Detailed Inspection Procedures
Follow these structured procedures to ensure a thorough inspection of your trailer. Adapt these steps to your specific trailer type and operational requirements.
Brake System Inspection
- Ensure trailer is properly supported with wheels chocked
- Check brake stroke measurement with brakes applied
- Inspect brake lining thickness through inspection holes
- Test brake retraction when pressure is released
- Check ABS system with diagnostic tool if available
Tire & Wheel Inspection
- Use calibrated tire gauge to check all tire pressures
- Measure tread depth with proper gauge at multiple points
- Inspect tire sidewalls with adequate lighting
- Check wheel hub oil levels and for signs of leakage
- Verify lug nut torque with torque wrench if loose nuts found
Coupling System Check
- Inspect kingpin for wear using approved measuring gauge
- Check upper coupler plate for cracks and deformation
- Ensure mounting bolts are secure and properly torqued
- Verify landing gear operates smoothly through full range
- Test landing gear for structural integrity under load
Electrical System Verification
- Connect trailer to approved electrical tester or tractor
- Test each lighting circuit independently
- Verify brake light activation with brake application
- Check ABS malfunction lamp during power-up sequence
- Trace and inspect all wiring for chafing and damage
Top 5 FAQs
- Is this checklist DOT-compliant? Yes, it covers all FMCSA-required components.
- What types of trailers does this apply to? Dry van, flatbed, reefer, tanker, lowboy, etc.
- How frequently should trailers be inspected? Daily pre-trip, post-trip, and monthly reviews recommended.
- Can I customize this list? Yes, FleetRabbit App allows easy customization and digital tracking.
- Is this for drivers or fleet managers? Designed for both – includes technical and regulatory guidance.