We advise that the following checks should be made before driving.

1.FIFTH WHEEL. Check that the fifth wheel is correctly engaged. Test by pulling the tractor forward slightly with the trailer handbrake on. If a safety lock is fitted to the fifth wheel check that it is engaged.

2.AIR LINES. Before connecting the air susies to the trailer ensure that all couplings are clean and securely mounted. After coupling make sure the connections are tight. Susies should be long enough to allow 90 degree turns without overstretching or fouling on bodywork.

3.ELECTRICAL. Before connecting the electrical susies to the trailer, check that both plug and socket are clean and securely mounted and that there are no signs of fraying or cuts in the susie. After connection check that all the circuits are functioning correctly. Replace any blown bulbs or broken lenses.

4.NUMBERPLATE. This should be firmly fixed into its holder. It should be clean: the figures should not be obscured in any way. It is illegal to use chalked-on numbers.

5.SPRAY SUPPRESSION. Check that mudwings, flaps etc. are firmly fitted.

6.TYRES. Check condition of tyres, particularly uneven wear, deep cuts embedded nails etc. Pressures should be checked periodically with a gauge. Look for stones trapped between twin tyres.

7.WHEELS. Wheel nuts should be regularly checked for correct torque. Never drive with loose or missing wheel nets.

8.LANDING LEGS. After coupling up, the legs should be raised to their fullest extent.

9.HANDBRAKE. After coupling up, ensure that the handbrake is off. If a mechanical handbrake is fitted, see that the wire rope is slack . (don't see many of this type now.) If spring brakes are fitted,release the brakes by pulling out the red button.

10.AIR SUSPENSION. If the trailer is fitted with air suspension, ensure the air bags are fully inflated to the correct ride height before moving off. If a raise / lower valve is fitted, check that it is in the "ride" or "drive" position. If the suspension has been dumped or has lost air for any reason, then the air bags will not inflate until after the brake circuit has been fully charged. The air pressure buzzer fitted in the cab does not indicate that the suspension is properly inflated. Driving with the air bags partly deflated will damage them.