Your trailers work as hard as your tractors – they need the same maintenance attention. Neglected trailer maintenance leads to DOT violations, cargo damage, and roadside breakdowns. Here’s a comprehensive checklist for fleet managers and owner-operators.
Brake System Inspection
Weekly: Check brake adjustment and air system for leaks. Monthly: Inspect brake linings, drums, and chambers. Annually: Complete brake overhaul and adjustment documentation for DOT compliance.
Tire Inspection and Maintenance
Check tire pressure before every trip – underinflated trailer tires cause blowouts and poor fuel economy. Inspect for uneven wear patterns that indicate alignment or suspension issues. Replace tires before tread depth reaches 4/32 inch.
Lighting and Electrical
Test all lights during pre-trip: brake lights, turn signals, marker lights, and reflectors. Check the seven-way connector for corrosion and damage. Replace any burned-out bulbs immediately.
Coupling Equipment
Inspect kingpin for wear and damage. Check glad hands and air lines for cracks and leaks. Ensure landing gear operates smoothly and holds the trailer securely.
Suspension System
Look for cracked or broken leaf springs, worn bushings, and damaged air bags. Check shock absorbers and torque arms. Suspension problems cause uneven tire wear and poor handling.
Floor and Deck Condition
Inspect trailer floors for soft spots, broken boards, and holes. Damaged floors can collapse under heavy loads. Address repairs before cargo damage occurs.
Doors and Seals
Check door hinges, latches, and seals. Damaged doors compromise cargo security and allow water damage. Rear door hinges are especially prone to wear.
Lift Gate Maintenance
If equipped, service lift gate hydraulics regularly. Check hydraulic fluid levels, cylinder condition, and platform integrity. Lift gate failures delay deliveries and risk injuries.
Roof and Sidewalls
Inspect for holes, tears, and rust. Water infiltration ruins cargo and accelerates structural deterioration. Address roof damage promptly.
Refrigeration Units (Reefers)
Service reefer units according to manufacturer schedules. Monitor temperatures closely and address cooling problems immediately to protect temperature-sensitive cargo.
Professional Trailer Repair in NYC
SJ Express Mobile Roadside Repairs handles complete trailer repairs including doors, lift gates, brakes, lights, and structural repairs. Our mobile service comes to your location in Brooklyn, NYC, and the Tri-State area. Call (800) 406-3011 for trailer maintenance and repair.