Systematic and proper maintenance can effectively extend the service life of your food trailer, reduce unexpected failures during towing and business hours, and ensure safe towing and stable on‑site operation.
1.Interior cleaning & sanitization: Thoroughly clean worktops, sinks and cabinets; remove food residues to prevent oil‑related component corrosion.
2.Water system: Inspect fresh‑water tank; fully empty grey & waste‑water tanks; check pipe fittings for water leakage.
3.Gas system: Turn off main gas valve; inspect gas pipelines and connections for leakage; check gas hose for aging or cracks.
4.Electric & cooking equipment: Degrease equipment surfaces after power‑off cooling; check sockets and switches for overheating.
5.Doors & service windows: Keep tightly closed and locked; clean debris from rubber seals.
6.Pre‑towing visual check (before every road trip): Inspect tires, taillights and trailer plug for damage.
Recommendation: Every 3 months for frequent short‑haul use; every 5000 km for long‑distance towing.
1.Towing & Hitch System (Core for towable trailer) Inspect and fasten hitch lock, safety chains and shock‑absorbing parts; apply grease to hitch ball; test and adjust handbrake and trailer brake system; inspect brake hoses for wear.
2.Chassis & Tires Check tire pressure and tread wear; retorque wheel nuts; inspect suspension and shock absorber for deformation or cracks.
3.Body Structure Check frame welds and body panels for rust and impact damage; lubricate hinges and latches; unclog drain holes to avoid water accumulation and corrosion.
4.Fresh‑waste Water System Tighten pipe connections; clean water filters; descale water tanks; clear waste pipelines to avoid blockage and backflow.
5.Gas System Check gas hose aging and replace if needed; test gas regulator pressure; perform full‑system gas leak test.
6.Electric System Examine wiring harness and 7‑pin trailer connector; tighten terminals; test residual‑current device; maintain battery voltage and connections.
7.Refrigeration & Cooking Equipment Clean refrigeration unit filter and heat sink; clear clogged burner nozzles; deep degrease internal components; test all functions.
1.Cold Winter Conditions
Full water‑system freeze protection; drain all tanks and pipelines to avoid frost cracking; chassis anti‑rust treatment; battery cold‑weather protection.
2.Hot & Rainy Summer
Clean dust from heat‑dissipation parts; moisture‑proof treatment for electric connectors; protect gas equipment from direct sun exposure; inspect roof and joint sealant for water leakage; monitor tire pressure under high temperature.
3.Coastal Salt‑spray Environment
Strengthen anti‑rust cleaning for chassis and towing hardware to minimize salt corrosion.
Important Notice: Do NOT disassemble towing brakes, hitch assembly, gas‑leak or short‑circuit related components. Stop operation immediately and submit service booking for professional engineers.
If the problem persists after self‑check, please submit your service booking for professional technical support.
