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iv
Part No. 920160 Rev. A
February 1997
TABLE OF CONTENTS,
continued
Title
Page
7. COMPONENT REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1.
Electronic Component Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1.1.
Removing the Bezel From Vista Dispensers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.1.2.
DEM In Service Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.1.3.
Solenoid Drive Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.1.4.
Computer Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.1.5.
Intrinsic Safe Barrier Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.1.6.
Display Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.1.7.
Cash/Credit Interface Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.1.8.
Photocoupler/Pulser Disc Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.1.9.
Lift-to-Start Nozzle Boot Component Replacement . . . . . . . . . . . . . . . . . . . . . . 64
7.1.10. Push-to-Start Nozzle Boot Component Replacement . . . . . . . . . . . . . . . . . . . . . 65
7.1.11. Push-to-Start Membrane Switch Assembly Replacement. . . . . . . . . . . . . . . . . . 68
7.1.12. Back Lit Display Lamp Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.1.13. Electro-Mechanical Totalizer Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.2.
Hydraulic Component Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.2.1.
Diaphragm Replacement (Non-Blenders Only) . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.2.2.
Diaphragm Valve Replacement (Non-Blenders Only) . . . . . . . . . . . . . . . . . . . . 70
7.2.3.
Actuator Replacement (Non-Blenders Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.2.4.
Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7.2.5.
Proportional Flow Control Valve Replacement (Blenders Only) . . . . . . . . . . . . 71
7.2.6.
Check and Pressure Relief Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 71
APPENDIX A.
TROUBLESHOOTING FLOWCHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
APPENDIX B.
SERVICE INFORMATION AND CONNECTOR PIN OUTS. . . . . . . . . . . . . . . . . 101
B.1. Dispenser Electronic Module (DEM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
APPENDIX C.
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
WARRANTY AND LIMITATION OF REMEDY AND LIABILITY. . . . . . . . . . . . . . Inside Back Cover
FCC WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover
LIST OF FIGURES
Title
Page
Figure 2-1.
Function Switches and Display Locations - Non Blender Shown . . . . . . . . . . . . . . . . . . . 6
Figure 2-2.
Unit Price Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2-3.
Proportional Blending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 2-4.
Fixed Ratio Blending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 3-1.
Computer and Solenoid Drive Board (Non-Blender). . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 3-2.
Computer and Solenoid Drive Board (Blender) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3-3.
Fault Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3-4.
Main Sale Display Showing Transaction Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 3-5.
Main Sale Display Showing Transaction Counter and Fault Code . . . . . . . . . . . . . . . . . 20
Figure 3-6.
Intrinsic Safe Barrier Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Summary of Contents for Dresser Vista 1 Series
Page 1: ...1 Vista Series Blending and Non Blending Remote Dispensers SERVICE ...
Page 4: ...Part No 920160 Rev A February 1997 ...
Page 10: ...viii Part No 920160 Rev A February 1997 ...
Page 12: ...2 Part No 920160 Rev A February 1997 ...
Page 22: ...12 Part No 920160 Rev A February 1997 ...
Page 38: ...28 Part No 920160 Rev A February 1997 ...
Page 62: ...52 Part No 920160 Rev A February 1997 ...
Page 76: ...66 Part No 920160 Rev A February 1997 FIGURE 7 8 NOZZLE BOOT ASSEMBLY LIFT TO START ...
Page 77: ...67 February 1997 Part No 920160 Rev A FIGURE 7 9 NOZZLE BOOT ASSEMBLY PUSH TO START ...
Page 83: ...73 February 1997 Part No 920160 Rev A APPENDIX A TROUBLESHOOTING FLOWCHARTS ...
Page 110: ...100 Part No 920160 Rev A February 1997 ...
Page 111: ...101 February 1997 Part No 920160 Rev A APPENDIX B SERVICE INFORMATION AND CONNECTOR PIN OUTS ...
Page 134: ...124 Part No 920160 Rev A February 1997 ...
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