Bailey Discovery 100, Руководство пользователя

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Caravan Equipment
4
4.16 THE ALKO CARAVAN CHASSIS
4.16.1 Chassis members
The recommended tow vehicle coupling height is 415 +/- 35mm from the ground to the centre of the
ball.
Manufactured from high quality steel, the chassis has extra deep sections to provide strength at points
of maximum stress. Large elongated holes are punched in the longitudinal and towbar, (‘A’ frame)
members, to reduce weight to a minimum. Each hole incorporates a return flange to maintain the
required strength and provide rigidity in the extra deep sections.
The chassis frame is of a bolted construction which, should the need arise, allows replacement of
individual parts.
The chassis is Hot Dipped Galvanised. This is regarded as one of the best forms of corrosion protection.
It does however require minimal maintenance in certain circumstances.
When new the chassis is of a bright and shining appearance. As the galvanising cures during the initial
2 to 3 month period, this will gradually change to a medium to dark grey colour. This grey finish is the
ideal, giving the correct protective coating. During this curing period the surface should be protected to
avoid possible wet storage stain, in the form of a soft, light coloured, porous, oxidation layer. If the
chassis members are in contact with any salt deposits from roads this should immediately be washed
off with a high pressure washer. Salt attracts moisture allowing the surfaces to remain wet, this prevents
curing and also allows formation of wet storage stain.
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It is recommended that the chassis be washed off, using a pressure washer on an annual
basis (particularly after winter usage) to avoid undesirable build up of salt and dirt deposits.
The galvanised chassis should not be painted or subjected to any other protective treatment.
Should the galvanising become superficially damaged exposing the steel core, this should be cleaned
and treated with a cold galvanising spray obtainable from vehicle accessory outlets.
Damage to chassis members through impact etc. must not be straightened or welded. Damaged chassis
members must be replaced.
4.16.2 Drilling or welding of parts or accessories
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This chassis is designed and built to precise tolerances and must not be drilled or welded.
4.16.3 Independent suspension
The ALKO rubber suspension is designed and developed to suit all types of road conditions and is
maintenance free. Three rubber elements are contained within a hexagonal axle tube. These provide
suspension and have inherent damping characteristics. (Only the hubs and wheel brakes require attention
- see axle booklet Part No. 580458).
4.16.4 Coupling head
The ball couplings are entirely automatic in operation and designed for one hand operation to suit the
50mm international ball recommended by the British Standards Institution, National Caravan Council
and the Society of Motor Manufacturers and Traders.