9- Section 9 NOTE: This section applies to applicators with MB200 modules. Table of Contents.................................................... 9- Introduction................................................ 9-3 Overview........................................... 9-4 Pattern Control Troubleshooting.............................. 9-6 Service............................................. 9-0 Synchronizing Multi- Applicator Adhesive Output....... 9-0 Replacing a....................................... 9-2 Remove the.................................... 9-2 Install the...................................... 9-3 Rebuilding a...................................... 9-3 Prepare for Rebuild............................. 9-3 Disassemble the................................ 9-4 Assemble the Upper Components................. 9-7 Assemble the Lower Components................. 9-20 Install the Air Cap...................................... 9-2 Restore the System to Normal Operation.................. 9-22 Nozzle Service............................................. 9-23 Removing a Nozzle....................................... 9-23 Installing a Nozzle........................................ 9-24 Cleaning Nozzles......................................... 9-25 Parts...................................................... 9-29 MB200 Parts...................................... 9-30 AOSC......................................... 9-30 AOAC......................................... 9-32 Adapter Plate Parts....................................... 9-34 Nozzle Part Numbers..................................... 9-35 Blank Nozzle.......................................... 9-35 High-Density Nozzle, Full Coverage...................... 9-36 High-Density Nozzles, Partial Coverage, Center Orientation. 9-36 High-Density Nozzles, Partial Coverage, Right Orientation... 9-36 High-Density Nozzles, Partial Coverage, Left Orientation.... 9-36 Low-Density Nozzle, Full Coverage....................... 9-37 Low-Density Nozzles, Partial Coverage, Right Orientation... 9-37 Low-Density Nozzles, Partial Coverage, Left Orientation.... 9-37 Service Kits....................................... 9-38 Recommended Spare Parts and Supplies................... 9-40
9-2 (contd.) Technical Data.............................................. 9-4 Applicator Specifications.................................. 9-4 Torque Specifications..................................... 9-42 Dimensions....................................... 9-42
9-3 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. Introduction This section provides troubleshooting, repair, parts, and specification information for applicators with meltblown (MB200) modules. The MB200 module is designed to dispense fine-fiber adhesive patterns onto a product. MB200 modules have an adhesive nozzle that is secured to the module by a quick-release mechanism. Heated pattern air flows through the module and into the nozzle, causing the adhesive to form a fine-fiber pattern. There are two types of MB200 module: air-open, spring-close (AOSC) and air-open, air-close (AOAC). AOSC modules have an adjustable air cap; AOSC module have a fixed air cap. 2 42030006 Figure 9- MB200 modules. AOSC module, adjustable 2. AOAC module, fixed
9-4 Overview Dispensing modules apply adhesive to a product. All modules are air-actuated (or air-open), meaning that an air supply controlled by a solenoid valve is required to open the module. The actuating air lifts the needle-and-piston assembly inside the module, thus opening the module and allowing adhesive to flow through the nozzle onto the product. s are then either spring-closed or air-closed: In air-open, spring-close (AOSC) modules, a spring returns the needle-and-piston assembly to the closed position, thus closing the module. In air-open, air-close (AOAC) modules, the actuating air (rather than a spring) returns the needle-and-piston assembly to the closed position. A separate air supply is used to supply pattern air to the module; this air enters the pattern air inlet and is directed onto the adhesive exiting the nozzle, creating the desired spray pattern. Figure 9-2 shows the flow of adhesive and air through an AOSC and an AOAC module. Figure 9-3 shows the key parts of a module. 2 Actating air inlet (air-close) Spring close Actuating air inlet (air-open) Adhesive inlet Pattern air inlet 42030005 Figure 9-2 Flow of adhesive and air through MB200 modules. AOSC module, adjustable 2. AOAC module, fixed
9-5 3 4 2 5 6 9 8 7 42030007 Figure 9-3 Key parts of an MB200 module (adjustable module shown). mounting screws 6. Nozzle O-ring 2. body 7. Nozzle 3. Air cap assembly (adjustable) 8. Nozzle-retaining clamp 4. O-rings 9. Nozzle-retaining clamp screw 5. seat assembly
9-6 Pattern Control Troubleshooting Use these troubleshooting tables if you are experiencing adhesive pattern control problems. For all other troubleshooting, refer to Section 6, Troubleshooting. NOTE: To aid in detecting pattern control problems, direct a strobe light on the adhesive as it flows onto the product. Problem Possible Cause Corrective Action Example Adhesive flow not cutting off properly, causing a poor adhesive pattern Beginnings and ends of adhesive patterns on multi-module applicator not aligned Worn or charred module and/or seat System pressure too high (Adjustable modules only) s not synchronized (loading screws not properly adjusted) Replace or rebuild the module. To replace a module, refer to Replacing a. To rebuild a module, order a module rebuild kit and follow the instructions in the kit. Refer to Service Kits. Decrease the system pressure. Refer to the melter manual. Adjust the module loading screws. Refer to Synchronizing Multi- Applicator Adhesive Output. Pattern off-center (skewed) or gaps in pattern End pattern oriented toward center of applicator Pattern breaking up (adhesive droplets thrown from stream or overspray) Blocked air passage(s) Blocked adhesive passage(s) Air currents in area near module Adhesive and/or pattern air temperature too hot or pattern air pressure too high Remove the nozzle and use a pin-type probe to clean the blocked air passage(s). Remove the nozzle and use a pin-type probe to clean the blocked air passage(s). Eliminate the air current or add a blank module that provides only pattern air next to the end module. Adjust the applicator temperature and pattern air pressure settings to the last good run settings; then check the adhesive output. Too long Too short Desired length Continued...
9-7 Problem Pattern breaking up (adhesive droplets thrown from stream or overspray) (contd) Possible Cause Adhesive output rate too low Corrective Action Increase the system pressure or troubleshoot the output rate problem at the melter. Refer to the melter manual. Check for blockages in the nozzle, applicator, or hose. Refer to Checking for Blockages in Section 6, Troubleshooting. Replace the nozzle. Example Damaged nozzle (adhesive leaking into air passages and being blown into the pattern) Nozzle too far from product Shorten the distance between the nozzle and the product. Replace the nozzles on the modules that are producing adhesive streams that interfere with the other module adhesive streams. Install an adapter plate to move the module away from the heated air manifold, as shown in Figure 9-4. Refer to Adapter Plate Parts under Parts for the adapter plate part number. Adjust the applicator temperature and air pressure settings to the last good run settings and/or check the applicator mounting height; then check the adhesive output. Verify that the nozzle part number is correct. Check the nozzle for damage and replace if needed. Remove the module and check for blockage in the pattern air path. Adjust the applicator temperature and air pressure settings to the last good run settings and/or check the applicator mounting height; then check the adhesive output. Adhesive patterns overlapping and interfering with one another Heat from heated air manifold distorting pattern Individual adhesive strands squiggle from adhesive passages on all or most modules Adhesive and/or pattern air temperature too cool or pattern air pressure too low One pattern too narrow (or streaks in pattern) Incorrect or damaged nozzle; possible restriction in heated air manifold or pattern air input on module Fibers too fine, cobwebbing on machine surfaces Spray parameters out of adjustment; pattern air pressure too high Example not available. Continued...
9-8 Pattern Control Troubleshooting (contd) Problem Possible Cause Corrective Action Example Fibers too coarse, pattern too open Irregular pattern or adhesive leakage on one module Spray parameters out of adjustment; pattern air pressure too low Nozzle overtightened and distorted or O-ring between module seat and nozzle missing Adjust the applicator temperature and air pressure settings to the last good run settings and/or check the applicator mounting height; then check the adhesive output. Replace the nozzle or install a new O-ring. Example not available. seat O-ring 2 5 mm (0.60 in.) 3 2.7 mm (0.50 in.) Figure 9-4 Adapter plate installed on an MB200 applicator. Adhesive manifold 3. Heated air manifold 2. Adapter plate 42030000
9-9 This page intentionally left blank.
9-0 Service This part of Section 9 provides module-related service procedures. Synchronizing Multi- Applicator Adhesive Output NOTE: This procedure applies only to adjustable modules. Fixed modules are not adjustable. A loading screw located in the top of the modules can be used to fine-tune the alignment of the adhesive patterns of multi-module applicators, as shown in Figure 9-5. CAUTION: Do not use the loading screw to increase or decrease the amount of adhesive output (flow rate). To change the flow rate, adjust the melter pump speed. 2 3 4 Figure 9-5 Results of module loading screw adjustment. Target area 2. Pattern too long 3. Pattern too short 4. Desired pattern length 420305003
9- See Figure 9-6. To adjust a loading screw, loosen the locking nut (2) at the top of the module and hold it loosely in place with a wrench while turning the loading screw () with a screwdriver; then tighten the locking nut. Turn the loading screw as follows: To decrease the length of a pattern, turn the loading screw clockwise. This shortens the length at both ends of the pattern. To increase the length of a pattern, turn the loading screw counterclockwise. This increases the length at both ends of the pattern. NOTE: If the module loading screw is tightened too much, the module will not dispense any adhesive. To return a loading screw to the factory setting, loosen the locking nut, turn the screw clockwise until it bottoms out, back the screw out three full turns (counterclockwise), and tighten the locking nut. 2 24 mm (0.94 in.) Figure 9-6 Location of the module loading screw and locking nut. Loading screw 2. Locking nut 42000008
9-2 Replacing a You will need the following items: appropriate tools, including a torque wrench drain pans and disposable rags replacement module replacement O-rings (if needed) O-ring lubricant (if needed) anti-seize lubricant NOTE: Refer to Parts for the part numbers of parts, tools, and supplies. NOTE: s can be rebuilt. To rebuild a module, order the appropriate module rebuild kit and follow the instructions in the kit. For kit part numbers, refer to Service Kits under Parts. Remove the. Heat the system to application temperature. 2. Relieve system pressure. Refer to Relieving System Pressure in Section 0, Filter. 3. Trigger the applicator solenoid valves to relieve any remaining pressure. 4. Shut off the module-actuating air. 5. Decrease the pattern air pressure. Leave just enough air pressure to prevent adhesive from entering the pattern air outlet. 6. See Figure 9-7. Remove the module mounting screws () and then remove the module. Remove the module O-rings (2) for inspection. 2 42030008 Figure 9-7 Replacing a module. Mounting screws 2. O-rings
9-3 Install the. Wipe off any adhesive on the applicator, especially around the air passages. 2. Ensure that the module O-rings are lubricated and properly inserted in the O-ring bores on the back of the replacement module. 3. Coat the module mounting screws with anti-seize lubricant and use them to secure the new module to the applicator. Tighten the screws to 3.4 N m (30 in.-lb). 4. Restore the system to normal operation. For best results, tighten the module mounting screws again after the applicator reaches application temperature. Rebuilding a Two types of module rebuild kit are available: one type includes the needle-and-piston assembly and the other does not. In addition, several other module service kits are offered. Refer to Service Kits under Parts. NOTE: Because the module rebuild kits include generic instructions, this procedure is provided for module-specific reference as needed. You will need the following items: hex wrenches and screwdrivers module rebuild tools - retaining ring removal tool, part 27282, or small probe set - base tool, part 272824 - seal tool, part 272823 - piston insertion tool, part 274973 hot water or a heat gun small ruler or measuring tape applicable module service kits replacement O-rings for the back of the module PTFE paste neat s foot oil O-ring lubricant NOTE: Refer to Parts for the part numbers of parts, tools, and supplies. Prepare for Rebuild. To ease module disassembly, ensure that the adhesive in the system is heated at least to the softening point. 2. Remove the nozzle from the module to be rebuilt. Refer to Removing a Nozzle later in this section. 3. Remove the module from the applicator. Refer to Remove the earlier in this section.
9-4 Disassemble the. See Figure 9-8. Remove and discard the O-rings from the back of the module. 42000038 Figure 9-8 Removing the O-rings located on the back of the module 2. See Figure 9-9. Remove the air cap assembly (2) from the top of the module. The large compression spring (3) may fall out when your remove the assembly. 2 3 Figure 9-9 Removing the air cap assembly (adjustable air cap shown). Air cap attachment screw 3. Large compression spring 2. Air cap assembly 4200005 3. See Figure 9-0. Remove the seat (4) and then remove the O-ring (3) from the seat. Discard the O-ring. 4. Remove the small compression spring (2) and lower seal support disk () from the bottom of the module body. You may need to use the retaining ring removal tool (or a similar tool). 2 3 4 Figure 9-0 5 42030002 Removing the seat, O-ring, small compression spring, and lower seal support disk. Lower seal support disk 2. Small compression spring 3. Seat O-ring 4. Seat 5. Seat screws
9-5 5. See Figure 9-. Remove the needle-and-piston assembly from the top of the module body. 42000040 Figure 9- Removing the needle-and-piston assembly 6. See Figure 9-2. Use the retaining ring removal tool (or a similar tool) to remove the retaining ring from the module body. 4200004 Figure 9-2 Removing the retaining ring 7. See Figure 9-3. Remove the upper seal support disk () and the upper (2) and lower (3) hat seals from the top of the module body. 2 3 Figure 9-3 Removing the upper seal support disk and the hat seals. Upper seal support disk 3. Lower hat seals 2. Upper hat seals 42000042
9-6 Disassemble the (contd) CAUTION: Risk of equipment damage. Do not scrape the inside of the module body when using a tool to remove the spring seal. 8. See Figure 9-4. Remove the spring seal by turning the module body over and using the retaining ring removal tool (or a similar tool). 42000043 Figure 9-4 Removing the spring seal The module is now fully disassembled. Be sure to discard any components that will be replaced and have all new components ready for module assembly.
9-7 Assemble the Upper Components WARNING: Do not change the module configuration during reassembly. Substitution of O-rings or seals from other manufacturers, or the combination of a new seal with a badly worn needle, can cause adhesive to leak into the pneumatic section or out from the front of the module.. See Figure 9-5. Place the module body (), with the pneumatic section pointing upward, on the base tool (2) supplied with the rebuild kit. 2 Figure 9-5 body on the base tool. body 2. Base tool 42000044 2. See Figure 9-6. Lubricate the seal portion of a new needle-and-piston assembly with neat s foot oil. 3. Lay the piston insertion tool (supplied with the rebuild kit) on a flat surface with the inner taper facing up. Then push the piston end of the needle-and-piston assembly straight into the tool until the seal bottoms out against the three tabs in the tool. 42400026 Figure 9-6 Piston insertion tool on the needle-and-piston assembly 4. Use a heat gun or hot plate to warm the hat seals to approximately 93 C (200 F)] to soften them. Use tweezers to handle the hat seals after softening them.
9-8 Assemble the Upper Components (contd) 5. See Figure 9-6. Assemble the following onto the needle-and-piston assembly: the seal tool (2) retaining ring with tangs down (3) upper seal support disk (4) two hat seals pointing toward the piston tool (5) two hat seals pointing toward the needle ball (6) 6 5 4 3 2 42000045 Figure 9-7 Assembling the seal tool, retaining ring, seal support disk, and hat seals on the needle-and-piston assembly CAUTION: Pushing the needle-and-piston off-center may damage the seals or crimp the top of the assembly, causing premature module failure. 6. See Figure 9-8. Install the needle-and-piston assembly (including the retaining ring, seal support disk, and hat seals) in the module body by pushing on the CENTER of the piston insertion tool/needle-and-piston assembly until you feel the needle bottom out. 42000046 Figure 9-8 Installing the needle-and-piston assembly and other components
9-9 Assemble the Upper Components (contd) 7. See Figure 9-9. Pull up on the piston insertion tool just enough to remove the seal tool. The seal tool is slotted to permit removal this way. 42000047 Figure 9-9 Removing the seal tool 8. See Figure 9-20. Use the base tool to push the needle-and-piston assembly out of the piston insertion tool and into the module body until you feel the needle bottom out. The piston insertion tool should then be loose. 42000048 Figure 9-20 Pushing the piston insertion tool/needle-and-piston assembly into the module
9-20 Assemble the Lower Components. See Figure 9-2. Insert the following in the bottom of the module body: spring seal () with the spring side pointing up (towards the bottom of the module). lower seal support disk (2) 2 42000049 Figure 9-2 Inserting the spring seal, seal support disk, and compression spring. Spring seal 2. Lower seal support disk 2. See Figure 9-22. Coat the seat O-ring (3) with O-ring lubricant and install it on the seat (2). 3. Coat the seat screws () with PTFE paste. 4. Insert the small compression spring (4) inside the module body and then install the seat to compress and secure the spring. Alternate tightening of the seat screws to.8 2.0 N m (6 8 in.-lb). 2 3 4 Figure 9-22. Seat screw 2. Seat Installing the small compression spring and seat 3. Seat O-ring 4. Small compression spring 420300022
9-2 Install the Air Cap. See Figure 9-23. Position the air cap assembly (2) and large compression spring (3) on the module body. Coat the air cap screws () with PTFE paste and use them to secure the air cap to the module body. Tighten the screws to.5.7 N m (3 5 in.-lb). 2 3 4200005 Figure 9-23. Air cap screw 2. Air cap assembly Installing the air cap assembly (adjustable air cap shown) 3. Large compression spring 2. See Figure 9-24. To adjust a loading screw, loosen the locking nut (2) at the top of the module and hold it loosely in place with a wrench while turning the loading screw () with a screwdriver. Adjust the loading screw until it is 24 mm (0.94 in.) from the top of the loading screw to the base of the air cap. Tighten the locking nut to maintain the screw position. 2 24 mm (0.94 in.) Figure 9-24 Adjusting the module loading screw. Loading screw 2. Locking nut 42000008
9-22 Restore the System to Normal Operation. See Figure 9-25.Coat new module O-rings with O-ring lubricant and place them in the O-ring bores on the back of the module. 42000052 Figure 9-25 Installing the module O-rings 2. Reinstall the module. Refer to Install the earlier in this section. 3. Reinstall the nozzle. Refer to Installing a Nozzle later in this section. 4. Restore the system to normal operation.
9-23 Nozzle Service This part of Section 9 provides nozzle-related service procedures. Removing a Nozzle The nozzle is secured to the module by a quick-release mechanism. You will need the following items: appropriate tools, including a torque wrench drain pans and disposable rags new nozzle (if needed) NOTE: Refer to Parts for the part numbers of parts, tools, and supplies.. Heat the system to application temperature. 2. Relieve system pressure. Refer to Relieving System Pressure in Section 0, Filter. 3. Trigger the applicator solenoid valves to relieve any remaining pressure. 4. Shut off the module-actuating air. 5. Decrease the pattern air pressure. Leave just enough air pressure to prevent adhesive from entering the pattern air outlet on the module. 6. See Figure 9-26. Loosen the nozzle-retaining screw () and then carefully remove the nozzle (2). 2 Figure 9-26 Removing a nozzle. Nozzle-retaining screw 2. Nozzle 420300006
9-24 Installing a Nozzle. Clean the mating surfaces inside the module seat where the nozzle will be installed. 2. See Figure 9-27. Ensure that the O-ring (3) located between the module seat and the nozzle is properly lubricated and inserted in the O-ring bore. 3. Carefully position the nozzle (2) in the module seat and tighten the nozzle-retaining screw () to.4 2.0 N m (2 8 in.-lb). 4. Restore the system to normal operation. 3 2 42030004 Figure 9-27 Installing a nozzle. Nozzle-retaining screw 2. Nozzle 3. O-ring
9-25 Cleaning Nozzles Nozzles should be cleaned weekly or as needed to prevent clogging. You will need the following items: appropriate tools, including a torque wrench nozzle cleaning kits cleaning supplies (refer to Table 9-) drain pans and disposable rags O-ring lubricant NOTE: Refer to Parts for the part numbers of parts, tools, and supplies.. Remove the nozzles. Refer to the Removing a Nozzle earlier in this section. 2. Clean the nozzles using one of the Nordson-recommended methods shown in Table 9-. Use only cleaning agents recommended by the adhesive supplier. WARNING: Risk of explosion or fire. Follow the safety guidance and heating recommendations on the Material Safety Data Sheets (MSDSs) for your adhesives and nozzle-cleaning solutions. WARNING: Risk of explosion or fire. Use a controlled heating device, such as a thermostatically controlled hot plate, to heat cleaning fluid, including Nordson Type-R fluid. CAUTION: Risk of equipment damage. Do not use a wire brush (or a brush with bristles harder than the nozzle) to clean nozzles. Cleaning Method Citrus-based solution and ultrasonic tank NOTE: This is the most thorough method. Table 9- Nozzle Cleaning Methods Procedure a. Place the nozzles in citrus-based solvent/degreasing solution and soak them overnight or for approximately 4 hours. This dissolves and loosens the adhesive and char buildup. b. Remove the nozzles from the citrus-based solvent/degreasing solution and place them in an alkaline solution heated to the appropriate temperature (refer to the MSDS) in an ultrasonic tank. Soak the nozzles for approximately 0 minutes. This will remove adhesive and char from the orifices. c. Scrub the nozzles with a soft, non-metallic brush to remove debris. d. Gently blow air through the nozzle orifices from the mounting side of the nozzle. Nordson Type-R fluid a. Place the nozzles in a controlled heating device containing Nordson Type-R fluid and heat it above the melting point of the adhesive (refer to the MSDS). b. Scrub the nozzles with a soft, non-metallic brush to remove debris. Continued...
9-26 Cleaning Nozzles (contd) Table 9- Nozzle Cleaning Methods (contd) Cleaning Method Procedure Electric heat gun a. Heat the nozzles with a flameless electric heat gun. b. Scrub the nozzles with a soft, non-metallic brush to remove debris. Ultrasonic tank a. Place the nozzles in an alkaline solution heated to the appropriate temperature (refer to the MSDS) in an ultrasonic tank. Soak the nozzles for approximately 0 minutes. b. Scrub the nozzles with a soft, non-metallic brush to remove debris. Oven NOTE: This method will cause discoloration of unplated brass nozzles. This discoloration is cosmetic only and will not adversely affect nozzle performance. NOTE: This method is not recommended for color-coded nozzles (such as Saturn and CF steel unibody nozzles) because it will remove the color from the nozzles. c. Gently blow air through the nozzle orifices from the mounting side of the nozzle. WARNING: Risk of explosion, fire, or toxic vapor release. Depending on the type of adhesive and/or organic solvent used with the nozzles, heating them in an oven can cause a hazardous event. Before using an oven to clean nozzles, consult with the oven manufacturer about the viability of this method and the safety risks. Follow the manufacturer s recommendations. WARNING: Use the oven heating controls to keep the oven at the desired temperature. Do not use an oven that does not have heating controls. WARNING: The heating temperature and time may need to be adjusted based on the oven type, the adhesive type, and the amount of char buildup on the nozzles. Nordson Corporation recommends testing this procedure on discarded nozzles prior to using it on good nozzles. CAUTION: Risk of equipment damage. Remove O-rings before cleaning nozzles in an oven. Failure to do so can cause a chemical reaction that will permanently damage the nozzles. a. Ensuring that O-rings have been removed from the nozzles, place them in an electric oven heated to approximately 385 C (725 F). Allow the nozzles to bake for approximately 3 4 hours. b. Turn off the oven and allow the nozzles to cool; then remove the nozzles. WARNING: Risk of fire. Use a heat-proof cloth to clean nozzles. Even cotton can burn in high-temperature conditions. WARNING: Risk of equipment damage. Handle nozzles carefully to avoid denting the orifices, which can degrade the adhesive pattern. c. Wipe the nozzles with a soft cloth and then gently blow air through the nozzle orifices from the mounting side of the nozzle.
9-27 3. If there is any remaining char buildup on the nozzles, gently scrape the char from the nozzles. CAUTION: Risk of equipment damage. Use of an open torch, drill, or broach can damage a nozzle. Use only a pin-type probe to clean nozzle orifices and do not twist the probe inside the nozzle. 4. If cleaning of the nozzle orifices is necessary, use a pin-type probe that is one size smaller than the orifice size: insert the probe in the direction opposite the adhesive flow and then remove the probe without twisting it, as shown in Figure 9-28. NOTE: Nordson offers two nozzle cleaning kits that contain a holder and several probe sizes. Refer to Recommended Spare Parts and Supplies under Parts. 430400003 Figure 9-28 Correct direction to insert a pin-type probe into a nozzle 5. Reinstall the nozzles. Refer to Installing a Nozzle earlier in this section. 6. Restore the system to normal operation.
9-28 This page intentionally left blank.
9-29 Parts This part of Section 9 provides detailed parts lists for the module and nozzles. For other applicator parts, including a reference drawing and bill of materials specific to your applicator, refer to Section 8, Parts. 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. A dash in this column indicates that the item is an assembly. The number in the Part column is the Nordson part number you can use to order the part. A series of dashes indicates that the part is not saleable. In this case, you must order either the assembly in which the part is used or a service kit that includes the part. The Description column describes the part and sometimes includes dimensions or specifications. The Note column contains letters that refer to notes at the bottom of the parts list. These notes provide important information about the part. The Quantity column tells you how many of the part is used to manufacture the assembly shown in the parts list illustration. A dash or AR in this column indicates that the amount of the item required in the assembly is not quantifiable. Item Part Description Quantity Note 0000000 Assembly A 000000 Part of assembly A 2 A 2 - - - - - - Part of item 3 0000000 Part of item 2 AR NS 000000 Part of item 3 2 NOTE A: Important information about item AR: As Required NS: Not Shown
9-30 MB200 Parts There are two types of MB200 module: air-open, spring-close (AOSC) and air-open, air-close (AOAC). AOSC See Figure 9-29. Many of the module parts are available in a service kit. Refer to Service Kits later in this section. Item Part Description Quantity Note 327957, MB200, AOSC A 272288 Screw, loading 2 272289 Nut, locking, / 2-28 3 2762 Air cap, adjuster 4 44892 Spring, compression, 0.420 x 0.750 in. 5 - - -- - - Needle and piston assembly 6 940 O-ring, Viton, 0.30 ID x 0.070 W in. 3 7 - - - - - - Body, module 8 - - - - - - Seat, with carbide 9 327933 Clamp, nozzle-retaining 0 98658 Screw, low head, socket, 8-32 x 0.375 2 987 Screw, socket, 0-32 x.250 2 2 98758 Screw, fillister, 6-32 x 0.625 2 3 900223 Lubricant, O-ring, Parker, 4 oz AR 4 7544 Seal, spring, / 8 x 7 / 6 x 3 / 32, PTFE 5 9402 O-ring, Viton, 0.364 ID x 0.070 W in. 6 986502 Retaining ring, internal, 43, push-on 7 98302 Disc, seal support 2 8 - - - - - - Seal, hat, unformed 4 B 9 900290 Oil, neat s foot AR 20 987022 Spring, compression,.46 x 0.360 OD x 0.065 in. 2 982059 Screw, socket, M4 x 8 2 22 983402 Washer, flat, narrow, M4 2 23 327929 Spring, nozzle-retaining clamp 2 24 900470 Adhesive, threadlocking AR 25 940060 O-ring, Viton, 0.25 x 0.250 x 0.063 in. 26 - - - - - - Nozzle, meltblown C NOTE A: Order this part for a complete replacement module. s can also be rebuilt. For module rebuild kit part numbers, refer to Service Kits later in this section. B: For a formed hat seal, order part 750553. C: Nozzles must be ordered separately. Refer to Nozzle Part Numbers later in this section. AR: As Required
9-3 2 2 3 20 5 9 6 7 8 6 3 7 4 7 4 5 3 6 3 9 23 2 22 25 3 26 0 42030003 Figure 9-29 MB200 AOSC module parts
9-32 AOAC See Figure 9-30. Many of the module parts are available in a service kit. Refer to Service Kits later in this section. Item Part Description Quantity Note 327930, MB200, AOAC A 223568 Assembly, hat seal 2 87990 Cap, module 3 87995 Spring, compression, 0.420 x 0.750 in. 4 - - - - - - Needle-and-piston assembly 5 940 O-ring, Viton, 0.30 ID x 0.070 in. 4 6 - - - - - - Body, module 7 - - - - - - Seat, with carbide 8 327933 Clamp, nozzle-retaining 9 983402 Washer, flat, narrow, M4 0 987 Screw, socket, 0-32 x.250 in. 2 982695 Screw, socket, 6-32 x.25 in. 2 2 900223 Lubricant, O-ring, Parker, 4 oz AR 3 7544 Seal, spring, / 8 x 7 / 6 x 3 / 32 in. 4 9402 O-ring, Viton, 0.364 ID x 0.070 in. 5 986502 Retaining ring, internal, 43, push-on 6 98302 Disc, seal support 2 7 - - - - - - Seat, hat, unformed 4 B 8 900290 Oil, neat s foot AR 9 98302 Washer, lock, split, #6 2 20 44892 Spring, compression, 0.420 x 0.500 in. 2 982059 Screw, socket, M4 x 8 2 22 327929 Spring, nozzle-retaining clamp 2 23 98658 Screw, low head, socket, 8-32 x 0.375 in. 2 24 940060 O-ring, Viton, 0.25 ID x 0.0250 x 0.063 in. 25 900470 Adhesive, threadlocking AR 26 - - - - - - Nozzle, meltblown C NOTE A: Order this part for a complete replacement module. s can also be rebuilt. For module rebuild kit part numbers, refer to Service Kits later in this section. B: For a formed hat seal, order part 750553. C: Nozzles must be ordered separately. Refer to Nozzle Part Numbers later in this section. AR: As Required
9-33 2 9 5 2 2 3 4 8 5 6 8 5 2 6 0 3 6 2 4 20 5 2 2 9 22 24 2 26 23 42030002 Figure 9-30 MB200 AOAC module parts
9-34 Adapter Plate Parts See Figure 9-3. If heat from the heated air manifold is distorting the adhesive pattern, this adapter can be installed to alleviate the problem. Item Part Description Quantity Note 34042 Adapter plate assembly - - - - - - Plate, adapter 2 9832 Screw, socket, 0-32 x 0.625 in. 2 NS 940 O-ring, Viton, 0.30 ID x 0.070 W in. 3 NS: Not Shown 2 76.2 mm (3.0 in.) Figure 9-3 Adapter plate parts 2.7 mm (0.5 in.) 4203000
9-35 Nozzle Part Numbers Normally, the choice of nozzle for your applicator will have already been made by you and your Nordson representative. Refer to your sales order to determine what nozzle choices were made. The part numbers for all available nozzles are provided here. Nozzles may be full coverage or partial coverage nozzles. They may also be high or low-density (high-density nozzles apply a heavier coating weight than low-density nozzles): See Figure 9-32. A full coverage, high-density nozzle has 22 openings that extend along the entire length of the nozzle. A full-coverage, low-density nozzle has 8 openings that extend along the entire length of the nozzle. The adhesive coating width is 22 mm. A partial coverage high- or low-density nozzle has openings through only part of the nozzle, leaving a closed area at either one or both ends. A partial coverage nozzle may be oriented to apply adhesive starting at the left, right, or center of the nozzle. The coating width ranges from 3.5 7.5 mm, depending on the number of openings. A B 2 Figure 9-32 Full coverage low-density (A) and high-density (B) nozzles. Air openings 2. Adhesive openings 43040000 Blank Nozzle Part Number of Openings Coating Width 327940 None Not applicable
9-36 High-Density Nozzle, Full Coverage Part Number of Openings Coating Width 327940 22 (full) 22 mm High-Density Nozzles, Partial Coverage, Center Orientation Part Number of Openings Coating Width 758080 8 8 mm 758245 0 0 mm High-Density Nozzles, Partial Coverage, Right Orientation See Figure 9-33. Part Number of Openings Coating Width 327950 7 7 mm 327952 mm 327954 6 6 mm High-Density Nozzles, Partial Coverage, Left Orientation See Figure 9-33. Part Number of Openings Coating Width 32795 7 7 mm 327953 mm 327955 6 6 mm A B Figure 9-33 Left-oriented (A) and right-oriented (B) nozzles 430400002
9-37 Low-Density Nozzle, Full Coverage Part Number of Openings Coating Width 29678 8 22 mm Low-Density Nozzles, Partial Coverage, Right Orientation See Figure 9-33. Part Number of Openings Coating Width 296705 3 mm 296707 2 6 mm 296709 3 8 mm 2967 4 mm 29673 5 4 mm 29675 6 7 mm 29677 7 9 mm Low-Density Nozzles, Partial Coverage, Left Orientation See Figure 9-33. Part Number of Openings Coating Width 296704 3 mm 296706 2 6 mm 296708 3 8 mm 29670 4 mm 29672 5 4 mm 29674 6 7 mm 29676 7 9 mm
9-38 Service Kits See Figure 9-34. Other service kits are available. Contact your Nordson representative for information. Item Part Description Quantity Note 27288 Kit, module rebuild, one module, with needle-and-piston assembly (rebuilds one module) 5070 Assembly, needle-and-piston 2 986502 Retaining ring, internal, 43, push-on 3 98302 Disk, seal support 3 4 750553 Seal, hat, formed 4 5 7544 Seal, spring, / 8 x 7 / 6 x 3 / 32 in., PTFE 6 940 O-ring, Viton, 0.30 ID x 0.070 W in. 3 7 9402 O-ring, Viton, 0.364 x ID x 0.070 W in. 8 44892 Spring, compression, 0.420 x 0.500 in. 9 272823 Tool, seal 0 27282 Tool, retaining ring removal 272824 Tool, base 2 274973 Tool, piston insertion NS 272287 Gasket A NS 04723 Instructions, module rebuild 42753 Kit, module rebuild, ten modules, with needle-and-piston assembly (rebuilds ten modules) 5070 Assembly, needle-and-piston 0 2 986502 Retaining ring, internal, 43, push-on 0 3 98302 Disk, seal support 30 4 750553 Seal, hat, formed 40 5 7544 Seal, spring, / 8 x 7 / 6 x 3 / 32 in., PTFE 0 6 940 O-ring, Viton, 0.30 ID x 0.070 W in. 20 7 9402 O-ring, Viton, 0.364 x ID x 0.070 W in. 0 8 44892 Spring, compression, 0.420 x 0.500 in. 0 9 272823 Tool, seal 0 27282 Tool, retaining ring removal 272824 Tool, base 2 274973 Tool, piston insertion NS 272287 Gasket 0 A NS 04723 Instructions, module rebuild 644 Kit, module rebuild, ten modules, without needle-and-piston assembly (rebuilds ten modules) 2 986502 Retaining ring, internal, 43, push-on 0 3 98302 Disk, seal support 30 4 750553 Seal, hat, formed 40 5 7544 Seal, spring, / 8 x 7 / 6 x 3 / 32 in., PTFE 0 6 940 O-ring, Viton, 0.30 ID x 0.070 W in. 30 7 9402 O-ring, Viton, 0.364 x ID x 0.070 W in. 0 8 44892 Spring, compression, 0.420 x 0.500 in. 0 9 272823 Tool, seal 0 0 27282 Tool, retaining ring removal 0 272824 Tool, base 0 2 274973 Tool, piston insertion 0 NS 272287 Gasket 0 A NS 04723 Instructions, module rebuild Continued...
9-39 Item Part Description Quantity 272822 Kit, needle-and-piston assembly and seals 5070 Assembly, needle-and-piston 2 986502 Retaining ring, internal, 43, push-on 3 98302 Disk, seal support 4 750553 Seal, hat, formed 4 47473 Kit, compression springs and seal support discs 0 44892 Spring, compression, 0.420 x 0.500 in. 6 A3 98302 Disc, seal support 6 272290 Kit, needle-and-piston assembly NOTE A: This gasket is not used on CF200PAD modules. NS: Not Shown Note 6 2 9 3 4 0 6 5 3 2 6 8 7 420000 Figure 9-34 service kit parts
9-40 Recommended Spare Parts and Supplies For a general spare parts and supplies list, refer to Recommended Spare Parts and Supplies in Section 8, Parts. Part Description Note 327957, MB200 940 O-ring, Viton, 0.30 ID x 0.070 W in. (for the back of the module) 987 Screw, socket, 0-32 x.250 (for securing the module to the applicator) 940060 O-ring, Viton, 0.25 ID x 0.0250 x 0.063 in. (located between the seat and nozzle) - - - - - - Nozzles A 9095 Kit, nozzle cleaning, small orifice 2300 Kit, nozzle cleaning, large orifice 900223 Lubricant, O-ring, Parker, 4 oz (for lubricating O-rings) 900344 Lubricant, Never Seez, 8 oz can (for the module mounting screws) NOTE A: Refer to Nozzle Part Numbers earlier in this section for a list of available nozzles.
9-4 Technical Data Applicator Specifications Table 9-2 provides specifications for an applicator with MB200 modules. Refer to Applicator-Specific Reference Drawings in Section 8, Parts, for the following information about your applicator: dimensions cordset style number and orientation of filters number of modules type and number of solenoid valves Item Operating temperature System hydraulic pressure -actuating air pressure Pattern air pressure Pattern air temperature (recommended) Air consumption Adhesive viscosity Adhesive pattern capability Adhesive fiber size Adhesive add-on weight Nozzle selection Nozzle coating width (see Note A) Nozzle sizes Size of nozzle openings Mounting height NOTE Table 9-2 MB200 Applicator Specifications Specification 70 230 C (60 450 F) 4 55 bar (200 800 psi) 03.4 bar (,500 psi) maximum 4. 6.2 bar (60 90 psi) typical 2. 3. bar (30 45 psi) typical NOTE: To eliminate cobwebbing (a buildup of fine fibers), lower the pattern air pressure to 0. 0.3 bar (2 5 psi) during machine idle or stop. 6 27 C (30 50 F) above adhesive temperature setpoint typical ~4.2 70.8 nlm (~0.5 2.5 scfm) per module,500 7,500 cps (3,000 5,000 cps optimal) Continuous or intermittent High-density nozzles: 0 50 microns Low-density nozzles: 20 00 microns High-density nozzles: 0.5 0 gsm @ 300 m/min (984 ft/min) Low-density nozzles:.0 0 gsm @ 300 m/min (984 ft/min) Coverage: Full or partial Density: high or low Orientation: center, left, or right 3 22 mm (0. 0.9 in.) Refer to Nozzle Part Numbers. 0.5 mm (0.020 in.) 9 5 mm (0.72 2.0 in.); 32 mm (.25 in.) typical A: The adhesive pattern width is affected by the viscosity of the adhesive. Lower-viscosity adhesive may not produce patterns as wide as those listed.
9-42 Torque Specifications These torque specifications are also stated within the appropriate procedures. Item mounting screws Nozzle-retaining screw Torque Specification 3.4 N m (30 in.-lb).4 2.0 N m (2 8 in.-lb) Dimensions 2.8 mm 25.4 mm (0.86 in.) (.0 in.) 98.2 mm (3.86 in.) 48.3 mm (.9 in.) 6.35 mm (0.25 in.) 2.7 mm (0.50 in.) 27.9 mm (.09 in.) 43.7 mm (.72 in.) 35.8 mm (.4 in.) 0.25 mm (0.0 in.) 22.0 mm (0.87 in.) 34.2 mm (.35 in.). mm (0.44 in.) 2.6 mm (0.495 in.) 42030009 Figure 9-35 AOSC adjustable MB200 module dimensions
9-43 2.8 mm 25.4 mm (0.86 in.) (.0 in.) 74.7 mm (2.94 in.) 96.0 mm (3.78 in.) 48.3 mm (.9 in.) 6.35 mm (0.25 in.) 2.7 mm (0.50 in.) 27.9 mm (.09 in.) 43.7 mm (.72 in.) 35.8 mm (.4 in.) 0.25 mm (0.0 in.) 22.0 mm (0.87 in.) 34.2 mm (.35 in.). mm (0.44 in.) 2.6 mm (0.495 in.) 420300020 Figure 9-36 AOAC fixed MB200 module dimensions
9-44