Series B900-N and B900SW-N Manifold Mounted Electric Guns For use with DuraBlue Series Melters Customer Product Manual Part 1041221B Issued 3/06 NORDSON CORPORATION • DULUTH, GEORGIA • USA www.nordson.
For CE Declaration, refer to melter manual. Nordson Corporation welcomes requests for information, comments, and inquiries about its products. General information about Nordson can be found on the Internet using the following address: http://www.nordson.com. Address all correspondence to: Nordson Corporation Attn: Customer Service 11475 Lakefield Drive Duluth, GA 30097 Notice This is a Nordson Corporation publication which is protected by copyright. Original copyright date 2003.
Table of Contents Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety Alert Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Responsibilities of the Equipment Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Table of Contents Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Replace a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Remove a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series B900-N and B900SW-N Manifold Mounted Electric Guns 1 Series B900-N and B900SW-N Manifold Mounted Electric Guns Safety Read this section before using the equipment. This section contains recommendations and practices applicable to the safe installation, operation, and maintenance (hereafter referred to as “use”) of the product described in this document (hereafter referred to as “equipment”).
2 Series B900-N and B900SW-N Manifold Mounted Electric Guns Safety Information S Research and evaluate safety information from all applicable sources, including the owner-specific safety policy, best industry practices, governing regulations, material manufacturer’s product information, and this document. S Make safety information available to equipment users in accordance with governing regulations. Contact the authority having jurisdiction for information.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 3 Intended Use of the Equipment S Use the equipment only for the purposes described and within the limits specified in this document. S Do not modify the equipment. S Do not use incompatible materials or unapproved auxiliary devices. Contact your Nordson representative if you have any questions on material compatibility or the use of non-standard auxiliary devices.
4 Series B900-N and B900SW-N Manifold Mounted Electric Guns Installation Practices (contd) S Properly ground all equipment. Contact your local building code enforcement agency for specific requirements. S Ensure that fuses of the correct type and rating are installed in fused equipment. S Contact the authority having jurisdiction to determine the requirement for installation permits or inspections.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 5 Equipment Shutdown To safely complete many of the procedures described in this document, the equipment must first be shut down. The level of shut down required varies by the type of equipment in use and the procedure being completed. If required, shut down instructions are specified at the start of the procedure.
6 Series B900-N and B900SW-N Manifold Mounted Electric Guns General Safety Warnings and Cautions Table 1 contains the general safety warnings and cautions that apply to Nordson hot melt and cold adhesive equipment. Review the table and carefully read all of the warnings or cautions that apply to the type of equipment described in this manual. Equipment types are designated in Table 1 as follows: HM = Hot melt (melters, hoses, guns, etc.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 7 Table 1 General Safety Warnings and Cautions Equipment Type Warnings and Cautions HM WARNING: Hazardous vapors! Before processing any polyurethane reactive (PUR) hot melt or solvent-based material through a compatible Nordson melter, read and comply with the material’s MSDS.
8 Series B900-N and B900SW-N Manifold Mounted Electric Guns General Safety Warnings and Cautions (contd) Table 1 General Safety Warnings and Cautions (contd) Equipment Type Warnings and Cautions HM, CA, PC WARNING: Risk of electrocution! Even when switched off and electrically isolated at the disconnect switch or circuit breaker, the equipment may still be connected to energized auxiliary devices. De-energize and electrically isolate all auxiliary devices before servicing the equipment.
Series B900-N and B900SW-N Manifold Mounted Electric Guns Equipment Type 9 Warnings and Cautions HM CAUTION: Hot surfaces! Avoid contact with the hot metal surfaces of guns, hoses, and certain components of the melter. If contact can not be avoided, wear heat-protective gloves and clothing when working around heated equipment. Failure to avoid contact with hot metal surfaces can result in personal injury.
10 Series B900-N and B900SW-N Manifold Mounted Electric Guns First Aid If molten hot melt comes in contact with your skin: 1. Do NOT attempt to remove the molten hot melt from your skin. 2. Immediately soak the affected area in clean, cold water until the hot melt has cooled. 3. Do NOT attempt to remove the solidified hot melt from your skin. 4. In case of severe burns, treat for shock. 5. Seek expert medical attention immediately.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 11 Table 2 Safety Labels and Tags Item Part 1. N/A WARNING: Hot Surface! Before touching the gun body, allow the gun to cool, or wear heat−protective gloves. Failure to allow the gun body to cool or to wear heat−protective gloves may cause personal injury. Description 2. 600137 WARNING: Disconnect power and remove system pressure before disassembly or maintenance. Failure to follow these instructions may result in serious personal injury.
12 Series B900-N and B900SW-N Manifold Mounted Electric Guns Description CAUTION: This gun is intended for use only with the following DuraBlue units: D4L, D10L, D16L, D10 and D16. Do not use this gun with any other type of melter. B900-N and B900SW-N (B900) electric guns are high-speed, all-electric guns designed for the precision placement of hot melt adhesive. The module is an electric solenoid valve with a spring-loaded armature inside the adhesive chamber.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 13 Installation Connect Footswitch and Gun Cordset 1. See Figure 3. Connect the handgun footswitch to the appropriate switch receptacle on the back of the melter. P/N 1030542 2 1 4 3 Figure 3: Connect the Gun and Accessories 2. See Figure 3. Connect the fluid inlet gun directly to the manifold. Connect the cordset to the melter. Up to two guns may be used with the melter.
14 Series B900-N and B900SW-N Manifold Mounted Electric Guns Table 3 DuraBlue Operating Parameters for B900 Gun Set-up 12 Change Hose 1 Output to Electric Gun Activation Description: Value: Changes the proportioned 240 VAC current that is provided to the hose 1 heater to a switched 240 VAC current that is used to activate a manifold-mounted electric gun.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 15 Make the Electrical Connections Make wiring connections at the melter. Refer to the melter or gun driver manual for instructions. The following gun cordset wiring diagram is provided for reference. A 12-pin cordset connector is present on both gun models.
16 Series B900-N and B900SW-N Manifold Mounted Electric Guns Operation Prepare for Operation 1. Start the melter and allow it to reach operating temperature. Refer to the melter manual as needed. 2. Tighten all hydraulic fittings. 3. Remove the gun nozzles and flush adhesive through the guns. Refer to the melter manual for the flushing procedure. 4. Reinstall the gun nozzles. Set the Gun Temperature Use a pyrometer to periodically measure the operating temperature of the gun.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 17 See Figure 5. 1 2 Figure 5: Module stroke adjustment 1. Guide tube 2. Retaining nut 1. Loosen the retaining nut (2) on top of the module. 2. Use a screwdriver to turn the guide tube (1) clockwise until the armature needle stops against the seat. 3. Turn the guide tube one-half turn counterclockwise to adjust the stroke to 0.38 mm (0.015 in.). 4. While holding the guide tube stationary, tighten the retaining nut. Do not overtighten.
18 Series B900-N and B900SW-N Manifold Mounted Electric Guns Recommended Maintenance Schedule Table 4 provides a recommended maintenance schedule. The operating environment will determine how often these steps should be performed.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 19 CAUTION: Do not use a torch, high heat, or agressive solvents to clean reduced-cavity nozzles. Doing so will damage the nozzle O-ring. 4. Soak the nozzles in Nordson Type R cleaning fluid that has been heated above the melting point of the hot melt. 5. Remove the nozzles from the cleaning fluid. CAUTION: Use the correct size precision pin probe to clean Nordson nozzles. The use of non-precision or incorrectly sized probes may damage the nozzle.
20 Series B900-N and B900SW-N Manifold Mounted Electric Guns Troubleshooting WARNING: Allow only personnel with appropriate training and experience to operate or service the equipment. The use of untrained or inexperienced personnel to operate or service the equipment can result in injury, including death, to themselves and others, and damage to the equipment. The following table lists the gun problems that are most likely to occur, the possible causes of each problem, and steps for corrective action.
Series B900-N and B900SW-N Manifold Mounted Electric Guns Problem 1. No adhesive output Possible Cause 21 Corrective Action Melter pump off Start the melter pump. Melter flow control valve set too low Increase the system hydraulic pressure (without stalling the motor) by adjusting the flow control valve. If there is no change, inspect the flow control valve for proper operation. Replace the valve as necessary. Defective RTD Unplug the gun cordset and verify that the RTD connections are secure.
22 Series B900-N and B900SW-N Manifold Mounted Electric Guns Troubleshooting Problem 2. Adhesive output too low (contd) Possible Cause Corrective Action Defective RTD Unplug the gun cordset and verify that the RTD connections are secure. If the connections are secure, check the continuity of the RTD across the RTD pins on the cordset. If there is no continuity, replace the RTD. Refer to the wiring diagram and resistance data.
Series B900-N and B900SW-N Manifold Mounted Electric Guns Problem 3. Adhesive output too high 4. Erratic temperature readings Possible Cause 23 Corrective Action Defective RTD Unplug the gun cordset and verify that the RTD connections are secure. If the connections are secure, check the continuity of the RTD across the RTD pins on the cordset. If there is no continuity, replace the RTD. Refer to the wiring diagram.
24 Series B900-N and B900SW-N Manifold Mounted Electric Guns Cleaning Nozzles Problem 5. Gun fails to heat 6. Gun overheats (contd) Possible Cause Corrective Action Poor electrical connections Check all wires and wire terminations in the output connector and RTD circuit and repair as needed. Refer to the wiring diagram. With the system power off, disconnect the gun cordsets from the melter. Check for heater and RTD continuity through the wires to gun.
Series B900-N and B900SW-N Manifold Mounted Electric Guns Problem 7. Gun heats slowly 8. Module seat leaks Possible Cause 25 Corrective Action Incorrect system voltage Ensure that system voltages match. Incorrect component wiring Check all wires and wire terminations in the hose heater, output connector, and RTD circuit and repair as needed. Refer to the wiring diagram. Failed heater Check the resistance of the heater across the appropriate pins on the gun cordset.
26 Series B900-N and B900SW-N Manifold Mounted Electric Guns Cleaning Nozzles Problem 9. Gun will not trigger − adhesive will not dispense (contd) Possible Cause Corrective Action Gun not heating correctly See above. Poor electrical connections Check all wires and wire terminations in the hose heater, output connector, and RTD circuit. With system power off, disconnect the gun cordsets from the melter. Check the heater and RTD continuity.
Series B900-N and B900SW-N Manifold Mounted Electric Guns Problem 10. Poor adhesive cutoff Possible Cause 27 Corrective Action Module stroke not properly adjusted Adjust the module stroke. Refer to Adjusting the Module Stroke under Installation. Blockage in module Disassemble and reassemble the module, removing blockages and cleaning parts as needed. Refer to Replacing a Module Component under Repair. Verify mounting of the gun for adequate bead placement.
28 Series B900-N and B900SW-N Manifold Mounted Electric Guns Repair Troubleshooting activities may identify needed repairs. Use these repair procedures as appropriate. Refer to Parts for component part numbers. WARNING: Allow only personnel with appropriate training and experience to operate or service the equipment. The use of untrained or inexperienced personnel to operate or service the equipment can result in injury, including death, to themselves and others, and damage to the equipment.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 29 1 2 3 4 5 6 Figure 8: Module replacement 1. Coil pin seal 4. Module screw 2. Coil pins 5. O-ring 3. Ground pin 6. Nozzle 4. Grasp the module at the top and bottom and carefully pull the module away from the gun to disconnect the coil pins (2) and ground pin (3). If the module resists, lightly tap the coil until the module breaks free. CAUTION: Do not rotate module. Damage to pins may result. 5.
30 Series B900-N and B900SW-N Manifold Mounted Electric Guns Install a Module See Figure 8. 1. Ensure that the coil pin seal (1) is in place. 2. Lubricate the O-ring (5) with Parker Hi-Temp lubricant (P/N 900493) and ensure that it is in good condition and in place. 3. Engage the coil pins (2) in the connector block on the gun manifold and secure the module with the screws (4) removed previously. 4. Energize the system and allow the module to warm up for 10 minutes. 5.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 31 1 2 3 0970442a 4 Figure 9: Coil replacement 1. Retaining nut 3. Module body 2. Coil and housing assembly 4. Guide tube Replace a Module Component Follow these procedures to replace (or clean) a module component that requires complete disassembly and reassembly of the module. To replace a complete module, refer to Replace a Module . To replace only the coil and housing assembly, refer to Replace the Coil and Housing Assembly.
32 Series B900-N and B900SW-N Manifold Mounted Electric Guns Disassemble the Module See Figure 10. 1. Heat the system to application temperature. The adhesive in the module must be molten for this procedure. 2. De-energize the system and disable the gun. Refer to Safety. 3. Remove the module on which a component is to be replaced. Refer to Remove a Module under Replace a Module. 4. Loosen the retaining nut (1).
Series B900-N and B900SW-N Manifold Mounted Electric Guns 33 1 2 3 4 5 6 7 8 9 0970478c 10 11 12 Figure 10: Module disassembly 1. Retaining nut 7. O-ring 2. Coil and housing assembly 8. Guide tube 3. Coil pin seal 4. Coil pin 9. Spring 10. Armature 5. O-ring 11. O-ring 6. Module body 12.
34 Series B900-N and B900SW-N Manifold Mounted Electric Guns Reassemble the Module See Figure 10. 1. Lubricate a new O-ring (5) with Parker Hi-Temp lubricant (P/N 900493) and install it in the groove in the top of the module body. CAUTION: Failure to screw the guide tube fully into the module body will result in damage to the armature and seat due to lack of stroke clearance. 2. Lubricate the top threads of the guide tube (8) with high temp silicone.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 35 6. Remove the connector mounting screws and then remove the connector. 7. If necessary, cut the connector wires back to the insulation and re-strip them to 4 mm (0.19 in.). 8. Insert the connector wires into the screw-clamp sockets and tighten the screws. 9. Press the connector into the slot in the manifold and reinstall the mounting screws. 1 2 3 4 Figure 11: Coil connector replacement 1. Socket screw 3. Mounting screw 2.
36 Series B900-N and B900SW-N Manifold Mounted Electric Guns Replace a Heater Follow this procedure to replace a heater. Refer to Parts for heater replacement kit part numbers. 1. De-energize the system and disable the gun. Refer to Safety. See Figure 12. 2. Remove the manifold cover and gasket, and disconnect the heater wires (1). 3. Gently push the old heater (2) out of the manifold by inserting a rod in the heater bore on the back of the manifold (3). 4.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 37 Replace an RTD To ensure proper temperature control, replace an RTD as a complete unit, with soldered gold contact pins and shielded wires. Refer to Parts for the RTD replacement kit part number. 1. Disconnect and lock out electrical power to the melter system. 2. Disconnect the gun electrical connector. 3. Access the gun electrical cavity. See Figure 13. 4. Cut the leads of the defective RTD (1) 25 mm (1 in.) from the RTD element (2). 5.
38 Series B900-N and B900SW-N Manifold Mounted Electric Guns Replace an RTD (contd) See Figure 14. 1 2 3 4 RTD Figure 14: Splicing RTD leads 1. Old RTD lead 3. Parallel wire splice 2. Heat shrink tubing 4. New RTD lead 6. Strip about 6 mm (0.25 in.) of insulation from the old RTD leads. 7. Cut the heat shrink tubing from the kit in half (into two 25 mm [1 in.] pieces) and slide a piece of heat shrink tubing onto each of the old RTD leads. 8. Cut the new RTD leads about 50−76 mm (2−3 in.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 39 12. If the knockout hole was used to remove the old RTD, seal it with a silicone sealant (P/N 900411). 13. Route the RTD wires through the armored conduit and back shell. Push the gold pins into positions 4 and 5 on the back shell. Pull the pins into their final positions such that they click into place. 14. Reassemble the conduit and tighten the set screws. On water-resistant guns, seal the set screws with a silicone sealant (P/N 1019259). 15.
40 Series B900-N and B900SW-N Manifold Mounted Electric Guns Replace a Nozzle Follow this procedure to replace a nozzle. The adhesive in the system must be heated to application temperature before a nozzle is removed. 1. Heat the system to application temperature. 2. Relieve system pressure and disable the gun. Refer to Safety. See Figure 15. 1 2 Figure 15: Nozzle replacement 1. Module seat 2. Nozzle 3. Use a 17 mm (11/16 in.) wrench to hold the module seat (1) stationary, and use a 14 mm (9/16 in.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 41 Using the Illustrated Parts Lists To order parts, call the Nordson Customer Service Center or your local Nordson representative. Use these four-column parts lists, and the accompanying illustrations, to describe and locate parts correctly. The following chart provides guidance for reading the parts lists. The number in the Item column corresponds to the circled item number in the parts list illustration.
42 Series B900-N and B900SW-N Manifold Mounted Electric Guns B900-N Gun Parts See Figure 16. Item Part — 1031733 1 2 Description Quantity — Gun, B900-N, 230V, DuraBlue 1031890 S Benchmount manifold 1 1029816 S Heater service kit 1 3 1032416 S Module assembly 1 4 342272 S Tube fitting, 3/8 X 9/16-18, str.thd.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 43 2 9 7 15 8 10 3 11 16 6 5 12 13 7 14 14 1 4 Figure 16: Exploded View of B900-N Gun E 2006 Nordson Corporation Part 1041221B
44 Series B900-N and B900SW-N Manifold Mounted Electric Guns B900SW-N Gun Parts See Figure 17. Item Part — 1031734 1 2 Description Quantity Gun, B900SW-N, 230V, DuraBlue — 1031890 S Benchmount manifold 1 1029816 S Heater service kit 1 3 1032618 S Module assembly 1 4 342272 S Tube fitting, 3/8 X 9/16-18, str.thd.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 45 3 11 16 10 9 2 20 21 17 4 7 8 13 12 22 5 6 19 1 14 15 18 Figure 17: Exploded View of B900SW-N Gun E 2006 Nordson Corporation Part 1041221B
46 Series B900-N and B900SW-N Manifold Mounted Electric Guns Replacement Modules for B900 Guns See Figure 18. Table 5 Module and Module Parts Item Part Quantity Note 1 1032618 Module, B900SW-N, 240 VAC Part — A 1032416 Module, B900-N, 240 VAC — A Nut, lock, 3/8-32 x 0.093 1 2 984444 3 1029801 Kit, coil and housing assembly, 240 V 1 4 1027905 Seal, coil pin 1 5 940073 O-ring, Viton, 0.145 ID x 0.070 W in.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 47 1 6 7 2 3 4 5 Figure 18: Module parts E 2006 Nordson Corporation Part 1041221B
48 Series B900-N and B900SW-N Manifold Mounted Electric Guns Module Rebuild Kits See Figure 19. Table 6 Rebuild Kit and Component Part Numbers Item Part — 1029811 Description Kit, module body 3/ -32 8 Quantity — 1 984444 Nut, lock, 2 1027905 Seal, coil 1 3 940121 O-ring, Viton, 0.364 ID x 0.070 W in. 1 4 ------ Body, module 1 5 981975 Screw, socket, cap, 10-32 x 1.125 in. 2 O-ring, Viton, 0.145 ID x 0.070 W in. 1 Kit, guide tube — Nut, lock, 3/8-32 x 0.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 49 1 0970441 2 3 4 5 6 7 8 9 10 11 Figure 19: Module rebuild kit parts (B900-N shown) E 2006 Nordson Corporation Part 1041221B
50 Series B900-N and B900SW-N Manifold Mounted Electric Guns Lubricants and Sealants Part Number Description 900493 Parker Hi-Temp lubricant 900411 Sealant, RTV 165415 Heater lubricant 900298 Heat sink compound 1019259 Silicone sealant (waterwash units only) Technical Data Specifications Parameter Specification Source voltage 240 VAC Module coil voltage 240 VAC Module coil wattage 90 W Heater wattage 150 W Hose connections Male, 37° JIC, in no.
Series B900-N and B900SW-N Manifold Mounted Electric Guns 51 Gun Heater Resistance Voltage 240 Heater Quantity 1 Heater Wattage Ohms 150 369−399 Module Coil Resistance Coil Voltage 240 E 2006 Nordson Corporation Ohms 285−335 Part 1041221B
52 Series B900-N and B900SW-N Manifold Mounted Electric Guns Resistance Values Unless otherwise specified, resistance values are measured at 20 _C + 5 _C (68 _F + 10 _F). Nickel RTD Temperature in _C Resistance in Ohms Temperature in _F Figure 20: RTD resistance vs.
