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D200163X012
Type 4660 High-Low Pressure Pilot
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . .
Description 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services 3. . . . . . . . . . . . . . . . . . . . . .
Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting 6. . . . . . . . . . . . . . . . . . . . . . .
Panel Mounting 6. . . . . . . . . . . . . . . . . . . . . . . . . .
Pipestand Mounting 6. . . . . . . . . . . . . . . . . . . . . .
Pressure Connections 6. . . . . . . . . . . . . . . . . . . . .
Supply Pressure 6. . . . . . . . . . . . . . . . . . . . . . . . .
Process Pressure 7. . . . . . . . . . . . . . . . . . . . . . . .
Output Pressure 7. . . . . . . . . . . . . . . . . . . . . . . . .
Vent 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information 8. . . . . . . . . . . . . . . . . . . . . . .
Pilots without Optional Set Point Indication 8. . .
Preliminary Adjustments 8. . . . . . . . . . . . . . . . . .
Setting the High Set Point 9. . . . . . . . . . . . . . . . .
Setting the Low Set Point 9. . . . . . . . . . . . . . . . .
Alternate Set Point Adjustment Procedure 9. . .
Pilots with Optional Set Point Indication 10. . . . .
Setting the High and/or Low Set Point(s) 10. . .
Prestartup Checks 11. . . . . . . . . . . . . . . . . . . . . . .
Alignment of the Nozzle Beam 11. . . . . . . . . . . . .
Startup 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principle of Operation 12. . . . . . . . . . . . . . . . . . . . . .
Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bourdon Tube/Flapper Assembly
Replacement 13. . . . . . . . . . . . . . . . . . . . . . . . .
Block-and-Bleed Relay Assembly
Replacement 13. . . . . . . . . . . . . . . . . . . . . . . . .
Low or High Set Point Assembly Replacement14
Pilots without Set Point Indication 14. . . . . . . . .
Pilots with Set Point Indication 14. . . . . . . . . . . .
Parts Ordering 15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
W4035/IL
FRONT VIEW
W4034/IL
LEFT SIDE WITH
CASE COVER OFF
Figure 1. Type 4660 High-Low Pressure Pilot with Relay
Introduction
Scope of Manual
This instruction manual provides installation,
operating, maintenance, and parts ordering
information for the Type 4660 high-low pressure
pilot. Refer to separate instruction manuals for
information regarding the control valve actuator.
Instruction Manual
Form 5200
September 2004
4660 Pressure Pilot