Preparing Your Fleet for Spring: A Maintenance Checklist

Your trucks sat through winter running shorter routes, dealing with salt-covered roads, and probably picking up a few issues that nobody noticed because volume was low. Now peak season is two months away, and a broken-down truck in June isn't just an inconvenience — it's a lost revenue day that you can't get back.

Spring maintenance isn't glamorous, but it's one of the few things in this business that's entirely within your control. Here's what to check, when to check it, and what most operators miss.

When Should You Start Spring Maintenance?

March. Not April, not "when things slow down" (they won't). By late April, your crews should be fully booked and your trucks rolling every day. Any vehicle that needs shop time should get it now while the schedule has slack.

Build a maintenance calendar that puts every truck through inspection between March 1 and April 15. Stagger them so you're not pulling your entire fleet off the road the same week. If you have 6 trucks, schedule one per week starting the first week of March.

Tires and Wheels

Winter roads destroy tires. Check every truck for:

• Tread depth — DOT minimum for steer tires is 4/32" and 2/32" for drive and trailer tires, but replace anything under 6/32". Running minimum-tread tires through a rainy spring is asking for trouble.
• Uneven wear patterns — cupping or feathering indicates alignment or suspension issues that need to be addressed before you burn through another set of tires.
• Sidewall damage — cracks, bulges, or cuts from pothole strikes. These won't show up as tread wear but can cause blowouts under load.
• Tire pressure — check cold pressure against the placard values. Tires lose about 1 PSI per month naturally, and cold winter temps accelerate the loss.
• Lug nut torque — retorque to spec. Vibration from rough roads loosens them gradually.

Don't forget the spare. Nothing worse than having a flat on a moving day and discovering the spare is bald.

Brakes

Loaded moving trucks are heavy — a 26-footer can weigh 20,000+ pounds fully loaded. Your brakes need to be 100%.

• Pad/shoe thickness — replace if under 25% remaining. Don't wait for the metal-on-metal screech.
• Rotor/drum condition — scoring, warping, or heat discoloration means replacement, not resurfacing.
• Brake lines and hoses — look for cracks, chafing, leaks, and corrosion. Salt is brutal on brake lines.
• Air brake systems (if applicable) — check compressor output, air dryer function, and all glad-hand connections.
• Parking brake adjustment — should hold the loaded truck on a grade.

If any truck has been pulling to one side during braking, don't just throw pads at it. Get the calipers or wheel cylinders checked for sticking.

Engine and Drivetrain

• Oil and filter change — if you're not already on a strict interval, spring is a good reset point. Use the manufacturer's recommended grade and interval.
• Coolant level and condition — test the freeze point and pH. Coolant degrades over time and becomes acidic, which eats gaskets and hoses.
• Belts and hoses — squeeze every hose. Anything soft, swollen, or cracked gets replaced. Check belt tension and look for glazing or fraying.
• Transmission fluid — check level and color. Dark, burnt-smelling fluid means a service is overdue.
• Air filters — winter driving kicks up sand and salt. A clogged air filter hurts fuel economy and power.
• DEF system (for newer diesels) — make sure the tank is full and the system isn't throwing codes. A DEF failure can derate your engine to 5 MPH.

Electrical Systems

• Battery load test — cold weather weakens batteries. A battery that barely made it through winter will leave you stranded in a customer's driveway in July.
• Alternator output — verify it's charging at 13.8-14.4V with accessories on.
• All lights — headlights, taillights, brake lights, turn signals, marker lights, and interior cargo lights. DOT inspectors love writing light violations.
• Backup cameras and alarms — if equipped. These aren't just safety features; they prevent backing accidents that cost you $2,000+ per incident.

Body and Cargo Area

The cargo area is your product. It's where customers' belongings live for hours or days. Walk through every truck and check:

• Ramp condition — hinges, springs, and anti-slip surface. A broken ramp on moving day is a disaster.
• Door operation — roll-up doors should operate smoothly. Lubricate tracks and replace frayed lift straps.
• Floor condition — loose or damaged floor boards create trip hazards and can damage furniture.
• Wall padding — replace torn or compressed padding. This is cheap insurance against damage claims.
• E-track and tie-down points — make sure all anchor points are secure and you have enough functional straps.
• Leaks — run a hose over the roof and watch for drips inside. Water damage claims are expensive and embarrassing.

DOT Compliance

If you operate vehicles over 10,001 lbs GVWR, you're subject to FMCSA regulations. Spring is the time to verify:

• Annual inspection stickers — check expiration dates. If any truck's annual inspection expires before September, schedule it now rather than scrambling during peak season.
• Registration and insurance cards — current copies in every truck.
• Fire extinguisher — charged and inspection tag current.
• Reflective triangles — complete set of three in each truck.
• Driver qualification files — current medical cards, MVRs, and CDL status for all drivers.

A roadside inspection failure doesn't just cost you a fine — it can put a truck out of service for hours or days, right when you need it most. Track all compliance deadlines through your dispatch system or fleet management tools so nothing slips through the cracks.

Build the Habit, Not Just the Checklist

A once-a-year spring inspection is better than nothing, but it's not enough. Build a pre-trip inspection routine that catches issues before they become breakdowns. Drivers should walk around the vehicle every morning checking tires, lights, and fluid levels. It takes 5 minutes and prevents 90% of roadside surprises.

Log everything. Maintenance records protect you during DOT audits, support warranty claims, and help you make data-driven decisions about when to repair versus replace aging vehicles. Your reporting tools should make it easy to track cost-per-mile by vehicle so you know when a truck is costing more to maintain than it's worth.

Peak season rewards the prepared. Get your fleet right in March, and you'll spend June focused on moving customers instead of fixing trucks. Schedule a demo to see how Elromco helps moving companies keep their operations running smoothly from dispatch to delivery.