Towing Vehicle’s Rear Suspension - Bailey 2002 Series Owner's Manual

Chapter 2
ii. Above 1600cc petrol or 1800cc diesel such engines should manage a
caravan weighing up to 100% of the kerb weight of the towing vehicle
and still give adequate performance.
The towing vehicle manufacturer's towing limit is, in some cases, less
than the kerb weight.
Vehicles with automatic transmission may need an oil cooler fitted or the
SAE rating of the gearbox fluid increased when towing. The advice of the
vehicle manufacturer should be sought.
The law requires that caravans & their towing vehicles & the loads they
carry must be in such a condition that no danger or nuisance is caused.
(Regulation 100 of the Road Vehicles [Construction and Use] Regulations
1986).
Towing vehicle's rear suspension
It is important that the towing vehicle's rear suspension is not deflected
excessively by the noseweight on the tow ball. If it is excessive the steering
and stability will be affected and at night the headlight beam is likely to
dazzle other drivers which is illegal.
The greater the towing vehicle's tail overhang (the distance between the
rear axle and the tow ball) the greater the effect the noseweight will have
on the towing vehicle's rear suspension.
After trying out the caravan it may be found that stiffening of the rear
suspension is necessary - but note that this may give the towing vehicle a
firmer ride when not towing.
There are a number of suspension aids available and advice should be
sought on which to use and how to fit.
It is important to ensure that the caravan is towed either level or slightly
nose down. If it is not, then the car's towbar may be at the wrong height.
Caution: Always consult your tow vehicle manufacturer for advice on towing
and the loads that the vehicle is capable of towing.
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CARAVAN & TOW VEHICLE