Trailer Fault Finding: Coupling & Brakes Gone Rogue? Here’s What to Check
Trailer brakes and couplings can be fussy things. One minute they’re working fine, the next your trailer feels like it’s trying to plough a field sideways. Whether it’s sticking brakes, overheating hubs, or a hitch that’s giving you grief, here’s Brent’s guide to finding and fixing the most common brake and coupling faults before they ruin your day (and your tyres).
When Your Brakes Won’t Budge
Ever tried to tow off and realised your trailer’s going nowhere? You’re not alone. One nasty issue that’s cropped up over the years is brake linings sticking to the drum, especially after sitting around damp or unused.
Here’s how to stop that happening:
Don’t park with the handbrake on for long periods, particularly in damp or wet conditions. Instead, leave it off and chock the wheels.
Get your trailer out and rolling occasionally, or have it serviced regularly.
But once it’s home, get that hub stripped down and cleaned properly.
Common Brake & Coupling Problems (and What They Mean)
Brakes Overheating
Fix: Clean, adjust correctly, and make sure the handbrake’s releasing properly.
Weak Braking
Fix: Clean, re-set, and check all clearances. If the drawtube’s bent or dirty, sort it.
Jerky or Uneven Braking
Fix: Replace damaged parts and re-set brake balance evenly.
Reversing Difficult
Fix: Loosen and re-set.
Handbrake Weak or Excessive Travel
Fix: Adjust the system and eliminate excessive movement.
Coupling Problems
Fix: Clean and grease regularly.
Hot Brakes? Check Those Bearings
If your brakes have overheated at any point, don’t ignore it. Always strip, inspect, and re-grease after an overheating incident - or replace the bearings entirely if they’re rough or scorched.
When in Doubt, Get It Looked At
If you’re still having repeated brake or coupling issues, or your trailer just doesn’t feel right, contact the axle or brake manufacturer’s service department. They can help identify whether you’ve got a component mismatch, misaligned coupling, or something more serious.
Final Word from Brent
Keeping your trailer’s brakes and coupling in good nick isn’t just about comfort - it’s about safety. A sticky hub or dodgy drawtube can turn a quick tow into an expensive recovery. Give it regular love, keep it clean, and don’t park it wet.
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-Brent
