RTD-Style Hot Melt FoamMix Hoses for Bulk Melter Systems

Transcription

1 Nordson Corporation OPERATOR S CARD P/N _01 RTD-Style Hot Melt FoamMix Hoses for Bulk Melter Systems Safety 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. WARNING! System pressurized! Relieve system hydraulic pressure before breaking any hydraulic connection or seal. Failure to relieve the system hydraulic pressure can result in the uncontrolled release of hot melt that can cause personal injury. WARNING! Molten material! Wear eye or face protection, clothing that protects exposed skin, and heat protective gloves when servicing equipment that contains molten hot melt. Even when solidified, hot melt can still cause burns. Failure to wear appropriate personal protective equipment can result in personal injury. 1

2 Hose Types Part Number Use this document for the following FoamMix hose part numbers: Type Hose Length Feet Meters Size (Industry Standard) Max Watts Melter end Connectors Applicator end / / / / Transfer / / / / / / / / / / / / Automatic/ Manual / / / / / / Swivel/ / Accessory / / Max Temp 450 F 230 C Max Pressure 3000 PSI MPa 2

3 Description The Nordson FoamMix hoses direct the flow of hot melt and other thermoplastic materials between a Nordson melter and a dispensing applicator. Additional Features and Benefits: Built-in Resistance Temperature Detectors (RTDs) provide precise and consistent temperature control and safety. A closely spaced, spiral wound heating element provides uniform heat transfer throughout the entire length of the hose. Enhanced insulation reduces heat loss, thereby increasing efficiency and adhesive quality. Installation Use the following procedures to remove an old hose and connect a new hose to the bulk melter. Removing the Old Hose 1. Relieve the melter's hydraulic pressure. Refer to the manual that came with the melter for more information. 2. Switch the melter OFF, and disconnect it from its power source. 3. Do the following to continue: Switch OFF any independently powered auxiliary devices, including applicator triggering devices or drivers. Disconnect the hose electrical connectors or wiring from the melter and applicator. Disconnect the hose swivel fittings from the melter and applicator end hose adapter fitting. 4. Dispose of the old hose. 3

4 Installing the New Hose 1. Carefully uncoil the new hose. Make sure you do not put a knot in it. 2. Route the new hose between the melter and the applicator. Refer to Hose Installation Guidelines and Accessories on page Do the following to continue: Connect the melter end swivel fitting to the adapter fitting on the melter. Refer to Parts - Adapter Fittings on page 8. Connect the melter end electrical connector into the appropriate melter receptacle. Refer to About Melter and Applicator End Connections on page 5. Locate and identify which wiring diagram # to use for your FoamMix Hose. For Hose Part Number Refer to On page Wiring Diagram #1 Page Wiring Diagram #2 Page Wiring Diagram #3 Page Switch the melter ON, and let the system reach its operating set point temperature. 5. Do the following to continue: Place a drain pan under the new hose. Run adhesive through the hose to purge it of any foreign material. 6. Switch the melter OFF, then do the following to continue: Connect the applicator end swivel fitting to the adapter fitting on the applicator. Plug the applicator end electrical connector into the applicator, or wire the hose to the applicator as described in your applicator specific manual. 7. Switch the melter ON, and any other independently powered auxiliary devices, including applicator triggering devices or drivers. 4

5 About Melter and Applicator End Connections Use the following hose cordset pin layout to disconnect and reconnect the cordset leads. Melter End Applicator End Pin Key Locate pins using the following letters, not by the indicated pin number on the connector. a Hose sensor b RTD jumper c Applicator heater d Applicator sensor e Hose heater f High pressure hose jumper Ground Not used Internal jumper 5

6 Hose Installation Guidelines and Accessories Recommended Description NOT Recommended Secure hoses with proper brackets. Do not use clamps that restrict flow or damage hoses. X Maintain at least 127 mm (.5 in.) between hoses to maintain temperature. Failure to do so can cause the adhesive to overheat, char, and possibly start a fire. Use 45 or 90 fittings to connect hoses. Failure to do so can cause the adhesive to overheat, char, and possibly start a fire. Do not exceed the Core Bend Radius. Refer to High Pressure Hose Bend Radii on page 7 for more information. Failure to do so can cause the adhesive to overheat, char, and possibly start a fire. Properly support hoses so that flow is not restricted. Refer to Hose Accessories on page 7 for more information. Use two wrenches to install hose fittings. Use a chafe guard in places where damage could occur. Refer to Hose Accessories on page 7 for more information. 6

7 Hose Accessories Use the appropriate sized adapter to connect components. Insulating Cuff Spiral Support Hose Strap Heat Protective Gloves Hose Protector Service Kit Hose Separator Kit Hose Hanger Kit Maintains hose temperature Single suspension point to evenly support a hose Multiple suspension points to evenly support a hose Protect your hands while servicing hot components Spiral wrap chafe guard Molded corrugated tube clips, to route and fasten hoses Maintains distance between two hoses for maximum heat efficiency Single suspension point to evenly support multiple hoses. Suitable for 5/16 and 5/8 in. hoses 1.75 in. P/N in. P/N /16 in. - P/N /8 in. - P/N in. P/N in, P/N P/N P/N P/N P/N P/N in. P/N High Pressure Hose Bend Radii Use the following table to view the bend radius for high pressure FoamMix hoses. Industry Standard Size Hose Dash Number Inside Diameter (inches) Core Bend Radius (inches) Hose Bend Radius (inches) 1/ / / / / / /

8 Parts - Adapter Fittings The following table lists the most common steel manifold male fittings. NOTE: Contact your local Nordson representative for additional fittings and composition, such as stainless steel and brass. Straight 90 Degree 45 Degree Hose Size 1/4 5/16 3/8 1/2 5/8 Thread Size Part Number Part Number Part Number 9/ ** ** -- 3/ / / / / / / / / ** ** (extended) / /4 9/ / / (long) / / / /4 1-1/ Note: ** indicates O-ring is included -- 8

9 Wiring Diagrams Refer to the appropriate wiring diagram number for your FoamMix Hose. Wiring Diagram #1 Transfer Hose This jumper indicates a high pressure hose 9

10 Wiring Diagram #2 Auto/Manual Hose and Auto/Transfer Hose This jumper indicates a high pressure hose 10

11 Wiring Diagram #3 Swivel/Accessory Hose These jumpers indicate high pressure hoses 11

12 Troubleshooting The following table contains basic hose troubleshooting procedures. For melter troubleshooting procedures, refer to the melter specific product manual. Problem Possible Cause Corrective Action Make sure of the following: The melter is ON. No input power The hose electrical connections are secure. The channel is set to the correct temperature. Hose does not heat or cannot maintain set point temperature Little or no adhesive output (melter OK) Hose leaks at the connection with the melter or applicator Missing contact pin(s) or damaged electrical connector Failed heater or RTD Clogged hose Loose hose fitting Damaged O-Ring, hose adapter fitting or hose swivel fitting Repair or replace the electrical connector. Connect the hose to a known working channel. If the hose heats, the original channel is bad. If the hose does not heat, replace the hose. Check the Hose: 1. Disconnect the hose from the applicator. 2. Switch the pump ON and check for full adhesive flow. 3. Replace the hose if there is little or no adhesive flow. Make sure both the melter and hose are at their set point temperatures, then carefully tighten the fittings Replace the adapter fitting. Refer to Parts - Adapter Fittings on page 8. Replace the hose if the hose swivel is damaged. For CE Declaration refer to melter documentation. Issued 06/13 Original copyright date Nordson and the Nordson logo are registered trademarks of Nordson Corporation. 12