WOODWARD SMM40 24VDC SPEED ADJUSTING MOTOR
Woodward
New product
Woodward, Inc.
United States
Electric Speed Adjusting Motor (Governor Actuator)
Marine Diesel Engine Governor & Generator Speed Control Systems
The Woodward SMM40 Speed Adjusting Motor is a precision electric actuator designed for Woodward mechanical and electro-hydraulic governor systems. It provides remote speed adjustment by converting electrical signals into controlled rotary motion, allowing accurate regulation of engine or generator speed.
The SMM40 is widely installed on marine main engines, auxiliary diesel engines, diesel generators, and power generation systems, where dependable speed control is essential for safe and efficient operation.
Manufactured by Woodward, USA, the SMM40 is recognized throughout the marine industry for its durability, accuracy, and long operational life.
The SMM40 Speed Adjusting Motor is an electric governor accessory that adjusts the governor speed setting remotely.
Instead of manually changing engine speed, the SMM40 receives electrical commands from the vessel's control system and precisely moves the governor speed-setting mechanism.
Typical applications include:
The Woodward SMM40 Speed Adjusting Motor typically includes:
The SMM40 is widely used on:
| Problem | Possible Cause | Recommended Solution |
|---|---|---|
| Motor does not operate | No power supply | Check input voltage and wiring |
| Governor speed cannot be adjusted | Gear or coupling damage | Inspect gearbox and linkage |
| Slow movement | Worn gears or insufficient lubrication | Service or replace worn components |
| Unstable engine speed | Governor calibration issue | Check governor settings and linkage |
| Excessive noise | Bearing wear | Inspect bearings and replace if necessary |
| Overheating | Continuous overload or motor fault | Verify load conditions and motor operation |
To maximize service life:
Woodward governor systems remain one of the most trusted engine speed control solutions in the marine industry because they offer:
These advantages make the SMM40 an essential component for maintaining stable engine and generator performance onboard ships.
It provides remote adjustment of the speed setting on Woodward governor systems used with marine diesel engines and generators.
It is compatible with many Woodward governor models, but compatibility should always be verified against the specific governor configuration.
It is mounted directly on the governor assembly or linked mechanically to the governor speed-setting mechanism.
Yes. Depending on the condition, the motor, gearbox, bearings, seals, and electrical components can often be serviced or replaced.
The Woodward SMM40 Speed Adjusting Motor is a precision electric governor actuator designed for remote speed adjustment of marine diesel engines and generator sets. Manufactured by Woodward, USA, it delivers accurate, reliable, and continuous engine speed control for marine automation and power management systems. Its robust construction and dependable performance make it a trusted choice for commercial vessels worldwide.
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