Manual, Model AD-29 w/Flo Valve
Contents
1. 270 165 Kit Installation Five Gun 972 597 Connector Swivel 3 8 NPS x N 1 4 NPT 972 596 Connector Swivel 1 4 NPT x o 1 4 NPS 971 508 Connector Elbow 1 8 NPT x O 3 8 Tube 3 971 260 Connector Tube 3 8 O D x O 1 8 NPT ug 971 154 Connector Male 1 4 O D x o 1 8 NPT 3 973 313 Reducer 1 4 NPT x 1 8 NPT 270 159 973 402 973 410 971 155 Manifold Not shown Plug Pipe 1 8 NPT Plug Pipe 1 4 NPTF Connector Male 1 4 O D x 1 4 NPT Connector Male 3 8 O D x 1 8 NPT Wrench Adjusting Module 971 258 901 911 LITHO U S A ISSHEN 11 91 75 SHPFRSENES 4 290 752. CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 1 AD 29 GUN DESCRIPTION The Nordson AD 29 Gun is designed to apply liquid resins cold glues in a fine spray that will penetrate and harden on corru gated substrates much more rapidly than the extrusion or wheel type cold adhesive systems By atomizing the cold liquid adhe sive into a spray the set time is reduced to a four 4 to six 6 second range This short set time eliminates the need for long compression sections commonly reguired in cold glue appli cations Installation of the AD 29 Gun is simple clean up time is minimal and adhesive waste is slight Figure 1 Model AD 29 SPECIFICATIONS r i i i i i i r f i H f f t i U S A METRIC Pressure Pot Capacity 2 Gallons 7 56 Liters Operating Temperature Ambient Operating Air Pressure Gun 40 60 PSIG 2 8 4 2 kg cm Air Consumption Gun 2 SCFM Gun 944 Liters Sec Minimum Operating Air Pressure Pressure Pot 10 40 PSIG 7 2 8 kg cm Electrical Requirements Control 115 VAC 50 60 Hz 50 Watts LITHO USA Figure 1A Mounting Dimensions t ISSUED 4 77 SUPERSEDES 3 19 76 COPYRIGHT 1977 NORDSON 42 15 2 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION THEORY OF OPERATION The Nordson Pnu Bond System is comprised of one or more AD 29 Guns A a Hot Stitch Con trol B a Pressure Pot O or a Special Model 25 Pump and the necessary hoses to connect t
3. 15 10 Mordson CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION MR PISTE SIE A Fd Ah III SP a a er a Wr dg yn 8 uN ge m r wk peinpdn ofoud y Figure 6 AD 29 Exploded View LITHO U S ISSUED 4 77 SUPERSEDES 6 20 75 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 11 PARTS LIST Fig 6 Key Part No Description Req d 270 136 Gun AD 29 w Solenoid Flo Valve 1 901 015 Solenoid 120 VAC 2 973 000 Nipple V AE Close 3 3 973 250 Tee 1 8 NPT 4 900 509 Tubing 1 4 O D 75 Ft 5 971 154 Connector 1 8 NPT x 1 4 O D Tube 2 vn 6 973 125 Elbow Street 1 8 NPT 1 9 7 901 091 Valve Needle Flo Control E 270 137 Gun AD 29 l gt 8 270 153 Nut Retaining 1 9 270 152 Air Cap AD 29 A 10 270 151 Nozzle Seat AD 29 l E 11 270 141 Cover Air Cylinder 1 O 12 270 139 Screw Needle Stop 3 13 270 140 Nut Locking l 2 14 270 156 3 Spring Piston Back Up 3 15 984 133 Nut Lock Hex 1 4 28 5 16 270 145 x Washer Piston Seal l I 17 270 138 Seal Piston 1 18 270 144 Piston 1 SS 19 270 143 Clamp Threaded 1 20 270 142 Needle Shut Off 21 270 598 Packing Needle 22 940 060 O Ring Viton 1 8 x 1 4 23 270 635 Washer Seal 24 270 150 Body Gun w Nameplate AD 29 e e Body Gun AD 29 Nameplate AD 29 25 971 403 Connector 1 8 NPT x 1 4 Tube 1 973 402 Plug Pipe 1 8 NP
4. air pressure to the pot directly affects the flow rate of the adhesive LITRO U S A A issuep 6 20 79 SUPERSEDES COPYRIGHT C 1975 NORDSON 42 15 6 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION OPERATION Continued di Adjust air pressure to the gun solenoid NOTE The gun works best at a air pressure setting of 55 PSIG 3 87 kg cm2 NEEDLE LIFT ADJUSTMENT ATOMIZING Es AIR CONTROL P Figure 5 Gun Adjustments paBunyo uoipuuoyui Juawsnipo 9 p99eN G LC LL 6 Adjust atomizing air Close the air control valve needle valve by rotating the knob clockwise Then open the valve two 2 full turns counter clockwise For finer atomi zation turn the knob counter clockwise for coarser atomization turn the knob clockwise NOTE Each full turn of the needle valve knob provides about one 1 SCFM of air at 55 PSIG 125 Liters Sec at 3 87 kg cm2 The air flow valve is color coded U S A METRIC Green 8 SCFM 55 PSIG KE Gold 1 8 85 Blue 2 8 1 32 Silver 4 6 2 17 K Adjust the needle lift Close the needle adjustment screw by turning it clockwise until it stops Always loosen the locknut before turning the screw Now open the needle lift adjustment by turning the screw two 2 full turns counterclockwise If the flow rate needs adjustment increase or decrease the pot pump pressure 8 Tighten the needle lift locking nut Y Adjust the Stitch Control see the appropriate Stitcher Service Manual
5. polyethylene tubing 9 to the compression fitting 10 Attach the open end of the natural polyethylene tubing to the fluid inlet on the gun Multi Gun Installation uoisueunp pe4284107 G LC LL Each gun must be connected pneumatically and hydraulically to the pressure pot A manifold installed on the air and fluid lines permits this to be done 1 Attach 1 4 NPS x 1 4 NPT connector to the output side of the dual regulator assembly 2 Install one of the two manifolds supplied on the connector Si Install a 1 8 NPT x 3 8 Tube compression in the mani fold for each gun to be used 4 Plug any unused manifold ports with a 1 8 NPT pipe plug Dy Plug the open port at the end of the manifold with a 1 4 NPT pipe plug LITHO U S A ISSUED 11 21 75 SUPERSEDES 6 20 75 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 5 INSTALLATION Continued 6 Cut the black polyethylene tubing to the correct length We have supplied enough tubing to allow 10 feet or 3 04 meters of tubing for each gun 7 Connect a length of tubing to each compression fitting in the air line manifold 8 Install a 1 8 NPT x 3 8 Tube compression fitting straight or elbow in the tee fitting on each gun 9 Connect a length of black tubing to each gun at the tee fitting 10 Secure a 3 8 NPS x 1 4 NPT connector to output side of fluid filter assembly ek Attach the remaining manifold to the connector on the filter 12 Starting at t
6. 10 The system is ready for use NOTE Keep the system pressurized unless opening and refilling the pressure pot or removing pressure lines ISSUED 11 21 75 SUPERSEDES 6 20 75 LITHO U S A CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 7 OPERATION Continued NOTE By keeping the system pressurized the adhesive will not drain out of the fluid lines Keeping the fluid lines full will prevent adhesive residue from plugging the hoses and guns 1 Shut off Stitcher Start Up 1 Turn on Stitcher 2 If possible position substrate under over guns and fire them a few times Refilling the Pressure Pot 1 Shut off air pressure to pot 2 Open pot relief valve Do not loosen clamps until all pressure has been relieved da Loosen four 4 clamps and remove pot cover 4 Agitate fresh adhesive supply briefly N CERN EEN E EN ge tn mee we eee ere Ct age 5 Pour fresh adhesive into pot NOTE To keep the pot fluid lines and guns clean it is a good idea to use a liner in the pot This liner can be alternated as the pot is refilled keeping skimming of the pot at a minimum 6 Close the pot and secure the four 4 clamps L Turn on air pressure to the pot MAINTENANCE A cold adhesive system requires some daily maintenance to keep the system working at optimum levels 1 Clean the air ports 4 in the air cap daily Use a soft wire probe about 025 diameter Remove the a
7. ALLATION The Nordson Pnu Bond System has several components that require installation before the system can be used Installation time will depend on the size of the system how many guns are to be used To install the Pnu Bond System use the following procedure l Position each gun to be used on a 1 2 diameter mounting bar and secure it by tightening the square head screw NOTE The spray pattern width is directly proportional to the distance from the nozzle to the substrate The viscosity of the adhesive will determine the ratio of gun height to spray pattern width Generally the ratio is some where between 1 1 and 1 1 5 Example An adhesive with a viscosity of 1600 CPS lt will provide a spray pattern at a 1 1 ratio 5 An adhesive with a viscosity of 500 CPS s may provide a spray pattern closer to a o 1 1 5 ratio U S A METRIC E A o 1 25 4 MM Zo 50 8 MM O 3 76 2 MM l Figure 3 Spray Pattern Dimensions 4 101 6 MM wy 2 _ Mount the Stitch Control on the parent machine or separate stand N osa Do not subject the stitcher to excessive vibration or extreme ambient temperatures 3 Connect the stitcher to a 115 VAC input power supply Refer to the appropriate service manual 57 4 or 57 12 for complete installation instructions A _ Connect each gun solenoid to the stitcher Refer to the appropriate service manual 57 4 or 57 12 for correct wiring information 5 Connect trigg
8. Model AD 29 w Flo Valve Part 104 453A NORDSON CORPORATION e AMHERST OHIO e USA 42 15 00 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION CONTENTS Description o 42 15 1 Specifications i s 4 i j 1 Theory of Operation 2 Installation nn 3 Operation Initial Start Up wwe a 5 Shut Down gt e ne 7 Refilling 6 amp amp e 4 7 Maintenance o o 7 Trouble Shooting 7 i no E 1 y 8 Disassembly een ef Bee 9 Recommended Spare Parts List 2 9 Exploded View AD 29 LL 10 Parts List x a a amp e GR CH d ca 11 LITHO U S A ISSUED 6 20 75 SUPERSEDES CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 03 REPLACEMENT FOR AD 29 FIRST GENERATION SEAL PACKING KIT The first generation AD 29 packing kit with leather washers is now obsolete It is no longer available If P N 270 160 is ordered the customer will receive the new version packing seal kit The two packing kits are interchangeable Follow these directions to replace the leather washer version packing kit with the new version To reassemble the AD 29 gun using the nylon washer gad O ring packing kit insert the nylon seal washer in the gun body Place the O ring 2 in the recess located at the lower end of the needle packi
9. TF 270 157 Mounting Retainer 1 28 981 148 Screw Fil Hd 10 32 x 1 1 4 2 981 405 Screw Sq Hd 3 8 16 l 900 534 TO nd 1 4 O D Polyethylene 040 Wall 900 511 Tubing 3 8 O D Polyethylene 062 Wall See page 42 15 01 for INTERNATIONAL MARKET part number LITHO U S A ISSUED 4 77 SUPERSEDES 11 21 75 COPYRIGHT C 1977 NORDSON 42 15 12 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION PNU BOND SYSTEM PARTS LIST Fig Fl Fl Fl FI Fl Key Part No Description 01 02 05 03 06 F1 01 Model AD 29 One Gun Cold Adhesive System w 2 Gallon Pressure Pot Model AD 29 Two Gun Cold Adhesive System w 2 Gallon Pressure Pot Model AD 29 Three Gun Cold Adhesive System w 2 Gallon Pressure Pot Model AD 29 Four Gun Cold Adhesive System w 2 Gallon Pressure Pot Model AD 29 Five Gun Cold Adhesive System w 2 Gallon Pressure Pot Gun AD 29 w Solenoid Flo Valve Pressure Pot w Dual Regulators 2 Gal Filter Assembly Tubing 3 8 O D Polyethylene Black 062 Tubing 1 4 O D Polyethylene Natural 040 Hot Stitch Control CST 1 115 VAC Kit Installation One Gun Kit Installation Two Gun Kit Installation Three Gun Kit Installation Four Gun F1 02 F1 05 F1 03 F1 06 270 136 244 528 240 446 900 511 900 534 244 507 270 161 270 162 270 163 270 164
10. ering device limit switch photocell to stitcher See appropriate service manual for instructions Make certain the gun is grounded and wiring meets all applicable code requirements 6 Connect the fluid filter assembly to the pressure pot 7 Attach an air supply line to the inlet side of the 3 8 NPS dual regulator assembly Single Gun Installation See Figure 4 The AD 29 must be connected to the pressure pot pneumatically and hydraulically l Attach a 1 4 NPS x 1 4 NPT connector 1 to the dual regulator assembly s output side Dis Secure a 1 4 NPT x 1 8 NPT reducer 2 to the connector LITHO U S A ISSUED 11 21 75 SUPERSEDES 6 20 75 COPYRIGHT C 1975 NORDSON 42 15 4 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION INSTALLATION Continued AIR OUT GUN AIR p KN k POT AIR Figure 4 Typical Single Gun Installation di Attach a 1 8 NPT x 3 8 Tube compression fitting 3 to the reducer 4 Secure the 3 8 black polyethylene tube 4 to the compression fitting di Connect the black polyethylene tube to the tee fitting 5 on the gun with another 1 8 NPT x 3 8 Tube compression fitting Both straight and elbow fittings are supplied Use either one Attach 3 8 NPS x 1 4 NPT connector 6 to filter assembly on pressure pot 7 Secure 1 4 NPT x 1 8 NPT reducer 7 to the previously installed connector 8 Install the 1 8 NPT x 1 4 Tube compression fitting 8 on the connector 9 Secure the 1 4 natural
11. g in the gun body Thread the needle packing securely in the gun body Use a small amount of grease to lubricate the packing and needle as these parts are installed in the gun body To fino ED i the AD 29 gun insert the nylon seal washer 3 in the gun body Place the NOTE Be certain the needle packing is tightened securely in the gun body 7 Place the threaded clamp over the upper end of the shut off needle about 1 16 040 070 and thread the piston on the clamp Place the piston seal and the piston washer over the piston and secure this assembly with the locking nut Insert o the needle assembly through the packing until the shut off needle tip appears at the extrusion gt end of the gun Place the piston back up spring on top of the air piston and thread_the air cylinder cover 11 E on the gun body Complete reassembly by threading the nozzle seat o into the gun body E place the air cap jin the retaining nut and securing the retaining nut to the extrusion end of the gun RECOMMENDED SPARE PARTS LIST Description Seal Kit AD 29 984 123 Nut Lock Hex 1 4 28 270 145 Washer Piston Seal 270 138 Seal Piston 270 144 Piston 270 143 Clamp Threaded 270 142 Needle Shut Off 270 598 Packing Needle 940 060 O Ring Viton 1 8 x 1 4 270 635 Washer Seal Nylon 270 152 Air Cap AD 29 270 151 Nozzle Seat AD 29 LITHO U S A COPYRIGHT C 1978 NORDSON g ISSUED 8 78 SUPERSEDES 4 77 42
12. he guns to the pot or pump In an installation having a pressure pot air is supplied to the pressure pot through a dual regulator Atomozing air is supplied to each gun by a 3 8 O D polyethylene hose while the adhesive is delivered to the gun by a 1 4 O D polyethylene hose E The AD 29 gun has a single high pressure orifice to deliver the adhesive to the substrate Atomizing air is directed to the adhesive through five air ports located in the air cap Adoo pe4294407 G 1C LL Figure 2 Nordson Pnu Bond System 1 Gun A multi gun installation uses two manifolds one on the air line and one on the fluid line to supply air and adhesive to each gun from a single supply source A solid state Stitch Control will permit the spray pattern to be interrupted into a spray gap spray pattern to keep glue consumption at a minimum The solid state timer is signalled by a customer supplied triggering device limit switch photocell An air control valve F permits adjustment of the atomization from coarse to fine The valve s adjusting knob is color coded to aid specific adjustment Adhesive flow rate is directly related to the air pressure applied to the pressure pot The flow rate can be further refined by adjusting the needle lift This adjustment can be made using the screw G at the top of the gun LITHO U S A ISSUED 11 21 75 SUPERSEDES 6 20 75 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 3 INST
13. he port the furthest from the manifold fluid inlet install a 1 8 NPT x 1 4 Tube compression fitting for each gun to be used 13 Plug any remaining ports with a 1 8 NPT pipe plug 14 Plug the open port at the end of the manifold with a 1 4 NPT pipe plug 15 Cut the 1 4 natural polyethylene tubing to the correct length Enough bulk tubing is supplied to allow a maximum of 10 feet or 3 04 meters of tubing to each gun in the system 16 Secure a length of tubing to each compression fitting in the fluid line manifold s Attach the open end of each 1 4 tubing length to the fluid inlet on each gun OPERATION Initial Start Up Do not use flammable adhesives Provide adequate ventilation to safely remove any harmful adhesive solvent vapors l Agitate adhesive before pouring into pressure pot NOTE For best results always protect the adhesive from freezing Cold adhesives generally have a short shelf life about 90 days Always rotate your adhesive stock Refer to adhesive specification sheet for statement of shelf life 2 Pour adhesive into pressure pot after loosening four 4 clamps and removing cover NOTE The pressure pot should have a stainless steel or plastic liner or be coated so that the water based adhesive will not react with the galvanized pot di Close the pot and secure all four 4 clamps 4 Apply air pressure to GER The system works well at pressures between 10 and 40 PSIG 7 and 2 8 kg cm NOTE The
14. ir cap and clean the area around the nozzle seat of all residual adhesive Check the inline adhesive filter on a regular basis Do not allow the inside walls of the pressure pot to skim over nn bh WW N Flush the hydraulic part of the system regularly with warm water LITHO U S A ISSUED 6 20 75 SUPERSEDES COPYRIGHT C 1975 NORDSON 42 15 8 CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE Flo valve closed Air cap ports blocked Air hose kinked Air hose fittings blocked Adhesive flowing no atomization Flo valve closed too far Air cap ports blocked Air hose partially blocked Air hose fittings partially blocked Adhesive flowing atomization too coarse Flo valve opened too far Adhesive flowing Gun air pressure too high over 65 PSIG 4 57 kg cm2 atomization too fine Pressure pot not sufficiently pressurized No air pressure to gun Stitch Control not On Stitch Control not functioning Gun solenoid failed Needle lift improperly adjusted Fluid line blocked Air line blocked Pressure pot empty No adhesive flow _ Te Wr GY Nu RE Ym i Sede mp ewer ee Pressure pot not sufficiently pressurized 25 PSIG 1 76 kg cm optimum Needle lift adjusted too low Fluid line blocked Fluid filter plugged Too little adhesive flow Too much adhesive flow Improper adhesive pattern
15. ng DE Insert the needle packing a in the gun body Thread the packing securely in the body Use a small amount of grease to fubricate the packing and needle before installing these components in the gun body Place the threaded clamp over the uppex end of the shut off needle 20 about 6 inch 040 to 070 inch and thread the piston on the clamp Place the piston se pe the piston washer over the piston and secure this assembly with the locking nut Insert the needle assembly through the needle packing until the tip of the shut off needle appears at the extrusion end of the gun SS Place the piston back up spring 4 on top of the air piston and thread the air cylinder cover on the gun of Complete ing nut 8 by threading the nozzle seat into the gun body place the air cap in the retaining nut 8 Jand secure the retaining nut to the extrusion end of the gun SEAL KIT PARTS LIST Fig S Part No Description 270 696 Seal Kit AD 29 984 133 Nut Lock Hex 270 145 Washer Pist n Seal 270 138 Seal Piston Kal o 270 144 Piston 270 143 Clamp Threaded 270 142 Needle Shut Off 270 598 Packing Needle 940 060 O ring Viton 1 8 x 1 4 270 635 Washer Seal Nylon 8 78 Revised P N uro us ISSUED 8 78 SUPERSEDES 3 77 COPYRIGHT C 1978 NORDSON 42 15 04 Wordson CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION Figure 1 AD 29 Exploded View LITHO U S e ISSUED 3 77 SUPERSEDES
16. width Pressure pot over 45 PSIG 3 16 kg cm2 Needle lift adjusted too high Air cap port s plugged Fluid seat blocked Glue dried on needle face Air cap orifice blocked Triggering device malfunction Stitcher set incorrectly Stitcher malfunctioning see appropriate manual Improper adhesive pattem length Piston seals need lubrication or replacement Air escaping from ports in AD 29 air cylinder cover Adhesive leaking from Needle seal washers need replacement ports in AD 29 cylinder cover or solenoid LITHO U S A ISSHED 6 20 75 SUPERSEDES CORPORATION Amherst Ohio 44001 TECHNICAL PUBLICATION 42 15 9 DISASSEMBLY The 0 gun is disassembled by removing the retaining nut 8 air cap 9 and nozzle seat from the extrusion end of the gun Refer to Figure 6 for key numbers and exploded view Loosen the air cylinder cover D and remove the piston back up spring 14 Pu the air piston and needle from the gun body Now the needle packing the Qering and seal washer can be removed from the gun body Loosen the locking nut 15 and lift the piston washer and piston seal off the piston Thread the piston off the threaded clamp Disassembly is complete The needle packing e O ring 22 and seal washer 23 are available in the AD 29 seal kit REASSEMBLY O ring in the recess located at the lower end of the needle packing Insert the needle packin
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