34. Locomotives. Forty 5,000 mile inspections, thirty 10,000 mile inspections, twelve 30,000 mile inspections and two 480,000 mile inspec- tions were performed on the eight diesel electric locomotives. The engine lower main bearings and their thrust collars of locomotives Nos. 51 and 54 were renewed. The cylinder liners of locomotive No. 56 and piston rings of locomotive No. 57 were renewed. Twelve new injectors were fitted to locomotive No. 52. Four locomotives had their wheels renewed and two others had their wheels turned. A total of six locomotives had their traction motors completely overhauled.
35. The availability factor of the diesel electric locomotives for the year was 87.23%, showing an increase of 1.14% over the previous year. Higher availability of locomotives was successfully achieved in coping with the growing volume of goods traffic in spite of the large amount of repair work done during the year. This was due to the good efforts made by the workshop staff to improve planning and control of work schedules so that the least time was taken for maintenance and repair of locomotives and the best overall result of operation could be obtained.
36. The maintenance cost of the diesel electric locomotives rose from $0.428 to $0.443 per km. The rise was attributable to the increased labour wages during the period under review.
37. Carriages and Wagons. All carriages and wagons were main- tained in good order. The following rolling stock were overhauled and painted:
(a) Carriages Nos. 107, 109, 110, 112, 115, 201, 301, 303, 307, 308,
309, 312, 313, 320, 321, 322, 323, 330, 340, 342, 347 and 350.
(b) Thirty five wagons of various types.
38. Electrical Work. All electric lighting, power signals and other electrical equipment in the railway were maintained to a good standard. In order to facilitate night unloading of goods, nine 400 watt mercury discharge lamps were erected at Blackhead Goods Yard. One additional mercury discharge lamp was installed at Fanling Station and 4 yard lights were erected in the staff quarters at Luen Wan Street during the year.
39. 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 105 brass castings, 132 iron castings, 32 aluminium castings, 55 antimonial lead castings, 3 phosphor bronze castings, 200 portable traffic signs, 6 traffic pagodas, 3 hot water
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