“An ounce of prevention is worth a pound of cure.” – Benjamin Franklin
Ensuring your electromechanical actuators (EMAs) provide a long service life starts with specifying thoughtfully designed products constructed of quality materials. But that’s far from the whole story. Although Ben Franklin was writing about the importance of fire safety back in 1735, his words continue to remind us that no one―in any industry―can afford to neglect basic preventive maintenance.
- Always consult your EMA’s user manual for guidance on the correct lubrication interval, the lubrication point, and the type and amount of lubricant. Appropriate lubrication according to the recommended volumes and intervals is one of the most important maintenance actions for all EMAs.
- Clean the EMA regularly, paying special attention to the inner ram on rod-style units, and the protective coverstrip on rodless style units. A non-abrasive cloth can remove most contaminants without damaging the finish. For extremely soiled actuators, use a small amount of commercial grade solvent (such as brake cleaner or denatured alcohol).
- Inspect EMAs regularly for problems like stress or fatigue cracks, excessive wear on the inner ram, excessive corrosion, lubrication leakage, and bare/skinned wires. We recommend including an inspection during the regular cleaning and lubrication processes.
- Always lock-out/tag-out the unit from use and contact us for next steps if you find any problems.
- Avoid applying any side load to a ram-style actuator’s rod-end or inner ram. Side loading occurs when force is applied to the actuator radially, instead of along the axis of extension. This type of loading pushes the actuator's components out of alignment, accelerating actuator wear and can potentially void the warranty.
- Never allow the EMA to “drop” into place when setting the unit down. Allow it to come to rest gently in a location that can support its weight.
- Never use abrasives (like wire wheels or sandpaper) or harsh acidic cleaners.
Even with preventive maintenance, you’ll eventually need to replace or refurbish your EMA, or add units/components that were not accounted for during the initial design phase. Hunt Valve Actuator Division makes it easy with our online configurator tool. Simply build the EMA you need by entering your parameters, receive pricing, and then submit your configuration for a firm quote. Whether you need a standard, modified, or custom linear motion solution; we’re happy to work with you to determine the best solutions for your unique needs. Contact us or request a quote.