted Parts
All Models
50
US
3350 psi
176° F
80 psi
Metric
23.1 MPa, 231 bar
80° C
0.55 MPa, 5.5 bar
0.8 MPa, 8bar
116 psi
Varies by nozzle type; maximum: 20.92 in. / 532 mm
6 in.
150 mm
Robot mounting flange
0.3 in
8 mm
Mono stable 3/2 port
24 VDC
Male 1/2 in. BSPP connector
8 in-lb
12 in-lb
33 in-lb
57 in-lb
80 in-lb
230 in-lb
15 ft-lbs
15 ft-lbs
75 ft-lbs
100 in-lbs
0.9 N•m
1.35 N•m
3.7 N•m
6.4 N•m
9 N•m
26 N•m
20.34 N•m
20.34 N•m
101.69 N•m
11.3 N•m
62-159.3 in-lb, 0 - 3350 psi
7-18 N•m 0 - 230 bar
0 | 45 | 75|
0 | 45 | 90|
16.3 lbs (7.4 Kg.)
UHMW PE, Stainless Steel, Tungsten Carbide, Acetal, FKM,
PTFE, Urethane
3A8476E
Technical Specifications
Electrical Components
Part Number Description
Sensor, Temperature
17V829
Transducer (350 bar, 5000 psi)
15N089
Solenoid
17V890
Electrical Rating
100 ohm platinum rtd sensor
10/30 Vdc input, 0.5 to 4.5 Vdc output
24 Vdc: 2.88W
California Proposition 65
CALIFORNIA RESIDENTS
WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.
3A8476E
51
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification
of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be
returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or
workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental
or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder,
or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered
into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu
que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés,
à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
Sealant and Adhesive Dispensing Equipment
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor, go to www.graco.com, or call to identify the nearest
distributor.
If calling from the USA: 1-800-746-1334
If calling from outside the USA: 0-1-330-966-3000
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 3A8476
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2020, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision E, July 2023
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