EQUIPMENTOperation Manual

Loctite Syringe Dispense SystemPart Number 98021

Contents

1 Please Observe the Following............................................................................................... 31.1 Emphasized Sections............................................................................................................ 31.2 Items Supplied ..................................................................................................................... 31.3 For Your Safety ................................................................................................................... 31.4 Field of Application (Intended Usage) ............................................................................... 4

2 Description ............................................................................................................................. 42.1 Theory of Operation............................................................................................................ 42.2 Operating Elements and Connections ............................................................................... 5

3 Technical Data ....................................................................................................................... 73.1 Energy Requirements.......................................................................................................... 7

3.1.1 Electrical ........................................................................................................................ 73.1.2 Pneumatic...............................................................................................................................................7

3.2 Air Hose Connections.......................................................................................................... 73.3 Other Data............................................................................................................................ 7

4 Installation ............................................................................................................................. 74.1 Space Requirements ............................................................................................................ 74.2 Connecting the Unit............................................................................................................. 8

5 Dispensing .............................................................................................................................. 85.1 Operation............................................................................................................................. 8 5.2 Filling the Syringe................................................................................................................ 95.3 Time Range Adjustment ................................................................................................... 105.4 Shut down........................................................................................................................... 11

6 Care and Maintenance........................................................................................................ 11

7 Troubleshooting................................................................................................................... 12

8 Spare Parts and Accessories............................................................................................... 13

9 Warranty.............................................................................................................................. 14

10 Appendix .............................................................................................................................. 1510.1 Electrical Diagram........................................................................................................... 1510.2 Pneumatic Diagram ......................................................................................................... 15

1 Please Observe the Following

1.1 Emphasized Sections

Warning!Refers to safety regulations and requires safety measures that protect the operator or other personsfrom injury.

Caution!Emphasizes what must be done or avoided so that the unit or other property is not damaged.

Notice:Gives recommendations for better handling of the unit during operation or adjustment as well as forservice activities.

1.2 Items Supplied

Carefully remove the system from its shipping carton and inspect it for any signs of damage.Any damage should be reported immediately to the carrier. Refer to the list of supplied parts belowand compare to the contents. Report any missing parts promptly to the Loctite customer servicedepartment at 1-800-LOCTITE or 1-800-562-8483.

(1) Syringe Dispenser with Power Cord(1) Foot Switch(1) Foot Switch Cord Lock

(1) Instruction Manual

(1) Needle Variety Kit

1.3 For Your Safety

For safe and successful operation of the unit, read these instructions completely. If theinstructions are not observed, the manufacturer can assume no responsibility.

Check power cord for damage on a routine basis. If the power cord is damaged, do not operateand remove from service until repaired or replaced.

Check air supply hose for damage on a routine basis. If the air supply hose is damaged, do notoperate and remove from service until repaired or replaced.

Always wear goggles when operating with pressurized air.

Observe general safety regulations for the handling of chemicals. Observe the manufacturer’sinstructions as stated in the Material Safety Data Sheet (MSDS).

While under warranty, the unit may be repaired only by an authorized Loctite servicerepresentative.

1 Please Observe the Following (Continued)

1.4 Field of Application (Intended Usage)

The Syringe Dispense System 98021 provides a semi-automatic dispensing process utilizingadhesive product packaged in 10 or 30 ml syringes. It is intended for either dot-per-part, bead orfill applications.

Syringe dispensing offers many benefits including quick and easy set-up and clean-up resulting inminimal down time. Use of Loctite® pre-filled syringes offers additional on-line production easeand convenience.

2 Description

2.1 Theory of Operation

The system is a pressure-time-vacuum dispensing system. It consists of a plastic disposablesyringe that is filled with Loctite® product, an air regulator and pressure gauge to control thepressure and an electrical timing circuit to control the dispense cycle. The vacuum suck-backfeature allows the operator to control product stringing, dripping or drooling between dispensecycles.

When the dispense cycle is initiated by pressing the foot switch, a pulse of air, either timed ormanually controlled, is transmitted to the top of the syringe barrel. This pushes a metered amountof product out of the dispense tip attached to the syringe.

When actuation ceases, whether a timed cycle or manually controlled cycle, the pressurized air isexhausted and an amount of vacuum is drawn on the product to hold it suspended in the syringebarrel and needle.

The amount of product dispensed is controlled by the amount of pressure applied to the product,the length of the dispense cycle time and the size of the dispense tip orifice. Higher pressure,longer time and larger tip orifice result in greater amounts of product being dispensed. Lowerpressure, shorter time and smaller tip orifice result in smaller amounts of product beingdispensed.

A convenient grounding point is provided on the front of unit. This ground is routed through a 10meg ohm resistor for controlled dissipation of static discharge and to prevent operator injury.

2 Description (Continued)

2.2 Operating Elements and Connections

Refer to numbered items in Figure 1.

ITEM FUNCTION

1. Power Switch Illuminated to indicate “On” position2. Air Pressure Regulator Regulates dispense air pressure3. Air Pressure Gauge Displays dispense air pressure4. Mode Switch Indicates automatic/timed or manual dispense5. Timer Control Adjusts shot time in auto dispense mode6. Vacuum Control Adjusts vacuum suck back7. Airline Adapter Connector Quick connect receptacle for syringe barrel adapter8. Grounding Strap Receptacle* Grounding point9. Power Cord Connects to AC power supply10. Fuse Electrical circuit protection11. Air In Air supply connection12. Foot Switch Receptacle Activates dispense circuit13. Foot Switch Cord Lock Locks foot switch cord in place14. Foot Switch Activates dispense cycle15. Hose Clamp Temporary airline shut-off16. Syringe Airline Adapter Assembly**Syringe-air interface17. Syringe Barrel Cap** Protects syringe contents18. Product Piston ** Air-product interface19. Syringe** Product reservoir20. Dispensing Needle Accurate drop placement21. Barrel Tip Cap** Prevents leakage22. Syringe Stand** Holds syringe upright

* May require an adapter with a mini-banana plug (Newark Electronics stock # 39F3621 type 3276).

** Not included, sold as an accessory.

2 Description (Continued)

Figure 1

3 Technical Data

3.1 Energy Requirements

3.1.1 ElectricalInput Voltage 110-120 VAC 60 Hz – ½ AmpInternal Voltage 24 VDC

3.1.2 PneumaticAir Input 35-100 psi (2.5-7 bar)Air Output 1-100 psi (0.1 – 7 bar)Vacuum Range 1-15 inches HgAir Quality Dry, filtered (5 um), oil-free air

(See Section 8 of this manual, Spare Parts andAccessories)

3.2 Air Hose Connections¼” Quick Connect

3.3 Other Data

Timer Programmable: 0.01-1, 0.1-10, 0.2-20, 0.3-30 sec. Preset to 0.01 – 1 sec.

Cycle Initiation Momentary (press foot switch once) or Maintained (holdfoot switch down during dispense cycle) Preset toMomentary.

Size 9.25 x 8.6 x 2.5 inches(23.5 x 21.5 x 6.4 cm)

Weight 4.75 lbs (2.1 kg)

4 Installation

4.1 Space Requirements

PU

L L T O A D J U

ST

FRONT VIEW

O

OFF

I

ON

MAN

TIMEAUTO

- +

- +

PRESSUREAIR VACUUM

6040 50

70

1000

20

10

30psi 80

90

98021 Syringe Dispense System

TOP VIEW

67 45 3

Loctite

Rocky Hill, CT 06067www.loctite.com

1001 Trout Brook Crossing

air supply prior to removing cover.Unplug power cord and disconnectWARNING:

4 Installation (Continued)

4.2 Connecting the Unit

Refer to numbered items in Figure 1.

Place syringe dispenser level with or raised above (never below) the work area. Placing the unitbelow work area may allow product to flow back into the pneumatic circuit of the unit.

1. Connect 100 psi max dry, filtered air supply to air supply quick connect fitting 11.

A 5-micron air filter/regulator (PN 985397) is offered as a recommended option to ensureproper air filtration.

2. Install the cord lock 13 to the cord lock mount with the slot at the bottom.

3. Lift the cord lock 13 and connect the foot switch plug 14 to the foot switch receptacle 12.

4. Fit the cord lock 13 over the foot switch cord 14.

5. Plug the syringe barrel adapter hose assembly (ordered separately) 16 into the airline adapterconnector 7 on the front of the unit. Twist the connector clockwise to lock in place.

6. Insure that the power switch is in the “OFF” position. Connect the power cord 9 to agrounded 120V AC outlet.

5 Dispensing

5.1 Operation

Refer to numbered items in Figure 1.

Before turning on unit, set pressure regulator 2, vacuum 6 and timer 5 to zero. To adjustpressure regulator 2, pull knob out. To lock in place, push knob in.

1. Turn on the unit by switching the power switch 1 to the “On” position. The switch should lightup in the “On” position.

2. Turn up the air pressure by rotating the air pressure regulator knob 2 until the desired pressureis indicated on the air pressure gauge 3. If desired pressure is unknown, start with 5-10 psi forinitial shots and increase pressure as necessary.

3. After filling syringe barrel (See section 5.2) or using pre-packaged adhesive, attach syringe 19to syringe barrel adapter 16, making certain that the syringe locks into place.

Avoid holding syringe 19 in an elevated position, turning syringe barrel upside down or layingon its side allowing product to run into the barrel adapter airline. If this occurs, change the barreladapter air line assembly 16.

5 Dispensing (Continued)

Use of the syringe stand 22 is recommended. (Ordered Separately)

During work pauses or when changing syringes, press hose clamp 15 closed.

4. If suck back vacuum is desired, adjust the vacuum control knob 6 until just enough vacuum isapplied to prevent product from dripping.

An in-line tubing filter, PN 984650, is available as an option to help prevent product frombeing sucked back into the pneumatic circuit of the unit through the syringe airline adapterassembly 16.

5. For manual dispense operation place mode switch 4 in “MAN” position.

6. Depress foot switch 14 to dispense.

7. For automatic timed dispense place mode switch 4 in “AUTO” position.

8. Rotate timer control knob 5 to set shot time. If timer setting is unknown, start at a low settingand increase gradually.

The unit is preset at the factory to provide a time range of 0.01-1 second. To set this for alonger time range, see Section 5.3, Time Range Adjustment.

9. Depress foot switch 14 to activate timed dispense cycle.

10. To increase or decrease the amount of product dispensed, increase the dispense pressure,cycle time, or dispense tip orifice size.

5.2 Filling the Syringe

Refer to numbered items in Figure 1.

1. Close the tip of the syringe with a barrel tip cap 21.

2. Hold the syringe 19 at an angle to prevent air bubbles from forming during filling.

3. Fill syringe 19 to a maximum of 2/3 full with product, leaving adequate room for the product

piston 18.

Figure 3

Dispensing (Continued)

4. Gently slide the piston 18 into the syringe 19 until touching the product.

Failure to insert product piston 18 after filling results in increased risk of drawing product

into the pneumatic circuit, possibly causing damage to the unit.

Depending on the dispensing task, fill several syringes 19 at the same time.

Store filled syringes 19 with barrel tip caps 21 and syringe barrel caps 17.

5.3 Time Range Adjustment

Refer to numbered items in Figure 1.

The unit is preset at the factory to provide a momentary foot switch contact (press foot switchonce) and a time range of 0.01 – 1 second. If a longer timed shot or maintained foot switchcontact (hold foot switch down during cycle time) is needed, the setting may be changed asfollows:

1. Unplug power cord 9 from AC outlet and disconnect air supply 11 prior to removingcover.

2. Place barrel tip cap 21 on syringe 19. 3. Using a medium Phillips screwdriver, remove screws holding the cover.4. Slide cover straight back to expose internal components.5. Mounted on the circuit board located in the center of the unit is a small dipswitch.6. The dipswitch is set as shown below. Using the table, reset the dipswitch to the

desired setting.7. Replace cover. Secure in place with screws.

S1 ON : Timed Mode : Momentary contact (press foot switch once)S1 OFF: Timed Mode : Maintained contact (hold foot switch down

during cycle time)

TIMED MODE 0.01-1 SEC 0.1-10 SEC 0.2-20 SEC 0.3-30 SECS2 OFF OFF OFF ONS3 OFF OFF ON ONS4 OFF ON ON ON

1 2 3 4OFF

ON

5 Dispensing (Continued)

5.4 Shut down

Refer to numbered items in Figure 1.

1. During idle time*, the dispensing needle 20 on the syringe 19 should be removed andreplaced with a barrel tip cap 21. Remove syringe from the barrel adapter 16 and replacesyringe barrel cap 17.

*Idle time is defined by the type of adhesive product in use. For moisture sensitive productssuch as cyanoacrylates, some urethanes and some silicones, the syringe should be capped offfor even short breaks due to moisture present in the environment. Products which have a lightcuring mechanism should also be capped off even for short breaks due to the possibility ofcuring in the dispense tip. Other adhesives including anaerobic and acrylic adhesives do notneed to be capped unless being left for overnight or longer.

2. Turn off the unit by switching the power switch 1 to the “Off” position.

6 Care and Maintenance

To assure trouble free operation, the following recommendations should be followed:

1. Routinely check air supply hose and power cord for damage or cracks.2. Drain air supply filter/regulator. Replace if necessary. (Filter cartidge only is SMC

Pneumatics P/N: 1129116)3. Replace in-line filter on airline adapter assembly as necessary if using cyanoacrylates.4. Occasionally the o-ring on the syringe barrel adapter should be lubricated with the

silicone grease provided with the unit. This will prolong the life of the o-ring.5. Clean or replace syringe barrel adapter if o-ring becomes cracked or damaged.

7 Troubleshooting

Problem Cause CorrectionA. Power light does not light.

1. No power input.

2. Fuse open.3. Power switch not “ON”. 4. Power switch defective.5. Light burned out.

1. Check power cord connections andpower supply.

2. Replace fuse.3. Turn on power switch.4. Power switch needs to be replaced. *5. Switch needs to be replaced. *

B. System will not actuate. 1. Foot switch not plugged in orimproperly plugged in.

2. Defective foot switch.

3. Broken wire or looseconnection inside unit.

4. Defective solenoid.5. Defective timer.

1. Check foot switch connection.

2. Foot switch needs to be repaired orreplaced. *

3. Unplug power cord and disconnectair supply. Remove cover and checkfor broken wires or looseconnections.

4. Solenoid needs to be replaced. *5. Timer needs to be replaced. *

C. System will not pressurize.

1. Insufficient air pressure.

2. Air hoses not plugged in.3. Regulator defective.

1. Check that air supply pressure is 35-100 psi.

2. Check connection.3. Regulator needs to be replaced. *

D. System will not pull vacuum.

1. Vacuum setting is too low.2. Defective barrel o-ring seal.

3. Defective solenoid.4. Defective vacuum venturi.5. Defective vacuum needle valve.

1. Increase vacuum setting.2. Replace syringe airline adapter

assembly.3. Solenoid needs to be replaced. *4. Venturi needs to be replaced. *5. Needle valve needs to be replaced. *

E. Inconsistent Dispensing 1. Check needle and barrel forclogging.

2. Low timer setting.3. Air bubbles in adhesive.

1. Clean or replace.

2. Increase timer setting.3. Reduce vacuum setting.

F. Needle sets up with adhesive. 1. Idle time is too long.

2. Use of metal hub needle.

1. Remove needle during idle times.Replace with barrel tip cap.

2. Obtain plastic hub needles.

* Contact Loctite Equipment Service. For further information and support, contact LoctiteTechnical Information at 1-800-Loctite (1-800- 562-8483) or visit our website atwww.Loctite.com.

8 Spare Parts and Accessories

Description Loctite Order No.10 ml Air Line Adapters (2/box) 9720830 ml Air Line Adapters (2/box) 9724510 ml Clear Syringe Package (40/box) 9720730 ml Clear Syringe Package (20/box) 9724410 ml Black Syringe Package (40/box) 9726330 ml Black Syringe Package (20/box) 97264Syringe Filler Kit 9721510 ml Syringe Starter Kit 9721630 ml Syringe Starter Kit 97294

Dispense Needle, Polyethylene – Taper TipDispense Needle 16GA (50 pcs/box), ID Size 1.20 mm, grey 97221Dispense Needle 18GA (50 pcs/box), ID Size 0.84 mm, green 97222Dispense Needle 20GA (50 pcs/box), ID Size 0.58 mm, pink 97223Dispense Needle 22GA (50 pcs/box), ID Size 0.41 mm, blue 97224

Dispense Needle, Stainless Steel – StraightDispense Needle 15GA (50 pcs/box), ID Size 1.37 mm, amber 97225Dispense Needle 18GA (50 pcs/box), ID Size 0.84 mm, green 97226Dispense Needle 20GA (50 pcs/box), ID Size 0.58 mm, pink 97227Dispense Needle 25GA (50 pcs/box), ID Size 0.25 mm, red 97228

Dispense Needle, Polypropylene – Flexible Dispense Needle 15GA (50 pcs/box), ID Size 1.37 mm, grey tube 97229Dispense Needle 18GA (50 pcs/box), ID Size 0.84 mm, pink tube 97230Dispense Needle 20GA (50 pcs/box), ID Size 0.58 mm, yellow tube 97231Dispense Needle 25GA (50 pcs/box), ID Size 0.25 mm, red tube 97232

Foot Switch 984621Syringe Stand 984625Air Supply Filter/Regulator 985397In-line Tubing Filter 984650Foot Switch Cord Lock 984623Fuse (Fast Acting, 1⁄2 Watt, 250 V Rating) 984628Syringe Finger Switch 985678Silicone Grease 997569Instruction Manual 984651

9 Warranty

Henkel Loctite Corporation expressly warrants that all products referred to in this Instruction Manualfor the Syringe Dispense System 98021 (hereafter called “Products”) shall be free from defects inmaterials and workmanship. Liability for Henkel Loctite Corporation shall be limited, as its option, toreplacing those Products which are shown to be defective in either materials or workmanship or tocredit the purchaser the amount of the purchase price thereof (plus freight and insurance charges paidtherefore by the user). The purchaser’s sole and exclusive remedy for breach of warranty shall be suchreplacement or credit.

A claim of defect in materials or workmanship in any Products shall be allowed only when it issubmitted in writing within one month after discovery of the defect or after the time the defect shouldreasonably have been discovered and in any event, within 24 months after the delivery of the Productsto the purchaser. This warranty does not apply to perishable items, such as needles, syringecomponents, air line adapters, fuses, and in-line filters. No such claim shall be allowed in respect ofproducts which have been neglected or improperly stored, transported, handled, installed, connected,operated, used or maintained. In the event of unauthorized modification of the Products including,where products, parts or attachments for use in connection with the Products are available from HenkelLoctite Corporation, the use of products, parts or attachments which are not manufactured by HenkelLoctite Corporation, no claim shall be allowed.

No Products shall be returned to Henkel Loctite Corporation for any reason without prior writtenapproval from Henkel Loctite Corporation. Products shall be returned freight prepaid, in accordancewith instructions from Henkel Loctite Corporation.

NO WARRANTY IS EXTENDED TO ANY EQUIPMENT WHICH HAS BEEN ALTERED, MISUSED,NEGLECTED, OR DAMAGED BY ACCIDENT, OR IF THE SYSTEM IS USED TO DISPENSE ANYLIQUID MATERIAL OTHER THAN HENKEL LOCTITE CORPORATION PRODUCTS.

EXCEPT FOR THE EXPRESS WARRANTY CONTAINED IN THIS SECTION, HENKEL LOCTITECORPORATION MAKES NO WARRANTY OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED,WITH RESPECT TO THE PRODUCTS.

ALL WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND OTHERWARRANTIES OF WHATEVER KIND (INCLUDING AGAINST PATENT OR TRADEMARKINFRINGEMENT) ARE HEREBY DISCLAIMED BY HENKEL LOCTITE CORPORATION AND WAIVEDBY THE PURCHASER.

THIS SECTION SETS FORTH EXCLUSIVELY ALL OF LIABILITY FOR HENKEL LOCTITECORPORATION TO THE PURCHASER IN CONTRACT, IN TORT, OR OTHERWISE IN THE EVENT OFDEFECTIVE PRODUCTS.

WITHOUT LIMITATION OF THE FOREGOING, TO THE FULLEST EXTENT POSSIBLE UNDERAPPLICABLE LAWS, HENKEL LOCTITE CORPORATION EXPRESSLY DISCLAIMS ANY LIABILITYWHATSOEVER FOR ANY DAMAGES INCURRED DIRECTLY OR INDIRECTLY IN CONNECTIONWITH THE SALE OR USE OF, OR OTHERWISE IN CONNECTION WITH, THE PRODUCTS,INCLUDING, WITHOUT LIMITATION, LOSS OF PROFITS AND SPECIAL, INDIRECT ORCONSEQUENTIAL DAMAGES, WHETHER CAUSED BY NEGLIGENCE FROM HENKEL LOCTITECORPORATION OR OTHERWISE.

10 Appendix

10.1 Electrical Diagram

10.2 Pneumatic Diagram

10ΜΩ

PORTOUTLET

PLUGAIR INLET NEEDLE VALVE

VENTURI

GAUGE

REGULATOR

SOL. VALVE

Loctite Industrial

Henkel Loctite Corporation1001 Trout Brook CrossingRocky Hill, CT 06067-3910

Henkel Loctite Corporation2225 Meadowpine BoulevardMississauga, Ontrario L5N 7P2

Henkel Capital, S.A. de C.V.Calzada de la Viga, s/n, Fracc. Los LaurelesLoc. Tulpetlac, C.P. 55090Ecatepac de Morelos, Edo de Mexico,Mexico

Henkel Loctite AutomotiveTechnology Center

2455 Featherstone RoadAuburn Hills, Michigan 48326

Henkel Ltda. BrazilAv. Prof. Vernon Krieble, 9106690-11-ItapeviSao Paulo, Brazil www.loctite.com

Loctite is a registered trademark of Henkel Loctite Corporation, U.S.A© Copyright 2003. Henkel Loctite Corporation. All rights reserved. Data in this operation manual is subject to change without notice.P/N: 984651 Rev. D, 09/2003