Snow removal is essential for maintaining safe roads and properties during the winter months. Snow plow companies must maintain the quality and functionality of their fleets during harsh weather conditions. Failure to maintain your fleet can lead to costly repairs, delays, and hazardous working conditions.
Let’s examine seven common causes of snow plow failure and provide actionable steps to prevent them. By addressing these issues, you can maintain your equipment’s usefulness and help your business perform at its best.
1. Inadequate Maintenance
One of the primary causes of snow plow failure is poor maintenance. Snow plow trucks work hard in freezing temperatures, often enduring long hours in harsh conditions.
Without proper maintenance, wear and tear can lead to premature breakdowns. Regular checks and servicing are vital to maintain your equipment’s longevity.
A maintenance checklist for snow plow trucks should include oil changes, brake checks, tire inspections, and greasing moving parts. Additionally, it’s essential to check the hydraulic systems on the plow to ensure all hoses and seals are in good condition. Establish a routine maintenance schedule to keep your plows & trucks running smoothly throughout the winter season.
2. Hydraulic System Failures
Hydraulic systems are crucial for snow plow operation, especially when raising and lowering the plow blade. These systems rely on hydraulic fluid to transmit power.
If the fluid levels are low or the fluid becomes contaminated, the system may fail to function correctly. The plow could become stuck in one position or fail to respond to commands.
To prevent hydraulic failure, regularly check the fluid levels and look for leaks in hoses or fittings. Replace worn-out seals and hoses, and always use the recommended hydraulic fluid for your plow’s system.
During colder temperatures, make sure the fluid can withstand freezing conditions to avoid the system becoming sluggish or completely failing. Mill Supply offers Hydraulic Fluid that can withstand the coldest of temperatures all the way down to -50°F; part number 155-9450.
3. Electrical System Failures
A snow plow truck’s electrical system controls essential components like the lights, wipers, and the plow lift system. An electrical system failure can render the truck unusable, even if the mechanical components are in perfect condition. Corroded or loose battery connections, damaged wiring, or blown fuses can all contribute to electrical issues.
To prevent electrical problems, perform regular battery and wiring inspections. Clean the terminals and check for any corrosion or fraying in the wiring. Replacing old or worn-out components before the season starts can prevent unexpected failures during snow removal operations.
4. Worn-Out or Damaged Plow Blades
Plow blades, also known as cutting edges, are subject to immense stress while scraping away snow and ice. Over time, they can become worn out, cracked, or damaged.
If the blade doesn’t function correctly, it can reduce the efficiency of snow removal and damage the vehicle or plow. A damaged blade can also make it harder to clear snow effectively, leading to uneven surfaces and hazardous conditions.
Regularly inspect the plow blades for any signs of wear or damage. If the blade is worn all the way up to the moldboard or has significant dents or cracks, replace it before it can cause further damage to your plow.
Consider investing in high-quality steel blades with carbide inserts designed for heavy-duty use to prolong the blade’s lifespan. Using a Sabre Cutting Edge from Mill Supply provides for the most durable solution to extend the life of your blade. Sabre blades are engineered for superior abrasion and impact resistance, featuring built-in Hardox Shield Cover Blades and thick Carbide Inserts for enhanced performance and longevity.
5. Plow Will Not Raise
When your snow plow fails to lift, it can significantly hinder your snow removal tasks. Several factors might contribute to this issue:
- Hydraulic fluid level: Insufficient hydraulic fluid can prevent the plow from raising. Ensure the hydraulic reservoir meets the manufacturer’s recommended level.
- Hydraulic pump functionality: A malfunctioning pump may not generate the necessary pressure. Listen for unusual noises indicating pump failure and consider consulting a professional for assessment.
- Solenoid or control issues: Faulty solenoids or control switches can disrupt the hydraulic system’s operation. Inspect these components for damage or wear and replace them if necessary.
- Electrical connections: Loose or corroded electrical connections can impede power flow to the hydraulic system. Regularly inspect and clean all connections to maintain proper functionality.
6. Plow Will Not Lower
A snow plow that remains elevated and won’t lower cannot perform its essential function and could potentially cause transportation delays and disruptions. Here are the most likely culprits of this frustrating problem:
- Flow control valve: A closed or obstructed flow control valve can prevent the plow from descending. Verify that the valve is open and free from debris.
- Hydraulic cylinder issues: Damage or internal corrosion within the hydraulic cylinder can impede movement. Inspect the cylinder for signs of wear and replace it if necessary.
- Solenoid malfunction: A defective solenoid valve may fail to release hydraulic pressure, keeping the plow in a raised position. Test the solenoid’s functionality and replace it if found faulty.
- Control system problems: Issues with the control module or wiring can affect the lowering function. Examine the control system for faults and repair or replace components as needed.
7. Plow Will Not Angle to the Left or Right
If your snow plow fails to angle left or right, it can significantly hinder your ability to clear snow efficiently. One of the most common causes of this issue is low or contaminated hydraulic fluid, which can restrict the flow necessary for proper angling. Ensuring the fluid is at the correct level and replacing it if it appears dirty or degraded can help restore functionality.
Additionally, worn or damaged angle cylinders may prevent the plow from moving as intended. Inspect these cylinders for leaks or structural damage and replace them if necessary.
Another possible culprit is a faulty solenoid valve, which may not be directing hydraulic fluid correctly. Testing the valves and replacing any defective ones can resolve the issue.
Electrical problems, such as defective controllers or damaged wiring, can also prevent the plow from angling properly. Checking the control system and wiring harness for faults, such as loose connections or frayed wires, and making the necessary repairs can restore full movement to your plow.
By addressing the seven most common causes of snow plow failure, you can avoid costly repairs, delays, and potential accidents. Regular maintenance, timely inspections, and proper equipment care are all key to keeping your snow plows in peak condition. Investing in quality snow plow truck accessories from Mill Supply can further enhance your equipment’s performance, ensuring that you stay ahead of the winter season.
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