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Up in the air over LSDs

27th November 1982
Page 18
Page 18, 27th November 1982 — Up in the air over LSDs
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HAVING now recovered from the rigours of the Motor Show and caught up with my reading of CM, I would like to take issue with Wally Batstone and Keith Buckby with regard to load sensing devices.

All that they say about LSDs fitted to leaf springs confirms my own researches, and no haulier I met at the Show had a good word to say about them. However, LSDs are very successful when used in conjunction with air suspension. The pressure in the air bat is directly proportional to the load on the axle (during normal operation the pressure varies from .9 bar to 4.8 bar). The LSD can therefore, be accurately set by the trailer manufacturer and should not need resetting in service.

This attribute of air suspension, coupled with the improved reliability of the latest generation of air suspensions and other benefits such as improved tyre wear, load protection and longer trailer body life have meant that air suspension's share of the Dutch market has risen from almost nothing to 60 per cent in only five years.

I congratulate CM and the participants for a lucid and very readable article and I look forward to the next one, perhaps with a similar panel on the implications of the new weights for vehicle design and conversion.

BRIAN ALCOCK Sales Manager Industrial Machinery Supplies

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