Wayne Vista Series, Service, Page: 7 / 166

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November 1992 Part No. 917543 Rev. A
TABLE OF CONTENTS, continued
Title Page
7. COMPONENT REPLACEMENT, continued
7.2. Hydraulic Component Replacement ........................................................................ 67
7.2.1. Installation of Diaphragm ......................................................................... 67
7.2.2. Diaphragm Valve ...................................................................................... 68
7.2.3. Actuator .................................................................................................... 68
7.2.4. Meter ......................................................................................................... 69
7.2.5. Blend Valve ............................................................................................... 69
APPENDIX A TROUBLESHOOTING FLOWCHARTS ........................................................ 71
APPENDIX B ELECTRONIC/ELECTRICAL COMPONENT TROUBLESHOOTING ....... 93
APPENDIX C DISPENSER INTERNAL WIRING DIAGRAMS ......................................... 133
APPENDIX D GILBARCO PULSER INTERFACE PCB TROUBLESHOOTING .............. 147
USER’S RESPONSE SHEET .................................................................................................... 151
WARRANTY AND LIMITATION OF REMEDY AND LIABILITY .............. Inside Back Cover
FCC WARNING ............................................................................................................ Back Cover
LIST OF FIGURES
Figure 1-1. Proportional Blending Block Diagram ................................................................... 2
Figure 1-2. Fixed Ratio Blending Block Diagram .................................................................... 4
Figure 2-1. Bezel and Function Switch Location ...................................................................... 6
Figure 2-2. Unit Price Display .................................................................................................. 9
Figure 3-1. Duplex II Computer Connector Locations ........................................................... 13
Figure 3-2A Duplex II Fault Code Displey Format and Definitions ........................................ 16
Figure 3-2B. Duplex II Fault Code Displey Example ............................................................... 16
Figure 3-3.
Non-blending Photocoupler Internal Wiring ........................................................ 19
Figure 3-4. Blending Photocoupler Internal Wiring ................................................................ 20
Figure 4-1. Nozzle Boot Assembly with Mirco Switch .......................................................... 22
Figure 4-2. Nozzle Boot Assembly with Tilt Switch............................................................... 23
Figure 5-1A. Blending Flow Control Valve “Off” No Flow ...................................................... 27
Figure 5-1B. Non-blending Flow Control Valve “Off” No Flow .............................................. 28
Figure 5-2.
Flow Control Valve With Cover and Center Chamber Removed ......................... 29