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Hay, Forage & Livestock EquipmentTrailer Maintenance for Livestock
Livestock trailers get hard use: wet floors, manure, rough lots and long gaps between trips. A regular inspection routine catches the problems that cause breakdowns and injuries on the road.
Key points
- Walk around the trailer before every haul.
- Clean out manure and let the floor dry after each trip.
- Treat brakes, bearings and tires as safety items, not extras.
- Fix weak floor sections immediately.
- Keep a log of repairs and service.
What should you check before every haul?
Make a walk-around a habit before animals go on. Check the hitch coupling, the safety chains, the breakaway cable if your trailer has one, the electrical plug and the lights. Have a helper confirm brake lights and turn signals while you work the controls from the truck.
Look at the tires for low pressure, bulges and cracks. Check your trailer's label and manual for the correct pressure, and don't guess. Open and close every gate and latch to confirm they move freely.
Do the check on level ground with the trailer coupled to the truck, and do it in daylight when you can. A rushed look in the dark misses the bent latch or the pinched wire.
- Coupler latched and pinned.
- Chains crossed and secured.
- Lights, brake lights and signals working.
- Tires and wheel lug nuts checked.
- Floor clear of debris and water.
How do you keep the floor from failing?
The floor is the part most likely to hurt an animal. Manure and urine soak into boards or rot underneath, and a weak floor can give way under hoof. After each haul, remove bedding and manure and wash the interior. Let it dry before you close it up.
Probe the underside regularly for rust, soft spots and loose fasteners. Lift mats if you use them, because moisture trapped below can hide damage. Replace weak floor sections right away, or have a shop do it.
What should you do about trailer brakes and bearings?
Trailer brakes and wheel bearings are safety systems. Follow the intervals in the manufacturer's manual for inspection, repacking and adjustment. If you notice the trailer pulling to one side, a hub running hot, grease on a brake drum or a growl from a wheel, stop and investigate.
Brake work and bearing service are jobs for a qualified trailer mechanic unless you have the training and tools. A mistake here can cause a wheel to leave the axle or the trailer to push your truck on a downhill.
How do you protect a trailer from rust and weather?
Wash off manure salt and moisture, especially in the corners, and touch up scratches before rust spreads. Grease hinges and latches. On steel trailers, check welds and seams where water collects. Aluminum needs less paint care but should be checked for cracks near welds and stress points.
Store the trailer with the tongue slightly raised so water runs off, and park it on a surface that lets the floor dry. Cover tires from sun if it will sit for months.
What lighting and wiring problems should you fix first?
Trailer wiring takes abuse from moisture, vibration and manure. Look for cracked insulation, corroded connectors and loose grounds. A bad ground is behind many flickering light problems. Replace damaged plugs and wiring with parts that match the system, and keep the connections clean and dry.
Check state requirements for lighting and reflective marking with your state DOT or highway patrol, since they differ by state.
When is a repair not worth doing yourself?
Greasing, cleaning, light bulbs and gate adjustments are owner work. Axle replacement, brake repair, structural welding on frames and replacing a rotten floor under the support members are better left to a qualified trailer shop. Keep a simple log of dates, repairs and tire changes. It helps you spot patterns and supports resale value.
When you replace a part, use the manufacturer's specified parts and follow the manual's procedure. Look at wheel lug nuts at the intervals the manual gives, since they can loosen on a new or freshly serviced wheel.
How should you handle a trailer that sits unused for months?
A trailer parked for the winter or between sale seasons can quietly develop problems. Tires lose air and crack, bearings can corrode when grease dries, and wiring gets chewed by rodents. Before the first haul after storage, go through the full checklist, not only the quick walk-around.
Move the trailer a few feet periodically if you can, so the tires do not sit on one spot. Check for wasp nests in latches and light housings. If the brakes have sat a long time, have a trailer mechanic confirm they work before you load animals.
Sources and further reading
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