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Section 7 - Maintenance
MM147 - D4 Hot Melt Unit
102
Changing the Adhesive
CAUTION!
When changing adhesives, always consult adhesive suppliers to check compatibility between
adhesives. Failure to comply could result in damage to the equipment.
To change the adhesive, follow these steps:
1. If the old adhesive and the new adhesive are compatible, pump enough of the new adhesive through the
system to ensure that all of the old adhesive has been cleared out (generally 3 to 5 lbs. or 1.1 to 1.9 kg).
2. If the two materials are not compatible, flush the system (see “Flushing the System” below).
Flushing the System
The system needs to be flushed under the following circumstances:
•
When changing to an adhesive that is not compatible with the previously used adhesive
•
When loose particles of charred adhesive are causing frequent clogging of screens and nozzles
ValcoMelton recommends using paraffin wax to flush the unit.
CAUTION!
If a cleaning solution is to be flushed through the hot melt system, it must be compatible with
silicone, Viton,Teflon, carbon graphite, and aluminum. Consult the adhesive manufacturer to
find out which cleaning solutions are recommended for the adhesive you are using. Failure to
comply could result in damage to the equipment.
To flush the system, follow these steps:
1. Place an adequate supply of either paraffin wax or suitable cleaning solution into the unit.
Reduce the temperature control setting to 300°F (148°C) for paraffin
wax. Consult your supplier for proper temperature setting if cleaning
solution is being used.
WARNING!
If the system is hot, wear insulated gloves and eye protection when disconnecting hoses.
Trapped air pockets may cause adhesive spray and result in personal injury (burns) or death.
2. Make sure that the pump is turned off.
3. Manually activate the applicators to relieve any system pressure buildup if the system is hot.
4. Disconnect glue hoses from applicators and collect purged material with appropriate container.
5. Turn the D4 hot melt unit on and allow 20-30 minutes for hoses and guns to reach temperature.
6. Turn the pump on.
7. Pump 5-6 lbs. (2 kg) of material through the unit and glue hoses.
If particles are still present in the discharged material, additional
material may be needed to flush the unit completely free of charred
adhesive.
8. Turn the pump off.
9. Reconnect the glue hoses to the applicators.
Summary of Contents for D4
Page 1: ...D4 Hot Melt Unit Manual Number MM147 Revision Date 6 2018 ...
Page 4: ......
Page 10: ...Table of Contents MM147 D4 Hot Melt Unit 10 Module Status LED 170 Link Activity LED 170 ...
Page 20: ...Section 2 Safety and Use MM147 D4 Hot Melt Unit 20 ...
Page 22: ...Section 3 Basic Features MM147 D4 Hot Melt Unit 22 ...
Page 35: ...MM147 D4 Hot Melt Unit Section 5 Setup 35 Section 5 Setup Control Panel ...
Page 42: ...Section 5 Setup MM147 D4 Hot Melt Unit 42 Set Language Continued Next Page ...
Page 43: ...MM147 D4 Hot Melt Unit Section 5 Setup 43 Set Language Continued ...
Page 44: ...Section 5 Setup MM147 D4 Hot Melt Unit 44 Set Temperature Units ...
Page 47: ...MM147 D4 Hot Melt Unit Section 5 Setup 47 Hose Valve Temperature Continued ...
Page 54: ...Section 5 Setup MM147 D4 Hot Melt Unit 54 Beacon Alarm Setup Continued ...
Page 55: ...MM147 D4 Hot Melt Unit Section 5 Setup 55 Beacon 2 ...
Page 70: ...Section 5 Setup MM147 D4 Hot Melt Unit 70 Sequential Start Valve ...
Page 100: ...Section 6 Operation MM147 D4 Hot Melt Unit 100 ...
Page 106: ...Section 7 Maintenance MM147 D4 Hot Melt Unit 106 ...
Page 110: ...Section 9 Specifications MM147 D4 Hot Melt Unit 110 Dimensions ...
Page 112: ...Section 10 Part Number List MM147 D4 Hot Melt Unit 112 D4 Unit ...
Page 113: ...MM147 D4 Hot Melt Unit Section 10 Part Number List 113 D4 Unit Continued ...
Page 120: ...Section 10 Part Number List MM147 D4 Hot Melt Unit 120 D4 Base Unit 776xx392 ...
Page 142: ...Section 11 Warranty MM147 D4 Hot Melt Unit 142 ...
Page 144: ...Section 12 Service MM147 D4 Hot Melt Unit 144 ...
Page 146: ...Appendix A Password Levels MM147 D4 Hot Melt Unit 146 Setting Level 0 as Default Continued ...
Page 148: ...Appendix B Power Requirements MM147 D4 Hot Melt Unit 148 ...
Page 150: ...Appendix C Instruction Sheets for Option Kits MM147 D4 Hot Melt Unit 150 ...
Page 208: ...5 Valco Melton IS0343 Anybus Installation Installation Continued ...
Page 245: ...Appendix E Communication Protocols Modus MM147 D4 Hot Melt Unit 162 ...