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MM147 - D4 Hot Melt Unit
Section 8 - Troubleshooting and Repair
107
Section 8 - Troubleshooting and Repair
Problem
Possible Cause
Possible Solution
1. Material
in
reservoir will
not melt
1a. Temperature control
malfunction or adjustment
1a. Check indicator lights.
Reset adjustments.
1b. Loose, broken or shorted
connectors (heater, wiring
harness)
1b. Tighten loose connectors.
Repair broken connectors or shorted
connectors.
1c. Circuit breaker tripped
1c. Check fuses. Replace if necessary.
2. No
adhesive
output
2a. Adhesive not hot enough
2a. Check temperature setting is correct.
Ensure that reservoir heater has power.
Check fuses.
2b. Pump not moving
2b. Check for system ready condition.
Check for blown fuse.
2c. Cold glue hose or damaged
hose
2c. Replace hose.
2d. Cold applicator
2d. Check for blown fuse and/or defective
heater.
2e. Applicator clogged
2e. Service applicator system.
2f. Clogged filter
2f. Remove old filter and replace with new
filter.
2g. Temperature control
malfunction
2g. Replace temperature control.
3. Charring
or
gelling of
adhesive in
the reservoir
3a. Reservoir temperature too
high
3a. Lower reservoir temperature in accord with
adhesive manufacturer’s specifications.
3b. Surface oxidation of the
adhesive in the reservoir
3b. Keep reservoir closed.
3c. Poor adhesive heat stability
3c. Change adhesive. If not possible, hold the
reservoir temperature at a minimum.
3d. Low reservoir level
3d. Keep reservoir full.
3e. Temperature control
malfunction
3e. Replace temperature control.
4. Fuming
or
smoking of
adhesive in
the reservoir
4a. Operating temperature
exceeds adhesives’
recommended temperature
4a. Keep setpoint within recommended range.
Keep reservoir covered.
Consider another adhesive.
Keep reservoir covered.
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 ...