39. The cost of maintenance of the diesel-electric locomotives rose from $0.344 to $0.366 per km. The slight increase was due to increasing age of the locomotives and the renewal of many parts during the year under review.
40. Carriages and Wagons. In addition to routine maintenance, the following items were the more important work done on carriages and wagons:
(a) During the year the remaining three wooden bodied carriages Nos. 202, 304 and 316 were rebuilt with steel, thus completing the five- year programme for the conversion of sixteen wooden bodied carriages to steel for reasons of both passenger safety and economy in maintenance.
(b) Carriages Nos. 107, 110, 207, 302, 312, 329 and 331 were over- hauled.
(c) 58 wagons were given a general inspection and repair.
41. Work Done for Other Government Departments. A great amount of work was done for other departments of Government. The most important items were the manufacture of 149 traffic bollards, 10 traffic pagodas, 7 hot water cylinders, 80 spalling hammers, the repair of 66 refuse hand carts and the machining of a number of 48" diameter cast iron pipes.
42. Statistics. (a) The average consumption of diesel fuel for the year under review was 2.89 kgs. per engine km. as against 2.94 kgs. per engine km. for the previous year. The decrease in consumption was due to the renewal of a number of pistons and rings of the diesel engines when they reached the repair limits during the year.
(b) Coal consumption was 13.83 kgs. per train km. and furnace oil consumption was 10.68 kgs. per train km. Since the mileage operated by the steam locomotives was comparatively small, these figures cannot be used as indices for the operating efficiency of the steam locomotives.
(c) Statistical statements relating to analysis of train and locomotive kilometrage, coal and fuel oil running expenses, consumption of lubricants and costs of repair to locomotives, carriages and wagons will be found at Appendices X to XV while classifications of rolling stock are at Appendices XVI to XX.
WAY AND STRUCTURES
43. Maintenance. Way and structures were maintained in good order during the year.
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