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General| Brand | Weir |
|---|---|
| Model | Hopkinsons Fig 9052 |
| Category | Controller |
| Language | English |
Provides an overview of the actuator's construction, weatherproof design, and mounting flexibility.
Details the AC motor specifications, ball bearings, insulation class, and the gear train mechanism.
Explains the helical spur pinion shaft mechanism for axial movement and torque limitation.
Describes how to engage and disengage manual operation using the handwheel and clutch lever.
Details the standard limit switch assembly with micro switches and hunting tooth gear trains.
Explains the mounting and coupling of limit switch and indicator units on a spider plate.
Describes the torque indicator, torque switch settings, and adjusting plate mechanism.
Outlines the function, components, and setup of the optional indicator unit.
Instructions for setting limit switch banks before despatch and on-site adjustments.
Step-by-step guide for mechanically connecting and commissioning pedestal-mounted actuators.
Procedures for mounting and commissioning actuators directly onto valves.
Guidance on setting the pointer of the mechanical valve position indicator.
Specifies attention required for DC motors, primarily brush wear.
Important checks for AC motor operation, particularly valve travel direction correspondence.
Details lubrication points, frequency, and recommended lubricants like Shell Alvania Grease.
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