Emerson 667- User Manual

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 5 Figure 4. Bench Set Adjustment SPRING ADJUSTER ACTUATOR STEM UPPER BENCH SET LOADING PRESSURE LOWER BENCH SET PRESSURE MARK VALVE STEM RATED VALVE TRAVEL MEASURE MARK VALVE STEM HERE LOWER BENCH SET LOADING PRESSURE 3 1 NO...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 6 in place, insert the cap screws and tighten the hex nuts, securing the actuator to the bonnet. b. For all other size actuators: D Slowly lower the actuator down onto the valve. As the yoke passes over the end of the valve ...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 8 match the travel span shown on the travel indicator scale (key 32). 8. If the span of travel is correct, bench set is complete. Proceed to the Installing the Stem Connector Assembly subsection. 9. If the travel span is not...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 9 Figure 5. Typical Reverse-Acting Valve Response to Deadband UPPER BENCH SET PRESSURE LOWER BENCH SET PRESSURE 9 3 0 OPENING VALVE 15 1.0 0.6 0.2 CLOSING VALVE CLOSED OPEN MID RANGE VALVE TRAVEL DIAPHRAGM PRESSURE, PSIG DIA...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 10 D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. D Disconnect any operating lines providing air pressure, electric power, or a control signal to t...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 11 7. Remove the cap screw (key 12) to separate the parts of this assembly. 8. To remove the seal bushing, remove the snap ring (key 72), and lift out the bushing. Inspect, and if necessary, replace O-rings (8 and 9). 9. Rem...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 12 Note If repeated or daily manual operation is expected, the actuator should be equipped with a side-mounted handwheel rather than a casing-mounted travel stop or top-mounted handwheel. The side-mounted handwheel is design...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 13 body (key 148). Remove the retaining ring (key 60) if the handwheel (key 58) must be separated from the handwheel screw. D If necessary, perform other actuator maintenance before returning to the following assembly steps....

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 14 Install the cotter pin (key 167). Replace the cap (key 247).14. Refer to the Assembly portion of the Actuator maintenance section. For size 70 and 87 actuators handwheels (figure 12): Refer to figure 12 for top-mounted ha...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 15 the nuts (keys 147 and 170) from the U-bolts (keys 166 and 143) that hold the assembly to the yoke.2. Remove the retaining ring (key 154), and drive out the lever pivot pin (key 153).3. Two screws (key 156) hold the right...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 18 Key numbers are shown in figures 16 through 20.1. Remove the cap (key 149 or 247) if the travel stop uses one. For down travel stops, loosen the locknuts (key 151, figures 16 and 17) so that the stop is not causing any sp...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 19 Parts Kits Side-Mounted Handwheels Retrofit Kits Key Description Part Number Retrofit Kit includes parts to add a Side-Mounted Handwheel. Size 34 Push-Down-To-Close 30A8778X0E2 Size 34 Push-Down-To-Open 30A8778X0F2 Size 4...

667 Size 30-76 and 87 Actuators Instruction Manual Form 1203 September 2004 21 Figure 7. Type 667 Size 70 and 76 Actuator APPLY LUBRICANT 50A8598-E / IL Key Description Part Number Qty 69 Nut, Hex, Jam 70* Gasket Composition [up to 232 ° C (450 ° F)] Sizes 30 through 40 1E801204022 1 Sizes 45 throug...