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Automated chassis cleaning
Page 53
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• The first fully automated chassis cleaning station in Britain, and probably in the world, came into commercial use recently, at a Manchester cleansing depot.
The chassis cleaning unit, developed by Jaco Engineering Ltd, Birmingham, with the assistance of the National Research Development Corporation and London Transport, has been installed at the Trafford Park depot of Chassis Clean Ltd, which is to provide a specialized service for commercial vehicles.
High-pressure jets of cold water are used in the automatic cleaning operation, it taking perhaps 40 minutes to deal with a 30ft vehicle.
Jets working at a pressure of 3501b per sq. in. are carried on an oscillating nozzle head which is mounted on the swinging arm assembly of a trolley. This trolley moves on rails and, by means of a winch arrangement, travels beneath the vehicle. In front and rear axle areas, "dwell" in the movement assures a concentration of jets in places where there is considerable building up of road dirt.
Approximately 450 gallons of water are needed to clean a 36-footer. When the process is complete the water is filtered and returned to storage for further use. Three other chassis cleaning depots are planned and at a later stage it is hoped to set up a network covering the country.