Preventative Maintenance Tips for Equipment Trailers

Expert Advice on Maintaining Compact and Heavy Equipment Haulers

If you want to keep your trailer in top shape, it’s good practice to follow a detailed maintenance schedule to maximize your trailer’s performance and longevity. Establishing a maintenance schedule can also help prevent costly repairs and protect your bottom line, so let’s talk about maintenance for trailers.

While you should always consult the owner’s and axle manuals for your individual trailer, there are some general safety guidelines all trailer owners should be aware of when it comes to maintaining and operating your trailer. For your convenience, we’ve arranged this information by different time intervals to follow throughout the year.

Before You Tow

Each time you plan to tow your trailer, it’s important to take some time to inspect and service the following items:

• Brakes (if equipped) — Check operation.
• Breakaway Battery — Ensure connections are clean and the battery is fully charged.
• Safety Chains and Hooks — Check for wear and damage.
• Coupler and Hitch Ball — Check for cracks, pits, and flats. Replace coupler and hitch ball, if needed. Grease, and then check the locking device and replace when worn.
• Ring and Pintle — Follow the same steps as you would for the coupler and hitch ball. Replace if needed.
• Tires — Check tire pressure when cold and inflate as needed. Also, check for damage.
• Wheels (lug nuts or bolts and hub) — Check for tightness and tighten. For new or remounted wheels, check torque after the first 10, 25, and 50 miles of driving and after any impact.

Monthly Maintenance for Trailers

Once per month, inspect and service your trailer for:

• Lubrication — Lubricate gate and door hinges if your trailer is equipped.

Every Six Months

At six-month intervals, be sure to inspect and service the following areas on your trailer:

• Brakes — Check electric brakes (magnet, controller in tow vehicle) for wear, current draw, power output, modulation, and overall operation; inspect surge brakes for proper function and master cylinder level; adjust brake shoes and drums.
• Tires — Thoroughly inspect tread and sidewalls. Replace tires when treads are worn and/or the sidewall is worn or has a bulge. Rotate tires every 5,000 miles.
• Safety Chains and Hooks — Check for wear or damage.
• Coupler and Hitch Ball —  Check for cracks, pits, and flats. Replace coupler and hitch ball, if needed. Grease, and then check the locking device and replace when worn.
• Ring and Pintle — Follow the same steps as you would for the coupler and hitch ball.
• Wheel Bearings — Check for loose, worn, or damaged wheel bearings. Lubricate the bearings as needed.

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Annual Maintenance for Trailers

Lastly, every year, check and service the following components on your trailer. As a reminder, trailers should also be professionally inspected annually, as well as after any impact incidents.

• Brake Shoes and Drums (all types) — Check for scoring and wear. Replace per manufacturer specifications.
• Jack, Drop-Leg (if equipped) — Grease gears at the top.
• Structure Frame Members — Inspect all frame members, bolts, and rivets. Repair or replace damaged, worn, or broken parts.
• Structure Welds — Inspect and repair all welds as needed.
• Wheel Bearings — Disassemble, inspect, assemble, and repack. Replace immediately if immersed in water.
• Wheel Rims — Inspect for cracks and dents and replace as needed.
• Axle Attachment Bolts — See your dealer for inspection.
• Brake Wiring — Check for bare spots, fraying, etc. and replace as needed.

Longevity and Reliability

A properly maintained trailer will serve you and your business well for many years, and the same will make for a safer haul each time you tow it. If you have specific questions regarding your trailer, consult your owner’s manual or reach out to your dealer.For additional trailer safety tips, make sure to check out the resources on the Carry-On Trailer website and YouTube Channel.

Scott Sittler is the director of marketing for Carry-On Trailer, the No. 1 best-selling brand of trailers in America. With a rich background in marketing, Sittler has also played key roles at Husqvarna and Ingersoll Rand. He led marketing initiatives that strengthened brand presence and customer engagement in highly competitive markets.