Many drivers refuse to tow trailers and in truth, they can be accidents no longer waiting for a place to happen. However, many potential problems can be avoided by regular inspection and maintenance. Here are some suggestions:
1. Left side wheel nuts. Think about it – right hand threads on the RIGHT SIDE of the trailer will try to tighten themselves as the wheel rotates. BUT the right hand threads on the LEFT SIDE wheel nuts are trying to undo themselves. Check them for tightness BEFORE setting out to avoid losing the wheel when the nuts spin off. Don’t laugh – this happens frequently
2. Don’t expect the ball of the coupling to stay tight – vibration may cause the nut to loosen even if fitted with a spring washer, resulting in it literally falling off the tongue. Remove the ball joint, drill a 4 mm hole right through the shaft below where the nut will sit when tight. Replace it and insert a heavy split pin through the hole you drilled.
3. Though hard to believe, the spring pin securing the towbar tongue to the frame has been know to fall out, Then it is only a matter of time before the entire tongue works its way out of the frame. Because the safety chain is usually shackled to the tongue and not the actual vehicle, the trailer will fall off along with the tongue. On a highway this could result in serious accident to a following vehicle. The solution is to replace the spring pin with a bolt and nylock nut OR replace the entire pin with a 1/2″ high tensile bolt and nylock nut. Do NOT use plain nuts or they will work loose too.
4 Driving techniques should be practiced BEFORE setting out onto the public roads. This especially means learning how to back and turn safely without hitting another vehicle OR jack-knifing the trailer into your vehicle. If rear vision is poor, screw or bond a length of brightly coloured metal or plastic so these sit proud of the extreme front edges of the trailer and can be seen easily in your side mirrors
Finally, check your wiring before setting out. It is easier to repair a broken wire at home than do it on the roadside – especially if the Fuzz have stopped you for not having working lights