Damping Adjustment ............................................................................................................................... 56
Maintenance.................................................................................................................................................. 58
Pilot .................................................................................................................................................................... 58
Disassembly .................................................................................................................................................. 58
Reassembly ................................................................................................................................................... 58
Body................................................................................................................................................................... 59
Disassembly .................................................................................................................................................. 59
Reassembly ................................................................................................................................................... 60
Diaphragm .................................................................................................................................................... 60
I/P Module ...................................................................................................................................................... 60
Assembly to Positioner ............................................................................................................................ 61
Disassembly .................................................................................................................................................. 62
Troubleshooting........................................................................................................................................... 63
Parts Reference 4700E/4800E .............................................................................................................. 71
Parts Reference............................................................................................................................................ 73
Specification Data....................................................................................................................................... 75
Specifications ............................................................................................ 75
Drawings .................................................................................................... 77
.
© 2015 General Electric Company. All rights reserved
6 | =GE Oil & Gas