Electronic lubrication for buses
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• Electronically-controlled automatic chassis lubrication is to be fitted to 150 Leyland Atlantean double-deckers ordered by Glasgow Corporation Transport. The system chosen is the Higgs Electromatic timed-injection lubrication system, manufactured by Higgs Lubrication of Glasgow.
Every 30 minutes a five second shot of 140 SAE oil is supplied by the unit to 36 points on the vehicles. The system is operated by a high pressure electrically-driven gear pump which delivers the oil at up to 800 lb p.s.i. A 6mm "ring main" pipe carries the oil around the chassis from a 0.75 gal reservoir and the lubrication points are fed through short nylon pipes attached by metering valves, to the main pipeline. By varying the valve sizes, an exact amount of oil is applied to each point.
The Glasgow undertaking has carried out tests on the Higgs Electromatic for over 18 months on an ordinary service vehicle which has, to date, run for 80,000 miles without trouble. Routine maintenance was carried out every seven to 10 days.
Mr. E. R. L. Fitzpayne, general manager of Glasgow Corporation Transport, sees one of the advantages of the system as the saving of several hours a week of maintenance time per vehicle and reduced wear on moving points.