How a Fisher Plow Solenoid Works: Unraveling the Mystery of Your Snow Plow's Brain

Understanding how a Fisher Plow solenoid works is key to appreciating the efficient operation of your snow removal equipment. These crucial components, often overlooked, are the silent conductors orchestrating the movement and functions of your Fisher snow plow. This article will delve into the inner workings of these solenoids, demystifying their role and ensuring you have a clear picture of how they contribute to powerful snow clearing.

The Heart of the Operation: How a Fisher Plow Solenoid Works and Its Applications

The Fisher Plow solenoid is essentially an electromagnetic switch. It's a small but mighty device that uses electricity to control the flow of hydraulic fluid, which in turn powers the plow's movements. When you engage a function on your plow control, such as lifting or angling the blade, an electrical signal is sent to the solenoid. This electrical current energizes a coil of wire, creating a magnetic field. This magnetic field then attracts a plunger or armature.

This movement of the plunger is what makes the solenoid a switch. When attracted, it physically moves to open or close a port within the hydraulic valve body. Think of it like a tiny gatekeeper. If the solenoid is energized, it opens a gate allowing hydraulic fluid to flow to a specific cylinder, making the plow move in a certain direction. If it's de-energized, it closes that gate, stopping the fluid flow and holding the plow in its current position.

Here's a breakdown of its key functions and components:

• Electromagnetism: The core principle is using electricity to create a magnetic field.
• Plunger/Armature: This movable part is directly actuated by the magnetic field.
• Valve Body Interaction: The plunger's movement directly controls fluid ports within the hydraulic valve.

These solenoids are critically important for the precise and responsive control that Fisher Plows are known for. Without them, you wouldn't be able to:

1. Lift and lower the plow blade smoothly.
2. Angle the plow blade left or right.
3. Engage specific functions like the float position.

The solenoid's ability to rapidly switch between energizing and de-energizing allows for the quick and efficient operation of your plow. They are the bridge between your simple joystick commands and the powerful hydraulic system that does the heavy lifting (and plowing). The table below illustrates a simplified flow:

User Input	Electrical Signal	Solenoid Action	Hydraulic Response	Plow Movement
Lift/Lower Button Pressed	Current Sent to Solenoid	Energizes, Moves Plunger	Hydraulic Fluid Directed to Lift Cylinder	Blade Lifts

The reliability and proper functioning of these solenoids are paramount to your snow plowing efficiency and safety.

For a comprehensive understanding of the specific solenoids used in your Fisher Plow and their maintenance, please refer to the detailed diagrams and service manuals provided by Fisher.