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.

3A8476B

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.

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:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

3A8476B 5

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 coating (UBC).

• Underbody sealing (UBS).

• Seam sealing, ISS, HEM.

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.

3A8476B

Component Identification

Main Assembly

F IG . 1

Key:

A. Nozzle Head and Material Tube Assembly

B. Lock Ring Assembly

C. Central Body Assembly

D. Connection Housing

E. Swivel Chamber

F. Rod Shutoff Valve and Air Cylinder Assembly

Component Identification

3A8476B 7

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.

Material hoses: Use only electrically conductive hoses with a maximum of 100 ft. (30.5 m) combined hose

8 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.

3A8476B

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 F IG . 2.

M6 x 20 hex socket screws

6mm guide pins

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. 35, or

Spray Stream Nozzle Kits and Spray Stream Adapter Kit, 25U338 page No. 36

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).

2. Place small end of nut (706) against the 3 head adapter assembly (105) but do not tighten thread.

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

F IG . 4.

F IG . 2

Anti-Rotation Brackets

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 F IG . 3 for installation example and page 32 for

swivel housing part reference.

Anti-Rotation

Brackets

F IG . 3

511

707

706

705

105

F IG . 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.

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 F IG . 5.

3A8476B 9

Installation

105

Customer must install air bleed valve between air supply

and SST Switch 3D Gun connection. See F IG . 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 F IG . 7.

512

511

Customer supplied 8 mm air hose.

707

902

801

901

F IG . 5

Cable Connections

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 F IG . 6.

See the

Models table page 3, for the cable type needed

for your SST Switch 3D Gun mode.

1001 and 1003 if equipped with sensors

Connect to robot control cabinet

(not shown).

F IG . 6

Hose Connections

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.

Customer supplied bleed valve

Customer supplied material hose.

F IG . 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 37 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).

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 F IG . 8 page 11.

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 3A8476B

Installation

D A

F IG . 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 F IG . 9.

1003

Check for Free Movement

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.

Flush SST Switch 3d Gun Before Using

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.

Leak Test and Priming for Use

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 32, 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.

1001

1002

F IG . 9

3A8476B 11

Operation

Flush the SST Switch 3D Gun

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

40 to help determine settings of 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

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 F IG . 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 F IG . 7).

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.

12 3A8476B

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.

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.

Maintenance Table

Task

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

Schedule

Daily

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

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

Kit, 25T485 is provided for maintenance once every two years (see page 38). 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.

3A8476B 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 3A8476B

Troubleshooting

NOTE: Follow

Pressure Relief Procedure , page 12,

before checking or repairing the SST Switch 3D Gun.

Problem

Material leaks from SST Switch 3D

Gun weep hole.

SST Switch 3D Gun does not shut off.

SST Switch 3D Gun does not open or dispense material.

Cause

Air leaks from SST Switch 3D Gun.

Worn gasket.

Loose or worn air connections.

Material leaks from front of SST

Switch 3D Gun.

Worn O-rings.

Loose end cap screws.

Tip seal or seats are worn.

Loosen the retaining set screws located in the piston.

Solution

Replace gasket.

Tighten air connections.

Replace O-rings.

Tighten screws.

Replace seat seals.

Replace nozzle head assembly

Replace rod shutoff valve.

Remove nozzle head. Obstruction inside SST Switch 3D

Gun.

Seals not installed correctly.

Seals are worn.

Loose air connections or air supply turned off.

Worn rod shutoff valve-seat interface.

Broken piston, debris in air cylinder, or debris inside the fluid section.

Spring broken or not installed correctly.

Check rotary seals and replace as needed.

Tighten air connections and turn on air.

Replace nozzle head and rod shutoff valve rod shutoff valve seat.

Disassemble SST Switch 3D Gun.

Check and if necessary replace, piston, piston rod, and O-rings.

Disassemble SST Switch 3D Gun.

Check spring and replace if necessary.

Tighten air connections.

Loose air connections or air supply turned off.

Broken rod, piston, or tip. Debris or cured material inside fluid section.

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

3A8476B 15

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.

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.

F IG . 11

7. The SST Switch 3D Gun can be now be removed from the robot.

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 F IG . 10.

1001 and

1003 if equipped with sensors

Customer supplied 8mm air hose.

Customer supplied material hoses

F IG . 10

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

F IG . 11.

16 3A8476B

SST Switch 3D Gun

Disassembly

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

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.

Repair

Washer seals should be replaced with new ones

before reassembly. See F IG . 13.

614

615

607

616

609

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 F IG . 12.

605

606

605

617

610

518

F IG . 13

Remove the Material Inlet Block

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 F IG . 14.

519

520

F IG . 12

Remove Electrical Components

1. Disconnect solenoid valve cable connections (617) from solenoid valves (518).

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.

Customer supplied inlet fitting

F IG . 14

603

601

602

613

3A8476B 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.

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 F IG . 15.

410

408

401-417

514

516

517

515

513

409

404

403

418

401

407

405

406

402

F IG . 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.

8. Remove the O-rings (415 and 416) and discard.

See F IG . 17.

512

F IG . 15

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.

2. Loosen M3 set screws (405) three turns each and pull ball shut off needles (418) out of the assembly.

See F IG . 16.

3. Extract pistons (404) from air cylinder housing (409)

Discard guide rings (406) and O-rings (407).

411

F IG . 17

411

414

409

412

413

415

417

416

411

18 3A8476B

Repair

Nozzle Adapter 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 3 head adapter assembly (105) away from the 3D long tube assembly (103).

2. Discard adapter gasket (102) and valve shut off

bearing (104). See F IG . 18.

102

103

101

105

104

F IG . 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 3D long tube assembly (103) away from the 3D 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 3D center body (301) with the four M6 screws (503) and loosen the screws.

4. Tap the 3D center body (301) out of the swivel housing assembly (511) using a soft face mallet.

See F IG . 19.

301

101

201

101

103

203

503

102

301

F IG . 19

Swivel Housing Disassembly

1. Dust seal ring (501) can be removed from the air distribution ring bearing (504)

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 F IG . 20 on page

20.

3A8476B 19

Repair

501

507

502

503

504

509

510

511

508 502

506

505

F IG . 20

SST Switch 3D Gun Assembly

NOTE : Before assembly, It is recommended to have

Yearly Service Kit, 25U328 on page No. 38. Make sure

parts are thoroughly cleaned. Refer to the fastener torque settings in the

Technical Specifications

page No. 50. Suitable lubricant and thread locking

compound should also be available.

Swivel Housing Assembly

NOTE: For general sequence of swivel housing

assembly refer to F IG . 20.

NOTE: Medium strength thread locker used for this assembly is Loctite equivalent.

® 242 or equivalent. Anti seize lubricant used for this assembly is Loctite ® 77164 or

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 F IG . 25.

511

508

510

F IG . 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. 39 and a soft faced mallet.

Push the material distribution ring (509) and rotary seal (508) fully to the bottom of the bore.

20 3A8476B

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 F IG . 25.

508 509

504

505

506

505

506

511

F IG . 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. 39 and a soft faced

mallet.Push the weepage distributor ring and rotary seal (508) fully against the material support ring

(509). See F IG . 23.

507 508

F IG . 24

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 F IG . 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 F IG . 25.

9. Install dust seal ring (501) around the outside surface of the air distribution ring bearing (504). See

F IG . 25.

502

504

501 619

502

511

F IG . 23

6. Install the O-rings (505) and air seals (506) onto the

air distribution ring bearing (504). See F IG . 24.

503

F IG . 25

Center Body Assembly

1. Apply a thin coat of lithium grease to the sealing diameters of the center 3D body (301) and insert into the swivel housing assembly (511).

3A8476B 21

Repair

2. Align the four access holes in the center 3D 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).

503

511

501

301

619

503

Material Tube Assembly

1. Install adapter gasket (102) into the end of the center body (301).

2. Apply anti seize to lubricant to threads of center body (301) and long 3D tube assembly (503).

3. Rest the turnbuckle locking nut (101) on the threaded end of the center body (301) but do not thread on.

4. Align and insert the pins on the end of the 3D 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 3D tube assembly (103) and center body engage simultaneously. Torque the nut to 75 ft-lb (101.69

N•m). See F IG . 28.

F IG . 26

3. With a soft face mallet, gently tap the center 3D body (301) into the swivel housing assembly (511) to ensure the center 3D body is positioned against the flange bearing (502).

4. Slide the lock ring assembly (201) onto the shank of the center 3D 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 medium strength threadlocker to the two M5

SHCS screws (203) and torque to 57.5 in-lb (6.5

N•m). See F IG . 27.

F IG . 28

102

101

201

203

301

103

202

511

F IG . 27

301

3A8476B

Air Cylinder Section Assembly

1. Install O-rings (415) then (416) onto the short bearing seal guide (413) and the long bearing seal guide (414).

2. Install one needle packing (411) seal 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 (411) seals 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 F IG . 29.

NOTE:

F IG . 29 shows a short seal bearing guide (413)

however both long and short guides are assembled the same.

411

409

413

414

F IG . 30

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 (418) until the needle bottoms out in the piston. Torque

M3 set screws (405) to 8 in-lb (0.9 N•m).

9. Apply a thin coat of lithium grease to the O-rings

(407) and guide rings (406) and insert pistons into the bores of the air cylinder housing (409) until the pistons bottom out in the bores of the air piston

housing. See F IG . 31.

412

415

416

417

409 413

414

413

404

418

411

F IG . 29

5. Apply 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 F IG . 30.

405

404

418

406

407

F IG . 31

10. Install springs (403) and cylinder cover (402). Install

M4 SHCS screws (401) through cylinder cover into air cylinder housing (409). 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 F IG . 32.

Repair

3A8476B 23

Repair

401

402

403

409

601

602

613

511

F IG . 32

11. Apply a thin coat of lithium grease to the air gaskets

(410) and insert into the 3D center body (301).

12. Insert the air cylinder assembly into the center body

(301). apply medium strength threadlocker 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 3D center body

(301) lines up with the long bearing seal guide (414).

See F IG . 33.

408

402

410

512

F IG . 34

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). Insert two

M3 SHCS fastener screws (517) and torque to 8 in-lb (0.9 N•m).

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 F IG . 35 page 25.

F IG . 33

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 thread locker 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 F IG . 34.

24 3A8476B

514

517

515

516

513

Repair

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 48 and

5 Pin and 8

Pin Connections for Temperature and Pressure

Sensors. Model No. 25T992, 25T993, 25T995 and

25T996 page No. 49.

8. Install dual cable connector (614) into dual connector bracket (616) and tighten nuts. 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 F IG . 37.

615

616 614

617

518

F IG . 35

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).

610

609

607

602

611

F IG . 37

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 F IG . 38 page 26.

612

608

F IG . 36

3A8476B 25

Repair

519

605

603

606

602

103

Customer supplied inlet fitting

605

520

F IG . 38

Nozzle Group Assembly

1. Install adapter gasket (102) into the end of the 3D long tube assembly (103). Install valve shut off bearing (104) onto the ball shut off needles (418).

NOTE: The open end of the valve shut off bearing (104) must towards the dispensing nozzles.

2. Apply anti seize lubricant to the threads of the 3D 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 3D tube assembly (503) but do not thread on.

NOTE:

Refer to Nozzle Head and Material Tube

Assembly on page 29 to determine which 3 head

adapter assembly goes with which model number.

4. Insert the dowel pins of the 3 head adapter assembly (105) into the long 3D tube assembly

(103). Turn the turnbuckle nut clockwise as seen facing the swivel housing so that the threads of the long 3D tube assembly (103) and the 3 head adapter assembly (105) Torque the nut to 75 ft-lb

(101.69 N•m). See F IG . 39.

F IG . 39

102

104

101

105

3A8476B

Testing Before Installation

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.

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.

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.

Repair

3A8476B 27

Parts

Parts Key

F IG . 40

Key:

Nozzle Head and Material Tube Assembly page No. 29

Lock Ring Assembly page No. 30

Central 3D Body page No. 30

Connection Housing page No. 33

Swivel Chamber page No. 32

Needle Shutoff Valve and Air Cylinder Assembly page No. 29

28 3A8476B

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 15N245 NUT, turnbuckle, locking

102 17V839 GASKET, adapter

103 25U248 TUBE, 3D long, assembly

104 15N117 BEARING, valve shut off

105

25T942 ADAPTER, 3 head, assy, 0,45,75

25T990 ADAPTER, 3 head, assy, 0,45,90

Model Number

25T991 25T992 25T993 25T994 25T995 25T996

2 2 2 2 2 2

1 1 1

3A8476B 29

Parts

Lock Ring Assembly

201

203

202

Lock Ring Parts List

Ref.

Part Description

201* 17V910 RING, lock assembly

202 17V817 WASHER

203 117026 SCREW, M5x12, SHCS

Qty.

* Assembly 17V910 includes parts 17V817 and 117026.

Central 3D Body

301

Central Body List

Ref.

Part Description

301 15N233 BODY, center, 3D

Qty.

30 3A8476B

Needle Shutoff Valve and Air Cylinder Assembly

402

401

412

403

404

405

406

407

411

413

411

414

415

416

411

417

408

409

410

Parts

418

Needle Shutoff Valve and Air Cylinder Assembly Parts List

Ref.

Part Description

401 116474 SCREW, SHCS, M4x20

402 17V818 COVER, cylinder

403 17V830 SPRING

404 17V826 PISTON

405 129647 SCREW, set, sh, cup, M3X4mm, SST

406 17V832 RING, guide

407 17V812 O-RING

408 108326 SCREW. M5x20

409 25U247 HOUSING, air cylinder

410 15N283 GASKET, air

411 17V813 PACKING, needle

412 15N249 BEARING, upper

413 15N251 GUIDE, seal, bearing, short

414 15N252 GUIDE, seal bearing, long

415 556554 O-RING, -011 viton-A 75 duro

416 555681 O-RING, -010 viton-A 75 duro

417 15N250 BEARING, lower

418 25T981 NEEDLE, ball shut off

Qty.

3A8476B 31

Parts

Swivel Chamber

502

501

513

514

516

515

517

518

519

520

503

504

505

506

507

509

510 511

512

508

502

Central Body Assembly Parts List

Ref. Part Description

501 17V893 RING, dust, seal

502 17V828 BEARING, flange

503 133492

SCREW, mach, flathd, socket,

M6x16

504 25U245 RING, air distribution, bearing

505 17V821 O-RING

506 17V855 SEAL, air

507 17V825 RING, distributor, weepage

508 17V895 SEAL, rotary

509 15N116 RING, distributor, material

510 17V827 RING, support

511 15N113 HOUSING, swivel, assy

512 17V816

FITTING, elbow, swvl, 1/8 BSPP,

8mm

513 17V889 COVER, inner

514 15N268 GASKET, air

Qty.

Ref. Part Description Qty.

515 132555

SCREW, M3x0.5x6, flathead, CS, zinc

516 25U246 MANIFOLD, air, valve

517 125609

FASTNER, screw, SHCS,

M3x0.5x10, SS

520 17V888 COVER, outer, blue

518 17V890 VALVE, solenoid, 3/2 3

519 132559 SCREW, BHCS, M3x6,hex drive 12

32 3A8476B

Parts

Connection Housing

601

605

602

606

613

614

611

612

615

603

519

605

607

608

607

609

610

616

617

3A8476B 33

Parts

Connection Housing Parts List

Ref. Part

601

602

603

611

612

613

614

615

616

617

519

605

606

607

608

609

610

Description

125386 SCREW, SHCS, M5x60

25U337 ADAPTER, inlet, single, SST

133162 SEAL, washer, 1/2 in. BSPP, SST

132559 SCREW, BHCS, M3x6, hex drive

17U843 COVER, side, blue

17V844 COVER, top, blue

17V808 SEAL, washer, 10MM

17V795 SCREW, hex head cap, M10x12,SST

18C869 SENSOR, RTD

18C870 TRANSDUCER, pressure,.5-4.5V,350B

17V807 WASHER,10/14x1, copper

17V815 PLUG, M10x1,SST

115719 PACKING,O-Ring, 015,viton

15N126 CONNECTOR, dual cable

120885 SCREW, SHCS, M5

15N115 BRACKET, connector, dual

17V891 CABLE, connection, solenoid valve

Quantity Per Model Number

34 3A8476B

Kits and Tools

LASD Nozzle Assembly Kits 25U016 and 25U017

701

702

706

704

703

705

Apply threadlocker here

707

F IG . 41

LASD Nozzle Parts List 25U016 and 25U017

Ref.

Part Description

701 131805 SCREW, SHC, M4-0.7x10 SS

702 15N123 CLAMP

703

15N118 PLATE, outer, nozzle, 0.5mm,WC

15N120 PLATE.outer, nozzle, 0.4mm,WC

704

15N119 SPACER, nozzle, 0.5mm, WC

15N121 SPACER, nozzle, 0.4mm, WC

705 25U015 HOUSING, nozzle

706 15N124 NUT, turnbuckle

707 133267 O-RING,7MM ID X 1.5MM TH,FKM,75A

25U016 25U017

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.

1. Apply Blue, Medium strength thread locker used for this assembly is Loctite ® 242 or equivalent to the

surface shown in F IG . 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.

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 F IG . 41.

3A8476B 35

Kits and Tools

LASD Nozzle Plates Assembly

Kits 25U331 and 25U332

704

703

Slot Width

LASD Nozzle Plates Assembly Kits 25U331 and 25U332 Parts List

Spray Stream Nozzle Parts List

Ref.

Part

801

W in. (mm)

17V669 0.012 (0.30)

17V670 0.012 (0.30)

17V671 0.012 (0.30)

17V672 0.012 (0.30)

17V673 0.015 (0.38)

17V674 0.015 (0.38)

17V675 0.015 (0.38)

17V676 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.

Spray Stream Adapter Kit,

25U338

901

Description

Slot Width

25U331

25U332

Nozzle Assembly,

0.4mm

Nozzle Assembly,

0.5mm

0.4mm 2 1

0.5mm

2 1

707

902

Spray Stream Nozzle Kits

707

NOTE : Apply anti seize to retaining nut (901) threads before assembly.

Spray Stream Adapter Kit Parts List,

25U338

Ref.

Part Description

901 15N229 NUT, retaining

902 25U305

707 133267

ADAPTER, nozzle, sealer, spray, assembly

O-RING,7MM ID X 1.5MM

TH,FKM,75A

Qty.

36 3A8476B

Nozzle Plug Kit, 25U333

901

Kits and Tools

Male to Male M12 Connector Kit,

15N436

1401

707

903

NOTE : Apply anti seize to retaining nut (901) threads before assembly.

Nozzle Plug Kit Parts List, 25U333

Ref.

Part Description

901 15N229 NUT, retaining

903 15N318 PLUG, nozzle

707 133267

O-RING,7MM ID X 1.5MM

TH,FKM,75A

Qty.

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.

Part

1401 15N436

Description

CONNECTOR, M12 5P, male to male

Qty.

1001

1002

PCF to 3D Gun Cable Kit Parts List

Ref.

Part Description Qty.

1001 121612 CONNECTOR, thru, M12, MXF, 1

1002 25U014

CABLE, GCA, M12 5P, M/F. ).5M

3A8476B 37

Kits and Tools

Yearly Service Kit, 25U328

410 613

505

506

Service Kit, 25T485

603

508

202

401

502

102

415

613

416

406

407

411

514

412

104

417

Service Kit Parts List, 25U328

Ref.

Part Description

102 17V839 GASKET, adapter

104 15N117 BEARING, valve shut off

202 17V817 WASHER

406 17V832 RING, guide

407 17V812 O-RING

410 15N283 GASKET, air

411 17V813 PACKING, needle

412 15N249 BEARING, upper

415 556554 O-RING, -011 viton-A 75 duro

416 555681 O-RING, -010 viton-A 75 duro

417 15N250 BEARING, lower

502 17V828 BEARING, flange

505 17V821 O-RING

506 17V855 SEAL, air

508 17V895 SEAL, rotary

514 15N268 GASKET, air

613 115719 PACKING,O-Ring, 015,viton

NOTE: Service Kit 25U328 is provided for preventive maintenance done on the SST Switch 3D Gun once a year based on average usage.

Qty.

Service Kit Parts List, 25T485

Ref.

Part Description

401 17V817 WASHER, lock ring

613 17V890 VALVE, solenoid

603 17V893 RING, dust seal

NOTE: Service Kit 25t485 is provided for preventive maintenance done on the SST Switch 3D Gun once every two years based on average usage.

Qty.

Ball Shut Off Needle Kit, 25U330

411

417

412

418

Ball Shut Off Needle Service Kit Parts List,

25U330

Ref.

Part Description

411 17V813 PACKING, needle

412 15N249 BEARING, upper

417 15N250 BEARING, lower

418 25T981 NEEDLE, ball shut off

Qty.

38 3A8476B

Kits and Tools

Bearing and Seals Kit, 25U329

411

412

8 Pin Cable Kit, 15N265

1201

417

Bearing and Seals Kit Parts List, 25U329

Ref.

Part Description

411 17V813 PACKING, needle

412 15N249 BEARING, upper

417 15N250 BEARING, lower

Qty.

8 Pin Cable Kit Part List, 15N265

Ref.

Part Description

1201 15N265 CABLE, M12, 8 pin

Material Seal Insertion/Removal

Tool, 17V972

5 Pin Cable Kit, 17V857

Qty.

1101

1301

5 Pin Cable Kit Part List, 17V857

Ref.

Part Description

1101 17V857 CABLE, M12, 5 pin

Qty.

Material Seal Insertion/Removal Tool Part

List, 17V972

Ref.

Part Description

1301 17V972 TOOL, mounting

Qty.

3A8476B 39

19.00

18.00

17.00

16.00

F IG . 42

22.00

21.00

20.00

Performance Charts

Pattern Width Versus Spray Stream Style Nozzle Sizes

The following tests were performed using a typical PVC

seam sealer. See F IG . 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

17V673

17V669

Smaller

17V674

17V670

Orifice Size

17V675

17V671

Larger

17V676

17V672

Nozzle

Width

0.03 mm

0.038 mm

40 3A8476B

2,000

1,800

1,600

1,400

1,200

1,000

800

600

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 F IG . 42. Pressure data may be useful when choosing a tip size due to

the pressure limitation of the metering equipment. See F IG . 43.

17V669

Material Pressure Versus Nozzle Sizes

17V670

17V671

17V673

17V672

Smaller

17V674

Orifice Size

17V675

Larger

17V676

Nozzle

Width

0.03 mm

0.038 mm

F IG . 43

3A8476B 41

Performance Charts

Pattern Height / Width Versus cc/sec for Spray Stream Style

Nozzles

Pattern Height / width Versus cc/sec

30 3.0

9.4 cc/sec

11.8 cc/sec

17V676 Nozzle

F IG . 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 F IG . 45**

14.1 cc/sec

Correct distance for clean bead pattern.

2.5

2.0

1.5

1.0

0.5

Width

Height

Excessive distance results in faulty bead pattern.*

F IG . 45

* Your results may vary.

** Heat curing may reduce this effect

42 3A8476B

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

F IG . 46

145

135

125

115

105

45 55

Better Quality

Bead

Lesser Quality

Bead

75 85 95 105

Dispense Height (mm)

115 125

3000 cc/m in.

3A8476B 43

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

155

145

135

125

115

105

45 55

Better Quality

Bead

65 75 85 95

Lesser Quality

Bead

Dispense Height (mm)

105 115

F IG . 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 F IG . 48.

125

3000 cc/m in.

3.98 in

100 mm Bead thickness

F IG . 48

44 3A8476B

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

1.28 in

35.2 mm

F IG . 49 Side View Typical for 25T991, 25T992, 25T993, 25T994, 25T995, 25T996 With LASD Nozzles

13 in

330.2 mm

4.88 in

124 mm

4.5 in OD

115 mm

2.50 in

63.5 mm

1.28 in

35.2 mm

18.64 in

473.46 mm

F IG . 50 Side View Typical for 25T991, 25T992, 25T993, 25T994, 25T995, 25T996 With Spray Stream Nozzles

3A8476B 45

Dimensions

120° 4 mm dia.

4.05 mm dia. +/- 0.03

2 Holes on 105 mm dia. BC

40°

1.65 in 42 mm

F IG . 51 Robot Mounting Flange Typical for all SST Switch 3D Guns

4.45 in dia.

113 mm

M6 THRU

3 Holes EQ SP on 103 mm dia. BC

46 3A8476B

Wiring Diagrams

5 Pin and 8 Pin Connector 5 Pin Cable Schematic

F IG . 52

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Wire Color

Pink

Yellow

Green

Brown

Red

White

Blue

Grey

Blue

White

Brown

Black

Pin No. Wire Color

Brown

White

Blue

Black

Grey

8 Pin Cable Schematic

Pin No. Wire Color

White

Brown

Green

Yellow

Grey

Pink

Blue

Red

3A8476B

Wiring Diagrams

5 Pin - No Sensor for 25T991 and 25T994

Y3 solenoid

Y2 solenoid solenoid

WIRING DIAGRAM

1 2 3 4

T1 11

Y1 Y2

9 12, 13, 14

SOLENOID WIRING SCHEMATIC

F IG . 53 Schematic for 25T991 and 25T994

NOTE:

See Electrical Components page 50 for

specifications.

3A8476B

Wiring Diagrams

5 Pin and 8 Pin Connections for Temperature and Pressure

Sensors. Model No. 25T992, 25T993, 25T995 and 25T996

Pressure Sensor

See Note.

Temperature Sensor

See Note.

RED

GRN

BLK

WHT

RED

WHT

1 2 3 4 5

Solenoid Solenoid

T1 11

Y1 Y2

9 12, 13, 14

Y3 Y2

SOLENOID WIRING SCHEMATIC

WIRING DIAGRAM

T1 1

Solenoid

Pressure X-Ducer Temperature sensor

SENSOR WIRING SCHEMATIC

F IG . 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.

3. See

Electrical Components table page 50 for

specifications.

3A8476B 49

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

3350 psi

176° F

80 psi

Metric

23.1 MPa, 231 bar

80° C

0.55 MPa, 5.5 bar

116 psi

0.8 MPa, 8bar

Varies by nozzle type; maximum: 20.92 in. / 532 mm

6 in.

Robot mounting flange

150 mm

8 mm 0.3 in

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

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

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

Electrical Components

Part Number Description

17V829 Sensor, Temperature

15N089 Transducer (350 bar, 5000 psi)

17V890 Solenoid

Electrical Rating

100 ohm platinum rtd sensor

10/30 Vdc input, 0.5 to 4.5 Vdc output

24 Vdc: 2.88W

3A8476B

California Proposition 65

CALIFORNIA RESIDENTS

WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.

Technical Specifications

3A8476B 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

www.graco.com

Revision B , July 2021

Instructions - Parts

SST Switch

™

Gun

3D

Swiveling applicator for robotic sealing applications. For professional use only.

Not approved for use in European explosive atmosphere locations.

Important Safety Instructions

Model Numbers

25T991

25T992

25T993

Model Numbers

25T994

25T995

25T996

Contents

Related Manuals

Models

Warnings

WARNING

WARNING

Overview

Description

Component Identification

Main Assembly

Installation

Grounding

SST Switch 3D Gun Installation

Typical Required Parts and Installation of

SST Switch 3D Gun

Robot Mounting Flange

Nozzles

LASD Nozzle Style Attachment

Anti-Rotation Brackets

Spray Stream Nozzle Style Assembly.

Cable Connections

Hose Connections

PCF Installation

Check for Free Movement

Flush SST Switch 3d Gun Before Using

Leak Test and Priming for Use

Operation

Flush the SST Switch 3D Gun

Operation Overview

Setup

Pressure Relief Procedure

Maintenance

Maintenance Table

Preventive Maintenance

Factors Affecting SST Switch 3D

Gun Life

Recycling and Disposal

End of Product Life

Troubleshooting

Repair

Removal of SST Switch 3D Gun

From Robot for Repair

SST Switch 3D Gun

Disassembly

Remove Cover Plates

Remove the Material Inlet Block

Remove Electrical Components

Remove the Pneumatic Section

Remove Pneumatic Section

Nozzle Adapter Removal

Central Body Removal

Swivel Housing Disassembly

SST Switch 3D Gun Assembly

Swivel Housing Assembly

Center Body Assembly

Material Tube Assembly

Air Cylinder Section Assembly

Connection Housing Assembly

Nozzle Group Assembly

Testing Before Installation

Parts

Parts Key

Nozzle Head and Material Tube Assembly

Nozzle Head and Material Tube Assembly Parts List.