What to do if my Emerson Controller has a short stroke?
If the Emerson Controller has a short stroke, check the position of the travel stops and readjust as necessary. If there is hardened grease, dismantle, remove any hard grease, relubricate, and reassemble. If there is debris left in the cylinder or housing during maintenance, disassemble the cylinder assembly to remove the debris, then reassemble it.
Why does my Emerson Bettis CBA730-SR have a lack of torque?
If your Emerson Controller seems to lack torque, first ensure the supply pressure is above the minimum operating pressure of the actuator and that the output torque produced at the supply pressure exceeds the valve torque demand. Also, check and adjust the speed controls to increase flow. Clean or replace the exhaust port silencers if the exhaust port is blocked. Examine the pipe work for blockages, crushed pipe, or leakage, and clear or replace as necessary. Examine the controls and refurbish or renew them as needed. If the piston, rod, or housing seal is defective, dismantle the cylinder/housing assembly, remove the defective seal, fit a new one, and reassemble.
Why is my Emerson Controller moving erratically?
If your Emerson Controller is showing erratic movement, check the operating medium for consistent supply pressure and correct as necessary. If the lubrication is inadequate, dismantle, relubricate, and reassemble the unit. Inspect for worn parts by dismantling and visually inspecting for significant wear; actuator replacement may be required.
General| Model | CBA730-SR |
|---|---|
| Category | Controller |
| Housing Material | Aluminum |
| Mounting Position | Any |
| Temperature Range | -20°C to +80°C |
Details essential safety precautions and warnings for handling Bettis actuators.
Provides general steps and safety warnings for disassembling the actuator.
Details the procedure for safely disassembling the spring cylinder component.
Outlines the steps for disassembling the main housing of the actuator.
Covers general procedures and precautions for reassembling the actuator parts.
Provides detailed steps for reassembling the housing components of the actuator.
Details the procedure for reassembling the spring cylinder assembly.
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