ABB AV3 Instruction Manual page 4

Table of Contents
SECTION 5 - OPERATING PROCEDURES................................................................................5-1
INTRODUCTION .............................................................................................................................5-1
EQUALIZING AND AIR SUPPLY SHUTOFF VALVE......................................................................5-1
Transfer from Automatic to Manual Operation .........................................................................5-1
Transfer from Manual to Automatic Operation .........................................................................5-1
SECTION 6 - TROUBLESHOOTING...........................................................................................6-1
INTRODUCTION .............................................................................................................................6-1
SECTION 7 - MAINTENANCE.....................................................................................................7-1
INTRODUCTION .............................................................................................................................7-1
ROUTINE SERVICE........................................................................................................................7-1
SECTION 8 - REPAIR/REPLACEMENT PROCEDURES ...........................................................8-1
INTRODUCTION .............................................................................................................................8-1
MANIFOLD FILTERS ......................................................................................................................8-1
MANIFOLD ......................................................................................................................................8-2
GAIN HINGE SPRING.....................................................................................................................8-3
PILOT VALVE BODY ......................................................................................................................8-4
SERVO ASSEMBLY AND ELECTRONICS CIRCUIT BOARD .......................................................8-5
CAM.................................................................................................................................................8-7
DIAPHRAGM ASSEMBLY...............................................................................................................8-8
Removing .................................................................................................................................8-8
Replacing .................................................................................................................................8-8
PILOT VALVE STROKE ADJUSTMENT.........................................................................................8-9
SECTION 9 - SUPPORT SERVICES...........................................................................................9-1
INTRODUCTION .............................................................................................................................9-1
RECOMMENDED SPARE PARTS..................................................................................................9-1
ADDITIONAL SPARE PARTS KITS ................................................................................................9-2
APPENDIX A - POSITION TRANSMITTERS ............................................................................. A-1
INTRODUCTION ............................................................................................................................ A-1
DESCRIPTION AND OPERATION ................................................................................................ A-1
Potentiometric Position Transmitter......................................................................................... A-1
Four to 20 mA Position Transmitter......................................................................................... A-1
CALIBRATION................................................................................................................................ A-2
Calibrating the Potentiometric Position Transmitter ................................................................ A-2
POTENTIOMETRIC APPLICATION EXAMPLE .............................................................. A-3
CALIBRATE THE POTENTIOMETRIC APPLICATION EXAMPLE ................................. A-4
Calibrating the Four to 20 mA Position Transmitter................................................................. A-6
APPENDIX B - QUICK START................................................................................................... B-1
INTRODUCTION ............................................................................................................................ B-1
PRODUCT IDENTIFICATION (NOMENCLATURE)....................................................................... B-1
MOUNTING THE POSITIONER..................................................................................................... B-2
EXTERNAL TUBING CONNECTIONS........................................................................................... B-4
EXTERNAL WIRING CONNECTIONS........................................................................................... B-4
CALIBRATION................................................................................................................................ B-5
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