Free trailer annual service checklist
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A step-by-step annual service procedure for flat top, drop deck, tipper and general purpose trailers. Covers coupling and drawbar inspection, brake system, wheel bearings, tyres, suspension, chassis and frame, deck and load restraint, lighting and wiring, compliance checks, landing gear and greasing all pivot points. Includes fluid specifications, parts list and technician sign-off. This page explains what the service involves, how to perform it, and offers a free PDF-ready form you can download straight away.
Last updated: 2026-03-26 · MapTrack
Commercial Director
How to use: Fill trailer details, then work through each service action. Tick Done as each task is completed. Record brake lining measurements, tyre condition and any defects in the notes column. Set the next annual service date and sign off.
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- ✓ Covers flat top, drop deck, tipper and GP trailers
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See the first part of the service procedure below. Enter your email above to download the full trailer annual service procedure (PDF-ready).
What is a trailer annual service?
A trailer annual service is a comprehensive inspection and maintenance procedure performed once a year (typically aligned with registration renewal). It covers every system on the trailer: coupling and drawbar, brakes, wheel bearings, tyres, suspension, chassis and frame, deck and load restraint, lighting and electrical, compliance markings, landing gear and lubrication. Unlike a daily pre-trip check (which the driver performs before each trip), the annual service involves hands-on maintenance: adjusting or replacing brake linings, repacking bearings, torquing wheel nuts, greasing pivot points and thoroughly inspecting structural components. It is typically performed by a qualified mechanic or trailer technician.
Benefits of scheduled trailer servicing
- Road safety: brakes, tyres, lights and coupling are the most critical safety items on any trailer. Annual inspection catches wear and defects before they become dangerous.
- Compliance: documented annual service records satisfy registration, NHVR and Chain of Responsibility requirements. Many states require an annual inspection for trailer registration renewal.
- Reduced breakdowns: wheel bearing failure, brake fade and tyre blowouts are the most common roadside trailer incidents. All are preventable with regular servicing.
- Lower repair costs: replacing brake linings and repacking bearings during an annual service costs far less than an emergency callout or tow after a roadside failure.
- Extended trailer life: inspecting and maintaining chassis, suspension and structural components prevents corrosion and fatigue cracks from becoming terminal.
Benefits of digitising forms in MapTrack
When you move from paper or static PDFs to digital forms in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
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- Link every form digitally as a PDF to the relevant asset, location or person.
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- Ability to share forms digitally.
- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
- Electronic signatures.
- Edit forms later without reprinting.
- Restrict permissions (who can view, complete or approve).
- Build forms with AI (describe what you need and MapTrack suggests the form).
Book a demo to see digital service procedures and date-based scheduling in MapTrack.
Service actions included in the annual procedure
This service procedure covers 19 service actions across 7 system areas:
- Coupling and drawbar: inspect drawbar and coupling for wear/cracks, check safety chains condition and attachment points.
- Brakes: inspect brake system (electric magnets or hydraulic callipers), adjust or replace brake shoes/pads, measure and record lining thickness.
- Wheels and bearings: check wheel bearings (repack with EP2 grease if required), torque wheel studs, check tyre condition, tread depth and pressures (all positions including spare).
- Suspension: inspect leaf springs, bushes, U-bolts, shackles and hangers.
- Chassis and structure: check frame for cracks, corrosion and damage, inspect deck/floor, check tie-down points and load restraint hardware.
- Electrical and lighting: test all lights, inspect wiring harness and connectors, check reflectors and conspicuity markings.
- Compliance and landing gear: check registration label and expiry, inspect mudguards, inspect landing legs/jockey wheel, grease all pivot points.
Fluid specifications
Trailers have minimal fluid requirements compared to powered vehicles.
| System | Type / Grade | Approx. Capacity |
|---|---|---|
| Wheel bearing grease | EP2 lithium complex | As required |
| Brake fluid | DOT 3 or DOT 4 (hydraulic brakes only) | As required |
Specifications are general guidelines. Always refer to the manufacturer's service manual for your specific trailer.
Parts and consumables
Have the following parts and consumables ready before starting the annual service:
- EP2 grease cartridges - 2-4
- Brake linings / pads (if replacing) - as required
- Wheel bearing kit (if repacking) - as required
- Light globes (if replacing) - as required
- Tyres (if replacing) - as required
Inspect components first, then source replacement parts as needed. Look up part numbers in the manufacturer's parts manual.
How to perform a trailer annual service
- Park the trailer on level ground and chock the wheels. If attached to a tow vehicle, apply the vehicle park brake. Disconnect the electrical plug for safe inspection.
- Record the trailer details (registration, type, make/model, VIN) at the top of the service procedure form.
- Start with the coupling and drawbar: inspect for wear, cracks and excessive play. Check safety chains and attachment points.
- Inspect the brake system: check brake magnets (electric) or callipers (hydraulic), measure and record lining thickness, adjust or replace as needed.
- Check wheel bearings for play and noise. Repack with EP2 grease if required. Torque all wheel nuts to spec.
- Check tyre condition, tread depth and pressures on all positions including the spare.
- Inspect suspension components: leaf springs, bushes, U-bolts, shackles and hangers.
- Check the chassis and frame for cracks, corrosion and damage. Inspect the deck/floor and all tie-down points and load restraint hardware.
- Reconnect the electrical plug. Test all lights (tail, brake, indicators, clearance, number plate). Inspect the wiring harness and connectors. Check reflectors and conspicuity markings.
- Check registration label, inspect mudguards, inspect landing legs/jockey wheel. Grease all pivot points. Record any defects in the notes section. Set the next annual service date and sign off.
In MapTrack, you can schedule annual services by date, get automatic reminders before registration expiry, complete procedures on mobile and link every record to the trailer. Book a demo to see how.
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Back to download formFrequently asked questions
- What is included in a trailer annual service?
- A trailer annual service covers 19 service actions across 7 areas: inspecting the drawbar and coupling (50 mm ball or pintle hook) for wear and cracks, checking safety chains, inspecting the brake system (electric magnets or hydraulic callipers), adjusting or replacing brake shoes/pads, checking wheel bearings, inspecting and torquing wheel studs, checking tyre condition, tread depth and pressures (all positions including spare), inspecting suspension (leaf springs, bushes, U-bolts, shackles, hangers), checking the chassis and frame for cracks and corrosion, inspecting the deck/floor, checking tie-down points and load restraint hardware, testing all lights, inspecting the wiring harness and connectors, checking reflectors and conspicuity markings, checking registration label and expiry, inspecting mudguards, inspecting landing legs/jockey wheel, and greasing all pivot points. It takes approximately 2 to 4 hours.
- How often should a trailer be serviced?
- Most trailers require an annual service as a minimum, aligned with registration renewal. Trailers in heavy or continuous use (long-haul, construction, mining) may benefit from more frequent inspections every 6 months. Daily pre-trip inspections by the driver should check lights, tyres, coupling, chains and load restraint before every trip. Always refer to the manufacturer service manual and your state or territory registration requirements.
- What types of trailers does this template cover?
- This template is designed for common commercial trailers including flat top trailers, drop deck trailers, tipper trailers and general purpose trailers. The service actions cover coupling, brakes, bearings, tyres, suspension, chassis, lighting and load restraint, which apply to most trailer types. Specialised trailers (refrigerated, tanker, livestock) may require additional checks specific to their equipment.
- Is the template free to use without MapTrack?
- Yes. Download and use the trailer annual service procedure for free. Open the file and use your browser's Print, then Save as PDF. No MapTrack account required. If you later want digital service procedures linked to each trailer with date-based scheduling, compliance tracking and alerts, we would be happy to show you MapTrack.
Need digital service procedures for your trailer fleet?
Register every trailer in MapTrack. Set up annual service schedules, track registration expiry, complete procedures on mobile, and get automatic alerts when the next service is due.