Snow Plow Maintenance: Preparing Your Equipment for Next Season

Why Off-Season Maintenance Matters

If you own a snow plow — whether it's a personal truck plow or a commercial unit — the worst thing you can do is park it after the last storm and forget about it until November. Months of sitting idle with salt residue, worn parts, and neglected hydraulics is a recipe for expensive breakdowns when you need the equipment most.

The end of plow season (typically March or early April in our area) is the perfect time to inspect, clean, and repair your equipment. You'll have time to source parts, make repairs at a relaxed pace, and ensure everything is ready to go when the first flakes fall next season.

The Complete Plow Maintenance Checklist

Cleaning & Rust Prevention

Pressure wash everything. Salt and road chemicals are incredibly corrosive. Give the plow, frame, mounting hardware, and undercarriage of your truck a thorough pressure wash.

Inspect for rust. After cleaning, look for areas where paint has chipped or rust is forming. Sand these spots down to bare metal, apply a rust converter, and repaint or undercoat.

Lubricate all moving parts. Hit every pivot point, pin, and hinge with a quality grease. Pay special attention to the trip springs and A-frame pivot.

Cutting Edge & Shoes

The cutting edge is the steel or polyurethane strip along the bottom of the blade — it's what actually contacts the pavement.

• Measure the remaining thickness. Most cutting edges start at about 6 inches tall. Replace when they're worn to 3 inches or less.
• Check for uneven wear. If one side is more worn than the other, your plow may need adjustment.
• Inspect shoes (the small runners on each side of the blade). Replace if worn down — they protect the cutting edge on gravel surfaces.

Hydraulic System

The hydraulic system is the heart of your plow operation:

1. Check fluid level and top off with the manufacturer's recommended hydraulic fluid
2. Inspect all hoses for cracks, bulges, or leaks — replace any that show wear
3. Test all functions — raise, lower, angle left, angle right. Listen for unusual sounds
4. Check the hydraulic pump for leaks around seals
5. Replace the hydraulic filter if your system has one

Electrical System

Plow electrical systems take a beating from moisture, salt, and vibration:

• Inspect all wiring for exposed or damaged insulation
• Clean all electrical connections and apply dielectric grease
• Test headlights and marker lights — replace any burnt bulbs
• Check the controller for responsiveness and proper function
• Inspect the solenoid and motor connections

Mounting Hardware

• Check all bolts and pins for wear or damage
• Inspect the mounting frame on your truck for cracks, especially around weld points
• Test the quick-connect mounting system if applicable — it should engage and release smoothly

Trip Springs & Safety Mechanisms

Trip springs protect your plow (and your truck) when you hit an obstacle:

• Inspect springs for cracks or stretching
• Test the trip mechanism manually — the blade should trip forward smoothly and return to position
• Replace springs in pairs if one shows wear

Creating a Maintenance Schedule

When to Call a Professional

Some repairs are beyond the scope of a typical homeowner or small operator:

• Hydraulic cylinder rebuilds require specialized tools and seals
• Frame welding should be done by a certified welder
• Electrical system rewiring can be complex on newer electronic systems
• Blade straightening after hitting a serious obstacle needs a hydraulic press

Don't wait until the first snowfall to discover your plow isn't working. A little maintenance now saves a lot of headaches (and money) later.