Declutchable gearboxes possess a system to disengage or declutch the drive connection between the valve and actuator, which enables handwheel operation of the actuator assembly and valve. If you’re looking for a manual override gearbox manufacturer, contacting Viral Industries may help.
However, if you want to know how to use a manual override gearbox for pneumatic actuators, this blog is for you. So let’s get to it without any further ado.
Know the Gearbox In And Out
Familiarizing yourself with the design and components of the manual override gearbox helps you control the actuator better. The manual override gearbox consists of a handwheel or lever that one can operate manually. Below are a few features of this type of gearbox.
Features
Clockwise rotation of input provides clockwise rotation of output.
Self-locking gearbox for secure positioning.
Bearings supported assembly for smooth operation and durability.
Suitable for actuator operation, enabling manual control.
Gearbox lubricated with grease for optimal performance.
Higher ratio options available to reduce effort required for operation.
Locking arrangement ensures stability and prevents unintended movement.
Specifically designed for marine applications, with enhanced corrosion resistance.
Locate the Manual Override Connection Point
Identify the manual override connection point on the pneumatic actuator. You will find this connection usually on the actuator housing and will accommodate the manual override gearbox. Once you locate the connection point, it gets easier to drive the connection between the valve and actuator.
Ensure the Position of the Gearbox
Ensure that the manual override gearbox is in the right position for manual operation. Putting it in the right position involves disengaging any or all locking mechanisms, releasing clutches, etc. depending on the specific design of the gearbox.
Consider the Temperature and Material Options for Worm-Wheel
The temperature limits usually for a manual override gearbox are:
● Normal application -20˚C To 120˚C
● High temperature application up to 150˚C
● Low temperature application up to -50˚C
While the material options for worm-wheel include phosphorous bronze (PB-2).
Test the Movement of the Actuator
When operating the manual override gearbox, notice the movement of the actuator. Make sure the actuator moves smoothly and corresponds to the required position as well as direction. If you notice any inconsistencies or irregularities, stop the operation then and there and inspect for any further potential problems.
Wrapping Up
Hopefully, the blog helped you understand ways to use manual override gearbox for pneumatic actuators. If you’re looking for a gearbox manufacturer, contact Viral Industries. They have many types of gearbox and they also customise a gearbox depending on your requirements. All you need to do is know your business requirements and budget before you reach out to them. All the best!